Annotation of libaitrpc/src/lists.c, revision 1.16
1.2 misho 1: /*************************************************************************
2: * (C) 2010 AITNET ltd - Sofia/Bulgaria - <misho@aitbg.com>
3: * by Michael Pounov <misho@openbsd-bg.org>
4: *
5: * $Author: misho $
1.16 ! misho 6: * $Id: lists.c,v 1.15.22.1 2014/01/28 14:04:57 misho Exp $
1.2 misho 7: *
8: **************************************************************************
9: The ELWIX and AITNET software is distributed under the following
10: terms:
11:
12: All of the documentation and software included in the ELWIX and AITNET
13: Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
14:
1.16 ! misho 15: Copyright 2004 - 2014
1.2 misho 16: by Michael Pounov <misho@elwix.org>. All rights reserved.
17:
18: Redistribution and use in source and binary forms, with or without
19: modification, are permitted provided that the following conditions
20: are met:
21: 1. Redistributions of source code must retain the above copyright
22: notice, this list of conditions and the following disclaimer.
23: 2. Redistributions in binary form must reproduce the above copyright
24: notice, this list of conditions and the following disclaimer in the
25: documentation and/or other materials provided with the distribution.
26: 3. All advertising materials mentioning features or use of this software
27: must display the following acknowledgement:
28: This product includes software developed by Michael Pounov <misho@elwix.org>
29: ELWIX - Embedded LightWeight unIX and its contributors.
30: 4. Neither the name of AITNET nor the names of its contributors
31: may be used to endorse or promote products derived from this software
32: without specific prior written permission.
33:
34: THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND
35: ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
36: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
37: ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
38: FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
39: DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
40: OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
41: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
42: LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
43: OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
44: SUCH DAMAGE.
45: */
46: #include "global.h"
47:
48:
49: /*
1.7 misho 50: * rpc_srv_registerCall() - Register call to RPC server
51: *
1.2 misho 52: * @srv = RPC Server instance
1.10 misho 53: * @tag = Function tag
54: * @funcaddr = Function address
55: * return: -1 error, 0 already registered tag or 1 register ok
1.2 misho 56: */
57: int
1.10 misho 58: rpc_srv_registerCall(rpc_srv_t * __restrict srv, u_short tag, void *funcaddr)
1.2 misho 59: {
60: rpc_func_t *func;
61:
1.10 misho 62: if (!srv || !funcaddr) {
1.7 misho 63: rpc_SetErr(EINVAL, "Invalid parameter can`t register function");
1.2 misho 64: return -1;
65: }
1.10 misho 66:
1.13 misho 67: if (!(func = e_malloc(sizeof(rpc_func_t)))) {
1.2 misho 68: LOGERR;
69: return -1;
1.10 misho 70: } else {
1.2 misho 71: memset(func, 0, sizeof(rpc_func_t));
1.12 misho 72: AIT_KEY(&func->func_name) = tag;
73: }
74:
75: /* search for duplicate */
76: if (AVL_FIND(tagRPCFuncs, &srv->srv_funcs, func)) {
1.13 misho 77: e_free(func);
1.12 misho 78: return 0;
1.2 misho 79: }
80:
1.12 misho 81: func->func_parent = srv;
1.10 misho 82: AIT_SET_PTR(&func->func_name, funcaddr, 0);
1.2 misho 83:
1.7 misho 84: /* add to list of functions */
1.12 misho 85: RPC_FUNCS_LOCK(&srv->srv_funcs);
86: SLIST_INSERT_HEAD(&srv->srv_funcs, func, func_next);
87: AVL_INSERT(tagRPCFuncs, &srv->srv_funcs, func);
88: RPC_FUNCS_UNLOCK(&srv->srv_funcs);
1.10 misho 89: return 1;
1.2 misho 90: }
91:
92: /*
1.7 misho 93: * rpc_srv_unregisterCall() - Unregister call from RPC server
94: *
1.2 misho 95: * @srv = RPC Server instance
1.10 misho 96: * @tag = Function tag
