mirror of
https://github.com/libevent/libevent.git
synced 2025-01-09 00:56:20 +08:00
54 lines
1.5 KiB
C
54 lines
1.5 KiB
C
|
|
#ifndef _EVENT_UTIL_INTERNAL_H
|
|
#define _EVENT_UTIL_INTERNAL_H
|
|
|
|
#include "event-config.h"
|
|
#include <errno.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/* Internal use only: macros to match patterns of error codes in a
|
|
cross-platform way. We need these macros because of two historical
|
|
reasons: first, nonblocking IO functions are generally written to give an
|
|
error on the "blocked now, try later" case, so sometimes an error from a
|
|
read, write, connect, or accept means "no error; just wait for more
|
|
data," and we need to look at the error code. Second, Windows defines
|
|
a different set of error codes for sockets. */
|
|
|
|
#ifndef WIN32
|
|
|
|
/* 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)
|
|
/* True iff e is an error that means an accept can be retried. */
|
|
#define EVUTIL_ERR_CONNECT_RETRIABLE(e) \
|
|
((e) == EINTR || (e) == EINPROGRESS)
|
|
/* True iff e is an error that means a connect can be retried. */
|
|
#define EVUTIL_ERR_ACCEPT_RETRIABLE(e) \
|
|
((e) == EINTR || (e) == EAGAIN || (e) == ECONNABORTED)
|
|
|
|
#else
|
|
|
|
#define EVUTIL_ERR_RW_RETRIABLE(e) \
|
|
((e) == WSAEWOULDBLOCK || \
|
|
(e) == WSAEINTR)
|
|
|
|
#define EVUTIL_ERR_CONNECT_RETRIABLE(e) \
|
|
((e) == WSAEWOULDBLOCK || \
|
|
(e) == WSAEINTR || \
|
|
(e) == WSAEINPROGRESS || \
|
|
(e) == WSAEINVAL))
|
|
|
|
#define EVUTIL_ERR_ACCEPT_RETRIABLE(e) \
|
|
EVUTIL_ERR_RW_RETRIABLE(e)
|
|
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif
|