Commit c054b8bf authored by Yang Tse's avatar Yang Tse
Browse files

Constantine Sapuntzakis provided initial thread abstraction layer

parent 340ab2f8
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@@ -11,7 +11,7 @@ CSOURCES = file.c timeval.c base64.c hostip.c progress.c formdata.c \
  inet_ntop.c parsedate.c select.c gtls.c sslgen.c tftp.c splay.c	\
  strdup.c socks.c ssh.c nss.c qssl.c rawstr.c curl_addrinfo.c          \
  socks_gssapi.c socks_sspi.c curl_sspi.c slist.c nonblock.c		\
  curl_memrchr.c imap.c pop3.c smtp.c pingpong.c rtsp.c
  curl_memrchr.c imap.c pop3.c smtp.c pingpong.c rtsp.c curl_threads.c

HHEADERS = arpa_telnet.h netrc.h file.h timeval.h qssl.h hostip.h	\
  progress.h formdata.h cookie.h http.h sendf.h ftp.h url.h dict.h	\
@@ -23,4 +23,4 @@ HHEADERS = arpa_telnet.h netrc.h file.h timeval.h qssl.h hostip.h \
  transfer.h select.h easyif.h multiif.h parsedate.h sslgen.h gtls.h	\
  tftp.h sockaddr.h splay.h strdup.h setup_once.h socks.h ssh.h nssg.h	\
  curl_base64.h rawstr.h curl_addrinfo.h curl_sspi.h slist.h nonblock.h	\
  curl_memrchr.h imap.h pop3.h smtp.h pingpong.h rtsp.h
  curl_memrchr.h imap.h pop3.h smtp.h pingpong.h rtsp.h curl_threads.h

lib/curl_threads.c

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/***************************************************************************
 *                                  _   _ ____  _
 *  Project                     ___| | | |  _ \| |
 *                             / __| | | | |_) | |
 *                            | (__| |_| |  _ <| |___
 *                             \___|\___/|_| \_\_____|
 *
 * Copyright (C) 1998 - 2010, Daniel Stenberg, <daniel@haxx.se>, et al.
 *
 * This software is licensed as described in the file COPYING, which
 * you should have received as part of this distribution. The terms
 * are also available at http://curl.haxx.se/docs/copyright.html.
 *
 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
 * copies of the Software, and permit persons to whom the Software is
 * furnished to do so, under the terms of the COPYING file.
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 * KIND, either express or implied.
 *
 * $Id$
 ***************************************************************************/
#include "setup.h"

#if defined(USE_THREADS_POSIX)
#  ifdef HAVE_PTHREAD_H
#    include <pthread.h>
#  endif
#elif defined(USE_THREADS_WIN32)
#  ifdef HAVE_PROCESS_H
#    include <process.h>
#  endif
#endif

#include "curl_threads.h"

#define _MPRINTF_REPLACE /* use our functions only */
#include <curl/mprintf.h>

#include "curl_memory.h"
/* The last #include file should be: */
#include "memdebug.h"

#if defined(USE_THREADS_POSIX)

struct curl_actual_call {
  unsigned int (*func)(void *);
  void *arg;  
};

static void *curl_thread_create_thunk(void *arg)
{
  struct curl_actual_call * ac = arg;
  unsigned int (*func)(void *) = ac->func;
  void *real_arg = ac->arg;

  free(ac);

  (*func)(real_arg);

  return 0;
}

curl_thread_t Curl_thread_create(unsigned int (*func) (void*), void *arg)
{
  curl_thread_t t;
  struct curl_actual_call *ac = malloc(sizeof(struct curl_actual_call));
  if(!ac)
    return curl_thread_t_null;

  ac->func = func;
  ac->arg = arg;

  if(pthread_create(&t, NULL, curl_thread_create_thunk, ac) != 0) {
    free(ac);
    return curl_thread_t_null;
  }

  return t;
}

void Curl_thread_destroy(curl_thread_t hnd)
{
  if(hnd != curl_thread_t_null)
    pthread_detach(hnd);
}

int Curl_thread_join(curl_thread_t *hnd)
{
  int ret = (pthread_join(*hnd, NULL) == 0);

  *hnd = curl_thread_t_null;

  return ret;
}

#elif defined(USE_THREADS_WIN32)

curl_thread_t Curl_thread_create(unsigned int (CURL_STDCALL *func) (void*), void *arg)
{
#ifdef _WIN32_WCE
  return CreateThread(NULL, 0, func, arg, 0, NULL);
#else
  return (curl_thread_t)_beginthreadex(NULL, 0, func, arg, 0, NULL);
#endif
}

void Curl_thread_destroy(curl_thread_t hnd)
{
  CloseHandle(hnd);
}

int Curl_thread_join(curl_thread_t *hnd)
{
  int ret = (WaitForSingleObject(*hnd, INFINITE) == WAIT_OBJECT_0);

  Curl_thread_destroy(*hnd);

  *hnd = curl_thread_t_null;

  return ret;
}

#endif /* USE_THREADS_* */

lib/curl_threads.h

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#ifndef HEADER_CURL_THREADS_H
#define HEADER_CURL_THREADS_H
/***************************************************************************
 *                                  _   _ ____  _
 *  Project                     ___| | | |  _ \| |
 *                             / __| | | | |_) | |
 *                            | (__| |_| |  _ <| |___
 *                             \___|\___/|_| \_\_____|
 *
 * Copyright (C) 1998 - 2010, Daniel Stenberg, <daniel@haxx.se>, et al.
 *
 * This software is licensed as described in the file COPYING, which
 * you should have received as part of this distribution. The terms
 * are also available at http://curl.haxx.se/docs/copyright.html.
 *
 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
 * copies of the Software, and permit persons to whom the Software is
 * furnished to do so, under the terms of the COPYING file.
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 * KIND, either express or implied.
 *
 * $Id$
 ***************************************************************************/
#include "setup.h"

#if defined(USE_THREADS_POSIX)
#  define CURL_STDCALL
#  define curl_mutex_t           pthread_mutex_t
#  define curl_thread_t          pthread_t
#  define curl_thread_t_null     (pthread_t)0
#  define Curl_mutex_init(m)     pthread_mutex_init(m, NULL)
#  define Curl_mutex_acquire(m)  pthread_mutex_lock(m)
#  define Curl_mutex_release(m)  pthread_mutex_unlock(m)
#  define Curl_mutex_destroy(m)  pthread_mutex_destroy(m)
#elif defined(USE_THREADS_WIN32)
#  define CURL_STDCALL           __stdcall
#  define curl_mutex_t           CRITICAL_SECTION
#  define curl_thread_t          HANDLE
#  define curl_thread_t_null     (HANDLE)0
#  define Curl_mutex_init(m)     InitializeCriticalSection(m)
#  define Curl_mutex_acquire(m)  EnterCriticalSection(m)
#  define Curl_mutex_release(m)  LeaveCriticalSection(m)
#  define Curl_mutex_destroy(m)  DeleteCriticalSection(m)
#endif

#if defined(USE_THREADS_POSIX) || defined(USE_THREADS_WIN32)

curl_thread_t Curl_thread_create(unsigned int (CURL_STDCALL *func) (void*),
                                 void *arg);

void Curl_thread_destroy(curl_thread_t hnd);

int Curl_thread_join(curl_thread_t *hnd);

#endif /* USE_THREADS_POSIX || USE_THREADS_WIN32 */

#endif /* HEADER_CURL_THREADS_H */