| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "base/logging.h" |
| |
| #include <limits.h> |
| |
| #include "base/macros.h" |
| #include "base/trace_event/trace_event.h" |
| #include "build/build_config.h" |
| |
| #if defined(STARBOARD) |
| #include "base/files/file_starboard.h" |
| #include "starboard/client_porting/eztime/eztime.h" |
| #include "starboard/common/log.h" |
| #include "starboard/common/mutex.h" |
| #include "starboard/configuration.h" |
| #include "starboard/configuration_constants.h" |
| #include "starboard/file.h" |
| #include "starboard/system.h" |
| #include "starboard/time.h" |
| typedef SbFile FileHandle; |
| typedef SbMutex MutexHandle; |
| #else |
| #if defined(OS_WIN) |
| #include <io.h> |
| #include <windows.h> |
| typedef HANDLE FileHandle; |
| typedef HANDLE MutexHandle; |
| // Windows warns on using write(). It prefers _write(). |
| #define write(fd, buf, count) _write(fd, buf, static_cast<unsigned int>(count)) |
| // Windows doesn't define STDERR_FILENO. Define it here. |
| #define STDERR_FILENO 2 |
| |
| #elif defined(OS_MACOSX) |
| // In MacOS 10.12 and iOS 10.0 and later ASL (Apple System Log) was deprecated |
| // in favor of OS_LOG (Unified Logging). |
| #include <AvailabilityMacros.h> |
| #if defined(OS_IOS) |
| #if !defined(__IPHONE_10_0) || __IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_10_0 |
| #define USE_ASL |
| #endif |
| #else // !defined(OS_IOS) |
| #if !defined(MAC_OS_X_VERSION_10_12) || \ |
| MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_12 |
| #define USE_ASL |
| #endif |
| #endif // defined(OS_IOS) |
| |
| #if defined(USE_ASL) |
| #include <asl.h> |
| #else |
| #include <os/log.h> |
| #endif |
| |
| #include <CoreFoundation/CoreFoundation.h> |
| #include <mach/mach.h> |
| #include <mach/mach_time.h> |
| #include <mach-o/dyld.h> |
| |
| #elif defined(OS_POSIX) || defined(OS_FUCHSIA) |
| #if defined(OS_NACL) |
| #include <sys/time.h> // timespec doesn't seem to be in <time.h> |
| #endif |
| #include <time.h> |
| #endif |
| |
| #if defined(OS_FUCHSIA) |
| #include <zircon/process.h> |
| #include <zircon/syscalls.h> |
| #endif |
| |
| #if defined(OS_ANDROID) |
| #include <android/log.h> |
| #endif |
| |
| #if defined(OS_POSIX) || defined(OS_FUCHSIA) |
| #include <errno.h> |
| #include <paths.h> |
| #include <pthread.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sys/stat.h> |
| #include <unistd.h> |
| #define MAX_PATH PATH_MAX |
| typedef FILE* FileHandle; |
| typedef pthread_mutex_t* MutexHandle; |
| #endif |
| #endif // defined(STARBOARD) |
| |
| #include <algorithm> |
| #include <cstring> |
| #include <ctime> |
| #include <iomanip> |
| #include <ostream> |
| #include <string> |
| #include <utility> |
| |
| #include "base/base_switches.h" |
| #include "base/callback.h" |
| #include "base/command_line.h" |
| #include "base/containers/stack.h" |
| #include "base/debug/activity_tracker.h" |
| #include "base/debug/alias.h" |
| #include "base/debug/debugger.h" |
| #include "base/debug/stack_trace.h" |
| #include "base/lazy_instance.h" |
| #include "base/posix/eintr_wrapper.h" |
| #include "base/strings/string_piece.h" |
| #include "base/strings/string_util.h" |
| #include "base/strings/stringprintf.h" |
| #include "base/strings/sys_string_conversions.h" |
| #include "base/strings/utf_string_conversions.h" |
| #include "base/synchronization/lock_impl.h" |
| #include "base/threading/platform_thread.h" |
| #include "base/vlog.h" |
| |
| #if defined(OS_POSIX) || defined(OS_FUCHSIA) |
| #include "base/posix/safe_strerror.h" |
| #include "starboard/common/string.h" |
| #include "starboard/types.h" |
| #endif |
| |
| namespace logging { |
| |
| namespace { |
| |
| VlogInfo* g_vlog_info = nullptr; |
| VlogInfo* g_vlog_info_prev = nullptr; |
| |
| const char* const log_severity_names[] = {"INFO", "WARNING", "ERROR", "FATAL"}; |
| static_assert(LOG_NUM_SEVERITIES == arraysize(log_severity_names), |
| "Incorrect number of log_severity_names"); |
| |
| const char* log_severity_name(int severity) { |
| if (severity >= 0 && severity < LOG_NUM_SEVERITIES) |
| return log_severity_names[severity]; |
| return "UNKNOWN"; |
| } |
| |
| #if defined(OFFICIAL_BUILD) |
| int g_min_log_level = LOG_FATAL; |
| #else |
| int g_min_log_level = LOG_INFO; |
| #endif |
| |
| LoggingDestination g_logging_destination = LOG_DEFAULT; |
| |
| // For LOG_ERROR and above, always print to stderr. |
| const int kAlwaysPrintErrorLevel = LOG_ERROR; |
| |
| // Which log file to use? This is initialized by InitLogging or |
| // will be lazily initialized to the default value when it is |
| // first needed. |
| #if defined(OS_WIN) |
| typedef std::wstring PathString; |
| #elif defined(OS_POSIX) || defined(OS_FUCHSIA) || defined(STARBOARD) |
| typedef std::string PathString; |
| #endif |
| PathString* g_log_file_name = nullptr; |
| |
| // This file is lazily opened and the handle may be nullptr |
| FileHandle g_log_file = nullptr; |
| |
| // What should be prepended to each message? |
| bool g_log_process_id = false; |
| #ifdef STARBOARD |
| // Cobalt has been used to logging thread ID for long and there is no |
| // strong reason to stop doing so. |
| bool g_log_thread_id = true; |
| #else |
| bool g_log_thread_id = false; |
| #endif |
