Merge "Remove dependency gd::handler on eventfd with wrapped API" (195d17bf) · Commits · e / os / android_packages_modules_Bluetooth

system/gd/Android.bp

+2 −0

Original line number	Diff line number	Diff line
		@@ -183,6 +183,7 @@ cc_defaults {
		":BluetoothL2capSources",
		":BluetoothMetricsSources",
		":BluetoothNeighborSources",
		":BluetoothOsSources",
		":BluetoothPacketSources",
		":BluetoothShimSources",
		":BluetoothSecuritySources",
		@@ -354,6 +355,7 @@ cc_test {
		":BluetoothHciUnitTestSources",
		":BluetoothL2capUnitTestSources",
		":BluetoothMetricsTestSources",
		":BluetoothOsTestSources",
		":BluetoothPacketTestSources",
		":BluetoothShimTestSources",
		":BluetoothSecurityUnitTestSources",

system/gd/os/Android.bp

+14 −2

Original line number	Diff line number	Diff line
		@@ -7,6 +7,13 @@ package {
		default_applicable_licenses: ["system_bt_license"],
		}

		filegroup {
		name: "BluetoothOsSources",
		srcs: [
		"handler.cc",
		],
		}

		filegroup {
		name: "BluetoothOsSources_android",
		srcs: [
		@@ -35,6 +42,13 @@ filegroup {
		],
		}

		filegroup {
		name: "BluetoothOsTestSources",
		srcs: [
		"handler_unittest.cc",
		],
		}

		filegroup {
		name: "BluetoothOsTestSources_host",
		srcs: [
		@@ -48,7 +62,6 @@ filegroup {
		srcs: [
		"linux_generic/alarm.cc",
		"linux_generic/files.cc",
		"linux_generic/handler.cc",
		"linux_generic/reactor.cc",
		"linux_generic/repeating_alarm.cc",
		"linux_generic/reactive_semaphore.cc",
		@@ -62,7 +75,6 @@ filegroup {
		srcs: [
		"linux_generic/alarm_unittest.cc",
		"linux_generic/files_test.cc",
		"linux_generic/handler_unittest.cc",
		"linux_generic/queue_unittest.cc",
		"linux_generic/reactor_unittest.cc",
		"linux_generic/repeating_alarm_unittest.cc",

system/gd/os/BUILD.gn

+0 −1

Original line number	Diff line number	Diff line
		@@ -29,7 +29,6 @@ source_set("BluetoothOsSources_linux_generic") {
		sources = [
		"linux_generic/alarm.cc",
		"linux_generic/files.cc",
		"linux_generic/handler.cc",
		"linux_generic/reactive_semaphore.cc",
		"linux_generic/reactor.cc",
		"linux_generic/repeating_alarm.cc",

system/gd/os/linux_generic/handler.cc→system/gd/os/handler.cc

+8 −24

Original line number	Diff line number	Diff line
		@@ -16,9 +16,6 @@

		#include "os/handler.h"

		#include <sys/eventfd.h>
		#include <unistd.h>

		#include <cstring>

		#include "common/bind.h"
		@@ -27,19 +24,14 @@
		#include "os/reactor.h"
		#include "os/utils.h"

		#ifndef EFD_SEMAPHORE
		#define EFD_SEMAPHORE 1
		#endif

		namespace bluetooth {
		namespace os {
		using common::OnceClosure;

		Handler::Handler(Thread* thread)
		: tasks_(new std::queue<OnceClosure>()), thread_(thread), fd_(eventfd(0, EFD_SEMAPHORE \| EFD_NONBLOCK)) {
		ASSERT(fd_ != -1);
		Handler::Handler(Thread* thread) : tasks_(new std::queue<OnceClosure>()), thread_(thread) {
		event_ = thread_->GetReactor()->NewEvent();
		reactable_ = thread_->GetReactor()->Register(
		fd_, common::Bind(&Handler::handle_next_event, common::Unretained(this)), common::Closure());
		event_->Id(), common::Bind(&Handler::handle_next_event, common::Unretained(this)), common::Closure());
		}

		Handler::~Handler() {
		@@ -47,10 +39,7 @@ Handler::~Handler() {
		std::lock_guard<std::mutex> lock(mutex_);
		ASSERT_LOG(was_cleared(), "Handlers must be cleared before they are destroyed");
		}

		int close_status;
		RUN_NO_INTR(close_status = close(fd_));
		ASSERT(close_status != -1);
		event_->Close();
		}

		void Handler::Post(OnceClosure closure) {
		@@ -62,9 +51,7 @@ void Handler::Post(OnceClosure closure) {
		}
		tasks_->emplace(std::move(closure));
		}
		uint64_t val = 1;
		auto write_result = eventfd_write(fd_, val);
		ASSERT(write_result != -1);
		event_->Notify();
		}

		void Handler::Clear() {
		@@ -76,9 +63,7 @@ void Handler::Clear() {
		}
		delete tmp;

		uint64_t val;
		while (eventfd_read(fd_, &val) == 0) {
		}
		event_->Clear();

		thread_->GetReactor()->Unregister(reactable_);
		reactable_ = nullptr;
		@@ -93,13 +78,12 @@ void Handler::handle_next_event() {
		common::OnceClosure closure;
		{
		std::lock_guard<std::mutex> lock(mutex_);
		uint64_t val = 0;
		auto read_result = eventfd_read(fd_, &val);
		bool has_data = event_->Read();

		if (was_cleared()) {
		return;
		}
		ASSERT_LOG(read_result != -1, "eventfd read error %d %s", errno, strerror(errno));
		ASSERT_LOG(has_data, "Notified for work but no work available");

		closure = std::move(tasks_->front());
		tasks_->pop();

system/gd/os/handler.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -102,7 +102,7 @@ class Handler : public common::IPostableContext {
		};
		std::queue<common::OnceClosure>* tasks_;
		Thread* thread_;
		int fd_;
		std::unique_ptr<Reactor::Event> event_;
		Reactor::Reactable* reactable_;
		mutable std::mutex mutex_;
		void handle_next_event();