SIMPLE SOLUTIONS

EXPLAIN_PCLOSE_OR_DIE - reference manual online

Process I/O and report errors.

Chapter
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); fp The fp, exactly as to be passed to the pclose(3) system call. Returns: 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); fp The fp, exactly as to be passed to the pclose(3) system call. Returns: 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 fail‐ ure, 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); fp The fp, exactly as to be passed to the pclose(3) system call. Returns: 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
explain_pclose_or_die(3)
This manual Reference Other manuals
explain_pclose_or_die(3) referred by explain(3) | explain_pclose(3)
refer to _exit(2) | explain_pclose(3) | popen(3)