#include "system/filesys.h"
#include "system/locale.h"
#include <stdlib.h>
-#include "../include/ctdb_private.h"
+#include "include/ctdb_protocol.h"
+#include "include/ctdb_private.h"
#include "lib/util/dlinklist.h"
-pid_t ctdbd_pid;
-/*
- allocate a packet for use in client<->daemon communication
- */
-struct ctdb_req_header *_ctdbd_allocate_pkt(struct ctdb_context *ctdb,
- TALLOC_CTX *mem_ctx,
- enum ctdb_operation operation,
- size_t length, size_t slength,
- const char *type)
-{
- int size;
- struct ctdb_req_header *hdr;
-
- length = MAX(length, slength);
- size = (length+(CTDB_DS_ALIGNMENT-1)) & ~(CTDB_DS_ALIGNMENT-1);
-
- hdr = (struct ctdb_req_header *)talloc_size(mem_ctx, size);
- if (hdr == NULL) {
- DEBUG(DEBUG_ERR,("Unable to allocate packet for operation %u of length %u\n",
- operation, (unsigned)length));
- return NULL;
- }
- talloc_set_name_const(hdr, type);
- memset(hdr, 0, slength);
- hdr->length = length;
- hdr->operation = operation;
- hdr->ctdb_magic = CTDB_MAGIC;
- hdr->ctdb_version = CTDB_VERSION;
- hdr->srcnode = ctdb->pnn;
- if (ctdb->vnn_map) {
- hdr->generation = ctdb->vnn_map->generation;
- }
-
- return hdr;
-}
-
-/*
- local version of ctdb_call
-*/
-int ctdb_call_local(struct ctdb_db_context *ctdb_db, struct ctdb_call *call,
- struct ctdb_ltdb_header *header, TALLOC_CTX *mem_ctx,
- TDB_DATA *data, uint32_t caller)
-{
- struct ctdb_call_info *c;
- struct ctdb_registered_call *fn;
- struct ctdb_context *ctdb = ctdb_db->ctdb;
-
- c = talloc(ctdb, struct ctdb_call_info);
- CTDB_NO_MEMORY(ctdb, c);
-
- c->key = call->key;
- c->call_data = &call->call_data;
- c->record_data.dptr = talloc_memdup(c, data->dptr, data->dsize);
- c->record_data.dsize = data->dsize;
- CTDB_NO_MEMORY(ctdb, c->record_data.dptr);
- c->new_data = NULL;
- c->reply_data = NULL;
- c->status = 0;
-
- for (fn=ctdb_db->calls;fn;fn=fn->next) {
- if (fn->id == call->call_id) break;
- }
- if (fn == NULL) {
- ctdb_set_error(ctdb, "Unknown call id %u\n", call->call_id);
- talloc_free(c);
- return -1;
- }
-
- if (fn->fn(c) != 0) {
- ctdb_set_error(ctdb, "ctdb_call %u failed\n", call->call_id);
- talloc_free(c);
- return -1;
- }
-
- if (header->laccessor != caller) {
- header->lacount = 0;
- }
- header->laccessor = caller;
- header->lacount++;
-
- /* we need to force the record to be written out if this was a remote access,
- so that the lacount is updated */
- if (c->new_data == NULL && header->laccessor != ctdb->pnn) {
- c->new_data = &c->record_data;
- }
-
- if (c->new_data) {
- /* XXX check that we always have the lock here? */
- if (ctdb_ltdb_store(ctdb_db, call->key, header, *c->new_data) != 0) {
- ctdb_set_error(ctdb, "ctdb_call tdb_store failed\n");
- talloc_free(c);
- return -1;
- }
- }
-
- if (c->reply_data) {
- call->reply_data = *c->reply_data;
-
- talloc_steal(call, call->reply_data.dptr);
- talloc_set_name_const(call->reply_data.dptr, __location__);
- } else {
- call->reply_data.dptr = NULL;
- call->reply_data.dsize = 0;
- }
- call->status = c->status;
-
- talloc_free(c);
-
- return 0;
-}
-
-
-/*
- queue a packet for sending from client to daemon
-*/
-static int ctdb_client_queue_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *hdr)
-{
- return ctdb_queue_send(ctdb->daemon.queue, (uint8_t *)hdr, hdr->length);
-}
-
-
-/*
- called when a CTDB_REPLY_CALL packet comes in in the client
-
- This packet comes in response to a CTDB_REQ_CALL request packet. It
- contains any reply data from the call
-*/
-static void ctdb_client_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr)
-{
- struct ctdb_reply_call *c = (struct ctdb_reply_call *)hdr;
- struct ctdb_client_call_state *state;
-
- state = ctdb_reqid_find(ctdb, hdr->reqid, struct ctdb_client_call_state);
- if (state == NULL) {
- DEBUG(DEBUG_ERR,(__location__ " reqid %u not found\n", hdr->reqid));
- return;
- }
-
- if (hdr->reqid != state->reqid) {
- /* we found a record but it was the wrong one */
- DEBUG(DEBUG_ERR, ("Dropped client call reply with reqid:%u\n",hdr->reqid));
- return;
- }
-
- state->call->reply_data.dptr = c->data;
- state->call->reply_data.dsize = c->datalen;
- state->call->status = c->status;
-
- talloc_steal(state, c);
-
- state->state = CTDB_CALL_DONE;
-
- if (state->async.fn) {
- state->async.fn(state);
- }
-}
-
-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
- */
-static void ctdb_client_read_cb(uint8_t *data, size_t cnt, void *args)
-{
- struct ctdb_context *ctdb = talloc_get_type(args, struct ctdb_context);
- struct ctdb_req_header *hdr = (struct ctdb_req_header *)data;
- TALLOC_CTX *tmp_ctx;
-
- /* place the packet as a child of a tmp_ctx. We then use
- talloc_free() below to free it. If any of the calls want
- to keep it, then they will steal it somewhere else, and the
- talloc_free() will be a no-op */
- tmp_ctx = talloc_new(ctdb);
- talloc_steal(tmp_ctx, hdr);
-
- if (cnt == 0) {
- DEBUG(DEBUG_INFO,("Daemon has exited - shutting down client\n"));
- exit(0);
- }
-
- if (cnt < sizeof(*hdr)) {
- DEBUG(DEBUG_CRIT,("Bad packet length %u in client\n", (unsigned)cnt));
- goto done;
- }
- if (cnt != hdr->length) {
- ctdb_set_error(ctdb, "Bad header length %u expected %u in client\n",
- (unsigned)hdr->length, (unsigned)cnt);
- goto done;
- }
-
- if (hdr->ctdb_magic != CTDB_MAGIC) {
- ctdb_set_error(ctdb, "Non CTDB packet rejected in client\n");
- goto done;
- }
-
- if (hdr->ctdb_version != CTDB_VERSION) {
- ctdb_set_error(ctdb, "Bad CTDB version 0x%x rejected in client\n", hdr->ctdb_version);
- goto done;
- }
-
- switch (hdr->operation) {
- case CTDB_REPLY_CALL:
- ctdb_client_reply_call(ctdb, hdr);
- break;
-
- case CTDB_REQ_MESSAGE:
- ctdb_request_message(ctdb, hdr);
- break;
-
- case CTDB_REPLY_CONTROL:
- ctdb_client_reply_control(ctdb, hdr);
- break;
-
- default:
- DEBUG(DEBUG_CRIT,("bogus operation code:%u\n",hdr->operation));
- }
-
-done:
- talloc_free(tmp_ctx);
-}
-
-/*
