struct ctdb_req_header *hdr)
{
struct ctdb_reply_connect_wait *r = (struct ctdb_reply_connect_wait *)hdr;
+ ctdb->vnn = r->vnn;
ctdb->num_connected = r->num_connected;
}
struct ctdb_reply_call *c = (struct ctdb_reply_call *)hdr;
struct ctdb_client_call_state *state;
- state = idr_find_type(ctdb->idr, hdr->reqid, struct ctdb_client_call_state);
+ state = ctdb_reqid_find(ctdb, hdr->reqid, struct ctdb_client_call_state);
if (state == NULL) {
- DEBUG(0, ("reqid %d not found\n", hdr->reqid));
+ DEBUG(0,(__location__ " reqid %d not found\n", hdr->reqid));
+ return;
+ }
+
+ if (hdr->reqid != state->reqid) {
+ /* we found a record but it was the wrong one */
+ DEBUG(0, ("Dropped orphaned reply with reqid:%d\n",hdr->reqid));
return;
}
state->state = CTDB_CALL_DONE;
}
+static void ctdb_client_reply_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
+
/*
this is called in the client, when data comes in from the daemon
*/
goto done;
}
if (cnt != hdr->length) {
- ctdb_set_error(ctdb, "Bad header length %d expected %d in client\n",
- hdr->length, cnt);
+ ctdb_set_error(ctdb, "Bad header length %u expected %u in client\n",
+ (unsigned)hdr->length, (unsigned)cnt);
goto done;
}
ctdb_reply_connect_wait(ctdb, hdr);
break;
+ case CTDB_REPLY_CONTROL:
+ ctdb_client_reply_control(ctdb, hdr);
+ break;
+
default:
DEBUG(0,("bogus operation code:%d\n",hdr->operation));
}
/*
connect to a unix domain socket
*/
-static int ux_socket_connect(struct ctdb_context *ctdb)
+int ctdb_socket_connect(struct ctdb_context *ctdb)
{
struct sockaddr_un addr;
*/
static int ctdb_client_call_destructor(struct ctdb_client_call_state *state)
{
- idr_remove(state->ctdb_db->ctdb->idr, state->reqid);
+ ctdb_reqid_remove(state->ctdb_db->ctdb, state->reqid);
return 0;
}
/* if the domain socket is not yet open, open it */
if (ctdb->daemon.sd==-1) {
- ux_socket_connect(ctdb);
+ ctdb_socket_connect(ctdb);
}
ret = ctdb_ltdb_lock(ctdb_db, call->key);
}
len = offsetof(struct ctdb_req_call, data) + call->key.dsize + call->call_data.dsize;
- c = ctdbd_allocate_pkt(state, len);
+ c = ctdbd_allocate_pkt(ctdb, state, CTDB_REQ_CALL, len, struct ctdb_req_call);
if (c == NULL) {
DEBUG(0, (__location__ " failed to allocate packet\n"));
return NULL;
}
- talloc_set_name_const(c, "ctdb client req_call packet");
- memset(c, 0, offsetof(struct ctdb_req_call, data));
- c->hdr.length = len;
- c->hdr.ctdb_magic = CTDB_MAGIC;
- c->hdr.ctdb_version = CTDB_VERSION;
- c->hdr.operation = CTDB_REQ_CALL;
/* this limits us to 16k outstanding messages - not unreasonable */
- c->hdr.reqid = idr_get_new(ctdb->idr, state, 0xFFFF);
+ c->hdr.reqid = ctdb_reqid_new(ctdb, state);
c->flags = call->flags;
c->db_id = ctdb_db->db_id;
c->callid = call->call_id;
tell the daemon what messaging srvid we will use, and register the message
handler function in the client
*/
-int ctdb_set_message_handler(struct ctdb_context *ctdb, uint32_t srvid,
+int ctdb_set_message_handler(struct ctdb_context *ctdb, uint64_t srvid,
ctdb_message_fn_t handler,
void *private_data)
{
- struct ctdb_req_register c;
+ struct ctdb_req_register *c;
int res;
/* if the domain socket is not yet open, open it */
if (ctdb->daemon.sd==-1) {
- ux_socket_connect(ctdb);
+ ctdb_socket_connect(ctdb);
}
- ZERO_STRUCT(c);
-
- c.hdr.length = sizeof(c);
- c.hdr.ctdb_magic = CTDB_MAGIC;
- c.hdr.ctdb_version = CTDB_VERSION;
- c.hdr.operation = CTDB_REQ_REGISTER;
- c.srvid = srvid;
+ c = ctdbd_allocate_pkt(ctdb, ctdb, CTDB_REQ_REGISTER, sizeof(*c),
+ struct ctdb_req_register);
+ CTDB_NO_MEMORY(ctdb, c);
+ c->srvid = srvid;
- res = ctdb_client_queue_pkt(ctdb, &c.hdr);
+ res = ctdb_client_queue_pkt(ctdb, &c->hdr);
+ talloc_free(c);
if (res != 0) {
return res;
}
send a message - from client context
*/
int ctdb_send_message(struct ctdb_context *ctdb, uint32_t vnn,
- uint32_t srvid, TDB_DATA data)
+ uint64_t srvid, TDB_DATA data)
{
struct ctdb_req_message *r;
int len, res;
len = offsetof(struct ctdb_req_message, data) + data.dsize;
- r = ctdb->methods->allocate_pkt(ctdb, len);
+ r = ctdbd_allocate_pkt(ctdb, ctdb, CTDB_REQ_MESSAGE,
+ len, struct ctdb_req_message);
CTDB_NO_MEMORY(ctdb, r);
- talloc_set_name_const(r, "req_message packet");
- r->hdr.length = len;
- r->hdr.ctdb_magic = CTDB_MAGIC;
- r->hdr.ctdb_version = CTDB_VERSION;
- r->hdr.operation = CTDB_REQ_MESSAGE;
r->hdr.destnode = vnn;
r->hdr.srcnode = ctdb->vnn;
- r->hdr.reqid = 0;
r->srvid = srvid;
r->datalen = data.dsize;
memcpy(&r->data[0], data.dptr, data.dsize);
*/
void ctdb_connect_wait(struct ctdb_context *ctdb)
{
- struct ctdb_req_connect_wait r;
+ struct ctdb_req_connect_wait *r;
int res;
- ZERO_STRUCT(r);
-
- r.hdr.length = sizeof(r);
- r.hdr.ctdb_magic = CTDB_MAGIC;
- r.hdr.ctdb_version = CTDB_VERSION;
- r.hdr.operation = CTDB_REQ_CONNECT_WAIT;
+ r = ctdbd_allocate_pkt(ctdb, ctdb, CTDB_REQ_CONNECT_WAIT, sizeof(*r),
+ struct ctdb_req_connect_wait);
+ CTDB_NO_MEMORY_VOID(ctdb, r);
DEBUG(3,("ctdb_connect_wait: sending to ctdbd\n"));
/* if the domain socket is not yet open, open it */
if (ctdb->daemon.sd==-1) {
- ux_socket_connect(ctdb);
+ ctdb_socket_connect(ctdb);
}
- res = ctdb_queue_send(ctdb->daemon.queue, (uint8_t *)&r.hdr, r.hdr.length);
+ res = ctdb_queue_send(ctdb->daemon.queue, (uint8_t *)&r->hdr, r->hdr.length);
+ talloc_free(r);
if (res != 0) {
DEBUG(0,(__location__ " Failed to queue a connect wait request\n"));
return;
/* now we can go into the normal wait routine, as the reply packet
will update the ctdb->num_connected variable */
ctdb_daemon_connect_wait(ctdb);
+
+ /* get other config variables */
+ ctdb_get_config(ctdb);
}
/*
return NULL;
}
+ /* when torturing, ensure we test the remote path */
+ if ((ctdb_db->ctdb->flags & CTDB_FLAG_TORTURE) &&
+ random() % 5 == 0) {
+ h->header.dmaster = (uint32_t)-1;
+ }
+
+
