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am b37b53bf: am 87942c9a: am b3bfe881: Merge "Make libutils Looper independent of frameworks/native" 

* commit 'b37b53bf0775cabdfac05dd1d644f85b6f830005':
  Make libutils Looper independent of frameworks/native
This commit is contained in:
Brian Carlstrom 2013-12-19 07:22:47 +00:00 committed by Android Git Automerger
parent 796be8f143 b37b53bf07
commit 137ab19a0a
3 changed files with 213 additions and 124 deletions
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139
include/utils/Looper.h
View File

@ -22,18 +22,28 @@
#include <utils/KeyedVector.h>
#include <utils/Timers.h>
#include <android/looper.h>
#include <sys/epoll.h>
/*
* Declare a concrete type for the NDK's looper forward declaration.
*/
struct ALooper {
};
namespace android {
/*
* NOTE: Since Looper is used to implement the NDK ALooper, the Looper
* enums and the signature of Looper_callbackFunc need to align with
* that implementation.
*/
/**
* For callback-based event loops, this is the prototype of the function
* that is called when a file descriptor event occurs.
* It is given the file descriptor it is associated with,
* a bitmask of the poll events that were triggered (typically EVENT_INPUT),
* and the data pointer that was originally supplied.
*
* Implementations should return 1 to continue receiving callbacks, or 0
* to have this file descriptor and callback unregistered from the looper.
*/
typedef int (*Looper_callbackFunc)(int fd, int events, void* data);
/**
* A message that can be posted to a Looper.
*/
@ -93,7 +103,7 @@ public:
/**
* Handles a poll event for the given file descriptor.
* It is given the file descriptor it is associated with,
* a bitmask of the poll events that were triggered (typically ALOOPER_EVENT_INPUT),
* a bitmask of the poll events that were triggered (typically EVENT_INPUT),
* and the data pointer that was originally supplied.
*
* Implementations should return 1 to continue receiving callbacks, or 0
@ -102,34 +112,113 @@ public:
virtual int handleEvent(int fd, int events, void* data) = 0;
};
/**
* Wraps a ALooper_callbackFunc function pointer.
* Wraps a Looper_callbackFunc function pointer.
*/
class SimpleLooperCallback : public LooperCallback {
protected:
virtual ~SimpleLooperCallback();
public:
SimpleLooperCallback(ALooper_callbackFunc callback);
SimpleLooperCallback(Looper_callbackFunc callback);
virtual int handleEvent(int fd, int events, void* data);
private:
ALooper_callbackFunc mCallback;
Looper_callbackFunc mCallback;
};
/**
* A polling loop that supports monitoring file descriptor events, optionally
* using callbacks. The implementation uses epoll() internally.
*
* A looper can be associated with a thread although there is no requirement that it must be.
*/
class Looper : public ALooper, public RefBase {
class Looper : public RefBase {
protected:
virtual ~Looper();
public:
enum {
/**
* Result from Looper_pollOnce() and Looper_pollAll():
* The poll was awoken using wake() before the timeout expired
* and no callbacks were executed and no other file descriptors were ready.
*/
POLL_WAKE = -1,
/**
* Result from Looper_pollOnce() and Looper_pollAll():
* One or more callbacks were executed.
*/
POLL_CALLBACK = -2,
/**
* Result from Looper_pollOnce() and Looper_pollAll():
* The timeout expired.
*/
POLL_TIMEOUT = -3,
/**
* Result from Looper_pollOnce() and Looper_pollAll():
* An error occurred.
*/
POLL_ERROR = -4,
};
/**
* Flags for file descriptor events that a looper can monitor.
*
* These flag bits can be combined to monitor multiple events at once.
*/
enum {
/**
* The file descriptor is available for read operations.
*/
EVENT_INPUT = 1 << 0,
/**
* The file descriptor is available for write operations.
*/
EVENT_OUTPUT = 1 << 1,
/**
* The file descriptor has encountered an error condition.
*
* The looper always sends notifications about errors; it is not necessary
* to specify this event flag in the requested event set.
*/
EVENT_ERROR = 1 << 2,
/**
* The file descriptor was hung up.
* For example, indicates that the remote end of a pipe or socket was closed.
*
* The looper always sends notifications about hangups; it is not necessary
* to specify this event flag in the requested event set.
*/
EVENT_HANGUP = 1 << 3,
/**
* The file descriptor is invalid.
* For example, the file descriptor was closed prematurely.
*
* The looper always sends notifications about invalid file descriptors; it is not necessary
* to specify this event flag in the requested event set.
*/
EVENT_INVALID = 1 << 4,
};
enum {
/**
* Option for Looper_prepare: this looper will accept calls to
* Looper_addFd() that do not have a callback (that is provide NULL
* for the callback). In this case the caller of Looper_pollOnce()
* or Looper_pollAll() MUST check the return from these functions to
* discover when data is available on such fds and process it.
*/
PREPARE_ALLOW_NON_CALLBACKS = 1<<0
};
/**
* Creates a looper.
*
@ -152,16 +241,16 @@ public:
* If the timeout is zero, returns immediately without blocking.
* If the timeout is negative, waits indefinitely until an event appears.
*
* Returns ALOOPER_POLL_WAKE if the poll was awoken using wake() before
* Returns POLL_WAKE if the poll was awoken using wake() before
* the timeout expired and no callbacks were invoked and no other file
* descriptors were ready.
*
* Returns ALOOPER_POLL_CALLBACK if one or more callbacks were invoked.
* Returns POLL_CALLBACK if one or more callbacks were invoked.
