diff options
Diffstat (limited to 'source4/cluster/ctdb/tests/ctdb_messaging.c')
| -rw-r--r-- | source4/cluster/ctdb/tests/ctdb_messaging.c | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/source4/cluster/ctdb/tests/ctdb_messaging.c b/source4/cluster/ctdb/tests/ctdb_messaging.c new file mode 100644 index 0000000000..050f14de38 --- /dev/null +++ b/source4/cluster/ctdb/tests/ctdb_messaging.c @@ -0,0 +1,187 @@ +/* + test of messaging + + Copyright (C) Andrew Tridgell 2006 + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +*/ + +#include "includes.h" +#include "lib/events/events.h" +#include "system/filesys.h" +#include "popt.h" + +static int timelimit = 10; +static int num_records = 10; +static int num_msgs = 1; +static int num_repeats = 100; +static int num_clients = 2; + + +/* + handler for messages in bench_ring() +*/ +static void message_handler(struct ctdb_context *ctdb, uint32_t srvid, + TDB_DATA data, void *private_data) +{ + printf("client vnn:%d received a message to srvid:%d [%s]\n",ctdb_get_vnn(ctdb),srvid,data.dptr); + fflush(stdout); +} + +/* + main program +*/ +int main(int argc, const char *argv[]) +{ + struct ctdb_context *ctdb; + struct ctdb_db_context *ctdb_db; + const char *nlist = NULL; + const char *transport = "tcp"; + const char *myaddress = NULL; + int self_connect=0; + int daemon_mode=0; + char buf[256]; + + struct poptOption popt_options[] = { + POPT_AUTOHELP + { "nlist", 0, POPT_ARG_STRING, &nlist, 0, "node list file", "filename" }, + { "listen", 0, POPT_ARG_STRING, &myaddress, 0, "address to listen on", "address" }, + { "transport", 0, POPT_ARG_STRING, &transport, 0, "protocol transport", NULL }, + { "self-connect", 0, POPT_ARG_NONE, &self_connect, 0, "enable self connect", "boolean" }, + { "daemon", 0, POPT_ARG_NONE, &daemon_mode, 0, "spawn a ctdb daemon", "boolean" }, + { "timelimit", 't', POPT_ARG_INT, &timelimit, 0, "timelimit", "integer" }, + { "num-records", 'r', POPT_ARG_INT, &num_records, 0, "num_records", "integer" }, + { "num-msgs", 'n', POPT_ARG_INT, &num_msgs, 0, "num_msgs", "integer" }, + { "num-clients", 0, POPT_ARG_INT, &num_clients, 0, "num_clients", "integer" }, + POPT_TABLEEND + }; + int opt; + const char **extra_argv; + int extra_argc = 0; + int ret, i, j; + poptContext pc; + struct event_context *ev; + pid_t pid; + int srvid; + TDB_DATA data; + + pc = poptGetContext(argv[0], argc, argv, popt_options, POPT_CONTEXT_KEEP_FIRST); + + while ((opt = poptGetNextOpt(pc)) != -1) { + switch (opt) { + default: + fprintf(stderr, "Invalid option %s: %s\n", + poptBadOption(pc, 0), poptStrerror(opt)); + exit(1); + } + } + + /* setup the remaining options for the main program to use */ + extra_argv = poptGetArgs(pc); + if (extra_argv) { + extra_argv++; + while (extra_argv[extra_argc]) extra_argc++; + } + + if (nlist == NULL || myaddress == NULL) { + printf("You must provide a node list with --nlist and an address with --listen\n"); + exit(1); + } + + ev = event_context_init(NULL); + + /* initialise ctdb */ + ctdb = ctdb_init(ev); + if (ctdb == NULL) { + printf("Failed to init ctdb\n"); + exit(1); + } + + if (self_connect) { + ctdb_set_flags(ctdb, CTDB_FLAG_SELF_CONNECT); + } + if (daemon_mode) { + ctdb_set_flags(ctdb, CTDB_FLAG_DAEMON_MODE); + } + + ret = ctdb_set_transport(ctdb, transport); + if (ret == -1) { + printf("ctdb_set_transport failed - %s\n", ctdb_errstr(ctdb)); + exit(1); + } + + /* tell ctdb what address to listen on */ + ret = ctdb_set_address(ctdb, myaddress); + if (ret == -1) { + printf("ctdb_set_address failed - %s\n", ctdb_errstr(ctdb)); + exit(1); + } + + /* tell ctdb what nodes are available */ + ret = ctdb_set_nlist(ctdb, nlist); + if (ret == -1) { + printf("ctdb_set_nlist failed - %s\n", ctdb_errstr(ctdb)); + exit(1); + } + + /* attach to a specific database */ + ctdb_db = ctdb_attach(ctdb, "test.tdb", TDB_DEFAULT, O_RDWR|O_CREAT|O_TRUNC, 0666); + if (!ctdb_db) { + printf("ctdb_attach failed - %s\n", ctdb_errstr(ctdb)); + exit(1); + } + + /* start the protocol running */ + ret = ctdb_start(ctdb); + + srvid = -1; + for (i=0;i<num_clients-1;i++) { + pid=fork(); + if (pid) { + srvid = i; + break; + } + } + if (srvid == -1) { + srvid = num_clients-1; + } + + ctdb_set_message_handler(ctdb, srvid, message_handler, NULL); + + /* wait until all nodes are connected (should not be needed + outside of test code) */ + ctdb_connect_wait(ctdb); + + sleep(3); + + printf("sending message from vnn:%d to vnn:%d/srvid:%d\n",ctdb_get_vnn(ctdb),ctdb_get_vnn(ctdb), 1-srvid); + for (i=0;i<ctdb_get_num_nodes(ctdb);i++) { + for (j=0;j<num_clients;j++) { + printf("sending message to %d:%d\n", i, j); + sprintf(buf,"Message from %d to vnn:%d srvid:%d",ctdb_get_vnn(ctdb),i,j); + data.dptr=buf; + data.dsize=strlen(buf)+1; + ctdb_send_message(ctdb, i, j, data); + } + } + + while (1) { + event_loop_once(ev); + } + + /* shut it down */ + talloc_free(ctdb); + return 0; +} |