ocl: binary program cache

modules/core/include/opencv2/core/ocl.hpp

@@ -261,6 +261,8 @@ public:
     void setUseSVM(bool enabled);
 
     struct Impl;
+    inline Impl* getImpl() const { return (Impl*)p; }
+//protected:
     Impl* p;
 };
 

modules/core/include/opencv2/core/utils/filesystem.hpp

@@ -0,0 +1,38 @@
+// This file is part of OpenCV project.
+// It is subject to the license terms in the LICENSE file found in the top-level directory
+// of this distribution and at http://opencv.org/license.html.
+
+#ifndef OPENCV_UTILS_FILESYSTEM_HPP
+#define OPENCV_UTILS_FILESYSTEM_HPP
+
+namespace cv { namespace utils { namespace fs {
+
+
+CV_EXPORTS bool exists(const cv::String& path);
+CV_EXPORTS bool isDirectory(const cv::String& path);
+
+
+CV_EXPORTS cv::String getcwd();
+
+
+CV_EXPORTS bool createDirectory(const cv::String& path);
+CV_EXPORTS bool createDirectories(const cv::String& path);
+
+#ifdef __OPENCV_BUILD
+// TODO
+//CV_EXPORTS cv::String getTempDirectory();
+
+/**
+ * @brief Returns directory to store OpenCV cache files
+ * Create sub-directory in common OpenCV cache directory if it doesn't exist.
+ * @param sub_directory_name name of sub-directory. NULL or "" value asks to return root cache directory.
+ * @param configuration_name optional name of configuration parameter name which overrides default behavior.
+ * @return Path to cache directory. Returns empty string if cache directories support is not available. Returns "disabled" if cache disabled by user.
+ */
+CV_EXPORTS cv::String getCacheDirectory(const char* sub_directory_name, const char* configuration_name = NULL);
+
+#endif
+
+}}} // namespace
+
+#endif // OPENCV_UTILS_FILESYSTEM_HPP

modules/core/include/opencv2/core/utils/filesystem.private.hpp

@@ -0,0 +1,64 @@
+// This file is part of OpenCV project.
+// It is subject to the license terms in the LICENSE file found in the top-level directory
+// of this distribution and at http://opencv.org/license.html.
+
+#ifndef OPENCV_UTILS_FILESYSTEM_PRIVATE_HPP
+#define OPENCV_UTILS_FILESYSTEM_PRIVATE_HPP
+
+// TODO Move to CMake?
+#ifndef OPENCV_HAVE_FILESYSTEM_SUPPORT
+#  if defined(__EMSCRIPTEN__) || defined(__native_client__)
+     /* no support */
+#  elif defined __ANDROID__ || defined __linux__ || defined _WIN32 || \
+        defined __FreeBSD__ || defined __bsdi__
+#      define OPENCV_HAVE_FILESYSTEM_SUPPORT 1
+#  elif defined(__APPLE__)
+#    include <TargetConditionals.h>
+#    if (defined(TARGET_OS_OSX) && TARGET_OS_OSX) || (!defined(TARGET_OS_OSX) && !TARGET_OS_IPHONE)
+#      define OPENCV_HAVE_FILESYSTEM_SUPPORT 1 // OSX only
+#    endif
+#  else
+     /* unknown */
+#  endif
+#  ifndef OPENCV_HAVE_FILESYSTEM_SUPPORT
+#    define OPENCV_HAVE_FILESYSTEM_SUPPORT 0
+#  endif
+#endif
+
+#if OPENCV_HAVE_FILESYSTEM_SUPPORT
+namespace cv { namespace utils { namespace fs {
+
+/**
+ * File-based lock object.
+ *
+ * Provides interprocess synchronization mechanism.
+ * Platform dependent.
+ *
+ * Supports multiple readers / single writer access pattern (RW / readers–writer / shared-exclusive lock).
+ *
+ * File must exist.
+ * File can't be re-used (for example, I/O operations via std::fstream is not safe)
+ */
+class CV_EXPORTS FileLock {
+public:
+    explicit FileLock(const char* fname);
+    ~FileLock();
+
+    void lock(); //< acquire exclusive (writer) lock
+    void unlock(); //< release exclusive (writer) lock
+
+    void lock_shared(); //< acquire sharable (reader) lock
+    void unlock_shared(); //< release sharable (reader) lock
+
+    struct Impl;
+protected:
+    Impl* pImpl;
+
+private:
+    FileLock(const FileLock&); // disabled
+    FileLock& operator=(const FileLock&); // disabled
+};
+
+}}} // namespace
+#endif
+#endif // OPENCV_UTILS_FILESYSTEM_PRIVATE_HPP