*
* Returns ALOOPER_POLL_TIMEOUT if there was no data before the given
* Returns POLL_TIMEOUT if there was no data before the given
* timeout expired.
*
* Returns ALOOPER_POLL_ERROR if an error occurred.
* Returns POLL_ERROR if an error occurred.
*
* Returns a value >= 0 containing an identifier if its file descriptor has data
* and it has no callback function (requiring the caller here to handle it).
@ -179,7 +268,7 @@ public:
/**
* Like pollOnce(), but performs all pending callbacks until all
* data has been consumed or a file descriptor is available with no callback.
* This function will never return ALOOPER_POLL_CALLBACK.
* This function will never return POLL_CALLBACK.
*/
int pollAll(int timeoutMillis, int* outFd, int* outEvents, void** outData);
inline int pollAll(int timeoutMillis) {
@ -200,8 +289,8 @@ public:
*
* "fd" is the file descriptor to be added.
* "ident" is an identifier for this event, which is returned from pollOnce().
* The identifier must be >= 0, or ALOOPER_POLL_CALLBACK if providing a non-NULL callback.
* "events" are the poll events to wake up on. Typically this is ALOOPER_EVENT_INPUT.
* The identifier must be >= 0, or POLL_CALLBACK if providing a non-NULL callback.
* "events" are the poll events to wake up on. Typically this is EVENT_INPUT.
* "callback" is the function to call when there is an event on the file descriptor.
* "data" is a private data pointer to supply to the callback.
*
@ -211,7 +300,7 @@ public:
* data on the file descriptor. It should execute any events it has pending,
* appropriately reading from the file descriptor. The 'ident' is ignored in this case.
*
* (2) If "callback" is NULL, the 'ident' will be returned by ALooper_pollOnce
* (2) If "callback" is NULL, the 'ident' will be returned by Looper_pollOnce
* when its file descriptor has data available, requiring the caller to take
* care of processing it.
*
@ -225,7 +314,7 @@ public:
* easier to avoid races when the callback is removed from a different thread.
* See removeFd() for details.
*/
int addFd(int fd, int ident, int events, ALooper_callbackFunc callback, void* data);
int addFd(int fd, int ident, int events, Looper_callbackFunc callback, void* data);
int addFd(int fd, int ident, int events, const sp<LooperCallback>& callback, void* data);
/**
@ -308,7 +397,7 @@ public:
* If the thread already has a looper, it is returned. Otherwise, a new
* one is created, associated with the thread, and returned.
*
* The opts may be ALOOPER_PREPARE_ALLOW_NON_CALLBACKS or 0.
* The opts may be PREPARE_ALLOW_NON_CALLBACKS or 0.
*/
static sp<Looper> prepare(int opts);

40
libutils/Looper.cpp
View File

@ -43,7 +43,7 @@ void WeakMessageHandler::handleMessage(const Message& message) {
// --- SimpleLooperCallback ---
SimpleLooperCallback::SimpleLooperCallback(ALooper_callbackFunc callback) :
SimpleLooperCallback::SimpleLooperCallback(Looper_callbackFunc callback) :
mCallback(callback) {
}
@ -139,7 +139,7 @@ sp<Looper> Looper::getForThread() {
}
sp<Looper> Looper::prepare(int opts) {
bool allowNonCallbacks = opts & ALOOPER_PREPARE_ALLOW_NON_CALLBACKS;
bool allowNonCallbacks = opts & PREPARE_ALLOW_NON_CALLBACKS;
sp<Looper> looper = Looper::getForThread();
if (looper == NULL) {
looper = new Looper(allowNonCallbacks);
@ -147,7 +147,7 @@ sp<Looper> Looper::prepare(int opts) {
}
if (looper->getAllowNonCallbacks() != allowNonCallbacks) {
ALOGW("Looper already prepared for this thread with a different value for the "
"ALOOPER_PREPARE_ALLOW_NON_CALLBACKS option.");
"LOOPER_PREPARE_ALLOW_NON_CALLBACKS option.");
}
return looper;
}
@ -212,7 +212,7 @@ int Looper::pollInner(int timeoutMillis) {
}
// Poll.
int result = ALOOPER_POLL_WAKE;
int result = POLL_WAKE;
mResponses.clear();
mResponseIndex = 0;
@ -234,7 +234,7 @@ int Looper::pollInner(int timeoutMillis) {
goto Done;
}
ALOGW("Poll failed with an unexpected error, errno=%d", errno);
result = ALOOPER_POLL_ERROR;
result = POLL_ERROR;
goto Done;
}
@ -243,7 +243,7 @@ int Looper::pollInner(int timeoutMillis) {
#if DEBUG_POLL_AND_WAKE
ALOGD("%p ~ pollOnce - timeout", this);
#endif
result = ALOOPER_POLL_TIMEOUT;
result = POLL_TIMEOUT;
goto Done;
}
@ -265,10 +265,10 @@ int Looper::pollInner(int timeoutMillis) {
ssize_t requestIndex = mRequests.indexOfKey(fd);
if (requestIndex >= 0) {
int events = 0;
if (epollEvents & EPOLLIN) events |= ALOOPER_EVENT_INPUT;
if (epollEvents & EPOLLOUT) events |= ALOOPER_EVENT_OUTPUT;
if (epollEvents & EPOLLERR) events |= ALOOPER_EVENT_ERROR;
if (epollEvents & EPOLLHUP) events |= ALOOPER_EVENT_HANGUP;
if (epollEvents & EPOLLIN) events |= EVENT_INPUT;
if (epollEvents & EPOLLOUT) events |= EVENT_OUTPUT;
if (epollEvents & EPOLLERR) events |= EVENT_ERROR;
if (epollEvents & EPOLLHUP) events |= EVENT_HANGUP;
pushResponse(events, mRequests.valueAt(requestIndex));
} else {
ALOGW("Ignoring unexpected epoll events 0x%x on fd %d that is "
@ -304,7 +304,7 @@ Done: ;
mLock.lock();
mSendingMessage = false;
result = ALOOPER_POLL_CALLBACK;
result = POLL_CALLBACK;
} else {
// The last message left at the head of the queue determines the next wakeup time.
