source3/torture/test_ctdbconn.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Test new ctdb API
   4    Copyright (C) Volker Lendecke 2012
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #include "includes.h"
  21 #include "torture/proto.h"
  22
  23 #include "ctdb_conn.h"
  24 #include "ctdbd_conn.h"
  25 #include "lib/util/tevent_unix.h"
  26 #include "tdb.h"
  27
  28 #include "ctdb_protocol.h"
  29
  30 #include "messages.h"
  31
  32 struct ctdb_conn_test_state {
  33         struct tevent_context *ev;
  34         struct ctdb_conn *conn;
  35         struct ctdb_msg_channel *channel;
  36         int msgno;
  37 };
  38
  39 static void ctdb_conn_test_got_conn(struct tevent_req *subreq);
  40 static void ctdb_conn_test_got_pnn(struct tevent_req *subreq);
  41 static void ctdb_conn_test_got_channel(struct tevent_req *subreq);
  42 static void ctdb_conn_test_got_msg(struct tevent_req *subreq);
  43 static void ctdb_conn_test_msg_sent(struct tevent_req *subreq);
  44
  45 static struct tevent_req *ctdb_conn_test_send(TALLOC_CTX *mem_ctx,
  46                                               struct tevent_context *ev)
  47 {
  48         struct tevent_req *req, *subreq;
  49         struct ctdb_conn_test_state *state;
  50
  51         req = tevent_req_create(mem_ctx, &state, struct ctdb_conn_test_state);
  52         if (req == NULL) {
  53                 return NULL;
  54         }
  55         state->ev = ev;
  56
  57         subreq = ctdb_conn_init_send(mem_ctx, ev, lp_ctdbd_socket());
  58         if (tevent_req_nomem(subreq, req)) {
  59                 return tevent_req_post(req, ev);
  60         }
  61         tevent_req_set_callback(subreq, ctdb_conn_test_got_conn, req);
  62         return req;
  63 }
  64
  65 static void ctdb_conn_test_got_conn(struct tevent_req *subreq)
  66 {
  67         struct tevent_req *req = tevent_req_callback_data(
  68                 subreq, struct tevent_req);
  69         struct ctdb_conn_test_state *state = tevent_req_data(
  70                 req, struct ctdb_conn_test_state);
  71         uint64_t ret;
  72
  73         ret = ctdb_conn_init_recv(subreq, state, &state->conn);
  74         TALLOC_FREE(subreq);
  75         if (tevent_req_error(req, ret)) {
  76                 return;
  77         }
  78         subreq = ctdb_conn_control_send(state, state->ev, state->conn,
  79                                         CTDB_CURRENT_NODE,
  80                                         CTDB_CONTROL_GET_PNN, 0, 0, NULL, 0);
  81         if (tevent_req_nomem(subreq, req)) {
  82                 return;
  83         }
  84         tevent_req_set_callback(subreq, ctdb_conn_test_got_pnn, req);
  85 }
  86
  87 static void ctdb_conn_test_got_pnn(struct tevent_req *subreq)
  88 {
  89         struct tevent_req *req = tevent_req_callback_data(
  90                 subreq, struct tevent_req);
  91         struct ctdb_conn_test_state *state = tevent_req_data(
  92                 req, struct ctdb_conn_test_state);
  93         int ret;
  94         struct ctdb_reply_control *reply;
  95
  96         ret = ctdb_conn_control_recv(subreq, talloc_tos(), &reply);
  97         TALLOC_FREE(subreq);
  98         if (tevent_req_error(req, ret)) {
  99                 return;
 100         }
 101         printf("vnn=%d\n", (int)reply->status);
 102
 103         subreq = ctdb_msg_channel_init_send(
 104                 state, state->ev, lp_ctdbd_socket(), 999999);
 105         if (tevent_req_nomem(subreq, req)) {
 106                 return;
 107         }
 108         tevent_req_set_callback(subreq, ctdb_conn_test_got_channel, req);
 109 }
 110
 111 static void ctdb_conn_test_got_channel(struct tevent_req *subreq)
 112 {
 113         struct tevent_req *req = tevent_req_callback_data(
 114                 subreq, struct tevent_req);
 115         struct ctdb_conn_test_state *state = tevent_req_data(
 116                 req, struct ctdb_conn_test_state);
 117         int ret;
 118
 119         ret = ctdb_msg_channel_init_recv(subreq, state, &state->channel);
 120         TALLOC_FREE(subreq);
 121         if (tevent_req_error(req, ret)) {
 122                 return;
