lldb/tools/debugserver/source/DNBError.cpp

   1 //===-- DNBError.cpp --------------------------------------------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 //  Created by Greg Clayton on 6/26/07.
  10 //
  11 //===----------------------------------------------------------------------===//
  12
  13 #include "DNBError.h"
  14 #include "CFString.h"
  15 #include "DNBLog.h"
  16 #include "PThreadMutex.h"
  17
  18 #ifdef WITH_SPRINGBOARD
  19 #include <SpringBoardServices/SpringBoardServer.h>
  20 #endif
  21
  22 const char *DNBError::AsString() const {
  23   if (Success())
  24     return NULL;
  25
  26   if (m_str.empty()) {
  27     const char *s = NULL;
  28     switch (m_flavor) {
  29     case MachKernel:
  30       s = ::mach_error_string(m_err);
  31       break;
  32
  33     case POSIX:
  34       s = ::strerror(m_err);
  35       break;
  36
  37 #ifdef WITH_SPRINGBOARD
  38     case SpringBoard: {
  39       CFStringRef statusStr = SBSApplicationLaunchingErrorString(m_err);
  40       if (CFString::UTF8(statusStr, m_str) == NULL)
  41         m_str.clear();
  42     } break;
  43 #endif
  44 #ifdef WITH_BKS
  45     case BackBoard: {
  46       // You have to call ObjC routines to get the error string from
  47       // BackBoardServices.
  48       // Not sure I want to make DNBError.cpp an .mm file.  For now just make
  49       // sure you
  50       // pre-populate the error string when you make the DNBError of type
  51       // BackBoard.
  52       m_str.assign(
  53           "Should have set BackBoard error when making the error string.");
  54     } break;
  55 #endif
  56 #ifdef WITH_FBS
  57     case FrontBoard: {
  58       // You have to call ObjC routines to get the error string from
  59       // FrontBoardServices.
  60       // Not sure I want to make DNBError.cpp an .mm file.  For now just make
  61       // sure you
  62       // pre-populate the error string when you make the DNBError of type
  63       // FrontBoard.
  64       m_str.assign(
  65           "Should have set FrontBoard error when making the error string.");
  66     } break;
  67 #endif
  68     default:
  69       break;
  70     }
  71     if (s)
  72       m_str.assign(s);
  73   }
  74   if (m_str.empty())
  75     return NULL;
  76   return m_str.c_str();
  77 }
  78
  79 void DNBError::LogThreadedIfError(const char *format, ...) const {
  80   if (Fail()) {
  81     char *arg_msg = NULL;
  82     va_list args;
  83     va_start(args, format);
  84     ::vasprintf(&arg_msg, format, args);
  85     va_end(args);
  86
  87     if (arg_msg != NULL) {
  88       const char *err_str = AsString();
  89       if (err_str == NULL)
  90         err_str = "???";
  91       DNBLogThreaded("error: %s err = %s (0x%8.8x)", arg_msg, err_str, m_err);
  92       free(arg_msg);
  93     }
  94   }
  95 }
  96
  97 void DNBError::LogThreaded(const char *format, ...) const {
  98   char *arg_msg = NULL;
  99   va_list args;
 100   va_start(args, format);
 101   ::vasprintf(&arg_msg, format, args);
 102   va_end(args);
 103
 104   if (arg_msg != NULL) {
 105     if (Fail()) {
 106       const char *err_str = AsString();
 107       if (err_str == NULL)
 108         err_str = "???";
 109       DNBLogThreaded("error: %s err = %s (0x%8.8x)", arg_msg, err_str, m_err);
 110     } else {
 111       DNBLogThreaded("%s err = 0x%8.8x", arg_msg, m_err);
 112     }
 113     free(arg_msg);
 114   }
 115 }