Messages in this thread |  | | Subject | Re: Multithreaded locks.c | Date | Sat, 4 Nov 2000 18:20:19 +0000 (GMT) | From | Alan Cox <> |
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> have got it right. Does anyone know what this part of the > flock(2) manpage means? > > A single file may not simultaneously have both shared and > exclusive locks.
AFAIK its saying LOCK_EX is exclusive and blocks shared locks and vice versa. Its a standard reader-writer lock setup. LOCK_EX is writer, LOCK_SH is reader.
Alan
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