DEBUG(4,("ctdb_fetch_lock: done local fetch\n"));
if (h->header.dmaster != ctdb_db->ctdb->vnn) {
*/
void ctdb_shutdown(struct ctdb_context *ctdb)
{
- struct ctdb_req_shutdown r;
- int len;
+ struct ctdb_req_shutdown *r;
/* if the domain socket is not yet open, open it */
if (ctdb->daemon.sd==-1) {
- ux_socket_connect(ctdb);
+ ctdb_socket_connect(ctdb);
}
- len = sizeof(struct ctdb_req_shutdown);
- ZERO_STRUCT(r);
- r.hdr.length = len;
- r.hdr.ctdb_magic = CTDB_MAGIC;
- r.hdr.ctdb_version = CTDB_VERSION;
- r.hdr.operation = CTDB_REQ_SHUTDOWN;
- r.hdr.reqid = 0;
+ r = ctdbd_allocate_pkt(ctdb, ctdb, CTDB_REQ_SHUTDOWN, sizeof(*r),
+ struct ctdb_req_shutdown);
+ CTDB_NO_MEMORY_VOID(ctdb, r);
- ctdb_client_queue_pkt(ctdb, &(r.hdr));
+ ctdb_client_queue_pkt(ctdb, &(r->hdr));
+
+ talloc_free(r);
/* this event loop will terminate once we receive the reply */
while (1) {
}
+struct ctdb_client_control_state {
+ uint32_t reqid;
+ int32_t status;
+ TDB_DATA outdata;
+ enum call_state state;
+};
+
+/*
+ called when a CTDB_REPLY_CONTROL packet comes in in the client
+
+ This packet comes in response to a CTDB_REQ_CONTROL request packet. It
+ contains any reply data from the control
+*/
+static void ctdb_client_reply_control(struct ctdb_context *ctdb,
+ struct ctdb_req_header *hdr)
+{
+ struct ctdb_reply_control *c = (struct ctdb_reply_control *)hdr;
+ struct ctdb_client_control_state *state;
+
+ state = ctdb_reqid_find(ctdb, hdr->reqid, struct ctdb_client_control_state);
+ if (state == NULL) {
+ DEBUG(0,(__location__ " reqid %d not found\n", hdr->reqid));
+ return;
+ }
+
+ if (hdr->reqid != state->reqid) {
+ /* we found a record but it was the wrong one */
+ DEBUG(0, ("Dropped orphaned reply control with reqid:%d\n",hdr->reqid));
+ return;
+ }
+
+ state->outdata.dptr = c->data;
+ state->outdata.dsize = c->datalen;
+ state->status = c->status;
+
+ talloc_steal(state, c);
+
+ state->state = CTDB_CALL_DONE;
+}
+
+
+/*
+ send a ctdb control message
+ */
+int ctdb_control(struct ctdb_context *ctdb, uint32_t destnode, uint64_t srvid,
+ uint32_t opcode, TDB_DATA data,
+ TALLOC_CTX *mem_ctx, TDB_DATA *outdata, int32_t *status)
+{
+ struct ctdb_client_control_state *state;
+ struct ctdb_req_control *c;
+ size_t len;
+ int ret;
+
+ /* if the domain socket is not yet open, open it */
+ if (ctdb->daemon.sd==-1) {
+ ctdb_socket_connect(ctdb);
+ }
+
+ state = talloc_zero(ctdb, struct ctdb_client_control_state);
+ CTDB_NO_MEMORY(ctdb, state);
+
+ state->reqid = ctdb_reqid_new(ctdb, state);
+ state->state = CTDB_CALL_WAIT;
+
+ len = offsetof(struct ctdb_req_control, data) + data.dsize;
+ c = ctdbd_allocate_pkt(ctdb, state, CTDB_REQ_CONTROL,
+ len, struct ctdb_req_control);
+ CTDB_NO_MEMORY(ctdb, c);
+
+ c->hdr.reqid = state->reqid;
+ c->hdr.destnode = destnode;
+ c->hdr.srcnode = ctdb->vnn;
+ c->hdr.reqid = state->reqid;
+ c->opcode = opcode;
+ c->srvid = srvid;
+ c->datalen = data.dsize;
