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// directory.cpp
// Revision 9-jan-2005
#include "directory.h"
#include "error.h"
#include "showerror.h"
#include "trace.h"
#include <stdio.h>
#include <errno.h>
// We use the unix style even on windows under cygwin.
#if defined __unix__ || defined __linux__ || defined __NetBSD__ || \
defined __APPLE__
#define USE_UNIX
#endif
#ifdef USE_UNIX
#include <unistd.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/utsname.h>
#include <glob.h>
#else
#include <windows.h>
#include <dir.h>
#include <dos.h>
#ifdef __MINGW32__
#include <io.h>
#else
using std::unlink;
#endif
#endif
// ********************* Directory::Internal *************************
class Directory::Internal {
public:
Internal ();
~Internal ();
std::string findfirst (const std::string & str);
std::string findnext ();
void closesearch ();
private:
Internal (const Internal &); // Forbidden
Internal & operator = (const Internal &); // Forbidden
bool finding;
#ifdef USE_UNIX
glob_t g;
size_t n;
#else
WIN32_FIND_DATA fd;
HANDLE h;
#endif
};
Directory::Internal::Internal () :
finding (false)
{
}
Directory::Internal::~Internal ()
{
TRACEFUNC (tr, "Directory::Internal::~Internal");
if (finding)
closesearch ();
}
std::string Directory::Internal:: findfirst (const std::string & str)
{
if (finding)
closesearch ();
finding= true;
#ifdef USE_UNIX
glob (str.c_str (), 0, NULL, & g);
if (g.gl_pathc == 0)
{
closesearch ();
return std::string ();
}
n= 1;
return g.gl_pathv [0];
#else
h= FindFirstFile (str.c_str (), & fd);
if (h == INVALID_HANDLE_VALUE)
{
closesearch ();
return std::string ();
}
return fd.cFileName;
#endif
}
std::string Directory::Internal:: findnext ()
{
if (! finding)
return std::string ();
#ifdef USE_UNIX
if (n >= static_cast <size_t> (g.gl_pathc) )
{
closesearch ();
return std::string ();
}
++n;
return g.gl_pathv [n - 1];
#else
if (! FindNextFile (h, & fd) )
{
closesearch ();
return std::string ();
}
return fd.cFileName;
#endif
}
void Directory::Internal::closesearch ()
{
#ifdef USE_UNIX
globfree (& g);
#else
if (h != INVALID_HANDLE_VALUE)
FindClose (h);
#endif
finding= false;
}
// ********************* Directory *************************
Directory::Directory () :
pin (new Internal)
{
}
Directory::~Directory ()
{
delete pin;
}
std::string Directory::findfirst (const std::string & str)
{
return pin->findfirst (str);
}
std::string Directory::findnext ()
{
return pin->findnext ();
}
// ********************* Other functions *************************
void remove_file (const std::string & filename)
{
if (unlink (filename.c_str () ) != 0)
{
switch (errno)
{
case ENOENT:
throw ErrFileNotFound;
default:
showlasterror ();
throw ErrOperatingSystem;
}
}
}
void rename_file (const std::string & orig, const std::string & dest)
{
if (rename (orig.c_str (), dest.c_str () ) != 0)
{
switch (errno)
{
case ENOENT:
throw ErrFileNotFound;
default:
showlasterror ();
throw ErrRenameFile;
}
}
}
void change_dir (const std::string & dirname)
{
if (chdir (dirname.c_str () ) != 0)
{
showlasterror ();
throw ErrOperatingSystem;
}
}
void make_dir (const std::string & dirname)
{
#ifdef USE_UNIX
int r= mkdir (dirname.c_str (), 0777);
#else
int r= mkdir (dirname.c_str () );
#endif
if (r != 0)
{
showlasterror ();
throw ErrOperatingSystem;
}
}
void remove_dir (const std::string & dirname)
{
if (rmdir (dirname.c_str () ) != 0)
{
showlasterror ();
throw ErrOperatingSystem;
}
}
void sleep_milisec (unsigned long n)
{
TRACEFUNC (tr, "sleep_milisec");
#ifdef USE_UNIX
if (n == 0)
{
usleep (0);
}
else
{
n*= 1000;
unsigned int sec= n / 1000000;
n%= 1000000;
TRMESSAGE (tr, util::to_string (sec) + " sec, " +
util::to_string (n) + " microsec");
if (sec > 0)
sleep (sec);
if (n > 0)
usleep (n);
}
#else
Sleep (static_cast <DWORD> (n) );
#endif
}
// End of directory.cpp
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