Constantine Sapuntzakis provided initial thread abstraction layer

1 files changed, 124 insertions, 0 deletions

diff --git a/lib/curl_threads.c b/lib/curl_threads.c
new file mode 100644
index 000000000..7c87c19a4
--- /dev/null
+++ b/lib/curl_threads.c
@@ -0,0 +1,124 @@
+/***************************************************************************
+ *                                  _   _ ____  _
+ *  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_* */