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explain_munmap_or_die(3) Library Functions Manual explain_munmap_or_die(3) NAME explain_munmap_or_die - unmap a file or device from memory and report errors SYNOPSIS #include <libexplain/munmap.h> void explain_munmap_or_die(void *data, size_t data_size); int explain_munmap_on_error(void *data, size_t data_size); DESCRIPTION The explain_munmap_or_die function is used to call the munmap(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_munmap(3) function, and then the process terminates by calling exit(EXIT_FAILURE). The explain_munmap_on_error function is used to call the munmap(2) sys- tem call. On failure an explanation will be printed to stderr, obtained from the explain_munmap(3) function, but still returns to the caller. data The data, exactly as to be passed to the munmap(2) system call. data_size The data_size, exactly as to be passed to the munmap(2) system call. RETURN VALUE The explain_munmap_or_die function only returns on success, see mun- map(2) for more information. On failure, prints an explanation and ex- its, it does not return. The explain_munmap_on_error function always returns the value return by the wrapped munmap(2) system call. EXAMPLE The explain_munmap_or_die function is intended to be used in a fashion similar to the following example: explain_munmap_or_die(data, data_size); SEE ALSO munmap(2) unmap a file or device from memory explain_munmap(3) explain munmap(2) errors exit(2) terminate the calling process COPYRIGHT libexplain version 1.3 Copyright (C) 2010 Peter Miller explain_munmap_or_die(3)
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | EXAMPLE | SEE ALSO | COPYRIGHT
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