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authorsanjeevr@chromium.org <sanjeevr@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2010-04-29 03:31:34 +0000
committersanjeevr@chromium.org <sanjeevr@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2010-04-29 03:31:34 +0000
commit2cbac9eb5be45ba99a37b28eb1dbf306ee3e67cd (patch)
tree9bae18a794cacca3aa2164deca4e6460815f20b9 /chrome/browser/chrome_thread.cc
parentad3d7273dff93e5107a947c05c6a47c35ea7eea7 (diff)
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Created a MessageLoopProxy interface. This provides a thread-safe refcounted interface to the Post* methods
of a message loop. This class can outlive the target message loop. Changed ChromeThread to vend an implementation of this proxy. BUG=None TEST=ChromeThread unit-tests modified. Review URL: http://codereview.chromium.org/1800008 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@45907 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'chrome/browser/chrome_thread.cc')
-rw-r--r--chrome/browser/chrome_thread.cc47
1 files changed, 47 insertions, 0 deletions
diff --git a/chrome/browser/chrome_thread.cc b/chrome/browser/chrome_thread.cc
index 300c2f6..6421a79 100644
--- a/chrome/browser/chrome_thread.cc
+++ b/chrome/browser/chrome_thread.cc
@@ -5,6 +5,7 @@
#include "chrome/browser/chrome_thread.h"
#include "base/message_loop.h"
+#include "base/message_loop_proxy.h"
// Friendly names for the well-known threads.
static const char* chrome_thread_names[ChromeThread::ID_COUNT] = {
@@ -19,6 +20,44 @@ static const char* chrome_thread_names[ChromeThread::ID_COUNT] = {
#endif
};
+// An implementation of MessageLoopProxy to be used in conjunction
+// with ChromeThread.
+class ChromeThreadMessageLoopProxy : public MessageLoopProxy {
+ public:
+ explicit ChromeThreadMessageLoopProxy(ChromeThread::ID identifier)
+ : id_(identifier) {
+ }
+
+ // MessageLoopProxy implementation.
+ virtual bool PostTask(const tracked_objects::Location& from_here,
+ Task* task) {
+ return ChromeThread::PostTask(id_, from_here, task);
+ }
+
+ virtual bool PostDelayedTask(const tracked_objects::Location& from_here,
+ Task* task, int64 delay_ms) {
+ return ChromeThread::PostDelayedTask(id_, from_here, task, delay_ms);
+ }
+
+ virtual bool PostNonNestableTask(const tracked_objects::Location& from_here,
+ Task* task) {
+ return ChromeThread::PostNonNestableTask(id_, from_here, task);
+ }
+
+ virtual bool PostNonNestableDelayedTask(
+ const tracked_objects::Location& from_here,
+ Task* task,
+ int64 delay_ms) {
+ return ChromeThread::PostNonNestableDelayedTask(id_, from_here, task,
+ delay_ms);
+ }
+
+ private:
+ ChromeThread::ID id_;
+ DISALLOW_COPY_AND_ASSIGN(ChromeThreadMessageLoopProxy);
+};
+
+
Lock ChromeThread::lock_;
ChromeThread* ChromeThread::chrome_threads_[ID_COUNT];
@@ -122,6 +161,14 @@ bool ChromeThread::GetCurrentThreadIdentifier(ID* identifier) {
}
// static
+scoped_refptr<MessageLoopProxy> ChromeThread::GetMessageLoopProxyForThread(
+ ID identifier) {
+ scoped_refptr<MessageLoopProxy> proxy =
+ new ChromeThreadMessageLoopProxy(identifier);
+ return proxy;
+}
+
+// static
bool ChromeThread::PostTaskHelper(
ID identifier,
const tracked_objects::Location& from_here,