cpp conversion: remove useless pj_, PJ_ and proj_ filename prefixes

1 files changed, 270 insertions, 0 deletions

diff --git a/src/mutex.cpp b/src/mutex.cpp
new file mode 100644
index 00000000..3752324c
--- /dev/null
+++ b/src/mutex.cpp
@@ -0,0 +1,270 @@
+/******************************************************************************
+ * Project:  PROJ.4
+ * Purpose:  Mutex (thread lock) functions.
+ * Author:   Frank Warmerdam, warmerdam@pobox.com
+ *
+ ******************************************************************************
+ * Copyright (c) 2009, Frank Warmerdam
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *****************************************************************************/
+
+
+/* projects.h and windows.h conflict - avoid this! */
+
+#if defined(MUTEX_pthread) && !defined(_XOPEN_SOURCE) && !defined(__sun)
+/* For pthread_mutexattr_settype */
+#define _XOPEN_SOURCE 500
+#endif
+
+/* For PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP */
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+
+#ifndef _WIN32
+#include "proj_config.h"
+#include "projects.h"
+#else
+#ifndef ACCEPT_USE_OF_DEPRECATED_PROJ_API_H
+#define ACCEPT_USE_OF_DEPRECATED_PROJ_API_H
+#endif
+#include "proj_api.h"
+#endif
+
+/* on win32 we always use win32 mutexes, even if pthreads are available */
+#if defined(_WIN32) && !defined(MUTEX_stub)
+#ifndef MUTEX_win32
+#  define MUTEX_win32
+#endif
+#  undef  MUTEX_pthread
+#endif
+
+#if !defined(MUTEX_stub) && !defined(MUTEX_pthread) && !defined(MUTEX_win32)
+#  define MUTEX_stub
+#endif
+
+/************************************************************************/
+/* ==================================================================== */
+/*                      stub mutex implementation                       */
+/* ==================================================================== */
+/************************************************************************/
+
+#ifdef MUTEX_stub
+
+/************************************************************************/
+/*                            pj_acquire_lock()                         */
+/*                                                                      */
+/*      Acquire the PROJ.4 lock.                                        */
+/************************************************************************/
+
+void pj_acquire_lock()
+{
+}
+
+/************************************************************************/
+/*                            pj_release_lock()                         */
+/*                                                                      */
+/*      Release the PROJ.4 lock.                                        */
+/************************************************************************/
+
+void pj_release_lock()
+{
+}
+
+/************************************************************************/
+/*                          pj_cleanup_lock()                           */
+/************************************************************************/
+void pj_cleanup_lock()
+{
+}
+
+#endif /* def MUTEX_stub */
+
+/************************************************************************/
+/* ==================================================================== */
+/*                    pthread mutex implementation                      */
+/* ==================================================================== */
+/************************************************************************/
+
+#ifdef MUTEX_pthread
+
+#include "pthread.h"
+
+#ifdef PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP
+#ifdef __GNUC__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wzero-as-null-pointer-constant"
+#endif
+static pthread_mutex_t core_lock = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
+#ifdef __GNUC__
+#pragma GCC diagnostic pop
+#endif
+#else
+static pthread_mutex_t core_lock;
+
+/************************************************************************/
+/*                          pj_create_lock()                            */
+/************************************************************************/
+
+static void pj_create_lock()
+{
+    /*
+    ** We need to ensure the core mutex is created in recursive mode
+    */
+    pthread_mutexattr_t mutex_attr;
+
+    pthread_mutexattr_init(&mutex_attr);
+#ifdef HAVE_PTHREAD_MUTEX_RECURSIVE
+    pthread_mutexattr_settype(&mutex_attr, PTHREAD_MUTEX_RECURSIVE);
+#else
+    pthread_mutexattr_settype(&mutex_attr, PTHREAD_MUTEX_RECURSIVE_NP);
+#endif
+    pthread_mutex_init(&core_lock, &mutex_attr);
+}
+
+#endif /* PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP */
+
+/************************************************************************/
+/*                          pj_acquire_lock()                           */
+/*                                                                      */
+/*      Acquire the PROJ.4 lock.                                        */
+/************************************************************************/
+
+void pj_acquire_lock()
+{
+
+#ifndef PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP
+    static pthread_once_t sOnceKey = PTHREAD_ONCE_INIT;
+    if( pthread_once(&sOnceKey, pj_create_lock) != 0 )
+    {
+        fprintf(stderr, "pthread_once() failed in pj_acquire_lock().\n");
+    }
+#endif
+
+    pthread_mutex_lock( &core_lock);
+}
+
+/************************************************************************/
+/*                          pj_release_lock()                           */
+/*                                                                      */
+/*      Release the PROJ.4 lock.                                        */
+/************************************************************************/
+
+void pj_release_lock()
+{
+    pthread_mutex_unlock( &core_lock );
+}
+
+/************************************************************************/
+/*                          pj_cleanup_lock()                           */
+/************************************************************************/
+void pj_cleanup_lock()
+{
+}
+
+#endif /* def MUTEX_pthread */
+
+/************************************************************************/
+/* ==================================================================== */
+/*                      win32 mutex implementation                      */
+/* ==================================================================== */
+/************************************************************************/
+
+#ifdef MUTEX_win32
+
+#include <windows.h>
+
+static HANDLE mutex_lock = NULL;
+
+#if _WIN32_WINNT >= 0x0600
+
+/************************************************************************/
+/*                          pj_create_lock()                            */
+/************************************************************************/
+
+static BOOL CALLBACK pj_create_lock(PINIT_ONCE InitOnce,
+                                    PVOID Parameter,
+                                    PVOID *Context)
+{
+    (void)InitOnce;
+    (void)Parameter;
+    (void)Context;
+    mutex_lock = CreateMutex( NULL, FALSE, NULL );
+    return TRUE;
+}
+#endif
+
+/************************************************************************/
+/*                            pj_init_lock()                            */
+/************************************************************************/
+
+static void pj_init_lock()
+
+{
+#if _WIN32_WINNT >= 0x0600
+    static INIT_ONCE sInitOnce = INIT_ONCE_STATIC_INIT;
+    InitOnceExecuteOnce( &sInitOnce, pj_create_lock, NULL, NULL );
+#else
+    if( mutex_lock == NULL )
+        mutex_lock = CreateMutex( NULL, FALSE, NULL );
+#endif
+}
+
+/************************************************************************/
+/*                          pj_acquire_lock()                           */
+/*                                                                      */
+/*      Acquire the PROJ.4 lock.                                        */
+/************************************************************************/
+
+void pj_acquire_lock()
+{
+    if( mutex_lock == NULL )
+        pj_init_lock();
+
+    WaitForSingleObject( mutex_lock, INFINITE );
+}
+
+/************************************************************************/
+/*                          pj_release_lock()                           */
+/*                                                                      */
+/*      Release the PROJ.4 lock.                                        */
+/************************************************************************/
+
+void pj_release_lock()
+{
+    if( mutex_lock == NULL )
+        pj_init_lock();
+    else
+        ReleaseMutex( mutex_lock );
+}
+
+/************************************************************************/
+/*                          pj_cleanup_lock()                           */
+/************************************************************************/
+void pj_cleanup_lock()
+{
+    if( mutex_lock != NULL )
+    {
+        CloseHandle( mutex_lock );
+        mutex_lock = NULL;
+    }
+}
+
+#endif /* def MUTEX_win32 */