mNextMessageUptime = messageEnvelope.uptime;
@ -318,7 +318,7 @@ Done: ;
// Invoke all response callbacks.
for (size_t i = 0; i < mResponses.size(); i++) {
Response& response = mResponses.editItemAt(i);
if (response.request.ident == ALOOPER_POLL_CALLBACK) {
if (response.request.ident == POLL_CALLBACK) {
int fd = response.request.fd;
int events = response.events;
void* data = response.request.data;
@ -333,7 +333,7 @@ Done: ;
// Clear the callback reference in the response structure promptly because we
// will not clear the response vector itself until the next poll.
response.request.callback.clear();
result = ALOOPER_POLL_CALLBACK;
result = POLL_CALLBACK;
}
}
return result;
@ -344,7 +344,7 @@ int Looper::pollAll(int timeoutMillis, int* outFd, int* outEvents, void** outDat
int result;
do {
result = pollOnce(timeoutMillis, outFd, outEvents, outData);
} while (result == ALOOPER_POLL_CALLBACK);
} while (result == POLL_CALLBACK);
return result;
} else {
nsecs_t endTime = systemTime(SYSTEM_TIME_MONOTONIC)
@ -352,14 +352,14 @@ int Looper::pollAll(int timeoutMillis, int* outFd, int* outEvents, void** outDat
for (;;) {
int result = pollOnce(timeoutMillis, outFd, outEvents, outData);
if (result != ALOOPER_POLL_CALLBACK) {
if (result != POLL_CALLBACK) {
return result;
}
nsecs_t now = systemTime(SYSTEM_TIME_MONOTONIC);
timeoutMillis = toMillisecondTimeoutDelay(now, endTime);
if (timeoutMillis == 0) {
return ALOOPER_POLL_TIMEOUT;
return POLL_TIMEOUT;
}
}
}
@ -401,7 +401,7 @@ void Looper::pushResponse(int events, const Request& request) {
mResponses.push(response);
}
int Looper::addFd(int fd, int ident, int events, ALooper_callbackFunc callback, void* data) {
int Looper::addFd(int fd, int ident, int events, Looper_callbackFunc callback, void* data) {
return addFd(fd, ident, events, callback ? new SimpleLooperCallback(callback) : NULL, data);
}
@ -422,12 +422,12 @@ int Looper::addFd(int fd, int ident, int events, const sp<LooperCallback>& callb
return -1;
}
} else {
ident = ALOOPER_POLL_CALLBACK;
ident = POLL_CALLBACK;
}
int epollEvents = 0;
if (events & ALOOPER_EVENT_INPUT) epollEvents |= EPOLLIN;
if (events & ALOOPER_EVENT_OUTPUT) epollEvents |= EPOLLOUT;
if (events & EVENT_INPUT) epollEvents |= EPOLLIN;
if (events & EVENT_OUTPUT) epollEvents |= EPOLLOUT;
{ // acquire lock
AutoMutex _l(mLock);

158
libutils/tests/Looper_test.cpp
View File

@ -119,8 +119,8 @@ TEST_F(LooperTest, PollOnce_WhenNonZeroTimeoutAndNotAwoken_WaitsForTimeout) {
EXPECT_NEAR(100, elapsedMillis, TIMING_TOLERANCE_MS)
<< "elapsed time should approx. equal timeout";
EXPECT_EQ(ALOOPER_POLL_TIMEOUT, result)
<< "pollOnce result should be ALOOPER_POLL_TIMEOUT";
EXPECT_EQ(Looper::POLL_TIMEOUT, result)
<< "pollOnce result should be LOOPER_POLL_TIMEOUT";
}
TEST_F(LooperTest, PollOnce_WhenNonZeroTimeoutAndAwokenBeforeWaiting_ImmediatelyReturns) {
@ -132,8 +132,8 @@ TEST_F(LooperTest, PollOnce_WhenNonZeroTimeoutAndAwokenBeforeWaiting_Immediately
EXPECT_NEAR(0, elapsedMillis, TIMING_TOLERANCE_MS)
<< "elapsed time should approx. zero because wake() was called before waiting";
EXPECT_EQ(ALOOPER_POLL_WAKE, result)
<< "pollOnce result should be ALOOPER_POLL_CALLBACK because loop was awoken";
EXPECT_EQ(Looper::POLL_WAKE, result)
<< "pollOnce result should be Looper::POLL_CALLBACK because loop was awoken";
}
TEST_F(LooperTest, PollOnce_WhenNonZeroTimeoutAndAwokenWhileWaiting_PromptlyReturns) {
@ -146,8 +146,8 @@ TEST_F(LooperTest, PollOnce_WhenNonZeroTimeoutAndAwokenWhileWaiting_PromptlyRetu
EXPECT_NEAR(100, elapsedMillis, TIMING_TOLERANCE_MS)
<< "elapsed time should approx. equal wake delay";
EXPECT_EQ(ALOOPER_POLL_WAKE, result)
<< "pollOnce result should be ALOOPER_POLL_CALLBACK because loop was awoken";
