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Add a simple signal handler for SIGCHLD on Unix

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This fixes #6631

(cherry picked from commit cff6840ff7)
This commit is contained in:
Hein-Pieter van Braam 2017-02-09 22:01:45 +01:00 committed by Rémi Verschelde
parent 9f536e3962
commit c67b08300a
1 changed files with 15 additions and 0 deletions
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15
drivers/unix/os_unix.cpp
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@ -115,6 +115,13 @@ int OS_Unix::unix_initialize_audio(int p_audio_driver) {
static MemoryPoolStaticMalloc *mempool_static=NULL;
static MemoryPoolDynamicStatic *mempool_dynamic=NULL;
// Very simple signal handler to reap processes where ::execute was called with
// !p_blocking
void handle_sigchld(int sig) {
int saved_errno = errno;
while (waitpid((pid_t)(-1), 0, WNOHANG) > 0) {}
errno = saved_errno;
}
void OS_Unix::initialize_core() {
@ -146,6 +153,14 @@ void OS_Unix::initialize_core() {
ticks_start=0;
ticks_start=get_ticks_usec();
struct sigaction sa;
sa.sa_handler = &handle_sigchld;
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_RESTART | SA_NOCLDSTOP;
if (sigaction(SIGCHLD, &sa, 0) == -1) {
perror("ERROR sigaction() failed:");
}
}
void OS_Unix::finalize_core() {