diff options
Diffstat (limited to 'ctdb/ib/ibw_ctdb.c')
-rw-r--r-- | ctdb/ib/ibw_ctdb.c | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/ctdb/ib/ibw_ctdb.c b/ctdb/ib/ibw_ctdb.c new file mode 100644 index 00000000000..4379cb75086 --- /dev/null +++ b/ctdb/ib/ibw_ctdb.c @@ -0,0 +1,105 @@ +/* + * Unix SMB/CIFS implementation. + * Join infiniband wrapper and ctdb. + * + * Copyright (C) Sven Oehme <oehmes@de.ibm.com> 2006 + * + * Major code contributions by Peter Somogyi <psomogyi@gamax.hu> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include "includes.h" +#include "lib/events/events.h" +#include <system/network.h> +#include <assert.h> +#include "ctdb_private.h" +#include "ibwrapper.h" +#include "ibw_ctdb.h" + +int ctdb_ibw_connstate_handler(struct ibw_ctx *ctx, struct ibw_conn *conn) +{ + if (ctx!=NULL) { + /* ctx->state changed */ + switch(ctx->state) { + case IBWS_INIT: /* ctx start - after ibw_init */ + break; + case IBWS_READY: /* after ibw_bind & ibw_listen */ + break; + case IBWS_CONNECT_REQUEST: /* after [IBWS_READY + incoming request] */ + /* => [(ibw_accept)IBWS_READY | (ibw_disconnect)STOPPED | ERROR] */ + if (ibw_accept(ctx, conn, NULL)) { + DEBUG(0, ("connstate_handler/ibw_accept failed\n")); + return -1; + } /* else continue in IBWC_CONNECTED */ + break; + case IBWS_STOPPED: /* normal stop <= ibw_disconnect+(IBWS_READY | IBWS_CONNECT_REQUEST) */ + /* TODO: have a CTDB upcall for which CTDB should wait in a (final) loop */ + break; + case IBWS_ERROR: /* abnormal state; ibw_stop must be called after this */ + break; + default: + assert(0); + break; + } + } + + if (conn!=NULL) { + /* conn->state changed */ + switch(conn->state) { + case IBWC_INIT: /* conn start - internal state */ + break; + case IBWC_CONNECTED: { /* after ibw_accept or ibw_connect */ + struct ctdb_node *node = talloc_get_type(conn->conn_userdata, struct ctdb_node); + if (node!=NULL) /* after ibw_connect */ + node->ctdb->upcalls->node_connected(node); + else { /* after ibw_accept */ + /* NOP in CTDB case */ + } + } break; + case IBWC_DISCONNECTED: /* after ibw_disconnect */ + /* TODO: have a CTDB upcall */ + break; + case IBWC_ERROR: { + struct ctdb_node *node = talloc_get_type(conn->conn_userdata, struct ctdb_node); + if (node!=NULL) + node->ctdb->upcalls->node_connected(node); + } break; + default: + assert(0); + break; + } + } + + return 0; +} + +int ctdb_ibw_receive_handler(struct ibw_conn *conn, void *buf, int n) +{ + struct ctdb_context *ctdb = talloc_get_type(conn->ctx->ctx_userdata, struct ctdb_context); + + assert(ctdb!=NULL); + assert(conn->state==IBWC_CONNECTED); + + /* TODO: shall I short-circuit this in ibwrapper? */ + /* maybe when everything go fine... */ + + /* TODO2: !!! here I can provide conn->conn_userdata (with no perf. penalty) - + * as struct ctdb_node in case the connection + * has been built up by ibw_connect !!! */ + ctdb->upcalls->recv_pkt(ctdb, (uint8_t *)buf, (uint32_t)n); + + return 0; +} |