--- libaitrpc/src/lists.c 2010/06/23 11:34:48 1.1.2.1 +++ libaitrpc/src/lists.c 2012/05/15 22:47:10 1.9.2.1 @@ -1,3 +1,236 @@ +/************************************************************************* +* (C) 2010 AITNET ltd - Sofia/Bulgaria - +* by Michael Pounov +* +* $Author: misho $ +* $Id: lists.c,v 1.9.2.1 2012/05/15 22:47:10 misho Exp $ +* +************************************************************************** +The ELWIX and AITNET software is distributed under the following +terms: + +All of the documentation and software included in the ELWIX and AITNET +Releases is copyrighted by ELWIX - Sofia/Bulgaria + +Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 + by Michael Pounov . All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions +are met: +1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. +2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. +3. All advertising materials mentioning features or use of this software + must display the following acknowledgement: +This product includes software developed by Michael Pounov +ELWIX - Embedded LightWeight unIX and its contributors. +4. Neither the name of AITNET nor the names of its contributors + may be used to endorse or promote products derived from this software + without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +SUCH DAMAGE. +*/ #include "global.h" +/* + * rpc_srv_registerCall() - Register call to RPC server + * + * @srv = RPC Server instance + * @tag = Function tag + * @funcaddr = Function address + * @args = Number of return function arguments + * return: -1 error, 0 already registered tag or 1 register ok + */ +int +rpc_srv_registerCall(rpc_srv_t * __restrict srv, u_short tag, void *funcaddr, u_short args) +{ + rpc_func_t *func; + + if (!srv || !funcaddr) { + rpc_SetErr(EINVAL, "Invalid parameter can`t register function"); + return -1; + } else { + /* search for duplicate */ + TAILQ_FOREACH(func, &srv->srv_funcs, func_node) + if (AIT_KEY(&func->func_name) == tag) + return 0; + } + + if (!(func = malloc(sizeof(rpc_func_t)))) { + LOGERR; + return -1; + } else { + memset(func, 0, sizeof(rpc_func_t)); + func->func_parent = srv; + } + + AIT_KEY(&func->func_name) = tag; + AIT_SET_PTR(&func->func_name, funcaddr, 0); + + /* allocate return variables */ + if (args > 0 && !(func->func_vars = io_allocVars(args))) { + AIT_FREE_VAL(&func->func_name); + free(func); + return -1; + } + + /* add to list of functions */ + TAILQ_INSERT_TAIL(&srv->srv_funcs, func, func_node); + return 1; +} + +/* + * rpc_srv_unregisterCall() - Unregister call from RPC server + * + * @srv = RPC Server instance + * @tag = Function tag + * return: -1 error, 0 not found call, 1 unregister ok + */ +int +rpc_srv_unregisterCall(rpc_srv_t * __restrict srv, u_short tag) +{ + rpc_func_t *f; + + if (!srv) { + rpc_SetErr(EINVAL, "Invalid parameter can`t unregister function"); + return -1; + } + + f = rpc_srv_getCall(srv, tag); + if (!f) /* not found element for unregister */ + return 0; + + TAILQ_REMOVE(&srv->srv_funcs, f, func_node); + + io_freeVars(&f->func_vars); + AIT_FREE_VAL(&f->func_name); + free(f); + return 1; +} + +/* + * rpc_srv_getCall() - Get registered call from RPC server + * + * @srv = RPC Server instance + * @tag = tag for function + * return: NULL not found call, !=NULL return call + */ +inline rpc_func_t * +rpc_srv_getCall(rpc_srv_t * __restrict srv, uint16_t tag) +{ + rpc_func_t *f, *tmp; + + if (!srv) { + rpc_SetErr(EINVAL, "Invalid parameter can`t get function"); + return NULL; + } + + TAILQ_FOREACH_SAFE(f, &srv->srv_funcs, func_node, tmp) + if (AIT_KEY(&f->func_name) == tag) + break; + + return f; +} + +/* --------------------------------------------------------- */ + +/* + * rpc_srv_getBLOB() - Get registered BLOB + * + * @srv = RPC Server instance + * @var = hash for variable + * return: NULL not found, !=NULL return blob var + */ +inline rpc_blob_t * +rpc_srv_getBLOB(rpc_srv_t * __restrict srv, uint32_t var) +{ + rpc_blob_t *b; + + if (!srv) { + rpc_SetErr(EINVAL, "Invalid parameter can`t get BLOB variable"); + return NULL; + } + + for (b = srv->srv_blob.blobs; b; b = b->blob_next) { + if (b->blob_var == var) + break; + } + + return b; +} + +/* + * rpc_srv_registerBLOB() - Register new BLOB to server + * + * @srv = RPC Server instance + * @len = BLOB length + * return: NULL error or new registered BLOB + */ +rpc_blob_t * +rpc_srv_registerBLOB(rpc_srv_t * __restrict srv, size_t len) +{ + rpc_blob_t *blob = NULL; + + if (!srv || !len) { + rpc_SetErr(EINVAL, "Invalid parameter can`t register BLOB variable"); + return blob; + } + + blob = rpc_srv_blobCreate(srv, len); + if (blob) { + blob->blob_next = srv->srv_blob.blobs; + srv->srv_blob.blobs = blob; + } + + return blob; +} + +/* + * rpc_srv_unregisterBLOB() - Unregister BLOB from server + * + * @srv = RPC Server instance + * @var = BLOB Variable for unregister + * return: -1 error, 0 not found call, 1 unregister ok + */ +int +rpc_srv_unregisterBLOB(rpc_srv_t * __restrict srv, uint32_t var) +{ + rpc_blob_t *b, *curr; + + if (!srv) { + rpc_SetErr(EINVAL, "Invalid parameter can`t unregister BLOB variable"); + return -1; + } + + b = rpc_srv_getBLOB(srv, var); + if (!b) /* not found element for unregister */ + return 0; + /* if BLOB is unmapped force to unmap object */ + if (b->blob_data) + rpc_srv_blobUnmap(b); + + if (srv->srv_blob.blobs == b) { /* if is 1st element */ + srv->srv_blob.blobs = srv->srv_blob.blobs->blob_next; + } else { + for (curr = srv->srv_blob.blobs; curr->blob_next != b; curr = curr->blob_next); + curr->blob_next = curr->blob_next->blob_next; + } + rpc_srv_blobFree(srv, b); + free(b); + + return 1; +}