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SIGSEM(3)
XENIX System V (21 1987)


sigsem - ocae ca poeccy, oop axoc oepe ceaopy

	int sigsem(sem_num)
	int sem_num;


Sigsem ocae ca poeccy, oop axoc oepe ceaopy sem_num, o oce o cooa pecypc, ap ceaopo. Sigsem coyec ece c waitsem(3) cxpoa ocya poecco ooy pecypcy. Hecoo poecco oy a cce o waitsem a o ceaop. p o o epey cocoe oa, oa poecc, e ocy pecypcy, e ac cce o sigsem. Ec oax poecco ecoo, ypaee ye epeao epoy oepe ceaopy. Oepe ceaopy opayec o py "ep pe - ep ocye" (FIFO).

.
creatsem(3), opensem(3), waitsem(3).

Ccea coecoc
Sigsem oe cooa oo c ceaopa, coa oepaoo ccee XENIX epc 3.0, o e ccee XENIX System V.


B cyae o sigsem opaae -1. Ec sem_num e yaae a a a "ceaop", epeeo errno pcaaec aee ENOTNAM. Ec sem_num e op cce oo opensem, epeeo errno pcaaec aee EBADF. Ec a poecc e ec aee ceaopa (o ec o poecc peapeo e a cce o waitsem), epeeo errno pcaaec aee ENAVAIL.

AEA
aa oooc ec co cceo aco. p oooe eoxoo cooa a -lx.
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