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New lock tests.

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This commit is contained in:
Geoffrey Challen
2017-02-20 10:23:19 -05:00
parent dda4c39752 4298d0634f
commit 4c9b617140
3 changed files with 116 additions and 5 deletions
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113
kern/test/synchtest.c
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@@ -238,7 +238,6 @@ fail2:
return;
}
int
locktest(int nargs, char **args)
{
@@ -289,6 +288,13 @@ locktest(int nargs, char **args)
return 0;
}
/*
* Note that the following tests that panic on success do minimal cleanup
* afterward. This is to avoid causing a panic that could be unintentiontally
* considered a success signal by test161. As a result, they leak memory,
* don't destroy synchronization primitives, etc.
*/
int
locktest2(int nargs, char **args) {
(void)nargs;
@@ -309,9 +315,9 @@ locktest2(int nargs, char **args) {
success(TEST161_FAIL, SECRET, "lt2");
lock_destroy(testlock);
testlock = NULL;
/* Don't do anything that could panic. */
testlock = NULL;
return 0;
}
@@ -336,11 +342,110 @@ locktest3(int nargs, char **args) {
success(TEST161_FAIL, SECRET, "lt3");
testlock = NULL;
/* Don't do anything that could panic. */
testlock = NULL;
return 0;
}
/*
* Used by both lt4 and lt5 below. Simply acquires a lock in a separate
* thread. Uses a semaphore as a barrier to make sure it gets the lock before
* the driver completes.
*/
static
void
locktestacquirer(void * junk, unsigned long num)
{
(void)junk;
(void)num;
lock_acquire(testlock);
V(donesem);
return;
}
int
locktest4(int nargs, char **args) {
(void) nargs;
(void) args;
kprintf_n("Starting lt4...\n");
kprintf_n("(This test panics on success!)\n");
testlock = lock_create("testlock");
if (testlock == NULL) {
panic("lt4: lock_create failed\n");
}
donesem = sem_create("donesem", 0);
if (donesem == NULL) {
lock_destroy(testlock);
panic("lt4: sem_create failed\n");
}
result = thread_fork("lt4", NULL, locktestacquirer, NULL, 0);
if (result) {
panic("lt4: thread_fork failed: %s\n", strerror(result));
}
P(donesem);
secprintf(SECRET, "Should panic...", "lt4");
lock_release(testlock);
/* Should not get here on success. */
success(TEST161_FAIL, SECRET, "lt4");
/* Don't do anything that could panic. */
testlock = NULL;
donesem = NULL;
return 0;
}
int
locktest5(int nargs, char **args) {
(void) nargs;
(void) args;
kprintf_n("Starting lt5...\n");
kprintf_n("(This test panics on success!)\n");
testlock = lock_create("testlock");
if (testlock == NULL) {
panic("lt5: lock_create failed\n");
}
donesem = sem_create("donesem", 0);
if (donesem == NULL) {
lock_destroy(testlock);
panic("lt5: sem_create failed\n");
}
result = thread_fork("lt5", NULL, locktestacquirer, NULL, 0);
if (result) {
panic("lt5: thread_fork failed: %s\n", strerror(result));
}
P(donesem);
secprintf(SECRET, "Should panic...", "lt5");
KASSERT(!(lock_do_i_hold(testlock)));
/* Should not get here on success. */
success(TEST161_FAIL, SECRET, "lt5");
/* Don't do anything that could panic. */
testlock = NULL;
donesem = NULL;
return 0;
}
static
void
cvtestthread(void *junk, unsigned long num)