/*
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 */
}