Add Thread::isRunning and Condition::signal(WakeUpType)
The signal() method is useful to choose whether to wake up one or
all threads.
Change-Id: I062ab6d3ddd306a9fb735549ea140e2a76eed75a
diff --git a/include/utils/Condition.h b/include/utils/Condition.h
index 8852d53..e63ba7e 100644
--- a/include/utils/Condition.h
+++ b/include/utils/Condition.h
@@ -48,6 +48,11 @@
SHARED = 1
};
+ enum WakeUpType {
+ WAKE_UP_ONE = 0,
+ WAKE_UP_ALL = 1
+ };
+
Condition();
Condition(int type);
~Condition();
@@ -57,6 +62,14 @@
status_t waitRelative(Mutex& mutex, nsecs_t reltime);
// Signal the condition variable, allowing one thread to continue.
void signal();
+ // Signal the condition variable, allowing one or all threads to continue.
+ void signal(WakeUpType type) {
+ if (type == WAKE_UP_ONE) {
+ signal();
+ } else {
+ broadcast();
+ }
+ }
// Signal the condition variable, allowing all threads to continue.
void broadcast();
diff --git a/include/utils/Thread.h b/include/utils/Thread.h
index 4a34abd..df30611 100644
--- a/include/utils/Thread.h
+++ b/include/utils/Thread.h
@@ -67,6 +67,9 @@
// Do not call from this object's thread; will return WOULD_BLOCK in that case.
status_t join();
+ // Indicates whether this thread is running or not.
+ bool isRunning() const;
+
#ifdef HAVE_ANDROID_OS
// Return the thread's kernel ID, same as the thread itself calling gettid() or
// androidGetTid(), or -1 if the thread is not running.
diff --git a/libs/utils/Threads.cpp b/libs/utils/Threads.cpp
index cbf4ef6..e0f12dc 100644
--- a/libs/utils/Threads.cpp
+++ b/libs/utils/Threads.cpp
@@ -846,6 +846,11 @@
return mStatus;
}
+bool Thread::isRunning() const {
+ Mutex::Autolock _l(mLock);
+ return mRunning;
+}
+
#ifdef HAVE_ANDROID_OS
pid_t Thread::getTid() const
{