Re: ¿Por qué da un Segmentation Fault?

Article View: es.comp.os.linux.programacion

Article #8910

Back to es.comp.os.linux.programacion Previous Next

#8910

From: Jordi
Date: Mon, 16 Sep 2002 18:16

34 lines
2243 bytes

Je, si tuviera las man instaladas... pero mira:

int sem_init(sem_t *sem, int pshared, unsigned int value);

If the pshared argument has a non-zero value, then the semaphore is 
shared between processes; in this case, any process that can access the 
semaphore sem can use sem for performing sem_wait(3RT) , 
sem_trywait(3RT) , sem_post(3RT) , and sem_destroy(3RT)  operations.

Si el segundo par�metro no es cero, entonces el sem�foro se puede usar 
entre procesos.

Pero si compruebo el error:
  if((error =  sem_init(&sem, 1, 1))==-1)
     perror("sem_init");

devuelve:
sem_init: Function not implemented

�C�mo que no est� implementada? Me estoy volviendo mico. ��Me lo expliquen??


NotFound escribi�::
> 
> 
> Segun la pagina man, el segundo parametro debe ser 0 o sem_init
> devolvera un error... pero claro, no te molestas en comprobar si
> devuelve error.
> 
> Salu2

-- 
Ad�u.
Jordi Catal�n Morros

Technical Details

Message-ID: <am577m$frr$1@nsnmpen2-gest.nuria.telefonica-data.net>

Path:

arc1-ca.pugleaf.net!archiver1.google.com!news1.google.com!newsfeed.stanford.edu!news-spur1.maxwell.syr.edu!news.maxwell.syr.edu!fu-berlin.de!nsnmpen1-lo.nuria.telefonica-data.net!nsnmpen2-lo.nuria.telefonica-data.net!not-for-mail

References: <am51kh$dt4$1@nsnmpen2-gest.nuria.telefonica-data.net> <3D861298.7E42AA78@tengo.no>

Show Full Headers

Complete Article Headers

X-Google-Language: SPANISH,ASCII
X-Google-Thread: f86c8,b9a6d11d918e2af1
X-Google-Attributes: gidf86c8,public
X-Google-ArrivalTime: 2002-09-16 11:17:30 PST
Path: arc1-ca.pugleaf.net!archiver1.google.com!news1.google.com!newsfeed.stanford.edu!news-spur1.maxwell.syr.edu!news.maxwell.syr.edu!fu-berlin.de!nsnmpen1-lo.nuria.telefonica-data.net!nsnmpen2-lo.nuria.telefonica-data.net!not-for-mail
From: Jordi <jordi@alumnos.upco.es>
Newsgroups: es.comp.os.linux.programacion
Subject: Re: ¿Por qué da un Segmentation Fault?
Date: Mon, 16 Sep 2002 20:16:15 +0200
Organization: UPCO
Lines: 35
Message-ID: <am577m$frr$1@nsnmpen2-gest.nuria.telefonica-data.net>
References: <am51kh$dt4$1@nsnmpen2-gest.nuria.telefonica-data.net> <3D861298.7E42AA78@tengo.no>
NNTP-Posting-Host: 80-24-57-11.uc.nombres.ttd.es
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-15; format=flowed
Content-Transfer-Encoding: 8bit
X-Trace: nsnmpen2-gest.nuria.telefonica-data.net 1032200246 16251 80.24.57.11 (16 Sep 2002 18:17:26 GMT)
X-Complaints-To: usenet@nsnmpen2-gest.nuria.telefonica-data.net
NNTP-Posting-Date: Mon, 16 Sep 2002 18:17:26 +0000 (UTC)
User-Agent: Mozilla/5.0 (X11; U; Linux i686; es-AR; rv:1.1) Gecko/20020826
X-Accept-Language: es

Reply to Parent Message