diff options
| -rw-r--r-- | src/core/lib/iomgr/tcp_posix.cc | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/core/lib/iomgr/tcp_posix.cc b/src/core/lib/iomgr/tcp_posix.cc index ac1e919acb..e40bf81c90 100644 --- a/src/core/lib/iomgr/tcp_posix.cc +++ b/src/core/lib/iomgr/tcp_posix.cc @@ -204,6 +204,13 @@ static void drop_uncovered(grpc_tcp* tcp) { GPR_ASSERT(old_count != 1); } +// gRPC API considers a Write operation to be done the moment it clears ‘flow +// control’ i.e., not necessarily sent on the wire. This means that the +// application MIGHT not call `grpc_completion_queue_next/pluck` in a timely +// manner when its `Write()` API is acked. +// +// We need to ensure that the fd is 'covered' (i.e being monitored by some +// polling thread and progress is made) and hence add it to a backup poller here static void cover_self(grpc_tcp* tcp) { backup_poller* p; gpr_atm old_count = |