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// Copyright 2022 The Pigweed Authors
//
// 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
//
// https://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 "pw_assert/check.h"
#include "pw_log/glog_adapter_config.h"
#include "pw_log/levels.h"
#include "pw_log/log.h"
#include "pw_string/string_builder.h"
namespace pw::log::internal {
class GlogStreamingLog {
public:
GlogStreamingLog() = default;
template <typename T>
GlogStreamingLog& operator<<(const T& value) {
string_builder_ << value;
return *this;
}
protected:
pw::StringBuffer<PW_LOG_CFG_GLOG_BUFFER_SIZE_BYTES> string_builder_;
};
} // namespace pw::log::internal
// Declares a unique GlogStreamingLog class definition with a destructor which
// matches the desired pw_log_level.
#define _PW_LOG_GLOG_DECLARATION_PW_LOG(pw_log_level, unique) \
class unique : public ::pw::log::internal::GlogStreamingLog { \
public: \
~unique() { \
PW_HANDLE_LOG( \
pw_log_level, PW_LOG_FLAGS, "%s", string_builder_.c_str()); \
} \
}
// Declares a unique GlogStreamingLog class definition with a destructor which
// invokes PW_CRASH.
#define _PW_LOG_GLOG_DECLARATION_PW_CRASH(unique) \
class unique : public ::pw::log::internal::GlogStreamingLog { \
public: \
~unique() { PW_CRASH("%s", string_builder_.c_str()); } \
}
// Dispatching macros to translate the glog level to PW_LOG and PW_CRASH.
#define _PW_LOG_GLOG_DECLARATION_DEBUG(unique) \
_PW_LOG_GLOG_DECLARATION_PW_LOG(PW_LOG_LEVEL_DEBUG, unique)
#define _PW_LOG_GLOG_DECLARATION_INFO(unique) \
_PW_LOG_GLOG_DECLARATION_PW_LOG(PW_LOG_LEVEL_INFO, unique)
#define _PW_LOG_GLOG_DECLARATION_WARNING(unique) \
_PW_LOG_GLOG_DECLARATION_PW_LOG(PW_LOG_LEVEL_WARN, unique)
#define _PW_LOG_GLOG_DECLARATION_ERROR(unique) \
_PW_LOG_GLOG_DECLARATION_PW_LOG(PW_LOG_LEVEL_ERROR, unique)
#define _PW_LOG_GLOG_DECLARATION_FATAL(unique) \
_PW_LOG_GLOG_DECLARATION_PW_CRASH(unique)
#if defined(NDEBUG)
#define _PW_LOG_GLOG_DECLARATION_DFATAL(unique) \
_PW_LOG_GLOG_DECLARATION_PW_LOG(PW_LOG_LEVEL_ERROR, unique)
#else // !defined(NDEBUG)
#define _PW_LOG_GLOG_DECLARATION_DFATAL(unique) \
_PW_LOG_GLOG_DECLARATION_PW_CRASH(unique)
#endif // defined(NDEBUG)
#define _PW_LOG_GLOG(glog_declaration, unique) \
glog_declaration(unique); \
unique()
#define _PW_LOG_GLOG_IF(glog_declaration, expr, unique) \
glog_declaration(unique); \
if (!(expr)) { \
} else \
unique()
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