- connect to a unix domain socket
-*/
-int ctdb_socket_connect(struct ctdb_context *ctdb)
-{
- struct sockaddr_un addr;
-
- memset(&addr, 0, sizeof(addr));
- addr.sun_family = AF_UNIX;
- strncpy(addr.sun_path, ctdb->daemon.name, sizeof(addr.sun_path));
-
- ctdb->daemon.sd = socket(AF_UNIX, SOCK_STREAM, 0);
- if (ctdb->daemon.sd == -1) {
- DEBUG(DEBUG_ERR,(__location__ " Failed to open client socket. Errno:%s(%d)\n", strerror(errno), errno));
- return -1;
- }
-
- set_nonblocking(ctdb->daemon.sd);
- set_close_on_exec(ctdb->daemon.sd);
-
- if (connect(ctdb->daemon.sd, (struct sockaddr *)&addr, sizeof(addr)) == -1) {
- close(ctdb->daemon.sd);
- ctdb->daemon.sd = -1;
- DEBUG(DEBUG_ERR,(__location__ " Failed to connect client socket to daemon. Errno:%s(%d)\n", strerror(errno), errno));
- return -1;
- }
-
- ctdb->daemon.queue = ctdb_queue_setup(ctdb, ctdb, ctdb->daemon.sd,
- CTDB_DS_ALIGNMENT,
- ctdb_client_read_cb, ctdb);
- return 0;
-}
-
-
-struct ctdb_record_handle {
- struct ctdb_db_context *ctdb_db;
- TDB_DATA key;
- TDB_DATA *data;
- struct ctdb_ltdb_header header;
-};
-
-
-/*
- make a recv call to the local ctdb daemon - called from client context
-
- This is called when the program wants to wait for a ctdb_call to complete and get the
- results. This call will block unless the call has already completed.
-*/
-int ctdb_call_recv(struct ctdb_client_call_state *state, struct ctdb_call *call)
-{
- if (state == NULL) {
- return -1;
- }
-
- while (state->state < CTDB_CALL_DONE) {
- event_loop_once(state->ctdb_db->ctdb->ev);
- }
- if (state->state != CTDB_CALL_DONE) {
- DEBUG(DEBUG_ERR,(__location__ " ctdb_call_recv failed\n"));
- talloc_free(state);
- return -1;
- }
-
- if (state->call->reply_data.dsize) {
- call->reply_data.dptr = talloc_memdup(state->ctdb_db,
- state->call->reply_data.dptr,
- state->call->reply_data.dsize);
- call->reply_data.dsize = state->call->reply_data.dsize;
- } else {
- call->reply_data.dptr = NULL;
- call->reply_data.dsize = 0;
- }
- call->status = state->call->status;
- talloc_free(state);
-
- return 0;
-}
-
-
-
-
-/*
- destroy a ctdb_call in client
-*/
-static int ctdb_client_call_destructor(struct ctdb_client_call_state *state)
-{
- ctdb_reqid_remove(state->ctdb_db->ctdb, state->reqid);
- return 0;
-}
-
-/*
- construct an event driven local ctdb_call
-
- this is used so that locally processed ctdb_call requests are processed
- in an event driven manner
-*/
-static struct ctdb_client_call_state *ctdb_client_call_local_send(struct ctdb_db_context *ctdb_db,
- struct ctdb_call *call,
- struct ctdb_ltdb_header *header,
- TDB_DATA *data)
-{
- struct ctdb_client_call_state *state;
- struct ctdb_context *ctdb = ctdb_db->ctdb;
- int ret;
-
- state = talloc_zero(ctdb_db, struct ctdb_client_call_state);
- CTDB_NO_MEMORY_NULL(ctdb, state);
- state->call = talloc_zero(state, struct ctdb_call);
- CTDB_NO_MEMORY_NULL(ctdb, state->call);
-
- talloc_steal(state, data->dptr);
-
- state->state = CTDB_CALL_DONE;
- *(state->call) = *call;
- state->ctdb_db = ctdb_db;
-
- ret = ctdb_call_local(ctdb_db, state->call, header, state, data, ctdb->pnn);
-
- return state;
-}
-
-/*
- make a ctdb call to the local daemon - async send. Called from client context.
-
- This constructs a ctdb_call request and queues it for processing.
- This call never blocks.
-*/
-struct ctdb_client_call_state *ctdb_call_send(struct ctdb_db_context *ctdb_db,
- struct ctdb_call *call)
-{
- struct ctdb_client_call_state *state;
- struct ctdb_context *ctdb = ctdb_db->ctdb;
- struct ctdb_ltdb_header header;
- TDB_DATA data;
- int ret;
- size_t len;
- struct ctdb_req_call *c;
-
- /* if the domain socket is not yet open, open it */
- if (ctdb->daemon.sd==-1) {
- ctdb_socket_connect(ctdb);
- }
-
- ret = ctdb_ltdb_lock(ctdb_db, call->key);
- if (ret != 0) {
- DEBUG(DEBUG_ERR,(__location__ " Failed to get chainlock\n"));
- return NULL;
- }
-
- ret = ctdb_ltdb_fetch(ctdb_db, call->key, &header, ctdb_db, &data);
-
- if (ret == 0 && header.dmaster == ctdb->pnn) {
- state = ctdb_client_call_local_send(ctdb_db, call, &header, &data);
- talloc_free(data.dptr);
- ctdb_ltdb_unlock(ctdb_db, call->key);
- return state;
- }
-
- ctdb_ltdb_unlock(ctdb_db, call->key);
- talloc_free(data.dptr);
-
- state = talloc_zero(ctdb_db, struct ctdb_client_call_state);
- if (state == NULL) {
- DEBUG(DEBUG_ERR, (__location__ " failed to allocate state\n"));
- return NULL;
- }
- state->call = talloc_zero(state, struct ctdb_call);
- if (state->call == NULL) {
- DEBUG(DEBUG_ERR, (__location__ " failed to allocate state->call\n"));
- return NULL;
- }
-
- len = offsetof(struct ctdb_req_call, data) + call->key.dsize + call->call_data.dsize;
- c = ctdbd_allocate_pkt(ctdb, state, CTDB_REQ_CALL, len, struct ctdb_req_call);
- if (c == NULL) {
- DEBUG(DEBUG_ERR, (__location__ " failed to allocate packet\n"));
- return NULL;
- }
-
- state->reqid = ctdb_reqid_new(ctdb, state);
- state->ctdb_db = ctdb_db;
- talloc_set_destructor(state, ctdb_client_call_destructor);
-
- c->hdr.reqid = state->reqid;
- c->flags = call->flags;
- c->db_id = ctdb_db->db_id;
- c->callid = call->call_id;
- c->hopcount = 0;
- c->keylen = call->key.dsize;
- c->calldatalen = call->call_data.dsize;
- memcpy(&c->data[0], call->key.dptr, call->key.dsize);
- memcpy(&c->data[call->key.dsize],
- call->call_data.dptr, call->call_data.dsize);
- *(state->call) = *call;
- state->call->call_data.dptr = &c->data[call->key.dsize];
- state->call->key.dptr = &c->data[0];
-
- state->state = CTDB_CALL_WAIT;
-
-
- ctdb_client_queue_pkt(ctdb, &c->hdr);
-
- return state;
-}
-
-
-/*
- full ctdb_call. Equivalent to a ctdb_call_send() followed by a ctdb_call_recv()
-*/
-int ctdb_call(struct ctdb_db_context *ctdb_db, struct ctdb_call *call)
-{
- struct ctdb_client_call_state *state;
-
- state = ctdb_call_send(ctdb_db, call);
- return ctdb_call_recv(state, call);
-}
-
-
-/*
