diff --git a/BUILD b/BUILD
index ca9ad697ccc88195e685f757802d815fc0138d9d..3e742e51f696057aea5e609ac9a3f02119c6e98f 100644
--- a/BUILD
+++ b/BUILD
@@ -186,11 +186,11 @@ cc_library(
     "src/core/lib/iomgr/iomgr.h",
     "src/core/lib/iomgr/iomgr_internal.h",
     "src/core/lib/iomgr/iomgr_posix.h",
+    "src/core/lib/iomgr/polling_entity.h",
     "src/core/lib/iomgr/pollset.h",
     "src/core/lib/iomgr/pollset_set.h",
     "src/core/lib/iomgr/pollset_set_windows.h",
     "src/core/lib/iomgr/pollset_windows.h",
-    "src/core/lib/iomgr/pops.h",
     "src/core/lib/iomgr/resolve_address.h",
     "src/core/lib/iomgr/sockaddr.h",
     "src/core/lib/iomgr/sockaddr_posix.h",
@@ -330,9 +330,9 @@ cc_library(
     "src/core/lib/iomgr/iomgr.c",
     "src/core/lib/iomgr/iomgr_posix.c",
     "src/core/lib/iomgr/iomgr_windows.c",
+    "src/core/lib/iomgr/polling_entity.c",
     "src/core/lib/iomgr/pollset_set_windows.c",
     "src/core/lib/iomgr/pollset_windows.c",
-    "src/core/lib/iomgr/pops.c",
     "src/core/lib/iomgr/resolve_address_posix.c",
     "src/core/lib/iomgr/resolve_address_windows.c",
     "src/core/lib/iomgr/sockaddr_utils.c",
@@ -556,11 +556,11 @@ cc_library(
     "src/core/lib/iomgr/iomgr.h",
     "src/core/lib/iomgr/iomgr_internal.h",
     "src/core/lib/iomgr/iomgr_posix.h",
+    "src/core/lib/iomgr/polling_entity.h",
     "src/core/lib/iomgr/pollset.h",
     "src/core/lib/iomgr/pollset_set.h",
     "src/core/lib/iomgr/pollset_set_windows.h",
     "src/core/lib/iomgr/pollset_windows.h",
-    "src/core/lib/iomgr/pops.h",
     "src/core/lib/iomgr/resolve_address.h",
     "src/core/lib/iomgr/sockaddr.h",
     "src/core/lib/iomgr/sockaddr_posix.h",
@@ -677,9 +677,9 @@ cc_library(
     "src/core/lib/iomgr/iomgr.c",
     "src/core/lib/iomgr/iomgr_posix.c",
     "src/core/lib/iomgr/iomgr_windows.c",
+    "src/core/lib/iomgr/polling_entity.c",
     "src/core/lib/iomgr/pollset_set_windows.c",
     "src/core/lib/iomgr/pollset_windows.c",
-    "src/core/lib/iomgr/pops.c",
     "src/core/lib/iomgr/resolve_address_posix.c",
     "src/core/lib/iomgr/resolve_address_windows.c",
     "src/core/lib/iomgr/sockaddr_utils.c",
@@ -1370,9 +1370,9 @@ objc_library(
     "src/core/lib/iomgr/iomgr.c",
     "src/core/lib/iomgr/iomgr_posix.c",
     "src/core/lib/iomgr/iomgr_windows.c",
+    "src/core/lib/iomgr/polling_entity.c",
     "src/core/lib/iomgr/pollset_set_windows.c",
     "src/core/lib/iomgr/pollset_windows.c",
-    "src/core/lib/iomgr/pops.c",
     "src/core/lib/iomgr/resolve_address_posix.c",
     "src/core/lib/iomgr/resolve_address_windows.c",
     "src/core/lib/iomgr/sockaddr_utils.c",
@@ -1575,11 +1575,11 @@ objc_library(
     "src/core/lib/iomgr/iomgr.h",
     "src/core/lib/iomgr/iomgr_internal.h",
     "src/core/lib/iomgr/iomgr_posix.h",
+    "src/core/lib/iomgr/polling_entity.h",
     "src/core/lib/iomgr/pollset.h",
     "src/core/lib/iomgr/pollset_set.h",
     "src/core/lib/iomgr/pollset_set_windows.h",
     "src/core/lib/iomgr/pollset_windows.h",
-    "src/core/lib/iomgr/pops.h",
     "src/core/lib/iomgr/resolve_address.h",
     "src/core/lib/iomgr/sockaddr.h",
     "src/core/lib/iomgr/sockaddr_posix.h",
diff --git a/Makefile b/Makefile
index 5156782e5e07239e725fa0a7ce4bb73f934bf29e..700c0221fb770600215b42ec2246b8fba3ec5dd1 100644
--- a/Makefile
+++ b/Makefile
@@ -2494,9 +2494,9 @@ LIBGRPC_SRC = \
     src/core/lib/iomgr/iomgr.c \
     src/core/lib/iomgr/iomgr_posix.c \
     src/core/lib/iomgr/iomgr_windows.c \
+    src/core/lib/iomgr/polling_entity.c \
     src/core/lib/iomgr/pollset_set_windows.c \
     src/core/lib/iomgr/pollset_windows.c \
-    src/core/lib/iomgr/pops.c \
     src/core/lib/iomgr/resolve_address_posix.c \
     src/core/lib/iomgr/resolve_address_windows.c \
     src/core/lib/iomgr/sockaddr_utils.c \
@@ -2849,9 +2849,9 @@ LIBGRPC_UNSECURE_SRC = \
     src/core/lib/iomgr/iomgr.c \
     src/core/lib/iomgr/iomgr_posix.c \
     src/core/lib/iomgr/iomgr_windows.c \
+    src/core/lib/iomgr/polling_entity.c \
     src/core/lib/iomgr/pollset_set_windows.c \
     src/core/lib/iomgr/pollset_windows.c \
-    src/core/lib/iomgr/pops.c \
     src/core/lib/iomgr/resolve_address_posix.c \
     src/core/lib/iomgr/resolve_address_windows.c \
     src/core/lib/iomgr/sockaddr_utils.c \
diff --git a/binding.gyp b/binding.gyp
index 90b50cbb80203b214751a08b9002cb6b590b0c43..e832023872d3351b707883409dd22463ae2d15d5 100644
--- a/binding.gyp
+++ b/binding.gyp
@@ -589,9 +589,9 @@
         'src/core/lib/iomgr/iomgr.c',
         'src/core/lib/iomgr/iomgr_posix.c',
         'src/core/lib/iomgr/iomgr_windows.c',
+        'src/core/lib/iomgr/polling_entity.c',
         'src/core/lib/iomgr/pollset_set_windows.c',
         'src/core/lib/iomgr/pollset_windows.c',
-        'src/core/lib/iomgr/pops.c',
         'src/core/lib/iomgr/resolve_address_posix.c',
         'src/core/lib/iomgr/resolve_address_windows.c',
         'src/core/lib/iomgr/sockaddr_utils.c',
diff --git a/build.yaml b/build.yaml
index b20df2a9e9fb6593919584001ae0fbd7b29a8396..2e2916a69bdc5b50304b0d04385f75d1bdfd1ec1 100644
--- a/build.yaml
+++ b/build.yaml
@@ -173,11 +173,11 @@ filegroups:
   - src/core/lib/iomgr/iomgr.h
   - src/core/lib/iomgr/iomgr_internal.h
   - src/core/lib/iomgr/iomgr_posix.h
+  - src/core/lib/iomgr/polling_entity.h
   - src/core/lib/iomgr/pollset.h
   - src/core/lib/iomgr/pollset_set.h
   - src/core/lib/iomgr/pollset_set_windows.h
   - src/core/lib/iomgr/pollset_windows.h
-  - src/core/lib/iomgr/pops.h
   - src/core/lib/iomgr/resolve_address.h
   - src/core/lib/iomgr/sockaddr.h
   - src/core/lib/iomgr/sockaddr_posix.h
@@ -248,9 +248,9 @@ filegroups:
   - src/core/lib/iomgr/iomgr.c
   - src/core/lib/iomgr/iomgr_posix.c
   - src/core/lib/iomgr/iomgr_windows.c
+  - src/core/lib/iomgr/polling_entity.c
   - src/core/lib/iomgr/pollset_set_windows.c
   - src/core/lib/iomgr/pollset_windows.c
-  - src/core/lib/iomgr/pops.c
   - src/core/lib/iomgr/resolve_address_posix.c
   - src/core/lib/iomgr/resolve_address_windows.c
   - src/core/lib/iomgr/sockaddr_utils.c
diff --git a/config.m4 b/config.m4
index 8d50b541613f3a205da27266cb04394ccb866eff..e2b6984ec992cc49f125a35ecbe096c3814401f7 100644
--- a/config.m4
+++ b/config.m4
@@ -108,9 +108,9 @@ if test "$PHP_GRPC" != "no"; then
     src/core/lib/iomgr/iomgr.c \
     src/core/lib/iomgr/iomgr_posix.c \
     src/core/lib/iomgr/iomgr_windows.c \
+    src/core/lib/iomgr/polling_entity.c \
     src/core/lib/iomgr/pollset_set_windows.c \
     src/core/lib/iomgr/pollset_windows.c \
-    src/core/lib/iomgr/pops.c \
     src/core/lib/iomgr/resolve_address_posix.c \
     src/core/lib/iomgr/resolve_address_windows.c \
     src/core/lib/iomgr/sockaddr_utils.c \
diff --git a/gRPC.podspec b/gRPC.podspec
index 6cf4a6fae5f36d8b0c6be2cdbf294b81597dc608..0a9d1dbad380c02553b7455b4d52b6affdada4af 100644
--- a/gRPC.podspec
+++ b/gRPC.podspec
@@ -189,11 +189,11 @@ Pod::Spec.new do |s|
                       'src/core/lib/iomgr/iomgr.h',
                       'src/core/lib/iomgr/iomgr_internal.h',
                       'src/core/lib/iomgr/iomgr_posix.h',
+                      'src/core/lib/iomgr/polling_entity.h',
                       'src/core/lib/iomgr/pollset.h',
                       'src/core/lib/iomgr/pollset_set.h',
                       'src/core/lib/iomgr/pollset_set_windows.h',
                       'src/core/lib/iomgr/pollset_windows.h',
-                      'src/core/lib/iomgr/pops.h',
                       'src/core/lib/iomgr/resolve_address.h',
                       'src/core/lib/iomgr/sockaddr.h',
                       'src/core/lib/iomgr/sockaddr_posix.h',
@@ -367,9 +367,9 @@ Pod::Spec.new do |s|
                       'src/core/lib/iomgr/iomgr.c',
                       'src/core/lib/iomgr/iomgr_posix.c',
                       'src/core/lib/iomgr/iomgr_windows.c',
+                      'src/core/lib/iomgr/polling_entity.c',
                       'src/core/lib/iomgr/pollset_set_windows.c',
                       'src/core/lib/iomgr/pollset_windows.c',
-                      'src/core/lib/iomgr/pops.c',
                       'src/core/lib/iomgr/resolve_address_posix.c',
                       'src/core/lib/iomgr/resolve_address_windows.c',
                       'src/core/lib/iomgr/sockaddr_utils.c',
@@ -556,11 +556,11 @@ Pod::Spec.new do |s|
                               'src/core/lib/iomgr/iomgr.h',
                               'src/core/lib/iomgr/iomgr_internal.h',
                               'src/core/lib/iomgr/iomgr_posix.h',
+                              'src/core/lib/iomgr/polling_entity.h',
                               'src/core/lib/iomgr/pollset.h',
                               'src/core/lib/iomgr/pollset_set.h',
                               'src/core/lib/iomgr/pollset_set_windows.h',
                               'src/core/lib/iomgr/pollset_windows.h',
-                              'src/core/lib/iomgr/pops.h',
                               'src/core/lib/iomgr/resolve_address.h',
                               'src/core/lib/iomgr/sockaddr.h',
                               'src/core/lib/iomgr/sockaddr_posix.h',
diff --git a/grpc.gemspec b/grpc.gemspec
index 9dcd87c4c2243cbb55347b47efd888e5438feff6..c006aaa6fe30a60bdfb5b2287d0bb03c0e2a8d72 100755
--- a/grpc.gemspec
+++ b/grpc.gemspec
@@ -198,11 +198,11 @@ Gem::Specification.new do |s|
   s.files += %w( src/core/lib/iomgr/iomgr.h )
   s.files += %w( src/core/lib/iomgr/iomgr_internal.h )
   s.files += %w( src/core/lib/iomgr/iomgr_posix.h )
+  s.files += %w( src/core/lib/iomgr/polling_entity.h )
   s.files += %w( src/core/lib/iomgr/pollset.h )
   s.files += %w( src/core/lib/iomgr/pollset_set.h )
   s.files += %w( src/core/lib/iomgr/pollset_set_windows.h )
   s.files += %w( src/core/lib/iomgr/pollset_windows.h )
-  s.files += %w( src/core/lib/iomgr/pops.h )
   s.files += %w( src/core/lib/iomgr/resolve_address.h )
   s.files += %w( src/core/lib/iomgr/sockaddr.h )
   s.files += %w( src/core/lib/iomgr/sockaddr_posix.h )
@@ -346,9 +346,9 @@ Gem::Specification.new do |s|
   s.files += %w( src/core/lib/iomgr/iomgr.c )
   s.files += %w( src/core/lib/iomgr/iomgr_posix.c )
   s.files += %w( src/core/lib/iomgr/iomgr_windows.c )
+  s.files += %w( src/core/lib/iomgr/polling_entity.c )
   s.files += %w( src/core/lib/iomgr/pollset_set_windows.c )
   s.files += %w( src/core/lib/iomgr/pollset_windows.c )
-  s.files += %w( src/core/lib/iomgr/pops.c )
   s.files += %w( src/core/lib/iomgr/resolve_address_posix.c )
   s.files += %w( src/core/lib/iomgr/resolve_address_windows.c )
   s.files += %w( src/core/lib/iomgr/sockaddr_utils.c )
diff --git a/package.xml b/package.xml
index f9dd18c14856605a0952568901f3f25a8a6a278a..b4ee9a82146fb68ac3577c646f5b99b2fa711e36 100644
--- a/package.xml
+++ b/package.xml
@@ -205,11 +205,11 @@
     <file baseinstalldir="/" name="src/core/lib/iomgr/iomgr.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/iomgr/iomgr_internal.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/iomgr/iomgr_posix.h" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/polling_entity.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/iomgr/pollset.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/iomgr/pollset_set.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/iomgr/pollset_set_windows.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/iomgr/pollset_windows.h" role="src" />
-    <file baseinstalldir="/" name="src/core/lib/iomgr/pops.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/iomgr/resolve_address.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/iomgr/sockaddr.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/iomgr/sockaddr_posix.h" role="src" />
@@ -353,9 +353,9 @@
     <file baseinstalldir="/" name="src/core/lib/iomgr/iomgr.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/iomgr/iomgr_posix.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/iomgr/iomgr_windows.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/polling_entity.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/iomgr/pollset_set_windows.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/iomgr/pollset_windows.c" role="src" />
-    <file baseinstalldir="/" name="src/core/lib/iomgr/pops.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/iomgr/resolve_address_posix.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/iomgr/resolve_address_windows.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/iomgr/sockaddr_utils.c" role="src" />
diff --git a/src/core/ext/client_config/client_channel.c b/src/core/ext/client_config/client_channel.c
index 473fb33b12fc7797e5131dc590990a758acae39d..835a8219e74f7e631ec07d82dcfe4b3565c1f010 100644
--- a/src/core/ext/client_config/client_channel.c
+++ b/src/core/ext/client_config/client_channel.c
@@ -377,9 +377,9 @@ static int cc_pick_subchannel(grpc_exec_ctx *exec_ctx, void *elemp,
     int r;
     GRPC_LB_POLICY_REF(lb_policy, "cc_pick_subchannel");
     gpr_mu_unlock(&chand->mu_config);
-    r = grpc_lb_policy_pick(exec_ctx, lb_policy, calld->pops, initial_metadata,
-                            initial_metadata_flags, connected_subchannel,
-                            on_ready);
+    r = grpc_lb_policy_pick(exec_ctx, lb_policy, calld->pollent,
+                            initial_metadata, initial_metadata_flags,
+                            connected_subchannel, on_ready);
     GRPC_LB_POLICY_UNREF(exec_ctx, lb_policy, "cc_pick_subchannel");
     return r;
   }
@@ -463,9 +463,9 @@ static void destroy_channel_elem(grpc_exec_ctx *exec_ctx,
 
