From 84d2e479b6ef4a4e20499fb003f9906f1c3c12ee Mon Sep 17 00:00:00 2001
From: David Garcia Quintas <dgq@google.com>
Date: Wed, 29 Jun 2016 14:53:46 -0700
Subject: [PATCH] implemented eventfd_check_availability
---
src/core/lib/iomgr/wakeup_fd_eventfd.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/src/core/lib/iomgr/wakeup_fd_eventfd.c b/src/core/lib/iomgr/wakeup_fd_eventfd.c
index 667b4a5f90..95f6102330 100644
--- a/src/core/lib/iomgr/wakeup_fd_eventfd.c
+++ b/src/core/lib/iomgr/wakeup_fd_eventfd.c
@@ -84,8 +84,10 @@ static void eventfd_destroy(grpc_wakeup_fd* fd_info) {
}
static int eventfd_check_availability(void) {
- /* TODO(klempner): Actually check if eventfd is available */
- return 1;
+ const int efd = eventfd(0, 0);
+ const int is_available = efd >= 0;
+ if (is_available) close(efd);
+ return is_available;
}
const grpc_wakeup_fd_vtable grpc_specialized_wakeup_fd_vtable = {
--
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