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More BSD enhancements

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@916 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Mark Spencer
2003-04-27 18:13:11 +00:00
parent b9d6efa20e
commit 6eeee2496b
29 changed files with 216 additions and 155 deletions
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39
include/asterisk/channel.h
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@@ -669,6 +669,45 @@ int ast_autoservice_start(struct ast_channel *chan);
/*! Stop servicing a channel for us... Returns -1 on error or if channel has been hungup */
int ast_autoservice_stop(struct ast_channel *chan);
/* Misc. functions below */
//! Waits for activity on a group of channels
/*!
* \param nfds the maximum number of file descriptors in the sets
* \param rfds file descriptors to check for read availability
* \param wfds file descriptors to check for write availability
* \param efds file descriptors to check for exceptions (OOB data)
* \param tvp timeout while waiting for events
* This is the same as a standard select(), except it guarantees the
* behaviour where the passed struct timeval is updated with how much
* time was not slept while waiting for the specified events
*/
static inline int ast_select(int nfds, fd_set *rfds, fd_set *wfds, fd_set *efds, struct timeval *tvp)
{
#ifdef __linux__
return select(nfds, rfds, wfds, efds, tvp);
#else
if (tvp) {
struct timeval tv, tvstart, tvend, tvlen;
int res;
tv = *tvp;
gettimeofday(&tvstart, NULL);
res = select(nfds, rfds, wfds, efds, tvp);
gettimeofday(&tvend, NULL);
timersub(&tvend, &tvstart, &tvlen);
timersub(&tv, &tvlen, tvp);
if (tvp->tv_sec < 0 || (tvp->tv_sec == 0 && tvp->tv_usec < 0)) {
tvp->tv_sec = 0;
tvp->tv_usec = 0;
}
return res;
}
else
return(nfds, rfds, wfds, efds, NULL);
#endif
}
#ifdef DO_CRASH
#define CRASH do { fprintf(stderr, "!! Forcing immediate crash a-la abort !!\n"); *((int *)0) = 0; } while(0)
#else