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another errno in a signal handler

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This commit is contained in:
Matthew Flatt 2016-10-13 11:25:27 -06:00
parent 6e2978fe5c
commit a9f2765b4f
1 changed files with 2 additions and 0 deletions
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2
racket/src/racket/src/port.c
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@ -10917,12 +10917,14 @@ void scheme_signal_received_at(void *h)
{
#if defined(FILES_HAVE_FDS)
int put_ext_event_fd = *(int *)h;
int saved_errno = errno;
if (put_ext_event_fd) {
int v;
do {
v = write(put_ext_event_fd, "!", 1);
} while ((v == -1) && (errno == EINTR));
}
errno = saved_errno;
#endif
#if defined(WINDOWS_PROCESSES) || defined(WINDOWS_FILE_HANDLES)
ReleaseSemaphore(*(OS_SEMAPHORE_TYPE *)h, 1, NULL);