| bool g_log_timestamp = true; |
| bool g_log_tickcount = false; |
| const char* g_log_prefix = nullptr; |
| |
| // Should we pop up fatal debug messages in a dialog? |
| bool show_error_dialogs = false; |
| |
| // An assert handler override specified by the client to be called instead of |
| // the debug message dialog and process termination. Assert handlers are stored |
| // in stack to allow overriding and restoring. |
| base::LazyInstance<base::stack<LogAssertHandlerFunction>>::Leaky |
| log_assert_handler_stack = LAZY_INSTANCE_INITIALIZER; |
| |
| // A log message handler that gets notified of every log message we process. |
| LogMessageHandlerFunction log_message_handler = nullptr; |
| |
| // Helper functions to wrap platform differences. |
| |
| int32_t CurrentProcessId() { |
| #if defined(STARBOARD) |
| return 0; |
| #else |
| #if defined(OS_WIN) |
| return GetCurrentProcessId(); |
| #elif defined(OS_FUCHSIA) |
| zx_info_handle_basic_t basic = {}; |
| zx_object_get_info(zx_process_self(), ZX_INFO_HANDLE_BASIC, &basic, |
| sizeof(basic), nullptr, nullptr); |
| return basic.koid; |
| #elif defined(OS_POSIX) |
| return getpid(); |
| #endif |
| #endif |
| } |
| |
| uint64_t TickCount() { |
| #if defined(STARBOARD) |
| return static_cast<uint64_t>(SbTimeGetMonotonicNow()); |
| #else |
| #if defined(OS_WIN) |
| return GetTickCount(); |
| #elif defined(OS_FUCHSIA) |
| return zx_clock_get(ZX_CLOCK_MONOTONIC) / |
| static_cast<zx_time_t>(base::Time::kNanosecondsPerMicrosecond); |
| #elif defined(OS_MACOSX) |
| return mach_absolute_time(); |
| #elif defined(OS_NACL) |
| // NaCl sadly does not have _POSIX_TIMERS enabled in sys/features.h |
| // So we have to use clock() for now. |
| return clock(); |
| #elif defined(OS_POSIX) |
| struct timespec ts; |
| clock_gettime(CLOCK_MONOTONIC, &ts); |
| |
| uint64_t absolute_micro = static_cast<int64_t>(ts.tv_sec) * 1000000 + |
| static_cast<int64_t>(ts.tv_nsec) / 1000; |
| |
| return absolute_micro; |
| #endif |
| #endif |
| } |
| |
| void DeleteFilePath(const PathString& log_name) { |
| #if defined(STARBOARD) |
| SbFileDelete(log_name.c_str()); |
| #else |
| #if defined(OS_WIN) |
| DeleteFile(log_name.c_str()); |
| #elif defined(OS_NACL) |
| // Do nothing; unlink() isn't supported on NaCl. |
| #elif defined(OS_POSIX) || defined(OS_FUCHSIA) |
| unlink(log_name.c_str()); |
| #else |
| #error Unsupported platform |
| #endif |
| #endif |
| } |
| |
| PathString GetDefaultLogFile() { |
| #if defined(STARBOARD) |
| // On Starboard, we politely ask for the log directory, like a civilized |
| // platform. |
| std::vector<char> path(kSbFileMaxPath + 1); |
| SbSystemGetPath(kSbSystemPathDebugOutputDirectory, path.data(), path.size()); |
| PathString log_file = path.data(); |
| log_file += std::string(kSbFileSepString) + "debug.log"; |
| return log_file; |
| #else |
| #if defined(OS_WIN) |
| // On Windows we use the same path as the exe. |
| wchar_t module_name[MAX_PATH]; |
| GetModuleFileName(nullptr, module_name, MAX_PATH); |
| |
| PathString log_name = module_name; |
| PathString::size_type last_backslash = log_name.rfind('\\', log_name.size()); |
| if (last_backslash != PathString::npos) |
| log_name.erase(last_backslash + 1); |
| log_name += L"debug.log"; |
| return log_name; |
| #elif defined(OS_POSIX) || defined(OS_FUCHSIA) |
| // On other platforms we just use the current directory. |
| return PathString("debug.log"); |
| #endif |
| #endif |
| } |
| |
| // We don't need locks on Windows for atomically appending to files. The OS |
| // provides this functionality. |
| #if defined(OS_POSIX) || defined(OS_FUCHSIA) || defined(STARBOARD) |
| // This class acts as a wrapper for locking the logging files. |
| // LoggingLock::Init() should be called from the main thread before any logging |
| // is done. Then whenever logging, be sure to have a local LoggingLock |
| // instance on the stack. This will ensure that the lock is unlocked upon |
| // exiting the frame. |
| // LoggingLocks can not be nested. |
| class LoggingLock { |
| public: |
| LoggingLock() { |
| LockLogging(); |
| } |
| |
| ~LoggingLock() { |
| UnlockLogging(); |
| } |
| |
| static void Init(LogLockingState lock_log, const PathChar* new_log_file) { |
| if (initialized) |
| return; |
| lock_log_file = lock_log; |
| |
| if (lock_log_file != LOCK_LOG_FILE) |
| log_lock = new base::internal::LockImpl(); |
| |
| initialized = true; |
| } |
| |
| private: |
| static void LockLogging() { |
| if (lock_log_file == LOCK_LOG_FILE) { |
| #if defined(STARBOARD) |
| SbMutexAcquire(&log_mutex); |
| #else |
| pthread_mutex_lock(&log_mutex); |
| #endif |
| } else { |
| // use the lock |
| log_lock->Lock(); |
| } |
| } |
| |
| static void UnlockLogging() { |
| if (lock_log_file == LOCK_LOG_FILE) { |
| #if defined(STARBOARD) |
| SbMutexRelease(&log_mutex); |
| #else |
| pthread_mutex_unlock(&log_mutex); |
| #endif |
| } else { |
| log_lock->Unlock(); |
| } |
| } |
| |
| // The lock is used if log file locking is false. It helps us avoid problems |
| // with multiple threads writing to the log file at the same time. Use |
| // LockImpl directly instead of using Lock, because Lock makes logging calls. |
| static base::internal::LockImpl* log_lock; |
| |
| // When we don't use a lock, we are using a global mutex. We need to do this |
