mirror of
https://github.com/moparisthebest/curl
synced 2024-11-16 06:25:03 -05:00
52af6e69f0
If curl_multi_fdset() sets maxfd to -1, the socket detection loop is skipped and thus !found_new_socket is no cause for alarm.
270 lines
7.6 KiB
C
270 lines
7.6 KiB
C
/***************************************************************************
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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) 2012, 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 http://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 "test.h"
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#include <assert.h>
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#include "testutil.h"
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#include "memdebug.h"
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#define TEST_HANG_TIMEOUT 5 * 1000
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#define MAX_EASY_HANDLES 3
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/* On Windows INVALID_SOCKET represents an invalid socket, not -1:
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http://msdn.microsoft.com/en-us/library/windows/desktop/ms740516.aspx */
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#ifndef INVALID_SOCKET
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#define INVALID_SOCKET -1
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#endif
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CURL *easy[MAX_EASY_HANDLES];
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curl_socket_t sockets[MAX_EASY_HANDLES];
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int res = 0;
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static size_t callback(char* ptr, size_t size, size_t nmemb, void* data)
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{
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int idx = ((CURL **) data) - easy;
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curl_socket_t sock;
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long lastsock;
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char *output = malloc(size * nmemb + 1);
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memcpy(output, ptr, size * nmemb);
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output[size * nmemb] = '\0';
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fprintf(stdout, "%s", output);
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free(output);
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res = curl_easy_getinfo(easy[idx], CURLINFO_LASTSOCKET, &lastsock);
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if (CURLE_OK != res) {
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fprintf(stderr, "Error reading CURLINFO_LASTSOCKET\n");
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return 0;
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}
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if (lastsock == -1) {
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sock = INVALID_SOCKET;
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}
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else {
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sock = (curl_socket_t)lastsock;
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}
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/* sock will only be set for NTLM requests; for others it is -1 */
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if (sock != INVALID_SOCKET) {
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if (sockets[idx] == INVALID_SOCKET) {
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/* Data was written for this request before the socket was detected by
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multi_fdset. Record the socket now. */
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sockets[idx] = sock;
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}
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else if (sock != sockets[idx]) {
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fprintf(stderr, "Handle %d started on socket %d and moved to %d\n", idx,
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sockets[idx], sock);
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res = TEST_ERR_MAJOR_BAD;
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return 0;
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}
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}
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return size * nmemb;
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}
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enum HandleState {
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ReadyForNewHandle,
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NeedSocketForNewHandle,
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NoMoreHandles
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};
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int test(char *url)
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{
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CURLM *multi = NULL;
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int running;
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int i, j;
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int num_handles = 0;
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enum HandleState state = ReadyForNewHandle;
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char* full_url = malloc(strlen(url) + 4 + 1);
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start_test_timing();
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if (!full_url) {
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fprintf(stderr, "Not enough memory for full url\n");
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return CURLE_OUT_OF_MEMORY;
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}
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for (i = 0; i < MAX_EASY_HANDLES; ++i) {
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easy[i] = NULL;
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sockets[i] = -1;
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}
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res = 0;
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res_global_init(CURL_GLOBAL_ALL);
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if(res) {
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return res;
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}
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multi_init(multi);
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for(;;) {
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struct timeval interval;
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fd_set fdread;
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fd_set fdwrite;
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fd_set fdexcep;
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long timeout = -99;
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curl_socket_t curfd, maxfd = INVALID_SOCKET;
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bool found_new_socket = FALSE;
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/* Start a new handle if we aren't at the max */
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if (state == ReadyForNewHandle) {
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easy_init(easy[num_handles]);
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if (num_handles % 3 == 2) {
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sprintf(full_url, "%s0200", url);
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easy_setopt(easy[num_handles], CURLOPT_HTTPAUTH, CURLAUTH_NTLM);
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} else {
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sprintf(full_url, "%s0100", url);
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easy_setopt(easy[num_handles], CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
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}
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easy_setopt(easy[num_handles], CURLOPT_FRESH_CONNECT, 1L);
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easy_setopt(easy[num_handles], CURLOPT_URL, full_url);
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easy_setopt(easy[num_handles], CURLOPT_VERBOSE, 1L);
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easy_setopt(easy[num_handles], CURLOPT_HTTPGET, 1L);
