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Pass non-blocking pipes to subprocesses on non-windows platform.

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This commit is contained in:
Calvin Rose 2021-10-14 13:57:51 -05:00
parent a3ec37741a
commit 0774e79e4f
1 changed files with 7 additions and 7 deletions
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14
src/core/ev.c
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@ -2558,15 +2558,16 @@ void janet_ev_sendto_string(JanetStream *stream, JanetString str, void *dest, in
static volatile long PipeSerialNumber;
#endif
/*
* mode = 0: both sides non-blocking.
* mode = 1: only read side non-blocking: write side sent to subprocess
* mode = 2: only write side non-blocking: read side sent to subprocess
*/
int janet_make_pipe(JanetHandle handles[2], int mode) {
#ifdef JANET_WINDOWS
/*
* On windows, the built in CreatePipe function doesn't support overlapped IO
* so we lift from the windows source code and modify for our own version.
*
* mode = 0: both sides non-blocking.
* mode = 1: only read side non-blocking: write side sent to subprocess
* mode = 2: only write side non-blocking: read side sent to subprocess
*/
JanetHandle shandle, chandle;
UCHAR PipeNameBuffer[MAX_PATH];
@ -2616,10 +2617,9 @@ int janet_make_pipe(JanetHandle handles[2], int mode) {
}
return 0;
#else
(void) mode;
if (pipe(handles)) return -1;
if (fcntl(handles[0], F_SETFL, O_NONBLOCK)) goto error;
if (fcntl(handles[1], F_SETFL, O_NONBLOCK)) goto error;
if (mode != 2 && fcntl(handles[0], F_SETFL, O_NONBLOCK)) goto error;
if (mode != 1 && fcntl(handles[1], F_SETFL, O_NONBLOCK)) goto error;
return 0;
error:
close(handles[0]);