| // because LockFileEx is not thread safe. |
| #if defined(STARBOARD) |
| static SbMutex log_mutex; |
| #else |
| static pthread_mutex_t log_mutex; |
| #endif |
| |
| static bool initialized; |
| static LogLockingState lock_log_file; |
| }; |
| |
| // static |
| bool LoggingLock::initialized = false; |
| // static |
| base::internal::LockImpl* LoggingLock::log_lock = nullptr; |
| // static |
| LogLockingState LoggingLock::lock_log_file = LOCK_LOG_FILE; |
| |
| #if defined(STARBOARD) |
| SbMutex LoggingLock::log_mutex = SB_MUTEX_INITIALIZER; |
| #else |
| pthread_mutex_t LoggingLock::log_mutex = PTHREAD_MUTEX_INITIALIZER; |
| #endif |
| |
| #endif // OS_POSIX || OS_FUCHSIA |
| |
| // Called by logging functions to ensure that |g_log_file| is initialized |
| // and can be used for writing. Returns false if the file could not be |
| // initialized. |g_log_file| will be nullptr in this case. |
| bool InitializeLogFileHandle() { |
| if (g_log_file) |
| return true; |
| |
| if (!g_log_file_name) { |
| // Nobody has called InitLogging to specify a debug log file, so here we |
| // initialize the log file name to a default. |
| g_log_file_name = new PathString(GetDefaultLogFile()); |
| } |
| |
| #if defined(STARBOARD) |
| // This seems to get called a lot with an empty filename, at least in |
| // base_unittests. |
| if (g_log_file_name->empty()) { |
| return false; |
| } |
| #endif |
| |
| if ((g_logging_destination & LOG_TO_FILE) != 0) { |
| #if defined(STARBOARD) |
| g_log_file = SbFileOpen(g_log_file_name->c_str(), |
| kSbFileOpenAlways | kSbFileWrite, NULL, NULL); |
| if (!SbFileIsValid(g_log_file)) |
| return false; |
| |
| SbFileSeek(g_log_file, kSbFileFromEnd, 0); |
| #else |
| #if defined(OS_WIN) |
| // The FILE_APPEND_DATA access mask ensures that the file is atomically |
| // appended to across accesses from multiple threads. |
| // https://msdn.microsoft.com/en-us/library/windows/desktop/aa364399(v=vs.85).aspx |
| // https://msdn.microsoft.com/en-us/library/windows/desktop/aa363858(v=vs.85).aspx |
| g_log_file = CreateFile(g_log_file_name->c_str(), FILE_APPEND_DATA, |
| FILE_SHARE_READ | FILE_SHARE_WRITE, nullptr, |
| OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, nullptr); |
| if (g_log_file == INVALID_HANDLE_VALUE || g_log_file == nullptr) { |
| // We are intentionally not using FilePath or FileUtil here to reduce the |
| // dependencies of the logging implementation. For e.g. FilePath and |
| // FileUtil depend on shell32 and user32.dll. This is not acceptable for |
| // some consumers of base logging like chrome_elf, etc. |
| // Please don't change the code below to use FilePath. |
| // try the current directory |
| wchar_t system_buffer[MAX_PATH]; |
| system_buffer[0] = 0; |
| DWORD len = ::GetCurrentDirectory(arraysize(system_buffer), |
| system_buffer); |
| if (len == 0 || len > arraysize(system_buffer)) |
| return false; |
| |
| *g_log_file_name = system_buffer; |
| // Append a trailing backslash if needed. |
| if (g_log_file_name->back() != L'\\') |
| *g_log_file_name += L"\\"; |
| *g_log_file_name += L"debug.log"; |
| |
| g_log_file = CreateFile(g_log_file_name->c_str(), FILE_APPEND_DATA, |
| FILE_SHARE_READ | FILE_SHARE_WRITE, nullptr, |
| OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, nullptr); |
| if (g_log_file == INVALID_HANDLE_VALUE || g_log_file == nullptr) { |
| g_log_file = nullptr; |
| return false; |
| } |
| } |
| #elif defined(OS_POSIX) || defined(OS_FUCHSIA) |
| g_log_file = fopen(g_log_file_name->c_str(), "a"); |
| if (g_log_file == nullptr) |
| return false; |
| #else |
| #error Unsupported platform |
| #endif |
| #endif |
| } |
| |
| return true; |
| } |
| |
| void CloseFile(FileHandle log) { |
| #if defined(STARBOARD) |
| SbFileClose(log); |
| #else |
| #if defined(OS_WIN) |
| CloseHandle(log); |
| #elif defined(OS_POSIX) || defined(OS_FUCHSIA) |
| fclose(log); |
| #else |
| #error Unsupported platform |
| #endif |
| #endif |
| } |
| |
| void CloseLogFileUnlocked() { |
| if (!g_log_file) |
| return; |
| |
| CloseFile(g_log_file); |
| g_log_file = nullptr; |
| } |
| |
| #if defined(STARBOARD) |
| SbLogPriority LogLevelToStarboardLogPriority(int level) { |
| switch (level) { |
| case LOG_INFO: |
| return kSbLogPriorityInfo; |
| case LOG_WARNING: |
| return kSbLogPriorityWarning; |
| case LOG_ERROR: |
| return kSbLogPriorityError; |
| case LOG_FATAL: |
| case LOG_VERBOSE: |
| return kSbLogPriorityFatal; |
| default: |
| NOTREACHED() << "Unrecognized log level."; |
| return kSbLogPriorityInfo; |
| } |
| } |
| #endif // defined(STARBOARD) |
| |
| } // namespace |
| |
| #if DCHECK_IS_CONFIGURABLE |
| // In DCHECK-enabled Chrome builds, allow the meaning of LOG_DCHECK to be |
| // determined at run-time. We default it to INFO, to avoid it triggering |
| // crashes before the run-time has explicitly chosen the behaviour. |
| BASE_EXPORT logging::LogSeverity LOG_DCHECK = LOG_INFO; |
| #endif // DCHECK_IS_CONFIGURABLE |
| |
| // This is never instantiated, it's just used for EAT_STREAM_PARAMETERS to have |
| // an object of the correct type on the LHS of the unused part of the ternary |
| // operator. |
| std::ostream* g_swallow_stream; |
| |
| LoggingSettings::LoggingSettings() |
| : logging_dest(LOG_DEFAULT), |
