cosmopolitan/libc/sysv/consts/msg.h
Justine Tunney 87a6669900
Make more Windows socket fixes and improvements
This change makes send() / sendto() always block on Windows. It's needed
because poll(POLLOUT) doesn't guarantee a socket is immediately writable
on Windows, and it caused rsync to fail because it made that assumption.
The only exception is when a SO_SNDTIMEO is specified which will EAGAIN.

Tests are added confirming MSG_WAITALL and MSG_NOSIGNAL work as expected
on all our supported OSes. Most of the platform-specific MSG_FOO magnums
have been deleted, with the exception of MSG_FASTOPEN. Your --strace log
will now show MSG_FOO flags as symbols rather than numbers.

I've also removed cv_wait_example_test because it's 0.3% flaky with Qemu
under system load since it depends on a process being readily scheduled.
2024-09-18 20:29:42 -07:00

22 lines
623 B
C

#ifndef COSMOPOLITAN_LIBC_SYSV_CONSTS_MSG_H_
#define COSMOPOLITAN_LIBC_SYSV_CONSTS_MSG_H_
COSMOPOLITAN_C_START_
extern const int MSG_DONTWAIT;
extern const int MSG_WAITALL;
extern const int MSG_NOSIGNAL;
extern const int MSG_TRUNC;
extern const int MSG_CTRUNC;
extern const int MSG_FASTOPEN; /* linux only */
#define MSG_OOB 1
#define MSG_PEEK 2
#define MSG_DONTROUTE 4
#define MSG_DONTWAIT MSG_DONTWAIT
#define MSG_NOSIGNAL MSG_NOSIGNAL
#define MSG_WAITALL MSG_WAITALL
#define MSG_TRUNC MSG_TRUNC
#define MSG_CTRUNC MSG_CTRUNC
COSMOPOLITAN_C_END_
#endif /* COSMOPOLITAN_LIBC_SYSV_CONSTS_MSG_H_ */