diff options
Diffstat (limited to 'testsuites/sptests/sp44/init.c')
-rw-r--r-- | testsuites/sptests/sp44/init.c | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/testsuites/sptests/sp44/init.c b/testsuites/sptests/sp44/init.c new file mode 100644 index 0000000000..4e39de1286 --- /dev/null +++ b/testsuites/sptests/sp44/init.c @@ -0,0 +1,141 @@ +/* + * Original version submitted as part of PR1212 + * + * This example shows a possible blocking of timeslicing if task mode is + * changed to timeslicing in the middle of its executing. + * + * The expected output is: + * + * Task #0's turn. Now setting turn to 1 + * Task #1's turn. Now setting turn to 0 + * Task #0's turn. Now setting turn to 1 + * Task #1's turn. Now setting turn to 0 + * Task #0's turn. Now setting turn to 1 + * Task #1's turn. Now setting turn to 0 + * Task #0's turn. Now setting turn to 1 + * ... + * + * The actural output is: + * + * Task #0's turn. Now setting turn to 1 + * + * Task #1 can not be dispatched also both tasks have timeslice enabled. + * + * Setting TASK_A/B_INITMODE to RTEMS_DEFAULT_MODES | RTEMS_TIMESLICE + * will produce the expected output. + * + * $Id$ + */ + +#include <tmacros.h> +#include <rtems.h> +#include <stdio.h> +#include <stdlib.h> + +/*** Task priorities ***/ +#define TASK_A_PRIORITY 10 +#define TASK_B_PRIORITY 10 + +/*** Task names ***/ +#define TASK_A_NAME 1 +#define TASK_B_NAME 2 + +/*** Task atributes ***/ +#define TASK_A_INITMODE RTEMS_DEFAULT_MODES +#define TASK_B_INITMODE RTEMS_DEFAULT_MODES + +/*** Task generic parameters ***/ +#define TASK_A_STACKSIZE RTEMS_MINIMUM_STACK_SIZE +#define TASK_A_MODEATTR RTEMS_DEFAULT_ATTRIBUTES +#define TASK_B_STACKSIZE RTEMS_MINIMUM_STACK_SIZE +#define TASK_B_MODEATTR RTEMS_DEFAULT_ATTRIBUTES + +volatile uint32_t turn; +rtems_id TaskA_id, TaskB_id; + +#define TEST_FAILED(_status, _msg) \ + do { \ + printf("Test failed, status code: %d, msg: %s\n", _status, _msg); \ + exit(1); \ + } while(0) + +/* TASK A/B */ +rtems_task TaskAB_entry(rtems_task_argument me) +{ + static rtems_mode previous_mode_set; + rtems_status_code status; + uint32_t iterations = 0; + + status = rtems_task_mode(RTEMS_PREEMPT | RTEMS_TIMESLICE, + RTEMS_PREEMPT_MASK | RTEMS_TIMESLICE_MASK, + &previous_mode_set); + if (status != RTEMS_SUCCESSFUL) + TEST_FAILED(status, "Unable to change task mode."); + + while(1) { + if (turn == me) { + printf("Task #%d's turn. Now setting turn to %d\n", me, 1 - me); + turn = 1 - me; + + if ( ++iterations == 10 ) { + puts( "*** END OF SP44 TEST ***" ); + exit( 0 ); + } + } + } +} + +rtems_task Init(rtems_task_argument ignored) +{ + static rtems_status_code status; + + puts( "\n\n*** SP44 TEST ***" ); + + /* Create Task A */ + status = rtems_task_create(TASK_A_NAME, TASK_A_PRIORITY, TASK_A_STACKSIZE, + TASK_A_INITMODE, TASK_A_MODEATTR, &TaskA_id); + + if (status != RTEMS_SUCCESSFUL) + TEST_FAILED(status,"rtems_task_create failed.\n"); + + /* Start Task A */ + status = rtems_task_start(TaskA_id, TaskAB_entry, 0); + if (status != RTEMS_SUCCESSFUL) + TEST_FAILED(status,"rtems_task_start failed.\n"); + + /* Create Task B */ + status = rtems_task_create(TASK_B_NAME, TASK_B_PRIORITY, TASK_B_STACKSIZE, + TASK_B_INITMODE, TASK_B_MODEATTR, &TaskB_id); + + if (status != RTEMS_SUCCESSFUL) + TEST_FAILED(status,"rtems_task_create failed.\n"); + + /* Start Task B */ + status = rtems_task_start(TaskB_id, TaskAB_entry, 1); + if (status != RTEMS_SUCCESSFUL) + TEST_FAILED(status,"rtems_task_start failed.\n"); + + /* Suspend itself */ + status = rtems_task_suspend(RTEMS_SELF); + if (status != RTEMS_SUCCESSFUL) + TEST_FAILED(status,"rtems_task_suspend failed.\n"); + + /* This task is not suposed to be executed anymore */ + printf("\nNOT SUPOSED TO RETURN HERE...\n"); + exit(1); +} + +/* configuration information */ + +#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER +#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER + +#define CONFIGURE_MICROSECONDS_PER_TICK 1000 +#define CONFIGURE_TICKS_PER_TIMESLICE 10 +#define CONFIGURE_MAXIMUM_TASKS 3 + +#define CONFIGURE_RTEMS_INIT_TASKS_TABLE + +#define CONFIGURE_INIT + +#include <rtems/confdefs.h> |