| log_file(nullptr), |
| lock_log(LOCK_LOG_FILE), |
| delete_old(APPEND_TO_OLD_LOG_FILE) {} |
| |
| bool BaseInitLoggingImpl(const LoggingSettings& settings) { |
| #if defined(OS_NACL) |
| // Can log only to the system debug log. |
| CHECK_EQ(settings.logging_dest & ~LOG_TO_SYSTEM_DEBUG_LOG, 0); |
| #endif |
| base::CommandLine* command_line = base::CommandLine::ForCurrentProcess(); |
| // Don't bother initializing |g_vlog_info| unless we use one of the |
| // vlog switches. |
| if (command_line->HasSwitch(switches::kV) || |
| command_line->HasSwitch(switches::kVModule)) { |
| // NOTE: If |g_vlog_info| has already been initialized, it might be in use |
| // by another thread. Don't delete the old VLogInfo, just create a second |
| // one. We keep track of both to avoid memory leak warnings. |
| CHECK(!g_vlog_info_prev); |
| g_vlog_info_prev = g_vlog_info; |
| |
| g_vlog_info = |
| new VlogInfo(command_line->GetSwitchValueASCII(switches::kV), |
| command_line->GetSwitchValueASCII(switches::kVModule), |
| &g_min_log_level); |
| } |
| |
| g_logging_destination = settings.logging_dest; |
| |
| // ignore file options unless logging to file is set. |
| if ((g_logging_destination & LOG_TO_FILE) == 0) |
| return true; |
| |
| #if defined(OS_POSIX) || defined(OS_FUCHSIA) |
| LoggingLock::Init(settings.lock_log, settings.log_file); |
| LoggingLock logging_lock; |
| #endif |
| |
| // Calling InitLogging twice or after some log call has already opened the |
| // default log file will re-initialize to the new options. |
| CloseLogFileUnlocked(); |
| |
| if (!g_log_file_name) |
| g_log_file_name = new PathString(); |
| *g_log_file_name = settings.log_file; |
| if (settings.delete_old == DELETE_OLD_LOG_FILE) |
| DeleteFilePath(*g_log_file_name); |
| |
| return InitializeLogFileHandle(); |
| } |
| |
| void SetMinLogLevel(int level) { |
| g_min_log_level = std::min(LOG_FATAL, level); |
| } |
| |
| #if defined(OFFICIAL_BUILD) && !SB_IS(MODULAR) |
| int GetMinLogLevel() { |
| return LOG_NUM_SEVERITIES; |
| } |
| |
| bool ShouldCreateLogMessage(int severity) { |
| return false; |
| } |
| |
| int GetVlogVerbosity() { |
| return LOG_INFO - GetMinLogLevel(); |
| } |
| |
| int GetVlogLevelHelper(const char* file, size_t N) { |
| return GetVlogVerbosity(); |
| } |
| |
| void SetLogItems(bool enable_process_id, |
| bool enable_thread_id, |
| bool enable_timestamp, |
| bool enable_tickcount) {} |
| |
| void SetLogPrefix(const char* prefix) {} |
| |
| #else // defined(OFFICIAL_BUILD) && !SB_IS(MODULAR) |
| |
| int GetMinLogLevel() { |
| return g_min_log_level; |
| } |
| |
| bool ShouldCreateLogMessage(int severity) { |
| if (severity < g_min_log_level) |
| return false; |
| |
| // Return true here unless we know ~LogMessage won't do anything. Note that |
| // ~LogMessage writes to stderr if severity_ >= kAlwaysPrintErrorLevel, even |
| // when g_logging_destination is LOG_NONE. |
| return g_logging_destination != LOG_NONE || log_message_handler || |
| severity >= kAlwaysPrintErrorLevel; |
| } |
| |
| int GetVlogVerbosity() { |
| return std::max(-1, LOG_INFO - GetMinLogLevel()); |
| } |
| |
| int GetVlogLevelHelper(const char* file, size_t N) { |
| DCHECK_GT(N, 0U); |
| // Note: |g_vlog_info| may change on a different thread during startup |
| // (but will always be valid or nullptr). |
| VlogInfo* vlog_info = g_vlog_info; |
| return vlog_info ? |
| vlog_info->GetVlogLevel(base::StringPiece(file, N - 1)) : |
| GetVlogVerbosity(); |
| } |
| |
| void SetLogItems(bool enable_process_id, bool enable_thread_id, |
| bool enable_timestamp, bool enable_tickcount) { |
| g_log_process_id = enable_process_id; |
| g_log_thread_id = enable_thread_id; |
| g_log_timestamp = enable_timestamp; |
| g_log_tickcount = enable_tickcount; |
| } |
| |
| void SetLogPrefix(const char* prefix) { |
| DCHECK(!prefix || |
| base::ContainsOnlyChars(prefix, "abcdefghijklmnopqrstuvwxyz")); |
| g_log_prefix = prefix; |
| } |
| #endif // defined(OFFICIAL_BUILD) && !SB_IS(MODULAR) |
| |
| void SetShowErrorDialogs(bool enable_dialogs) { |
| show_error_dialogs = enable_dialogs; |
| } |
| |
| ScopedLogAssertHandler::ScopedLogAssertHandler( |
| LogAssertHandlerFunction handler) { |
| log_assert_handler_stack.Get().push(std::move(handler)); |
| } |
| |
| ScopedLogAssertHandler::~ScopedLogAssertHandler() { |
| log_assert_handler_stack.Get().pop(); |
| } |
| |
| void SetLogMessageHandler(LogMessageHandlerFunction handler) { |
| log_message_handler = handler; |
| } |
| |
| LogMessageHandlerFunction GetLogMessageHandler() { |
| return log_message_handler; |
| } |
| |
| // Explicit instantiations for commonly used comparisons. |
| template std::string* MakeCheckOpString<int, int>( |
| const int&, const int&, const char* names); |
| template std::string* MakeCheckOpString<unsigned long, unsigned long>( |
| const unsigned long&, const unsigned long&, const char* names); |
| template std::string* MakeCheckOpString<unsigned long, unsigned int>( |
| const unsigned long&, const unsigned int&, const char* names); |
| template std::string* MakeCheckOpString<unsigned int, unsigned long>( |
| const unsigned int&, const unsigned long&, const char* names); |
| template std::string* MakeCheckOpString<std::string, std::string>( |
