Go to the documentation of this file.00001 #include "IOPool/Streamer/interface/StreamerFileIO.h"
00002 #include <fstream>
00003 #include <iostream>
00004 #include "FWCore/Utilities/interface/Adler32Calculator.h"
00005 #include "FWCore/Utilities/interface/Exception.h"
00006
00007 OutputFile::OutputFile(const std::string& name):
00008 current_offset_(1),
00009 first_event_offset_(0),
00010 last_event_offset_(0),
00011 events_(0),
00012 run_(0),
00013 do_adler_(0),
00014 adlera_(1),
00015 adlerb_(0),
00016 ost_(new std::ofstream(name.c_str(), std::ios_base::binary | std::ios_base::out)),
00017 filename_(name)
00018 {
00019 if(!ost_->is_open()) {
00020 throw cms::Exception("OutputFile","OutputFile")
00021 << "Error Opening Output File: "<<name<<"\n";
00022 }
00023 ost_->rdbuf()->pubsetbuf(0,0);
00024 }
00025
00026 OutputFile::~OutputFile()
00027 {
00028 ost_->close();
00029 }
00030
00031 bool OutputFile::write(const char *ptr, size_t n)
00032 {
00033 ost_->write(ptr,n);
00034 if(!ost_->fail()) {
00035 current_offset_ += (uint64)(n);
00036 if (do_adler_)
00037 cms::Adler32(ptr,n,adlera_,adlerb_);
00038 return 0;
00039 }
00040 return 1;
00041 }
00042
1.7.3