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|
SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
copyrights:
- Copyright (C) 2021 embedded brains GmbH & Co. KG
enabled-by: true
functional-type: action
links:
- role: interface-function
uid: ../if/futex-wake
- role: function-implementation
uid: /score/tq/req/flush-fifo
- role: requirement-refinement
uid: futex
post-conditions:
- name: Result
states:
- name: Count
test-code: |
/* This result is checked by Flush() */
text: |
The return status of ${../if/futex-wake:/name} shall be the count of threads
extracted from the thread queue of the futex object.
test-epilogue: null
test-prologue: null
- name: Flush
states:
- name: 'No'
test-code: |
/* This state is checked by Enqueue() */
text: |
No thread shall be extracted from the thread queue of the futex object.
- name: 'Yes'
test-code: |
${/score/tq/req/flush-fifo:/test-run}( &ctx->tq_ctx, true );
text: |
The first count threads specified by the ``count`` parameter shall be
extracted from the thread queue of the futex object in
${/glossary/fifo:/term} order.
test-epilogue: null
test-prologue: null
pre-conditions:
- name: Count
states:
- name: NegativeOrZero
test-code: |
/* This state is prepared by Enqueue() */
text: |
While the ``count`` parameter is less or equal to than zero.
- name: Positive
test-code: |
/* This state is prepared by Flush() */
text: |
While the ``count`` parameter is greater than zero.
test-epilogue: null
test-prologue: null
rationale: null
references: []
requirement-type: functional
skip-reasons: {}
test-action: |
/* The action is performed in the ``Flush`` post-condition ``All`` state. */
test-brief: null
test-cleanup:
_Futex_Destroy( &ctx->futex );
test-context:
- brief: |
This member contains the thread queue test context.
description: null
member: |
TQContext tq_ctx;
- brief: |
This member provides the futex object.
description: null
member: |
struct _Futex_Control futex
- brief: |
This member provides the futex state.
description: null
member: |
int state
test-context-support: null
test-description: null
test-header: null
test-includes:
- sys/lock.h
- limits.h
- rtems.h
test-local-includes:
- tx-thread-queue.h
- tr-tq-flush-fifo.h
test-prepare: |
_Futex_Initialize( &ctx->futex );
test-setup:
brief: null
code: |
memset( ctx, 0, sizeof( *ctx ) );
ctx->tq_ctx.discipline = TQ_FIFO;
ctx->tq_ctx.wait = TQ_WAIT_FOREVER;
ctx->tq_ctx.enqueue_prepare = TQDoNothing;
ctx->tq_ctx.enqueue = Enqueue;
ctx->tq_ctx.enqueue_done = TQDoNothing;
ctx->tq_ctx.flush = Flush;
ctx->tq_ctx.surrender = TQDoNothingSuccessfully;
ctx->tq_ctx.convert_status = TQConvertStatusPOSIX;
TQInitialize( &ctx->tq_ctx );
description: null
test-stop: null
test-support: |
typedef ${.:/test-context-type} Context;
static Context *ToContext( TQContext *tq_ctx )
{
return RTEMS_CONTAINER_OF( tq_ctx, Context, tq_ctx );
}
static Status_Control Enqueue( TQContext *tq_ctx, TQWait wait )
{
Context *ctx;
int count;
int eno;
ctx = ToContext( tq_ctx );
count = _Futex_Wake( &ctx->futex, -1 );
T_eq_int( count, 0 );
count = _Futex_Wake( &ctx->futex, 0 );
T_eq_int( count, 0 );
eno = _Futex_Wait( &ctx->futex, &ctx->state, 0 );
T_eq_int( eno, 0 );
return STATUS_BUILD( 0, eno );
}
static uint32_t Flush( TQContext *tq_ctx, uint32_t thread_count, bool all )
{
Context *ctx;
int count;
(void) thread_count;
ctx = ToContext( tq_ctx );
if ( all ) {
count = _Futex_Wake( &ctx->futex, INT_MAX );
} else {
count = _Futex_Wake( &ctx->futex, 1 );
}
return (uint32_t) count;
}
test-target: testsuites/validation/tc-futex-wake.c
test-teardown:
brief: null
code: |
TQDestroy( &ctx->tq_ctx );
description: null
text: ${.:text-template}
transition-map:
- enabled-by: true
post-conditions:
Result: Count
Flush: 'No'
pre-conditions:
Count:
- NegativeOrZero
- enabled-by: true
post-conditions:
Result: Count
Flush: 'Yes'
pre-conditions:
Count:
- Positive
type: requirement
|