EXPECT_EQ(Looper::POLL_WAKE, result)
<< "pollOnce result should be Looper::POLL_CALLBACK because loop was awoken";
}
TEST_F(LooperTest, PollOnce_WhenZeroTimeoutAndNoRegisteredFDs_ImmediatelyReturns) {
@ -157,15 +157,15 @@ TEST_F(LooperTest, PollOnce_WhenZeroTimeoutAndNoRegisteredFDs_ImmediatelyReturns
EXPECT_NEAR(0, elapsedMillis, TIMING_TOLERANCE_MS)
<< "elapsed time should be approx. zero";
EXPECT_EQ(ALOOPER_POLL_TIMEOUT, result)
<< "pollOnce result should be ALOOPER_POLL_TIMEOUT";
EXPECT_EQ(Looper::POLL_TIMEOUT, result)
<< "pollOnce result should be Looper::POLL_TIMEOUT";
}
TEST_F(LooperTest, PollOnce_WhenZeroTimeoutAndNoSignalledFDs_ImmediatelyReturns) {
Pipe pipe;
StubCallbackHandler handler(true);
handler.setCallback(mLooper, pipe.receiveFd, ALOOPER_EVENT_INPUT);
handler.setCallback(mLooper, pipe.receiveFd, Looper::EVENT_INPUT);
StopWatch stopWatch("pollOnce");
int result = mLooper->pollOnce(0);
@ -173,8 +173,8 @@ TEST_F(LooperTest, PollOnce_WhenZeroTimeoutAndNoSignalledFDs_ImmediatelyReturns)
EXPECT_NEAR(0, elapsedMillis, TIMING_TOLERANCE_MS)
<< "elapsed time should be approx. zero";
EXPECT_EQ(ALOOPER_POLL_TIMEOUT, result)
<< "pollOnce result should be ALOOPER_POLL_TIMEOUT";
EXPECT_EQ(Looper::POLL_TIMEOUT, result)
<< "pollOnce result should be Looper::POLL_TIMEOUT";
EXPECT_EQ(0, handler.callbackCount)
<< "callback should not have been invoked because FD was not signalled";
}
@ -184,7 +184,7 @@ TEST_F(LooperTest, PollOnce_WhenZeroTimeoutAndSignalledFD_ImmediatelyInvokesCall
StubCallbackHandler handler(true);
ASSERT_EQ(OK, pipe.writeSignal());
handler.setCallback(mLooper, pipe.receiveFd, ALOOPER_EVENT_INPUT);
handler.setCallback(mLooper, pipe.receiveFd, Looper::EVENT_INPUT);
StopWatch stopWatch("pollOnce");
int result = mLooper->pollOnce(0);
@ -192,21 +192,21 @@ TEST_F(LooperTest, PollOnce_WhenZeroTimeoutAndSignalledFD_ImmediatelyInvokesCall
EXPECT_NEAR(0, elapsedMillis, TIMING_TOLERANCE_MS)
<< "elapsed time should be approx. zero";
EXPECT_EQ(ALOOPER_POLL_CALLBACK, result)
<< "pollOnce result should be ALOOPER_POLL_CALLBACK because FD was signalled";
EXPECT_EQ(Looper::POLL_CALLBACK, result)
<< "pollOnce result should be Looper::POLL_CALLBACK because FD was signalled";
EXPECT_EQ(1, handler.callbackCount)
<< "callback should be invoked exactly once";
EXPECT_EQ(pipe.receiveFd, handler.fd)
<< "callback should have received pipe fd as parameter";
EXPECT_EQ(ALOOPER_EVENT_INPUT, handler.events)
<< "callback should have received ALOOPER_EVENT_INPUT as events";
EXPECT_EQ(Looper::EVENT_INPUT, handler.events)
<< "callback should have received Looper::EVENT_INPUT as events";
}
TEST_F(LooperTest, PollOnce_WhenNonZeroTimeoutAndNoSignalledFDs_WaitsForTimeoutAndReturns) {
Pipe pipe;
StubCallbackHandler handler(true);
handler.setCallback(mLooper, pipe.receiveFd, ALOOPER_EVENT_INPUT);
handler.setCallback(mLooper, pipe.receiveFd, Looper::EVENT_INPUT);
StopWatch stopWatch("pollOnce");
int result = mLooper->pollOnce(100);
@ -214,8 +214,8 @@ TEST_F(LooperTest, PollOnce_WhenNonZeroTimeoutAndNoSignalledFDs_WaitsForTimeoutA
EXPECT_NEAR(100, elapsedMillis, TIMING_TOLERANCE_MS)
<< "elapsed time should approx. equal timeout";
EXPECT_EQ(ALOOPER_POLL_TIMEOUT, result)
<< "pollOnce result should be ALOOPER_POLL_TIMEOUT";
EXPECT_EQ(Looper::POLL_TIMEOUT, result)
<< "pollOnce result should be Looper::POLL_TIMEOUT";
EXPECT_EQ(0, handler.callbackCount)
<< "callback should not have been invoked because FD was not signalled";
}
@ -225,7 +225,7 @@ TEST_F(LooperTest, PollOnce_WhenNonZeroTimeoutAndSignalledFDBeforeWaiting_Immedi
StubCallbackHandler handler(true);
pipe.writeSignal();
handler.setCallback(mLooper, pipe.receiveFd, ALOOPER_EVENT_INPUT);
