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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: function-implementation
uid: /score/tq/req/surrender
- role: function-implementation
uid: /score/tq/req/surrender-mrsp
- role: function-implementation
uid: /score/tq/req/surrender-priority-inherit
- role: requirement-refinement
uid: ../if/group
post-conditions:
- name: Status
states:
- name: Ok
test-code: |
T_eq_int( ctx->status, Status( ctx, STATUS_SUCCESSFUL ) );
text: |
The return status of the directive call shall be derived from
${../../status/if/successful:/name}.
- name: NotOwner
test-code: |
T_eq_int( ctx->status, Status( ctx, STATUS_NOT_OWNER ) );
text: |
The return status of the directive call shall be derived from
${../../status/if/not-owner:/name}.
test-epilogue: null
test-prologue: null
- name: Owner
states:
- name: None
test-code: |
T_null( ctx->owner_after );
text: |
The mutex shall have no owner.
- name: Caller
test-code: |
T_eq_ptr(
ctx->owner_after,
ctx->tq_ctx->base.runner_tcb
);
text: |
The owner of the mutex shall be the calling thread.
- name: Other
test-code: |
T_eq_ptr(
ctx->owner_after,
ctx->tq_ctx->base.worker_tcb[ TQ_HELPER_A ]
);
text: |
The owner of the mutex shall not be modified.
- name: First
test-code: |
T_eq_ptr(
ctx->owner_after,
ctx->tq_ctx->base.worker_tcb[ TQ_BLOCKER_A ]
);
text: |
The owner of the mutex shall be dequeued thread.
test-epilogue: null
test-prologue: null
- name: Surrender
states:
- name: Nop
test-code: |
T_eq_u32( ctx->counter, 0 );
text: |
The thread queue of the mutex shall not be surrendered to a thread.
- name: FIFO
test-code: |
T_eq_u32( ctx->counter, 1 );
${../../tq/req/surrender:/test-run}( &ctx->tq_ctx->base );
text: |
The thread queue of the mutex shall be surrendered in FIFO order.
- name: Priority
test-code: |
T_eq_u32( ctx->counter, 1 );
${../../tq/req/surrender:/test-run}( &ctx->tq_ctx->base );
text: |
The thread queue of the mutex shall be surrendered in priority order.
- name: PriorityInherit
test-code: |
T_eq_u32( ctx->counter, 1 );
${../../tq/req/surrender-priority-inherit:/test-run}( &ctx->tq_ctx->base );
text: |
The thread queue of the mutex shall be surrendered in priority order
with priority inheritance.
- name: MrsP
test-code: |
T_eq_u32( ctx->counter, 1 );
${../../tq/req/surrender-mrsp:/test-run}( &ctx->tq_ctx->base );
text: |
The thread queue of the mutex shall be surrendered in priority order
with MrsP.
test-epilogue: null
test-prologue: null
- name: Priority
states:
- name: Nop
test-code: |
T_eq_u32( ctx->priority_after, ctx->priority_before );
text: |
The ${/glossary/priority-current:/term} of the calling thread shall be
not be modified.
- name: Low
test-code: |
T_eq_u32( ctx->priority_after, ctx->priority_real );
text: |
The ${/glossary/priority-current:/term} of the calling thread shall be
lowered to reflect the removal of the priorities available through the
mutex.
test-epilogue: null
test-prologue: null
pre-conditions:
- name: Protocol
states:
- name: None
test-code: |
if ( ctx->tq_ctx->protocol != TQ_MTX_NO_PROTOCOL ) {
${.:skip}
}
text: |
Where the mutex does not use a locking protocol.
- name: Inherit
test-code: |
if ( ctx->tq_ctx->protocol != TQ_MTX_PRIORITY_INHERIT ) {
${.:skip}
}
text: |
Where the mutex uses the priority inheritance locking protocol.
- name: Ceiling
test-code: |
if ( ctx->tq_ctx->protocol != TQ_MTX_PRIORITY_CEILING ) {
${.:skip}
}
text: |
Where the mutex uses the priority ceiling locking protocol.
