Synchronization primitives using conditions

nm_cond_* functions are used to manage synchronization with & without pioman. More...

static void	nm_cond_init (nm_cond_status_t *p_cond, nm_status_t bitmask)
	initialize a nm_cond_status_t object
static void	nm_cond_destroy (nm_cond_status_t *p_cond)
	free resources associated with a nm_cond_status_t object
static nm_status_t	nm_cond_test (const nm_cond_status_t *p_cond, nm_status_t bitmask)
	test whether the given bit is set in the status; unlocked, weak consistency
static nm_status_t	nm_cond_test_locked (const nm_cond_status_t *p_cond, nm_status_t bitmask)
	test whether the given bit is set in the status; locked, guaranteed consistency, slower
static void	nm_cond_add (nm_cond_status_t *p_cond, nm_status_t bitmask)
	add a bit to the bitmask in the status, do not unlock waiters (for bits that will not be waited for)
static void	nm_cond_wait (nm_cond_status_t *p_cond, nm_status_t bitmask, nm_core_t p_core)
	wait for the given bit to be set in the status; do active polling while waiting
static void	nm_cond_signal (nm_cond_status_t *p_cond, nm_status_t bitmask)
	add a bit and wake up threads waiting for it
static void	nm_cond_wait_all (void **pp_conds, int n, uintptr_t offset, nm_status_t bitmask, nm_core_t p_core)
	wait on multiple statuses at the same time
static void	nm_cond_destroy (nm_cond_status_t *p_cond __attribute__((unused)))
static void	nm_cond_mask (nm_cond_status_t *p_cond, nm_status_t bitmask)

Detailed Description

nm_cond_* functions are used to manage synchronization with & without pioman.

They are used internally for request status but may be used by endusers for synchronization with monitor handlers

Function Documentation

nm_cond_add()

static void nm_cond_add ( nm_cond_status_t *  p_cond, nm_status_t  bitmask  )

inlinestatic

add a bit to the bitmask in the status, do not unlock waiters (for bits that will not be waited for)

Definition at line 737 of file nm_core_interface.h.

Referenced by nm_status_add().

nm_cond_destroy() [1/2]

static void nm_cond_destroy ( nm_cond_status_t *p_cond   __attribute__(unused) )

inlinestatic

Definition at line 723 of file nm_core_interface.h.

nm_cond_destroy() [2/2]

static void nm_cond_destroy ( nm_cond_status_t *  p_cond )

inlinestatic

free resources associated with a nm_cond_status_t object

Referenced by nm_status_destroy().

nm_cond_init()

static void nm_cond_init ( nm_cond_status_t *  p_cond, nm_status_t  bitmask  )

inlinestatic

initialize a nm_cond_status_t object

Examples

nm_bench_req_monitor.c.

Definition at line 718 of file nm_core_interface.h.

Referenced by nm_status_init().

nm_cond_mask()

static void nm_cond_mask ( nm_cond_status_t *  p_cond, nm_status_t  bitmask  )

inlinestatic

Definition at line 742 of file nm_core_interface.h.

Referenced by nm_status_unset().

nm_cond_signal()

static void nm_cond_signal ( nm_cond_status_t *  p_cond, nm_status_t  bitmask  )

inlinestatic

add a bit and wake up threads waiting for it

Examples

nm_bench_req_monitor.c.

Definition at line 747 of file nm_core_interface.h.

Referenced by nm_status_signal().

nm_cond_test()

static nm_status_t nm_cond_test ( const nm_cond_status_t *  p_cond, nm_status_t  bitmask  )

inlinestatic

test whether the given bit is set in the status; unlocked, weak consistency

Definition at line 727 of file nm_core_interface.h.

Referenced by nm_cond_test_locked(), nm_cond_wait(), and nm_status_test().

nm_cond_test_locked()

static nm_status_t nm_cond_test_locked ( const nm_cond_status_t *  p_cond, nm_status_t  bitmask  )

inlinestatic

test whether the given bit is set in the status; locked, guaranteed consistency, slower

Definition at line 732 of file nm_core_interface.h.

References nm_cond_test().

Referenced by nm_status_test().

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nm_cond_wait()

static void nm_cond_wait ( nm_cond_status_t *  p_cond, nm_status_t  bitmask, nm_core_t  p_core  )

inlinestatic

wait for the given bit to be set in the status; do active polling while waiting

Examples

nm_bench_req_monitor.c.

Definition at line 752 of file nm_core_interface.h.

References nm_cond_test(), and nm_schedule().

Referenced by nm_cond_wait_all(), and nm_status_wait().

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nm_cond_wait_all()

static void nm_cond_wait_all ( void **  pp_conds, int  n, uintptr_t  offset, nm_status_t  bitmask, nm_core_t  p_core  )

inlinestatic

wait on multiple statuses at the same time

Definition at line 760 of file nm_core_interface.h.

References nm_cond_wait().

Referenced by nm_status_wait_all().

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