| const std::string&, const std::string&, const char* name); |
| |
| void MakeCheckOpValueString(std::ostream* os, std::nullptr_t p) { |
| (*os) << "nullptr"; |
| } |
| |
| #if !defined(NDEBUG) |
| // Displays a message box to the user with the error message in it. |
| // Used for fatal messages, where we close the app simultaneously. |
| // This is for developers only; we don't use this in circumstances |
| // (like release builds) where users could see it, since users don't |
| // understand these messages anyway. |
| void DisplayDebugMessageInDialog(const std::string& str) { |
| if (str.empty()) |
| return; |
| |
| if (!show_error_dialogs) |
| return; |
| |
| #if defined(OS_WIN) |
| // We intentionally don't implement a dialog on other platforms. |
| // You can just look at stderr. |
| MessageBoxW(nullptr, base::UTF8ToUTF16(str).c_str(), L"Fatal error", |
| MB_OK | MB_ICONHAND | MB_TOPMOST); |
| #endif // defined(OS_WIN) |
| } |
| #endif // !defined(NDEBUG) |
| |
| LogMessage::LogMessage(const char* file, int line, LogSeverity severity) |
| : severity_(severity), file_(file), line_(line) { |
| Init(file, line); |
| } |
| |
| LogMessage::LogMessage(const char* file, int line, const char* condition) |
| : severity_(LOG_FATAL), file_(file), line_(line) { |
| Init(file, line); |
| stream_ << "Check failed: " << condition << ". "; |
| } |
| |
| LogMessage::LogMessage(const char* file, int line, std::string* result) |
| : severity_(LOG_FATAL), file_(file), line_(line) { |
| Init(file, line); |
| stream_ << "Check failed: " << *result; |
| delete result; |
| } |
| |
| LogMessage::LogMessage(const char* file, int line, LogSeverity severity, |
| std::string* result) |
| : severity_(severity), file_(file), line_(line) { |
| Init(file, line); |
| stream_ << "Check failed: " << *result; |
| delete result; |
| } |
| |
| LogMessage::~LogMessage() { |
| size_t stack_start = stream_.tellp(); |
| #if !defined(OFFICIAL_BUILD) && !defined(OS_NACL) && !defined(__UCLIBC__) && \ |
| !defined(OS_AIX) |
| if (severity_ == LOG_FATAL && !base::debug::BeingDebugged()) { |
| // Include a stack trace on a fatal, unless a debugger is attached. |
| base::debug::StackTrace trace; |
| stream_ << std::endl; // Newline to separate from log message. |
| trace.OutputToStream(&stream_); |
| } |
| #endif |
| stream_ << std::endl; |
| std::string str_newline(stream_.str()); |
| TRACE_EVENT_INSTANT1("log", "LogMessage", TRACE_EVENT_SCOPE_THREAD, "message", |
| str_newline); |
| |
| // Give any log message handler first dibs on the message. |
| if (log_message_handler && |
| log_message_handler(severity_, file_, line_, |
| message_start_, str_newline)) { |
| // The handler took care of it, no further processing. |
| return; |
| } |
| |
| if ((g_logging_destination & LOG_TO_SYSTEM_DEBUG_LOG) != 0) { |
| #if defined(STARBOARD) |
| SbLog(LogLevelToStarboardLogPriority(severity_), str_newline.c_str()); |
| #else |
| #if defined(OS_WIN) |
| OutputDebugStringA(str_newline.c_str()); |
| #elif defined(OS_MACOSX) |
| // In LOG_TO_SYSTEM_DEBUG_LOG mode, log messages are always written to |
| // stderr. If stderr is /dev/null, also log via ASL (Apple System Log) or |
| // its successor OS_LOG. If there's something weird about stderr, assume |
| // that log messages are going nowhere and log via ASL/OS_LOG too. |
| // Messages logged via ASL/OS_LOG show up in Console.app. |
| // |
| // Programs started by launchd, as UI applications normally are, have had |
| // stderr connected to /dev/null since OS X 10.8. Prior to that, stderr was |
| // a pipe to launchd, which logged what it received (see log_redirect_fd in |
| // 10.7.5 launchd-392.39/launchd/src/launchd_core_logic.c). |
| // |
| // Another alternative would be to determine whether stderr is a pipe to |
| // launchd and avoid logging via ASL only in that case. See 10.7.5 |
| // CF-635.21/CFUtilities.c also_do_stderr(). This would result in logging to |
| // both stderr and ASL/OS_LOG even in tests, where it's undesirable to log |
| // to the system log at all. |
| // |
| // Note that the ASL client by default discards messages whose levels are |
| // below ASL_LEVEL_NOTICE. It's possible to change that with |
| // asl_set_filter(), but this is pointless because syslogd normally applies |
| // the same filter. |
| const bool log_to_system = []() { |
| struct stat stderr_stat; |
| if (fstat(fileno(stderr), &stderr_stat) == -1) { |
| return true; |
| } |
| if (!S_ISCHR(stderr_stat.st_mode)) { |
| return false; |
| } |
| |
| struct stat dev_null_stat; |
| if (stat(_PATH_DEVNULL, &dev_null_stat) == -1) { |
| return true; |
| } |
| |
| return !S_ISCHR(dev_null_stat.st_mode) || |
| stderr_stat.st_rdev == dev_null_stat.st_rdev; |
| }(); |
| |
| if (log_to_system) { |
| // Log roughly the same way that CFLog() and NSLog() would. See 10.10.5 |
| // CF-1153.18/CFUtilities.c __CFLogCString(). |
| CFBundleRef main_bundle = CFBundleGetMainBundle(); |
| CFStringRef main_bundle_id_cf = |
| main_bundle ? CFBundleGetIdentifier(main_bundle) : nullptr; |
| std::string main_bundle_id = |
| main_bundle_id_cf ? base::SysCFStringRefToUTF8(main_bundle_id_cf) |
| : std::string(""); |
| #if defined(USE_ASL) |
| // The facility is set to the main bundle ID if available. Otherwise, |
| // "com.apple.console" is used. |
