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When EWOULDBLOCK is not EAGAIN, treat it as equivalent to it

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Acording to http://stackoverflow.com/questions/7003234/which-systems-define-eagain-and-ewouldblock-as-different-values
there are some older unixes that distinguish these error.s
This commit is contained in:
Nick Mathewson 2013-01-11 16:37:34 -08:00
parent b452a43450
commit bf7a0ff268
2 changed files with 11 additions and 3 deletions
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2
event.c
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@ -2157,7 +2157,7 @@ evthread_notify_base_default(struct event_base *base)
#else
r = write(base->th_notify_fd[1], buf, 1);
#endif
return (r < 0 && errno != EAGAIN) ? -1 : 0;
return (r < 0 && ! EVUTIL_ERR_IS_EAGAIN(errno)) ? -1 : 0;
}
#ifdef EVENT__HAVE_EVENTFD

12
util-internal.h
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@ -79,15 +79,23 @@ extern "C" {
#ifndef _WIN32
#if EAGAIN == EWOULDBLOCK
#define EVUTIL_ERR_IS_EAGAIN(e) \
((e) == EAGAIN)
#else
#define EVUTIL_ERR_IS_EAGAIN(e) \
((e) == EAGAIN || (e) == EWOULDBLOCK)
#endif
/* True iff e is an error that means a read/write operation can be retried. */
#define EVUTIL_ERR_RW_RETRIABLE(e) \
((e) == EINTR || (e) == EAGAIN)
((e) == EINTR || EVUTIL_ERR_IS_EAGAIN(e))
/* True iff e is an error that means an connect can be retried. */
#define EVUTIL_ERR_CONNECT_RETRIABLE(e) \
((e) == EINTR || (e) == EINPROGRESS)
/* True iff e is an error that means a accept can be retried. */
#define EVUTIL_ERR_ACCEPT_RETRIABLE(e) \
((e) == EINTR || (e) == EAGAIN || (e) == ECONNABORTED)
((e) == EINTR || EVUTIL_ERR_IS_EAGAIN(e) || (e) == ECONNABORTED)
/* True iff e is an error that means the connection was refused */
#define EVUTIL_ERR_CONNECT_REFUSED(e) \