sys/src/postef.c File Reference

post event flag More...

#include <linux/sched.h>
#include <asm/bitops.h>
#include <ssdef.h>
#include <cebdef.h>
#include <evtdef.h>
#include <ipldef.h>
#include <system_data_cells.h>
#include <ipl.h>
#include <internals.h>
#include <exe_routines.h>
#include <sch_routines.h>
#include <misc_routines.h>

Go to the source code of this file.

Defines
#define	MYDEB_EFC
Functions
int	waitcheck (struct _pcb *p, unsigned long priclass, unsigned long *efp, unsigned long *clusteraddr)
	check whether this flag satisfies a wait request for this process
int	waitcheck2 (struct _pcb *p, unsigned long priclass, unsigned long *efp, unsigned long *clusteraddr)
	check whether this flag satisfies a wait request for this process
int	sch_postef (unsigned long ipid, unsigned long priclass, unsigned long efn)
	setting an event flag - see 5.2 9.7
Variables
long	efc [32 *1024]
long	efcc [32] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }

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Detailed Description

post event flag

Author:

Roar Thronæs

Definition in file postef.c.

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Define Documentation

#define MYDEB_EFC

Definition at line 25 of file postef.c.

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Function Documentation

int sch_postef	(	unsigned long	ipid,
		unsigned long	priclass,
		unsigned long	efn
	)

setting an event flag - see 5.2 9.7

Parameters:

	ipid	internal process id
	priclass	at which priority class
	efn	event flag number

sched spinlock

does process still exist

test event flag legality

if non-common event flag

test if set

wait satisfied?

common event flag

locate ceb

wait satisfied?

unlock sched spinlock

Definition at line 86 of file postef.c.

References _pcb, _ceb::ceb_l_wqfl, efc, efcc, exe_ipid_to_pcb(), getefc(), getefcno(), getefcp(), IPL__SYNCH, SPIN_SCHED, SS__ILLEFC, SS__NONEXPR, SS__UNASEFC, SS__WASCLR, SS__WASSET, waitcheck(), and waitcheck2().

Referenced by bufpost(), exe_getdvi(), exe_getjpi(), exe_getsyi(), exe_qio(), exe_setef(), exe_swtimint(), ioc_iopost(), and lck_grant_lock().

int waitcheck	(	struct _pcb *	p,
		unsigned long	priclass,
		unsigned long *	efp,
		unsigned long *	clusteraddr
	)

check whether this flag satisfies a wait request for this process

for single flags < 64

Parameters:

	p	the process pcb
	priclass	the priority calss
	efp	event flag pointer
	clusteraddr	address of the cluster

if wait satisfied invoke sch_rse

Definition at line 36 of file postef.c.

References sch_rse().

Referenced by sch_postef().

int waitcheck2	(	struct _pcb *	p,
		unsigned long	priclass,
		unsigned long *	efp,
		unsigned long *	clusteraddr
	)

check whether this flag satisfies a wait request for this process

for common flags >= 64

Parameters:

	p	the process pcb
	priclass	the priority calss
	efp	event flag pointer
	clusteraddr	address of the cluster

if wait satisfied invoke sch_rse

Definition at line 59 of file postef.c.

References sch_rse().

Referenced by sch_postef().

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Variable Documentation

long efc[32 *1024]

Definition at line 75 of file postef.c.

Referenced by exe_clref(), and sch_postef().

long efcc[32] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }

Definition at line 76 of file postef.c.

Referenced by exe_clref(), and sch_postef().