bool make_backup(const char * name)
{
char * backup;
if(fexist(name)) {
backup = backup_fn(name);
if(rename(name, backup) == 0) {
fprintf(stderr, "\nBack Off! I just backed up %s to %s\n",
name, backup);
} else {
fprintf(stderr, "Sorry couldn't backup %s to %s\n", name, backup);
return FALSE;
}
}
return TRUE;
}
gmx_bool make_backup(const char * name)
{
char * env;
int count_max;
char * backup;
#ifdef GMX_FAHCORE
return FALSE; /* skip making backups */
#else
if (gmx_fexist(name))
{
env = getenv("GMX_MAXBACKUP");
if (env != NULL)
{
count_max = strtol(env, NULL, 10);
if (count_max == -1)
{
/* Do not make backups and possibly overwrite old files */
return TRUE;
}
}
else
{
/* Use the default maximum */
count_max = -1;
}
backup = backup_fn(name, count_max);
if (rename(name, backup) == 0)
{
fprintf(stderr, "\nBack Off! I just backed up %s to %s\n",
name, backup);
}
else
{
fprintf(stderr, "Sorry couldn't backup %s to %s\n", name, backup);
return FALSE;
}
sfree(backup);
}
return TRUE;
#endif
}
void make_backup(const char *name)
{
if (s_maxBackupCount <= 0)
{
return;
}
if (gmx_fexist(name))
{
char *backup = backup_fn(name);
if (rename(name, backup) == 0)
{
fprintf(stderr, "\nBack Off! I just backed up %s to %s\n",
name, backup);
}
else
{
fprintf(stderr, "\nSorry couldn't backup %s to %s\n", name, backup);
}
sfree(backup);
}
}
/*****************************************************************
*
* EXPORTED SECTION
*
*****************************************************************/
int gmx_fio_open(const char *fn,const char *mode)
{
t_fileio *fio=NULL;
int i,nfio=0;
char *bf,newmode[5];
bool bRead;
int xdrid;
if (fn2ftp(fn)==efTPA)
{
strcpy(newmode,mode);
}
else
{
if (mode[0]=='r')
{
strcpy(newmode,"r");
}
else if (mode[0]=='w')
{
strcpy(newmode,"w");
}
else if (mode[0]=='a')
{
strcpy(newmode,"a");
}
else
{
gmx_fatal(FARGS,"DEATH HORROR in gmx_fio_open, mode is '%s'",mode);
}
}
/* Check if it should be opened as a binary file */
if (strncmp(ftp2ftype(fn2ftp(fn)),"ASCII",5))
{
/* Not ascii, add b to file mode */
if ((strchr(newmode,'b')==NULL) && (strchr(newmode,'B')==NULL))
{
strcat(newmode,"b");
}
}
/* Determine whether we have to make a new one */
for(i=0; (i<nFIO); i++)
{
if (!FIO[i].bOpen)
{
fio = &(FIO[i]);
nfio = i;
break;
}
}
if (i == nFIO)
{
nFIO++;
srenew(FIO,nFIO);
fio = &(FIO[nFIO-1]);
nfio = nFIO-1;
}
bRead = (newmode[0]=='r');
fio->fp = NULL;
fio->xdr = NULL;
if (fn)
{
fio->iFTP = fn2ftp(fn);
fio->fn = strdup(fn);
fio->bStdio = FALSE;
/* If this file type is in the list of XDR files, open it like that */
if (in_ftpset(fio->iFTP,asize(ftpXDR),ftpXDR))
{
/* First check whether we have to make a backup,
* only for writing, not for read or append.
*/
if (newmode[0]=='w')
{
#ifndef GMX_FAHCORE
/* only make backups for normal gromacs */
if (gmx_fexist(fn))
{
bf=(char *)backup_fn(fn);
if (rename(fn,bf) == 0)
{
fprintf(stderr,"\nBack Off! I just backed up %s to %s\n",fn,bf);
}
else
{
fprintf(stderr,"Sorry, I couldn't backup %s to %s\n",fn,bf);
}
}
#endif
}
else
{
/* Check whether file exists */
if (!gmx_fexist(fn))
{
gmx_open(fn);
}
}
snew(fio->xdr,1);
xdrid = xdropen(fio->xdr,fn,newmode);
if (xdrid == 0)
{
if(newmode[0]=='r')
gmx_fatal(FARGS,"Cannot open file %s for reading\nCheck permissions if it exists.",fn);
else
gmx_fatal(FARGS,"Cannot open file %s for writing.\nCheck your permissions, disk space and/or quota.",fn);
}
fio->fp = xdr_get_fp(xdrid);
}
else
{
/* If it is not, open it as a regular file */
fio->fp = ffopen(fn,newmode);
}
}
else
{
/* Use stdin/stdout for I/O */
fio->iFTP = efTPA;
fio->fp = bRead ? stdin : stdout;
fio->fn = strdup("STDIO");
fio->bStdio = TRUE;
}
fio->bRead = bRead;
fio->bDouble= (sizeof(real) == sizeof(double));
fio->bDebug = FALSE;
fio->bOpen = TRUE;
return nfio;
}
