static void test_tflush (void) { Npfcall *fc, *fc2; if (!(fc = np_create_tflush (1))) msg_exit ("out of memory in %s", __FUNCTION__); fc2 = _rcv_buf (fc, P9_TFLUSH, __FUNCTION__); assert (fc->u.tflush.oldtag == fc2->u.tflush.oldtag); free (fc); free (fc2); }
static void _flush_series (Npcfsys *fs, Npcfid *root) { Npfcall *rc = NULL, *tc = NULL, *ac = NULL; u16 tag, flushtag; int n, i; struct sigaction sa; assert (fs->trans != NULL); sa.sa_flags = 0; sigemptyset(&sa.sa_mask); sa.sa_handler = _alarm_clock; if (sigaction (SIGALRM, &sa, NULL) < 0) err_exit ("sigaction"); /* write 100 tversions */ for (i = 0; i < 100; i++) { if (!(tc = np_create_tversion (fs->msize, "9P2000.L"))) msg_exit ("out of memory"); flushtag = tag = npc_get_id(fs->tagpool); np_set_tag(tc, tag); n = np_trans_write(fs->trans, tc->pkt, tc->size); if (n < 0) errn_exit (np_rerror (), "np_trans_write"); if (n != tc->size) msg_exit ("np_trans_write came up unexpectedly short"); //msg ("sent tversion tag %d", tc->tag); free(tc); } msg ("sent 100 tversions"); /* flush the most recent */ if (!(ac = np_create_tflush (flushtag))) msg_exit ("out of memory"); tag = npc_get_id(fs->tagpool); np_set_tag(ac, tag); n = np_trans_write(fs->trans, ac->pkt, ac->size); if (n < 0) errn_exit (np_rerror (), "np_trans_write"); if (n != ac->size) msg_exit ("np_trans_write came up unexpectedly short"); //msg ("sent tflush tag %d (flushing tag %d)", ac->tag, flushtag); free (ac); msg ("sent 1 tflush"); /* receive up to 101 responses with 1s timeout */ for (i = 0; i < 101; i++) { if (!(rc = malloc(sizeof(*rc) + fs->msize))) msg_exit ("out of memory"); rc->pkt = (u8*)rc + sizeof(*rc); alarm (1); n = np_trans_read(fs->trans, rc->pkt, fs->msize); if (n < 0) { if (errno == EINTR) break; errn_exit (np_rerror (), "np_trans_read"); } alarm (0); if (n == 0) msg_exit ("np_trans_read: unexpected EOF"); if (!np_deserialize (rc, rc->pkt)) msg_exit ("failed to deserialize response in one go"); //msg ("received tag %d", rc->tag); free(rc); //npc_put_id(fs->tagpool, rc->tag); } if (i == 100 || i == 101) msg ("received 100/101 respones"); else msg ("received %d responses", i); }