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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef BASE_APPLE_MACH_LOGGING_H_
#define BASE_APPLE_MACH_LOGGING_H_
#include <mach/mach.h>
#include "base/base_export.h"
#include "base/logging.h"
#include "build/blink_buildflags.h"
#include "build/build_config.h"
// Use the MACH_LOG family of macros along with a mach_error_t (kern_return_t)
// containing a Mach error. The error value will be decoded so that logged
// messages explain the error.
//
// Use the BOOTSTRAP_LOG family of macros specifically for errors that occur
// while interoperating with the bootstrap subsystem. These errors will first
// be looked up as bootstrap error messages. If no match is found, they will
// be treated as generic Mach errors, as in MACH_LOG.
//
// Examples:
//
// kern_return_t kr = mach_timebase_info(&info);
// if (kr != KERN_SUCCESS) {
// MACH_LOG(ERROR, kr) << "mach_timebase_info";
// }
//
// kr = vm_deallocate(task, address, size);
// MACH_DCHECK(kr == KERN_SUCCESS, kr) << "vm_deallocate";
namespace logging {
class BASE_EXPORT MachLogMessage : public logging::LogMessage {
public:
MachLogMessage(const char* file_path,
int line,
LogSeverity severity,
mach_error_t mach_err);
MachLogMessage(const MachLogMessage&) = delete;
MachLogMessage& operator=(const MachLogMessage&) = delete;
~MachLogMessage() override;
protected:
void AppendError();
private:
mach_error_t mach_err_;
};
class BASE_EXPORT MachLogMessageFatal final : public MachLogMessage {
public:
using MachLogMessage::MachLogMessage;
[[noreturn]] ~MachLogMessageFatal() override;
};
} // namespace logging
#if DCHECK_IS_ON()
#define MACH_DVLOG_IS_ON(verbose_level) VLOG_IS_ON(verbose_level)
#else
#define MACH_DVLOG_IS_ON(verbose_level) 0
#endif
#define MACH_LOG_STREAM(severity, mach_err) \
COMPACT_GOOGLE_LOG_EX_##severity(MachLogMessage, mach_err).stream()
#define MACH_VLOG_STREAM(verbose_level, mach_err) \
logging::MachLogMessage(__FILE__, __LINE__, -verbose_level, mach_err).stream()
#define MACH_LOG(severity, mach_err) \
LAZY_STREAM(MACH_LOG_STREAM(severity, mach_err), LOG_IS_ON(severity))
#define MACH_LOG_IF(severity, condition, mach_err) \
LAZY_STREAM(MACH_LOG_STREAM(severity, mach_err), \
LOG_IS_ON(severity) && (condition))
#define MACH_VLOG(verbose_level, mach_err) \
LAZY_STREAM(MACH_VLOG_STREAM(verbose_level, mach_err), \
VLOG_IS_ON(verbose_level))
#define MACH_VLOG_IF(verbose_level, condition, mach_err) \
LAZY_STREAM(MACH_VLOG_STREAM(verbose_level, mach_err), \
VLOG_IS_ON(verbose_level) && (condition))
#define MACH_CHECK(condition, mach_err) \
LAZY_STREAM(MACH_LOG_STREAM(FATAL, mach_err), !(condition)) \
<< "Check failed: " #condition << ". "
#define MACH_DLOG(severity, mach_err) \
LAZY_STREAM(MACH_LOG_STREAM(severity, mach_err), DLOG_IS_ON(severity))
#define MACH_DLOG_IF(severity, condition, mach_err) \
LAZY_STREAM(MACH_LOG_STREAM(severity, mach_err), \
DLOG_IS_ON(severity) && (condition))
#define MACH_DVLOG(verbose_level, mach_err) \
LAZY_STREAM(MACH_VLOG_STREAM(verbose_level, mach_err), \
MACH_DVLOG_IS_ON(verbose_level))
