openharmony/distributedhardware_distributed_input
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Description:fix fd leak and reduce cpu use rate

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Match-id-1c39041f702b3b057abc95718dc7077b3b4e1cff
This commit is contained in:
xxxx
2023-01-05 19:11:51 +08:00
parent 42e540ae79
commit ae84976f24
5 changed files with 41 additions and 19 deletions
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common/include/input_hub.cpp
+27 -10
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@@ -381,7 +381,7 @@ void InputHub::GetDeviceHandler()
int32_t InputHub::RefreshEpollItem(bool isSleep)
{
pendingEventIndex_ = 0;
int pollResult = epoll_wait(epollFd_, mPendingEventItems, EPOLL_MAX_EVENTS, 0);
int pollResult = epoll_wait(epollFd_, mPendingEventItems, EPOLL_MAX_EVENTS, EPOLL_WAITTIME);
if (pollResult == 0) {
// Timed out.
pendingEventCount_ = 0;
@@ -445,15 +445,31 @@ void InputHub::ScanInputDevices(const std::string& dirname)
closedir(dir);
}
void InputHub::CloseFd(int fd)
{
if (fd < 0) {
DHLOGE("No fd need to be closed.");
return;
}
close(fd);
fd = -1;
}
bool InputHub::IsDeviceRegistered(const std::string& devicePath)
{
std::unique_lock<std::mutex> deviceLock(devicesMutex_);
for (const auto& [deviceId, device] : devices_) {
if (device->path == devicePath) {
return true; // device was already registered
}
}
return false;
}
int32_t InputHub::OpenInputDeviceLocked(const std::string& devicePath)
{
{
std::unique_lock<std::mutex> deviceLock(devicesMutex_);
for (const auto& [deviceId, device] : devices_) {
if (device->path == devicePath) {
return DH_SUCCESS; // device was already registered
}
}
if (IsDeviceRegistered(devicePath)) {
return DH_SUCCESS;
}
std::unique_lock<std::mutex> my_lock(operationMutex_);
@@ -481,11 +497,13 @@ int32_t InputHub::OpenInputDeviceLocked(const std::string& devicePath)
}
if (count >= MAX_RETRY_COUNT) {
DHLOGE("could not open %s, %s\n", devicePath.c_str(), ConvertErrNo().c_str());
CloseFd(fd);
return ERR_DH_INPUT_HUB_OPEN_DEVICEPATH_FAIL;
}
InputDevice identifier;
if (QueryInputDeviceInfo(fd, identifier) < 0) {
CloseFd(fd);
return ERR_DH_INPUT_HUB_QUERY_INPUT_DEVICE_INFO_FAIL;
}
GenerateDescriptor(identifier);
@@ -496,6 +514,7 @@ int32_t InputHub::OpenInputDeviceLocked(const std::string& devicePath)
RecordDeviceLog(deviceId, devicePath, identifier);
if (MakeDevice(fd, std::move(device)) < 0) {
CloseFd(fd);
return ERR_DH_INPUT_HUB_MAKE_DEVICE_FAIL;
}
@@ -522,14 +541,12 @@ int32_t InputHub::QueryInputDeviceInfo(int fd, InputDevice& identifier)
int driverVersion;
if (ioctl(fd, EVIOCGVERSION, &driverVersion)) {
DHLOGE("could not get driver version for %s\n", ConvertErrNo().c_str());
close(fd);
return ERR_DH_INPUT_HUB_QUERY_INPUT_DEVICE_INFO_FAIL;
}
// Get device identifier.
struct input_id inputId;
if (ioctl(fd, EVIOCGID, &inputId)) {
DHLOGE("could not get device input id for %s\n", ConvertErrNo().c_str());
close(fd);
return ERR_DH_INPUT_HUB_QUERY_INPUT_DEVICE_INFO_FAIL;
}
identifier.bus = inputId.bustype;