| const class ASLClient { |
| public: |
| explicit ASLClient(const std::string& facility) |
| : client_(asl_open(nullptr, facility.c_str(), ASL_OPT_NO_DELAY)) {} |
| ~ASLClient() { asl_close(client_); } |
| |
| aslclient get() const { return client_; } |
| |
| private: |
| aslclient client_; |
| DISALLOW_COPY_AND_ASSIGN(ASLClient); |
| } asl_client(main_bundle_id.empty() ? main_bundle_id |
| : "com.apple.console"); |
| |
| const class ASLMessage { |
| public: |
| ASLMessage() : message_(asl_new(ASL_TYPE_MSG)) {} |
| ~ASLMessage() { asl_free(message_); } |
| |
| aslmsg get() const { return message_; } |
| |
| private: |
| aslmsg message_; |
| DISALLOW_COPY_AND_ASSIGN(ASLMessage); |
| } asl_message; |
| |
| // By default, messages are only readable by the admin group. Explicitly |
| // make them readable by the user generating the messages. |
| char euid_string[12]; |
| snprintf(euid_string, arraysize(euid_string), "%d", geteuid()); |
| asl_set(asl_message.get(), ASL_KEY_READ_UID, euid_string); |
| |
| // Map Chrome log severities to ASL log levels. |
| const char* const asl_level_string = [](LogSeverity severity) { |
| // ASL_LEVEL_* are ints, but ASL needs equivalent strings. This |
| // non-obvious two-step macro trick achieves what's needed. |
| // https://gcc.gnu.org/onlinedocs/cpp/Stringification.html |
| #define ASL_LEVEL_STR(level) ASL_LEVEL_STR_X(level) |
| #define ASL_LEVEL_STR_X(level) #level |
| switch (severity) { |
| case LOG_INFO: |
| return ASL_LEVEL_STR(ASL_LEVEL_INFO); |
| case LOG_WARNING: |
| return ASL_LEVEL_STR(ASL_LEVEL_WARNING); |
| case LOG_ERROR: |
| return ASL_LEVEL_STR(ASL_LEVEL_ERR); |
| case LOG_FATAL: |
| return ASL_LEVEL_STR(ASL_LEVEL_CRIT); |
| default: |
| return severity < 0 ? ASL_LEVEL_STR(ASL_LEVEL_DEBUG) |
| : ASL_LEVEL_STR(ASL_LEVEL_NOTICE); |
| } |
| #undef ASL_LEVEL_STR |
| #undef ASL_LEVEL_STR_X |
| }(severity_); |
| asl_set(asl_message.get(), ASL_KEY_LEVEL, asl_level_string); |
| |
| asl_set(asl_message.get(), ASL_KEY_MSG, str_newline.c_str()); |
| |
| asl_send(asl_client.get(), asl_message.get()); |
| #else // !defined(USE_ASL) |
| const class OSLog { |
| public: |
| explicit OSLog(const char* subsystem) |
| : os_log_(subsystem ? os_log_create(subsystem, "chromium_logging") |
| : OS_LOG_DEFAULT) {} |
| ~OSLog() { |
| if (os_log_ != OS_LOG_DEFAULT) { |
| os_release(os_log_); |
| } |
| } |
| os_log_t get() const { return os_log_; } |
| |
| private: |
| os_log_t os_log_; |
| DISALLOW_COPY_AND_ASSIGN(OSLog); |
| } log(main_bundle_id.empty() ? nullptr : main_bundle_id.c_str()); |
| const os_log_type_t os_log_type = [](LogSeverity severity) { |
| switch (severity) { |
| case LOG_INFO: |
| return OS_LOG_TYPE_INFO; |
| case LOG_WARNING: |
| return OS_LOG_TYPE_DEFAULT; |
| case LOG_ERROR: |
| return OS_LOG_TYPE_ERROR; |
| case LOG_FATAL: |
| return OS_LOG_TYPE_FAULT; |
| default: |
| return severity < 0 ? OS_LOG_TYPE_DEBUG : OS_LOG_TYPE_DEFAULT; |
| } |
| }(severity_); |
| os_log_with_type(log.get(), os_log_type, "%{public}s", |
| str_newline.c_str()); |
| #endif // defined(USE_ASL) |
| } |
| #elif defined(OS_ANDROID) |
| android_LogPriority priority = |
| (severity_ < 0) ? ANDROID_LOG_VERBOSE : ANDROID_LOG_UNKNOWN; |
| switch (severity_) { |
| case LOG_INFO: |
| priority = ANDROID_LOG_INFO; |
| break; |
| case LOG_WARNING: |
| priority = ANDROID_LOG_WARN; |
| break; |
| case LOG_ERROR: |
| priority = ANDROID_LOG_ERROR; |
| break; |
| case LOG_FATAL: |
| priority = ANDROID_LOG_FATAL; |
| break; |
| } |
| __android_log_write(priority, "chromium", str_newline.c_str()); |
| #endif |
| ignore_result(fwrite(str_newline.data(), str_newline.size(), 1, stderr)); |
| fflush(stderr); |
| #endif |
| } else if (severity_ >= kAlwaysPrintErrorLevel) { |
| #if defined(STARBOARD) |
| SbLog(LogLevelToStarboardLogPriority(severity_), str_newline.c_str()); |
| #else |
| // When we're only outputting to a log file, above a certain log level, we |
| // should still output to stderr so that we can better detect and diagnose |
| // problems with unit tests, especially on the buildbots. |
| ignore_result(fwrite(str_newline.data(), str_newline.size(), 1, stderr)); |
| fflush(stderr); |
| #endif |
| } |
| |
| // write to log file |
| if ((g_logging_destination & LOG_TO_FILE) != 0) { |
| // We can have multiple threads and/or processes, so try to prevent them |
| // from clobbering each other's writes. |
| // If the client app did not call InitLogging, and the lock has not |
| // been created do it now. We do this on demand, but if two threads try |
| // to do this at the same time, there will be a race condition to create |
| // the lock. This is why InitLogging should be called from the main |
| // thread at the beginning of execution. |
| #if defined(OS_POSIX) || defined(OS_FUCHSIA) |
| LoggingLock::Init(LOCK_LOG_FILE, nullptr); |
| LoggingLock logging_lock; |
| #endif |
| if (InitializeLogFileHandle()) { |
| #if defined(STARBOARD) |
| SbFileSeek(g_log_file, kSbFileFromEnd, 0); |
| int written = 0; |
| while (written < str_newline.length()) { |
| int result = SbFileWrite(g_log_file, &(str_newline.c_str()[written]), |
| str_newline.length() - written); |
| base::RecordFileWriteStat(result); |
| if (result < 0) { |
| break; |
| } |
| written += result; |
| } |
| #else |
