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 28 namespace logging { 29 30 // Returns a UTF8 description from an OS X Status error. 31 std::string DescriptionFromOSStatus(OSStatus err); 32 33 class 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