 static void cc_set_pollset_or_pollset_set(grpc_exec_ctx *exec_ctx,
                                           grpc_call_element *elem,
-                                          grpc_pops *pops) {
+                                          grpc_polling_entity *pollent) {
   call_data *calld = elem->call_data;
-  calld->pops = pops;
+  calld->pollent = pollent;
 }
 
 const grpc_channel_filter grpc_client_channel_filter = {
diff --git a/src/core/ext/client_config/lb_policy.c b/src/core/ext/client_config/lb_policy.c
index 8bf54d2abc6176a889a54fd009628bcc76248cd8..20535398d6995364b8d265dbd2e695ec5f1a7130 100644
--- a/src/core/ext/client_config/lb_policy.c
+++ b/src/core/ext/client_config/lb_policy.c
@@ -99,11 +99,12 @@ void grpc_lb_policy_weak_unref(grpc_exec_ctx *exec_ctx,
 }
 
 int grpc_lb_policy_pick(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy,
-                        grpc_pops *pops, grpc_metadata_batch *initial_metadata,
+                        grpc_polling_entity *pollent,
+                        grpc_metadata_batch *initial_metadata,
                         uint32_t initial_metadata_flags,
                         grpc_connected_subchannel **target,
                         grpc_closure *on_complete) {
-  return policy->vtable->pick(exec_ctx, policy, pops, initial_metadata,
+  return policy->vtable->pick(exec_ctx, policy, pollent, initial_metadata,
                               initial_metadata_flags, target, on_complete);
 }
 
diff --git a/src/core/ext/client_config/lb_policy.h b/src/core/ext/client_config/lb_policy.h
index e4ae016e4aaf7f7bf81a81a4b268721c9b0cb23d..56fa11198b7c931eec1c102ee49b93cfb7f26893 100644
--- a/src/core/ext/client_config/lb_policy.h
+++ b/src/core/ext/client_config/lb_policy.h
@@ -35,7 +35,7 @@
 #define GRPC_CORE_EXT_CLIENT_CONFIG_LB_POLICY_H
 
 #include "src/core/ext/client_config/subchannel.h"
-#include "src/core/lib/iomgr/pops.h"
+#include "src/core/lib/iomgr/polling_entity.h"
 #include "src/core/lib/transport/connectivity_state.h"
 
 /** A load balancing policy: specified by a vtable and a struct (which
@@ -59,7 +59,8 @@ struct grpc_lb_policy_vtable {
   void (*shutdown)(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy);
 
   /** implement grpc_lb_policy_pick */
-  int (*pick)(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, grpc_pops *pops,
+  int (*pick)(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy,
+              grpc_polling_entity *pollent,
               grpc_metadata_batch *initial_metadata,
               uint32_t initial_metadata_flags,
               grpc_connected_subchannel **target, grpc_closure *on_complete);
@@ -125,7 +126,8 @@ void grpc_lb_policy_init(grpc_lb_policy *policy,
     \a target.
     Picking can be asynchronous. Any IO should be done under \a pollset. */
 int grpc_lb_policy_pick(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy,
-                        grpc_pops *pops, grpc_metadata_batch *initial_metadata,
+                        grpc_polling_entity *pollent,
+                        grpc_metadata_batch *initial_metadata,
                         uint32_t initial_metadata_flags,
                         grpc_connected_subchannel **target,
                         grpc_closure *on_complete);
diff --git a/src/core/ext/client_config/subchannel.c b/src/core/ext/client_config/subchannel.c
index a67ec72bd16899562d3ffcbef0fe6be6987135d5..01b13abae4e3309536e3ad2b42f25df5edcf2ab0 100644
--- a/src/core/ext/client_config/subchannel.c
+++ b/src/core/ext/client_config/subchannel.c
@@ -682,7 +682,8 @@ grpc_connected_subchannel *grpc_subchannel_get_connected_subchannel(
 }
 
 grpc_subchannel_call *grpc_connected_subchannel_create_call(
-    grpc_exec_ctx *exec_ctx, grpc_connected_subchannel *con, grpc_pops *pops) {
+    grpc_exec_ctx *exec_ctx, grpc_connected_subchannel *con,
+    grpc_polling_entity *pollent) {
   grpc_channel_stack *chanstk = CHANNEL_STACK_FROM_CONNECTION(con);
   grpc_subchannel_call *call =
       gpr_malloc(sizeof(grpc_subchannel_call) + chanstk->call_stack_size);
@@ -691,7 +692,7 @@ grpc_subchannel_call *grpc_connected_subchannel_create_call(
   GRPC_CONNECTED_SUBCHANNEL_REF(con, "subchannel_call");
   grpc_call_stack_init(exec_ctx, chanstk, 1, subchannel_call_destroy, call,
                        NULL, NULL, callstk);
-  grpc_call_stack_set_pollset_or_pollset_set(exec_ctx, callstk, pops);
+  grpc_call_stack_set_pollset_or_pollset_set(exec_ctx, callstk, pollent);
   return call;
 }
 
diff --git a/src/core/ext/client_config/subchannel.h b/src/core/ext/client_config/subchannel.h
index fe9ece08f184f7a3ace65758c28b6f240f25a88f..525f854a4441f2e6581756740ae561cdb91ffac9 100644
--- a/src/core/ext/client_config/subchannel.h
+++ b/src/core/ext/client_config/subchannel.h
@@ -36,7 +36,7 @@
 
 #include "src/core/ext/client_config/connector.h"
 #include "src/core/lib/channel/channel_stack.h"
-#include "src/core/lib/iomgr/pops.h"
+#include "src/core/lib/iomgr/polling_entity.h"
 #include "src/core/lib/transport/connectivity_state.h"
 
 /** A (sub-)channel that knows how to connect to exactly one target
@@ -110,7 +110,7 @@ void grpc_subchannel_call_unref(grpc_exec_ctx *exec_ctx,
 /** construct a subchannel call */
 grpc_subchannel_call *grpc_connected_subchannel_create_call(
     grpc_exec_ctx *exec_ctx, grpc_connected_subchannel *connected_subchannel,
-    grpc_pops *pops);
+    grpc_polling_entity *pollent);
 
 /** process a transport level op */
 void grpc_connected_subchannel_process_transport_op(
diff --git a/src/core/ext/client_config/subchannel_call_holder.c b/src/core/ext/client_config/subchannel_call_holder.c
index e4dbbb0a36f66df6958aadcd8c446a259b86c58c..3df1f254d66998bf775adff3449c8c5532cf8bbc 100644
--- a/src/core/ext/client_config/subchannel_call_holder.c
+++ b/src/core/ext/client_config/subchannel_call_holder.c
@@ -68,7 +68,7 @@ void grpc_subchannel_call_holder_init(
   holder->waiting_ops_capacity = 0;
   holder->creation_phase = GRPC_SUBCHANNEL_CALL_HOLDER_NOT_CREATING;
   holder->owning_call = owning_call;
-  holder->pops = NULL;
+  holder->pollent = NULL;
 }
 
 void grpc_subchannel_call_holder_destroy(grpc_exec_ctx *exec_ctx,
@@ -158,7 +158,7 @@ retry:
     gpr_atm_rel_store(
         &holder->subchannel_call,
         (gpr_atm)(uintptr_t)grpc_connected_subchannel_create_call(
-            exec_ctx, holder->connected_subchannel, holder->pops));
+            exec_ctx, holder->connected_subchannel, holder->pollent));
     retry_waiting_locked(exec_ctx, holder);
     goto retry;
   }
@@ -184,7 +184,7 @@ static void subchannel_ready(grpc_exec_ctx *exec_ctx, void *arg, bool success) {
     gpr_atm_rel_store(
         &holder->subchannel_call,
         (gpr_atm)(uintptr_t)grpc_connected_subchannel_create_call(
-            exec_ctx, holder->connected_subchannel, holder->pops));
+            exec_ctx, holder->connected_subchannel, holder->pollent));
     retry_waiting_locked(exec_ctx, holder);
   }
   gpr_mu_unlock(&holder->mu);
diff --git a/src/core/ext/client_config/subchannel_call_holder.h b/src/core/ext/client_config/subchannel_call_holder.h
index 81ac5f5b97211eb4516d0b3ad4ce84db96b931fc..8d2deb02f3888621b5df6c5ecd20bde8981616a6 100644
--- a/src/core/ext/client_config/subchannel_call_holder.h
+++ b/src/core/ext/client_config/subchannel_call_holder.h
@@ -35,7 +35,7 @@
 #define GRPC_CORE_EXT_CLIENT_CONFIG_SUBCHANNEL_CALL_HOLDER_H
 
