kc3-lang/libevent/util-internal.h

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• Hash : 9935d5b0
  Author :
  Date : 2009-01-13T21:39:32
  

  Fix win32 compilation.  Surprisingly, unit tests pass too.
  
  svn:r1002
  

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• util-internal.h

• 
  #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
  

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