- 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, uint64_t srvid,
- ctdb_message_fn_t handler,
- void *private_data)
-
-{
- int res;
- int32_t status;
-
- res = ctdb_control(ctdb, CTDB_CURRENT_NODE, srvid, CTDB_CONTROL_REGISTER_SRVID, 0,
- tdb_null, NULL, NULL, &status, NULL, NULL);
- if (res != 0 || status != 0) {
- DEBUG(DEBUG_ERR,("Failed to register srvid %llu\n", (unsigned long long)srvid));
- return -1;
- }
-
- /* also need to register the handler with our own ctdb structure */
- return ctdb_register_message_handler(ctdb, ctdb, srvid, handler, private_data);
-}
-
-/*
- tell the daemon we no longer want a srvid
-*/
-int ctdb_remove_message_handler(struct ctdb_context *ctdb, uint64_t srvid, void *private_data)
-{
- int res;
- int32_t status;
-
- res = ctdb_control(ctdb, CTDB_CURRENT_NODE, srvid, CTDB_CONTROL_DEREGISTER_SRVID, 0,
- tdb_null, NULL, NULL, &status, NULL, NULL);
- if (res != 0 || status != 0) {
- DEBUG(DEBUG_ERR,("Failed to deregister srvid %llu\n", (unsigned long long)srvid));
- return -1;
- }
-
- /* also need to register the handler with our own ctdb structure */
- ctdb_deregister_message_handler(ctdb, srvid, private_data);
- return 0;
-}
-
-
-/*
- send a message - from client context
- */
-int ctdb_send_message(struct ctdb_context *ctdb, uint32_t pnn,
- uint64_t srvid, TDB_DATA data)
-{
- struct ctdb_req_message *r;
- int len, res;
-
- len = offsetof(struct ctdb_req_message, data) + data.dsize;
- r = ctdbd_allocate_pkt(ctdb, ctdb, CTDB_REQ_MESSAGE,
- len, struct ctdb_req_message);
- CTDB_NO_MEMORY(ctdb, r);
-
- r->hdr.destnode = pnn;
- r->srvid = srvid;
- r->datalen = data.dsize;
- memcpy(&r->data[0], data.dptr, data.dsize);
-
- res = ctdb_client_queue_pkt(ctdb, &r->hdr);
- if (res != 0) {
- return res;
- }
-
- talloc_free(r);
- return 0;
-}
-
-
-/*
- cancel a ctdb_fetch_lock operation, releasing the lock
- */
-static int fetch_lock_destructor(struct ctdb_record_handle *h)
-{
- ctdb_ltdb_unlock(h->ctdb_db, h->key);
- return 0;
-}
-
-/*
- force the migration of a record to this node
- */
-static int ctdb_client_force_migration(struct ctdb_db_context *ctdb_db, TDB_DATA key)
-{
- struct ctdb_call call;
- ZERO_STRUCT(call);
- call.call_id = CTDB_NULL_FUNC;
- call.key = key;
- call.flags = CTDB_IMMEDIATE_MIGRATION;
- return ctdb_call(ctdb_db, &call);
-}
-
-/*
- get a lock on a record, and return the records data. Blocks until it gets the lock
- */
-struct ctdb_record_handle *ctdb_fetch_lock(struct ctdb_db_context *ctdb_db, TALLOC_CTX *mem_ctx,
- TDB_DATA key, TDB_DATA *data)
-{
- int ret;
- struct ctdb_record_handle *h;
-
- /*
- procedure is as follows:
-
- 1) get the chain lock.
- 2) check if we are dmaster
- 3) if we are the dmaster then return handle
- 4) if not dmaster then ask ctdb daemon to make us dmaster, and wait for
- reply from ctdbd
- 5) when we get the reply, goto (1)
- */
-
- h = talloc_zero(mem_ctx, struct ctdb_record_handle);
- if (h == NULL) {
- return NULL;
- }
-
- h->ctdb_db = ctdb_db;
- h->key = key;
- h->key.dptr = talloc_memdup(h, key.dptr, key.dsize);
- if (h->key.dptr == NULL) {
- talloc_free(h);
- return NULL;
- }
- h->data = data;
-
- DEBUG(DEBUG_DEBUG,("ctdb_fetch_lock: key=%*.*s\n", (int)key.dsize, (int)key.dsize,
- (const char *)key.dptr));
-
-again:
- /* step 1 - get the chain lock */
- ret = ctdb_ltdb_lock(ctdb_db, key);
- if (ret != 0) {
- DEBUG(DEBUG_ERR, (__location__ " failed to lock ltdb record\n"));
- talloc_free(h);
- return NULL;
- }
-
- DEBUG(DEBUG_DEBUG,("ctdb_fetch_lock: got chain lock\n"));
-
- talloc_set_destructor(h, fetch_lock_destructor);
-
- ret = ctdb_ltdb_fetch(ctdb_db, key, &h->header, h, data);
-
- /* 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(DEBUG_DEBUG,("ctdb_fetch_lock: done local fetch\n"));
-
- if (ret != 0 || h->header.dmaster != ctdb_db->ctdb->pnn) {
- ctdb_ltdb_unlock(ctdb_db, key);
- ret = ctdb_client_force_migration(ctdb_db, key);
- if (ret != 0) {
- DEBUG(DEBUG_DEBUG,("ctdb_fetch_lock: force_migration failed\n"));
- talloc_free(h);
- return NULL;
- }
- goto again;
- }
-
- DEBUG(DEBUG_DEBUG,("ctdb_fetch_lock: we are dmaster - done\n"));
- return h;
-}
-
-/*
- store some data to the record that was locked with ctdb_fetch_lock()
-*/
-int ctdb_record_store(struct ctdb_record_handle *h, TDB_DATA data)
-{
- if (h->ctdb_db->persistent) {
- DEBUG(DEBUG_ERR, (__location__ " ctdb_record_store prohibited for persistent dbs\n"));
- return -1;
- }
-
- return ctdb_ltdb_store(h->ctdb_db, h->key, &h->header, data);
-}
-
/*
non-locking fetch of a record
*/
-/*
- called when a control completes or timesout to invoke the callback
- function the user provided
-*/
-static void invoke_control_callback(struct event_context *ev, struct timed_event *te,
- struct timeval t, void *private_data)
-{
- struct ctdb_client_control_state *state;
- TALLOC_CTX *tmp_ctx = talloc_new(NULL);
- int ret;
-
- state = talloc_get_type(private_data, struct ctdb_client_control_state);
- talloc_steal(tmp_ctx, state);
-
- ret = ctdb_control_recv(state->ctdb, state, state,
- NULL,
- NULL,
- NULL);
-
- talloc_free(tmp_ctx);
-}
-
-/*
- 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(DEBUG_ERR,(__location__ " reqid %u not found\n", hdr->reqid));
- return;
- }
- if (hdr->reqid != state->reqid) {
- /* we found a record but it was the wrong one */
- DEBUG(DEBUG_ERR, ("Dropped orphaned reply control with reqid:%u\n",hdr->reqid));
- return;
- }
-
- state->outdata.dptr = c->data;
- state->outdata.dsize = c->datalen;
- state->status = c->status;
- if (c->errorlen) {
- state->errormsg = talloc_strndup(state,
- (char *)&c->data[c->datalen],
- c->errorlen);
- }
-
- /* state->outdata now uses resources from c so we dont want c
- to just dissappear from under us while state is still alive
- */
- talloc_steal(state, c);
-
- state->state = CTDB_CONTROL_DONE;
-
- /* if we had a callback registered for this control, pull the response
- and call the callback.