+ if (data.dsize) {
+ memcpy(&c->data[0], data.dptr, data.dsize);
+ }
+
+ ret = ctdb_client_queue_pkt(ctdb, &(c->hdr));
+ if (ret != 0) {
+ talloc_free(state);
+ return -1;
+ }
+
+ /* semi-async operation */
+ while (state->state == CTDB_CALL_WAIT) {
+ event_loop_once(ctdb->ev);
+ }
+
+ if (outdata) {
+ *outdata = state->outdata;
+ outdata->dptr = talloc_memdup(mem_ctx, outdata->dptr, outdata->dsize);
+ }
+
+ *status = state->status;
+
+ talloc_free(state);
+
+ return 0;
+}
+
+
+
+/*
+ a process exists call. Returns 0 if process exists, -1 otherwise
+ */
+int ctdb_process_exists(struct ctdb_context *ctdb, uint32_t destnode, pid_t pid)
+{
+ int ret;
+ TDB_DATA data;
+ int32_t status;
+
+ data.dptr = (uint8_t*)&pid;
+ data.dsize = sizeof(pid);
+
+ ret = ctdb_control(ctdb, destnode, 0,
+ CTDB_CONTROL_PROCESS_EXISTS, data,
+ NULL, NULL, &status);
+ if (ret != 0) {
+ DEBUG(0,(__location__ " ctdb_control for process_exists failed\n"));
+ return -1;
+ }
+
+ return status;
+}
+
+/*
+ get remote status
+ */
+int ctdb_status(struct ctdb_context *ctdb, uint32_t destnode, struct ctdb_status *status)
+{
+ int ret;
+ TDB_DATA data;
+ int32_t res;
+
+ ZERO_STRUCT(data);
+ ret = ctdb_control(ctdb, destnode, 0,
+ CTDB_CONTROL_STATUS, data,
+ ctdb, &data, &res);
+ if (ret != 0 || res != 0) {
+ DEBUG(0,(__location__ " ctdb_control for status failed\n"));
+ return -1;
+ }
+
+ if (data.dsize != sizeof(struct ctdb_status)) {
+ DEBUG(0,(__location__ " Wrong status size %u - expected %u\n",
+ data.dsize, sizeof(struct ctdb_status)));
+ return -1;
+ }
+
+ *status = *(struct ctdb_status *)data.dptr;
+ talloc_free(data.dptr);
+
+ return 0;
+}
+
+/*
+ get vnn map from a remote node
+ */
+int ctdb_getvnnmap(struct ctdb_context *ctdb, uint32_t destnode, struct ctdb_vnn_map *vnnmap)
+{
+ int ret;
+ TDB_DATA data, outdata;
+ int32_t i, res;
+
+ ZERO_STRUCT(data);
+ ret = ctdb_control(ctdb, destnode, 0,
+ CTDB_CONTROL_GETVNNMAP, data,
+ ctdb, &outdata, &res);
+ if (ret != 0 || res != 0) {
+ DEBUG(0,(__location__ " ctdb_control for getvnnmap failed\n"));
+ return -1;
+ }
+
+ vnnmap->generation = ((uint32_t *)outdata.dptr)[0];
+ vnnmap->size = ((uint32_t *)outdata.dptr)[1];
+ if (vnnmap->map) {
+ talloc_free(vnnmap->map);
+ vnnmap->map = NULL;
+ }
+ vnnmap->map = talloc_array(vnnmap, uint32_t, vnnmap->size);
+ for (i=0;i<vnnmap->size;i++) {
+ vnnmap->map[i] = ((uint32_t *)outdata.dptr)[i+2];
+ }
+
+ return 0;
+}
+
+
+/*
+ set vnn map on a node
+ */
+int ctdb_setvnnmap(struct ctdb_context *ctdb, uint32_t destnode, struct ctdb_vnn_map *vnnmap)
+{
+ int ret;
+ TDB_DATA *data, outdata;
+ int32_t i, res;
+
+ data = talloc_zero(ctdb, TDB_DATA);
+ data->dsize = (vnnmap->size+2)*sizeof(uint32_t);
+ data->dptr = (unsigned char *)talloc_array(data, uint32_t, vnnmap->size+2);
+
+ ((uint32_t *)&data->dptr[0])[0] = vnnmap->generation;
+ ((uint32_t *)&data->dptr[0])[1] = vnnmap->size;
