RFIO_POPEN(3) | Rfio Library Functions | RFIO_POPEN(3) |
rfio_popen, rfio_pclose - start a process and open a pipe to it
#include <sys/types.h>
#include "rfio_api.h"
FILE *rfio_popen (const char *command, const char *type);
int rfio_pclose (FILE *fs);
rfio_popen starts a process and opens a pipe to it.
command is a pointer to a string specifying the shell command to be executed.
type is a mode indicator for the pipe. One of the characters "r" or "w".
rfio_pclose waits for the forked process to terminate and returns the exit status of the command.
int c; FILE *rf; rf = rfio_popen (command, "r"); if (rf == NULL) { rfio_perror ("rfio_popen"); exit (1); } while ((c = rfio_pread (buf, 1, sizeof(buf), rf)) > 0) { ... } c = rfio_pclose (rf);
This routine returns NULL if the operation failed or a non-NULL pointer to a FILE structure if the operation was successful. If it fails, serrno variable is set appropriately.
LCG Grid Deployment Team
$Date: 2008/09/24 11:25:01 $ | LCG |