- name: MrsP
test-code: |
if ( ctx->tq_ctx->protocol != TQ_MTX_MRSP ) {
${.:skip}
}
text: |
Where the mutex uses the MrsP locking protocol.
test-epilogue: null
test-prologue: null
- name: Discipline
states:
- name: FIFO
test-code: |
if ( ctx->tq_ctx->base.discipline != TQ_FIFO ) {
${.:skip}
}
text: |
Where the thread queue of the mutex uses the FIFO discipline.
- name: Priority
test-code: |
if ( ctx->tq_ctx->base.discipline != TQ_PRIORITY ) {
${.:skip}
}
text: |
Where the thread queue of the mutex uses the priority discipline.
test-epilogue: null
test-prologue: null
- name: Recursive
states:
- name: Allowed
test-code: |
if ( ctx->tq_ctx->recursive != TQ_MTX_RECURSIVE_ALLOWED ) {
${.:skip}
}
text: |
Where a recursive seize of the mutex is allowed.
- name: NotAllowed
test-code: |
if ( ctx->tq_ctx->recursive == TQ_MTX_RECURSIVE_ALLOWED ) {
${.:skip}
}
text: |
Where a recursive seize of the mutex is not allowed.
test-epilogue: null
test-prologue: null
- name: OwnerCheck
states:
- name: 'Yes'
test-code: |
if ( ctx->tq_ctx->owner_check != TQ_MTX_CHECKS_OWNER ) {
${.:skip}
}
text: |
Where the surrender checks that the mutex owner is the calling thread.
- name: 'No'
test-code: |
if ( ctx->tq_ctx->owner_check != TQ_MTX_NO_OWNER_CHECK ) {
${.:skip}
}
text: |
Where the surrender does not check that the mutex owner is the calling
thread.
test-epilogue: null
test-prologue: null
- name: Owner
states:
- name: None
test-code: |
ctx->owner_caller = false;
ctx->owner_other = false;
text: |
While the mutex has no owner.
- name: Caller
test-code: |
ctx->owner_caller = true;
ctx->owner_other = false;
text: |
While the owner of the mutex is the calling thread.
- name: Other
test-code: |
ctx->owner_caller = false;
ctx->owner_other = true;
text: |
While the owner of the mutex is a thread other than the calling thread.
test-epilogue: null
test-prologue: null
- name: Nested
states:
- name: 'Yes'
test-code: |
ctx->nested = true;
text: |
While calling thread seized the mutex recursively.
- name: 'No'
test-code: |
ctx->nested = false;
text: |
While calling thread seized the mutex not recursively.
test-epilogue: null
test-prologue: null
- name: Blocked
states:
- name: 'Yes'
test-code: |
ctx->blocked = true;
text: |
While the mutex has threads blocked on the mutex.
- name: 'No'
test-code: |
ctx->blocked = false;
text: |
While no threads are blocked on the mutex.
test-epilogue: null
test-prologue: null
- name: Priority
states:
- name: High
test-code: |
ctx->priority_real = PRIO_ULTRA_HIGH;
text: |
While the ${/glossary/priority-current:/term} of the calling thread
without the priorities available through the mutex would be higher than
the highest priority of the priorities available through the mutex.
- name: Equal
test-code: |
ctx->priority_real = PRIO_VERY_HIGH;
text: |
While the ${/glossary/priority-current:/term} of the calling thread
without the priorities available through the mutex would be equal to the
highest priority of the priorities available through the mutex.
- name: Low
test-code: |
ctx->priority_real = PRIO_HIGH;
text: |
While the ${/glossary/priority-current:/term} of the calling thread
without the priorities available through the mutex would be lower than
the highest priority of the priorities available through the mutex.
test-epilogue: null
test-prologue: null
rationale: null
references: []
requirement-type: functional
skip-reasons:
BlockedNeedsOwner: |
Blocked threads only exist, if the mutex has an owner.
NestedNeedsRecursive: |
Where the mutex does not allow a recursive seize, the mutex cannot be
recursively seized.