| #if defined(OS_WIN) |
| DWORD num_written; |
| WriteFile(g_log_file, |
| static_cast<const void*>(str_newline.c_str()), |
| static_cast<DWORD>(str_newline.length()), |
| &num_written, |
| nullptr); |
| #elif defined(OS_POSIX) || defined(OS_FUCHSIA) |
| ignore_result(fwrite( |
| str_newline.data(), str_newline.size(), 1, g_log_file)); |
| fflush(g_log_file); |
| #else |
| #error Unsupported platform |
| #endif |
| #endif |
| } |
| } |
| |
| if (severity_ == LOG_FATAL) { |
| #if !defined(STARBOARD) |
| // Write the log message to the global activity tracker, if running. |
| base::debug::GlobalActivityTracker* tracker = |
| base::debug::GlobalActivityTracker::Get(); |
| if (tracker) |
| tracker->RecordLogMessage(str_newline); |
| #endif // !defined(STARBOARD) |
| |
| // Ensure the first characters of the string are on the stack so they |
| // are contained in minidumps for diagnostic purposes. |
| DEBUG_ALIAS_FOR_CSTR(str_stack, str_newline.c_str(), 1024); |
| |
| if (log_assert_handler_stack.IsCreated() && |
| !log_assert_handler_stack.Get().empty()) { |
| LogAssertHandlerFunction log_assert_handler = |
| log_assert_handler_stack.Get().top(); |
| |
| if (log_assert_handler) { |
| log_assert_handler.Run( |
| file_, line_, |
| base::StringPiece(str_newline.c_str() + message_start_, |
| stack_start - message_start_), |
| base::StringPiece(str_newline.c_str() + stack_start)); |
| } |
| } else { |
| // Don't use the string with the newline, get a fresh version to send to |
| // the debug message process. We also don't display assertions to the |
| // user in release mode. The enduser can't do anything with this |
| // information, and displaying message boxes when the application is |
| // hosed can cause additional problems. |
| #ifndef NDEBUG |
| if (!base::debug::BeingDebugged()) { |
| // Displaying a dialog is unnecessary when debugging and can complicate |
| // debugging. |
| DisplayDebugMessageInDialog(stream_.str()); |
| } |
| #endif |
| // Crash the process to generate a dump. |
| #if defined(OFFICIAL_BUILD) && defined(NDEBUG) |
| IMMEDIATE_CRASH(); |
| #else |
| base::debug::BreakDebugger(); |
| #endif |
| } |
| } |
| } |
| |
| // writes the common header info to the stream |
| void LogMessage::Init(const char* file, int line) { |
| base::StringPiece filename(file); |
| size_t last_slash_pos = filename.find_last_of("\\/"); |
| if (last_slash_pos != base::StringPiece::npos) |
| filename.remove_prefix(last_slash_pos + 1); |
| |
| // TODO(darin): It might be nice if the columns were fixed width. |
| |
| stream_ << '['; |
| if (g_log_prefix) |
| stream_ << g_log_prefix << ':'; |
| #ifndef STARBOARD |
| // Cobalt and cobalt unittests are both single thread applciation. |
| if (g_log_process_id) |
| stream_ << CurrentProcessId() << ':'; |
| #endif |
| if (g_log_thread_id) |
| stream_ << base::PlatformThread::GetName() << '/' << base::PlatformThread::CurrentId() << ":"; |
| if (g_log_timestamp) { |
| #if defined(STARBOARD) |
| EzTimeValue time_value; |
| EzTimeValueGetNow(&time_value, NULL); |
| struct EzTimeExploded local_time = {0}; |
| EzTimeTExplodeLocal(&(time_value.tv_sec), &local_time); |
| struct EzTimeExploded* tm_time = &local_time; |
| stream_ << std::setfill('0') |
| << std::setw(2) << 1 + tm_time->tm_mon |
| << std::setw(2) << tm_time->tm_mday |
| << '/' |
| << std::setw(2) << tm_time->tm_hour |
| << std::setw(2) << tm_time->tm_min |
| << std::setw(2) << tm_time->tm_sec |
| << '.' << std::setw(6) << time_value.tv_usec |
| << ':'; |
| #else |
| #if defined(OS_WIN) |
| SYSTEMTIME local_time; |
| GetLocalTime(&local_time); |
| stream_ << std::setfill('0') << std::setw(2) << local_time.wMonth |
| << std::setw(2) << local_time.wDay << '/' << std::setw(2) |
| << local_time.wHour << std::setw(2) << local_time.wMinute |
| << std::setw(2) << local_time.wSecond << '.' << std::setw(3) |
| << local_time.wMilliseconds << ':'; |
| #elif defined(OS_POSIX) || defined(OS_FUCHSIA) |
| timeval tv; |
| gettimeofday(&tv, nullptr); |
| time_t t = tv.tv_sec; |
| struct tm local_time; |
| localtime_r(&t, &local_time); |
| struct tm* tm_time = &local_time; |
| stream_ << std::setfill('0') << std::setw(2) << 1 + tm_time->tm_mon |
| << std::setw(2) << tm_time->tm_mday << '/' << std::setw(2) |
| << tm_time->tm_hour << std::setw(2) << tm_time->tm_min |
| << std::setw(2) << tm_time->tm_sec << '.' << std::setw(6) |
| << tv.tv_usec << ':'; |
| #else |
| #error Unsupported platform |
| #endif |
| #endif |
| } |
| #ifndef STARBOARD |
| // Cobalt does not want tickcounts. |
| if (g_log_tickcount) |
| stream_ << TickCount() << ':'; |
| #endif |
| if (severity_ >= 0) |
| stream_ << log_severity_name(severity_); |
| else |
| stream_ << "VERBOSE" << -severity_; |
| |
| stream_ << ":" << filename << "(" << line << ")] "; |
| |
| message_start_ = stream_.str().length(); |
| } |
| |
| #if defined(OS_WIN) |
| // This has already been defined in the header, but defining it again as DWORD |
| // ensures that the type used in the header is equivalent to DWORD. If not, |
| // the redefinition is a compile error. |
| typedef DWORD SystemErrorCode; |
| #endif |
| |
| SystemErrorCode GetLastSystemErrorCode() { |
| #if defined(STARBOARD) |
| return SbSystemGetLastError(); |
| #else |
| #if defined(OS_WIN) |
