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// -*- C++ -*-
//
// CFileLineReader.cc is a part of ThePEG - Toolkit for HEP Event Generation
// Copyright (C) 1999-2011 Leif Lonnblad
//
// ThePEG is licenced under version 2 of the GPL, see COPYING for details.
// Please respect the MCnet academic guidelines, see GUIDELINES for details.
//
//
// This is the implementation of the non-inlined, non-templated member
// functions of the CFileLineReader class.
//
#include "CFile.h"
#include "config.h"
#include <cstdlib>
#include <cstdio>
#include "Throw.h"
#include <cstring>
#ifdef HAVE_LIBZ
#include <zlib.h>
#else
typedef void * gzFile;
#endif
#ifdef HAVE_LIBBZ2_NEVER
#include <bzlib.h>
#else
typedef void BZFILE;
#endif
using namespace ThePEG;
void CFile::open(string filename, string mode) {
close();
if ( filename[filename.length()-1] == '|' &&
mode.find("r") != string::npos ) {
filename = filename.substr(0, filename.length() - 1);
file = popen(filename.c_str(), mode.c_str());
fileType = pipe;
}
else if ( filename[0] == '|' &&
mode.find("w") != string::npos ) {
filename = filename.substr(1);
file = popen(filename.c_str(), mode.c_str());
fileType = pipe;
}
else if ( filename.substr(filename.length()-3,3) == ".gz" ) {
#ifdef HAVE_LIBZ
file = gzopen(filename.c_str(), mode.c_str());
fileType = gzip;
#else
#ifdef ThePEG_GZREAD_FILE
#ifdef ThePEG_GZWRITE_FILE
if ( mode.find("r") != string::npos )
filename = ThePEG_GZREAD_FILE " " + filename + " 2>/dev/null";
else
filename = ThePEG_GZWRITE_FILE " " + filename + " 2>/dev/null";
file = popen(filename.c_str(), mode.c_str());
fileType = pipe;
#else
file = fopen(filename.c_str(), mode.c_str());
fileType = plain;
#endif
#endif
#endif
}
else if ( filename.substr(filename.length()-4,4) == ".bz2" ) {
#ifdef HAVE_LIBBZ2_NEVER
file = BZ2_bzopen(filename.c_str(), mode.c_str());
fileType = bzip2;
#else
#ifdef ThePEG_BZ2READ_FILE
#ifdef ThePEG_BZ2WRITE_FILE
if ( mode.find("r") != string::npos )
filename = ThePEG_BZ2READ_FILE " " + filename + " 2>/dev/null";
else
filename = ThePEG_BZ2WRITE_FILE " " + filename + " 2>/dev/null";
file = popen(filename.c_str(), mode.c_str());
fileType = pipe;
#else
file = fopen(filename.c_str(), mode.c_str());
fileType = plain;
#endif
#endif
#endif
}
else {
file = fopen(filename.c_str(), mode.c_str());
fileType = plain;
}
if ( !file ) {
Throw<FileError>()
<< std::strerror(errno) << ": " << filename
<< Exception::runerror;
}
}
void CFile::close() {
if ( !file ) {
fileType = undefined;
return;
}
switch ( fileType ) {
case plain:
fclose((FILE*)file);
break;
case pipe:
pclose((FILE*)file);
break;
#ifdef HAVE_LIBZ
case gzip:
gzclose((gzFile)file);
break;
#endif
#ifdef HAVE_LIBBZ2_NEVER
case bzip2:
BZ2_bzclose(file);
break;
#endif
default:
break;
}
file = 0;
fileType = undefined;
}
char * CFile::gets(char * s, int size) {
switch ( fileType ) {
case plain:
case pipe: return fgets(s, size, (FILE*)file);
#ifdef HAVE_LIBZ
case gzip: return gzgets((gzFile)file, s, size);
#endif
#ifdef HAVE_LIBBZ2_NEVER
case bzip2: // don't know what to do here
#endif
default:
return 0;
}
}
int CFile::puts(const char * s) {
switch ( fileType ) {
case plain:
case pipe: return fputs(s, (FILE*)file);
#ifdef HAVE_LIBZ
case gzip: return gzputs((gzFile)file, s);
#endif
#ifdef HAVE_LIBBZ2_NEVER
case bzip2: // don't know what to do here
#endif
default:
return 0;
}
}
int CFile::getc() {
switch ( fileType ) {
case plain:
case pipe: return fgetc((FILE*)file);
#ifdef HAVE_LIBZ
case gzip: return gzgetc((gzFile)file);
#endif
#ifdef HAVE_LIBBZ2_NEVER
case bzip2:// don't know what to do here
#endif
default:
return 0;
}
}
int CFile::putc(int c) {
switch ( fileType ) {
case plain:
case pipe: return fputc(c, (FILE*)file);
#ifdef HAVE_LIBZ
case gzip: return gzputc((gzFile)file, c);
#endif
#ifdef HAVE_LIBBZ2_NEVER
case bzip2: // don't know what to do here
#endif
default:
return 0;
}
}
int CFile::ungetc(int c) {
switch ( fileType ) {
case plain:
case pipe: return std::ungetc(c, (FILE*)file);
#ifdef HAVE_LIBZ
case gzip: return gzungetc(c, (gzFile)file);
#endif
#ifdef HAVE_LIBBZ2_NEVER
case bzip2: // don't know what to do here
#endif
default:
return 0;
}
}
size_t CFile::read(void *ptr, size_t size, size_t nmemb) {
switch ( fileType ) {
case plain:
case pipe: return fread(ptr, size, nmemb, (FILE*)file);
#ifdef HAVE_LIBZ
case gzip: return gzread((gzFile)file, ptr, size);
#endif
#ifdef HAVE_LIBBZ2_NEVER
case bzip2: return BZ2_bzread(file, ptr, size);
#endif
default:
return 0;
}
}
size_t CFile::write(const void *ptr, size_t size, size_t nmemb) {
switch ( fileType ) {
case plain:
case pipe: return fwrite(ptr, size, nmemb, (FILE*)file);
#ifdef HAVE_LIBZ
case gzip: return gzwrite((gzFile)file, ptr, size);
#endif
#ifdef HAVE_LIBBZ2_NEVER
case bzip2: return BZ2_bzwrite(file, ptr, size);
#endif
default:
return 0;
}
}
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