blob: 486a44aa94298aae5d03e6a5387dc207b1fba744 [file] [log] [blame]
/*
* Copyright (C) 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "src/android_internal/atrace_hal.h"
#include <android/hardware/atrace/1.0/IAtraceDevice.h>
#include <iostream>
namespace perfetto {
namespace android_internal {
using android::hardware::hidl_string;
using android::hardware::hidl_vec;
using android::hardware::Return;
using android::hardware::atrace::V1_0::IAtraceDevice;
using android::hardware::atrace::V1_0::TracingCategory;
namespace {
android::sp<IAtraceDevice> g_atraceHal;
bool GetService() {
if (!g_atraceHal)
g_atraceHal = IAtraceDevice::getService();
return g_atraceHal != nullptr;
}
} // namespace
bool ListCategories(TracingVendorCategory* categories, size_t* size_of_arr) {
const size_t in_array_size = *size_of_arr;
*size_of_arr = 0;
if (!GetService())
return false;
auto category_cb = [categories, size_of_arr,
&in_array_size](hidl_vec<TracingCategory> r) {
*size_of_arr = std::min(in_array_size, r.size());
for (int i = 0; i < *size_of_arr; ++i) {
const TracingCategory& cat = r[i];
TracingVendorCategory& result = categories[i];
strncpy(result.name, cat.name.c_str(), sizeof(result.name));
strncpy(result.description, cat.description.c_str(),
sizeof(result.description));
result.name[sizeof(result.name) - 1] = '\0';
result.description[sizeof(result.description) - 1] = '\0';
}
};
g_atraceHal->listCategories(category_cb);
return true;
}
bool EnableCategories(const char** categories, size_t categories_count) {
if (!GetService())
return false;
std::vector<hidl_string> args;
args.resize(categories_count);
for (size_t i = 0; i < categories_count; ++i) {
args[i] = categories[i];
}
g_atraceHal->enableCategories(args);
// TODO(hjd): Check status.
return true;
}
bool DisableAllCategories() {
if (!GetService())
return false;
g_atraceHal->disableAllCategories();
// TODO(hjd): Check status.
return true;
}
void ForgetService() {
g_atraceHal = nullptr;
}
} // namespace android_internal
} // namespace perfetto