--- /dev/null
+/*
+
+ silcschedule_i.h.
+
+ Author: Pekka Riikonen <priikone@silcnet.org>
+
+ Copyright (C) 2001 Pekka Riikonen
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+*/
+
+#ifndef SILCSCHEDULE_I_H
+#define SILCSCHEDULE_I_H
+
+#include "silcincludes.h"
+
+/* Schedule FD structure. Includes the file descriptors that the scheduler
+ will listen. This is given as argument to the silc_select function. */
+typedef struct {
+ uint32 fd; /* The file descriptor (or handle on WIN32) */
+ uint16 events; /* Mask of task events, if events is 0 then
+ the fd must be omitted. */
+ uint16 revents; /* Returned events mask */
+} *SilcScheduleFd;
+
+#endif
/* $Id$ */
#include "silcincludes.h"
+#includd "silcschedule_i.h"
/* Our "select()" for WIN32. This mimics the behaviour of select() system
call. It does not call the Winsock's select() though. Its functions
This makes following assumptions, which I don't know whether they
are correct or not:
- o writefds are ignored, if set this will return immediately.
- o exceptfds are ignored totally
+ o SILC_TASK_WRITE is ignored, if set this will return immediately.
o If all arguments except timeout are NULL then this will register
a timeout with SetTimer and will wait just for Windows messages
with WaitMessage.
*/
-int silc_select(int n, fd_set *readfds, fd_set *writefds,
- fd_set *exceptfds, struct timeval *timeout)
+int silc_select(SilcScheduleFd fds, uint32 fds_count, struct timeval *timeout)
{
HANDLE handles[MAXIMUM_WAIT_OBJECTS];
DWORD ready, curtime, timeo;
int nhandles = 0, i;
MSG msg;
- /* Check fd sets (ignoring the exceptfds) */
- if (readfds) {
- for (i = 0; i < n; i++)
- if (FD_ISSET(i, readfds))
- handles[nhandles++] = (HANDLE)i;
+ for (i = 0; i < fds_count; i++) {
+ if (!fds[i].events)
+ continue;
- FD_ZERO(readfds);
- }
+ if (fds[i].events & SILC_TASK_READ)
+ handles[nhandles++] = (HANDLE)i;
+
+ if (fds[i].events & SILC_TASK_WRITE)
+ return 1;
- /* If writefds is set then return immediately */
- if (writefds) {
- for (i = 0; i < n; i++)
- if (FD_ISSET(i, writefds))
- return 1;
+ fds[i].revents = 0;
}
timeo = (timeout ? (timeout->tv_sec * 1000) + (timeout->tv_usec / 1000) :
/* Wait failed with error */
SILC_LOG_WARNING(("WaitForMultipleObjects() failed"));
return -1;
-
} else if (ready >= WAIT_ABANDONED_0 &&
ready < WAIT_ABANDONED_0 + nhandles) {
/* Signal abandoned */
/* Go through all fds even though only one was set. This is to avoid
starvation of high numbered fds. */
ready -= WAIT_OBJECT_0;
- i = 0;
do {
- /* Set the handle to fd set */
- FD_SET((int)handles[ready], readfds);
- i++;
+ for (i = 0; i < fds_count; i++) {
+ if (!fds[i].events)
+ continue;
+
+ if (fds[i].fd == (int)handles[ready]) {
+ fds[i].revents |= SILC_TASK_READ;
+ break;
+ }
+ }
- /* Check the status of the next handle and set it's fd to the fd
+ /* Check the status of the next handle and set its fd to the fd
set if data is available. */
- while (++ready < n)
+ while (++ready < fds_count)
if (WaitForSingleObject(handles[ready], 0) == WAIT_OBJECT_0)
break;
- } while (ready < n);
+ } while (ready < fds_count);
- return i;
+ return i + 1;
}
return -1;