added a 'deps' directory and moved w32-pthreads into it

deps/w32-pthreads/pthread_mutex_init.c

@@ -0,0 +1,130 @@
+/*
+ * pthread_mutex_init.c
+ *
+ * Description:
+ * This translation unit implements mutual exclusion (mutex) primitives.
+ *
+ * --------------------------------------------------------------------------
+ *
+ *      Pthreads-win32 - POSIX Threads Library for Win32
+ *      Copyright(C) 1998 John E. Bossom
+ *      Copyright(C) 1999,2005 Pthreads-win32 contributors
+ * 
+ *      Contact Email: rpj@callisto.canberra.edu.au
+ * 
+ *      The current list of contributors is contained
+ *      in the file CONTRIBUTORS included with the source
+ *      code distribution. The list can also be seen at the
+ *      following World Wide Web location:
+ *      http://sources.redhat.com/pthreads-win32/contributors.html
+ * 
+ *      This library is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU Lesser General Public
+ *      License as published by the Free Software Foundation; either
+ *      version 2 of the License, or (at your option) any later version.
+ * 
+ *      This library 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
+ *      Lesser General Public License for more details.
+ * 
+ *      You should have received a copy of the GNU Lesser General Public
+ *      License along with this library in the file COPYING.LIB;
+ *      if not, write to the Free Software Foundation, Inc.,
+ *      59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ */
+
+#include "pthread.h"
+#include "implement.h"
+
+
+int
+pthread_mutex_init (pthread_mutex_t * mutex, const pthread_mutexattr_t * attr)
+{
+  int result = 0;
+  pthread_mutex_t mx;
+
+  if (mutex == NULL)
+    {
+      return EINVAL;
+    }
+
+  if (attr != NULL && *attr != NULL)
+    {
+      if ((*attr)->pshared == PTHREAD_PROCESS_SHARED)
+        {
+          /*
+           * Creating mutex that can be shared between
+           * processes.
+           */
+#if _POSIX_THREAD_PROCESS_SHARED >= 0
+
+          /*
+           * Not implemented yet.
+           */
+
+#error ERROR [__FILE__, line __LINE__]: Process shared mutexes are not supported yet.
+
+#else
+
+          return ENOSYS;
+
+#endif /* _POSIX_THREAD_PROCESS_SHARED */
+        }
+    }
+
+  mx = (pthread_mutex_t) calloc (1, sizeof (*mx));
+
+  if (mx == NULL)
+    {
+      result = ENOMEM;
+    }
+  else
+    {
+      mx->lock_idx = 0;
+      mx->recursive_count = 0;
+      mx->robustNode = NULL;
+      if (attr == NULL || *attr == NULL)
+        {
+          mx->kind = PTHREAD_MUTEX_DEFAULT;
+        }
+      else
+        {
+          mx->kind = (*attr)->kind;
+          if ((*attr)->robustness == PTHREAD_MUTEX_ROBUST)
+            {
+              /*
+               * Use the negative range to represent robust types.
+               * Replaces a memory fetch with a register negate and incr
+               * in pthread_mutex_lock etc.
+               *
+               * Map 0,1,..,n to -1,-2,..,(-n)-1
+               */
+              mx->kind = -mx->kind - 1;
+
+              mx->robustNode = (ptw32_robust_node_t*) malloc(sizeof(ptw32_robust_node_t));
+              mx->robustNode->stateInconsistent = PTW32_ROBUST_CONSISTENT;
+              mx->robustNode->mx = mx;
+              mx->robustNode->next = NULL;
+              mx->robustNode->prev = NULL;
+            }
+        }
+
+      mx->ownerThread.p = NULL;
+
+      mx->event = CreateEvent (NULL, PTW32_FALSE,    /* manual reset = No */
+                              PTW32_FALSE,           /* initial state = not signaled */
+                              NULL);                 /* event name */
+
+      if (0 == mx->event)
+        {
+          result = ENOSPC;
+          free (mx);
+          mx = NULL;
+        }
+    }
+
+  *mutex = mx;
+
+  return (result);
+}