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/* Copyright (c) 2015-2018 Dovecot authors, see the included COPYING file */
#include "test-lib.h"
#include "time-util.h"
#include "ioloop.h"
#include "lib-signals.h"
#include <unistd.h>
#include <sys/types.h>
struct test_context_delayed {
bool timed_out:1;
bool signal_handled:1;
};
static void
kill_timeout(struct test_context_delayed *tctx ATTR_UNUSED)
{
if (kill(getpid(), SIGALRM) < 0)
i_fatal("Failed to send signal: %m");
}
static void
test_timeout(struct test_context_delayed *tctx)
{
tctx->timed_out = TRUE;
io_loop_stop(current_ioloop);
}
static void
signal_handler_delayed(const siginfo_t *si ATTR_UNUSED,
void *context ATTR_UNUSED)
{
struct test_context_delayed *tctx =
(struct test_context_delayed *)context;
tctx->signal_handled = TRUE;
io_loop_stop(current_ioloop);
}
static void
test_lib_signals_delayed(void)
{
struct test_context_delayed tctx;
struct timeout *to_kill, *to_test;
struct ioloop *ioloop;
test_begin("lib-signals delayed - init lib-signals first");
i_zero(&tctx);
lib_signals_init();
lib_signals_set_handler(SIGALRM,
LIBSIG_FLAGS_SAFE | LIBSIG_FLAG_IOLOOP_AUTOMOVE,
signal_handler_delayed, &tctx);
ioloop = io_loop_create();
to_kill = timeout_add_short(200, kill_timeout, &tctx);
to_test = timeout_add_short(400, test_timeout, &tctx);
io_loop_run(ioloop);
timeout_remove(&to_kill);
timeout_remove(&to_test);
io_loop_destroy(&ioloop);
lib_signals_deinit();
test_assert(!tctx.timed_out);
test_assert(tctx.signal_handled);
test_end();
test_begin("lib-signals delayed - init ioloop first");
i_zero(&tctx);
ioloop = io_loop_create();
lib_signals_init();
lib_signals_set_handler(SIGALRM,
LIBSIG_FLAGS_SAFE | LIBSIG_FLAG_IOLOOP_AUTOMOVE,
signal_handler_delayed, &tctx);
to_kill = timeout_add_short(200, kill_timeout, &tctx);
to_test = timeout_add_short(400, test_timeout, &tctx);
io_loop_run(ioloop);
timeout_remove(&to_kill);
timeout_remove(&to_test);
lib_signals_deinit();
io_loop_destroy(&ioloop);
test_assert(!tctx.timed_out);
test_assert(tctx.signal_handled);
test_end();
}
static void
test_lib_signals_delayed_nested_ioloop(void)
{
struct test_context_delayed tctx;
struct timeout *to_kill, *to_test;
struct ioloop *ioloop1, *ioloop2;
test_begin("lib-signals delayed in nested ioloop");
i_zero(&tctx);
lib_signals_init();
lib_signals_set_handler(SIGALRM,
LIBSIG_FLAGS_SAFE | LIBSIG_FLAG_IOLOOP_AUTOMOVE,
signal_handler_delayed, &tctx);
/* briefly run outer ioloop */
ioloop1 = io_loop_create();
to_test = timeout_add_short(100, test_timeout, &tctx);
io_loop_run(ioloop1);
timeout_remove(&to_test);
test_assert(tctx.timed_out);
test_assert(!tctx.signal_handled);
tctx.timed_out = FALSE;
/* run inner ioloop, which triggers the signal */
ioloop2 = io_loop_create();
to_kill = timeout_add_short(200, kill_timeout, &tctx);
to_test = timeout_add_short(400, test_timeout, &tctx);
io_loop_run(ioloop2);
timeout_remove(&to_kill);
timeout_remove(&to_test);
io_loop_destroy(&ioloop2);
io_loop_destroy(&ioloop1);
lib_signals_deinit();
test_assert(!tctx.timed_out);
test_assert(tctx.signal_handled);
test_end();
}
static void
test_lib_signals_delayed_no_ioloop_automove(void)
{
struct test_context_delayed tctx;
struct timeout *to_kill, *to_test;
struct ioloop *ioloop1, *ioloop2;
test_begin("lib-signals delayed with NO_IOLOOP_AUTOMOVE - unmoved");
i_zero(&tctx);
ioloop1 = io_loop_create();
lib_signals_init();
lib_signals_set_handler(SIGALRM, LIBSIG_FLAGS_SAFE,
signal_handler_delayed, &tctx);
/* briefly run outer ioloop */
to_test = timeout_add_short(100, test_timeout, &tctx);
io_loop_run(ioloop1);
timeout_remove(&to_test);
test_assert(tctx.timed_out);
test_assert(!tctx.signal_handled);
tctx.timed_out = FALSE;
/* run inner ioloop, which triggers the signal but musn't handle it */
ioloop2 = io_loop_create();
to_kill = timeout_add_short(200, kill_timeout, &tctx);
to_test = timeout_add_short(400, test_timeout, &tctx);
io_loop_run(ioloop2);
test_assert(tctx.timed_out);
test_assert(!tctx.signal_handled);
tctx.timed_out = FALSE;
timeout_remove(&to_kill);
timeout_remove(&to_test);
io_loop_destroy(&ioloop2);
/* run outer ioloop once more */
to_test = timeout_add_short(100, test_timeout, &tctx);
io_loop_run(ioloop1);
timeout_remove(&to_test);
lib_signals_deinit();
io_loop_destroy(&ioloop1);
test_assert(!tctx.timed_out);
test_assert(tctx.signal_handled);
test_end();
test_begin("lib-signals delayed with NO_IOLOOP_AUTOMOVE - moved");
i_zero(&tctx);
ioloop1 = io_loop_create();
lib_signals_init();
lib_signals_set_handler(SIGALRM, LIBSIG_FLAGS_SAFE,
signal_handler_delayed, &tctx);
/* briefly run outer ioloop */
to_test = timeout_add_short(100, test_timeout, &tctx);
io_loop_run(ioloop1);
timeout_remove(&to_test);
test_assert(tctx.timed_out);
test_assert(!tctx.signal_handled);
tctx.timed_out = FALSE;
/* run inner ioloop, which triggers the signal */
ioloop2 = io_loop_create();
lib_signals_switch_ioloop(SIGALRM,
signal_handler_delayed, &tctx);
to_kill = timeout_add_short(200, kill_timeout, &tctx);
to_test = timeout_add_short(400, test_timeout, &tctx);
io_loop_run(ioloop2);
test_assert(!tctx.timed_out);
test_assert(tctx.signal_handled);
timeout_remove(&to_kill);
timeout_remove(&to_test);
io_loop_destroy(&ioloop2);
lib_signals_deinit();
io_loop_destroy(&ioloop1);
test_end();
}
void test_lib_signals(void)
{
test_lib_signals_delayed();
test_lib_signals_delayed_nested_ioloop();
test_lib_signals_delayed_no_ioloop_automove();
}
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