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/*
This file is part of libmicrohttpd
Copyright (C) 2007, 2009, 2011 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., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
/**
* @file test_callback.c
* @brief Testcase for MHD not calling the callback too often
* @author Jan Seeger
* @author Christian Grothoff
*/
#include "MHD_config.h"
#include "platform.h"
#include <curl/curl.h>
#include <microhttpd.h>
struct callback_closure
{
unsigned int called;
};
static ssize_t
called_twice(void *cls, uint64_t pos, char *buf, size_t max)
{
struct callback_closure *cls2 = cls;
(void)pos; /* Unused. Silent compiler warning. */
if (cls2->called == 0)
{
memcpy(buf, "test", 5);
cls2->called = 1;
return strlen(buf);
}
if (cls2->called == 1)
{
cls2->called = 2;
return MHD_CONTENT_READER_END_OF_STREAM;
}
fprintf(stderr,
"Handler called after returning END_OF_STREAM!\n");
return MHD_CONTENT_READER_END_WITH_ERROR;
}
static int
callback(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 **con_cls)
{
struct callback_closure *cbc = calloc(1, sizeof(struct callback_closure));
struct MHD_Response *r;
int ret;
(void)cls;
(void)url; /* Unused. Silent compiler warning. */
(void)method;
(void)version;
(void)upload_data; /* Unused. Silent compiler warning. */
(void)upload_data_size;
(void)con_cls; /* Unused. Silent compiler warning. */
if (NULL == cbc)
return MHD_NO;
r = MHD_create_response_from_callback (MHD_SIZE_UNKNOWN, 1024,
&called_twice, cbc,
&free);
if (NULL == r)
{
free (cbc);
return MHD_NO;
}
ret = MHD_queue_response (connection,
MHD_HTTP_OK,
r);
MHD_destroy_response (r);
return ret;
}
static size_t
discard_buffer (void *ptr,
size_t size,
size_t nmemb,
void *ctx)
{
(void)ptr;(void)ctx; /* Unused. Silent compiler warning. */
return size * nmemb;
}
int
main(int argc, char **argv)
{
struct MHD_Daemon *d;
fd_set rs;
fd_set ws;
fd_set es;
MHD_socket maxsock;
#ifdef MHD_WINSOCK_SOCKETS
int maxposixs; /* Max socket number unused on W32 */
#else /* MHD_POSIX_SOCKETS */
#define maxposixs maxsock
#endif /* MHD_POSIX_SOCKETS */
CURL *c;
CURLM *multi;
CURLMcode mret;
struct CURLMsg *msg;
int running;
struct timeval tv;
int extra;
int port;
(void)argc; (void)argv; /* Unused. Silent compiler warning. */
if (MHD_NO != MHD_is_feature_supported (MHD_FEATURE_AUTODETECT_BIND_PORT))
port = 0;
else
port = 1140;
d = MHD_start_daemon(0,
port,
NULL,
NULL,
&callback,
NULL,
MHD_OPTION_END);
if (d == NULL)
return 32;
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 48; }
port = (int)dinfo->port;
}
c = curl_easy_init ();
curl_easy_setopt (c, CURLOPT_URL, "http://127.0.0.1/");
curl_easy_setopt (c, CURLOPT_PORT, (long)port);
curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &discard_buffer);
curl_easy_setopt (c, CURLOPT_FAILONERROR, 1);
curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);
curl_easy_setopt (c, CURLOPT_TIMEOUT, 150L);
curl_easy_setopt (c, CURLOPT_CONNECTTIMEOUT, 150L);
curl_easy_setopt (c, CURLOPT_NOSIGNAL, 1);
multi = curl_multi_init ();
if (multi == NULL)
{
curl_easy_cleanup (c);
MHD_stop_daemon (d);
return 1;
}
mret = curl_multi_add_handle (multi, c);
if (mret != CURLM_OK)
{
curl_multi_cleanup (multi);
curl_easy_cleanup (c);
MHD_stop_daemon (d);
return 2;
}
extra = 10;
while ( (c != NULL) || (--extra > 0) )
{
maxsock = MHD_INVALID_SOCKET;
maxposixs = -1;
FD_ZERO(&ws);
FD_ZERO(&rs);
FD_ZERO(&es);
curl_multi_perform (multi, &running);
if (NULL != multi)
{
mret = curl_multi_fdset (multi, &rs, &ws, &es, &maxposixs);
if (mret != CURLM_OK)
{
curl_multi_remove_handle (multi, c);
curl_multi_cleanup (multi);
curl_easy_cleanup (c);
MHD_stop_daemon (d);
return 3;
}
}
if (MHD_YES !=
MHD_get_fdset(d, &rs, &ws, &es, &maxsock))
{
curl_multi_remove_handle (multi, c);
curl_multi_cleanup (multi);
curl_easy_cleanup (c);
MHD_stop_daemon (d);
return 4;
}
tv.tv_sec = 0;
tv.tv_usec = 1000;
if (-1 == select (maxposixs + 1, &rs, &ws, &es, &tv))
{
#ifdef MHD_POSIX_SOCKETS
if (EINTR != errno)
abort ();
#else
if (WSAEINVAL != WSAGetLastError() || 0 != rs.fd_count || 0 != ws.fd_count || 0 != es.fd_count)
abort ();
Sleep (1000);
#endif
}
if (NULL != multi)
{
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 (msg->data.result != CURLE_OK)
printf ("%s failed at %s:%d: `%s'\n",
"curl_multi_perform",
__FILE__,
__LINE__, curl_easy_strerror (msg->data.result));
curl_multi_remove_handle (multi, c);
curl_multi_cleanup (multi);
curl_easy_cleanup (c);
c = NULL;
multi = NULL;
}
}
}
MHD_run(d);
}
MHD_stop_daemon(d);
return 0;
}
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