webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 91 insertions, 0 deletions

diff --git a/Source/ThirdParty/ANGLE/util/posix/Posix_system_utils.cpp b/Source/ThirdParty/ANGLE/util/posix/Posix_system_utils.cpp
new file mode 100644
index 000000000..010735b3b
--- /dev/null
+++ b/Source/ThirdParty/ANGLE/util/posix/Posix_system_utils.cpp
@@ -0,0 +1,91 @@
+//
+// Copyright (c) 2015 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+// Posix_system_utils.cpp: Implementation of OS-specific functions for Posix systems
+
+#include "system_utils.h"
+
+#include <sys/resource.h>
+#include <dlfcn.h>
+#include <sched.h>
+#include <time.h>
+#include <unistd.h>
+
+namespace angle
+{
+
+void Sleep(unsigned int milliseconds)
+{
+    // On Windows Sleep(0) yields while it isn't guaranteed by Posix's sleep
+    // so we replicate Windows' behavior with an explicit yield.
+    if (milliseconds == 0)
+    {
+        sched_yield();
+    }
+    else
+    {
+        timespec sleepTime =
+        {
+            .tv_sec = milliseconds / 1000,
+            .tv_nsec = (milliseconds % 1000) * 1000000,
+        };
+
+        nanosleep(&sleepTime, nullptr);
+    }
+}
+
+void SetLowPriorityProcess()
+{
+    setpriority(PRIO_PROCESS, getpid(), 10);
+}
+
+void WriteDebugMessage(const char *format, ...)
+{
+    // TODO(jmadill): Implement this
+}
+
+class PosixLibrary : public Library
+{
+  public:
+    PosixLibrary(const std::string &libraryName);
+    ~PosixLibrary() override;
+
+    void *getSymbol(const std::string &symbolName) override;
+
+  private:
+    void *mModule;
+};
+
+PosixLibrary::PosixLibrary(const std::string &libraryName) : mModule(nullptr)
+{
+    const auto &fullName = libraryName + "." + GetSharedLibraryExtension();
+    mModule              = dlopen(fullName.c_str(), RTLD_NOW);
+}
+
+PosixLibrary::~PosixLibrary()
+{
+    if (mModule)
+    {
+        dlclose(mModule);
+    }
+}
+
+void *PosixLibrary::getSymbol(const std::string &symbolName)
+{
+    if (!mModule)
+    {
+        return nullptr;
+    }
+
+    return dlsym(mModule, symbolName.c_str());
+}
+
+Library *loadLibrary(const std::string &libraryName)
+{
+    return new PosixLibrary(libraryName);
+}
+
+} // namespace angle