fom_interpose.c File Reference

#include "lib/assert.h"
#include "lib/misc.h"
#include "lib/buf.h"
#include "fop/fop.h"
#include "fop/fom_interpose.h"

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Enumerations
enum	{ INTERPOSE_CONT = M0_FSO_NR + 1 }

Functions
static int	thrall_finish (struct m0_fom *fom, struct m0_fom_interpose *proxy, int result)
static int	interpose_tick (struct m0_fom *fom)
M0_INTERNAL void	m0_fom_interpose_enter (struct m0_fom *fom, struct m0_fom_interpose *proxy)
M0_INTERNAL void	m0_fom_interpose_leave (struct m0_fom *fom, struct m0_fom_interpose *proxy)
M0_INTERNAL void	m0_fom_enthrall (struct m0_fom *leader, struct m0_fom *serf, struct m0_fom_thralldom *thrall, void(*end)(struct m0_fom_thralldom *thrall, struct m0_fom *serf))

Variables
enum { ... }	M0_XCA_DOMAIN
static const struct m0_fom_interpose_ops	thrall_ops

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
INTERPOSE_CONT

Definition at line 30 of file fom_interpose.c.

Function Documentation

interpose_tick()

static int interpose_tick ( struct m0_fom *  fom )

static

Definition at line 41 of file fom_interpose.c.

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m0_fom_enthrall()

M0_INTERNAL void m0_fom_enthrall	(	struct m0_fom *	leader,
		struct m0_fom *	serf,
		struct m0_fom_thralldom *	thrall,
		void(*)(struct m0_fom_thralldom *thrall, struct m0_fom *serf)	end
	)

Arranges for the leader to be woken up once the serf reaches M0_FOM_PHASE_FINISH, should be called by leader fom. It is up to the caller to make sure the serf is actually executing and that the leader goes to sleep.

Note

It is not required to initialise thrall context before call, all context preparation is done inside of this function.

Definition at line 102 of file fom_interpose.c.

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m0_fom_interpose_enter()

M0_INTERNAL void m0_fom_interpose_enter	(	struct m0_fom *	fom,
		struct m0_fom_interpose *	proxy
	)

Activates the interposition by substitution of original fom tick function with interposition tick.

Definition at line 81 of file fom_interpose.c.

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m0_fom_interpose_leave()

M0_INTERNAL void m0_fom_interpose_leave	(	struct m0_fom *	fom,
		struct m0_fom_interpose *	proxy
	)

Disables the interposition by restoring of original fom tick function.

Definition at line 95 of file fom_interpose.c.

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thrall_finish()

static int thrall_finish ( struct m0_fom *  fom, struct m0_fom_interpose *  proxy, int  result  )

static

Definition at line 65 of file fom_interpose.c.

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Variable Documentation

M0_XCA_DOMAIN

enum { ... } M0_XCA_DOMAIN

thrall_ops

const struct m0_fom_interpose_ops thrall_ops

static

Initial value:

= {
        .io_post = {
                [0 ... ARRAY_SIZE(thrall_ops.io_post) - 1] = &thrall_finish
        }
}

Definition at line 35 of file fom_interpose.c.