/* rm (remove) command
*/
static Error dxrm(char *dataset)
{
int rc, i;
pfs_stat_t ps;
/* no wildcards allowed, because there is no confirmation message -
* are you really sure you want to delete *?
*/
if (strchr(dataset, '*') || strchr(dataset, '?')) {
DXSetError(ERROR_DATA_INVALID, "#8250");
return ERROR;
}
if (pfs_stat(dataset, &ps) < 0) {
DXSetError(ERROR_DATA_INVALID, pfs_errmsg(pfs_errno));
return ERROR;
}
#if 0
DXMessage("would be calling pfs_delete(%s) here", dataset);
#else
if (pfs_delete(dataset) < 0) {
DXSetError(ERROR_DATA_INVALID, pfs_errmsg(pfs_errno));
return ERROR;
}
#endif
return OK;
}
int main(int argc, char *argv[])
{
int ifdes, fdes;
int err_value;
char input_fname[20];
char *buf;
ssize_t nread;
struct pfs_stat mystat;
int cache_hit;
// Initialize the client
initialize(argc, argv);
// the command line arguments include an input filename
if (argc < 2)
{
printf("usage: a.out <input filename>\n");
exit(0);
}
strcpy(input_fname, argv[1]);
ifdes = open(input_fname, O_RDONLY);
buf = (char *)malloc(4*ONEKB);
nread = pread(ifdes, (void *)buf, 3*ONEKB,8*ONEKB);
// All the clients open the pfs file
fdes = pfs_open("pfs_file1", 'w');
if(fdes < 0)
{
printf("Error opening file\n");
exit(0);
}
//At client 3: print the file metadata
pfs_fstat(fdes, &mystat);
printf("File Metadata:\n");
printf("Time of creation: %s\n", ctime(&(mystat.pst_ctime)));
printf("Time of last modification: %s\n", ctime(&(mystat.pst_mtime)));
printf("File Size: %d\n", mystat.pst_size);
//Write the next 3 kbytes of data from the input file onto pfs_file
err_value = pfs_write(fdes, (void *)buf, 3*ONEKB, 8*ONEKB, &cache_hit);
printf("Wrote %d bytes to the file\n", err_value);
err_value = pfs_read(fdes, (void *)buf, 2*ONEKB, ONEKB, &cache_hit);
printf("Read %d bytes of data from the file\n", err_value);
printf("%s\n",buf);
pfs_close(fdes);
pfs_delete("pfs_file1");
free(buf);
close(ifdes);
return 0;
}
