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add call/reply parsing of the cluster connect-wait call to the test daemon.

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(This used to be ctdb commit c54c87feb89b8d97655c1fcd748a295119a1171f)
This commit is contained in:
Ronnie sahlberg 2007-04-11 19:27:19 +10:00
parent 153bf81026
commit fbb1d9e50d
1 changed files with 61 additions and 5 deletions
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66
ctdb/direct/ctdbd_test.c
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@ -51,7 +51,7 @@ static int ux_socket_connect(const char *name)
return fd; return fd;
} }
void register_svid_with_daemon(int fd, int pid) void register_pid_with_daemon(int fd, int pid)
{ {
struct ctdb_req_register r; struct ctdb_req_register r;
@ -66,9 +66,53 @@ void register_svid_with_daemon(int fd, int pid)
write(fd, &r, sizeof(r)); write(fd, &r, sizeof(r));
} }
/* send a command to the cluster to wait until all nodes are connected
and the cluster is fully operational
*/
int wait_for_cluster(int fd)
{
struct ctdb_req_connect_wait req;
struct ctdb_reply_connect_wait rep;
int cnt, tot;
/* send a connect wait command to the local node */
bzero(&req, sizeof(req));
req.hdr.length = sizeof(req);
req.hdr.ctdb_magic = CTDB_MAGIC;
req.hdr.ctdb_version = CTDB_VERSION;
req.hdr.operation = CTDB_REQ_CONNECT_WAIT;
/* XXX must deal with partial writes here */
write(fd, &req, sizeof(req));
/* read the 4 bytes of length for the pdu */
cnt=0;
tot=4;
while(cnt!=tot){
int numread;
numread=read(fd, ((char *)&rep)+cnt, tot-cnt);
if(numread>0){
cnt+=numread;
}
}
/* read the rest of the pdu */
tot=rep.hdr.length;
while(cnt!=tot){
int numread;
numread=read(fd, ((char *)&rep)+cnt, tot-cnt);
if(numread>0){
cnt+=numread;
}
}
return rep.vnn;
}
int main(int argc, const char *argv[]) int main(int argc, const char *argv[])
{ {
int fd, pid; int fd, pid, vnn;
/* open the socket to talk to the local ctdb daemon */ /* open the socket to talk to the local ctdb daemon */
fd=ux_socket_connect(CTDB_SOCKET); fd=ux_socket_connect(CTDB_SOCKET);
@ -77,10 +121,22 @@ int main(int argc, const char *argv[])
exit(10); exit(10);
} }
/* register our local server id with the daemon */
pid=getpid();
register_svid_with_daemon(fd, pid);
/* register our local server id with the daemon so that it knows
where to send messages addressed to our local pid.
*/
pid=getpid();
register_pid_with_daemon(fd, pid);
/* do a connect wait to ensure that all nodes in the cluster are up
and operational.
this also tells us the vnn of the local cluster.
If someone wants to send us a emssage they should send it to
this vnn and our pid
*/
vnn=wait_for_cluster(fd);
printf("our address is vnn:%d pid:%d if someone wants to send us a message!\n",vnn,pid);
return 0; return 0;
} }