| /* |
| This file is part of libmicrohttpd |
| Copyright (C) 2013, 2015 Christian Grothoff |
| |
| libmicrohttpd 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, or (at your |
| option) any later version. |
| |
| libmicrohttpd 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. |
| |
| You should have received a copy of the GNU General Public License |
| along with libmicrohttpd; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. |
| */ |
| /** |
| * @file test_quiesce.c |
| * @brief Testcase for libmicrohttpd quiescing |
| * @author Christian Grothoff |
| */ |
| |
| #include "MHD_config.h" |
| #include "platform.h" |
| #include "platform_interface.h" |
| #include <curl/curl.h> |
| #include <microhttpd.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <time.h> |
| #include <sys/types.h> |
| #include <pthread.h> |
| |
| #ifndef WINDOWS |
| #include <unistd.h> |
| #include <sys/socket.h> |
| #endif |
| |
| #if defined(CPU_COUNT) && (CPU_COUNT+0) < 2 |
| #undef CPU_COUNT |
| #endif |
| #if !defined(CPU_COUNT) |
| #define CPU_COUNT 2 |
| #endif |
| |
| |
| struct CBC |
| { |
| char *buf; |
| size_t pos; |
| size_t size; |
| }; |
| |
| |
| static size_t |
| copyBuffer (void *ptr, size_t size, size_t nmemb, void *ctx) |
| { |
| struct CBC *cbc = ctx; |
| |
| if (cbc->pos + size * nmemb > cbc->size) |
| return 0; /* overflow */ |
| memcpy (&cbc->buf[cbc->pos], ptr, size * nmemb); |
| cbc->pos += size * nmemb; |
| return size * nmemb; |
| } |
| |
| |
| static int |
| ahc_echo (void *cls, |
| struct MHD_Connection *connection, |
| const char *url, |
| const char *method, |
| const char *version, |
| const char *upload_data, size_t *upload_data_size, |
| void **unused) |
| { |
| static int ptr; |
| const char *me = cls; |
| struct MHD_Response *response; |
| int ret; |
| |
| if (0 != strcmp (me, method)) |
| return MHD_NO; /* unexpected method */ |
| if (&ptr != *unused) |
| { |
| *unused = &ptr; |
| return MHD_YES; |
| } |
| *unused = NULL; |
| response = MHD_create_response_from_buffer (strlen (url), |
| (void *) url, |
| MHD_RESPMEM_MUST_COPY); |
| ret = MHD_queue_response (connection, MHD_HTTP_OK, response); |
| MHD_destroy_response (response); |
| if (ret == MHD_NO) |
| abort (); |
| return ret; |
| } |
| |
| |
| static void |
| request_completed (void *cls, struct MHD_Connection *connection, |
| void **con_cls, enum MHD_RequestTerminationCode code) |
| { |
| int *done = (int *)cls; |
| *done = 1; |
| } |
| |
| |
| static void * |
| ServeOneRequest(void *param) |
| { |
| struct MHD_Daemon *d; |
| fd_set rs; |
| fd_set ws; |
| fd_set es; |
| MHD_socket fd, max; |
| time_t start; |
| struct timeval tv; |
| int done = 0; |
| |
| fd = (MHD_socket) (intptr_t) param; |
| |
| d = MHD_start_daemon (MHD_USE_DEBUG, |
| 1082, NULL, NULL, &ahc_echo, "GET", |
| MHD_OPTION_LISTEN_SOCKET, fd, |
