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115 lines
3.3 KiB
115 lines
3.3 KiB
#ifndef HEADER_CURL_SELECT_H |
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#define HEADER_CURL_SELECT_H |
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/*************************************************************************** |
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* _ _ ____ _ |
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* Project ___| | | | _ \| | |
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* / __| | | | |_) | | |
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* | (__| |_| | _ <| |___ |
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* \___|\___/|_| \_\_____| |
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* |
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* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al. |
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* |
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* This software is licensed as described in the file COPYING, which |
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* you should have received as part of this distribution. The terms |
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* are also available at https://curl.haxx.se/docs/copyright.html. |
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* |
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell |
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* copies of the Software, and permit persons to whom the Software is |
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* furnished to do so, under the terms of the COPYING file. |
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* |
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY |
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* KIND, either express or implied. |
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* |
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***************************************************************************/ |
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#include "curl_setup.h" |
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#ifdef HAVE_SYS_POLL_H |
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#include <sys/poll.h> |
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#elif defined(HAVE_POLL_H) |
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#include <poll.h> |
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#endif |
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/* |
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* Definition of pollfd struct and constants for platforms lacking them. |
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*/ |
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#if !defined(HAVE_STRUCT_POLLFD) && \ |
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!defined(HAVE_SYS_POLL_H) && \ |
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!defined(HAVE_POLL_H) |
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#define POLLIN 0x01 |
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#define POLLPRI 0x02 |
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#define POLLOUT 0x04 |
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#define POLLERR 0x08 |
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#define POLLHUP 0x10 |
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#define POLLNVAL 0x20 |
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struct pollfd |
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{ |
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curl_socket_t fd; |
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short events; |
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short revents; |
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}; |
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#endif |
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#ifndef POLLRDNORM |
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#define POLLRDNORM POLLIN |
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#endif |
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#ifndef POLLWRNORM |
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#define POLLWRNORM POLLOUT |
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#endif |
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#ifndef POLLRDBAND |
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#define POLLRDBAND POLLPRI |
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#endif |
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/* there are three CSELECT defines that are defined in the public header that |
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are exposed to users, but this *IN2 bit is only ever used internally and |
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therefore defined here */ |
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#define CURL_CSELECT_IN2 (CURL_CSELECT_ERR << 1) |
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int Curl_socket_check(curl_socket_t readfd, curl_socket_t readfd2, |
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curl_socket_t writefd, |
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time_t timeout_ms); |
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#define SOCKET_READABLE(x,z) \ |
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Curl_socket_check(x, CURL_SOCKET_BAD, CURL_SOCKET_BAD, z) |
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#define SOCKET_WRITABLE(x,z) \ |
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Curl_socket_check(CURL_SOCKET_BAD, CURL_SOCKET_BAD, x, z) |
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int Curl_poll(struct pollfd ufds[], unsigned int nfds, int timeout_ms); |
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/* On non-DOS and non-Winsock platforms, when Curl_ack_eintr is set, |
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* EINTR condition is honored and function might exit early without |
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* awaiting full timeout. Otherwise EINTR will be ignored and full |
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* timeout will elapse. */ |
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extern int Curl_ack_eintr; |
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int Curl_wait_ms(int timeout_ms); |
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#ifdef TPF |
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int tpf_select_libcurl(int maxfds, fd_set* reads, fd_set* writes, |
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fd_set* excepts, struct timeval* tv); |
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#endif |
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/* Winsock and TPF sockets are not in range [0..FD_SETSIZE-1], which |
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unfortunately makes it impossible for us to easily check if they're valid |
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*/ |
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#if defined(USE_WINSOCK) || defined(TPF) |
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#define VALID_SOCK(x) 1 |
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#define VERIFY_SOCK(x) Curl_nop_stmt |
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#else |
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#define VALID_SOCK(s) (((s) >= 0) && ((s) < FD_SETSIZE)) |
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#define VERIFY_SOCK(x) do { \ |
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if(!VALID_SOCK(x)) { \ |
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SET_SOCKERRNO(EINVAL); \ |
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return -1; \ |
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} \ |
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} WHILE_FALSE |
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#endif |
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#endif /* HEADER_CURL_SELECT_H */ |
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