Home | History | Annotate | Download | only in mac 
      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
     88