handler.setCallback(mLooper, pipe.receiveFd, Looper::EVENT_INPUT);
StopWatch stopWatch("pollOnce");
int result = mLooper->pollOnce(100);
@ -235,14 +235,14 @@ TEST_F(LooperTest, PollOnce_WhenNonZeroTimeoutAndSignalledFDBeforeWaiting_Immedi
<< "signal should actually have been written";
EXPECT_NEAR(0, elapsedMillis, TIMING_TOLERANCE_MS)
<< "elapsed time should be approx. zero";
EXPECT_EQ(ALOOPER_POLL_CALLBACK, result)
<< "pollOnce result should be ALOOPER_POLL_CALLBACK because FD was signalled";
EXPECT_EQ(Looper::POLL_CALLBACK, result)
<< "pollOnce result should be Looper::POLL_CALLBACK because FD was signalled";
EXPECT_EQ(1, handler.callbackCount)
<< "callback should be invoked exactly once";
EXPECT_EQ(pipe.receiveFd, handler.fd)
<< "callback should have received pipe fd as parameter";
EXPECT_EQ(ALOOPER_EVENT_INPUT, handler.events)
<< "callback should have received ALOOPER_EVENT_INPUT as events";
EXPECT_EQ(Looper::EVENT_INPUT, handler.events)
<< "callback should have received Looper::EVENT_INPUT as events";
}
TEST_F(LooperTest, PollOnce_WhenNonZeroTimeoutAndSignalledFDWhileWaiting_PromptlyInvokesCallbackAndReturns) {
@ -250,7 +250,7 @@ TEST_F(LooperTest, PollOnce_WhenNonZeroTimeoutAndSignalledFDWhileWaiting_Promptl
StubCallbackHandler handler(true);
sp<DelayedWriteSignal> delayedWriteSignal = new DelayedWriteSignal(100, & pipe);
handler.setCallback(mLooper, pipe.receiveFd, ALOOPER_EVENT_INPUT);
handler.setCallback(mLooper, pipe.receiveFd, Looper::EVENT_INPUT);
delayedWriteSignal->run();
StopWatch stopWatch("pollOnce");
@ -261,21 +261,21 @@ TEST_F(LooperTest, PollOnce_WhenNonZeroTimeoutAndSignalledFDWhileWaiting_Promptl
<< "signal should actually have been written";
EXPECT_NEAR(100, elapsedMillis, TIMING_TOLERANCE_MS)
<< "elapsed time should approx. equal signal delay";
EXPECT_EQ(ALOOPER_POLL_CALLBACK, result)
<< "pollOnce result should be ALOOPER_POLL_CALLBACK because FD was signalled";
EXPECT_EQ(Looper::POLL_CALLBACK, result)
<< "pollOnce result should be Looper::POLL_CALLBACK because FD was signalled";
EXPECT_EQ(1, handler.callbackCount)
<< "callback should be invoked exactly once";
EXPECT_EQ(pipe.receiveFd, handler.fd)
<< "callback should have received pipe fd as parameter";
EXPECT_EQ(ALOOPER_EVENT_INPUT, handler.events)
<< "callback should have received ALOOPER_EVENT_INPUT as events";
EXPECT_EQ(Looper::EVENT_INPUT, handler.events)
<< "callback should have received Looper::EVENT_INPUT as events";
}
TEST_F(LooperTest, PollOnce_WhenCallbackAddedThenRemoved_CallbackShouldNotBeInvoked) {
Pipe pipe;
StubCallbackHandler handler(true);
handler.setCallback(mLooper, pipe.receiveFd, ALOOPER_EVENT_INPUT);
handler.setCallback(mLooper, pipe.receiveFd, Looper::EVENT_INPUT);
pipe.writeSignal(); // would cause FD to be considered signalled
mLooper->removeFd(pipe.receiveFd);
@ -287,8 +287,8 @@ TEST_F(LooperTest, PollOnce_WhenCallbackAddedThenRemoved_CallbackShouldNotBeInvo
<< "signal should actually have been written";
EXPECT_NEAR(100, elapsedMillis, TIMING_TOLERANCE_MS)
<< "elapsed time should approx. equal timeout because FD was no longer registered";
EXPECT_EQ(ALOOPER_POLL_TIMEOUT, result)
<< "pollOnce result should be ALOOPER_POLL_TIMEOUT";
EXPECT_EQ(Looper::POLL_TIMEOUT, result)
<< "pollOnce result should be Looper::POLL_TIMEOUT";
EXPECT_EQ(0, handler.callbackCount)
<< "callback should not be invoked";
}
@ -297,7 +297,7 @@ TEST_F(LooperTest, PollOnce_WhenCallbackReturnsFalse_CallbackShouldNotBeInvokedA
Pipe pipe;
StubCallbackHandler handler(false);
handler.setCallback(mLooper, pipe.receiveFd, ALOOPER_EVENT_INPUT);
handler.setCallback(mLooper, pipe.receiveFd, Looper::EVENT_INPUT);
// First loop: Callback is registered and FD is signalled.
