thread9.c
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#include <os.h>
#include <rmon.h>
#include "corefunc.h"
/*
* thread9
*
* Tests for:
* osSetThreadPri (on stopped threads)
*
* Assumed working:
* osSetIntMask
* osGetIntMask
* osCreateThread
* osStartThread
* osStopThread
*
* Description:
* Check that setting the priority of a stopped thread correctly affects
* its relative position in the run queue when restarted.
*/
#define NUM_LOG 10
#define NUM_SLAVES 2
static void slave(void *);
static int logExecution(int);
static OSMesgQueue slaveMesgQueue;
static OSMesg slaveMesgBuf[NUM_SLAVES];
static OSThread slave1Thread;
static char slave1Stack[STACKSIZE];
static OSThread slave2Thread;
static char slave2Stack[STACKSIZE];
static int logTab[NUM_LOG];
static int *logPtr = logTab;
static int expLogTab[NUM_LOG] = { 0, 0, 2, 1, 0, 0, 0, 1, 2, 0 };
int
thread9(void)
{
OSIntMask savedMask, currentMask;
OSMesg actualMesg, expectedMesg;
int i, j;
int addFailures, numFailures = 0;
savedMask = osSetIntMask(OS_IM_ALL);
osCreateMesgQueue(&slaveMesgQueue, slaveMesgBuf, NUM_SLAVES);
osSetThreadPri(NULL, 40);
osCreateThread(&slave1Thread, 101, slave, (void *)1, slave1Stack+STACKSIZE,
60);
osCreateThread(&slave2Thread, 102, slave, (void *)2, slave2Stack+STACKSIZE,
50);
osSetThreadPri(&slave1Thread, 20);
osSetThreadPri(&slave2Thread, 30);
logExecution(0); /* 0 */
osStartThread(&slave1Thread);
osStartThread(&slave2Thread);
logExecution(0); /* 1 */
/*
* Lower priority to let slaves run.
*/
osSetThreadPri(NULL, 10);
logExecution(0); /* 4 */
/*
* Raise my priority back up.
*/
osSetThreadPri(NULL, 40);
osSetThreadPri(&slave1Thread, 30);
osSetThreadPri(&slave2Thread, 20);
logExecution(0); /* 5 */
osStartThread(&slave1Thread);
osStartThread(&slave2Thread);
logExecution(0); /* 6 */
/*
* Lower priority to let slaves run.
*/
osSetThreadPri(NULL, 10);
logExecution(0); /* 9 */
/*
* Reap results.
*/
for (i = 0; i < NUM_SLAVES; i++) {
(void)osRecvMesg(&slaveMesgQueue, (OSMesg *)&addFailures,
OS_MESG_BLOCK);
numFailures += addFailures;
}
/*
* Verify everybody ran when they were supposed to.
*/
if (logPtr != &logTab[NUM_LOG]) {
osSyncPrintf("thread9: log table underflow\n");
numFailures++;
}
for (i = 0; i < logPtr - logTab; i++) {
if (expLogTab[i] != logTab[i]) {
osSyncPrintf("thread9: expected log id %d, actual %d at entry %d\n",
expLogTab[i], logTab[i], i);
numFailures++;
}
}
/*
* Restore original interrupt mask and check it once more.
*/
currentMask = osSetIntMask(savedMask);
if (currentMask != OS_IM_ALL) {
osSyncPrintf("thread9: expected interrupt mask 0x%x, actual 0x%x\n",
OS_IM_ALL, currentMask);
numFailures++;
}
return(numFailures);
}
static void
slave(void *arg)
{
int id;
int numFailures = 0;
id = (int)arg;
logExecution(id); /* 2, 3 */
osStopThread(NULL);
logExecution(id); /* 7, 8 */
osSendMesg(&slaveMesgQueue, (OSMesg)numFailures, OS_MESG_BLOCK);
}
static int
logExecution(int id)
{
if (logPtr >= &logTab[NUM_LOG]) {
osSyncPrintf("thread9: log table overflow\n");
return(1);
}
/*
osSyncPrintf("%d. log %d\n", logPtr-logTab, id);
*/
*logPtr++ = id;
return(0);
}