MustBeOwner: |
Where the mutex does not check that the mutex owner is the calling thread,
the mutex owner must be the calling thread, otherwise the system behaviour
is undefined.
PriorityDisciplineByProtocol: |
The locking protocol require a priority discipline.
test-action: |
if ( ctx->tq_ctx->base.enqueue_variant == TQ_ENQUEUE_STICKY ) {
ActionSticky( ctx );
} else {
Action( ctx );
}
test-brief: null
test-cleanup: null
test-context:
- brief: |
If this member is true, then the calling thread shall be the owner of the
mutex.
description: null
member: |
bool owner_caller
- brief: |
If this member is true, then a thread other than the calling thread shall
be the owner of the mutex.
description: null
member: |
bool owner_other
- brief: |
If this member is true, then the calling thread shall have seized the mutex
recursively.
description: null
member: |
bool nested
- brief: |
If this member is true, then there shall be a thread blocked waiting for
the mutex.
description: null
member: |
bool blocked
- brief: |
This member contains the real priority of the calling thread.
description: null
member: |
rtems_task_priority priority_real
- brief: |
This member contains the current priority of the calling thread before the
directive call.
description: null
member: |
rtems_task_priority priority_before
- brief: |
This member contains the return status of the directive call.
description: null
member: |
Status_Control status
- brief: |
This member contains the owner of the mutex after the directive call.
description: null
member: |
const rtems_tcb *owner_after
- brief: |
This member contains the current priority of the calling thread after the
directive call.
description: null
member: |
rtems_task_priority priority_after
- brief: |
This member contains the counter snapshot after the directive call.
description: null
member: |
uint32_t counter
test-context-support: null
test-description: null
test-header:
code: null
freestanding: false
includes: []
local-includes:
- tx-thread-queue.h
run-params:
- description: |
is the thread queue context.
dir: inout
name: tq_ctx
specifier: TQMtxContext *${.:name}
target: testsuites/validation/tr-mtx-surrender.h
test-includes: []
test-local-includes:
- tr-mtx-surrender.h
- tr-tq-surrender.h
- tr-tq-surrender-mrsp.h
- tr-tq-surrender-priority-inherit.h
test-prepare: |
ctx->owner_caller = false;
ctx->owner_other = false;
ctx->nested = false;
ctx->blocked = false;
if ( ctx->tq_ctx->base.enqueue_variant == TQ_ENQUEUE_STICKY ) {
ctx->priority_real = PRIO_ULTRA_HIGH;
} else {
ctx->priority_real = PRIO_NORMAL;
}
test-setup: null
test-stop: null
test-support: |
typedef ${.:/test-context-type} Context;
static Status_Control Status( const Context *ctx, Status_Control status )
{
return TQConvertStatus( &ctx->tq_ctx->base, status );
}
static void Action( Context *ctx )
{
Status_Control status;
TQSetScheduler(
&ctx->tq_ctx->base,
TQ_HELPER_A,
SCHEDULER_A_ID,
PRIO_VERY_HIGH
);
TQSetScheduler(
&ctx->tq_ctx->base,
TQ_BLOCKER_A,
SCHEDULER_A_ID,
PRIO_VERY_HIGH
);
if ( ctx->owner_caller ) {
status = TQEnqueue( &ctx->tq_ctx->base, TQ_NO_WAIT );
