/* This test is designed to test the change priority service call. */ #include #include "tx_api.h" #include "tx_thread.h" static unsigned long thread_0_counter = 0; static TX_THREAD thread_0; static unsigned long thread_1_counter = 0; static TX_THREAD thread_1; static unsigned long thread_2_counter = 0; static TX_THREAD thread_2; static TX_THREAD thread_3; static unsigned long thread_3_counter = 0; static TX_THREAD thread_4; static unsigned long thread_4_counter = 0; /* Define the ISR dispatch. */ extern VOID (*test_isr_dispatch)(void); /* Define thread prototypes. */ static void thread_0_entry(ULONG thread_input); static void thread_1_entry(ULONG thread_input); static void thread_2_entry(ULONG thread_input); static void thread_3_entry(ULONG thread_input); static void thread_4_entry(ULONG thread_input); extern unsigned long _tx_thread_priority_map; /* Prototype for test control return. */ void test_control_return(UINT status); /* Define the ISR dispatch routine. */ static void test_isr(void) { UINT saved_preempt_disable; #ifndef TX_NOT_INTERRUPTABLE /* Determine if we have the interrupt condition we are looking for. */ if ((thread_3.tx_thread_priority == 6) && (thread_3.tx_thread_state == TX_READY) && (_tx_thread_priority_list[6] != &thread_3) && (thread_3_counter > 100)) { /* Save the preempt disable flag. */ saved_preempt_disable = _tx_thread_preempt_disable; /* Clear the preempt disable flag to ensure the API works correctly. */ _tx_thread_preempt_disable = 0; /* Suspend the thread to generate the condition. */ tx_thread_suspend(&thread_3); /* Restore the preempt disable flag. */ _tx_thread_preempt_disable = saved_preempt_disable; /* Done trying to generate this test condition. */ test_isr_dispatch = TX_NULL; } #else /* Can't get the interrupt inside the code wit TX_NOT_INTERRUPTABLE defined, so simply stop after thread_3_counter > 100. */ if (thread_3_counter > 100) { /* Done trying to generate this test condition. */ test_isr_dispatch = TX_NULL; } #endif } /* Define what the initial system looks like. */ #ifdef CTEST void test_application_define(void *first_unused_memory) #else void threadx_thread_priority_change_application_define(void *first_unused_memory) #endif { UINT status; CHAR *pointer; /* Put first available memory address into a character pointer. */ pointer = (CHAR *) first_unused_memory; /* Put system definition stuff in here, e.g. thread creates and other assorted create information. */ status = tx_thread_create(&thread_0, "thread 0", thread_0_entry, 1, pointer, TEST_STACK_SIZE_PRINTF, 16, 16, TX_NO_TIME_SLICE, TX_AUTO_START); pointer = pointer + TEST_STACK_SIZE_PRINTF; /* Check for status. */ if (status != TX_SUCCESS) { printf("Running Thread Priority Change Test................................. ERROR #1\n"); test_control_return(1); } status = tx_thread_create(&thread_1, "thread 1", thread_1_entry, 1, pointer, TEST_STACK_SIZE_PRINTF, 22, 22, TX_NO_TIME_SLICE, TX_AUTO_START); pointer = pointer + TEST_STACK_SIZE_PRINTF; /* Check for status. */ if (status != TX_SUCCESS) { printf("Running Thread Priority Change Test................................. ERROR #2\n"); test_control_return(1); } status = tx_thread_create(&thread_2, "thread 2", thread_2_entry, 2, pointer, TEST_STACK_SIZE_PRINTF, 30, 1, TX_NO_TIME_SLICE, TX_AUTO_START); pointer = pointer + TEST_STACK_SIZE_PRINTF; status += tx_thread_create(&thread_3, "thread 3", thread_3_entry, 3, pointer, TEST_STACK_SIZE_PRINTF, 5, 5, TX_NO_TIME_SLICE, TX_DONT_START); pointer = pointer + TEST_STACK_SIZE_PRINTF; status += tx_thread_create(&thread_4, "thread 4", thread_4_entry, 4, pointer, TEST_STACK_SIZE_PRINTF, 6, 6, TX_NO_TIME_SLICE, TX_DONT_START); pointer = pointer + TEST_STACK_SIZE_PRINTF; /* Check for status. */ if (status != TX_SUCCESS) { printf("Running Thread Priority Change Test................................. ERROR #3\n"); test_control_return(1); } } /* Define the test threads. */ static void thread_0_entry(ULONG thread_input) { //ULONG current_time; UINT old_priority; UINT status; /* Inform user. */ printf("Running Thread Priority Change Test................................. "); /* Resume thread 3. */ tx_thread_resume(&thread_3); /* Increment thread 0 counter. */ thread_0_counter++; /* Change priority to 22, to match that of the next highest priority ready thread. This is to test the update of the priority list when a thread is moved to a priority with already ready threads. */ status = tx_thread_priority_change(&thread_0, 22, &old_priority); /* Check status, return priority, and run count of other thread. */ if ((status != TX_SUCCESS) || (old_priority != 16) || (thread_1_counter != 0)) { /* Thread error. */ printf("ERROR #4\n"); test_control_return(1); } /* Restore original priority. */ tx_thread_priority_change(&thread_0, old_priority, &old_priority); /* See if we can change priority of this thread. */ status = tx_thread_priority_change(&thread_0, 7, &old_priority); /* Check status, return priority, and run count of other thread. */ if ((status != TX_SUCCESS) || (old_priority != 16) || (thread_1_counter != 0)) { /* Thread error. */ printf("ERROR #4\n"); test_control_return(1); } /* See if we can change priority of another ready thread. */ status = tx_thread_priority_change(&thread_1, 21, &old_priority); /* Check status, return priority, and run count of other thread. */ if ((status != TX_SUCCESS) || (old_priority != 22) || (thread_1_counter != 0)) { /* Thread error. */ printf("ERROR #5\n"); test_control_return(1); } /* See if we can cause preemption by lowering this thread's priority. */ status = tx_thread_priority_change(&thread_0, 22, &old_priority); /* Check status, return priority, and run count of other thread. */ if ((status != TX_SUCCESS) || (old_priority != 7) || (thread_1_counter != 1)) { /* Thread error. */ printf("ERROR #6\n"); test_control_return(1); } /* Thread 1 should have run already... Raise this threads priority back up. */ status = tx_thread_priority_change(&thread_0, 8, &old_priority); /* Check status, return priority, and run count of other thread. */ if ((status != TX_SUCCESS) || (old_priority != 22) || (thread_1_counter != 1)) { /* Thread error. */ printf("ERROR #7\n"); test_control_return(1); } /* See if we can change the priority of a suspended thread. */ status = tx_thread_priority_change(&thread_1, 19, &old_priority); /* Check status, return priority, and run count of other thread. */ if ((status != TX_SUCCESS) || (old_priority != 21) || (thread_1_counter != 1)) { /* Thread error. */ printf("ERROR #8\n"); test_control_return(1); } /* Resume the suspended thread so it is in a ready condition. */ status = tx_thread_resume(&thread_1); /* Check status, return priority, and run count of other thread. */ if ((status != TX_SUCCESS) || (thread_1_counter != 1)) { /* Thread error. */ printf("ERROR #9\n"); test_control_return(1); } /* Should not have run yet. Raise its priority to 8 still should not run yet! */ status = tx_thread_priority_change(&thread_1, 8, &old_priority); /* Check status, return priority, and run count of other thread. */ if ((status != TX_SUCCESS) || (old_priority != 19) || (thread_1_counter != 1)) { /* Thread error. */ printf("ERROR #10\n"); test_control_return(1); } /* Raise its priority to 7, now it should run. */ status = tx_thread_priority_change(&thread_1, 7, &old_priority); /* Check status, return priority, and run count of other thread. */ if ((status != TX_SUCCESS) || (old_priority != 8) || (thread_1_counter != 2) || (thread_2_counter != 0)) { /* Thread error. */ printf("ERROR #11\n"); test_control_return(1); } /* Now thread 1 should be suspended. Let's change thread 0's priority and make sure thread 2 doesn't run yet! */ status = tx_thread_priority_change(&thread_0, 7, &old_priority); /* Check status, return priority, and run count of other thread. */ if ((status != TX_SUCCESS) || (old_priority != 8) || (thread_1_counter != 2) || (thread_2_counter != 0)) { /* Thread error. */ printf("ERROR #12\n"); test_control_return(1); } else { /* Successful test. */ printf("SUCCESS!\n"); test_control_return(0); } } static void thread_1_entry(ULONG thread_input) { while(1) { /* Increment the thread counter. */ thread_1_counter++; /* Suspend self and wait for upper thread to resume. */ tx_thread_suspend(&thread_1); } } static void thread_2_entry(ULONG thread_input) { while(1) { /* This thread should never run! */ /* Increment the thread counter. */ thread_2_counter++; /* Self suspend. */ tx_thread_suspend(&thread_2); } } static void thread_3_entry(ULONG thread_input) { UINT old_priority; UINT loop; /* Resume threads 4. */ tx_thread_resume(&thread_4); /* Setup the ISR. */ test_isr_dispatch = test_isr; do { loop = rand() % 100; while (loop--) { thread_3_counter++; } /* Raise priority of thread 3 for code coverage. */ tx_thread_priority_change(&thread_3, 6, &old_priority); tx_thread_priority_change(&thread_3, 5, &old_priority); /* Check to see if thread 4 has run... it should not have executed yet. If it does, set the thread_1_counter to indicate an error! */ if (thread_4_counter) thread_1_counter++; } while (test_isr_dispatch); } static void thread_4_entry(ULONG thread_input) { thread_4_counter++; }