| return ::GetLastError(); |
| #elif defined(OS_POSIX) || defined(OS_FUCHSIA) |
| return errno; |
| #endif |
| #endif |
| } |
| |
| #if defined(STARBOARD) |
| BASE_EXPORT std::string SystemErrorCodeToString(SystemErrorCode error_code) { |
| const int kErrorMessageBufferSize = 256; |
| char msgbuf[kErrorMessageBufferSize]; |
| |
| if (SbSystemGetErrorString(error_code, msgbuf, kErrorMessageBufferSize) > 0) { |
| // Messages returned by system end with line breaks. |
| return base::CollapseWhitespaceASCII(msgbuf, true) + |
| base::StringPrintf(" (%d)", error_code); |
| } else { |
| return base::StringPrintf("Error (%d) while retrieving error. (%d)", |
| GetLastSystemErrorCode(), error_code); |
| } |
| } |
| #else |
| BASE_EXPORT std::string SystemErrorCodeToString(SystemErrorCode error_code) { |
| #if defined(OS_WIN) |
| const int kErrorMessageBufferSize = 256; |
| char msgbuf[kErrorMessageBufferSize]; |
| DWORD flags = FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS; |
| DWORD len = FormatMessageA(flags, nullptr, error_code, 0, msgbuf, |
| arraysize(msgbuf), nullptr); |
| if (len) { |
| // Messages returned by system end with line breaks. |
| return base::CollapseWhitespaceASCII(msgbuf, true) + |
| base::StringPrintf(" (0x%lX)", error_code); |
| } |
| return base::StringPrintf("Error (0x%lX) while retrieving error. (0x%lX)", |
| GetLastError(), error_code); |
| #elif defined(OS_POSIX) || defined(OS_FUCHSIA) |
| return base::safe_strerror(error_code) + |
| base::StringPrintf(" (%d)", error_code); |
| #endif // defined(OS_WIN) |
| } |
| #endif // defined(STARBOARD) |
| |
| #if defined(STARBOARD) |
| StarboardErrorLogMessage::StarboardErrorLogMessage(const char* file, |
| int line, |
| LogSeverity severity, |
| SystemErrorCode err) |
| : err_(err), log_message_(file, line, severity) {} |
| |
| StarboardErrorLogMessage::~StarboardErrorLogMessage() { |
| stream() << ": " << SystemErrorCodeToString(err_); |
| // We're about to crash (CHECK). Put |err_| on the stack (by placing it in a |
| // field) and use Alias in hopes that it makes it into crash dumps. |
| SystemErrorCode last_error = err_; |
| base::debug::Alias(&last_error); |
| } |
| #else |
| #if defined(OS_WIN) |
| Win32ErrorLogMessage::Win32ErrorLogMessage(const char* file, |
| int line, |
| LogSeverity severity, |
| SystemErrorCode err) |
| : err_(err), |
| log_message_(file, line, severity) { |
| } |
| |
| Win32ErrorLogMessage::~Win32ErrorLogMessage() { |
| stream() << ": " << SystemErrorCodeToString(err_); |
| // We're about to crash (CHECK). Put |err_| on the stack (by placing it in a |
| // field) and use Alias in hopes that it makes it into crash dumps. |
| DWORD last_error = err_; |
| base::debug::Alias(&last_error); |
| } |
| #elif defined(OS_POSIX) || defined(OS_FUCHSIA) |
| ErrnoLogMessage::ErrnoLogMessage(const char* file, |
| int line, |
| LogSeverity severity, |
| SystemErrorCode err) |
| : err_(err), |
| log_message_(file, line, severity) { |
| } |
| |
| ErrnoLogMessage::~ErrnoLogMessage() { |
| stream() << ": " << SystemErrorCodeToString(err_); |
| // We're about to crash (CHECK). Put |err_| on the stack (by placing it in a |
| // field) and use Alias in hopes that it makes it into crash dumps. |
| int last_error = err_; |
| base::debug::Alias(&last_error); |
| } |
| #endif // defined(OS_WIN) |
| #endif // defined(STARBOARD) |
| |
| void CloseLogFile() { |
| #if defined(OS_POSIX) || defined(OS_FUCHSIA) |
| LoggingLock logging_lock; |
| #endif |
| CloseLogFileUnlocked(); |
| } |
| |
| void RawLog(int level, const char* message) { |
| if (level >= g_min_log_level && message) { |
| #if defined(STARBOARD) |
| SbLogRaw(message); |
| const size_t message_len = strlen(message); |
| if (message_len > 0 && message[message_len - 1] != '\n') { |
| SbLogRaw("\n"); |
| } |
| #else |
| size_t bytes_written = 0; |
| const size_t message_len = strlen(message); |
| int rv; |
| while (bytes_written < message_len) { |
| rv = HANDLE_EINTR( |
| write(STDERR_FILENO, message + bytes_written, |
| message_len - bytes_written)); |
| if (rv < 0) { |
| // Give up, nothing we can do now. |
| break; |
| } |
| bytes_written += rv; |
| } |
| |
| if (message_len > 0 && message[message_len - 1] != '\n') { |
| do { |
| rv = HANDLE_EINTR(write(STDERR_FILENO, "\n", 1)); |
| if (rv < 0) { |
| // Give up, nothing we can do now. |
| break; |
| } |
| } while (rv != 1); |
| } |
| #endif // defined(STARBOARD) |
| } |
| |
| if (level == LOG_FATAL) |
| base::debug::BreakDebugger(); |
| } |
| |
| // This was defined at the beginning of this file. |
| #undef write |
| |
| #if defined(OS_WIN) |
| bool IsLoggingToFileEnabled() { |
| return g_logging_destination & LOG_TO_FILE; |
| } |
| |
| std::wstring GetLogFileFullPath() { |
| if (g_log_file_name) |
| return *g_log_file_name; |
| return std::wstring(); |
| } |
| #endif |
| |
| BASE_EXPORT void LogErrorNotReached(const char* file, int line) { |
| LogMessage(file, line, LOG_ERROR).stream() |
| << "NOTREACHED() hit."; |
| } |
| |
| } // namespace logging |
| |
| #if !defined(STARBOARD) // This is implemented already in Starboard. |
| std::ostream& std::operator<<(std::ostream& out, const wchar_t* wstr) { |
| return out << (wstr ? base::WideToUTF8(wstr) : std::string()); |
| } |
| #endif // !defined(STARBOARD) |