TRAIL_UnixUtils.H File Reference

#include <ostream>
#include <sys/types.h>
#include <dirent.h>
#include <sys/stat.h>
#include <unistd.h>

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Classes
class	Directory

Functions
std::string	TRAIL_CWD (void)
void	TRAIL_SafeRemove (const std::string &fname, const std::string &ext)
int	TRAIL_CD (const std::string &path, std::ostream *=NULL)
bool	TRAIL_FILEEXISTS (const std::string &fname)
bool	TRAIL_ISDIR (const std::string &fname)
bool	TRAIL_ISLINK (const std::string &fname)
int	TRAIL_CreateDirectory (const std::string &fname)
std::string	TRAIL_ResolveLink (const std::string &path)
std::string	ResolveLink (const std::string &path)

Function Documentation

std::string ResolveLink

(

const std::string &

path

)

Definition at line 103 of file TRAIL_UnixUtils.C.

References s, and x.

Referenced by TRAIL_RemeshShuffle().

{
  std::string retVal;
  char buf[1024];
  size_t s = readlink(path.c_str(),buf,1024);
  if(!(s <= 0)){
    buf[s] = '\0';
    retVal.assign(buf);
  }
  std::string::size_type x = retVal.find_last_of("/");
  if(x != std::string::npos)
    retVal.erase(x);
  return (retVal);
}

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int TRAIL_CD	(	const std::string &	path,
		std::ostream *	= NULL
	)

Definition at line 181 of file TRAIL_UnixUtils.C.

References TRAIL_CWD().

Referenced by TRAIL_AutoSurfer(), TRAIL_MergeRocinFiles(), TRAIL_RemeshWrite(), TRAIL_TransferSurfDataFILE(), and TRAIL_WriteWindow().

{
  if(ouf)
    *ouf << "TRAIL_CD: Switching directory from " 
         << TRAIL_CWD() << " to " << path << std::endl;
  int result = chdir(path.c_str());
  if(ouf)
    *ouf << "TRAIL_CD: CWD(" << TRAIL_CWD() << ")" << std::endl;
  return(result);

}

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int TRAIL_CreateDirectory

(

const std::string &

fname

)

Definition at line 81 of file TRAIL_UnixUtils.C.

Referenced by TRAIL_Debug(), TRAIL_RemeshAutoSurfer(), and TRAIL_RemeshWrite().

{
  return(mkdir(fname.c_str(),S_IRGRP | S_IXGRP  | S_IRWXU));  
}

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std::string TRAIL_CWD

(

void

)

Definition at line 174 of file TRAIL_UnixUtils.C.

Referenced by TRAIL_AutoSurfer(), TRAIL_CD(), TRAIL_MergeRocinFiles(), TRAIL_RemeshAutoSurfer(), TRAIL_RemeshRunDirSetup(), TRAIL_RemeshWrite(), TRAIL_TransferSurfDataFILE(), TRAIL_WriteWindow(), and GEM_Partition::WriteRocstar().

{
  char buf[1024];
  return(std::string(getcwd(buf,1024)));
}

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bool TRAIL_FILEEXISTS

(

const std::string &

fname

)

Definition at line 50 of file TRAIL_UnixUtils.C.

Referenced by TRAIL_RemeshWrite(), and TRAIL_SafeRemove().

{
  struct stat fstat;
  if(lstat(fname.c_str(),&fstat))
    return false;
  return true;
}

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bool TRAIL_ISDIR

(

const std::string &

fname

)

Definition at line 59 of file TRAIL_UnixUtils.C.

Referenced by TRAIL_RemeshWrite().

{
  struct stat fstat;
  if(stat(fname.c_str(),&fstat))
    return false;
  if(S_ISDIR(fstat.st_mode))
    return true;
  return false;
}

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bool TRAIL_ISLINK

(

const std::string &

fname

)

Definition at line 70 of file TRAIL_UnixUtils.C.

Referenced by TRAIL_RemeshWrite(), and TRAIL_SafeRemove().

{
  struct stat fstat;
  if(lstat(fname.c_str(),&fstat))
    return false;
  if(S_ISLNK(fstat.st_mode))
    return true;
  return(false);
}

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std::string TRAIL_ResolveLink

(

const std::string &

path

)

Definition at line 87 of file TRAIL_UnixUtils.C.

References s, and x.

{
  std::string retVal;
  char buf[1024];
  size_t s = readlink(path.c_str(),buf,1024);
  if(!(s <= 0)){
    buf[s] = '\0';
    retVal.assign(buf);
  }
  std::string::size_type x = retVal.find_last_of("/");
  if(x != std::string::npos)
    retVal.erase(x);
  return (retVal);
}

void TRAIL_SafeRemove	(	const std::string &	fname,
		const std::string &	ext
	)

Definition at line 32 of file TRAIL_UnixUtils.C.

References n, TRAIL_FILEEXISTS(), and TRAIL_ISLINK().

Referenced by TRAIL_RemeshWrite().

{
  if(!TRAIL_FILEEXISTS(fname))
    return;
  if(TRAIL_ISLINK(fname))
    unlink(fname.c_str());
  std::string savename_base(fname+"."+ext);
  std::string savename(savename_base);
  unsigned int n = 1;
  while(TRAIL_FILEEXISTS(savename)){
    std::ostringstream Ostr;
    Ostr << savename_base << n++;
    savename.assign(Ostr.str());
  }
  rename(fname.c_str(),savename.c_str());
}

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