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/*
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 "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)
{
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;
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 pid_t
do_gets (int port)
{
pid_t ret;
CURL *c;
CURLcode errornum;
unsigned int i;
unsigned int j;
pid_t par[PAR];
char url[64];
sprintf(url, "http://127.0.0.1:%d/hello_world", port);
ret = fork ();
if (ret == -1) abort ();
if (ret != 0)
return ret;
for (j=0;j<PAR;j++)
{
par[j] = fork ();
if (par[j] == 0)
{
for (i=0;i<ROUNDS;i++)
{
c = curl_easy_init ();
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, 150L);
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, 150L);
/* NOTE: use of CONNECTTIMEOUT without also
setting NOSIGNAL results in really weird
crashes on my system! */
curl_easy_setopt (c, CURLOPT_NOSIGNAL, 1);
if (CURLE_OK != (errornum = curl_easy_perform (c)))
{
curl_easy_cleanup (c);
_exit (1);
}
curl_easy_cleanup (c);
}
_exit (0);
}
}
sleep (1);
for (j=0;j<PAR;j++)
{
kill (par[j], SIGKILL);
waitpid (par[j], NULL, 0);
}
_exit (0);
}
static void
join_gets (pid_t pid)
{
int status;
status = 1;
waitpid (pid, &status, 0);
if (0 != status)
abort ();
}
static int
testMultithreadedGet (int port,
int poll_flag)
{
struct MHD_Daemon *d;
pid_t p;
d = MHD_start_daemon (MHD_USE_THREAD_PER_CONNECTION | MHD_USE_DEBUG | poll_flag,
port,
NULL, NULL,
&ahc_echo, "GET",
MHD_OPTION_END);
if (d == NULL)
return 16;
p = do_gets (port);
sleep (1);
MHD_stop_daemon (d);
join_gets (p);
return 0;
}
static int
testMultithreadedPoolGet (int port,
int poll_flag)
{
struct MHD_Daemon *d;
pid_t p;
d = MHD_start_daemon (MHD_USE_SELECT_INTERNALLY | MHD_USE_DEBUG | poll_flag,
port,
NULL, NULL,
&ahc_echo, "GET",
MHD_OPTION_THREAD_POOL_SIZE, CPU_COUNT,
MHD_OPTION_END);
if (d == NULL)
return 16;
p = do_gets (port);
sleep (1);
MHD_stop_daemon (d);
join_gets (p);
return 0;
}
int
main (int argc, char *const *argv)
{
unsigned int errorCount = 0;
int port = 1081;
oneone = (NULL != strrchr (argv[0], (int) '/')) ?
(NULL != strstr (strrchr (argv[0], (int) '/'), "11")) : 0;
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);
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 */
}
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