| MHD_OPTION_NOTIFY_COMPLETED, &request_completed, &done, |
| MHD_OPTION_END); |
| if (d == NULL) |
| return "MHD_start_daemon() failed"; |
| |
| start = time (NULL); |
| while ((time (NULL) - start < 5) && done == 0) |
| { |
| max = 0; |
| FD_ZERO (&rs); |
| FD_ZERO (&ws); |
| FD_ZERO (&es); |
| if (MHD_YES != MHD_get_fdset (d, &rs, &ws, &es, &max)) |
| { |
| MHD_stop_daemon (d); |
| MHD_socket_close_(fd); |
| return "MHD_get_fdset() failed"; |
| } |
| tv.tv_sec = 0; |
| tv.tv_usec = 1000; |
| MHD_SYS_select_ (max + 1, &rs, &ws, &es, &tv); |
| MHD_run (d); |
| } |
| MHD_stop_daemon (d); |
| MHD_socket_close_(fd); |
| return NULL; |
| } |
| |
| |
| static CURL * |
| setupCURL (void *cbc) |
| { |
| CURL *c; |
| |
| c = curl_easy_init (); |
| curl_easy_setopt (c, CURLOPT_URL, "http://127.0.0.1:11080/hello_world"); |
| curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, ©Buffer); |
| curl_easy_setopt (c, CURLOPT_WRITEDATA, cbc); |
| curl_easy_setopt (c, CURLOPT_FAILONERROR, 1); |
| curl_easy_setopt (c, CURLOPT_TIMEOUT_MS, 150L); |
| curl_easy_setopt (c, CURLOPT_CONNECTTIMEOUT_MS, 150L); |
| curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0); |
| /* NOTE: use of CONNECTTIMEOUT without also |
| setting NOSIGNAL results in really weird |
| crashes on my system!*/ |
| curl_easy_setopt (c, CURLOPT_NOSIGNAL, 1); |
| |
| return c; |
| } |
| |
| |
| static int |
| testGet (int type, int pool_count, int poll_flag) |
| { |
| struct MHD_Daemon *d; |
| CURL *c; |
| char buf[2048]; |
| struct CBC cbc; |
| CURLcode errornum; |
| MHD_socket fd; |
| pthread_t thrd; |
| const char *thrdRet; |
| |
| cbc.buf = buf; |
| cbc.size = 2048; |
| cbc.pos = 0; |
| if (pool_count > 0) { |
| d = MHD_start_daemon (type | MHD_USE_DEBUG | MHD_USE_PIPE_FOR_SHUTDOWN | poll_flag, |
| 11080, NULL, NULL, &ahc_echo, "GET", |
| MHD_OPTION_THREAD_POOL_SIZE, pool_count, MHD_OPTION_END); |
| |
| } else { |
| d = MHD_start_daemon (type | MHD_USE_DEBUG | MHD_USE_PIPE_FOR_SHUTDOWN | poll_flag, |
| 11080, NULL, NULL, &ahc_echo, "GET", MHD_OPTION_END); |
| } |
| if (d == NULL) |
| return 1; |
| |
| c = setupCURL(&cbc); |
| |
| if (CURLE_OK != (errornum = curl_easy_perform (c))) |
| { |
| fprintf (stderr, |
| "curl_easy_perform failed: `%s'\n", |
| curl_easy_strerror (errornum)); |
| curl_easy_cleanup (c); |
| MHD_stop_daemon (d); |
| return 2; |
| } |
| |
| if (cbc.pos != strlen ("/hello_world")) { |
| curl_easy_cleanup (c); |
| MHD_stop_daemon (d); |
| return 4; |
| } |
| if (0 != strncmp ("/hello_world", cbc.buf, strlen ("/hello_world"))) { |
| curl_easy_cleanup (c); |
| MHD_stop_daemon (d); |
| return 8; |
| } |
| |
| fd = MHD_quiesce_daemon (d); |
| if (0 != pthread_create(&thrd, NULL, &ServeOneRequest, (void*)(intptr_t) fd)) |
| { |
| fprintf (stderr, "pthread_create failed\n"); |