 #include "src/core/ext/client_config/subchannel.h"
-#include "src/core/lib/iomgr/pops.h"
+#include "src/core/lib/iomgr/polling_entity.h"
 
 /** Pick a subchannel for grpc_subchannel_call_holder;
     Return 1 if subchannel is available immediately (in which case on_ready
@@ -72,7 +72,7 @@ typedef struct grpc_subchannel_call_holder {
 
   grpc_subchannel_call_holder_creation_phase creation_phase;
   grpc_connected_subchannel *connected_subchannel;
-  grpc_pops *pops;
+  grpc_polling_entity *pollent;
 
   grpc_transport_stream_op *waiting_ops;
   size_t waiting_ops_count;
diff --git a/src/core/ext/lb_policy/pick_first/pick_first.c b/src/core/ext/lb_policy/pick_first/pick_first.c
index 406525d82961d2fe7d35b99c6408581be5ca874d..d428d41a623f8959c74d3f9b30edc0d3de780060 100644
--- a/src/core/ext/lb_policy/pick_first/pick_first.c
+++ b/src/core/ext/lb_policy/pick_first/pick_first.c
@@ -39,7 +39,7 @@
 
 typedef struct pending_pick {
   struct pending_pick *next;
-  grpc_pops *pops;
+  grpc_polling_entity *pollent;
   uint32_t initial_metadata_flags;
   grpc_connected_subchannel **target;
   grpc_closure *on_complete;
@@ -118,7 +118,7 @@ static void pf_shutdown(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol) {
   while (pp != NULL) {
     pending_pick *next = pp->next;
     *pp->target = NULL;
-    grpc_pops_del_to_pollset_set(exec_ctx, pp->pops,
+    grpc_pops_del_to_pollset_set(exec_ctx, pp->pollent,
                                  p->base.interested_parties);
     grpc_exec_ctx_enqueue(exec_ctx, pp->on_complete, true, NULL);
     gpr_free(pp);
@@ -136,7 +136,7 @@ static void pf_cancel_pick(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol,
   while (pp != NULL) {
     pending_pick *next = pp->next;
     if (pp->target == target) {
-      grpc_pops_del_to_pollset_set(exec_ctx, pp->pops,
+      grpc_pops_del_to_pollset_set(exec_ctx, pp->pollent,
                                    p->base.interested_parties);
       *target = NULL;
       grpc_exec_ctx_enqueue(exec_ctx, pp->on_complete, false, NULL);
@@ -162,7 +162,7 @@ static void pf_cancel_picks(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol,
     pending_pick *next = pp->next;
     if ((pp->initial_metadata_flags & initial_metadata_flags_mask) ==
         initial_metadata_flags_eq) {
-      grpc_pops_del_to_pollset_set(exec_ctx, pp->pops,
+      grpc_pops_del_to_pollset_set(exec_ctx, pp->pollent,
                                    p->base.interested_parties);
       grpc_exec_ctx_enqueue(exec_ctx, pp->on_complete, false, NULL);
       gpr_free(pp);
@@ -196,7 +196,8 @@ static void pf_exit_idle(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol) {
 }
 
 static int pf_pick(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol,
-                   grpc_pops *pops, grpc_metadata_batch *initial_metadata,
+                   grpc_polling_entity *pollent,
+                   grpc_metadata_batch *initial_metadata,
                    uint32_t initial_metadata_flags,
                    grpc_connected_subchannel **target,
                    grpc_closure *on_complete) {
@@ -221,10 +222,10 @@ static int pf_pick(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol,
     if (!p->started_picking) {
       start_picking(exec_ctx, p);
     }
-    grpc_pops_add_to_pollset_set(exec_ctx, pops, p->base.interested_parties);
+    grpc_pops_add_to_pollset_set(exec_ctx, pollent, p->base.interested_parties);
     pp = gpr_malloc(sizeof(*pp));
     pp->next = p->pending_picks;
-    pp->pops = pops;
+    pp->pollent = pollent;
     pp->target = target;
     pp->initial_metadata_flags = initial_metadata_flags;
     pp->on_complete = on_complete;
@@ -304,7 +305,7 @@ static void pf_connectivity_changed(grpc_exec_ctx *exec_ctx, void *arg,
         while ((pp = p->pending_picks)) {
           p->pending_picks = pp->next;
           *pp->target = selected;
-          grpc_pops_del_to_pollset_set(exec_ctx, pp->pops,
+          grpc_pops_del_to_pollset_set(exec_ctx, pp->pollent,
                                        p->base.interested_parties);
           grpc_exec_ctx_enqueue(exec_ctx, pp->on_complete, true, NULL);
           gpr_free(pp);
diff --git a/src/core/ext/lb_policy/round_robin/round_robin.c b/src/core/ext/lb_policy/round_robin/round_robin.c
index 4c52a2f099bd08fb8b4a5fd6e15a9ee3b1ec0847..e706a8ddd90c1bc2f73c6eb0e6eb8b039a0949b5 100644
--- a/src/core/ext/lb_policy/round_robin/round_robin.c
+++ b/src/core/ext/lb_policy/round_robin/round_robin.c
@@ -48,7 +48,7 @@ int grpc_lb_round_robin_trace = 0;
  * Once a pick is available, \a target is updated and \a on_complete called. */
 typedef struct pending_pick {
   struct pending_pick *next;
-  grpc_pops *pops;
+  grpc_polling_entity *pollent;
   uint32_t initial_metadata_flags;
   grpc_connected_subchannel **target;
   grpc_closure *on_complete;
@@ -262,7 +262,7 @@ static void rr_cancel_pick(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol,
   while (pp != NULL) {
     pending_pick *next = pp->next;
     if (pp->target == target) {
-      grpc_pops_del_to_pollset_set(exec_ctx, pp->pops,
+      grpc_pops_del_to_pollset_set(exec_ctx, pp->pollent,
                                    p->base.interested_parties);
       *target = NULL;
       grpc_exec_ctx_enqueue(exec_ctx, pp->on_complete, false, NULL);
@@ -288,7 +288,7 @@ static void rr_cancel_picks(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol,
     pending_pick *next = pp->next;
     if ((pp->initial_metadata_flags & initial_metadata_flags_mask) ==
         initial_metadata_flags_eq) {
-      grpc_pops_del_to_pollset_set(exec_ctx, pp->pops,
+      grpc_pops_del_to_pollset_set(exec_ctx, pp->pollent,
                                    p->base.interested_parties);
       *pp->target = NULL;
       grpc_exec_ctx_enqueue(exec_ctx, pp->on_complete, false, NULL);
@@ -331,7 +331,8 @@ static void rr_exit_idle(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol) {
 }
 
 static int rr_pick(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol,
-                   grpc_pops *pops, grpc_metadata_batch *initial_metadata,
+                   grpc_polling_entity *pollent,
+                   grpc_metadata_batch *initial_metadata,
                    uint32_t initial_metadata_flags,
                    grpc_connected_subchannel **target,
                    grpc_closure *on_complete) {
@@ -354,10 +355,10 @@ static int rr_pick(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol,
     if (!p->started_picking) {
       start_picking(exec_ctx, p);
     }
-    grpc_pops_add_to_pollset_set(exec_ctx, pops, p->base.interested_parties);
+    grpc_pops_add_to_pollset_set(exec_ctx, pollent, p->base.interested_parties);
     pp = gpr_malloc(sizeof(*pp));
     pp->next = p->pending_picks;
-    pp->pops = pops;
+    pp->pollent = pollent;
     pp->target = target;
     pp->on_complete = on_complete;
     pp->initial_metadata_flags = initial_metadata_flags;
@@ -406,7 +407,7 @@ static void rr_connectivity_changed(grpc_exec_ctx *exec_ctx, void *arg,
                     "[RR CONN CHANGED] TARGET <-- SUBCHANNEL %p (NODE %p)",
                     selected->subchannel, selected);
           }
-          grpc_pops_del_to_pollset_set(exec_ctx, pp->pops,
+          grpc_pops_del_to_pollset_set(exec_ctx, pp->pollent,
                                        p->base.interested_parties);
           grpc_exec_ctx_enqueue(exec_ctx, pp->on_complete, true, NULL);
           gpr_free(pp);
diff --git a/src/core/lib/channel/channel_stack.c b/src/core/lib/channel/channel_stack.c
index 81135d2fc02c8d2d7ee6c4da0e277b76c1f60034..0faade2d241978830c1580d8cd653082fe1987d7 100644
--- a/src/core/lib/channel/channel_stack.c
+++ b/src/core/lib/channel/channel_stack.c
@@ -191,7 +191,7 @@ void grpc_call_stack_init(grpc_exec_ctx *exec_ctx,
 
 void grpc_call_stack_set_pollset_or_pollset_set(grpc_exec_ctx *exec_ctx,
                                                 grpc_call_stack *call_stack,
-                                                grpc_pops *pops) {
+                                                grpc_polling_entity *pollent) {
   size_t count = call_stack->count;
   grpc_call_element *call_elems;
   char *user_data;
@@ -204,15 +204,15 @@ void grpc_call_stack_set_pollset_or_pollset_set(grpc_exec_ctx *exec_ctx,
   /* init per-filter data */
   for (i = 0; i < count; i++) {
     call_elems[i].filter->set_pollset_or_pollset_set(exec_ctx, &call_elems[i],
-                                                     pops);
+                                                     pollent);
     user_data +=
         ROUND_UP_TO_ALIGNMENT_SIZE(call_elems[i].filter->sizeof_call_data);
   }
 }
 
-void grpc_call_stack_ignore_set_pollset_or_pollset_set(grpc_exec_ctx *exec_ctx,
-                                                       grpc_call_element *elem,
-                                                       grpc_pops *pops) {}
+void grpc_call_stack_ignore_set_pollset_or_pollset_set(
+    grpc_exec_ctx *exec_ctx, grpc_call_element *elem,
+    grpc_polling_entity *pollent) {}
 
 void grpc_call_stack_destroy(grpc_exec_ctx *exec_ctx, grpc_call_stack *stack,
                              void *and_free_memory) {
diff --git a/src/core/lib/channel/channel_stack.h b/src/core/lib/channel/channel_stack.h
index 7be86f788c7aa892b7baf6f813f7db33b904d127..abc798bb5661528dec6d10ebcf976349cd3520ed 100644
--- a/src/core/lib/channel/channel_stack.h
+++ b/src/core/lib/channel/channel_stack.h
@@ -46,7 +46,7 @@
 #include <grpc/grpc.h>
 #include <grpc/support/log.h>
 #include "src/core/lib/debug/trace.h"
-#include "src/core/lib/iomgr/pops.h"
+#include "src/core/lib/iomgr/polling_entity.h"
 #include "src/core/lib/transport/transport.h"
 
 typedef struct grpc_channel_element grpc_channel_element;
@@ -103,7 +103,8 @@ typedef struct {
   void (*init_call_elem)(grpc_exec_ctx *exec_ctx, grpc_call_element *elem,
                          grpc_call_element_args *args);
   void (*set_pollset_or_pollset_set)(grpc_exec_ctx *exec_ctx,
-                                     grpc_call_element *elem, grpc_pops *pops);
+                                     grpc_call_element *elem,
+                                     grpc_polling_entity *pollent);
   /* Destroy per call data.
      The filter does not need to do any chaining.
      The bottom filter of a stack will be passed a non-NULL pointer to
@@ -206,7 +207,7 @@ void grpc_call_stack_init(grpc_exec_ctx *exec_ctx,
  * op is started */
 void grpc_call_stack_set_pollset_or_pollset_set(grpc_exec_ctx *exec_ctx,
                                                 grpc_call_stack *call_stack,
-                                                grpc_pops *pops);
+                                                grpc_polling_entity *pollent);
 
 #ifdef GRPC_STREAM_REFCOUNT_DEBUG
 #define GRPC_CALL_STACK_REF(call_stack, reason) \
@@ -234,9 +235,9 @@ void grpc_call_stack_destroy(grpc_exec_ctx *exec_ctx, grpc_call_stack *stack,
 
