/Users/barrand/private/dev/softinex/old/inexlib-1.2/inlib/inlib/sys/file

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// Copyright (C) 2010, Guy Barrand. All rights reserved.
// See the file inlib.license for terms.

#ifndef inlib_sys_file
#define inlib_sys_file

#include <string>
#include <cstdlib>
#include <cstdio>
#include <sstream>

#include <sys/stat.h>

#ifdef WIN32
#include <process.h>
#else
#include <unistd.h>
#endif

namespace inlib {

inline bool tmpname(const std::string& a_dir,const std::string& a_prefix,const std::string& a_suffix,std::string& a_name){
  //  a_dir must finish with the system path separator.
  std::string head;
  if(a_dir==".") {
  } else if(a_dir.size()) {
    head += a_dir;
  } else {
#ifdef WIN32
    char* env = ::getenv("HOMEDRIVE");
    std::string drive = (env? env : std::string("C:"));
    head += drive;
    head += "\\";
#else
    head += "/tmp/";
#endif
  }
  head += a_prefix;
  char spid[128];
#ifdef WIN32
  _snprintf(spid,sizeof(spid),"%d",::getpid());
#else
  ::snprintf(spid,sizeof(spid),"%d",::getpid());
#endif
  head += spid;
  head += "_";

  for(int count=0;count<1000;count++) {
    //std::ostringstream strm; //because of Android which has no STL.
    //strm.fill('0');
    //strm.width(3);
    //strm << count;
    char s[32];
#ifdef WIN32
    _snprintf(s,sizeof(s),"%03d",count);
#else
    ::snprintf(s,sizeof(s),"%03d",count);
#endif
    std::string tmpnm = head;
    tmpnm += s;
    //tmpnm += strm.str();
    tmpnm += a_suffix;
    struct stat finfo;
    if(::stat(tmpnm.c_str(),&finfo) < 0) {
      // No directory or file found :
      a_name = tmpnm; // Good file name.
      return true; 
    }
  }
  // No good name found :
  a_name.clear();
  return false;
}

}

#endif