C++ (Cpp) gzFile Examples

Example #1

File: OFile.cpp Project: BingqingCheng/plumed2

size_t OFile::llwrite(const char*ptr,size_t s) {
  size_t r;
  if(linked) return linked->llwrite(ptr,s);
  if(! (comm && comm->Get_rank()>0)) {
    if(!fp) plumed_merror("writing on uninitilized File");
    if(gzfp) {
#ifdef __PLUMED_HAS_ZLIB
      r=gzwrite(gzFile(gzfp),ptr,s);
#else
      plumed_merror("file " + getPath() + ": trying to use a gz file without zlib being linked");
#endif
    } else {
      r=fwrite(ptr,1,s,fp);
    }
  }
//  This barrier is apparently useless since it comes
//  just before a Bcast.
//
//  Anyway, it looks like it is solving an issue that appeared on
//  TRAVIS (at least on my laptop) so I add it here.
//  GB
  if(comm) comm->Barrier();


  if(comm) comm->Bcast(r,0);
  return r;
}

Example #2

File: FileBase.cpp Project: edoardob90/plumed2

FileBase::~FileBase()
{
  if(plumed) plumed->eraseFile(*this);
  if(!cloned && fp)   fclose(fp);
#ifdef __PLUMED_HAS_ZLIB
  if(!cloned && gzfp) gzclose(gzFile(gzfp));
#endif
}

Example #3

File: IFile.cpp Project: jjmadsen/plumed2

void IFile::reset(bool reset){
 eof = reset;
 err = reset;
 if(!reset && fp) clearerr(fp);
#ifdef __PLUMED_HAS_ZLIB
 if(!reset && gzfp) gzclearerr(gzFile(gzfp));
#endif
 return;
} 

Example #4

File: FileBase.cpp Project: edoardob90/plumed2

void        FileBase::close(){
  plumed_assert(!cloned);
  eof=false;
  err=false;
  if(fp)   std::fclose(fp);
#ifdef __PLUMED_HAS_ZLIB
  if(gzfp) gzclose(gzFile(gzfp));
#endif
  fp=NULL;
  gzfp=NULL;
}

Example #5

File: OFile.cpp Project: BingqingCheng/plumed2

FileBase& OFile::flush() {
  if(heavyFlush) {
    if(gzfp) {
#ifdef __PLUMED_HAS_ZLIB
      gzclose(gzFile(gzfp));
      gzfp=(void*)gzopen(const_cast<char*>(path.c_str()),"a");
#endif
    } else {
      fclose(fp);
      fp=std::fopen(const_cast<char*>(path.c_str()),"a");
    }
  } else {
    FileBase::flush();
    // if(gzfp) gzflush(gzFile(gzfp),Z_FINISH);
    // for some reason flushing with Z_FINISH has problems on linux
    // I thus use this (incomplete) flush
#ifdef __PLUMED_HAS_ZLIB
    if(gzfp) gzflush(gzFile(gzfp),Z_FULL_FLUSH);
#endif
  }
  return *this;
}

Example #6

File: OFile.cpp Project: yongwangCPH/plumed2

size_t OFile::llwrite(const char*ptr,size_t s){
  size_t r;
  if(linked) return linked->llwrite(ptr,s);
  if(! (comm && comm->Get_rank()>0)){
    if(!fp) plumed_merror("writing on uninitilized File");
    if(gzfp){
#ifdef __PLUMED_HAS_ZLIB
      r=gzwrite(gzFile(gzfp),ptr,s);
#else
      plumed_merror("trying to use a gz file without zlib being linked");
#endif
    } else {
      r=fwrite(ptr,1,s,fp);
    }
  }
  if(comm) comm->Bcast(r,0);
  return r;
}

Example #7

File: IFile.cpp Project: jjmadsen/plumed2

size_t IFile::llread(char*ptr,size_t s){
  plumed_assert(fp);
  size_t r;
  if(gzfp){
#ifdef __PLUMED_HAS_ZLIB
    int rr=gzread(gzFile(gzfp),ptr,s);
    if(rr==0)   eof=true;
    if(rr<0)    err=true;
    r=rr;
#else
    plumed_merror("trying to use a gz file without zlib being linked");
#endif
  } else {
    r=fread(ptr,1,s,fp);
    if(feof(fp))   eof=true;
    if(ferror(fp)) err=true;
  }
  return r;
}