T_eq_int( status, Status( ctx, STATUS_SUCCESSFUL ) );
} else if ( ctx->owner_other ) {
TQSend( &ctx->tq_ctx->base, TQ_HELPER_A, TQ_EVENT_ENQUEUE );
}
if ( ctx->nested ) {
status = TQEnqueue( &ctx->tq_ctx->base, TQ_NO_WAIT );
T_eq_int( status, Status( ctx, STATUS_SUCCESSFUL ) );
}
if ( ctx->blocked ) {
TQSend( &ctx->tq_ctx->base, TQ_BLOCKER_A, TQ_EVENT_ENQUEUE );
Yield();
}
TQResetCounter( &ctx->tq_ctx->base );
SetSelfPriority( ctx->priority_real );
ctx->priority_before = GetSelfPriority();
TQSchedulerRecordStart( &ctx->tq_ctx->base );
ctx->status = TQSurrender( &ctx->tq_ctx->base );
TQSchedulerRecordStop( &ctx->tq_ctx->base );
ctx->owner_after = TQGetOwner( &ctx->tq_ctx->base );
ctx->priority_after = GetSelfPriority();
SetSelfPriority( PRIO_NORMAL );
Yield();
ctx->counter = TQGetCounter( &ctx->tq_ctx->base );
if ( ctx->nested ) {
status = TQSurrender( &ctx->tq_ctx->base );
T_eq_int( status, Status( ctx, STATUS_SUCCESSFUL ) );
}
if ( ctx->owner_other ) {
TQSend( &ctx->tq_ctx->base, TQ_HELPER_A, TQ_EVENT_SURRENDER );
}
if ( ctx->blocked ) {
TQSend( &ctx->tq_ctx->base, TQ_BLOCKER_A, TQ_EVENT_SURRENDER );
}
}
static void ActionSticky( Context *ctx )
{
Status_Control status;
TQSetScheduler(
&ctx->tq_ctx->base,
TQ_HELPER_A,
SCHEDULER_A_ID,
PRIO_VERY_HIGH
);
TQSetScheduler(
&ctx->tq_ctx->base,
TQ_BLOCKER_A,
SCHEDULER_B_ID,
PRIO_VERY_HIGH
);
if ( ctx->owner_caller ) {
status = TQEnqueue( &ctx->tq_ctx->base, TQ_NO_WAIT );
T_eq_int( status, Status( ctx, STATUS_SUCCESSFUL ) );
} else if ( ctx->owner_other ) {
SetSelfScheduler( SCHEDULER_B_ID, PRIO_ULTRA_HIGH );
TQSendAndSynchronizeRunner(
&ctx->tq_ctx->base,
TQ_HELPER_A,
TQ_EVENT_ENQUEUE
);
SetSelfScheduler( SCHEDULER_A_ID, PRIO_ULTRA_HIGH );
}
if ( ctx->nested ) {
status = TQEnqueue( &ctx->tq_ctx->base, TQ_NO_WAIT );
T_eq_int( status, Status( ctx, STATUS_SUCCESSFUL ) );
}
if ( ctx->blocked ) {
TQSendAndWaitForIntendToBlock(
&ctx->tq_ctx->base,
TQ_BLOCKER_A,
TQ_EVENT_ENQUEUE
);
}
TQResetCounter( &ctx->tq_ctx->base );
SetSelfPriority( ctx->priority_real );
ctx->priority_before = GetSelfPriority();
TQSchedulerRecordStart( &ctx->tq_ctx->base );
ctx->status = TQSurrender( &ctx->tq_ctx->base );
TQSchedulerRecordStop( &ctx->tq_ctx->base );
ctx->owner_after = TQGetOwner( &ctx->tq_ctx->base );
ctx->priority_after = GetSelfPriority();
if ( ctx->status == Status( ctx, STATUS_SUCCESSFUL ) ) {
TQWaitForExecutionStop( &ctx->tq_ctx->base, TQ_BLOCKER_A );
}
ctx->counter = TQGetCounter( &ctx->tq_ctx->base );
if ( ctx->nested ) {
status = TQSurrender( &ctx->tq_ctx->base );
T_eq_int( status, Status( ctx, STATUS_SUCCESSFUL ) );
}
if ( ctx->owner_other ) {
SetSelfScheduler( SCHEDULER_B_ID, PRIO_ULTRA_HIGH );
TQSendAndSynchronizeRunner(
&ctx->tq_ctx->base,
TQ_HELPER_A,
TQ_EVENT_SURRENDER
);
SetSelfScheduler( SCHEDULER_A_ID, PRIO_NORMAL );
} else {
SetSelfPriority( PRIO_NORMAL );
}
if ( ctx->blocked ) {
TQSendAndSynchronizeRunner(
&ctx->tq_ctx->base,
TQ_BLOCKER_A,
TQ_EVENT_SURRENDER
);
}
}
test-target: testsuites/validation/tr-mtx-surrender.c
test-teardown: null
text: |
When the calling thread surrenders the mutex.