 123         }
 124
 125         subreq = ctdb_msg_read_send(state, state->ev, state->channel);
 126         if (tevent_req_nomem(subreq, req)) {
 127                 return;
 128         }
 129         tevent_req_set_callback(subreq, ctdb_conn_test_got_msg, req);
 130
 131         state->msgno += 1;
 132
 133         subreq = ctdb_conn_msg_write_send(
 134                 state, state->ev, state->conn, CTDB_CURRENT_NODE, 999999,
 135                 (uint8_t *)&state->msgno, sizeof(state->msgno));
 136         if (tevent_req_nomem(subreq, req)) {
 137                 return;
 138         }
 139         tevent_req_set_callback(subreq, ctdb_conn_test_msg_sent, req);
 140 }
 141
 142 static void ctdb_conn_test_got_msg(struct tevent_req *subreq)
 143 {
 144         struct tevent_req *req = tevent_req_callback_data(
 145                 subreq, struct tevent_req);
 146         struct ctdb_conn_test_state *state = tevent_req_data(
 147                 req, struct ctdb_conn_test_state);
 148         uint8_t *buf;
 149         size_t buf_len;
 150         int ret;
 151
 152         ret = ctdb_msg_read_recv(subreq, talloc_tos(), &buf, &buf_len);
 153         TALLOC_FREE(subreq);
 154         if (tevent_req_error(req, ret)) {
 155                 return;
 156         }
 157         if (buf_len != sizeof(int)) {
 158                 printf("got invalid msg\n");
 159                 tevent_req_error(req, EINVAL);
 160                 return;
 161         }
 162         memcpy(&ret, buf, buf_len);
 163         printf("got msg %d\n", ret);
 164         if (ret == 5) {
 165                 tevent_req_done(req);
 166                 return;
 167         }
 168
 169         subreq = ctdb_msg_read_send(state, state->ev, state->channel);
 170         if (tevent_req_nomem(subreq, req)) {
 171                 return;
 172         }
 173         tevent_req_set_callback(subreq, ctdb_conn_test_got_msg, req);
 174 }
 175
 176 static void ctdb_conn_test_msg_sent(struct tevent_req *subreq)
 177 {
 178         struct tevent_req *req = tevent_req_callback_data(
 179                 subreq, struct tevent_req);
 180         struct ctdb_conn_test_state *state = tevent_req_data(
 181                 req, struct ctdb_conn_test_state);
 182         int ret;
 183
 184         ret = ctdb_conn_msg_write_recv(subreq);
 185         TALLOC_FREE(subreq);
 186         if (tevent_req_error(req, ret)) {
 187                 return;
 188         }
 189         state->msgno += 1;
 190
 191         if (state->msgno >= 10) {
 192                 return;
 193         }
 194
 195         subreq = ctdb_conn_msg_write_send(
 196                 state, state->ev, state->conn, CTDB_CURRENT_NODE, 999999,
 197                 (uint8_t *)&state->msgno, sizeof(state->msgno));
 198         if (tevent_req_nomem(subreq, req)) {
 199                 return;
 200         }
 201         tevent_req_set_callback(subreq, ctdb_conn_test_msg_sent, req);
 202 }
 203
 204 static int ctdb_conn_test_recv(struct tevent_req *req)
 205 {
 206         int err;
 207         if (tevent_req_is_unix_error(req, &err)) {
 208                 return err;
 209         }
 210         return 0;
 211 }
 212
 213 bool run_ctdb_conn(int dummy)
 214 {
 215         struct tevent_context *ev;
 216         struct tevent_req *req;
 217         int ret;
 218
 219         ev = samba_tevent_context_init(talloc_tos());
 220         if (ev == NULL) {
 221                 fprintf(stderr, "tevent_context_init failed\n");
 222                 return false;
 223         }
 224         req = ctdb_conn_test_send(ev, ev);
 225         if (req == NULL) {
 226                 fprintf(stderr, "ctdb_conn_test_send failed\n");
 227                 return false;
 228         }
 229         if (!tevent_req_poll(req, ev)) {
 230                 fprintf(stderr, "tevent_req_poll failed\n");
 231                 return false;
 232         }
 233         ret = ctdb_conn_test_recv(req);
 234         TALLOC_FREE(req);
 235         printf("ctdb_conn_test returned %s\n",
 236                ret ? strerror(ret) : "success");
 237         TALLOC_FREE(ev);
 238         return (ret == 0);
 239 }