sync: odevzdat vyrovnávací paměť cache na disk

Originální popis anglicky: sync - commit buffer cache to disk

Návod, kniha: Linux Programmer's Manual

STRUČNĚ

#include <unistd.h> void sync(void);

POPIS / INSTRUKCE

sync first commits inodes to buffers, and then buffers to disk.

CHYBY / ERRORY

This function is always successful.

ODPOVÍDAJÍCÍ

SVr4, SVID, X/OPEN, BSD 4.3

BUGS

According to the standard specification (e.g., SVID), sync() schedules the writes, but may return before the actual writing is done. However, since version 1.3.20 Linux does actually wait. (This still does not guarantee data integrity: modern disks have large caches.)

NOTES

Since glibc 2.2.2 the Linux prototype is as listed above, following the various standards. In libc4, libc5, and glibc up to 2.2.1 it was "int sync(void)", and sync always returned 0.

SOUVISEJÍCÍ

bdflush(2), fdatasync(2), fsync(2), sync(8), update(8)