transition-map:
- enabled-by: true
post-conditions:
Status: Ok
Owner:
- if:
pre-conditions:
Nested: 'Yes'
then: Caller
- if:
pre-conditions:
Blocked: 'Yes'
then: First
- else: None
Surrender:
- if:
post-conditions:
Owner: First
then-specified-by: Discipline
- else: Nop
Priority: Nop
pre-conditions:
Protocol:
- None
Discipline: all
Recursive: all
OwnerCheck: all
Owner:
- Caller
Nested: all
Blocked: all
Priority: N/A
- enabled-by: true
post-conditions:
Status: Ok
Owner:
- if:
pre-conditions:
Nested: 'Yes'
then: Caller
- if:
pre-conditions:
Blocked: 'Yes'
then: First
- else: None
Surrender:
- if:
and:
- post-conditions:
Owner: First
- pre-conditions:
Protocol: MrsP
then: MrsP
- if:
post-conditions:
Owner: First
then: Priority
- else: Nop
Priority:
- if:
pre-conditions:
Nested: 'No'
Priority: Low
then: Low
- else: Nop
pre-conditions:
Protocol:
- Ceiling
- MrsP
Discipline: all
Recursive: all
OwnerCheck: all
Owner:
- Caller
Nested: all
Blocked: all
Priority: all
- enabled-by: true
post-conditions:
Status: Ok
Owner:
- if:
pre-conditions:
Nested: 'Yes'
then: Caller
- else: First
Surrender:
- if:
post-conditions:
Owner: First
then: PriorityInherit
- else: Nop
Priority:
- if:
pre-conditions:
Nested: 'No'
Priority: Low
then: Low
- else: Nop
pre-conditions:
Protocol:
- Inherit
Discipline: all
Recursive: all
OwnerCheck: all
Owner:
- Caller
Nested: all
Blocked:
- 'Yes'
Priority: all
- enabled-by: true
post-conditions:
Status: Ok
Owner:
- if:
pre-conditions:
Nested: 'Yes'
then: Caller
- if:
pre-conditions:
Blocked: 'Yes'
then: First
- else: None
Surrender:
- if:
post-conditions:
Owner: First
then: PriorityInherit
- else: Nop
Priority: Nop
pre-conditions:
Protocol:
- Inherit
Discipline: all
Recursive: all
OwnerCheck: all
Owner:
- Caller
Nested: all
Blocked:
- 'No'
Priority: N/A
- enabled-by: true
post-conditions:
Status: NotOwner
Owner:
- specified-by: Owner
Surrender: Nop
Priority: Nop
pre-conditions:
Protocol: all
Discipline: all
Recursive: all
OwnerCheck:
- 'Yes'
Owner: all
Owner:
- None
- Other
Nested: N/A
Blocked: all
Priority: N/A
- enabled-by: true
post-conditions: BlockedNeedsOwner
pre-conditions:
Protocol: all
Discipline: all
Recursive: all
OwnerCheck: all
Owner:
- None
Nested: N/A
Blocked:
- 'Yes'
Priority: N/A
- enabled-by: true
post-conditions: MustBeOwner
pre-conditions:
Protocol: all
Discipline: all
Recursive: all
OwnerCheck:
- 'No'
Owner:
- None
- Other
Nested: all
Blocked: all
Priority: all
- enabled-by: true
post-conditions: NestedNeedsRecursive
pre-conditions:
Protocol: all
Discipline: all
Recursive:
- NotAllowed
OwnerCheck: all
Owner: all
Nested:
- 'Yes'
Blocked: all
Priority: all
- enabled-by: true
post-conditions: PriorityDisciplineByProtocol
pre-conditions:
Protocol:
- Inherit
- Ceiling
- MrsP
Discipline:
- FIFO
Recursive: all
OwnerCheck: all
Owner: all
Nested: all
Blocked: all
Priority: all
type: requirement
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