| curl_easy_cleanup (c); |
| MHD_stop_daemon (d); |
| return 16; |
| } |
| |
| cbc.pos = 0; |
| if (CURLE_OK != (errornum = curl_easy_perform (c))) |
| { |
| fprintf (stderr, |
| "curl_easy_perform failed: `%s'\n", |
| curl_easy_strerror (errornum)); |
| curl_easy_cleanup (c); |
| MHD_stop_daemon (d); |
| return 2; |
| } |
| |
| if (0 != pthread_join(thrd, (void**)&thrdRet)) |
| { |
| fprintf (stderr, "pthread_join failed\n"); |
| curl_easy_cleanup (c); |
| MHD_stop_daemon (d); |
| return 16; |
| } |
| if (NULL != thrdRet) |
| { |
| fprintf (stderr, "ServeOneRequest() error: %s\n", thrdRet); |
| curl_easy_cleanup (c); |
| MHD_stop_daemon (d); |
| return 16; |
| } |
| |
| if (cbc.pos != strlen ("/hello_world")) |
| { |
| fprintf(stderr, "%s\n", cbc.buf); |
| curl_easy_cleanup (c); |
| MHD_stop_daemon (d); |
| MHD_socket_close_(fd); |
| return 4; |
| } |
| if (0 != strncmp ("/hello_world", cbc.buf, strlen ("/hello_world"))) |
| { |
| fprintf(stderr, "%s\n", cbc.buf); |
| curl_easy_cleanup (c); |
| MHD_stop_daemon (d); |
| MHD_socket_close_(fd); |
| return 8; |
| } |
| |
| /* at this point, the forked server quit, and the new |
| * server has quiesced, so new requests should fail |
| */ |
| if (CURLE_OK == (errornum = curl_easy_perform (c))) |
| { |
| fprintf (stderr, "curl_easy_perform should fail\n"); |
| curl_easy_cleanup (c); |
| MHD_stop_daemon (d); |
| MHD_socket_close_(fd); |
| return 2; |
| } |
| curl_easy_cleanup (c); |
| MHD_stop_daemon (d); |
| MHD_socket_close_(fd); |
| |
| return 0; |
| } |
| |
| |
| static int |
| testExternalGet () |
| { |
| struct MHD_Daemon *d; |
| CURL *c; |
| char buf[2048]; |
| struct CBC cbc; |
| CURLM *multi; |
| CURLMcode mret; |
| fd_set rs; |
| fd_set ws; |
| fd_set es; |
| MHD_socket max; |
| int running; |
| struct CURLMsg *msg; |
| time_t start; |
| struct timeval tv; |
| int i; |
| MHD_socket fd; |
| |
| multi = NULL; |
| cbc.buf = buf; |
| cbc.size = 2048; |
| cbc.pos = 0; |
| d = MHD_start_daemon (MHD_USE_DEBUG, |
| 11080, NULL, NULL, &ahc_echo, "GET", MHD_OPTION_END); |
| if (d == NULL) |
| return 256; |
| c = setupCURL(&cbc); |
| |
| multi = curl_multi_init (); |
| if (multi == NULL) |
| { |
| curl_easy_cleanup (c); |
| MHD_stop_daemon (d); |
| return 512; |
| } |
| mret = curl_multi_add_handle (multi, c); |
| if (mret != CURLM_OK) |
| { |
| curl_multi_cleanup (multi); |
| curl_easy_cleanup (c); |
| MHD_stop_daemon (d); |
| return 1024; |
| } |
| |
| for (i = 0; i < 2; i++) { |
| start = time (NULL); |
| while ((time (NULL) - start < 5) && (multi != NULL)) |
| { |
| max = 0; |
| FD_ZERO (&rs); |
| FD_ZERO (&ws); |
| FD_ZERO (&es); |
| curl_multi_perform (multi, &running); |
| mret = curl_multi_fdset (multi, &rs, &ws, &es, &max); |
| if (mret != CURLM_OK) |
| { |
| curl_multi_remove_handle (multi, c); |
| curl_multi_cleanup (multi); |
