diff options
Diffstat (limited to 'FreeRTOS-Plus/Test/CBMC/proofs/CBMCStubLibrary/tasksStubs.c')
-rw-r--r-- | FreeRTOS-Plus/Test/CBMC/proofs/CBMCStubLibrary/tasksStubs.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/FreeRTOS-Plus/Test/CBMC/proofs/CBMCStubLibrary/tasksStubs.c b/FreeRTOS-Plus/Test/CBMC/proofs/CBMCStubLibrary/tasksStubs.c new file mode 100644 index 000000000..3fe245f80 --- /dev/null +++ b/FreeRTOS-Plus/Test/CBMC/proofs/CBMCStubLibrary/tasksStubs.c @@ -0,0 +1,47 @@ +#include "FreeRTOS.h" +#include "task.h" +#include "tasksStubs.h" + +#ifndef TASK_STUB_COUNTER + #define TASK_STUB_COUNTER 0; +#endif + +/* 5 is a magic number, but we need some number here as a default value. + This value is used to bound any loop depending on xTaskCheckForTimeOut + as a loop bound. It should be overwritten in the Makefile.json adapting + to the performance requirements of the harness. */ +#ifndef TASK_STUB_COUNTER_LIMIT + #define TASK_STUB_COUNTER_LIMIT 5; +#endif + + +static BaseType_t xCounter = TASK_STUB_COUNTER; +static BaseType_t xCounterLimit = TASK_STUB_COUNTER_LIMIT; + +BaseType_t xTaskGetSchedulerState( void ) +{ + return xState; +} + +/* This function is another method apart from overwritting the defines to init the max + loop bound. */ +void vInitTaskCheckForTimeOut(BaseType_t maxCounter, BaseType_t maxCounter_limit) +{ + xCounter = maxCounter; + xCounterLimit = maxCounter_limit; +} + +/* This is mostly called in a loop. For CBMC, we have to bound the loop + to a max limits of calls. Therefore this Stub models a nondet timeout in + max TASK_STUB_COUNTER_LIMIT iterations.*/ +BaseType_t xTaskCheckForTimeOut( TimeOut_t * const pxTimeOut, TickType_t * const pxTicksToWait ) { + ++xCounter; + if(xCounter == xCounterLimit) + { + return pdTRUE; + } + else + { + return nondet_basetype(); + } +} |