 /* Ignore set pollset{_set} - used by filters if they don't care about pollsets
  * at all. Does nothing. */
-void grpc_call_stack_ignore_set_pollset_or_pollset_set(grpc_exec_ctx *exec_ctx,
-                                                       grpc_call_element *elem,
-                                                       grpc_pops *pops);
+void grpc_call_stack_ignore_set_pollset_or_pollset_set(
+    grpc_exec_ctx *exec_ctx, grpc_call_element *elem,
+    grpc_polling_entity *pollent);
 /* Call the next operation in a call stack */
 void grpc_call_next_op(grpc_exec_ctx *exec_ctx, grpc_call_element *elem,
                        grpc_transport_stream_op *op);
diff --git a/src/core/lib/channel/connected_channel.c b/src/core/lib/channel/connected_channel.c
index 6e857ae61addbfcb4fc4241dfaeaeb18395f220f..2b2ebb9ddb79eb79b92003ab722d0a2ca8472fe0 100644
--- a/src/core/lib/channel/connected_channel.c
+++ b/src/core/lib/channel/connected_channel.c
@@ -95,11 +95,11 @@ static void init_call_elem(grpc_exec_ctx *exec_ctx, grpc_call_element *elem,
 
 static void set_pollset_or_pollset_set(grpc_exec_ctx *exec_ctx,
                                        grpc_call_element *elem,
-                                       grpc_pops *pops) {
+                                       grpc_polling_entity *pollent) {
   call_data *calld = elem->call_data;
   channel_data *chand = elem->channel_data;
   grpc_transport_set_pops(exec_ctx, chand->transport,
-                          TRANSPORT_STREAM_FROM_CALL_DATA(calld), pops);
+                          TRANSPORT_STREAM_FROM_CALL_DATA(calld), pollent);
 }
 
 /* Destructor for call_data */
diff --git a/src/core/lib/http/httpcli.c b/src/core/lib/http/httpcli.c
index d48e954479600da19d812a88865b1b20914543f9..5e7c3267f2e3f1852ac8346f1519ba207862e15d 100644
--- a/src/core/lib/http/httpcli.c
+++ b/src/core/lib/http/httpcli.c
@@ -62,7 +62,7 @@ typedef struct {
   grpc_httpcli_response_cb on_response;
   void *user_data;
   grpc_httpcli_context *context;
-  grpc_pops *pops;
+  grpc_polling_entity *pollent;
   grpc_iomgr_object iomgr_obj;
   gpr_slice_buffer incoming;
   gpr_slice_buffer outgoing;
@@ -97,7 +97,8 @@ static void next_address(grpc_exec_ctx *exec_ctx, internal_request *req);
 
 static void finish(grpc_exec_ctx *exec_ctx, internal_request *req,
                    int success) {
-  grpc_pops_del_to_pollset_set(exec_ctx, req->pops, req->context->pollset_set);
+  grpc_pops_del_to_pollset_set(exec_ctx, req->pollent,
+                               req->context->pollset_set);
   req->on_response(exec_ctx, req->user_data,
                    success ? &req->parser.http.response : NULL);
   grpc_http_parser_destroy(&req->parser);
@@ -220,10 +221,10 @@ static void on_resolved(grpc_exec_ctx *exec_ctx, void *arg,
 }
 
 static void internal_request_begin(
-    grpc_exec_ctx *exec_ctx, grpc_httpcli_context *context, grpc_pops *pops,
-    const grpc_httpcli_request *request, gpr_timespec deadline,
-    grpc_httpcli_response_cb on_response, void *user_data, const char *name,
-    gpr_slice request_text) {
+    grpc_exec_ctx *exec_ctx, grpc_httpcli_context *context,
+    grpc_polling_entity *pollent, const grpc_httpcli_request *request,
+    gpr_timespec deadline, grpc_httpcli_response_cb on_response,
+    void *user_data, const char *name, gpr_slice request_text) {
   internal_request *req = gpr_malloc(sizeof(internal_request));
   memset(req, 0, sizeof(*req));
   req->request_text = request_text;
@@ -234,7 +235,7 @@ static void internal_request_begin(
   req->handshaker =
       request->handshaker ? request->handshaker : &grpc_httpcli_plaintext;
   req->context = context;
-  req->pops = pops;
+  req->pollent = pollent;
   grpc_closure_init(&req->on_read, on_read, req);
   grpc_closure_init(&req->done_write, done_write, req);
   gpr_slice_buffer_init(&req->incoming);
@@ -243,14 +244,16 @@ static void internal_request_begin(
   req->host = gpr_strdup(request->host);
   req->ssl_host_override = gpr_strdup(request->ssl_host_override);
 
-  GPR_ASSERT(pops);
-  grpc_pops_add_to_pollset_set(exec_ctx, req->pops, req->context->pollset_set);
+  GPR_ASSERT(pollent);
+  grpc_pops_add_to_pollset_set(exec_ctx, req->pollent,
+                               req->context->pollset_set);
   grpc_resolve_address(exec_ctx, request->host, req->handshaker->default_port,
                        on_resolved, req);
 }
 
 void grpc_httpcli_get(grpc_exec_ctx *exec_ctx, grpc_httpcli_context *context,
-                      grpc_pops *pops, const grpc_httpcli_request *request,
+                      grpc_polling_entity *pollent,
+                      const grpc_httpcli_request *request,
                       gpr_timespec deadline,
                       grpc_httpcli_response_cb on_response, void *user_data) {
   char *name;
@@ -259,14 +262,15 @@ void grpc_httpcli_get(grpc_exec_ctx *exec_ctx, grpc_httpcli_context *context,
     return;
   }
   gpr_asprintf(&name, "HTTP:GET:%s:%s", request->host, request->http.path);
-  internal_request_begin(exec_ctx, context, pops, request, deadline,
+  internal_request_begin(exec_ctx, context, pollent, request, deadline,
                          on_response, user_data, name,
                          grpc_httpcli_format_get_request(request));
   gpr_free(name);
 }
 
 void grpc_httpcli_post(grpc_exec_ctx *exec_ctx, grpc_httpcli_context *context,
-                       grpc_pops *pops, const grpc_httpcli_request *request,
+                       grpc_polling_entity *pollent,
+                       const grpc_httpcli_request *request,
                        const char *body_bytes, size_t body_size,
                        gpr_timespec deadline,
                        grpc_httpcli_response_cb on_response, void *user_data) {
@@ -278,8 +282,8 @@ void grpc_httpcli_post(grpc_exec_ctx *exec_ctx, grpc_httpcli_context *context,
   }
   gpr_asprintf(&name, "HTTP:POST:%s:%s", request->host, request->http.path);
   internal_request_begin(
-      exec_ctx, context, pops, request, deadline, on_response, user_data, name,
-      grpc_httpcli_format_post_request(request, body_bytes, body_size));
+      exec_ctx, context, pollent, request, deadline, on_response, user_data,
+      name, grpc_httpcli_format_post_request(request, body_bytes, body_size));
   gpr_free(name);
 }
 
diff --git a/src/core/lib/http/httpcli.h b/src/core/lib/http/httpcli.h
index 1166cfeea74b90cb2819a4806f10857ae43e7a60..7e7784f1ab8976f986bec8544f085dbf47fb05e0 100644
--- a/src/core/lib/http/httpcli.h
+++ b/src/core/lib/http/httpcli.h
@@ -41,8 +41,8 @@
 #include "src/core/lib/http/parser.h"
 #include "src/core/lib/iomgr/endpoint.h"
 #include "src/core/lib/iomgr/iomgr_internal.h"
+#include "src/core/lib/iomgr/polling_entity.h"
 #include "src/core/lib/iomgr/pollset_set.h"
-#include "src/core/lib/iomgr/pops.h"
 
 /* User agent this library reports */
 #define GRPC_HTTPCLI_USER_AGENT "grpc-httpcli/0.0"
@@ -101,7 +101,8 @@ void grpc_httpcli_context_destroy(grpc_httpcli_context *context);
    'on_response' is a callback to report results to (and 'user_data' is a user
      supplied pointer to pass to said call) */
 void grpc_httpcli_get(grpc_exec_ctx *exec_ctx, grpc_httpcli_context *context,
-                      grpc_pops *pops, const grpc_httpcli_request *request,
+                      grpc_polling_entity *pollent,
+                      const grpc_httpcli_request *request,
                       gpr_timespec deadline,
                       grpc_httpcli_response_cb on_response, void *user_data);
 
@@ -121,7 +122,8 @@ void grpc_httpcli_get(grpc_exec_ctx *exec_ctx, grpc_httpcli_context *context,
      supplied pointer to pass to said call)
    Does not support ?var1=val1&var2=val2 in the path. */
 void grpc_httpcli_post(grpc_exec_ctx *exec_ctx, grpc_httpcli_context *context,
-                       grpc_pops *pops, const grpc_httpcli_request *request,
+                       grpc_polling_entity *pollent,
+                       const grpc_httpcli_request *request,
                        const char *body_bytes, size_t body_size,
                        gpr_timespec deadline,
                        grpc_httpcli_response_cb on_response, void *user_data);
diff --git a/src/core/lib/iomgr/polling_entity.c b/src/core/lib/iomgr/polling_entity.c
new file mode 100644
index 0000000000000000000000000000000000000000..effe1a33ee7d306b3423d4572d96ebbc6a09766a
--- /dev/null
+++ b/src/core/lib/iomgr/polling_entity.c
@@ -0,0 +1,102 @@
+/*
+ *
+ * Copyright 2016, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <grpc/support/alloc.h>
+#include <grpc/support/log.h>
+
+#include "src/core/lib/iomgr/polling_entity.h"
+
+grpc_polling_entity grpc_pops_create_from_pollset_set(
+    grpc_pollset_set *pollset_set) {
+  grpc_polling_entity pollent;
+  pollent.pollent.pollset_set = pollset_set;
+  pollent.tag = POPS_POLLSET_SET;
+  return pollent;
+}
+
+grpc_polling_entity grpc_pops_create_from_pollset(grpc_pollset *pollset) {
+  grpc_polling_entity pollent;
+  pollent.pollent.pollset = pollset;
+  pollent.tag = POPS_POLLSET;
+  return pollent;
+}
+
+grpc_pollset *grpc_pops_pollset(grpc_polling_entity *pollent) {
+  if (pollent->tag == POPS_POLLSET) {
+    return pollent->pollent.pollset;
+  }
+  return NULL;
+}
+
+grpc_pollset_set *grpc_pops_pollset_set(grpc_polling_entity *pollent) {
+  if (pollent->tag == POPS_POLLSET_SET) {
+    return pollent->pollent.pollset_set;
+  }
+  return NULL;
+}
+
+bool grpc_pops_is_empty(const grpc_polling_entity *pollent) {
+  return pollent->tag == POPS_NONE;
+}
+
+void grpc_pops_add_to_pollset_set(grpc_exec_ctx *exec_ctx,
+                                  grpc_polling_entity *pollent,
+                                  grpc_pollset_set *pss_dst) {
+  if (pollent->tag == POPS_POLLSET) {
+    GPR_ASSERT(pollent->pollent.pollset != NULL);
+    grpc_pollset_set_add_pollset(exec_ctx, pss_dst, pollent->pollent.pollset);
+  } else if (pollent->tag == POPS_POLLSET_SET) {
+    GPR_ASSERT(pollent->pollent.pollset_set != NULL);
+    grpc_pollset_set_add_pollset_set(exec_ctx, pss_dst,
+                                     pollent->pollent.pollset_set);
+  } else {
+    gpr_log(GPR_ERROR, "Invalid grpc_polling_entity tag '%d'", pollent->tag);
+    abort();
+  }
+}
+
+void grpc_pops_del_to_pollset_set(grpc_exec_ctx *exec_ctx,
+                                  grpc_polling_entity *pollent,
+                                  grpc_pollset_set *pss_dst) {
+  if (pollent->tag == POPS_POLLSET) {
+    GPR_ASSERT(pollent->pollent.pollset != NULL);
+    grpc_pollset_set_del_pollset(exec_ctx, pss_dst, pollent->pollent.pollset);
+  } else if (pollent->tag == POPS_POLLSET_SET) {
+    GPR_ASSERT(pollent->pollent.pollset_set != NULL);
+    grpc_pollset_set_del_pollset_set(exec_ctx, pss_dst,
+                                     pollent->pollent.pollset_set);
+  } else {
+    gpr_log(GPR_ERROR, "Invalid grpc_polling_entity tag '%d'", pollent->tag);
+    abort();
+  }
+}
diff --git a/src/core/lib/iomgr/pops.h b/src/core/lib/iomgr/polling_entity.h
similarity index 63%
rename from src/core/lib/iomgr/pops.h
rename to src/core/lib/iomgr/polling_entity.h
index 68594276870451b30d71152e20048f3ae31a1ce7..c72b292ffe62b2a8a3b7331d650aac466f490dea 100644
--- a/src/core/lib/iomgr/pops.h
+++ b/src/core/lib/iomgr/polling_entity.h
@@ -31,45 +31,50 @@
  *
  */
 