| curl_easy_cleanup (c); |
| MHD_stop_daemon (d); |
| return 2048; |
| } |
| if (MHD_YES != MHD_get_fdset (d, &rs, &ws, &es, &max)) |
| { |
| curl_multi_remove_handle (multi, c); |
| curl_multi_cleanup (multi); |
| curl_easy_cleanup (c); |
| MHD_stop_daemon (d); |
| return 4096; |
| } |
| tv.tv_sec = 0; |
| tv.tv_usec = 1000; |
| select (max + 1, &rs, &ws, &es, &tv); |
| curl_multi_perform (multi, &running); |
| if (running == 0) |
| { |
| msg = curl_multi_info_read (multi, &running); |
| if (msg == NULL) |
| break; |
| if (msg->msg == CURLMSG_DONE) |
| { |
| if (i == 0 && msg->data.result != CURLE_OK) |
| printf ("%s failed at %s:%d: `%s'\n", |
| "curl_multi_perform", |
| __FILE__, |
| __LINE__, curl_easy_strerror (msg->data.result)); |
| else if (i == 1 && msg->data.result == CURLE_OK) |
| printf ("%s should have failed at %s:%d\n", |
| "curl_multi_perform", |
| __FILE__, |
| __LINE__); |
| curl_multi_remove_handle (multi, c); |
| curl_multi_cleanup (multi); |
| curl_easy_cleanup (c); |
| c = NULL; |
| multi = NULL; |
| } |
| } |
| MHD_run (d); |
| } |
| |
| if (i == 0) { |
| /* quiesce the daemon on the 1st iteration, so the 2nd should fail */ |
| fd = MHD_quiesce_daemon(d); |
| if (MHD_INVALID_SOCKET == fd) |
| abort (); |
| MHD_socket_close_ (fd); |
| c = setupCURL (&cbc); |
| multi = curl_multi_init (); |
| mret = curl_multi_add_handle (multi, c); |
| } |
| } |
| if (multi != NULL) |
| { |
| curl_multi_remove_handle (multi, c); |
| curl_easy_cleanup (c); |
| curl_multi_cleanup (multi); |
| } |
| MHD_stop_daemon (d); |
| if (cbc.pos != strlen ("/hello_world")) |
| return 8192; |
| if (0 != strncmp ("/hello_world", cbc.buf, strlen ("/hello_world"))) |
| return 16384; |
| return 0; |
| } |
| |
| |
| int |
| main (int argc, char *const *argv) |
| { |
| unsigned int errorCount = 0; |
| |
| if (0 != curl_global_init (CURL_GLOBAL_WIN32)) |
| return 2; |
| errorCount += testGet (MHD_USE_SELECT_INTERNALLY, 0, 0); |
| errorCount += testGet (MHD_USE_THREAD_PER_CONNECTION, 0, 0); |
| errorCount += testGet (MHD_USE_SELECT_INTERNALLY, CPU_COUNT, 0); |
| errorCount += testExternalGet (); |
| if (MHD_YES == MHD_is_feature_supported(MHD_FEATURE_POLL)) |
| { |
| errorCount += testGet(MHD_USE_SELECT_INTERNALLY, 0, MHD_USE_POLL); |
| errorCount += testGet (MHD_USE_THREAD_PER_CONNECTION, 0, MHD_USE_POLL); |
| errorCount += testGet (MHD_USE_SELECT_INTERNALLY, CPU_COUNT, MHD_USE_POLL); |
| } |
| if (MHD_YES == MHD_is_feature_supported(MHD_FEATURE_EPOLL)) |
| { |
| errorCount += testGet (MHD_USE_SELECT_INTERNALLY, 0, MHD_USE_EPOLL_LINUX_ONLY); |
| errorCount += testGet (MHD_USE_SELECT_INTERNALLY, CPU_COUNT, MHD_USE_EPOLL_LINUX_ONLY); |
| } |
| if (errorCount != 0) |
| fprintf (stderr, "Error (code: %u)\n", errorCount); |
| curl_global_cleanup (); |
| return errorCount != 0; /* 0 == pass */ |
| } |