pipe.writeSignal();
@ -310,8 +310,8 @@ TEST_F(LooperTest, PollOnce_WhenCallbackReturnsFalse_CallbackShouldNotBeInvokedA
<< "signal should actually have been written";
EXPECT_NEAR(0, elapsedMillis, TIMING_TOLERANCE_MS)
<< "elapsed time should approx. equal zero because FD was already signalled";
EXPECT_EQ(ALOOPER_POLL_CALLBACK, result)
<< "pollOnce result should be ALOOPER_POLL_CALLBACK because FD was signalled";
EXPECT_EQ(Looper::POLL_CALLBACK, result)
<< "pollOnce result should be Looper::POLL_CALLBACK because FD was signalled";
EXPECT_EQ(1, handler.callbackCount)
<< "callback should be invoked";
@ -326,8 +326,8 @@ TEST_F(LooperTest, PollOnce_WhenCallbackReturnsFalse_CallbackShouldNotBeInvokedA
<< "signal should actually have been written";
EXPECT_NEAR(0, elapsedMillis, TIMING_TOLERANCE_MS)
<< "elapsed time should approx. equal zero because timeout was zero";
EXPECT_EQ(ALOOPER_POLL_TIMEOUT, result)
<< "pollOnce result should be ALOOPER_POLL_TIMEOUT";
EXPECT_EQ(Looper::POLL_TIMEOUT, result)
<< "pollOnce result should be Looper::POLL_TIMEOUT";
EXPECT_EQ(1, handler.callbackCount)
<< "callback should not be invoked this time";
}
@ -339,7 +339,7 @@ TEST_F(LooperTest, PollOnce_WhenNonCallbackFdIsSignalled_ReturnsIdent) {
Pipe pipe;
pipe.writeSignal();
mLooper->addFd(pipe.receiveFd, expectedIdent, ALOOPER_EVENT_INPUT, NULL, expectedData);
mLooper->addFd(pipe.receiveFd, expectedIdent, Looper::EVENT_INPUT, NULL, expectedData);
StopWatch stopWatch("pollOnce");
int fd;
@ -356,15 +356,15 @@ TEST_F(LooperTest, PollOnce_WhenNonCallbackFdIsSignalled_ReturnsIdent) {
<< "pollOnce result should be the ident of the FD that was signalled";
EXPECT_EQ(pipe.receiveFd, fd)
<< "pollOnce should have returned the received pipe fd";
EXPECT_EQ(ALOOPER_EVENT_INPUT, events)
<< "pollOnce should have returned ALOOPER_EVENT_INPUT as events";
EXPECT_EQ(Looper::EVENT_INPUT, events)
<< "pollOnce should have returned Looper::EVENT_INPUT as events";
EXPECT_EQ(expectedData, data)
<< "pollOnce should have returned the data";
}
TEST_F(LooperTest, AddFd_WhenCallbackAdded_ReturnsOne) {
Pipe pipe;
int result = mLooper->addFd(pipe.receiveFd, 0, ALOOPER_EVENT_INPUT, NULL, NULL);
int result = mLooper->addFd(pipe.receiveFd, 0, Looper::EVENT_INPUT, NULL, NULL);
EXPECT_EQ(1, result)
<< "addFd should return 1 because FD was added";
@ -372,7 +372,7 @@ TEST_F(LooperTest, AddFd_WhenCallbackAdded_ReturnsOne) {
TEST_F(LooperTest, AddFd_WhenIdentIsNegativeAndCallbackIsNull_ReturnsError) {
Pipe pipe;
int result = mLooper->addFd(pipe.receiveFd, -1, ALOOPER_EVENT_INPUT, NULL, NULL);
int result = mLooper->addFd(pipe.receiveFd, -1, Looper::EVENT_INPUT, NULL, NULL);
EXPECT_EQ(-1, result)
<< "addFd should return -1 because arguments were invalid";
@ -397,7 +397,7 @@ TEST_F(LooperTest, RemoveFd_WhenCallbackNotAdded_ReturnsZero) {
TEST_F(LooperTest, RemoveFd_WhenCallbackAddedThenRemovedTwice_ReturnsOnceFirstTimeAndReturnsZeroSecondTime) {
Pipe pipe;
StubCallbackHandler handler(false);
handler.setCallback(mLooper, pipe.receiveFd, ALOOPER_EVENT_INPUT);
handler.setCallback(mLooper, pipe.receiveFd, Looper::EVENT_INPUT);
// First time.
int result = mLooper->removeFd(pipe.receiveFd);
@ -417,8 +417,8 @@ TEST_F(LooperTest, PollOnce_WhenCallbackAddedTwice_OnlySecondCallbackShouldBeInv
StubCallbackHandler handler1(true);
StubCallbackHandler handler2(true);
handler1.setCallback(mLooper, pipe.receiveFd, ALOOPER_EVENT_INPUT);
handler2.setCallback(mLooper, pipe.receiveFd, ALOOPER_EVENT_INPUT); // replace it
handler1.setCallback(mLooper, pipe.receiveFd, Looper::EVENT_INPUT);
handler2.setCallback(mLooper, pipe.receiveFd, Looper::EVENT_INPUT); // replace it
pipe.writeSignal(); // would cause FD to be considered signalled
StopWatch stopWatch("pollOnce");
@ -429,8 +429,8 @@ TEST_F(LooperTest, PollOnce_WhenCallbackAddedTwice_OnlySecondCallbackShouldBeInv
<< "signal should actually have been written";
EXPECT_NEAR(0, elapsedMillis, TIMING_TOLERANCE_MS)
<< "elapsed time should approx. zero because FD was already signalled";
EXPECT_EQ(ALOOPER_POLL_CALLBACK, result)
<< "pollOnce result should be ALOOPER_POLL_CALLBACK because FD was signalled";
EXPECT_EQ(Looper::POLL_CALLBACK, result)
<< "pollOnce result should be Looper::POLL_CALLBACK because FD was signalled";
EXPECT_EQ(0, handler1.callbackCount)