- */
- if (state->async.fn) {
- event_add_timed(ctdb->ev, state, timeval_zero(), invoke_control_callback, state);
- }
-}
-
-
-/*
- destroy a ctdb_control in client
-*/
-static int ctdb_control_destructor(struct ctdb_client_control_state *state)
-{
- ctdb_reqid_remove(state->ctdb, state->reqid);
- return 0;
-}
-
-
-/* time out handler for ctdb_control */
-static void control_timeout_func(struct event_context *ev, struct timed_event *te,
- struct timeval t, void *private_data)
-{
- struct ctdb_client_control_state *state = talloc_get_type(private_data, struct ctdb_client_control_state);
-
- DEBUG(DEBUG_ERR,(__location__ " control timed out. reqid:%u opcode:%u "
- "dstnode:%u\n", state->reqid, state->c->opcode,
- state->c->hdr.destnode));
-
- state->state = CTDB_CONTROL_TIMEOUT;
-
- /* if we had a callback registered for this control, pull the response
- and call the callback.
- */
- if (state->async.fn) {
- event_add_timed(state->ctdb->ev, state, timeval_zero(), invoke_control_callback, state);
- }
-}
-
-/* async version of send control request */
-struct ctdb_client_control_state *ctdb_control_send(struct ctdb_context *ctdb,
- uint32_t destnode, uint64_t srvid,
- uint32_t opcode, uint32_t flags, TDB_DATA data,
- TALLOC_CTX *mem_ctx,
- struct timeval *timeout,
- char **errormsg)
-{
- struct ctdb_client_control_state *state;
- size_t len;
- struct ctdb_req_control *c;
- int ret;
-
- if (errormsg) {
- *errormsg = NULL;
- }
-
- /* if the domain socket is not yet open, open it */
- if (ctdb->daemon.sd==-1) {
- ctdb_socket_connect(ctdb);
- }
-
- state = talloc_zero(mem_ctx, struct ctdb_client_control_state);
- CTDB_NO_MEMORY_NULL(ctdb, state);
-
- state->ctdb = ctdb;
- state->reqid = ctdb_reqid_new(ctdb, state);
- state->state = CTDB_CONTROL_WAIT;
- state->errormsg = NULL;
-
- talloc_set_destructor(state, ctdb_control_destructor);
-
- len = offsetof(struct ctdb_req_control, data) + data.dsize;
- c = ctdbd_allocate_pkt(ctdb, state, CTDB_REQ_CONTROL,
- len, struct ctdb_req_control);
- state->c = c;
- CTDB_NO_MEMORY_NULL(ctdb, c);
- c->hdr.reqid = state->reqid;
- c->hdr.destnode = destnode;
- c->opcode = opcode;
- c->client_id = 0;
- c->flags = flags;
- c->srvid = srvid;
- c->datalen = data.dsize;
- if (data.dsize) {
- memcpy(&c->data[0], data.dptr, data.dsize);
- }
-
- /* timeout */
- if (timeout && !timeval_is_zero(timeout)) {
- event_add_timed(ctdb->ev, state, *timeout, control_timeout_func, state);
- }
-
- ret = ctdb_client_queue_pkt(ctdb, &(c->hdr));
- if (ret != 0) {
- talloc_free(state);
- return NULL;
- }
-
- if (flags & CTDB_CTRL_FLAG_NOREPLY) {
- talloc_free(state);
- return NULL;
- }
-
- return state;
-}
-
-
-/* async version of receive control reply */
-int ctdb_control_recv(struct ctdb_context *ctdb,
- struct ctdb_client_control_state *state,
- TALLOC_CTX *mem_ctx,
- TDB_DATA *outdata, int32_t *status, char **errormsg)
-{
- TALLOC_CTX *tmp_ctx;
-
- if (status != NULL) {
- *status = -1;
- }
- if (errormsg != NULL) {
- *errormsg = NULL;
- }
-
- if (state == NULL) {
- return -1;
- }
-
- /* prevent double free of state */
- tmp_ctx = talloc_new(ctdb);
- talloc_steal(tmp_ctx, state);
-
- /* loop one event at a time until we either timeout or the control
- completes.
