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Merge "adbd: wait for FUNCTIONFS_BIND for up to a second, then retry." am: bfcb981b32 am: 80268fd592

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am: 51ca488977

Change-Id: Ia4a29eedde07ea29b0a7650179330386ecf19af1
This commit is contained in:
Josh Gao 2019-03-28 14:02:31 -07:00 committed by android-build-merger
commit 2a1fb09335
1 changed files with 19 additions and 6 deletions
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25
adb/daemon/usb.cpp
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@ -168,7 +168,8 @@ struct ScopedAioContext {
struct UsbFfsConnection : public Connection {
UsbFfsConnection(unique_fd control, unique_fd read, unique_fd write,
std::promise<void> destruction_notifier)
: stopped_(false),
: worker_started_(false),
stopped_(false),
destruction_notifier_(std::move(destruction_notifier)),
control_fd_(std::move(control)),
read_fd_(std::move(read)),
@ -194,6 +195,7 @@ struct UsbFfsConnection : public Connection {
// We need to explicitly close our file descriptors before we notify our destruction,
// because the thread listening on the future will immediately try to reopen the endpoint.
aio_context_.reset();
control_fd_.reset();
read_fd_.reset();
write_fd_.reset();
@ -274,11 +276,16 @@ struct UsbFfsConnection : public Connection {
{ .fd = control_fd_.get(), .events = POLLIN, .revents = 0 },
{ .fd = monitor_event_fd_.get(), .events = POLLIN, .revents = 0 },
};
int rc = TEMP_FAILURE_RETRY(adb_poll(pfd, 2, -1));
// If we don't see our first bind within a second, try again.
int timeout_ms = bound ? -1 : 1000;
int rc = TEMP_FAILURE_RETRY(adb_poll(pfd, 2, timeout_ms));
if (rc == -1) {
PLOG(FATAL) << "poll on USB control fd failed";
} else if (rc == 0) {
LOG(FATAL) << "poll on USB control fd returned 0";
LOG(WARNING) << "timed out while waiting for FUNCTIONFS_BIND, trying again";
break;
}
if (pfd[1].revents) {
@ -330,13 +337,13 @@ struct UsbFfsConnection : public Connection {
}
StopWorker();
aio_context_.reset();
read_fd_.reset();
write_fd_.reset();
HandleError("monitor thread finished");
});
}
void StartWorker() {
CHECK(!worker_started_);
worker_started_ = true;
worker_thread_ = std::thread([this]() {
adb_thread_setname("UsbFfs-worker");
for (size_t i = 0; i < kUsbReadQueueDepth; ++i) {
@ -361,6 +368,10 @@ struct UsbFfsConnection : public Connection {
}
void StopWorker() {
if (!worker_started_) {
return;
}
pthread_t worker_thread_handle = worker_thread_.native_handle();
while (true) {
int rc = pthread_kill(worker_thread_handle, kInterruptionSignal);
@ -590,6 +601,8 @@ struct UsbFfsConnection : public Connection {
}
std::thread monitor_thread_;
bool worker_started_;
std::thread worker_thread_;
std::atomic<bool> stopped_;