1// Copyright (c) 2012 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#ifndef BASE_MAC_MAC_LOGGING_H_ 6#define BASE_MAC_MAC_LOGGING_H_ 7 8#include "base/logging.h" 9#include "util/build_config.h" 10 11#if defined(OS_IOS) 12#include <MacTypes.h> 13#else 14#include <libkern/OSTypes.h> 15#endif 16 17// Use the OSSTATUS_LOG family to log messages related to errors in Mac OS X 18// system routines that report status via an OSStatus or OSErr value. It is 19// similar to the PLOG family which operates on errno, but because there is no 20// global (or thread-local) OSStatus or OSErr value, the specific error must 21// be supplied as an argument to the OSSTATUS_LOG macro. The message logged 22// will contain the symbolic constant name corresponding to the status value, 23// along with the value itself. 24// 25// OSErr is just an older 16-bit form of the newer 32-bit OSStatus. Despite 26// the name, OSSTATUS_LOG can be used equally well for OSStatus and OSErr. 27 28namespace logging { 29 30// Returns a UTF8 description from an OS X Status error. 31std::string DescriptionFromOSStatus(OSStatus err); 32 33class OSStatusLogMessage : public logging::LogMessage { 34 public: 35 OSStatusLogMessage(const char* file_path, 36 int line, 37 LogSeverity severity, 38 OSStatus status); 39 ~OSStatusLogMessage(); 40 41 private: 42 OSStatus status_; 43 44 OSStatusLogMessage(const OSStatusLogMessage&) = delete; 45 OSStatusLogMessage& operator=(const OSStatusLogMessage&) = delete; 46}; 47 48} // namespace logging 49 50#define OSSTATUS_LOG_STREAM(severity, status) \ 51 COMPACT_GOOGLE_LOG_EX_##severity(OSStatusLogMessage, status).stream() 52 53#define OSSTATUS_LOG(severity, status) \ 54 LAZY_STREAM(OSSTATUS_LOG_STREAM(severity, status), LOG_IS_ON(severity)) 55#define OSSTATUS_LOG_IF(severity, condition, status) \ 56 LAZY_STREAM(OSSTATUS_LOG_STREAM(severity, status), \ 57 LOG_IS_ON(severity) && (condition)) 58 59#define OSSTATUS_CHECK(condition, status) \ 60 LAZY_STREAM(OSSTATUS_LOG_STREAM(FATAL, status), !(condition)) \ 61 << "Check failed: " #condition << ". " 62 63#define OSSTATUS_DLOG(severity, status) \ 64 LAZY_STREAM(OSSTATUS_LOG_STREAM(severity, status), DLOG_IS_ON(severity)) 65#define OSSTATUS_DLOG_IF(severity, condition, status) \ 66 LAZY_STREAM(OSSTATUS_LOG_STREAM(severity, status), \ 67 DLOG_IS_ON(severity) && (condition)) 68 69#define OSSTATUS_DCHECK(condition, status) \ 70 LAZY_STREAM(OSSTATUS_LOG_STREAM(FATAL, status), \ 71 DCHECK_IS_ON() && !(condition)) \ 72 << "Check failed: " #condition << ". " 73 74#endif // BASE_MAC_MAC_LOGGING_H_ 75