- */
- while (state->state == CTDB_CONTROL_WAIT) {
- event_loop_once(ctdb->ev);
- }
-
- if (state->state != CTDB_CONTROL_DONE) {
- DEBUG(DEBUG_ERR,(__location__ " ctdb_control_recv failed\n"));
- if (state->async.fn) {
- state->async.fn(state);
- }
- talloc_free(tmp_ctx);
- return -1;
- }
-
- if (state->errormsg) {
- DEBUG(DEBUG_ERR,("ctdb_control error: '%s'\n", state->errormsg));
- if (errormsg) {
- (*errormsg) = talloc_move(mem_ctx, &state->errormsg);
- }
- if (state->async.fn) {
- state->async.fn(state);
- }
- talloc_free(tmp_ctx);
- return -1;
- }
-
- if (outdata) {
- *outdata = state->outdata;
- outdata->dptr = talloc_memdup(mem_ctx, outdata->dptr, outdata->dsize);
- }
-
- if (status) {
- *status = state->status;
- }
-
- if (state->async.fn) {
- state->async.fn(state);
- }
-
- talloc_free(tmp_ctx);
- return 0;
-}
{
struct ctdb_client_control_state *state;
- state = ctdb_control_send(ctdb, destnode, srvid, opcode,
- flags, data, mem_ctx,
- timeout, errormsg);
+ state = ctdb_control_send(ctdb, destnode, srvid, opcode,
+ flags, data, mem_ctx,
+ errormsg);
+ if (state != NULL && timeout && !timeval_is_zero(timeout)) {
+ event_add_timed(ctdb->ev, state, *timeout, ctdb_control_timeout_func, state);
+ }
+
return ctdb_control_recv(ctdb, state, mem_ctx, outdata, status,
errormsg);
}
state = ctdb_control_send(ctdb, destnode, 0,
CTDB_CONTROL_SHUTDOWN, 0, tdb_null,
- NULL, &timeout, NULL);
+ NULL, NULL);
if (state == NULL) {
DEBUG(DEBUG_ERR,(__location__ " ctdb_control for shutdown failed\n"));
return -1;
}
+ if (!timeval_is_zero(&timeout)) {
+ event_add_timed(ctdb->ev, state, timeout, ctdb_control_timeout_func, state);
+ }
return 0;
}
struct ctdb_client_control_state *
ctdb_ctrl_getrecmode_send(struct ctdb_context *ctdb, TALLOC_CTX *mem_ctx, struct timeval timeout, uint32_t destnode)
{
- return ctdb_control_send(ctdb, destnode, 0,
+ struct ctdb_client_control_state *state;
+
+ state = ctdb_control_send(ctdb, destnode, 0,
CTDB_CONTROL_GET_RECMODE, 0, tdb_null,
- mem_ctx, &timeout, NULL);
+ mem_ctx, NULL);
+
+ if (state != NULL && !timeval_is_zero(&timeout)) {
+ event_add_timed(ctdb->ev, state, timeout, ctdb_control_timeout_func, state);
+ }
+
+ return state;
}
int ctdb_ctrl_getrecmode_recv(struct ctdb_context *ctdb, TALLOC_CTX *mem_ctx, struct ctdb_client_control_state *state, uint32_t *recmode)
ctdb_ctrl_getrecmaster_send(struct ctdb_context *ctdb, TALLOC_CTX *mem_ctx,
struct timeval timeout, uint32_t destnode)
{
- return ctdb_control_send(ctdb, destnode, 0,
+ struct ctdb_client_control_state *state;
+
+ state = ctdb_control_send(ctdb, destnode, 0,
CTDB_CONTROL_GET_RECMASTER, 0, tdb_null,
- mem_ctx, &timeout, NULL);
+ mem_ctx, NULL);
+ if (state != NULL && !timeval_is_zero(&timeout)) {
+ event_add_timed(ctdb->ev, state, timeout, ctdb_control_timeout_func, state);
+ }
+
+ return state;
}
int ctdb_ctrl_getrecmaster_recv(struct ctdb_context *ctdb, TALLOC_CTX *mem_ctx, struct ctdb_client_control_state *state, uint32_t *recmaster)
state = ctdb_control_send(ctdb, destnode, 0,
CTDB_CONTROL_PULL_DB, 0, indata,
- mem_ctx, &timeout, NULL);
+ mem_ctx, NULL);
+ if (state != NULL && !timeval_is_zero(&timeout)) {
+ event_add_timed(ctdb->ev, state, timeout, ctdb_control_timeout_func, state);
+ }
+
talloc_free(pull);
return state;
const char **path)
{
int ret;
- int32_t res;
- TDB_DATA data;
+ const char *tmppath = NULL;
+ ctdb_handle *handle;
- data.dptr = (uint8_t *)&dbid;
- data.dsize = sizeof(dbid);
+ handle = ctdb_getdbpath_send(ctdb, destnode, dbid, NULL, NULL);
+ if (handle == NULL) {
+ DEBUG(DEBUG_ERR, (__location__ " Failed to send getdbpath control\n"));
+ return -1;
+ }
- ret = ctdb_control(ctdb, destnode, 0,
- CTDB_CONTROL_GETDBPATH, 0, data,
- mem_ctx, &data, &res, &timeout, NULL);
- if (ret != 0 || res != 0) {
+ if (!timeval_is_zero(&timeout)) {
+ event_add_timed(ctdb->ev, handle, timeout, ctdb_control_timeout_func, handle);
+ }
+
+ ret = ctdb_getdbpath_recv(ctdb, handle, &tmppath);
+ if (ret != 0) {
+ DEBUG(DEBUG_ERR,(__location__ " ctdb control for getdbpath failed\n"));
+ if (tmppath != NULL) {
+ talloc_free(discard_const(tmppath));
+ }
return -1;
}
- (*path) = talloc_strndup(mem_ctx, (const char *)data.dptr, data.dsize);
- if ((*path) == NULL) {
+ if (tmppath == NULL) {
return -1;
}
- talloc_free(data.dptr);
+ *path = talloc_strdup(mem_ctx, (const char *)tmppath);
+ talloc_free(discard_const(tmppath));
+
+ if (*path == NULL) {
+ return -1;
+ }
return 0;
}
/*
create a database
*/
-int ctdb_ctrl_createdb(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode,
- TALLOC_CTX *mem_ctx, const char *name, bool persistent)
+int ctdb_ctrl_createdb(struct ctdb_context *ctdb, struct timeval timeout,
+ uint32_t destnode,
+ const char *name, bool persistent)
{
int ret;
- int32_t res;
- TDB_DATA data;
+ ctdb_handle *handle;
- data.dptr = discard_const(name);
- data.dsize = strlen(name)+1;
+ handle = ctdb_createdb_send(ctdb, destnode, name, persistent, 0, NULL, NULL);
+ if (handle == NULL) {
+ DEBUG(DEBUG_ERR, (__location__ " Failed to send createdb control\n"));
+ return -1;
+ }
- ret = ctdb_control(ctdb, destnode, 0,
- persistent?CTDB_CONTROL_DB_ATTACH_PERSISTENT:CTDB_CONTROL_DB_ATTACH,
- 0, data,
- mem_ctx, &data, &res, &timeout, NULL);
+ if (!timeval_is_zero(&timeout)) {
+ event_add_timed(ctdb->ev, handle, timeout, ctdb_control_timeout_func, handle);
+ }
- if (ret != 0 || res != 0) {
+ ret = ctdb_createdb_recv(ctdb, handle, NULL);
+ if (ret != 0) {
+ DEBUG(DEBUG_ERR,(__location__ " ctdb control for createdb failed\n"));
return -1;
}
return 0;
}
-/*
- this is the dummy null procedure that all databases support
-*/
-static int ctdb_null_func(struct ctdb_call_info *call)
-{
- return 0;
