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Top Forums Programming Shelling Out to Give a System Command Drains Free Memory Post 302553672 by BrandonShw on Thursday 8th of September 2011 08:34:50 AM
Old 09-08-2011
I was judging free memory from:

grep MemFree /proc/meminfo
 

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explain_popen_or_die(3) 				     Library Functions Manual					   explain_popen_or_die(3)

NAME
explain_popen_or_die - process I/O and report errors SYNOPSIS
#include <libexplain/popen.h> FILE *explain_popen_or_die(const char *command, const char *flags); DESCRIPTION
The explain_popen_or_die function is used to call the popen(3) system call. On failure an explanation will be printed to stderr, obtained from explain_popen(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: FILE *fp = explain_popen_or_die(command, flags); command The command, exactly as to be passed to the popen(3) system call. flags The flags, exactly as to be passed to the popen(3) system call. Returns: This function only returns on success, see popen(3) for more information. On failure, prints an explanation and exits. SEE ALSO
popen(3) process I/O explain_popen(3) explain popen(3) errors exit(2) terminate the calling process COPYRIGHT
libexplain version 0.52 Copyright (C) 2009 Peter Miller explain_popen_or_die(3)
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