m0_sm_ast_wait Struct Reference

#include <sm.h>

Collaboration diagram for m0_sm_ast_wait:

Data Fields
bool	aw_allowed
struct m0_atomic64	aw_active
struct m0_chan	aw_chan

Detailed Description

API of waiting for AST completion.

Use example:

struct m0_sm_ast_wait *wait  = ...;
struct m0_mutex       *guard = ...; // m0_sm_group::s_lock, when possible.

m0_sm_ast_wait_init(wait, guard);

// Thread A:
ast->sa_cb = ast_cb; // Must call m0_sm_ast_wait_signal() at the end.
m0_mutex_lock(guard);
m0_sm_ast_wait_post(wait, grp, ast);
m0_mutex_unlock(guard);

// Thread B:
m0_mutex_lock(guard);
m0_sm_ast_wait(wait);
m0_mutex_unlock(guard);

Definition at line 837 of file sm.h.

Field Documentation

aw_active

struct m0_atomic64 aw_active

Number of posted, still not completed ASTs.

Definition at line 841 of file sm.h.

aw_allowed

bool aw_allowed

Whether posting of ASTs is allowed.

Definition at line 839 of file sm.h.

aw_chan

struct m0_chan aw_chan

Channel on which AST completion is signalled.

Definition at line 843 of file sm.h.

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The documentation for this struct was generated from the following file:

• sm/sm.h