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/*
* Copyright (C) 2021 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.
*/
#pragma once
#include <android-base/logging.h>
#include <string_view>
#include <utils/Trace.h>
// #define LOG_FUNC
#define TRACE_FUNC
#ifdef TRACE_FUNC
#define DEBUG_FUNC() constexpr static FullMethodName __kFullNameObj__ = \
FullMethodName{ __PRETTY_FUNCTION__ }; \
constexpr static const char *__kFullName__ = __kFullNameObj__.get(); \
ATRACE_NAME(__kFullName__)
#define DEBUG_DISPLAY_FUNC(display) \
constexpr static FullMethodName __kFullNameObj__{__PRETTY_FUNCTION__}; \
constexpr static const char *__kFullName__ = __kFullNameObj__.get(); \
if (CC_UNLIKELY(ATRACE_ENABLED())) { \
::android::String8 _traceName_; \
_traceName_.appendFormat("%s(display=%" PRId64 ",..)", __kFullName__, display); \
ATRACE_BEGIN(_traceName_.c_str()); \
} \
ScopedTraceEnder _traceEnder_
#else
#ifdef LOG_FUNC
#define DEBUG_DISPLAY_FUNC(display) DebugFunction _dbgFnObj_(__func__, display)
#else
#define DEBUG_DISPLAY_FUNC(display)
#endif
#define DEBUG_FUNC() DEBUG_DISPLAY_FUNC(std::nullopt)
#endif
#define RET_IF_ERR(expr) \
do { \
auto err = (expr); \
if (err) [[unlikely]] return err; \
} while (0)
#define TO_BINDER_STATUS(x) x == 0 \
? ndk::ScopedAStatus::ok() \
: ndk::ScopedAStatus::fromServiceSpecificError(x)
namespace aidl::android::hardware::graphics::composer3::impl {
class ScopedTraceEnder {
public:
~ScopedTraceEnder() { ATRACE_END(); }
};
class DebugFunction {
public:
DebugFunction(const char *name, std::optional<int64_t> display)
: mName(name), mDisplay(display) {
if (mDisplay) {
LOG(INFO) << mName << "(display=" << *mDisplay << ",..) Enter";
} else {
LOG(INFO) << mName << " Enter";
}
}
~DebugFunction() {
if (mDisplay) {
LOG(INFO) << mName << "(display=" << *mDisplay << ",..) Exit";
} else {
LOG(INFO) << mName << " Exit";
}
}
private:
const char* mName;
std::optional<int64_t> mDisplay;
};
class FullMethodName {
public:
constexpr FullMethodName(const std::string_view prettyName) : mBuf() {
// remove every thing before 'impl::'
auto start = prettyName.find("impl::");
if (start == prettyName.npos) {
start = 0;
}
// remove everything after '('
auto end = prettyName.rfind('(');
if (end == prettyName.npos) {
end = prettyName.length();
}
auto len = std::min(end - start, mBuf.size());
// to a null-terminated string
// prettyName.copy(mBuf.data(), len, start) is available in c++20
for (int i = 0; i < len; ++i) {
mBuf[i] = prettyName[start + i];
}
}
constexpr const char *get() const {
return mBuf.data();
}
private:
std::array<char, 256> mBuf;
};
} // namespace aidl::android::hardware::graphics::composer3::impl
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