grpc_iomgr_shutdown might hang in case of an error (different from ERROR_TIMEOUT) in gpr_cv_wait

[Mos Yud]

Hi,

In case SleepConditionVariableCS(cv, &mu->cs, timeout_max_ms) fails at gpr_cv_wait (sync_windows.cc) because of an error that is not ERROR_TIMEOUT,

the function gpr_cv_wait  will return 0. This might lead to an hang within the loop while (g_root_object.next != &g_root_object) at grpc_iomgr_shutdown in case 

the condition g_root_object.next != &g_root_object is always satisfied and gpr_cv_wait(&g_rcv, &g_mu, short_deadline) always return 0.

Any advice how handle such an error? 

What if i check: if (gpr_time_cmp(gpr_now(GPR_CLOCK_REALTIME), shutdown_deadline) > 0) at grpc_iomgr_shutdown regardless the result of gpr_cv_wait?

Thx,

Moshe.