#define MACH_DVLOG_IF(verbose_level, condition, mach_err) \
LAZY_STREAM(MACH_VLOG_STREAM(verbose_level, mach_err), \
MACH_DVLOG_IS_ON(verbose_level) && (condition))
#define MACH_DCHECK(condition, mach_err) \
LAZY_STREAM(MACH_LOG_STREAM(FATAL, mach_err), \
DCHECK_IS_ON() && !(condition)) \
<< "Check failed: " #condition << ". "
#if BUILDFLAG(USE_BLINK)
namespace logging {
class BASE_EXPORT BootstrapLogMessage : public logging::LogMessage {
public:
BootstrapLogMessage(const char* file_path,
int line,
LogSeverity severity,
kern_return_t bootstrap_err);
BootstrapLogMessage(const BootstrapLogMessage&) = delete;
BootstrapLogMessage& operator=(const BootstrapLogMessage&) = delete;
~BootstrapLogMessage() override;
protected:
void AppendError();
private:
kern_return_t bootstrap_err_;
};
class BASE_EXPORT BootstrapLogMessageFatal final : public BootstrapLogMessage {
public:
using BootstrapLogMessage::BootstrapLogMessage;
[[noreturn]] ~BootstrapLogMessageFatal() override;
};
} // namespace logging
#define BOOTSTRAP_DVLOG_IS_ON MACH_DVLOG_IS_ON
#define BOOTSTRAP_LOG_STREAM(severity, bootstrap_err) \
COMPACT_GOOGLE_LOG_EX_##severity(BootstrapLogMessage, bootstrap_err).stream()
#define BOOTSTRAP_VLOG_STREAM(verbose_level, bootstrap_err) \
logging::BootstrapLogMessage(__FILE__, __LINE__, -verbose_level, \
bootstrap_err) \
.stream()
#define BOOTSTRAP_LOG(severity, bootstrap_err) \
LAZY_STREAM(BOOTSTRAP_LOG_STREAM(severity, bootstrap_err), \
LOG_IS_ON(severity))
#define BOOTSTRAP_LOG_IF(severity, condition, bootstrap_err) \
LAZY_STREAM(BOOTSTRAP_LOG_STREAM(severity, bootstrap_err), \
LOG_IS_ON(severity) && (condition))
#define BOOTSTRAP_VLOG(verbose_level, bootstrap_err) \
LAZY_STREAM(BOOTSTRAP_VLOG_STREAM(verbose_level, bootstrap_err), \
VLOG_IS_ON(verbose_level))
#define BOOTSTRAP_VLOG_IF(verbose_level, condition, bootstrap_err) \
LAZY_STREAM(BOOTSTRAP_VLOG_STREAM(verbose_level, bootstrap_err), \
VLOG_IS_ON(verbose_level) && (condition))
#define BOOTSTRAP_CHECK(condition, bootstrap_err) \
LAZY_STREAM(BOOTSTRAP_LOG_STREAM(FATAL, bootstrap_err), !(condition)) \
<< "Check failed: " #condition << ". "
#define BOOTSTRAP_DLOG(severity, bootstrap_err) \
LAZY_STREAM(BOOTSTRAP_LOG_STREAM(severity, bootstrap_err), \
DLOG_IS_ON(severity))
#define BOOTSTRAP_DLOG_IF(severity, condition, bootstrap_err) \
LAZY_STREAM(BOOTSTRAP_LOG_STREAM(severity, bootstrap_err), \
DLOG_IS_ON(severity) && (condition))
#define BOOTSTRAP_DVLOG(verbose_level, bootstrap_err) \
LAZY_STREAM(BOOTSTRAP_VLOG_STREAM(verbose_level, bootstrap_err), \
BOOTSTRAP_DVLOG_IS_ON(verbose_level))
#define BOOTSTRAP_DVLOG_IF(verbose_level, condition, bootstrap_err) \
LAZY_STREAM(BOOTSTRAP_VLOG_STREAM(verbose_level, bootstrap_err), \
BOOTSTRAP_DVLOG_IS_ON(verbose_level) && (condition))
#define BOOTSTRAP_DCHECK(condition, bootstrap_err) \
LAZY_STREAM(BOOTSTRAP_LOG_STREAM(FATAL, bootstrap_err), \
DCHECK_IS_ON() && !(condition)) \
<< "Check failed: " #condition << ". "
#endif // BUILDFLAG(USE_BLINK)
#endif // BASE_APPLE_MACH_LOGGING_H_
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