-#ifndef GRPC_CORE_LIB_IOMGR_POPS_H
-#define GRPC_CORE_LIB_IOMGR_POPS_H
+#ifndef GRPC_CORE_LIB_IOMGR_POLLING_ENTITY_H
+#define GRPC_CORE_LIB_IOMGR_POLLING_ENTITY_H
 
 #include "src/core/lib/iomgr/pollset.h"
 #include "src/core/lib/iomgr/pollset_set.h"
 
-/* A grpc_pops is a pollset-or-pollset_set container. It allows functions that
+/* A grpc_polling_entity is a pollset-or-pollset_set container. It allows
+ * functions that
  * accept a pollset XOR a pollset_set to do so through an abstract interface.
  * No ownership is taken. */
 
-typedef struct grpc_pops {
+typedef struct grpc_polling_entity {
   union {
     grpc_pollset *pollset;
     grpc_pollset_set *pollset_set;
-  } pops;
+  } pollent;
   enum pops_tag { POPS_NONE, POPS_POLLSET, POPS_POLLSET_SET } tag;
-} grpc_pops;
+} grpc_polling_entity;
 
-grpc_pops grpc_pops_create_from_pollset_set(grpc_pollset_set *pollset_set);
-grpc_pops grpc_pops_create_from_pollset(grpc_pollset *pollset);
+grpc_polling_entity grpc_pops_create_from_pollset_set(
+    grpc_pollset_set *pollset_set);
+grpc_polling_entity grpc_pops_create_from_pollset(grpc_pollset *pollset);
 
-/** If \a pops contains a pollset, return it. Otherwise, return NULL */
-grpc_pollset *grpc_pops_pollset(grpc_pops *pops);
+/** If \a pollent contains a pollset, return it. Otherwise, return NULL */
+grpc_pollset *grpc_pops_pollset(grpc_polling_entity *pollent);
 
-/** If \a pops contains a pollset_set, return it. Otherwise, return NULL */
-grpc_pollset_set *grpc_pops_pollset_set(grpc_pops *pops);
+/** If \a pollent contains a pollset_set, return it. Otherwise, return NULL */
+grpc_pollset_set *grpc_pops_pollset_set(grpc_polling_entity *pollent);
 
-bool grpc_pops_is_empty(const grpc_pops *pops);
+bool grpc_pops_is_empty(const grpc_polling_entity *pollent);
 
-/** Add the pollset or pollset_set in \a pops to the destination pollset_set \a
+/** Add the pollset or pollset_set in \a pollent to the destination pollset_set
+ * \a
  * pss_dst */
-void grpc_pops_add_to_pollset_set(grpc_exec_ctx *exec_ctx, grpc_pops *pops,
+void grpc_pops_add_to_pollset_set(grpc_exec_ctx *exec_ctx,
+                                  grpc_polling_entity *pollent,
                                   grpc_pollset_set *pss_dst);
 
-/** Delete the pollset or pollset_set in \a pops from the destination
+/** Delete the pollset or pollset_set in \a pollent from the destination
  * pollset_set \a
  * pss_dst */
-void grpc_pops_del_to_pollset_set(grpc_exec_ctx *exec_ctx, grpc_pops *pops,
+void grpc_pops_del_to_pollset_set(grpc_exec_ctx *exec_ctx,
+                                  grpc_polling_entity *pollent,
                                   grpc_pollset_set *pss_dst);
 /* pollset_set specific */
 
-#endif /* GRPC_CORE_LIB_IOMGR_POPS_H */
+#endif /* GRPC_CORE_LIB_IOMGR_POLLING_ENTITY_H */
diff --git a/src/core/lib/iomgr/pops.c b/src/core/lib/iomgr/pops.c
deleted file mode 100644
index 611a728b9ec2dec148792a8f4e251b7715f88a31..0000000000000000000000000000000000000000
--- a/src/core/lib/iomgr/pops.c
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- *
- * Copyright 2016, Google Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#include <grpc/support/alloc.h>
-#include <grpc/support/log.h>
-
-#include "src/core/lib/iomgr/pops.h"
-
-grpc_pops grpc_pops_create_from_pollset_set(grpc_pollset_set *pollset_set) {
-  grpc_pops pops;
-  pops.pops.pollset_set = pollset_set;
-  pops.tag = POPS_POLLSET_SET;
-  return pops;
-}
-
-grpc_pops grpc_pops_create_from_pollset(grpc_pollset *pollset) {
-  grpc_pops pops;
-  pops.pops.pollset = pollset;
-  pops.tag = POPS_POLLSET;
-  return pops;
-}
-
-grpc_pollset *grpc_pops_pollset(grpc_pops *pops) {
-  if (pops->tag == POPS_POLLSET) {
-    return pops->pops.pollset;
-  }
-  return NULL;
-}
-
-grpc_pollset_set *grpc_pops_pollset_set(grpc_pops *pops) {
-  if (pops->tag == POPS_POLLSET_SET) {
-    return pops->pops.pollset_set;
-  }
-  return NULL;
-}
-
-bool grpc_pops_is_empty(const grpc_pops *pops) {
-  return pops->tag == POPS_NONE;
-}
-
-void grpc_pops_add_to_pollset_set(grpc_exec_ctx *exec_ctx, grpc_pops *pops,
-                                  grpc_pollset_set *pss_dst) {
-  if (pops->tag == POPS_POLLSET) {
-    GPR_ASSERT(pops->pops.pollset != NULL);
-    grpc_pollset_set_add_pollset(exec_ctx, pss_dst, pops->pops.pollset);
-  } else if (pops->tag == POPS_POLLSET_SET) {
-    GPR_ASSERT(pops->pops.pollset_set != NULL);
-    grpc_pollset_set_add_pollset_set(exec_ctx, pss_dst, pops->pops.pollset_set);
-  } else {
-    gpr_log(GPR_ERROR, "Invalid grpc_pops tag '%d'", pops->tag);
-    abort();
-  }
-}
-
-void grpc_pops_del_to_pollset_set(grpc_exec_ctx *exec_ctx, grpc_pops *pops,
-                                  grpc_pollset_set *pss_dst) {
-  if (pops->tag == POPS_POLLSET) {
-    GPR_ASSERT(pops->pops.pollset != NULL);
-    grpc_pollset_set_del_pollset(exec_ctx, pss_dst, pops->pops.pollset);
-  } else if (pops->tag == POPS_POLLSET_SET) {
-    GPR_ASSERT(pops->pops.pollset_set != NULL);
-    grpc_pollset_set_del_pollset_set(exec_ctx, pss_dst, pops->pops.pollset_set);
-  } else {
-    gpr_log(GPR_ERROR, "Invalid grpc_pops tag '%d'", pops->tag);
-    abort();
-  }
-}
diff --git a/src/core/lib/iomgr/timer.c b/src/core/lib/iomgr/timer.c
index acb5b26c870880df0da53dc275c038d791dd4cac..05a2fc104fc0ef83a85e613407451f506475ea77 100644
--- a/src/core/lib/iomgr/timer.c
+++ b/src/core/lib/iomgr/timer.c
@@ -278,7 +278,8 @@ static int refill_queue(shard_type *shard, gpr_timespec now) {
   return !grpc_timer_heap_is_empty(&shard->heap);
 }
 
-/* This pops the next non-cancelled timer with deadline <= now from the queue,
+/* This pollent the next non-cancelled timer with deadline <= now from the
+   queue,
    or returns NULL if there isn't one.
    REQUIRES: shard->mu locked */
 static grpc_timer *pop_one(shard_type *shard, gpr_timespec now) {
diff --git a/src/core/lib/security/credentials/composite/composite_credentials.c b/src/core/lib/security/credentials/composite/composite_credentials.c
index 38abd84b04186182aeceb29b78cd5c1854a76196..07db8bfd751160f91b80be15167a3210323ff878 100644
--- a/src/core/lib/security/credentials/composite/composite_credentials.c
+++ b/src/core/lib/security/credentials/composite/composite_credentials.c
@@ -35,7 +35,7 @@
 
 #include <string.h>
 
-#include "src/core/lib/iomgr/pops.h"
+#include "src/core/lib/iomgr/polling_entity.h"
 #include "src/core/lib/surface/api_trace.h"
 
 #include <grpc/support/alloc.h>
@@ -50,7 +50,7 @@ typedef struct {
   grpc_credentials_md_store *md_elems;
   grpc_auth_metadata_context auth_md_context;
   void *user_data;
-  grpc_pops *pops;
+  grpc_polling_entity *pollent;
   grpc_credentials_metadata_cb cb;
 } grpc_composite_call_credentials_metadata_context;
 
@@ -93,9 +93,9 @@ static void composite_call_metadata_cb(grpc_exec_ctx *exec_ctx, void *user_data,
   if (ctx->creds_index < ctx->composite_creds->inner.num_creds) {
     grpc_call_credentials *inner_creds =
         ctx->composite_creds->inner.creds_array[ctx->creds_index++];
-    grpc_call_credentials_get_request_metadata(exec_ctx, inner_creds, ctx->pops,
-                                               ctx->auth_md_context,
-                                               composite_call_metadata_cb, ctx);
+    grpc_call_credentials_get_request_metadata(
+        exec_ctx, inner_creds, ctx->pollent, ctx->auth_md_context,
+        composite_call_metadata_cb, ctx);
     return;
   }
 
@@ -106,9 +106,9 @@ static void composite_call_metadata_cb(grpc_exec_ctx *exec_ctx, void *user_data,
 }
 
 static void composite_call_get_request_metadata(
-    grpc_exec_ctx *exec_ctx, grpc_call_credentials *creds, grpc_pops *pops,
-    grpc_auth_metadata_context auth_md_context, grpc_credentials_metadata_cb cb,
-    void *user_data) {
+    grpc_exec_ctx *exec_ctx, grpc_call_credentials *creds,
+    grpc_polling_entity *pollent, grpc_auth_metadata_context auth_md_context,
+    grpc_credentials_metadata_cb cb, void *user_data) {
   grpc_composite_call_credentials *c = (grpc_composite_call_credentials *)creds;
   grpc_composite_call_credentials_metadata_context *ctx;
 
@@ -118,10 +118,10 @@ static void composite_call_get_request_metadata(
   ctx->user_data = user_data;
   ctx->cb = cb;
   ctx->composite_creds = c;
-  ctx->pops = pops;
+  ctx->pollent = pollent;
   ctx->md_elems = grpc_credentials_md_store_create(c->inner.num_creds);
   grpc_call_credentials_get_request_metadata(
-      exec_ctx, c->inner.creds_array[ctx->creds_index++], ctx->pops,
+      exec_ctx, c->inner.creds_array[ctx->creds_index++], ctx->pollent,
       auth_md_context, composite_call_metadata_cb, ctx);
 }
 
diff --git a/src/core/lib/security/credentials/credentials.c b/src/core/lib/security/credentials/credentials.c
index b33deefb3db770cdc24ae04e71d2869c86e6b990..f45a8d8ff683a47ac9984667eab8a5b81e5d930a 100644
--- a/src/core/lib/security/credentials/credentials.c
+++ b/src/core/lib/security/credentials/credentials.c
@@ -111,7 +111,7 @@ void grpc_call_credentials_release(grpc_call_credentials *creds) {
 
 void grpc_call_credentials_get_request_metadata(
     grpc_exec_ctx *exec_ctx, grpc_call_credentials *creds,
-    grpc_pops *pops, grpc_auth_metadata_context context,
+    grpc_polling_entity *pollent, grpc_auth_metadata_context context,
     grpc_credentials_metadata_cb cb, void *user_data) {
   if (creds == NULL || creds->vtable->get_request_metadata == NULL) {
     if (cb != NULL) {
@@ -119,7 +119,7 @@ void grpc_call_credentials_get_request_metadata(
     }
     return;
   }
-  creds->vtable->get_request_metadata(exec_ctx, creds, pops, context, cb,
+  creds->vtable->get_request_metadata(exec_ctx, creds, pollent, context, cb,
                                       user_data);
 }
 
diff --git a/src/core/lib/security/credentials/credentials.h b/src/core/lib/security/credentials/credentials.h
index d3531bcfc01fcf3ed768bb4311d8fe3f03102a38..15dcfe473d844e270837ecd3400ea01154a7497a 100644
--- a/src/core/lib/security/credentials/credentials.h
+++ b/src/core/lib/security/credentials/credentials.h
@@ -41,7 +41,7 @@
 