-}
-
-/*
- this is a plain fetch procedure that all databases support
-*/
-static int ctdb_fetch_func(struct ctdb_call_info *call)
-{
- call->reply_data = &call->record_data;
- return 0;
-}
-
-/*
- attach to a specific database - client call
-*/
-struct ctdb_db_context *ctdb_attach(struct ctdb_context *ctdb, const char *name, bool persistent, uint32_t tdb_flags)
-{
- struct ctdb_db_context *ctdb_db;
- TDB_DATA data;
- int ret;
- int32_t res;
-
- ctdb_db = ctdb_db_handle(ctdb, name);
- if (ctdb_db) {
- return ctdb_db;
- }
-
- ctdb_db = talloc_zero(ctdb, struct ctdb_db_context);
- CTDB_NO_MEMORY_NULL(ctdb, ctdb_db);
-
- ctdb_db->ctdb = ctdb;
- ctdb_db->db_name = talloc_strdup(ctdb_db, name);
- CTDB_NO_MEMORY_NULL(ctdb, ctdb_db->db_name);
-
- data.dptr = discard_const(name);
- data.dsize = strlen(name)+1;
-
- /* tell ctdb daemon to attach */
- ret = ctdb_control(ctdb, CTDB_CURRENT_NODE, tdb_flags,
- persistent?CTDB_CONTROL_DB_ATTACH_PERSISTENT:CTDB_CONTROL_DB_ATTACH,
- 0, data, ctdb_db, &data, &res, NULL, NULL);
- if (ret != 0 || res != 0 || data.dsize != sizeof(uint32_t)) {
- DEBUG(DEBUG_ERR,("Failed to attach to database '%s'\n", name));
- talloc_free(ctdb_db);
- return NULL;
- }
-
- ctdb_db->db_id = *(uint32_t *)data.dptr;
- talloc_free(data.dptr);
-
- ret = ctdb_ctrl_getdbpath(ctdb, timeval_current_ofs(2, 0), CTDB_CURRENT_NODE, ctdb_db->db_id, ctdb_db, &ctdb_db->db_path);
- if (ret != 0) {
- DEBUG(DEBUG_ERR,("Failed to get dbpath for database '%s'\n", name));
- talloc_free(ctdb_db);
- return NULL;
- }
-
- tdb_flags = persistent?TDB_DEFAULT:TDB_NOSYNC;
- if (!ctdb->do_setsched) {
- tdb_flags |= TDB_NOMMAP;
- }
- tdb_flags |= TDB_DISALLOW_NESTING;
-
- ctdb_db->ltdb = tdb_wrap_open(ctdb, ctdb_db->db_path, 0, tdb_flags, O_RDWR, 0);
- if (ctdb_db->ltdb == NULL) {
- ctdb_set_error(ctdb, "Failed to open tdb '%s'\n", ctdb_db->db_path);
- talloc_free(ctdb_db);
- return NULL;
- }
-
- ctdb_db->persistent = persistent;
-
- DLIST_ADD(ctdb->db_list, ctdb_db);
-
- /* add well known functions */
- ctdb_set_call(ctdb_db, ctdb_null_func, CTDB_NULL_FUNC);
- ctdb_set_call(ctdb_db, ctdb_fetch_func, CTDB_FETCH_FUNC);
-
- return ctdb_db;
-}
-
-
-/*
- setup a call for a database
- */
-int ctdb_set_call(struct ctdb_db_context *ctdb_db, ctdb_fn_t fn, uint32_t id)
-{
- struct ctdb_registered_call *call;
-
-#if 0
- TDB_DATA data;
- int32_t status;
- struct ctdb_control_set_call c;
- int ret;
-
- /* this is no longer valid with the separate daemon architecture */
- c.db_id = ctdb_db->db_id;
- c.fn = fn;
- c.id = id;
-
- data.dptr = (uint8_t *)&c;
- data.dsize = sizeof(c);
-
- ret = ctdb_control(ctdb_db->ctdb, CTDB_CURRENT_NODE, 0, CTDB_CONTROL_SET_CALL, 0,
- data, NULL, NULL, &status, NULL, NULL);
- if (ret != 0 || status != 0) {
- DEBUG(DEBUG_ERR,("ctdb_set_call failed for call %u\n", id));
- return -1;
- }
-#endif
-
- /* also register locally */
- call = talloc(ctdb_db, struct ctdb_registered_call);
- call->fn = fn;
- call->id = id;
-
- DLIST_ADD(ctdb_db->calls, call);
- return 0;
-}
-
-
struct traverse_state {
bool done;
uint32_t count;
data, NULL, NULL, &status, NULL, NULL);
if (ret != 0 || status != 0) {
DEBUG(DEBUG_ERR,("ctdb_traverse_all failed\n"));
- ctdb_remove_message_handler(ctdb_db->ctdb, srvid, &state);
+ ctdb_remove_message_handler(ctdb_db->ctdb, srvid);
return -1;
}
event_loop_once(ctdb_db->ctdb->ev);
}
- ret = ctdb_remove_message_handler(ctdb_db->ctdb, srvid, &state);
+ ret = ctdb_remove_message_handler(ctdb_db->ctdb, srvid);
if (ret != 0) {
DEBUG(DEBUG_ERR,("Failed to remove ctdb_traverse handler\n"));
return -1;
/*
called on each key during a catdb
*/
-static int dumpdb_fn(struct ctdb_context *ctdb, TDB_DATA key, TDB_DATA data, void *p)
+int ctdb_dumpdb_record(struct ctdb_context *ctdb, TDB_DATA key, TDB_DATA data, void *p)
{
int i;
FILE *f = (FILE *)p;
fprintf(f, "dmaster: %u\n", h->dmaster);
fprintf(f, "rsn: %llu\n", (unsigned long long)h->rsn);
- fprintf(f, "data(%u) = \"", (unsigned)data.dsize);
+ fprintf(f, "data(%u) = \"", (unsigned)(data.dsize - sizeof(*h)));
for (i=sizeof(*h);i<data.dsize;i++) {
if (ISASCII(data.dptr[i])) {
fprintf(f, "%c", data.dptr[i]);
*/
int ctdb_dump_db(struct ctdb_db_context *ctdb_db, FILE *f)
{
- return ctdb_traverse(ctdb_db, dumpdb_fn, f);
+ return ctdb_traverse(ctdb_db, ctdb_dumpdb_record, f);
}
/*
struct ctdb_client_control_state *
ctdb_ctrl_freeze_send(struct ctdb_context *ctdb, TALLOC_CTX *mem_ctx, struct timeval timeout, uint32_t destnode, uint32_t priority)
{
- return ctdb_control_send(ctdb, destnode, priority,
+ struct ctdb_client_control_state *state;
+
+ state = ctdb_control_send(ctdb, destnode, priority,
CTDB_CONTROL_FREEZE, 0, tdb_null,
- mem_ctx, &timeout, NULL);
+ mem_ctx, NULL);
+ if (state != NULL && !timeval_is_zero(&timeout)) {
+ event_add_timed(ctdb->ev, state, timeout, ctdb_control_timeout_func, state);
+ }
+
+ return state;
}
/*
int ctdb_ctrl_getpnn(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode)
{
int ret;
- int32_t res;
+ uint32_t pnn;
+ ctdb_handle *handle;
- ret = ctdb_control(ctdb, destnode, 0,
- CTDB_CONTROL_GET_PNN, 0, tdb_null,
- NULL, NULL, &res, &timeout, NULL);
+ handle = ctdb_getpnn_send(ctdb, destnode, NULL, NULL);
+ if (handle == NULL) {
+ DEBUG(DEBUG_ERR, (__location__ " Failed to send getpnn control\n"));
+ return -1;
+ }
+
+ if (!timeval_is_zero(&timeout)) {
+ event_add_timed(ctdb->ev, handle, timeout, ctdb_control_timeout_func, handle);
+ }
+
+ ret = ctdb_getpnn_recv(ctdb, handle, &pnn);
if (ret != 0) {
- DEBUG(DEBUG_ERR,(__location__ " ctdb_control for getpnn failed\n"));
+ DEBUG(DEBUG_ERR,(__location__ " ctdb control for getpnn failed\n"));
return -1;
}
- return res;
+ return pnn;
}
/*
}
