diff options
| -rw-r--r-- | lib/tevent/testsuite.c | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/lib/tevent/testsuite.c b/lib/tevent/testsuite.c index 5c2f695f27..cca7e9a372 100644 --- a/lib/tevent/testsuite.c +++ b/lib/tevent/testsuite.c @@ -28,6 +28,7 @@ #include "lib/tevent/tevent.h" #include "system/filesys.h" #include "system/select.h" +#include "system/network.h" #include "torture/torture.h" #ifdef HAVE_PTHREAD #include <pthread.h> @@ -204,6 +205,222 @@ static bool test_event_context(struct torture_context *test, return true; } +struct test_event_fd1_state { + struct torture_context *tctx; + const char *backend; + struct tevent_context *ev; + int sock[2]; + struct tevent_timer *te; + struct tevent_fd *fde0; + struct tevent_fd *fde1; + bool got_write; + bool got_read; + bool drain; + bool drain_done; + unsigned loop_count; + bool finished; + const char *error; +}; + +static void test_event_fd1_fde_handler(struct tevent_context *ev_ctx, + struct tevent_fd *fde, + uint16_t flags, + void *private_data) +{ + struct test_event_fd1_state *state = + (struct test_event_fd1_state *)private_data; + + if (state->drain_done) { + state->finished = true; + state->error = __location__; + return; + } + + if (state->drain) { + ssize_t ret; + uint8_t c = 0; + + if (!(flags & TEVENT_FD_READ)) { + state->finished = true; + state->error = __location__; + return; + } + + ret = read(state->sock[0], &c, 1); + if (ret == 1) { + return; + } + + /* + * end of test... + */ + tevent_fd_set_flags(fde, 0); + state->drain_done = true; + return; + } + + if (!state->got_write) { + uint8_t c = 0; + + if (flags != TEVENT_FD_WRITE) { + state->finished = true; + state->error = __location__; + return; + } + state->got_write = true; + + /* + * we write to the other socket... + */ + write(state->sock[1], &c, 1); + TEVENT_FD_NOT_WRITEABLE(fde); + TEVENT_FD_READABLE(fde); + return; + } + + if (!state->got_read) { + if (flags != TEVENT_FD_READ) { + state->finished = true; + state->error = __location__; + return; + } + state->got_read = true; + + TEVENT_FD_NOT_READABLE(fde); + return; + } + + state->finished = true; + state->error = __location__; + return; +} + +static void test_event_fd1_finished(struct tevent_context *ev_ctx, + struct tevent_timer *te, + struct timeval tval, + void *private_data) +{ + struct test_event_fd1_state *state = + (struct test_event_fd1_state *)private_data; + + if (state->drain_done) { + state->finished = true; + return; + } + + if (!state->got_write) { + state->finished = true; + state->error = __location__; + return; + } + + if (!state->got_read) { + state->finished = true; + state->error = __location__; + return; + } + + state->loop_count++; + if (state->loop_count > 3) { + state->finished = true; + state->error = __location__; + return; + } + + state->got_write = false; + state->got_read = false; + + tevent_fd_set_flags(state->fde0, TEVENT_FD_WRITE); + + if (state->loop_count > 2) { + state->drain = true; + TALLOC_FREE(state->fde1); + TEVENT_FD_READABLE(state->fde0); + } + + state->te = tevent_add_timer(state->ev, state->ev, + timeval_current_ofs(0,2000), + test_event_fd1_finished, state); +} + +static bool test_event_fd1(struct torture_context *tctx, + const void *test_data) +{ + struct test_event_fd1_state state; + + ZERO_STRUCT(state); + state.tctx = tctx; + state.backend = (const char *)test_data; + + state.ev = tevent_context_init_byname(tctx, state.backend); + if (state.ev == NULL) { + torture_skip(tctx, talloc_asprintf(tctx, + "event backend '%s' not supported\n", + state.backend)); + return true; + } + + tevent_set_debug_stderr(state.ev); + torture_comment(tctx, "backend '%s' - %s\n", + state.backend, __FUNCTION__); + + /* + * This tests the following: + * + * It monitors the state of state.sock[0] + * with tevent_fd, but we never read/write on state.sock[0] + * while state.sock[1] * is only used to write a few bytes. + * + * We have a loop: + * - we wait only for TEVENT_FD_WRITE on state.sock[0] + * - we write 1 byte to state.sock[1] + * - we wait only for TEVENT_FD_READ on state.sock[0] + * - we disable events on state.sock[0] + * - the timer event restarts the loop + * Then we close state.sock[1] + * We have a loop: + * - we wait for TEVENT_FD_READ/WRITE on state.sock[0] + * - we try to read 1 byte + * - if the read gets an error of returns 0 + * we disable the event handler + * - the timer finishes the test + */ + state.sock[0] = -1; + state.sock[1] = -1; + socketpair(AF_UNIX, SOCK_STREAM, 0, state.sock); + + state.te = tevent_add_timer(state.ev, state.ev, + timeval_current_ofs(0,1000), + test_event_fd1_finished, &state); + state.fde0 = tevent_add_fd(state.ev, state.ev, + state.sock[0], TEVENT_FD_WRITE, + test_event_fd1_fde_handler, &state); + /* state.fde1 is only used to auto close */ + state.fde1 = tevent_add_fd(state.ev, state.ev, + state.sock[1], 0, + test_event_fd1_fde_handler, &state); + + tevent_fd_set_auto_close(state.fde0); + tevent_fd_set_auto_close(state.fde1); + + while (!state.finished) { + errno = 0; + if (tevent_loop_once(state.ev) == -1) { + talloc_free(state.ev); + torture_fail(tctx, talloc_asprintf(tctx, + "Failed event loop %s\n", + strerror(errno))); + } + } + + talloc_free(state.ev); + + torture_assert(tctx, state.error == NULL, talloc_asprintf(tctx, + "%s", state.error)); + + return true; +} + #ifdef HAVE_PTHREAD static pthread_mutex_t threaded_mutex = PTHREAD_MUTEX_INITIALIZER; @@ -356,6 +573,10 @@ struct torture_suite *torture_local_event(TALLOC_CTX *mem_ctx) "context", test_event_context, (const void *)list[i]); + torture_suite_add_simple_tcase_const(backend_suite, + "fd1", + test_event_fd1, + (const void *)list[i]); torture_suite_add_suite(suite, backend_suite); } |