 #include "src/core/lib/http/httpcli.h"
 #include "src/core/lib/http/parser.h"
-#include "src/core/lib/iomgr/pops.h"
+#include "src/core/lib/iomgr/polling_entity.h"
 #include "src/core/lib/security/transport/security_connector.h"
 
 struct grpc_http_response;
@@ -165,7 +165,8 @@ typedef void (*grpc_credentials_metadata_cb)(grpc_exec_ctx *exec_ctx,
 typedef struct {
   void (*destruct)(grpc_call_credentials *c);
   void (*get_request_metadata)(grpc_exec_ctx *exec_ctx,
-                               grpc_call_credentials *c, grpc_pops *pops,
+                               grpc_call_credentials *c,
+                               grpc_polling_entity *pollent,
                                grpc_auth_metadata_context context,
                                grpc_credentials_metadata_cb cb,
                                void *user_data);
@@ -180,9 +181,9 @@ struct grpc_call_credentials {
 grpc_call_credentials *grpc_call_credentials_ref(grpc_call_credentials *creds);
 void grpc_call_credentials_unref(grpc_call_credentials *creds);
 void grpc_call_credentials_get_request_metadata(
-    grpc_exec_ctx *exec_ctx, grpc_call_credentials *creds, grpc_pops *pops,
-    grpc_auth_metadata_context context, grpc_credentials_metadata_cb cb,
-    void *user_data);
+    grpc_exec_ctx *exec_ctx, grpc_call_credentials *creds,
+    grpc_polling_entity *pollent, grpc_auth_metadata_context context,
+    grpc_credentials_metadata_cb cb, void *user_data);
 
 /* Metadata-only credentials with the specified key and value where
    asynchronicity can be simulated for testing. */
diff --git a/src/core/lib/security/credentials/fake/fake_credentials.c b/src/core/lib/security/credentials/fake/fake_credentials.c
index beb0e5ee1eb15fc7ce43897b398f243057917f21..005777d3c6467e66a492ee1d3d7025ba9288c5d8 100644
--- a/src/core/lib/security/credentials/fake/fake_credentials.c
+++ b/src/core/lib/security/credentials/fake/fake_credentials.c
@@ -106,7 +106,7 @@ static void on_simulated_token_fetch_done(grpc_exec_ctx *exec_ctx,
 
 static void md_only_test_get_request_metadata(
     grpc_exec_ctx *exec_ctx, grpc_call_credentials *creds,
-    grpc_pops *pops, grpc_auth_metadata_context context,
+    grpc_polling_entity *pollent, grpc_auth_metadata_context context,
     grpc_credentials_metadata_cb cb, void *user_data) {
   grpc_md_only_test_credentials *c = (grpc_md_only_test_credentials *)creds;
 
diff --git a/src/core/lib/security/credentials/google_default/google_default_credentials.c b/src/core/lib/security/credentials/google_default/google_default_credentials.c
index ddea7a9ed28ccb75791a0add413003ff5b1575c0..ef21c24a6c8d64f6daa9ef6beaa02f6b6e0be440 100644
--- a/src/core/lib/security/credentials/google_default/google_default_credentials.c
+++ b/src/core/lib/security/credentials/google_default/google_default_credentials.c
@@ -41,7 +41,7 @@
 
 #include "src/core/lib/http/httpcli.h"
 #include "src/core/lib/http/parser.h"
-#include "src/core/lib/iomgr/pops.h"
+#include "src/core/lib/iomgr/polling_entity.h"
 #include "src/core/lib/security/credentials/jwt/jwt_credentials.h"
 #include "src/core/lib/security/credentials/oauth2/oauth2_credentials.h"
 #include "src/core/lib/support/env.h"
@@ -63,7 +63,7 @@ static gpr_once g_once = GPR_ONCE_INIT;
 static void init_default_credentials(void) { gpr_mu_init(&g_state_mu); }
 
 typedef struct {
-  grpc_pops pops;
+  grpc_polling_entity pollent;
   int is_done;
   int success;
 } compute_engine_detector;
@@ -87,7 +87,7 @@ static void on_compute_engine_detection_http_response(
   }
   gpr_mu_lock(g_polling_mu);
   detector->is_done = 1;
-  grpc_pollset_kick(grpc_pops_pollset(&detector->pops), NULL);
+  grpc_pollset_kick(grpc_pops_pollset(&detector->pollent), NULL);
   gpr_mu_unlock(g_polling_mu);
 }
 
@@ -108,7 +108,7 @@ static int is_stack_running_on_compute_engine(void) {
 
   grpc_pollset *pollset = gpr_malloc(grpc_pollset_size());
   grpc_pollset_init(pollset, &g_polling_mu);
-  detector.pops = grpc_pops_create_from_pollset(pollset);
+  detector.pollent = grpc_pops_create_from_pollset(pollset);
   detector.is_done = 0;
   detector.success = 0;
 
@@ -119,7 +119,7 @@ static int is_stack_running_on_compute_engine(void) {
   grpc_httpcli_context_init(&context);
 
   grpc_httpcli_get(
-      &exec_ctx, &context, &detector.pops, &request,
+      &exec_ctx, &context, &detector.pollent, &request,
       gpr_time_add(gpr_now(GPR_CLOCK_REALTIME), max_detection_delay),
       on_compute_engine_detection_http_response, &detector);
 
@@ -130,7 +130,7 @@ static int is_stack_running_on_compute_engine(void) {
   gpr_mu_lock(g_polling_mu);
   while (!detector.is_done) {
     grpc_pollset_worker *worker = NULL;
-    grpc_pollset_work(&exec_ctx, grpc_pops_pollset(&detector.pops), &worker,
+    grpc_pollset_work(&exec_ctx, grpc_pops_pollset(&detector.pollent), &worker,
                       gpr_now(GPR_CLOCK_MONOTONIC),
                       gpr_inf_future(GPR_CLOCK_MONOTONIC));
   }
@@ -138,13 +138,13 @@ static int is_stack_running_on_compute_engine(void) {
 
   grpc_httpcli_context_destroy(&context);
   grpc_closure_init(&destroy_closure, destroy_pollset,
-                    grpc_pops_pollset(&detector.pops));
-  grpc_pollset_shutdown(&exec_ctx, grpc_pops_pollset(&detector.pops),
+                    grpc_pops_pollset(&detector.pollent));
+  grpc_pollset_shutdown(&exec_ctx, grpc_pops_pollset(&detector.pollent),
                         &destroy_closure);
   grpc_exec_ctx_finish(&exec_ctx);
   g_polling_mu = NULL;
 
-  gpr_free(grpc_pops_pollset(&detector.pops));
+  gpr_free(grpc_pops_pollset(&detector.pollent));
 
   return detector.success;
 }
diff --git a/src/core/lib/security/credentials/iam/iam_credentials.c b/src/core/lib/security/credentials/iam/iam_credentials.c
index 90779cfc715308482118a8c19cdb9322238204ef..64d58718449d137d1803592591609d7bcb1b4e75 100644
--- a/src/core/lib/security/credentials/iam/iam_credentials.c
+++ b/src/core/lib/security/credentials/iam/iam_credentials.c
@@ -49,7 +49,7 @@ static void iam_destruct(grpc_call_credentials *creds) {
 
 static void iam_get_request_metadata(grpc_exec_ctx *exec_ctx,
                                      grpc_call_credentials *creds,
-                                     grpc_pops* pops,
+                                     grpc_polling_entity *pollent,
                                      grpc_auth_metadata_context context,
                                      grpc_credentials_metadata_cb cb,
                                      void *user_data) {
diff --git a/src/core/lib/security/credentials/jwt/jwt_credentials.c b/src/core/lib/security/credentials/jwt/jwt_credentials.c
index 590f29b7b76dc54b36cec6653f207d7510fbe9f9..973fb75eaab472953cedad5b11e6fb2b176b9e1d 100644
--- a/src/core/lib/security/credentials/jwt/jwt_credentials.c
+++ b/src/core/lib/security/credentials/jwt/jwt_credentials.c
@@ -64,7 +64,7 @@ static void jwt_destruct(grpc_call_credentials *creds) {
 
 static void jwt_get_request_metadata(grpc_exec_ctx *exec_ctx,
                                      grpc_call_credentials *creds,
-                                     grpc_pops* pops,
+                                     grpc_polling_entity *pollent,
                                      grpc_auth_metadata_context context,
                                      grpc_credentials_metadata_cb cb,
                                      void *user_data) {
diff --git a/src/core/lib/security/credentials/jwt/jwt_verifier.c b/src/core/lib/security/credentials/jwt/jwt_verifier.c
index a3e0c2d78c3a1e3837b7a6d1455286909d63af99..c56715e55af689b36290433f22ec5d82542c2062 100644
--- a/src/core/lib/security/credentials/jwt/jwt_verifier.c
+++ b/src/core/lib/security/credentials/jwt/jwt_verifier.c
@@ -37,7 +37,7 @@
 #include <string.h>
 
 #include "src/core/lib/http/httpcli.h"
-#include "src/core/lib/iomgr/pops.h"
+#include "src/core/lib/iomgr/polling_entity.h"
 #include "src/core/lib/security/util/b64.h"
 #include "src/core/lib/tsi/ssl_types.h"
 
@@ -322,7 +322,7 @@ grpc_jwt_verifier_status grpc_jwt_claims_check(const grpc_jwt_claims *claims,
 
 typedef struct {
   grpc_jwt_verifier *verifier;
-  grpc_pops pops;
+  grpc_polling_entity pollent;
   jose_header *header;
   grpc_jwt_claims *claims;
   char *audience;
@@ -342,7 +342,7 @@ static verifier_cb_ctx *verifier_cb_ctx_create(
   verifier_cb_ctx *ctx = gpr_malloc(sizeof(verifier_cb_ctx));
   memset(ctx, 0, sizeof(verifier_cb_ctx));
   ctx->verifier = verifier;
-  ctx->pops = grpc_pops_create_from_pollset(pollset);
+  ctx->pollent = grpc_pops_create_from_pollset(pollset);
   ctx->header = header;
   ctx->audience = gpr_strdup(audience);
   ctx->claims = claims;
@@ -645,7 +645,7 @@ static void on_openid_config_retrieved(grpc_exec_ctx *exec_ctx, void *user_data,
     *(req.host + (req.http.path - jwks_uri)) = '\0';
   }
   grpc_httpcli_get(
-      exec_ctx, &ctx->verifier->http_ctx, &ctx->pops, &req,
+      exec_ctx, &ctx->verifier->http_ctx, &ctx->pollent, &req,
       gpr_time_add(gpr_now(GPR_CLOCK_REALTIME), grpc_jwt_verifier_max_delay),
       on_keys_retrieved, ctx);
   grpc_json_destroy(json);
@@ -748,7 +748,7 @@ static void retrieve_key_and_verify(grpc_exec_ctx *exec_ctx,
   }
 
   grpc_httpcli_get(
-      exec_ctx, &ctx->verifier->http_ctx, &ctx->pops, &req,
+      exec_ctx, &ctx->verifier->http_ctx, &ctx->pollent, &req,
       gpr_time_add(gpr_now(GPR_CLOCK_REALTIME), grpc_jwt_verifier_max_delay),
       http_cb, ctx);
   gpr_free(req.host);
diff --git a/src/core/lib/security/credentials/oauth2/oauth2_credentials.c b/src/core/lib/security/credentials/oauth2/oauth2_credentials.c
index 131aa69fb81057d9559ea0ee6500869c1e2b97ef..268026b9f06c654c2bc4f22c0ae9644ba4c13757 100644
--- a/src/core/lib/security/credentials/oauth2/oauth2_credentials.c
+++ b/src/core/lib/security/credentials/oauth2/oauth2_credentials.c
@@ -244,7 +244,7 @@ static void on_oauth2_token_fetcher_http_response(
 
 static void oauth2_token_fetcher_get_request_metadata(
     grpc_exec_ctx *exec_ctx, grpc_call_credentials *creds,
-    grpc_pops *pops, grpc_auth_metadata_context context,
+    grpc_polling_entity *pollent, grpc_auth_metadata_context context,
     grpc_credentials_metadata_cb cb, void *user_data) {
   grpc_oauth2_token_fetcher_credentials *c =
       (grpc_oauth2_token_fetcher_credentials *)creds;
@@ -270,7 +270,7 @@ static void oauth2_token_fetcher_get_request_metadata(
     c->fetch_func(
         exec_ctx,
         grpc_credentials_metadata_request_create(creds, cb, user_data),
-        &c->httpcli_context, pops, on_oauth2_token_fetcher_http_response,
+        &c->httpcli_context, pollent, on_oauth2_token_fetcher_http_response,
         gpr_time_add(gpr_now(GPR_CLOCK_REALTIME), refresh_threshold));
   }
 }
@@ -295,7 +295,7 @@ static grpc_call_credentials_vtable compute_engine_vtable = {
 
 static void compute_engine_fetch_oauth2(
     grpc_exec_ctx *exec_ctx, grpc_credentials_metadata_request *metadata_req,
-    grpc_httpcli_context *httpcli_context, grpc_pops* pops,
+    grpc_httpcli_context *httpcli_context, grpc_polling_entity *pollent,
     grpc_httpcli_response_cb response_cb, gpr_timespec deadline) {
   grpc_http_header header = {"Metadata-Flavor", "Google"};
   grpc_httpcli_request request;
@@ -304,7 +304,7 @@ static void compute_engine_fetch_oauth2(
   request.http.path = GRPC_COMPUTE_ENGINE_METADATA_TOKEN_PATH;
   request.http.hdr_count = 1;
   request.http.hdrs = &header;
-  grpc_httpcli_get(exec_ctx, httpcli_context, pops, &request, deadline,
+  grpc_httpcli_get(exec_ctx, httpcli_context, pollent, &request, deadline,
                    response_cb, metadata_req);
 }
 