<< "original handler callback should not be invoked because it was replaced";
EXPECT_EQ(1, handler2.callbackCount)
@ -447,8 +447,8 @@ TEST_F(LooperTest, SendMessage_WhenOneMessageIsEnqueue_ShouldInvokeHandlerDuring
EXPECT_NEAR(0, elapsedMillis, TIMING_TOLERANCE_MS)
<< "elapsed time should approx. zero because message was already sent";
EXPECT_EQ(ALOOPER_POLL_CALLBACK, result)
<< "pollOnce result should be ALOOPER_POLL_CALLBACK because message was sent";
EXPECT_EQ(Looper::POLL_CALLBACK, result)
<< "pollOnce result should be Looper::POLL_CALLBACK because message was sent";
EXPECT_EQ(size_t(1), handler->messages.size())
<< "handled message";
EXPECT_EQ(MSG_TEST1, handler->messages[0].what)
@ -469,8 +469,8 @@ TEST_F(LooperTest, SendMessage_WhenMultipleMessagesAreEnqueued_ShouldInvokeHandl
EXPECT_NEAR(0, elapsedMillis, TIMING_TOLERANCE_MS)
<< "elapsed time should approx. zero because message was already sent";
EXPECT_EQ(ALOOPER_POLL_CALLBACK, result)
<< "pollOnce result should be ALOOPER_POLL_CALLBACK because message was sent";
EXPECT_EQ(Looper::POLL_CALLBACK, result)
<< "pollOnce result should be Looper::POLL_CALLBACK because message was sent";
EXPECT_EQ(size_t(3), handler1->messages.size())
<< "handled message";
EXPECT_EQ(MSG_TEST1, handler1->messages[0].what)
@ -495,8 +495,8 @@ TEST_F(LooperTest, SendMessageDelayed_WhenSentToTheFuture_ShouldInvokeHandlerAft
EXPECT_NEAR(0, elapsedMillis, TIMING_TOLERANCE_MS)
<< "first poll should end quickly because next message timeout was computed";
EXPECT_EQ(ALOOPER_POLL_WAKE, result)
<< "pollOnce result should be ALOOPER_POLL_WAKE due to wakeup";
EXPECT_EQ(Looper::POLL_WAKE, result)
<< "pollOnce result should be Looper::POLL_WAKE due to wakeup";
EXPECT_EQ(size_t(0), handler->messages.size())
<< "no message handled yet";
@ -509,16 +509,16 @@ TEST_F(LooperTest, SendMessageDelayed_WhenSentToTheFuture_ShouldInvokeHandlerAft
<< "handled message";
EXPECT_NEAR(100, elapsedMillis, TIMING_TOLERANCE_MS)
<< "second poll should end around the time of the delayed message dispatch";
EXPECT_EQ(ALOOPER_POLL_CALLBACK, result)
<< "pollOnce result should be ALOOPER_POLL_CALLBACK because message was sent";
EXPECT_EQ(Looper::POLL_CALLBACK, result)
<< "pollOnce result should be Looper::POLL_CALLBACK because message was sent";
result = mLooper->pollOnce(100);
elapsedMillis = ns2ms(stopWatch.elapsedTime());
EXPECT_NEAR(100 + 100, elapsedMillis, TIMING_TOLERANCE_MS)
<< "third poll should timeout";
EXPECT_EQ(ALOOPER_POLL_TIMEOUT, result)
<< "pollOnce result should be ALOOPER_POLL_TIMEOUT because there were no messages left";
EXPECT_EQ(Looper::POLL_TIMEOUT, result)
<< "pollOnce result should be Looper::POLL_TIMEOUT because there were no messages left";
}
TEST_F(LooperTest, SendMessageDelayed_WhenSentToThePast_ShouldInvokeHandlerDuringNextPoll) {
@ -531,8 +531,8 @@ TEST_F(LooperTest, SendMessageDelayed_WhenSentToThePast_ShouldInvokeHandlerDurin
EXPECT_NEAR(0, elapsedMillis, TIMING_TOLERANCE_MS)
<< "elapsed time should approx. zero because message was already sent";
EXPECT_EQ(ALOOPER_POLL_CALLBACK, result)
<< "pollOnce result should be ALOOPER_POLL_CALLBACK because message was sent";
EXPECT_EQ(Looper::POLL_CALLBACK, result)
<< "pollOnce result should be Looper::POLL_CALLBACK because message was sent";
EXPECT_EQ(size_t(1), handler->messages.size())
<< "handled message";
EXPECT_EQ(MSG_TEST1, handler->messages[0].what)
@ -549,8 +549,8 @@ TEST_F(LooperTest, SendMessageDelayed_WhenSentToThePresent_ShouldInvokeHandlerDu
EXPECT_NEAR(0, elapsedMillis, TIMING_TOLERANCE_MS)
<< "elapsed time should approx. zero because message was already sent";
EXPECT_EQ(ALOOPER_POLL_CALLBACK, result)
<< "pollOnce result should be ALOOPER_POLL_CALLBACK because message was sent";
EXPECT_EQ(Looper::POLL_CALLBACK, result)
<< "pollOnce result should be Looper::POLL_CALLBACK because message was sent";
EXPECT_EQ(size_t(1), handler->messages.size())
<< "handled message";
EXPECT_EQ(MSG_TEST1, handler->messages[0].what)
@ -568,8 +568,8 @@ TEST_F(LooperTest, SendMessageAtTime_WhenSentToTheFuture_ShouldInvokeHandlerAfte
EXPECT_NEAR(0, elapsedMillis, TIMING_TOLERANCE_MS)
<< "first poll should end quickly because next message timeout was computed";
EXPECT_EQ(ALOOPER_POLL_WAKE, result)
<< "pollOnce result should be ALOOPER_POLL_WAKE due to wakeup";
EXPECT_EQ(Looper::POLL_WAKE, result)