-int ctdb_ctrl_get_public_ips(struct ctdb_context *ctdb,
- struct timeval timeout, uint32_t destnode,
- TALLOC_CTX *mem_ctx, struct ctdb_all_public_ips **ips)
+int ctdb_ctrl_get_public_ips_flags(struct ctdb_context *ctdb,
+ struct timeval timeout, uint32_t destnode,
+ TALLOC_CTX *mem_ctx,
+ uint32_t flags,
+ struct ctdb_all_public_ips **ips)
{
int ret;
TDB_DATA outdata;
int32_t res;
ret = ctdb_control(ctdb, destnode, 0,
- CTDB_CONTROL_GET_PUBLIC_IPS, 0, tdb_null,
+ CTDB_CONTROL_GET_PUBLIC_IPS, flags, tdb_null,
mem_ctx, &outdata, &res, &timeout, NULL);
if (ret == 0 && res == -1) {
DEBUG(DEBUG_ERR,(__location__ " ctdb_control to get public ips failed, falling back to ipv4-only version\n"));
return 0;
}
+int ctdb_ctrl_get_public_ips(struct ctdb_context *ctdb,
+ struct timeval timeout, uint32_t destnode,
+ TALLOC_CTX *mem_ctx,
+ struct ctdb_all_public_ips **ips)
+{
+ return ctdb_ctrl_get_public_ips_flags(ctdb, timeout,
+ destnode, mem_ctx,
+ 0, ips);
+}
+
int ctdb_ctrl_get_public_ipsv4(struct ctdb_context *ctdb,
struct timeval timeout, uint32_t destnode,
TALLOC_CTX *mem_ctx, struct ctdb_all_public_ips **ips)
return 0;
}
+int ctdb_ctrl_get_public_ip_info(struct ctdb_context *ctdb,
+ struct timeval timeout, uint32_t destnode,
+ TALLOC_CTX *mem_ctx,
+ const ctdb_sock_addr *addr,
+ struct ctdb_control_public_ip_info **_info)
+{
+ int ret;
+ TDB_DATA indata;
+ TDB_DATA outdata;
+ int32_t res;
+ struct ctdb_control_public_ip_info *info;
+ uint32_t len;
+ uint32_t i;
+
+ indata.dptr = discard_const_p(uint8_t, addr);
+ indata.dsize = sizeof(*addr);
+
+ ret = ctdb_control(ctdb, destnode, 0,
+ CTDB_CONTROL_GET_PUBLIC_IP_INFO, 0, indata,
+ mem_ctx, &outdata, &res, &timeout, NULL);
+ if (ret != 0 || res != 0) {
+ DEBUG(DEBUG_ERR,(__location__ " ctdb_control for get public ip info "
+ "failed ret:%d res:%d\n",
+ ret, res));
+ return -1;
+ }
+
+ len = offsetof(struct ctdb_control_public_ip_info, ifaces);
+ if (len > outdata.dsize) {
+ DEBUG(DEBUG_ERR,(__location__ " ctdb_control for get public ip info "
+ "returned invalid data with size %u > %u\n",
+ (unsigned int)outdata.dsize,
+ (unsigned int)len));
+ dump_data(DEBUG_DEBUG, outdata.dptr, outdata.dsize);
+ return -1;
+ }
+
+ info = (struct ctdb_control_public_ip_info *)outdata.dptr;
+ len += info->num*sizeof(struct ctdb_control_iface_info);
+
+ if (len > outdata.dsize) {
+ DEBUG(DEBUG_ERR,(__location__ " ctdb_control for get public ip info "
+ "returned invalid data with size %u > %u\n",
+ (unsigned int)outdata.dsize,
+ (unsigned int)len));
+ dump_data(DEBUG_DEBUG, outdata.dptr, outdata.dsize);
+ return -1;
+ }
+
+ /* make sure we null terminate the returned strings */
+ for (i=0; i < info->num; i++) {
+ info->ifaces[i].name[CTDB_IFACE_SIZE] = '\0';
+ }
+
+ *_info = (struct ctdb_control_public_ip_info *)talloc_memdup(mem_ctx,
+ outdata.dptr,
+ outdata.dsize);
+ talloc_free(outdata.dptr);
+ if (*_info == NULL) {
+ DEBUG(DEBUG_ERR,(__location__ " ctdb_control for get public ip info "
+ "talloc_memdup size %u failed\n",
+ (unsigned int)outdata.dsize));
+ return -1;
+ }
+
+ return 0;
+}
+
+int ctdb_ctrl_get_ifaces(struct ctdb_context *ctdb,
+ struct timeval timeout, uint32_t destnode,
+ TALLOC_CTX *mem_ctx,
+ struct ctdb_control_get_ifaces **_ifaces)
+{
+ int ret;
+ TDB_DATA outdata;
+ int32_t res;
+ struct ctdb_control_get_ifaces *ifaces;
+ uint32_t len;
+ uint32_t i;
+
+ ret = ctdb_control(ctdb, destnode, 0,
+ CTDB_CONTROL_GET_IFACES, 0, tdb_null,
+ mem_ctx, &outdata, &res, &timeout, NULL);
+ if (ret != 0 || res != 0) {
+ DEBUG(DEBUG_ERR,(__location__ " ctdb_control for get ifaces "
+ "failed ret:%d res:%d\n",
+ ret, res));
+ return -1;
+ }
+
+ len = offsetof(struct ctdb_control_get_ifaces, ifaces);
+ if (len > outdata.dsize) {
+ DEBUG(DEBUG_ERR,(__location__ " ctdb_control for get ifaces "
+ "returned invalid data with size %u > %u\n",
+ (unsigned int)outdata.dsize,
+ (unsigned int)len));
+ dump_data(DEBUG_DEBUG, outdata.dptr, outdata.dsize);
+ return -1;
+ }
+
+ ifaces = (struct ctdb_control_get_ifaces *)outdata.dptr;
+ len += ifaces->num*sizeof(struct ctdb_control_iface_info);
+
+ if (len > outdata.dsize) {
+ DEBUG(DEBUG_ERR,(__location__ " ctdb_control for get ifaces "
+ "returned invalid data with size %u > %u\n",
+ (unsigned int)outdata.dsize,
+ (unsigned int)len));
+ dump_data(DEBUG_DEBUG, outdata.dptr, outdata.dsize);
+ return -1;
+ }
+
+ /* make sure we null terminate the returned strings */
+ for (i=0; i < ifaces->num; i++) {
+ ifaces->ifaces[i].name[CTDB_IFACE_SIZE] = '\0';
+ }
+
+ *_ifaces = (struct ctdb_control_get_ifaces *)talloc_memdup(mem_ctx,
+ outdata.dptr,
+ outdata.dsize);
+ talloc_free(outdata.dptr);
+ if (*_ifaces == NULL) {
+ DEBUG(DEBUG_ERR,(__location__ " ctdb_control for get ifaces "
+ "talloc_memdup size %u failed\n",
+ (unsigned int)outdata.dsize));
+ return -1;
+ }
+
+ return 0;
+}
+
+int ctdb_ctrl_set_iface_link(struct ctdb_context *ctdb,
+ struct timeval timeout, uint32_t destnode,
+ TALLOC_CTX *mem_ctx,
+ const struct ctdb_control_iface_info *info)
+{
+ int ret;
+ TDB_DATA indata;
+ int32_t res;
+
+ indata.dptr = discard_const_p(uint8_t, info);
+ indata.dsize = sizeof(*info);
+
+ ret = ctdb_control(ctdb, destnode, 0,
+ CTDB_CONTROL_SET_IFACE_LINK_STATE, 0, indata,
+ mem_ctx, NULL, &res, &timeout, NULL);
+ if (ret != 0 || res != 0) {
+ DEBUG(DEBUG_ERR,(__location__ " ctdb_control for set iface link "
+ "failed ret:%d res:%d\n",
+ ret, res));
+ return -1;
+ }
+
+ return 0;
+}
+
/*
set/clear the permanent disabled bit on a remote node
*/
return 0;
}
-/*
- initialise the ctdb daemon for client applications
-
- NOTE: In current code the daemon does not fork. This is for testing purposes only
- and to simplify the code.
