MD Service Operations

Data Structures
struct	m0_reqh_md_service

Macros
#define	M0_TRACE_SUBSYSTEM   M0_TRACE_SUBSYS_MDS

Functions
static int	mds_allocate (struct m0_reqh_service **service, const struct m0_reqh_service_type *stype)
static void	mds_fini (struct m0_reqh_service *service)
static int	mds_start (struct m0_reqh_service *service)
static void	mds_stop (struct m0_reqh_service *service)
M0_INTERNAL int	m0_mds_register (void)
M0_INTERNAL void	m0_mds_unregister (void)

Variables
static const struct m0_reqh_service_type_ops	mds_type_ops
static const struct m0_reqh_service_ops	mds_ops
struct m0_reqh_service_type	m0_mds_type
struct m0_reqh_md_service	M0_XCA_DOMAIN

Detailed Description

See also

Request handler

MD Service defines service operation vector -

• MD Service operation m0_mds_start()
  Initiate buffer_pool and register I/O FOP with service
• MD Service operation m0_mds_stop()
  Free buffer_pool and unregister I/O FOP with service
• MD Service operation m0_mds_fini()
  Free MD Service instance.

Macro Definition Documentation

M0_TRACE_SUBSYSTEM

#define M0_TRACE_SUBSYSTEM   M0_TRACE_SUBSYS_MDS

Definition at line 27 of file md_service.c.

Function Documentation

m0_mds_register()

M0_INTERNAL int m0_mds_register

(

void

)

Definition at line 79 of file md_service.c.

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m0_mds_unregister()

M0_INTERNAL void m0_mds_unregister

(

void

)

Definition at line 104 of file md_service.c.

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mds_allocate()

static int mds_allocate ( struct m0_reqh_service **  service, const struct m0_reqh_service_type *  stype  )

static

Allocates and initiates MD Service instance. This operation allocates & initiates service instance with its operation vector.

Definition at line 122 of file md_service.c.

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mds_fini()

static void mds_fini ( struct m0_reqh_service *  service )

static

Finalise MD Service instance. This operation finalises service instance and de-allocate it.

Parameters

service

pointer to service instance.

Precondition

service != NULL

Definition at line 148 of file md_service.c.

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mds_start()

static int mds_start ( struct m0_reqh_service *  service )

static

Start MD Service.

Parameters

service

pointer to service instance.

Precondition

service != NULL

Todo:

XXX change this when reqh will be started before services, see MOTR-317

Definition at line 164 of file md_service.c.

mds_stop()

static void mds_stop ( struct m0_reqh_service *  service )

static

Stops MD Service.

Parameters

service

pointer to service instance.

Precondition

service != NULL

Definition at line 197 of file md_service.c.

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Variable Documentation

m0_mds_type

struct m0_reqh_service_type m0_mds_type

Initial value:

= {
        .rst_name     = "M0_CST_MDS",
        .rst_ops      = &mds_type_ops,
        .rst_level    = M0_MD_SVC_LEVEL,
        .rst_typecode = M0_CST_MDS,
}

Definition at line 72 of file md_service.c.

M0_XCA_DOMAIN

struct m0_reqh_md_service M0_XCA_DOMAIN

mds_ops

const struct m0_reqh_service_ops mds_ops

static

Initial value:

= {
        .rso_start       = mds_start,
        .rso_start_async = m0_reqh_service_async_start_simple,
        .rso_stop        = mds_stop,
        .rso_fini        = mds_fini
}

MD Service operations.

Definition at line 65 of file md_service.c.

mds_type_ops

const struct m0_reqh_service_type_ops mds_type_ops

static

Initial value:

= {
        .rsto_service_allocate = mds_allocate
}

MD Service type operations.

Definition at line 58 of file md_service.c.