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https://github.com/lwip-tcpip/lwip.git
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234 lines
5.5 KiB
C
234 lines
5.5 KiB
C
#include "test_timers.h"
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#include "lwip/def.h"
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#include "lwip/timeouts.h"
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#include "arch/sys_arch.h"
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/* Setups/teardown functions */
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static struct sys_timeo* old_list_head;
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static void
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timers_setup(void)
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{
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struct sys_timeo** list_head = sys_timeouts_get_next_timeout();
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old_list_head = *list_head;
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*list_head = NULL;
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}
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static void
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timers_teardown(void)
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{
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struct sys_timeo** list_head = sys_timeouts_get_next_timeout();
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*list_head = old_list_head;
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lwip_sys_now = 0;
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}
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static int fired[3];
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static void
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dummy_handler(void* arg)
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{
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int index = LWIP_PTR_NUMERIC_CAST(int, arg);
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fired[index] = 1;
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}
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#define HANDLER_EXECUTION_TIME 5
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static int cyclic_fired;
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static void
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dummy_cyclic_handler(void)
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{
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cyclic_fired = 1;
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lwip_sys_now += HANDLER_EXECUTION_TIME;
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}
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struct lwip_cyclic_timer test_cyclic = {10, dummy_cyclic_handler};
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static void
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do_test_cyclic_timers(u32_t offset)
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{
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struct sys_timeo** list_head = sys_timeouts_get_next_timeout();
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/* verify normal timer expiration */
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lwip_sys_now = offset + 0;
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sys_timeout(test_cyclic.interval_ms, lwip_cyclic_timer, &test_cyclic);
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cyclic_fired = 0;
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sys_check_timeouts();
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fail_unless(cyclic_fired == 0);
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lwip_sys_now = offset + test_cyclic.interval_ms;
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sys_check_timeouts();
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fail_unless(cyclic_fired == 1);
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fail_unless((*list_head)->time == (u32_t)(lwip_sys_now + test_cyclic.interval_ms - HANDLER_EXECUTION_TIME));
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sys_untimeout(lwip_cyclic_timer, &test_cyclic);
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/* verify "overload" - next cyclic timer execution is already overdue twice */
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lwip_sys_now = offset + 0;
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sys_timeout(test_cyclic.interval_ms, lwip_cyclic_timer, &test_cyclic);
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cyclic_fired = 0;
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sys_check_timeouts();
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fail_unless(cyclic_fired == 0);
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lwip_sys_now = offset + 2*test_cyclic.interval_ms;
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sys_check_timeouts();
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fail_unless(cyclic_fired == 1);
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fail_unless((*list_head)->time == (u32_t)(lwip_sys_now + test_cyclic.interval_ms));
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}
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START_TEST(test_cyclic_timers)
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{
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LWIP_UNUSED_ARG(_i);
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/* check without u32_t wraparound */
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do_test_cyclic_timers(0);
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/* check with u32_t wraparound */
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do_test_cyclic_timers(0xfffffff0);
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}
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END_TEST
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/* reproduce bug #52748: the bug in timeouts.c */
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START_TEST(test_bug52748)
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{
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LWIP_UNUSED_ARG(_i);
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memset(&fired, 0, sizeof(fired));
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lwip_sys_now = 50;
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sys_timeout(20, dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 0));
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sys_timeout( 5, dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 2));
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lwip_sys_now = 55;
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sys_check_timeouts();
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fail_unless(fired[0] == 0);
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fail_unless(fired[1] == 0);
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fail_unless(fired[2] == 1);
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lwip_sys_now = 60;
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sys_timeout(10, dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 1));
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sys_check_timeouts();
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fail_unless(fired[0] == 0);
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fail_unless(fired[1] == 0);
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fail_unless(fired[2] == 1);
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lwip_sys_now = 70;
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sys_check_timeouts();
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fail_unless(fired[0] == 1);
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fail_unless(fired[1] == 1);
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fail_unless(fired[2] == 1);
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}
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END_TEST
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static void
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do_test_timers(u32_t offset)
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{
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struct sys_timeo** list_head = sys_timeouts_get_next_timeout();
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lwip_sys_now = offset + 0;
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sys_timeout(10, dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 0));
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fail_unless(sys_timeouts_sleeptime() == 10);
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sys_timeout(20, dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 1));
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fail_unless(sys_timeouts_sleeptime() == 10);
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sys_timeout( 5, dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 2));
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fail_unless(sys_timeouts_sleeptime() == 5);
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/* linked list correctly sorted? */
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fail_unless((*list_head)->time == (u32_t)(lwip_sys_now + 5));
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fail_unless((*list_head)->next->time == (u32_t)(lwip_sys_now + 10));
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fail_unless((*list_head)->next->next->time == (u32_t)(lwip_sys_now + 20));
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/* check timers expire in correct order */
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memset(&fired, 0, sizeof(fired));
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lwip_sys_now += 4;
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sys_check_timeouts();
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fail_unless(fired[2] == 0);
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lwip_sys_now += 1;
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sys_check_timeouts();
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fail_unless(fired[2] == 1);
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lwip_sys_now += 4;
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sys_check_timeouts();
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fail_unless(fired[0] == 0);
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lwip_sys_now += 1;
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sys_check_timeouts();
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fail_unless(fired[0] == 1);
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lwip_sys_now += 9;
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sys_check_timeouts();
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fail_unless(fired[1] == 0);
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lwip_sys_now += 1;
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sys_check_timeouts();
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fail_unless(fired[1] == 1);
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sys_untimeout(dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 0));
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sys_untimeout(dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 1));
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sys_untimeout(dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 2));
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}
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START_TEST(test_timers)
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{
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LWIP_UNUSED_ARG(_i);
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/* check without u32_t wraparound */
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do_test_timers(0);
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/* check with u32_t wraparound */
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do_test_timers(0xfffffff0);
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}
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END_TEST
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START_TEST(test_long_timer)
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{
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LWIP_UNUSED_ARG(_i);
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memset(&fired, 0, sizeof(fired));
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lwip_sys_now = 0;
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sys_timeout(LWIP_UINT32_MAX / 4, dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 0));
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fail_unless(sys_timeouts_sleeptime() == LWIP_UINT32_MAX / 4);
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sys_check_timeouts();
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fail_unless(fired[0] == 0);
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lwip_sys_now += LWIP_UINT32_MAX / 8;
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sys_check_timeouts();
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fail_unless(fired[0] == 0);
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lwip_sys_now += LWIP_UINT32_MAX / 8;
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sys_check_timeouts();
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fail_unless(fired[0] == 0);
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lwip_sys_now += 1;
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sys_check_timeouts();
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fail_unless(fired[0] == 1);
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sys_untimeout(dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 0));
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}
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END_TEST
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/** Create the suite including all tests for this module */
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Suite *
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timers_suite(void)
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{
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testfunc tests[] = {
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TESTFUNC(test_bug52748),
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TESTFUNC(test_cyclic_timers),
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TESTFUNC(test_timers),
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TESTFUNC(test_long_timer),
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};
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return create_suite("TIMERS", tests, LWIP_ARRAYSIZE(tests), timers_setup, timers_teardown);
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}
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