1.2 misho 97: * return: -1 error, 0 not found call, 1 unregister ok
98: */
99: int
1.10 misho 100: rpc_srv_unregisterCall(rpc_srv_t * __restrict srv, u_short tag)
1.2 misho 101: {
1.10 misho 102: rpc_func_t *f;
1.2 misho 103:
1.10 misho 104: if (!srv) {
1.7 misho 105: rpc_SetErr(EINVAL, "Invalid parameter can`t unregister function");
1.2 misho 106: return -1;
1.10 misho 107: }
1.2 misho 108:
1.10 misho 109: f = rpc_srv_getCall(srv, tag);
1.9 misho 110: if (!f) /* not found element for unregister */
1.2 misho 111: return 0;
112:
1.12 misho 113: RPC_FUNCS_LOCK(&srv->srv_funcs);
114: AVL_REMOVE(tagRPCFuncs, &srv->srv_funcs, f);
115: SLIST_REMOVE(&srv->srv_funcs, f, tagRPCFunc, func_next);
116: RPC_FUNCS_UNLOCK(&srv->srv_funcs);
1.10 misho 117:
1.7 misho 118: AIT_FREE_VAL(&f->func_name);
1.13 misho 119: e_free(f);
1.2 misho 120: return 1;
121: }
122:
123: /*
1.7 misho 124: * rpc_srv_getCall() - Get registered call from RPC server
125: *
1.2 misho 126: * @srv = RPC Server instance
127: * @tag = tag for function
128: * return: NULL not found call, !=NULL return call
129: */
1.14 misho 130: rpc_func_t *
1.10 misho 131: rpc_srv_getCall(rpc_srv_t * __restrict srv, uint16_t tag)
1.2 misho 132: {
1.12 misho 133: rpc_func_t tmp;
1.2 misho 134:
135: if (!srv) {
1.7 misho 136: rpc_SetErr(EINVAL, "Invalid parameter can`t get function");
1.2 misho 137: return NULL;
1.12 misho 138: } else
139: memset(&tmp, 0, sizeof tmp);
1.2 misho 140:
1.12 misho 141: AIT_KEY(&tmp.func_name) = tag;
142: return AVL_FIND(tagRPCFuncs, &srv->srv_funcs, &tmp);
1.2 misho 143: }
144:
1.10 misho 145: /* --------------------------------------------------------- */
1.2 misho 146:
147: /*
1.7 misho 148: * rpc_srv_getBLOB() - Get registered BLOB
149: *
1.2 misho 150: * @srv = RPC Server instance
151: * @var = hash for variable
152: * return: NULL not found, !=NULL return blob var
153: */
1.14 misho 154: rpc_blob_t *
1.2 misho 155: rpc_srv_getBLOB(rpc_srv_t * __restrict srv, uint32_t var)
156: {
1.10 misho 157: rpc_blob_t *b, *tmp;
1.2 misho 158:
159: if (!srv) {
1.7 misho 160: rpc_SetErr(EINVAL, "Invalid parameter can`t get BLOB variable");
1.2 misho 161: return NULL;
162: }
163:
1.10 misho 164: TAILQ_FOREACH_SAFE(b, &srv->srv_blob.blobs, blob_node, tmp)
1.2 misho 165: if (b->blob_var == var)
166: break;
167:
168: return b;
169: }
170:
171: /*
1.7 misho 172: * rpc_srv_registerBLOB() - Register new BLOB to server
173: *
1.2 misho 174: * @srv = RPC Server instance
175: * @len = BLOB length
1.15 misho 176: * @tout = BLOB live timeout in seconds
1.2 misho 177: * return: NULL error or new registered BLOB
178: */
179: rpc_blob_t *
1.15 misho 180: rpc_srv_registerBLOB(rpc_srv_t * __restrict srv, size_t len, int tout)
1.2 misho 181: {
182: rpc_blob_t *blob = NULL;
183:
184: if (!srv || !len) {
1.7 misho 185: rpc_SetErr(EINVAL, "Invalid parameter can`t register BLOB variable");
1.2 misho 186: return blob;
187: }
188:
1.15 misho 189: blob = rpc_srv_blobCreate(srv, len, tout);
1.2 misho 190:
1.10 misho 191: TAILQ_INSERT_TAIL(&srv->srv_blob.blobs, blob, blob_node);
1.15 misho 192:
1.2 misho 193: return blob;
194: }
195:
196: /*
1.7 misho 197: * rpc_srv_unregisterBLOB() - Unregister BLOB from server
198: *
1.2 misho 199: * @srv = RPC Server instance
200: * @var = BLOB Variable for unregister
201: * return: -1 error, 0 not found call, 1 unregister ok
202: */
203: int
204: rpc_srv_unregisterBLOB(rpc_srv_t * __restrict srv, uint32_t var)
205: {
1.10 misho 206: rpc_blob_t *b;
1.2 misho 207:
208: if (!srv) {
1.7 misho 209: rpc_SetErr(EINVAL, "Invalid parameter can`t unregister BLOB variable");
1.2 misho 210: return -1;
211: }
212:
213: b = rpc_srv_getBLOB(srv, var);
1.3 misho 214: if (!b) /* not found element for unregister */
1.2 misho 215: return 0;
216:
1.10 misho 217: TAILQ_REMOVE(&srv->srv_blob.blobs, b, blob_node);
218:
1.2 misho 219: rpc_srv_blobFree(srv, b);
1.13 misho 220: e_free(b);
1.2 misho 221: return 1;
222: }
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