86 lines
2.5 KiB
Groff
86 lines
2.5 KiB
Groff
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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) 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.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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.\" * SPDX-License-Identifier: curl
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.\" *
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.\" **************************************************************************
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.\"
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.TH CURLMOPT_TIMERDATA 3 "17 Jun 2014" libcurl libcurl
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.SH NAME
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CURLMOPT_TIMERDATA \- custom pointer to pass to timer callback
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.SH SYNOPSIS
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.nf
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#include <curl/curl.h>
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CURLMcode curl_multi_setopt(CURLM *handle, CURLMOPT_TIMERDATA, void *pointer);
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.SH DESCRIPTION
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A data \fBpointer\fP to pass to the timer callback set with the
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\fICURLMOPT_TIMERFUNCTION(3)\fP option.
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This pointer is not touched by libcurl but is only be passed in to the timer
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callbacks's \fBclientp\fP argument.
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.SH DEFAULT
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NULL
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.SH PROTOCOLS
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All
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.SH EXAMPLE
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.nf
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static gboolean timeout_cb(gpointer user_data)
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{
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int running;
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if(user_data) {
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g_free(user_data);
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curl_multi_setopt(curl_handle, CURLMOPT_TIMERDATA, NULL);
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}
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curl_multi_socket_action(multi, CURL_SOCKET_TIMEOUT, 0, &running);
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return G_SOURCE_REMOVE;
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}
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static int timerfunc(CURLM *multi, long timeout_ms, void *clientp)
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{
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guint *id = clientp;
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if(id)
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g_source_remove(*id);
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/* -1 means we should just delete our timer. */
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if(timeout_ms == -1) {
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g_free(id);
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id = NULL;
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}
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else {
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if(!id)
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id = g_new(guint, 1);
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*id = g_timeout_add(timeout_ms, timeout_cb, id);
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}
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current_timer = id;
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return 0;
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}
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curl_multi_setopt(multi, CURLMOPT_TIMERFUNCTION, timerfunc);
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.fi
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.SH AVAILABILITY
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Added in 7.16.0
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.SH RETURN VALUE
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Returns CURLM_OK if the option is supported, and CURLM_UNKNOWN_OPTION if not.
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.SH "SEE ALSO"
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.BR CURLMOPT_TIMERFUNCTION (3),
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.BR CURLMOPT_SOCKETFUNCTION (3)
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