CMakeLua/Source/cmProcessTools.cxx

   1 /*=========================================================================
   2
   3   Program:   CMake - Cross-Platform Makefile Generator
   4   Module:    $RCSfile: cmProcessTools.cxx,v $
   5   Language:  C++
   6   Date:      $Date: 2009-02-24 15:40:18 $
   7   Version:   $Revision: 1.1 $
   8
   9   Copyright (c) 2002 Kitware, Inc., Insight Consortium.  All rights reserved.
  10   See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
  11
  12      This software is distributed WITHOUT ANY WARRANTY; without even
  13      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  14      PURPOSE.  See the above copyright notices for more information.
  15
  16 =========================================================================*/
  17 #include "cmProcessTools.h"
  18
  19 #include <cmsys/Process.h>
  20
  21 //----------------------------------------------------------------------------
  22 void cmProcessTools::RunProcess(struct cmsysProcess_s* cp,
  23                                 OutputParser* out, OutputParser* err)
  24 {
  25   cmsysProcess_Execute(cp);
  26   char* data = 0;
  27   int length = 0;
  28   int p;
  29   while((out||err) && (p=cmsysProcess_WaitForData(cp, &data, &length, 0), p))
  30     {
  31     if(out && p == cmsysProcess_Pipe_STDOUT)
  32       {
  33       if(!out->Process(data, length))
  34         {
  35         out = 0;
  36         }
  37       }
  38     else if(err && p == cmsysProcess_Pipe_STDERR)
  39       {
  40       if(!err->Process(data, length))
  41         {
  42         err = 0;
  43         }
  44       }
  45     }
  46   cmsysProcess_WaitForExit(cp, 0);
  47 }
  48
  49
  50 //----------------------------------------------------------------------------
  51 cmProcessTools::LineParser::LineParser(char sep, bool ignoreCR):
  52   Separator(sep), IgnoreCR(ignoreCR), Log(0), Prefix(0)
  53 {
  54 }
  55
  56 //----------------------------------------------------------------------------
  57 void cmProcessTools::LineParser::SetLog(std::ostream* log, const char* prefix)
  58 {
  59   this->Log = log;
  60   this->Prefix = prefix? prefix : "";
  61 }
  62
  63 //----------------------------------------------------------------------------
  64 bool cmProcessTools::LineParser::ProcessChunk(const char* first, int length)
  65 {
  66   const char* last = first + length;
  67   for(const char* c = first; c != last; ++c)
  68     {
  69     if(*c == this->Separator)
  70       {
  71       // Log this line.
  72       if(this->Log && this->Prefix)
  73         {
  74         *this->Log << this->Prefix << this->Line << "\n";
  75         }
  76
  77       // Hand this line to the subclass implementation.
  78       if(!this->ProcessLine())
  79         {
  80         this->Line = "";
  81         return false;
  82         }
  83
  84       this->Line = "";
  85       }
  86     else if(*c != '\r' || !this->IgnoreCR)
  87       {
  88       // Append this character to the line under construction.
  89       this->Line.append(1, *c);
  90       }
  91     }
  92   return true;
  93 }