Scroll to navigation

explain_pclose_or_die(3) Library Functions Manual explain_pclose_or_die(3)

NAME

explain_pclose_or_die - process I/O and report errors

SYNOPSIS

#include <libexplain/pclose.h>

int explain_pclose_or_die(FILE *fp);
int explain_pclose_success(FILE *fp);
void explain_pclose_success_or_die(FILE *fp);

DESCRIPTION

These functions may be used to wait for program termination, and then reprt errors returned by the pclose(3) system call.

explain_pclose_or_die

int explain_pclose_or_die(FILE *fp);

The explain_pclose_or_die function is used to call the pclose(3) system call. On failure an explanation will be printed to stderr, obtained from explain_pclose(3), and then the process terminates by calling exit(EXIT_FAILURE).

This function is intended to be used in a fashion similar to the following example:

int status = explain_pclose_or_die(fp);
The fp, exactly as to be passed to the pclose(3) system call.
This function only returns on success, see pclose(3) for more information. On failure, prints an explanation and exits.

explain_pclose_success_or_die

void explain_pclose_success_or_die(FILE *);

The explain_pclose_success_or_die function is used to call the pclose(3) system call. On failure, including any exit status other than EXIT_SUCCESS, an explanation will be printed to stderr, obtained from explain_pclose(3), and then the process terminates by calling exit(EXIT_FAILURE).

This function is intended to be used in a fashion similar to the following example:

explain_pclose_success_or_die(fp);
The fp, exactly as to be passed to the pclose(3) system call.
This function only returns on success. On failure, prints an explanation and exits.

explain_pclose_success

int explain_pclose_success(FILE *fp);

The explain_pclose_success function is used to call the pclose(3) system call. On failure, including any exit status other than EXIT_SUCCESS, an explanation will be printed to stderr, obtained from explain_pclose(3). However, the priniting of an error message does not also cause exit(2) to be called.

This function is intended to be used in a fashion similar to the following example:

int status = explain_pclose_success(command);
The fp, exactly as to be passed to the pclose(3) system call.
the value returned by the pclose(3) system call. In all cases other than EXIT_SUCCESS, an error message will also have been printed to stderr.

SEE ALSO

pclose(3)
process I/O
explain_pclose(3)
explain pclose(3) errors
exit(2)
terminate the calling process

COPYRIGHT

libexplain version 1.4
Copyright (C) 2009 Peter Miller