-*/
-struct ctdb_context *ctdb_init(struct event_context *ev)
-{
- int ret;
- struct ctdb_context *ctdb;
-
- ctdb = talloc_zero(ev, struct ctdb_context);
- if (ctdb == NULL) {
- DEBUG(DEBUG_ERR,(__location__ " talloc_zero failed.\n"));
- return NULL;
- }
- ctdb->ev = ev;
- ctdb->idr = idr_init(ctdb);
- CTDB_NO_MEMORY_NULL(ctdb, ctdb->idr);
-
- ret = ctdb_set_socketname(ctdb, CTDB_PATH);
- if (ret != 0) {
- DEBUG(DEBUG_ERR,(__location__ " ctdb_set_socketname failed.\n"));
- talloc_free(ctdb);
- return NULL;
- }
-
- return ctdb;
-}
-
-
/*
set some ctdb flags
*/
ctdb->flags |= flags;
}
-/*
- setup the local socket name
-*/
-int ctdb_set_socketname(struct ctdb_context *ctdb, const char *socketname)
-{
- ctdb->daemon.name = talloc_strdup(ctdb, socketname);
- CTDB_NO_MEMORY(ctdb, ctdb->daemon.name);
-
- return 0;
-}
/*
return the pnn of this node
struct ctdb_client_control_state *
ctdb_ctrl_uptime_send(struct ctdb_context *ctdb, TALLOC_CTX *mem_ctx, struct timeval timeout, uint32_t destnode)
{
- return ctdb_control_send(ctdb, destnode, 0,
+ struct ctdb_client_control_state *state;
+
+ state = ctdb_control_send(ctdb, destnode, 0,
CTDB_CONTROL_UPTIME, 0, tdb_null,
- mem_ctx, &timeout, NULL);
+ mem_ctx, NULL);
+ if (state != NULL && !timeval_is_zero(&timeout)) {
+ event_add_timed(ctdb->ev, state, timeout, ctdb_control_timeout_func, state);
+ }
+
+ return state;
}
int ctdb_ctrl_uptime_recv(struct ctdb_context *ctdb, TALLOC_CTX *mem_ctx, struct ctdb_client_control_state *state, struct ctdb_uptime **uptime)
uint32_t pnn = nodes[j];
state = ctdb_control_send(ctdb, pnn, srvid, opcode,
- 0, data, async_data, &timeout, NULL);
+ 0, data, async_data, NULL);
if (state == NULL) {
DEBUG(DEBUG_ERR,(__location__ " Failed to call async control %u\n", (unsigned)opcode));
talloc_free(async_data);
return -1;
}
+ if (!timeval_is_zero(&timeout)) {
+ event_add_timed(ctdb->ev, state, timeout, ctdb_control_timeout_func, state);
+ }
ctdb_client_async_add(async_data, state);
}
struct ctdb_client_control_state *
ctdb_ctrl_getcapabilities_send(struct ctdb_context *ctdb, TALLOC_CTX *mem_ctx, struct timeval timeout, uint32_t destnode)
{
- return ctdb_control_send(ctdb, destnode, 0,
+ struct ctdb_client_control_state *state;
+
+ state = ctdb_control_send(ctdb, destnode, 0,
CTDB_CONTROL_GET_CAPABILITIES, 0, tdb_null,
- mem_ctx, &timeout, NULL);
+ mem_ctx, NULL);
+ if (state != NULL && !timeval_is_zero(&timeout)) {
+ event_add_timed(ctdb->ev, state, timeout, ctdb_control_timeout_func, state);
+ }
+
+ return state;
}
int ctdb_ctrl_getcapabilities_recv(struct ctdb_context *ctdb, TALLOC_CTX *mem_ctx, struct ctdb_client_control_state *state, uint32_t *capabilities)
close(ctdb->daemon.sd);
ctdb->daemon.sd = -1;
- /* the client does not need to be realtime */
- if (ctdb->do_setsched) {
- ctdb_restore_scheduler(ctdb);
- }
-
/* initialise ctdb */
ret = ctdb_socket_connect(ctdb);
if (ret != 0) {
return 0;
}
+
+/* time out handler for ctdb_control */
+void ctdb_control_timeout_func(struct event_context *ev, struct timed_event *te,
+ struct timeval t, void *private_data)
+{
+ struct ctdb_client_control_state *state = talloc_get_type(private_data, struct ctdb_client_control_state);
+
+ DEBUG(DEBUG_ERR,(__location__ " control timed out. reqid:%u opcode:%u "
+ "dstnode:%u\n", state->reqid, state->c->opcode,
+ state->c->hdr.destnode));
+
+ state->state = CTDB_CONTROL_TIMEOUT;
+
+ /* if we had a callback registered for this control, pull the response
+ and call the callback.
+ */
+ if (state->async.fn) {
+ event_add_timed(state->ctdb->ev, state, timeval_zero(), ctdb_invoke_control_callback, state);
+ }
+}
+
git.samba.org / sahlberg / ctdb.git / blobdiff