base/mac/mach_logging.cc

   1 // Copyright 2014 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 #include "base/mac/mach_logging.h"
   6
   7 #include <iomanip>
   8 #include <string>
   9
  10 #include "base/strings/stringprintf.h"
  11
  12 #if !defined(OS_IOS)
  13 #include <servers/bootstrap.h>
  14 #endif  // !OS_IOS
  15
  16 namespace {
  17
  18 std::string FormatMachErrorNumber(mach_error_t mach_err) {
  19   // For the os/kern subsystem, give the error number in decimal as in
  20   // <mach/kern_return.h>. Otherwise, give it in hexadecimal to make it easier
  21   // to visualize the various bits. See <mach/error.h>.
  22   if (mach_err >= 0 && mach_err < KERN_RETURN_MAX) {
  23     return base::StringPrintf(" (%d)", mach_err);
  24   }
  25   return base::StringPrintf(" (0x%08x)", mach_err);
  26 }
  27
  28 }  // namespace
  29
  30 namespace logging {
  31
  32 MachLogMessage::MachLogMessage(const char* file_path,
  33                                int line,
  34                                LogSeverity severity,
  35                                mach_error_t mach_err)
  36     : LogMessage(file_path, line, severity),
  37       mach_err_(mach_err) {
  38 }
  39
  40 MachLogMessage::~MachLogMessage() {
  41   stream() << ": "
  42            << mach_error_string(mach_err_)
  43            << FormatMachErrorNumber(mach_err_);
  44 }
  45
  46 #if !defined(OS_IOS)
  47
  48 BootstrapLogMessage::BootstrapLogMessage(const char* file_path,
  49                                          int line,
  50                                          LogSeverity severity,
  51                                          kern_return_t bootstrap_err)
  52     : LogMessage(file_path, line, severity),
  53       bootstrap_err_(bootstrap_err) {
  54 }
  55
  56 BootstrapLogMessage::~BootstrapLogMessage() {
  57   stream() << ": "
  58            << bootstrap_strerror(bootstrap_err_);
  59
  60   switch (bootstrap_err_) {
  61     case BOOTSTRAP_SUCCESS:
  62     case BOOTSTRAP_NOT_PRIVILEGED:
  63     case BOOTSTRAP_NAME_IN_USE:
  64     case BOOTSTRAP_UNKNOWN_SERVICE:
  65     case BOOTSTRAP_SERVICE_ACTIVE:
  66     case BOOTSTRAP_BAD_COUNT:
  67     case BOOTSTRAP_NO_MEMORY:
  68     case BOOTSTRAP_NO_CHILDREN: {
  69       // Show known bootstrap errors in decimal because that's how they're
  70       // defined in <servers/bootstrap.h>.
  71       stream() << " (" << bootstrap_err_ << ")";
  72       break;
  73     }
  74
  75     default: {
  76       // bootstrap_strerror passes unknown errors to mach_error_string, so
  77       // format them as they would be if they were handled by
  78       // MachErrorMessage.
  79       stream() << FormatMachErrorNumber(bootstrap_err_);
  80       break;
  81     }
  82   }
  83 }
  84
  85 #endif  // !OS_IOS
  86
  87 }  // namespace logging