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WAITSEM(3)
XENIX System V (21 1987)


waitsem, nbwaitsem - oae ocy pecypcy, apoy ceaopo

	int waitsem(sem_num)
	int sem_num;
	
	int nbwaitsem(sem_num)
	int sem_num;


Waitsem oeceae ocy pecypcy, apoy ceaopo sem_num. Ec pecypc coyec py poecco, waitsem epeo a poecc cocoe oa o ex op, oa pecypc e ocooc; ao cya nbwaitsem opaae aee ENAVAIL. Waitsem nbwaitsem coyc ece c sigsem cxpoa ocya oey pecypcy. K ooy ceaopy oy opac ecoo poecco c oo waitsem epeoc pe oa, oa poecc, ae pecypco, e ac sigsem. p o ypaee epeaec oepeoy poeccy, coey oepe oy ceaopy. Oepe ceaopy opayec o py "ep pe - ep ocye".

Ccea coecoc
Waitsem oe cooa pao c ceaopa, coa oepaoo cpee XENIX epc 3.0, o e cpee XENIX System V.

.
creatsem(3), opensem(3), sigsem(3).


B cyae o waitsem opaae -1. Ec sem_num peapeo e op ye oa opensem creatsem, epeeo errno pcaaec aee EBADF. Ec sem_num e ec yaaee a a a "ceaop", epeeo errno pcaaec aee ENOTNAM. Ec poecc, ae pecypco, e ocoo eo epe aepee, ce poecc, oae oepe oy pecypcy, oya errno co aee ENAVAIL. p o pecypc ocaec eopeeeo coco. Ec poecc a a waitsem e poeyooo oa sigsem, epeeo errno pcaaec aee EINVAL.

AEA
aa oooc cea oepaoo cpe XENIX , ooo, e oe peea pyx cceax UNIX. p oooe eoxoo yaa a -lx.
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