ext/gitdll/die.cpp

   1 // TortoiseGit - a Windows shell extension for easy version control
   2
   3 // Copyright (C) 2008-2011,2013 - TortoiseGit
   4
   5 // This program is free software; you can redistribute it and/or
   6 // modify it under the terms of the GNU General Public License
   7 // as published by the Free Software Foundation; either version 2
   8 // of the License, or (at your option) any later version.
   9
  10 // This program is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14
  15 // You should have received a copy of the GNU General Public License
  16 // along with this program; if not, write to the Free Software Foundation,
  17 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 //
  19 #include "stdafx.h"
  20 #include "gitdll.h"
  21 #include "stdio.h"
  22
  23 #define MAX_ERROR_STR_SIZE 512
  24 extern "C" char g_last_error[MAX_ERROR_STR_SIZE]={0};
  25 extern "C" int close_all();
  26 static int dyingRecCnt = 0;
  27
  28 extern "C" void die_dll(const char *err, va_list params)
  29 {
  30         memset(g_last_error,0,MAX_ERROR_STR_SIZE);
  31         vsnprintf(g_last_error, MAX_ERROR_STR_SIZE-1, err, params);
  32         close_all();
  33         dyingRecCnt = 0;
  34         throw g_last_error;
  35 }
  36
  37 void die(const char *err, ...)
  38 {
  39         va_list params;
  40
  41         va_start(params, err);
  42         die_dll(err, params);
  43         // va_end(params); // we never come here
  44 }
  45
  46 extern "C" void vc_exit(int code)
  47 {
  48         if (strlen(g_last_error))
  49         {
  50                 char old_err[MAX_ERROR_STR_SIZE];
  51                 memcpy(old_err, g_last_error, MAX_ERROR_STR_SIZE);
  52                 die("libgit called \"exit(%d)\". Last error was:\n%s", code, old_err);
  53         }
  54         else
  55                 die("libgit called \"exit(%d)\".", code);
  56 }
  57
  58 extern "C" int die_is_recursing_dll()
  59 {
  60         return dyingRecCnt++;
  61 }