int main(int argc, char **argv)
{
PRBool rv = PR_TRUE;
PRIntervalTime duration;
PRUint32 cpu, cpus = 2, loops = 100;
PR_STDIO_INIT();
PR_Init(PR_USER_THREAD, PR_PRIORITY_NORMAL, 0);
{
/* The command line argument: -d is used to determine if the test is being run
in debug mode. The regress tool requires only one line output:PASS or FAIL.
All of the printfs associated with this test has been handled with a if (debug_mode)
test.
Command line argument -l <num> sets the number of loops.
Command line argument -c <num> sets the number of cpus.
Usage: lock [-d] [-l <num>] [-c <num>]
*/
PLOptStatus os;
PLOptState *opt = PL_CreateOptState(argc, argv, "dl:c:");
while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
{
if (PL_OPT_BAD == os) continue;
switch (opt->option)
{
case 'd': /* debug mode */
debug_mode = 1;
break;
case 'l': /* number of loops */
loops = atoi(opt->value);
break;
case 'c': /* number of cpus */
cpus = atoi(opt->value);
break;
default:
break;
}
}
PL_DestroyOptState(opt);
}
/* main test */
PR_SetConcurrency(8);
#ifdef XP_MAC
SetupMacPrintfLog("lock.log");
debug_mode = 1;
#endif
if (loops == 0) loops = 100;
if (debug_mode) printf("Lock: Using %d loops\n", loops);
if (cpus == 0) cpus = 2;
if (debug_mode) printf("Lock: Using %d cpu(s)\n", cpus);
(void)Sleeper(10); /* try filling in the caches */
for (cpu = 1; cpu <= cpus; ++cpu)
{
if (debug_mode) printf("\nLock: Using %d CPU(s)\n", cpu);
PR_SetConcurrency(cpu);
duration = Test("Overhead of PR_Sleep", Sleeper, loops, 0);
duration = 0;
(void)Test("Lock creation/deletion", MakeLock, loops, 0);
(void)Test("Lock non-contentious locking/unlocking", NonContentiousLock, loops, 0);
(void)Test("Lock contentious locking/unlocking", ContentiousLock, loops, duration);
(void)Test("Monitor creation/deletion", MakeMonitor, loops, 0);
(void)Test("Monitor non-contentious locking/unlocking", NonContentiousMonitor, loops, 0);
(void)Test("Monitor contentious locking/unlocking", ContentiousMonitor, loops, duration);
(void)Test("Cached monitor non-contentious locking/unlocking", NonContentiousCMonitor, loops, 0);
(void)Test("Cached monitor contentious locking/unlocking", ContentiousCMonitor, loops, duration);
(void)ReentrantMonitor(loops);
}
if (debug_mode) printf("%s: test %s\n", "Lock(mutex) test", ((rv) ? "passed" : "failed"));
else {
if (!rv)
failed_already=1;
}
if(failed_already)
{
printf("FAIL\n");
return 1;
}
else
{
printf("PASS\n");
return 0;
}
} /* main */
static int
WaitForPossession(ConstUnicode lockDir, // IN:
ConstUnicode fileName, // IN:
LockValues *memberValues, // IN:
LockValues *myValues) // IN:
{
int err = 0;
ASSERT(lockDir);
ASSERT(fileName);
/* "Win" or wait? */
if (((memberValues->lamportNumber < myValues->lamportNumber) ||
((memberValues->lamportNumber == myValues->lamportNumber) &&
(Unicode_Compare(memberValues->memberName,
myValues->memberName) < 0))) &&
((strcmp(memberValues->lockType, LOCK_EXCLUSIVE) == 0) ||
(strcmp(myValues->lockType, LOCK_EXCLUSIVE) == 0))) {
Unicode path;
uint32 loopCount;
Bool thisMachine;
thisMachine = FileLockMachineIDMatch(myValues->machineID,
memberValues->machineID);
loopCount = 0;
path = Unicode_Join(lockDir, DIRSEPS, fileName, NULL);
while ((err = Sleeper(myValues, &loopCount)) == 0) {
/* still there? */
err = FileAttributesRobust(path, NULL);
if (err != 0) {
if (err == ENOENT) {
/* Not there anymore; locker unlocked or timed out */
err = 0;
}
break;
}
/* still valid? */
if (thisMachine && !FileLockValidOwner(memberValues->executionID,
memberValues->payload)) {
/* Invalid Execution ID; remove the member file */
Warning(LGPFX" %s discarding file '%s'; invalid executionID.\n",
__FUNCTION__, UTF8(path));
err = RemoveLockingFile(lockDir, fileName);
break;
}
}
/*
* Log the disposition of each timeout for all non "try lock" locking
* attempts. This can assist in debugging locking problems.
*/
if ((myValues->msecMaxWaitTime != FILELOCK_TRYLOCK_WAIT) &&
(err == EAGAIN)) {
if (thisMachine) {
Log(LGPFX" %s timeout on '%s' due to a local process (%s)\n",
__FUNCTION__, UTF8(path), memberValues->executionID);
} else {
Log(LGPFX" %s timeout on '%s' due to another machine (%s)\n",
__FUNCTION__, UTF8(path), memberValues->machineID);
}
}
Unicode_Free(path);
}
return err;
}
