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rfio_popen
Langue: en
Version: $Date: 2008/09/24 11:25:01 $ (ubuntu - 24/10/10)
Section: 3 (Bibliothèques de fonctions)
NAME
rfio_popen, rfio_pclose - start a process and open a pipe to itSYNOPSIS
#include <sys/types.h>#include "rfio_api.h"
FILE *rfio_popen (const char *command, const char *type);
int rfio_pclose (FILE *fs);
DESCRIPTION
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.
EXAMPLE
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);
RETURN VALUE
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.ERRORS
- ENOMEM
- Not enough memory.
- EINVAL
- The mode provided is invalid.
- ECONNRESET
- Connection reset by peer
- ETIMEDOUT
- Connection timed out
- ECONNREFUSED
- Connection refused
- EHOSTUNREACH
- No route to host
- SENOSHOST
- Host unknown.
- SENOSSERV
- Service unknown.
- SEUMSG2LONG
- Command string too long.
- SECOMERR
- Communication error.
SEE ALSO
rfio_pread(3), rfio_pwrite(3)AUTHOR
LCG Grid Deployment TeamContenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre