diff options
Diffstat (limited to 'win32/select.c')
| -rw-r--r-- | win32/select.c | 176 |
1 files changed, 0 insertions, 176 deletions
diff --git a/win32/select.c b/win32/select.c deleted file mode 100644 index 43de2c2566..0000000000 --- a/win32/select.c +++ /dev/null @@ -1,176 +0,0 @@ -/* - +----------------------------------------------------------------------+ - | PHP Version 5 | - +----------------------------------------------------------------------+ - | Copyright (c) 1997-2005 The PHP Group | - +----------------------------------------------------------------------+ - | This source file is subject to version 3.0 of the PHP license, | - | that is bundled with this package in the file LICENSE, and is | - | available through the world-wide-web at the following url: | - | http://www.php.net/license/3_0.txt. | - | If you did not receive a copy of the PHP license and are unable to | - | obtain it through the world-wide-web, please send a note to | - | license@php.net so we can mail you a copy immediately. | - +----------------------------------------------------------------------+ - | Author: Wez Furlong <wez@thebrainroom.com> | - +----------------------------------------------------------------------+ -*/ - -#include "php.h" -#include "php_network.h" - -#ifdef PHP_WIN32 - -/* $Id$ */ - -/* Win32 select() will only work with sockets, so we roll our own implementation here. - * - If you supply only sockets, this simply passes through to winsock select(). - * - If you supply file handles, there is no way to distinguish between - * ready for read/write or OOB, so any set in which the handle is found will - * be marked as ready. - * - If you supply a mixture of handles and sockets, the system will interleave - * calls between select() and WaitForMultipleObjects(). The time slicing may - * cause this function call to take up to 100 ms longer than you specified. - * - Calling this with NULL sets as a portable way to sleep with sub-second - * accuracy is not supported. - * */ -PHPAPI int php_select(int max_fd, fd_set *rfds, fd_set *wfds, fd_set *efds, struct timeval *tv) -{ - DWORD ms_total, limit; - HANDLE handles[MAXIMUM_WAIT_OBJECTS]; - int handle_slot_to_fd[MAXIMUM_WAIT_OBJECTS]; - int n_handles = 0, i; - fd_set sock_read, sock_write, sock_except; - fd_set aread, awrite, aexcept; - int sock_max_fd = -1; - struct timeval tvslice; - int retcode; - -#define SAFE_FD_ISSET(fd, set) (set != NULL && FD_ISSET(fd, set)) - - /* calculate how long we need to wait in milliseconds */ - if (tv == NULL) { - ms_total = INFINITE; - } else { - ms_total = tv->tv_sec * 1000; - ms_total += tv->tv_usec / 1000; - } - - FD_ZERO(&sock_read); - FD_ZERO(&sock_write); - FD_ZERO(&sock_except); - - /* build an array of handles for non-sockets */ - for (i = 0; i < max_fd; i++) { - if (SAFE_FD_ISSET(i, rfds) || SAFE_FD_ISSET(i, wfds) || SAFE_FD_ISSET(i, efds)) { - handles[n_handles] = (HANDLE)_get_osfhandle(i); - if ((DWORD)handles[n_handles] == 0xffffffff) { - /* socket */ - if (SAFE_FD_ISSET(i, rfds)) { - FD_SET(i, &sock_read); - } - if (SAFE_FD_ISSET(i, wfds)) { - FD_SET(i, &sock_write); - } - if (SAFE_FD_ISSET(i, efds)) { - FD_SET(i, &sock_except); - } - if (i > sock_max_fd) { - sock_max_fd = i; - } - } else { - handle_slot_to_fd[n_handles] = i; - n_handles++; - } - } - } - - if (n_handles == 0) { - /* plain sockets only - let winsock handle the whole thing */ - return select(max_fd, rfds, wfds, efds, tv); - } - - /* mixture of handles and sockets; lets multiplex between - * winsock and waiting on the handles */ - - FD_ZERO(&aread); - FD_ZERO(&awrite); - FD_ZERO(&aexcept); - - limit = GetTickCount() + ms_total; - do { - retcode = 0; - - if (sock_max_fd >= 0) { - /* overwrite the zero'd sets here; the select call - * will clear those that are not active */ - aread = sock_read; - awrite = sock_write; - aexcept = sock_except; - - tvslice.tv_sec = 0; - tvslice.tv_usec = 100000; - - retcode = select(sock_max_fd+1, &aread, &awrite, &aexcept, &tvslice); - } - if (n_handles > 0) { - /* check handles */ - DWORD wret; - - wret = MsgWaitForMultipleObjects(n_handles, handles, FALSE, retcode > 0 ? 0 : 100, QS_ALLEVENTS); - - if (wret == WAIT_TIMEOUT) { - /* set retcode to 0; this is the default. - * select() may have set it to something else, - * in which case we leave it alone, so this branch - * does nothing */ - ; - } else if (wret == WAIT_FAILED) { - if (retcode == 0) { - retcode = -1; - } - } else { - if (retcode < 0) { - retcode = 0; - } - for (i = 0; i < n_handles; i++) { - if (WAIT_OBJECT_0 == WaitForSingleObject(handles[i], 0)) { - if (SAFE_FD_ISSET(handle_slot_to_fd[i], rfds)) { - FD_SET(handle_slot_to_fd[i], &aread); - } - if (SAFE_FD_ISSET(handle_slot_to_fd[i], wfds)) { - FD_SET(handle_slot_to_fd[i], &awrite); - } - if (SAFE_FD_ISSET(handle_slot_to_fd[i], efds)) { - FD_SET(handle_slot_to_fd[i], &aexcept); - } - retcode++; - } - } - } - } - } while (retcode == 0 && (ms_total == INFINITE || GetTickCount() < limit)); - - if (rfds) { - *rfds = aread; - } - if (wfds) { - *wfds = awrite; - } - if (efds) { - *efds = aexcept; - } - - return retcode; -} - -#endif - -/* - * Local variables: - * tab-width: 4 - * c-basic-offset: 4 - * End: - * vim600: noet sw=4 ts=4 fdm=marker - * vim<600: noet sw=4 ts=4 - */ |