/*
- $Id: socket.c,v 1.6 2010-01-05 19:05:52 franklahm Exp $
Copyright (c) 2009 Frank Lahm <franklahm@gmail.com>
This program is free software; you can redistribute it and/or modify
#include <stdlib.h>
#include <string.h>
#include <errno.h>
+#include <sys/time.h>
+#include <time.h>
#include <atalk/logger.h>
{
size_t stored;
ssize_t len;
- struct timeval tv;
+ struct timeval now, end, tv;
fd_set rfds;
int ret;
return -1;
}
+ /* Calculate end time */
+ (void)gettimeofday(&now, NULL);
+ end = now;
+ end.tv_sec += timeout;
+
while (stored < length) {
len = read(socket, (char *) data + stored, length - stored);
if (len == -1) {
case EINTR:
continue;
case EAGAIN:
- tv.tv_usec = 0;
- tv.tv_sec = timeout;
-
FD_ZERO(&rfds);
FD_SET(socket, &rfds);
+ tv.tv_usec = 0;
+ tv.tv_sec = timeout;
+
while ((ret = select(socket + 1, &rfds, NULL, NULL, &tv)) < 1) {
switch (ret) {
case 0:
- LOG(log_warning, logtype_cnid, "select timeout 1s");
+ LOG(log_warning, logtype_afpd, "select timeout %d s", timeout);
goto exit;
default: /* -1 */
- LOG(log_error, logtype_cnid, "select: %s", strerror(errno));
+ if (errno == EINTR) {
+ (void)gettimeofday(&now, NULL);
+ if (now.tv_sec >= end.tv_sec && now.tv_usec >= end.tv_usec) {
+ LOG(log_warning, logtype_afpd, "select timeout %d s", timeout);
+ goto exit;
+ }
+ if (now.tv_usec > end.tv_usec) {
+ tv.tv_usec = 1000000 + end.tv_usec - now.tv_usec;
+ tv.tv_sec = end.tv_sec - now.tv_sec - 1;
+ } else {
+ tv.tv_usec = end.tv_usec - now.tv_usec;
+ tv.tv_sec = end.tv_sec - now.tv_sec;
+ }
+ FD_ZERO(&rfds);
+ FD_SET(socket, &rfds);
+ continue;
+ }
+ LOG(log_error, logtype_afpd, "select: %s", strerror(errno));
stored = -1;
goto exit;
}
- }
+ } /* while (select) */
continue;
- }
- LOG(log_error, logtype_cnid, "read: %s", strerror(errno));
+ } /* switch (errno) */
+ LOG(log_error, logtype_afpd, "read: %s", strerror(errno));
stored = -1;
goto exit;
- }
+ } /* (len == -1) */
else if (len > 0)
stored += len;
else
break;
- }
+ } /* while (stored < length) */
exit:
if (setnonblocking) {
return -1;
}
+ if (len == -1 && stored == 0)
+ /* last read or select got an error and we haven't got yet anything => return -1*/
+ return -1;
return stored;
}