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/*
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This file is part of libmicrohttpd
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Copyright (C) 2007, 2013 Christian Grothoff (and other contributing authors)
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file benchmark.c
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* @brief minimal code to benchmark MHD GET performance
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* @author Christian Grothoff
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*/
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#include "platform.h"
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#include <microhttpd.h>
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#if defined(CPU_COUNT) && (CPU_COUNT+0) < 2
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#undef CPU_COUNT
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#endif
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#if !defined(CPU_COUNT)
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#define CPU_COUNT 2
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#endif
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#define PAGE "<html><head><title>libmicrohttpd demo</title></head><body>libmicrohttpd demo</body></html>"
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#define SMALL (1024 * 128)
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/**
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* Number of threads to run in the thread pool. Should (roughly) match
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* the number of cores on your system.
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*/
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#define NUMBER_OF_THREADS CPU_COUNT
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static unsigned int small_deltas[SMALL];
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static struct MHD_Response *response;
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/**
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* Signature of the callback used by MHD to notify the
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* application about completed requests.
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*
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* @param cls client-defined closure
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* @param connection connection handle
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* @param con_cls value as set by the last call to
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* the MHD_AccessHandlerCallback
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* @param toe reason for request termination
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* @see MHD_OPTION_NOTIFY_COMPLETED
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*/
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static void
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completed_callback (void *cls,
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struct MHD_Connection *connection,
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void **con_cls,
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enum MHD_RequestTerminationCode toe)
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{
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struct timeval *tv = *con_cls;
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struct timeval tve;
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uint64_t delta;
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(void)cls; /* Unused. Silent compiler warning. */
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(void)connection; /* Unused. Silent compiler warning. */
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(void)toe; /* Unused. Silent compiler warning. */
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if (NULL == tv)
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return;
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gettimeofday (&tve, NULL);
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delta = 0;
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if (tve.tv_usec >= tv->tv_usec)
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delta += (tve.tv_sec - tv->tv_sec) * 1000000LL
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+ (tve.tv_usec - tv->tv_usec);
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else
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delta += (tve.tv_sec - tv->tv_sec) * 1000000LL
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- tv->tv_usec + tve.tv_usec;
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if (delta < SMALL)
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small_deltas[delta]++;
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else
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fprintf (stdout, "D: %llu 1\n", (unsigned long long) delta);
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free (tv);
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}
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static void *
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uri_logger_cb (void *cls,
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const char *uri)
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{
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struct timeval *tv = malloc (sizeof (struct timeval));
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(void)cls; /* Unused. Silent compiler warning. */
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(void)uri; /* Unused. Silent compiler warning. */
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if (NULL != tv)
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gettimeofday (tv, NULL);
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return tv;
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}
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static int
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ahc_echo (void *cls,
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struct MHD_Connection *connection,
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const char *url,
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const char *method,
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const char *version,
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const char *upload_data, size_t *upload_data_size, void **ptr)
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{
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(void)cls; /* Unused. Silent compiler warning. */
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(void)url; /* Unused. Silent compiler warning. */
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(void)version; /* Unused. Silent compiler warning. */
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(void)upload_data; /* Unused. Silent compiler warning. */
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(void)upload_data_size; /* Unused. Silent compiler warning. */
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(void)ptr; /* Unused. Silent compiler warning. */
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if (0 != strcmp (method, "GET"))
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return MHD_NO; /* unexpected method */
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return MHD_queue_response (connection, MHD_HTTP_OK, response);
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}
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int
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main (int argc, char *const *argv)
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{
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struct MHD_Daemon *d;
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unsigned int i;
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if (argc != 2)
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{
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printf ("%s PORT\n", argv[0]);
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return 1;
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}
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response = MHD_create_response_from_buffer (strlen (PAGE),
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(void *) PAGE,
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MHD_RESPMEM_PERSISTENT);
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#if 0
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(void) MHD_add_response_header (response,
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MHD_HTTP_HEADER_CONNECTION,
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"close");
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#endif
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d = MHD_start_daemon (MHD_USE_INTERNAL_POLLING_THREAD | MHD_USE_SUPPRESS_DATE_NO_CLOCK
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#ifdef EPOLL_SUPPORT
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| MHD_USE_EPOLL | MHD_USE_TURBO
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#endif
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,
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atoi (argv[1]),
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NULL, NULL, &ahc_echo, NULL,
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MHD_OPTION_CONNECTION_TIMEOUT, (unsigned int) 120,
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MHD_OPTION_THREAD_POOL_SIZE, (unsigned int) NUMBER_OF_THREADS,
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MHD_OPTION_URI_LOG_CALLBACK, &uri_logger_cb, NULL,
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MHD_OPTION_NOTIFY_COMPLETED, &completed_callback, NULL,
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MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 1000,
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MHD_OPTION_END);
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if (d == NULL)
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return 1;
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(void) getc (stdin);
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MHD_stop_daemon (d);
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MHD_destroy_response (response);
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for (i=0;i
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if (0 != small_deltas[i])
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fprintf (stdout, "D: %d %u\n", i, small_deltas[i]);
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return 0;
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}
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