@@ -336,7 +336,7 @@ static grpc_call_credentials_vtable refresh_token_vtable = {
 
 static void refresh_token_fetch_oauth2(
     grpc_exec_ctx *exec_ctx, grpc_credentials_metadata_request *metadata_req,
-    grpc_httpcli_context *httpcli_context, grpc_pops* pops,
+    grpc_httpcli_context *httpcli_context, grpc_polling_entity *pollent,
     grpc_httpcli_response_cb response_cb, gpr_timespec deadline) {
   grpc_google_refresh_token_credentials *c =
       (grpc_google_refresh_token_credentials *)metadata_req->creds;
@@ -353,7 +353,7 @@ static void refresh_token_fetch_oauth2(
   request.http.hdr_count = 1;
   request.http.hdrs = &header;
   request.handshaker = &grpc_httpcli_ssl;
-  grpc_httpcli_post(exec_ctx, httpcli_context, pops, &request, body,
+  grpc_httpcli_post(exec_ctx, httpcli_context, pollent, &request, body,
                     strlen(body), deadline, response_cb, metadata_req);
   gpr_free(body);
 }
@@ -396,7 +396,7 @@ static void access_token_destruct(grpc_call_credentials *creds) {
 
 static void access_token_get_request_metadata(
     grpc_exec_ctx *exec_ctx, grpc_call_credentials *creds,
-    grpc_pops* pops, grpc_auth_metadata_context context,
+    grpc_polling_entity *pollent, grpc_auth_metadata_context context,
     grpc_credentials_metadata_cb cb, void *user_data) {
   grpc_access_token_credentials *c = (grpc_access_token_credentials *)creds;
   cb(exec_ctx, user_data, c->access_token_md->entries, 1, GRPC_CREDENTIALS_OK);
diff --git a/src/core/lib/security/credentials/oauth2/oauth2_credentials.h b/src/core/lib/security/credentials/oauth2/oauth2_credentials.h
index 2ae37f5c24e3409c3498e7b3830f633a943de0dc..3bc8360a41a6baaa080a603d6b1df130f41927ca 100644
--- a/src/core/lib/security/credentials/oauth2/oauth2_credentials.h
+++ b/src/core/lib/security/credentials/oauth2/oauth2_credentials.h
@@ -70,7 +70,7 @@ void grpc_auth_refresh_token_destruct(grpc_auth_refresh_token *refresh_token);
 typedef void (*grpc_fetch_oauth2_func)(grpc_exec_ctx *exec_ctx,
                                        grpc_credentials_metadata_request *req,
                                        grpc_httpcli_context *http_context,
-                                       grpc_pops *pops,
+                                       grpc_polling_entity *pollent,
                                        grpc_httpcli_response_cb response_cb,
                                        gpr_timespec deadline);
 typedef struct {
diff --git a/src/core/lib/security/credentials/plugin/plugin_credentials.c b/src/core/lib/security/credentials/plugin/plugin_credentials.c
index 348f4c929f95fa9fe4e187616ad658edb1b6e969..9fb55e8466c0aad93438ba55fbb91a13148a0e82 100644
--- a/src/core/lib/security/credentials/plugin/plugin_credentials.c
+++ b/src/core/lib/security/credentials/plugin/plugin_credentials.c
@@ -94,7 +94,7 @@ static void plugin_md_request_metadata_ready(void *request,
 
 static void plugin_get_request_metadata(grpc_exec_ctx *exec_ctx,
                                         grpc_call_credentials *creds,
-                                        grpc_pops *pops,
+                                        grpc_polling_entity *pollent,
                                         grpc_auth_metadata_context context,
                                         grpc_credentials_metadata_cb cb,
                                         void *user_data) {
diff --git a/src/core/lib/security/transport/client_auth_filter.c b/src/core/lib/security/transport/client_auth_filter.c
index ac504ec95b7b9b5bdc90ee9bc5ad0c9735818c28..937bdf4faa194b322bc701738eed6bc2552389a1 100644
--- a/src/core/lib/security/transport/client_auth_filter.c
+++ b/src/core/lib/security/transport/client_auth_filter.c
@@ -58,7 +58,7 @@ typedef struct {
      network requests, they should be done under a pollset added to this
      pollset_set so that work can progress when this call wants work to progress
   */
-  grpc_pops *pops;
+  grpc_polling_entity *pollent;
   grpc_transport_stream_op op;
   uint8_t security_context_set;
   grpc_linked_mdelem md_links[MAX_CREDENTIALS_METADATA_COUNT];
@@ -184,9 +184,9 @@ static void send_security_metadata(grpc_exec_ctx *exec_ctx,
   build_auth_metadata_context(&chand->security_connector->base,
                               chand->auth_context, calld);
   calld->op = *op; /* Copy op (originates from the caller's stack). */
-  GPR_ASSERT(calld->pops != NULL);
+  GPR_ASSERT(calld->pollent != NULL);
   grpc_call_credentials_get_request_metadata(
-      exec_ctx, calld->creds, calld->pops, calld->auth_md_context,
+      exec_ctx, calld->creds, calld->pollent, calld->auth_md_context,
       on_credentials_metadata, elem);
 }
 
@@ -272,9 +272,9 @@ static void init_call_elem(grpc_exec_ctx *exec_ctx, grpc_call_element *elem,
 
 static void set_pollset_or_pollset_set(grpc_exec_ctx *exec_ctx,
                                        grpc_call_element *elem,
-                                       grpc_pops *pops) {
+                                       grpc_polling_entity *pollent) {
   call_data *calld = elem->call_data;
-  calld->pops = pops;
+  calld->pollent = pollent;
 }
 
 /* Destructor for call_data */
diff --git a/src/core/lib/surface/call.c b/src/core/lib/surface/call.c
index 9e51e6bc5eb0034ef34c4358736ebf7454f09a31..decc37ef43b4842de259a50e06482285be7c411c 100644
--- a/src/core/lib/surface/call.c
+++ b/src/core/lib/surface/call.c
@@ -135,7 +135,7 @@ typedef struct batch_control {
 
 struct grpc_call {
   grpc_completion_queue *cq;
-  grpc_pops pops;
+  grpc_polling_entity pollent;
   grpc_channel *channel;
   grpc_call *parent;
   grpc_call *first_child;
@@ -289,14 +289,14 @@ grpc_call *grpc_call_create(
         pollset_set_alternative == NULL &&
         "Only one of 'cq' and 'pollset_set_alternative' should be non-NULL.");
     GRPC_CQ_INTERNAL_REF(cq, "bind");
-    call->pops = grpc_pops_create_from_pollset(grpc_cq_pollset(cq));
+    call->pollent = grpc_pops_create_from_pollset(grpc_cq_pollset(cq));
   }
   if (pollset_set_alternative != NULL) {
-    call->pops = grpc_pops_create_from_pollset_set(pollset_set_alternative);
+    call->pollent = grpc_pops_create_from_pollset_set(pollset_set_alternative);
   }
-  if (!grpc_pops_is_empty(&call->pops)) {
+  if (!grpc_pops_is_empty(&call->pollent)) {
     grpc_call_stack_set_pollset_or_pollset_set(
-        &exec_ctx, CALL_STACK_FROM_CALL(call), &call->pops);
+        &exec_ctx, CALL_STACK_FROM_CALL(call), &call->pollent);
   }
   if (parent_call != NULL) {
     GRPC_CALL_INTERNAL_REF(parent_call, "child");
@@ -352,15 +352,15 @@ void grpc_call_set_completion_queue(grpc_exec_ctx *exec_ctx, grpc_call *call,
                                     grpc_completion_queue *cq) {
   GPR_ASSERT(cq);
 
-  if (grpc_pops_pollset_set(&call->pops) != NULL) {
+  if (grpc_pops_pollset_set(&call->pollent) != NULL) {
     gpr_log(GPR_ERROR, "A pollset_set is already registered for this call.");
     abort();
   }
   call->cq = cq;
   GRPC_CQ_INTERNAL_REF(cq, "bind");
-  call->pops = grpc_pops_create_from_pollset(grpc_cq_pollset(cq));
+  call->pollent = grpc_pops_create_from_pollset(grpc_cq_pollset(cq));
   grpc_call_stack_set_pollset_or_pollset_set(
-      exec_ctx, CALL_STACK_FROM_CALL(call), &call->pops);
+      exec_ctx, CALL_STACK_FROM_CALL(call), &call->pollent);
 }
 
 #ifdef GRPC_STREAM_REFCOUNT_DEBUG
diff --git a/src/core/lib/transport/transport.c b/src/core/lib/transport/transport.c
index fdde376a0976c5e47bebcf7d4fca158a733e2c2c..7449b16e20b660f178ea2e96d815c7ee08672f64 100644
--- a/src/core/lib/transport/transport.c
+++ b/src/core/lib/transport/transport.c
@@ -126,12 +126,13 @@ void grpc_transport_perform_op(grpc_exec_ctx *exec_ctx,
 }
 
 void grpc_transport_set_pops(grpc_exec_ctx *exec_ctx, grpc_transport *transport,
-                             grpc_stream *stream, grpc_pops *pops) {
+                             grpc_stream *stream,
+                             grpc_polling_entity *pollent) {
   grpc_pollset *pollset;
   grpc_pollset_set *pollset_set;
-  if ((pollset = grpc_pops_pollset(pops)) != NULL) {
+  if ((pollset = grpc_pops_pollset(pollent)) != NULL) {
     transport->vtable->set_pollset(exec_ctx, transport, stream, pollset);
-  } else if ((pollset_set = grpc_pops_pollset_set(pops)) != NULL) {
+  } else if ((pollset_set = grpc_pops_pollset_set(pollent)) != NULL) {
     transport->vtable->set_pollset_set(exec_ctx, transport, stream,
                                        pollset_set);
   } else {
diff --git a/src/core/lib/transport/transport.h b/src/core/lib/transport/transport.h
index 6948e9de3da95d1ff01f3dce74328f886ca619f4..ed06fc3ed2143fadc5872bbaba162e1ad96f7a1c 100644
--- a/src/core/lib/transport/transport.h
+++ b/src/core/lib/transport/transport.h
@@ -37,9 +37,9 @@
 #include <stddef.h>
 
 #include "src/core/lib/channel/context.h"
+#include "src/core/lib/iomgr/polling_entity.h"
 #include "src/core/lib/iomgr/pollset.h"
 #include "src/core/lib/iomgr/pollset_set.h"
-#include "src/core/lib/iomgr/pops.h"
 #include "src/core/lib/transport/byte_stream.h"
 #include "src/core/lib/transport/metadata_batch.h"
 
@@ -199,7 +199,7 @@ int grpc_transport_init_stream(grpc_exec_ctx *exec_ctx,
                                const void *server_data);
 
 void grpc_transport_set_pops(grpc_exec_ctx *exec_ctx, grpc_transport *transport,
-                             grpc_stream *stream, grpc_pops *pops);
+                             grpc_stream *stream, grpc_polling_entity *pollent);
 
 /* Destroy transport data for a stream.
 