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easy_setopt(easy[num_handles], CURLOPT_USERPWD, "testuser:testpass");
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easy_setopt(easy[num_handles], CURLOPT_WRITEFUNCTION, callback);
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easy_setopt(easy[num_handles], CURLOPT_WRITEDATA, easy + num_handles);
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easy_setopt(easy[num_handles], CURLOPT_HEADER, 1L);
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multi_add_handle(multi, easy[num_handles]);
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num_handles += 1;
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state = NeedSocketForNewHandle;
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}
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multi_perform(multi, &running);
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if (0 != res)
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break;
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abort_on_test_timeout();
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if(!running && state == NoMoreHandles)
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break; /* done */
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FD_ZERO(&fdread);
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FD_ZERO(&fdwrite);
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FD_ZERO(&fdexcep);
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multi_fdset(multi, &fdread, &fdwrite, &fdexcep, (int *)&maxfd);
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/* At this point, maxfd is guaranteed to be greater or equal than -1. */
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/* Any socket which is new in fdread is associated with the new handle */
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for (curfd = 0; curfd <= maxfd; ++curfd) {
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bool socket_exists = FALSE;
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if (!FD_ISSET(curfd, &fdread)) {
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continue;
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}
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/* Check if this socket was already detected for an earlier handle (or
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for this handle, num_handles-1, in the callback */
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for (j = 0; j < num_handles; ++j) {
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if (sockets[j] == curfd) {
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socket_exists = TRUE;
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break;
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}
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}
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if (socket_exists) {
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continue;
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}
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if (found_new_socket || state != NeedSocketForNewHandle) {
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fprintf(stderr, "Unexpected new socket\n");
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res = TEST_ERR_MAJOR_BAD;
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goto test_cleanup;
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}
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/* Now we know the socket is for the most recent handle, num_handles-1 */
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if (sockets[num_handles-1] != INVALID_SOCKET) {
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/* A socket for this handle was already detected in the callback; if it
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matched socket_exists should be true and we would never get here */
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assert(curfd != sockets[num_handles-1]);
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fprintf(stderr, "Handle %d wrote to socket %d then detected on %d\n",
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num_handles-1, sockets[num_handles-1], curfd);
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res = TEST_ERR_MAJOR_BAD;
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goto test_cleanup;
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}
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else {
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sockets[num_handles-1] = curfd;
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found_new_socket = TRUE;
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/* continue to make sure there's only one new handle */
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}
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}
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if (state == NeedSocketForNewHandle) {
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if(maxfd != -1 && !found_new_socket) {
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fprintf(stderr, "Warning: socket did not open immediately for new "
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"handle (trying again)\n");
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continue;
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}
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state = num_handles < MAX_EASY_HANDLES ? ReadyForNewHandle
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: NoMoreHandles;
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}
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multi_timeout(multi, &timeout);
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/* At this point, timeout is guaranteed to be greater or equal than -1. */
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fprintf(stderr, "%s:%d num_handles %d timeout %ld\n",
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__FILE__, __LINE__, num_handles, timeout);
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if(timeout != -1L) {
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interval.tv_sec = timeout/1000;
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interval.tv_usec = (timeout%1000)*1000;
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}
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else {
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interval.tv_sec = TEST_HANG_TIMEOUT/1000+1;
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interval.tv_usec = 0;
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/* if there's no timeout and we get here on the last handle, we may
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already have read the last part of the stream so waiting makes no
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sense */
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if(!running && num_handles == MAX_EASY_HANDLES) {
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break;
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}
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}
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select_test(maxfd+1, &fdread, &fdwrite, &fdexcep, &interval);
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abort_on_test_timeout();
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}
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test_cleanup:
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for (i = 0; i < MAX_EASY_HANDLES; ++i) {
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if (easy[i]) {
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if (multi) {
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curl_multi_remove_handle(multi, easy[i]);
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}
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curl_easy_cleanup(easy[i]);
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}
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}
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if (multi) {
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curl_multi_cleanup(multi);
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}
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curl_global_cleanup();
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if (full_url) {
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free(full_url);
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}
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return res;
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}
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