/*
This file is part of libmicrohttpd
Copyright (C) 2007, 2009, 2011, 2015, 2016 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 3, 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., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
/**
* @file test_concurrent_stop.c
* @brief test stopping server while concurrent GETs are ongoing
* @author Christian Grothoff
*/
#include "MHD_config.h"
#include "platform.h"
#include <curl/curl.h>
#include <microhttpd.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <pthread.h>
#include "gauger.h"
#ifdef CPU_COUNT
#undef CPU_COUNT
#endif
#define CPU_COUNT 40
/**
* How many rounds of operations do we do for each
* test (total number of requests will be ROUNDS * PAR).
*/
#define ROUNDS 50000
/**
* How many requests do we do in parallel?
*/
#define PAR CPU_COUNT
/**
* Do we use HTTP 1.1?
*/
static int oneone;
/**
* Response to return (re-used).
*/
static struct MHD_Response *response;
static size_t
copyBuffer (void *ptr,
size_t size, size_t nmemb,
void *ctx)
{
(void)ptr;(void)ctx; /* Unused. Silent compiler warning. */
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;
int ret;
(void)url;(void)version; /* Unused. Silent compiler warning. */
(void)upload_data;(void)upload_data_size; /* Unused. Silent compiler warning. */
if (0 != strcmp (me, method))
return MHD_NO; /* unexpected method */
if (&ptr != *unused)
{
*unused = &ptr;
return MHD_YES;
}
*unused = NULL;
ret = MHD_queue_response (connection,
MHD_HTTP_OK,
response);
if (ret == MHD_NO)
abort ();
return ret;
}
static void
clean_curl(void * param)
{
if (param)
{
CURL * const c = *((CURL **)param);
if (c)
curl_easy_cleanup (c);
}
}
static void *
thread_gets (void *param)
{
CURL *c;
CURLcode errornum;
unsigned int i;
char * const url = (char*) param;
int pth_olst;
if (pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, &pth_olst) ||
pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, &pth_olst) )
{
fprintf(stderr,
"pthread_setcancelstate()/pthread_setcanceltype() failed.\n");
_exit(99);
}
for (i=0;i<ROUNDS;i++)
{
pthread_testcancel();
c = NULL;
pthread_cleanup_push(clean_curl, (void*)&c);
c = curl_easy_init ();
pthread_testcancel();
curl_easy_setopt (c, CURLOPT_URL, url);
curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, ©Buffer);
curl_easy_setopt (c, CURLOPT_WRITEDATA, NULL);
curl_easy_setopt (c, CURLOPT_FAILONERROR, 1);
curl_easy_setopt (c, CURLOPT_TIMEOUT, 5L);
if (oneone)
curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
else
curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);
curl_easy_setopt (c, CURLOPT_CONNECTTIMEOUT, 5L);
/* NOTE: use of CONNECTTIMEOUT without also
setting NOSIGNAL results in really weird
crashes on my system! */
curl_easy_setopt (c, CURLOPT_NOSIGNAL, 1);
pthread_testcancel();
errornum = curl_easy_perform (c);
pthread_cleanup_pop (1);
if (CURLE_OK != errornum)
return NULL;
}
return NULL;
}
static void *
do_gets (void * param)
{
int j;
pthread_t par[PAR];
char url[64];
int port = (int)(intptr_t)param;
sprintf(url, "http://127.0.0.1:%d/hello_world", port);
for (j=0;j<PAR;j++)
{
if (0 != pthread_create(&par[j], NULL, &thread_gets, (void*)url))
{
fprintf(stderr, "pthread_create failed.\n");
for (j--; j >= 0; j--)
{
pthread_cancel(par[j]);
pthread_join(par[j], NULL);
}
_exit(99);
}
}
(void)sleep (1);
for (j=0;j<PAR;j++)
{
pthread_cancel(par[j]);
pthread_join(par[j], NULL);
}
return NULL;
}
pthread_t start_gets(int port)
{
pthread_t tid;
if (0 != pthread_create(&tid, NULL, &do_gets, (void*)(intptr_t)port))
{
fprintf(stderr, "pthread_create failed.\n");
_exit(99);
}
return tid;
}
static int
testMultithreadedGet (int port,
int poll_flag)
{
struct MHD_Daemon *d;
pthread_t p;
d = MHD_start_daemon (MHD_USE_THREAD_PER_CONNECTION | MHD_USE_INTERNAL_POLLING_THREAD | MHD_USE_ERROR_LOG | poll_flag,
port,
NULL, NULL,
&ahc_echo, "GET",
MHD_OPTION_END);
if (d == NULL)
return 16;
if (0 == port)
{
const union MHD_DaemonInfo *dinfo;
dinfo = MHD_get_daemon_info (d, MHD_DAEMON_INFO_BIND_PORT);
if (NULL == dinfo || 0 == dinfo->port)
{ MHD_stop_daemon (d); return 32; }
port = (int)dinfo->port;
}
p = start_gets (port);
(void)sleep (1);
MHD_stop_daemon (d);
pthread_join (p, NULL);
return 0;
}
static int
testMultithreadedPoolGet (int port,
int poll_flag)
{
struct MHD_Daemon *d;
pthread_t p;
d = MHD_start_daemon (MHD_USE_INTERNAL_POLLING_THREAD | MHD_USE_ERROR_LOG | poll_flag,
port,
NULL, NULL,
&ahc_echo, "GET",
MHD_OPTION_THREAD_POOL_SIZE, CPU_COUNT,
MHD_OPTION_END);
if (d == NULL)
return 16;
if (0 == port)
{
const union MHD_DaemonInfo *dinfo;
dinfo = MHD_get_daemon_info (d, MHD_DAEMON_INFO_BIND_PORT);
if (NULL == dinfo || 0 == dinfo->port)
{ MHD_stop_daemon (d); return 32; }
port = (int)dinfo->port;
}
p = start_gets (port);
(void)sleep (1);
MHD_stop_daemon (d);
pthread_join (p, NULL);
return 0;
}
int
main (int argc, char *const *argv)
{
unsigned int errorCount = 0;
int port;
(void)argc; /* Unused. Silent compiler warning. */
if (MHD_NO != MHD_is_feature_supported (MHD_FEATURE_AUTODETECT_BIND_PORT))
port = 0;
else
port = 1142;
oneone = (NULL != strrchr (argv[0], (int) '/')) ?
(NULL != strstr (strrchr (argv[0], (int) '/'), "11")) : 0;
if (0 != port && oneone)
port += 5;
if (0 != curl_global_init (CURL_GLOBAL_WIN32))
return 2;
response = MHD_create_response_from_buffer (strlen ("/hello_world"),
"/hello_world",
MHD_RESPMEM_MUST_COPY);
errorCount += testMultithreadedGet (port, 0);
if (0 != port) port++;
errorCount += testMultithreadedPoolGet (port, 0);
MHD_destroy_response (response);
if (errorCount != 0)
fprintf (stderr, "Error (code: %u)\n", errorCount);
curl_global_cleanup ();
return errorCount != 0; /* 0 == pass */
}