modules/core/include/opencv2/core/utils/lock.private.hpp

@@ -0,0 +1,119 @@
+// This file is part of OpenCV project.
+// It is subject to the license terms in the LICENSE file found in the top-level directory
+// of this distribution and at http://opencv.org/license.html.
+
+#ifndef OPENCV_UTILS_LOCK_HPP
+#define OPENCV_UTILS_LOCK_HPP
+
+namespace cv { namespace utils {
+
+
+/** @brief A simple scoped lock (RAII-style locking for exclusive/write access).
+ *
+ * Emulate std::lock_guard (C++11), partially std::unique_lock (C++11),
+ */
+template <class _Mutex>
+class lock_guard {
+public:
+    typedef _Mutex Mutex;
+
+    explicit inline lock_guard(Mutex &m) : mutex_(&m) { mutex_->lock(); }
+
+    inline ~lock_guard() { if (mutex_) mutex_->unlock(); }
+
+    inline void release()
+    {
+        CV_DbgAssert(mutex_);
+        mutex_->unlock();
+        mutex_ = NULL;
+    }
+
+private:
+    Mutex* mutex_;
+
+private:
+    lock_guard(const lock_guard&); // disabled
+    lock_guard& operator=(const lock_guard&); // disabled
+};
+
+
+/** @brief A shared scoped lock (RAII-style locking for shared/reader access).
+ *
+ * Emulate boost::shared_lock_guard, subset of std::shared_lock (C++14),
+ */
+template <class _Mutex>
+class shared_lock_guard {
+public:
+    typedef _Mutex Mutex;
+
+    explicit inline shared_lock_guard(Mutex &m) : mutex_(&m) { mutex_->lock_shared(); }
+
+    inline ~shared_lock_guard() { if (mutex_) mutex_->unlock_shared(); }
+
+    inline void release()
+    {
+        CV_DbgAssert(mutex_);
+        mutex_->unlock_shared();
+        mutex_ = NULL;
+    }
+
+protected:
+    Mutex* mutex_;
+
+private:
+    shared_lock_guard(const shared_lock_guard&); // disabled
+    shared_lock_guard& operator=(const shared_lock_guard&); // disabled
+};
+
+
+/** @brief An optional simple scoped lock (RAII-style locking for exclusive/write access).
+ *
+ * Doesn't lock if mutex pointer is NULL.
+ *
+ * @sa lock_guard
+ */
+template <class _Mutex>
+class optional_lock_guard {
+public:
+    typedef _Mutex Mutex;
+
+    explicit inline optional_lock_guard(Mutex* m) : mutex_(m) { if (mutex_) mutex_->lock(); }
+
+    inline ~optional_lock_guard() { if (mutex_) mutex_->unlock(); }
+
+private:
+    Mutex* mutex_;
+
+private:
+    optional_lock_guard(const optional_lock_guard&); // disabled
+    optional_lock_guard& operator=(const optional_lock_guard&); // disabled
+};
+
+
+/** @brief An optional shared scoped lock (RAII-style locking for shared/reader access).
+ *
+ * Doesn't lock if mutex pointer is NULL.
+ *
+ * @sa shared_lock_guard
+ */
+template <class _Mutex>
+class optional_shared_lock_guard {
+public:
+    typedef _Mutex Mutex;
+
+    explicit inline optional_shared_lock_guard(Mutex* m) : mutex_(m) { if (mutex_) mutex_->lock_shared(); }
+
+    inline ~optional_shared_lock_guard() { if (mutex_) mutex_->unlock_shared(); }
+
+protected:
+    Mutex* mutex_;
+
+private:
+    optional_shared_lock_guard(const optional_shared_lock_guard&); // disabled
+    optional_shared_lock_guard& operator=(const optional_shared_lock_guard&); // disabled
+};
+
+
+}} // namespace
+
+#endif // OPENCV_UTILS_LOCK_HPP