<< "pollOnce result should be Looper::POLL_WAKE due to wakeup";
EXPECT_EQ(size_t(0), handler->messages.size())
<< "no message handled yet";
@ -582,16 +582,16 @@ TEST_F(LooperTest, SendMessageAtTime_WhenSentToTheFuture_ShouldInvokeHandlerAfte
<< "handled message";
EXPECT_NEAR(100, elapsedMillis, TIMING_TOLERANCE_MS)
<< "second poll should end around the time of the delayed message dispatch";
EXPECT_EQ(ALOOPER_POLL_CALLBACK, result)
<< "pollOnce result should be ALOOPER_POLL_CALLBACK because message was sent";
EXPECT_EQ(Looper::POLL_CALLBACK, result)
<< "pollOnce result should be Looper::POLL_CALLBACK because message was sent";
result = mLooper->pollOnce(100);
elapsedMillis = ns2ms(stopWatch.elapsedTime());
EXPECT_NEAR(100 + 100, elapsedMillis, TIMING_TOLERANCE_MS)
<< "third poll should timeout";
EXPECT_EQ(ALOOPER_POLL_TIMEOUT, result)
<< "pollOnce result should be ALOOPER_POLL_TIMEOUT because there were no messages left";
EXPECT_EQ(Looper::POLL_TIMEOUT, result)
<< "pollOnce result should be Looper::POLL_TIMEOUT because there were no messages left";
}
TEST_F(LooperTest, SendMessageAtTime_WhenSentToThePast_ShouldInvokeHandlerDuringNextPoll) {
@ -605,8 +605,8 @@ TEST_F(LooperTest, SendMessageAtTime_WhenSentToThePast_ShouldInvokeHandlerDuring
EXPECT_NEAR(0, elapsedMillis, TIMING_TOLERANCE_MS)
<< "elapsed time should approx. zero because message was already sent";
EXPECT_EQ(ALOOPER_POLL_CALLBACK, result)
<< "pollOnce result should be ALOOPER_POLL_CALLBACK because message was sent";
EXPECT_EQ(Looper::POLL_CALLBACK, result)
<< "pollOnce result should be Looper::POLL_CALLBACK because message was sent";
EXPECT_EQ(size_t(1), handler->messages.size())
<< "handled message";
EXPECT_EQ(MSG_TEST1, handler->messages[0].what)
@ -624,8 +624,8 @@ TEST_F(LooperTest, SendMessageAtTime_WhenSentToThePresent_ShouldInvokeHandlerDur
EXPECT_NEAR(0, elapsedMillis, TIMING_TOLERANCE_MS)
<< "elapsed time should approx. zero because message was already sent";
EXPECT_EQ(ALOOPER_POLL_CALLBACK, result)
<< "pollOnce result should be ALOOPER_POLL_CALLBACK because message was sent";
EXPECT_EQ(Looper::POLL_CALLBACK, result)
<< "pollOnce result should be Looper::POLL_CALLBACK because message was sent";
EXPECT_EQ(size_t(1), handler->messages.size())
<< "handled message";
EXPECT_EQ(MSG_TEST1, handler->messages[0].what)
@ -645,15 +645,15 @@ TEST_F(LooperTest, RemoveMessage_WhenRemovingAllMessagesForHandler_ShouldRemoveT
EXPECT_NEAR(0, elapsedMillis, TIMING_TOLERANCE_MS)
<< "elapsed time should approx. zero because message was sent so looper was awoken";
EXPECT_EQ(ALOOPER_POLL_WAKE, result)
<< "pollOnce result should be ALOOPER_POLL_WAKE because looper was awoken";
EXPECT_EQ(Looper::POLL_WAKE, result)
<< "pollOnce result should be Looper::POLL_WAKE because looper was awoken";
EXPECT_EQ(size_t(0), handler->messages.size())
<< "no messages to handle";
result = mLooper->pollOnce(0);
EXPECT_EQ(ALOOPER_POLL_TIMEOUT, result)
<< "pollOnce result should be ALOOPER_POLL_TIMEOUT because there was nothing to do";
EXPECT_EQ(Looper::POLL_TIMEOUT, result)
<< "pollOnce result should be Looper::POLL_TIMEOUT because there was nothing to do";
EXPECT_EQ(size_t(0), handler->messages.size())
<< "no messages to handle";
}
@ -673,8 +673,8 @@ TEST_F(LooperTest, RemoveMessage_WhenRemovingSomeMessagesForHandler_ShouldRemove
EXPECT_NEAR(0, elapsedMillis, TIMING_TOLERANCE_MS)
<< "elapsed time should approx. zero because message was sent so looper was awoken";
EXPECT_EQ(ALOOPER_POLL_CALLBACK, result)
<< "pollOnce result should be ALOOPER_POLL_CALLBACK because two messages were sent";
EXPECT_EQ(Looper::POLL_CALLBACK, result)
<< "pollOnce result should be Looper::POLL_CALLBACK because two messages were sent";
EXPECT_EQ(size_t(2), handler->messages.size())
<< "no messages to handle";
EXPECT_EQ(MSG_TEST2, handler->messages[0].what)
@ -684,8 +684,8 @@ TEST_F(LooperTest, RemoveMessage_WhenRemovingSomeMessagesForHandler_ShouldRemove
result = mLooper->pollOnce(0);
EXPECT_EQ(ALOOPER_POLL_TIMEOUT, result)
<< "pollOnce result should be ALOOPER_POLL_TIMEOUT because there was nothing to do";
EXPECT_EQ(Looper::POLL_TIMEOUT, result)
<< "pollOnce result should be Looper::POLL_TIMEOUT because there was nothing to do";
EXPECT_EQ(size_t(2), handler->messages.size())
<< "no more messages to handle";
}