SIMPLE SOLUTIONS

RFIO_PCLOSE(3) - Linux man page online | Library functions

Start a process and open a pipe to it.

Chapter
$Date: 2008/09/24 11:25:01 $
RFIO_POPEN(3) Rfio Library Functions RFIO_POPEN(3)

NAME

rfio_popen, rfio_pclose - start a process and open a pipe to it

SYNOPSIS

#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 struc‐ ture 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 Team
LCG $Date: 2008/09/24 11:25:01 $ RFIO_POPEN(3)
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rfio_pclose(3) referred by
refer to rfio_popen(3) | rfio_pread(3) | rfio_pwrite(3)
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