+ for (i=0;i<vnnmap->size;i++) {
+ ((uint32_t *)&data->dptr[0])[i+2] = vnnmap->map[i];
+ }
+
+ ret = ctdb_control(ctdb, destnode, 0,
+ CTDB_CONTROL_SETVNNMAP, *data,
+ ctdb, &outdata, &res);
+ if (ret != 0 || res != 0) {
+ DEBUG(0,(__location__ " ctdb_control for setvnnmap failed\n"));
+ return -1;
+ }
+
+ talloc_free(data);
+ return 0;
+}
+
+/*
+ ping a node
+ */
+int ctdb_ping(struct ctdb_context *ctdb, uint32_t destnode)
+{
+ int ret;
+ int32_t res;
+ TDB_DATA data;
+
+ ZERO_STRUCT(data);
+ ret = ctdb_control(ctdb, destnode, 0, CTDB_CONTROL_PING, data, NULL, NULL, &res);
+ if (ret != 0 || res != 0) {
+ return -1;
+ }
+ return 0;
+}
+
+/*
+ get ctdb config
+ */
+int ctdb_get_config(struct ctdb_context *ctdb)
+{
+ int ret;
+ int32_t res;
+ TDB_DATA data;
+ struct ctdb_context c;
+
+ ZERO_STRUCT(data);
+ ret = ctdb_control(ctdb, CTDB_CURRENT_NODE, 0, CTDB_CONTROL_CONFIG, data,
+ ctdb, &data, &res);
+ if (ret != 0 || res != 0) {
+ return -1;
+ }
+ if (data.dsize != sizeof(c)) {
+ DEBUG(0,("Bad config size %u - expected %u\n", data.dsize, sizeof(c)));
+ return -1;
+ }
+
+ c = *(struct ctdb_context *)data.dptr;
+ talloc_free(data.dptr);
+
+ ctdb->num_nodes = c.num_nodes;
+ ctdb->num_connected = c.num_connected;
+ ctdb->vnn = c.vnn;
+ ctdb->max_lacount = c.max_lacount;
+
+ return 0;
+}
+
+/*
+ find the real path to a ltdb
+ */
+int ctdb_getdbpath(struct ctdb_db_context *ctdb_db, TALLOC_CTX *mem_ctx,
+ const char **path)
+{
+ int ret;
+ int32_t res;
+ TDB_DATA data;
+
+ data.dptr = (uint8_t *)&ctdb_db->db_id;
+ data.dsize = sizeof(ctdb_db->db_id);
+
+ ret = ctdb_control(ctdb_db->ctdb, CTDB_CURRENT_NODE, 0,
+ CTDB_CONTROL_GETDBPATH, data,
+ ctdb_db, &data, &res);
+ if (ret != 0 || res != 0) {
+ return -1;
+ }
+
+ (*path) = talloc_strndup(mem_ctx, (const char *)data.dptr, data.dsize);
+ if ((*path) == NULL) {
+ return -1;
+ }
+
+ talloc_free(data.dptr);
+
+ return 0;
+}
+
+/*
+ get debug level on a node
+ */
+int ctdb_get_debuglevel(struct ctdb_context *ctdb, uint32_t destnode, uint32_t *level)
+{
+ int ret;
+ int32_t res;
+ TDB_DATA data;
+
+ ZERO_STRUCT(data);
+ ret = ctdb_control(ctdb, destnode, 0, CTDB_CONTROL_GET_DEBUG, data,
+ ctdb, &data, &res);
+ if (ret != 0 || res != 0) {
+ return -1;
+ }
+ if (data.dsize != sizeof(uint32_t)) {
+ DEBUG(0,("Bad control reply size in ctdb_get_debuglevel (got %u)\n",
+ data.dsize));
+ return -1;
+ }
+ *level = *(uint32_t *)data.dptr;
+ talloc_free(data.dptr);
+ return 0;
+}
+
+/*
+ set debug level on a node
+ */
+int ctdb_set_debuglevel(struct ctdb_context *ctdb, uint32_t destnode, uint32_t level)
+{
+ int ret;
+ int32_t res;
+ TDB_DATA data;
+
+ data.dptr = (uint8_t *)&level;
+ data.dsize = sizeof(level);
+
+ ret = ctdb_control(ctdb, destnode, 0, CTDB_CONTROL_SET_DEBUG, data,
+ NULL, NULL, &res);
+ if (ret != 0 || res != 0) {
+ return -1;
+ }
+ return 0;
+}
git.samba.org / metze / ctdb / wip.git / blobdiff