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Exposed running state macros to VF.

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Tobias Reinhard 2022-12-02 11:54:12 -05:00
parent 2c6d35943f
commit eb1cfa53d3
1 changed files with 46 additions and 0 deletions
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verification/verifast/proof/verifast_task_running_states.h Normal file
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#ifndef VERIFAST_TASK_RUNNING_STATES_H
#define VERIFAST_TASK_RUNNING_STATES_H
/* The source file `tasks.c` defines macros to denote the running states of
* tasks:
* - `taskTASK_NOT_RUNNING` == -1
* - `taskTASK_YIELDING` == -2
* - state >= 0 => task is running on core with ID `state`
* We cannot import theses definitions into our proof headers. Hence, we define
* our own macros and proof in `tasks.c` that they match.
*/
#include "portmacro.h" // defines `BaseType_t`
/* Indicates that the task is not actively running on any core. */
//VF_macro #define taskTASK_NOT_RUNNING ( BaseType_t ) ( -1 )
/* Indicates that the task is actively running but scheduled to yield. */
//VF_macro #define taskTASK_YIELDING ( BaseType_t ) ( -2 )
/* Verify that the preprocessor and our VeriFast proofs evaluate
* `taskTASK_NOT_RUNNING` to the same values.
*/
void validate_taskTASK_NOT_RUNNING_value()
//@ requires true;
//@ ensures true;
{
//@ TaskRunning_t gVal = taskTASK_NOT_RUNNING;
TaskRunning_t val = taskTASK_NOT_RUNNING;
//@ assert( gVal == val );
}
/* Verify that the preprocessor and our VeriFast proofs evaluate
* `taskTASK_YIELDING` to the same values.
*/
void validate_taskTASK_YIELDING_value()
//@ requires true;
//@ ensures true;
{
//@ TaskRunning_t gVal = taskTASK_YIELDING;
TaskRunning_t val = taskTASK_YIELDING;
//@ assert( gVal == val );
}
#endif /* VERIFAST_TASK_RUNNING_STATES_H */