diff --git a/src/python/grpcio/grpc_core_dependencies.py b/src/python/grpcio/grpc_core_dependencies.py
index 1427396d8b8b88bbdc7bf6e019083131c297ad22..2c04f0eb3651b612c6bcfe5fc0afc7559bea2a6b 100644
--- a/src/python/grpcio/grpc_core_dependencies.py
+++ b/src/python/grpcio/grpc_core_dependencies.py
@@ -102,9 +102,9 @@ CORE_SOURCE_FILES = [
   'src/core/lib/iomgr/iomgr.c',
   'src/core/lib/iomgr/iomgr_posix.c',
   'src/core/lib/iomgr/iomgr_windows.c',
+  'src/core/lib/iomgr/polling_entity.c',
   'src/core/lib/iomgr/pollset_set_windows.c',
   'src/core/lib/iomgr/pollset_windows.c',
-  'src/core/lib/iomgr/pops.c',
   'src/core/lib/iomgr/resolve_address_posix.c',
   'src/core/lib/iomgr/resolve_address_windows.c',
   'src/core/lib/iomgr/sockaddr_utils.c',
diff --git a/test/core/http/httpcli_test.c b/test/core/http/httpcli_test.c
index e517e37102198a5745ae950c6bf105a143285450..0e6eebb4e9729d572ca24c6125a920acb6c8c0a8 100644
--- a/test/core/http/httpcli_test.c
+++ b/test/core/http/httpcli_test.c
@@ -48,7 +48,7 @@
 static int g_done = 0;
 static grpc_httpcli_context g_context;
 static gpr_mu *g_mu;
-static grpc_pops g_pops;
+static grpc_polling_entity g_pops;
 
 static gpr_timespec n_seconds_time(int seconds) {
   return GRPC_TIMEOUT_SECONDS_TO_DEADLINE(seconds);
diff --git a/test/core/http/httpscli_test.c b/test/core/http/httpscli_test.c
index 8943c492fb178d45eb62b3b2248bc3a030a7f54b..3d00766fc2fec637aed020f09a8c8e923fbf0f0d 100644
--- a/test/core/http/httpscli_test.c
+++ b/test/core/http/httpscli_test.c
@@ -48,7 +48,7 @@
 static int g_done = 0;
 static grpc_httpcli_context g_context;
 static gpr_mu *g_mu;
-static grpc_pops g_pops;
+static grpc_polling_entity g_pops;
 
 static gpr_timespec n_seconds_time(int seconds) {
   return GRPC_TIMEOUT_SECONDS_TO_DEADLINE(seconds);
diff --git a/test/core/security/oauth2_utils.c b/test/core/security/oauth2_utils.c
index 1d113703f4d62514964f9269e800c664d26ee171..5c34feb03d309560c7dc5d0887ad039f02f617de 100644
--- a/test/core/security/oauth2_utils.c
+++ b/test/core/security/oauth2_utils.c
@@ -46,7 +46,7 @@
 
 typedef struct {
   gpr_mu *mu;
-  grpc_pops pops;
+  grpc_polling_entity pops;
   int is_done;
   char *token;
 } oauth2_request;
diff --git a/test/core/security/print_google_default_creds_token.c b/test/core/security/print_google_default_creds_token.c
index ef0e012d913e701156c45bdd253f23525e0f73e3..6383883dec1609301263a808371daa7119b28d0b 100644
--- a/test/core/security/print_google_default_creds_token.c
+++ b/test/core/security/print_google_default_creds_token.c
@@ -48,7 +48,7 @@
 
 typedef struct {
   gpr_mu *mu;
-  grpc_pops pops;
+  grpc_polling_entity pops;
   int is_done;
 } synchronizer;
 
diff --git a/test/core/util/port_server_client.c b/test/core/util/port_server_client.c
index 1bdef6e82b8f29e18b66400db8d75c3af2306e60..8326042c2dfb5fff8585f11fd53cfd4da28954db 100644
--- a/test/core/util/port_server_client.c
+++ b/test/core/util/port_server_client.c
@@ -51,7 +51,7 @@
 
 typedef struct freereq {
   gpr_mu *mu;
-  grpc_pops pops;
+  grpc_polling_entity pops;
   int done;
 } freereq;
 
@@ -117,7 +117,7 @@ void grpc_free_port_using_server(char *server, int port) {
 
 typedef struct portreq {
   gpr_mu *mu;
-  grpc_pops pops;
+  grpc_polling_entity pops;
   int port;
   int retries;
   char *server;
diff --git a/tools/doxygen/Doxyfile.core.internal b/tools/doxygen/Doxyfile.core.internal
index 4a1ed90411af55b7c0194d4998cf7658ec3b0f3f..6ed868af8c4905c9b65021a6489f1f733d66b065 100644
--- a/tools/doxygen/Doxyfile.core.internal
+++ b/tools/doxygen/Doxyfile.core.internal
@@ -815,11 +815,11 @@ src/core/lib/iomgr/iocp_windows.h \
 src/core/lib/iomgr/iomgr.h \
 src/core/lib/iomgr/iomgr_internal.h \
 src/core/lib/iomgr/iomgr_posix.h \
+src/core/lib/iomgr/polling_entity.h \
 src/core/lib/iomgr/pollset.h \
 src/core/lib/iomgr/pollset_set.h \
 src/core/lib/iomgr/pollset_set_windows.h \
 src/core/lib/iomgr/pollset_windows.h \
-src/core/lib/iomgr/pops.h \
 src/core/lib/iomgr/resolve_address.h \
 src/core/lib/iomgr/sockaddr.h \
 src/core/lib/iomgr/sockaddr_posix.h \
@@ -963,9 +963,9 @@ src/core/lib/iomgr/iocp_windows.c \
 src/core/lib/iomgr/iomgr.c \
 src/core/lib/iomgr/iomgr_posix.c \
 src/core/lib/iomgr/iomgr_windows.c \
+src/core/lib/iomgr/polling_entity.c \
 src/core/lib/iomgr/pollset_set_windows.c \
 src/core/lib/iomgr/pollset_windows.c \
-src/core/lib/iomgr/pops.c \
 src/core/lib/iomgr/resolve_address_posix.c \
 src/core/lib/iomgr/resolve_address_windows.c \
 src/core/lib/iomgr/sockaddr_utils.c \
diff --git a/tools/run_tests/sources_and_headers.json b/tools/run_tests/sources_and_headers.json
index 1c476b795a96f779a683128b679f79e43d8705a6..b29852f5390f862afb5adc8e173e197e0be39751 100644
--- a/tools/run_tests/sources_and_headers.json
+++ b/tools/run_tests/sources_and_headers.json
@@ -5538,11 +5538,11 @@
       "src/core/lib/iomgr/iomgr.h", 
       "src/core/lib/iomgr/iomgr_internal.h", 
       "src/core/lib/iomgr/iomgr_posix.h", 
+      "src/core/lib/iomgr/polling_entity.h", 
       "src/core/lib/iomgr/pollset.h", 
       "src/core/lib/iomgr/pollset_set.h", 
       "src/core/lib/iomgr/pollset_set_windows.h", 
       "src/core/lib/iomgr/pollset_windows.h", 
-      "src/core/lib/iomgr/pops.h", 
       "src/core/lib/iomgr/resolve_address.h", 
       "src/core/lib/iomgr/sockaddr.h", 
       "src/core/lib/iomgr/sockaddr_posix.h", 
@@ -5646,14 +5646,14 @@
       "src/core/lib/iomgr/iomgr_posix.c", 
       "src/core/lib/iomgr/iomgr_posix.h", 
       "src/core/lib/iomgr/iomgr_windows.c", 
+      "src/core/lib/iomgr/polling_entity.c", 
+      "src/core/lib/iomgr/polling_entity.h", 
       "src/core/lib/iomgr/pollset.h", 
       "src/core/lib/iomgr/pollset_set.h", 
       "src/core/lib/iomgr/pollset_set_windows.c", 
       "src/core/lib/iomgr/pollset_set_windows.h", 
       "src/core/lib/iomgr/pollset_windows.c", 
       "src/core/lib/iomgr/pollset_windows.h", 
-      "src/core/lib/iomgr/pops.c", 
-      "src/core/lib/iomgr/pops.h", 
       "src/core/lib/iomgr/resolve_address.h", 
       "src/core/lib/iomgr/resolve_address_posix.c", 
       "src/core/lib/iomgr/resolve_address_windows.c", 
diff --git a/vsprojects/vcxproj/grpc/grpc.vcxproj b/vsprojects/vcxproj/grpc/grpc.vcxproj
index 86ffed90ec74c2a0fc3e9be005990292be3bd608..af4a1df498c303f5655be9e2940545a160b5747b 100644
--- a/vsprojects/vcxproj/grpc/grpc.vcxproj
+++ b/vsprojects/vcxproj/grpc/grpc.vcxproj
@@ -324,11 +324,11 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\iomgr.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\iomgr_internal.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\iomgr_posix.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\polling_entity.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\pollset.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\pollset_set.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\pollset_set_windows.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\pollset_windows.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\pops.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\resolve_address.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\sockaddr.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\sockaddr_posix.h" />
@@ -500,12 +500,12 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\iomgr\iomgr_windows.c">
     </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\iomgr\polling_entity.c">
+    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\iomgr\pollset_set_windows.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\iomgr\pollset_windows.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\iomgr\pops.c">
-    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\iomgr\resolve_address_posix.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\iomgr\resolve_address_windows.c">
diff --git a/vsprojects/vcxproj/grpc/grpc.vcxproj.filters b/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
index de39a78955217571c1ef3db0e9350452dcf3c998..5b41e8497132932bb4df53276e3ae87ea75a464a 100644
--- a/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
@@ -79,13 +79,13 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\iomgr\iomgr_windows.c">
       <Filter>src\core\lib\iomgr</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\iomgr\pollset_set_windows.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\iomgr\polling_entity.c">
       <Filter>src\core\lib\iomgr</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\iomgr\pollset_windows.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\iomgr\pollset_set_windows.c">
       <Filter>src\core\lib\iomgr</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\iomgr\pops.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\iomgr\pollset_windows.c">
       <Filter>src\core\lib\iomgr</Filter>
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\iomgr\resolve_address_posix.c">
@@ -701,6 +701,9 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\iomgr_posix.h">
       <Filter>src\core\lib\iomgr</Filter>
     </ClInclude>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\polling_entity.h">
+      <Filter>src\core\lib\iomgr</Filter>
+    </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\pollset.h">
       <Filter>src\core\lib\iomgr</Filter>
     </ClInclude>
@@ -713,9 +716,6 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\pollset_windows.h">
       <Filter>src\core\lib\iomgr</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\pops.h">
-      <Filter>src\core\lib\iomgr</Filter>
-    </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\resolve_address.h">
       <Filter>src\core\lib\iomgr</Filter>
     </ClInclude>
diff --git a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
index cd534e63b5cc9f2f08d01930ac94da4df7627a83..9fd471da02981c26e51cf022248a5d0c66d41b87 100644
--- a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
+++ b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
@@ -312,11 +312,11 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\iomgr.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\iomgr_internal.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\iomgr_posix.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\polling_entity.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\pollset.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\pollset_set.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\pollset_set_windows.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\pollset_windows.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\pops.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\resolve_address.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\sockaddr.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\sockaddr_posix.h" />
@@ -466,12 +466,12 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\iomgr\iomgr_windows.c">
     </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\iomgr\polling_entity.c">
+    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\iomgr\pollset_set_windows.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\iomgr\pollset_windows.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\iomgr\pops.c">
-    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\iomgr\resolve_address_posix.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\iomgr\resolve_address_windows.c">
diff --git a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
index 2083cacbc60bee91b51788edb28145883ca23351..a55b07946ba38e40f4c3a5a6eedb1bfae82cff0b 100644
--- a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
@@ -82,13 +82,13 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\iomgr\iomgr_windows.c">
       <Filter>src\core\lib\iomgr</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\iomgr\pollset_set_windows.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\iomgr\polling_entity.c">
       <Filter>src\core\lib\iomgr</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\iomgr\pollset_windows.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\iomgr\pollset_set_windows.c">
       <Filter>src\core\lib\iomgr</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\iomgr\pops.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\iomgr\pollset_windows.c">
       <Filter>src\core\lib\iomgr</Filter>
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\iomgr\resolve_address_posix.c">
@@ -599,6 +599,9 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\iomgr_posix.h">
       <Filter>src\core\lib\iomgr</Filter>
     </ClInclude>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\polling_entity.h">
+      <Filter>src\core\lib\iomgr</Filter>
+    </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\pollset.h">
       <Filter>src\core\lib\iomgr</Filter>
     </ClInclude>
@@ -611,9 +614,6 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\pollset_windows.h">
       <Filter>src\core\lib\iomgr</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\pops.h">
-      <Filter>src\core\lib\iomgr</Filter>
-    </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\resolve_address.h">
       <Filter>src\core\lib\iomgr</Filter>
     </ClInclude>