lwip/test/unit/core/test_timers.c

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#include "test_timers.h"
#include "lwip/def.h"
#include "lwip/timeouts.h"
#include "arch/sys_arch.h"
/* Setups/teardown functions */
static struct sys_timeo* old_list_head;
static void
timers_setup(void)
{
struct sys_timeo** list_head = lwip_sys_timers_get_next_timout();
old_list_head = *list_head;
*list_head = NULL;
}
static void
timers_teardown(void)
{
struct sys_timeo** list_head = lwip_sys_timers_get_next_timout();
*list_head = old_list_head;
lwip_sys_now = 0;
}
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static int fired[3];
static void dummy_handler(void* arg)
{
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int index = LWIP_PTR_NUMERIC_CAST(int, arg);
fired[index] = 1;
}
/* reproduce bug bug #52748: the bug in timeouts.c */
START_TEST(test_bug52748)
{
LWIP_UNUSED_ARG(_i);
memset(&fired, 0, sizeof(fired));
lwip_sys_now = 50;
sys_timeout(20, dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 0));
sys_timeout( 5, dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 2));
lwip_sys_now = 55;
sys_check_timeouts();
fail_unless(fired[0] == 0);
fail_unless(fired[1] == 0);
fail_unless(fired[2] == 1);
lwip_sys_now = 60;
sys_timeout(10, dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 1));
sys_check_timeouts();
fail_unless(fired[0] == 0);
fail_unless(fired[1] == 0);
fail_unless(fired[2] == 1);
lwip_sys_now = 70;
sys_check_timeouts();
fail_unless(fired[0] == 1);
fail_unless(fired[1] == 1);
fail_unless(fired[2] == 1);
}
END_TEST
START_TEST(test_timers)
{
LWIP_UNUSED_ARG(_i);
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/* struct sys_timeo** list_head = lwip_sys_timers_get_next_timout(); */
/* check without u32_t wraparound */
lwip_sys_now = 100;
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sys_timeout(10, dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 0));
fail_unless(sys_timeouts_sleeptime() == 10);
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sys_timeout(20, dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 1));
fail_unless(sys_timeouts_sleeptime() == 10);
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sys_timeout( 5, dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 2));
fail_unless(sys_timeouts_sleeptime() == 5);
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/* linked list correctly sorted? */
/*
fail_unless((*list_head)->time == (u32_t)(lwip_sys_now + 5));
fail_unless((*list_head)->next->time == (u32_t)(lwip_sys_now + 10));
fail_unless((*list_head)->next->next->time == (u32_t)(lwip_sys_now + 20));
*/
/* check timers expire in correct order */
memset(&fired, 0, sizeof(fired));
lwip_sys_now += 4;
sys_check_timeouts();
fail_unless(fired[2] == 0);
lwip_sys_now += 1;
sys_check_timeouts();
fail_unless(fired[2] == 1);
lwip_sys_now += 4;
sys_check_timeouts();
fail_unless(fired[0] == 0);
lwip_sys_now += 1;
sys_check_timeouts();
fail_unless(fired[0] == 1);
lwip_sys_now += 9;
sys_check_timeouts();
fail_unless(fired[1] == 0);
lwip_sys_now += 1;
sys_check_timeouts();
fail_unless(fired[1] == 1);
sys_untimeout(dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 0));
sys_untimeout(dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 1));
sys_untimeout(dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 2));
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/* check u32_t wraparound */
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lwip_sys_now = 0xfffffff5;
sys_timeout(10, dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 0));
fail_unless(sys_timeouts_sleeptime() == 10);
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sys_timeout(20, dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 1));
fail_unless(sys_timeouts_sleeptime() == 10);
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sys_timeout( 5, dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 2));
fail_unless(sys_timeouts_sleeptime() == 5);
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/* linked list correctly sorted? */
/*
fail_unless((*list_head)->time == (u32_t)(lwip_sys_now + 5));
fail_unless((*list_head)->next->time == (u32_t)(lwip_sys_now + 10));
fail_unless((*list_head)->next->next->time == (u32_t)(lwip_sys_now + 20));
*/
/* check timers expire in correct order */
memset(&fired, 0, sizeof(fired));
lwip_sys_now += 4;
sys_check_timeouts();
fail_unless(fired[2] == 0);
lwip_sys_now += 1;
sys_check_timeouts();
fail_unless(fired[2] == 1);
lwip_sys_now += 4;
sys_check_timeouts();
fail_unless(fired[0] == 0);
lwip_sys_now += 1;
sys_check_timeouts();
fail_unless(fired[0] == 1);
lwip_sys_now += 9;
sys_check_timeouts();
fail_unless(fired[1] == 0);
lwip_sys_now += 1;
sys_check_timeouts();
fail_unless(fired[1] == 1);
sys_untimeout(dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 0));
sys_untimeout(dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 1));
sys_untimeout(dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 2));
}
END_TEST
/** Create the suite including all tests for this module */
Suite *
timers_suite(void)
{
testfunc tests[] = {
/* TESTFUNC(test_bug52748), */
TESTFUNC(test_timers)
};
testfunc tests_unused[] = {
TESTFUNC(test_bug52748)
};
LWIP_UNUSED_ARG(tests_unused);
return create_suite("TIMERS", tests, LWIP_ARRAYSIZE(tests), timers_setup, timers_teardown);
}