File:
[ELWIX - Embedded LightWeight unIX -] /
libaitrpc /
src /
lists.c
Revision
1.18:
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Thu Jul 2 22:28:15 2015 UTC (8 years, 11 months ago) by
misho
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MAIN
CVS tags:
rpc9_6,
rpc9_5,
rpc9_4,
rpc9_3,
rpc9_2,
RPC9_5,
RPC9_4,
RPC9_3,
RPC9_2,
RPC9_1,
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version 9.1
1: /*************************************************************************
2: * (C) 2010 AITNET ltd - Sofia/Bulgaria - <misho@aitbg.com>
3: * by Michael Pounov <misho@openbsd-bg.org>
4: *
5: * $Author: misho $
6: * $Id: lists.c,v 1.18 2015/07/02 22:28:15 misho Exp $
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:
15: Copyright 2004 - 2015
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: #pragma GCC visibility push(hidden)
50:
51: static int
52: rpc_funcs_cmp(struct tagRPCFunc *a, struct tagRPCFunc *b)
53: {
54: int ret;
55:
56: assert(a && b);
57:
58: ret = AIT_KEY(&a->func_name) - AIT_KEY(&b->func_name);
59:
60: if (ret < 0)
61: return -1;
62: else if (ret > 0)
63: return 1;
64:
65: return ret;
66: }
67:
68: AVL_GENERATE(tagRPCFuncs, tagRPCFunc, func_node, rpc_funcs_cmp);
69:
70: #pragma GCC visibility pop
71:
72: /*
73: * rpc_srv_registerCall() - Register call to RPC server
74: *
75: * @srv = RPC Server instance
76: * @tag = Function tag
77: * @funcaddr = Function address
78: * return: -1 error, 0 already registered tag or 1 register ok
79: */
80: int
81: rpc_srv_registerCall(rpc_srv_t * __restrict srv, u_short tag, void *funcaddr)
82: {
83: rpc_func_t *func;
84:
85: if (!srv || !funcaddr) {
86: rpc_SetErr(EINVAL, "Invalid parameter can`t register function");
87: return -1;
88: }
89:
90: if (!(func = e_malloc(sizeof(rpc_func_t)))) {
91: LOGERR;
92: return -1;
93: } else {
94: memset(func, 0, sizeof(rpc_func_t));
95: AIT_KEY(&func->func_name) = tag;
96: }
97:
98: /* search for duplicate */
99: if (AVL_FIND(tagRPCFuncs, &srv->srv_funcs, func)) {
100: e_free(func);
101: return 0;
102: }
103:
104: func->func_parent = srv;
105: AIT_SET_PTR(&func->func_name, funcaddr, 0);
106:
107: /* add to list of functions */
108: RPC_FUNCS_LOCK(&srv->srv_funcs);
109: SLIST_INSERT_HEAD(&srv->srv_funcs, func, func_next);
110: AVL_INSERT(tagRPCFuncs, &srv->srv_funcs, func);
111: RPC_FUNCS_UNLOCK(&srv->srv_funcs);
112: return 1;
113: }
114:
115: /*
116: * rpc_srv_unregisterCall() - Unregister call from RPC server
117: *
118: * @srv = RPC Server instance
119: * @tag = Function tag
120: * return: -1 error, 0 not found call, 1 unregister ok
121: */
122: int
123: rpc_srv_unregisterCall(rpc_srv_t * __restrict srv, u_short tag)
124: {
125: rpc_func_t *f;
126:
127: if (!srv) {
128: rpc_SetErr(EINVAL, "Invalid parameter can`t unregister function");
129: return -1;
130: }
131:
132: f = rpc_srv_getCall(srv, tag);
133: if (!f) /* not found element for unregister */
134: return 0;
135:
136: RPC_FUNCS_LOCK(&srv->srv_funcs);
137: AVL_REMOVE(tagRPCFuncs, &srv->srv_funcs, f);
138: SLIST_REMOVE(&srv->srv_funcs, f, tagRPCFunc, func_next);
139: RPC_FUNCS_UNLOCK(&srv->srv_funcs);
140:
141: AIT_FREE_VAL(&f->func_name);
142: e_free(f);
143: return 1;
144: }
145:
146: /*
147: * rpc_srv_getCall() - Get registered call from RPC server
148: *
149: * @srv = RPC Server instance
150: * @tag = tag for function
151: * return: NULL not found call, !=NULL return call
152: */
153: rpc_func_t *
154: rpc_srv_getCall(rpc_srv_t * __restrict srv, uint16_t tag)
155: {
156: rpc_func_t tmp;
157:
158: if (!srv) {
159: rpc_SetErr(EINVAL, "Invalid parameter can`t get function");
160: return NULL;
161: } else
162: memset(&tmp, 0, sizeof tmp);
163:
164: AIT_KEY(&tmp.func_name) = tag;
165: return AVL_FIND(tagRPCFuncs, &srv->srv_funcs, &tmp);
166: }
167:
168: /* --------------------------------------------------------- */
169:
170: /*
171: * rpc_srv_getBLOB() - Get registered BLOB
172: *
173: * @srv = RPC Server instance
174: * @var = hash for variable
175: * return: NULL not found, !=NULL return blob var
176: */
177: rpc_blob_t *
178: rpc_srv_getBLOB(rpc_srv_t * __restrict srv, uint32_t var)
179: {
180: rpc_blob_t *b, *tmp;
181:
182: if (!srv) {
183: rpc_SetErr(EINVAL, "Invalid parameter can`t get BLOB variable");
184: return NULL;
185: }
186:
187: TAILQ_FOREACH_SAFE(b, &srv->srv_blob.blobs, blob_node, tmp)
188: if (b->blob_var == var)
189: break;
190:
191: return b;
192: }
193:
194: /*
195: * rpc_srv_registerBLOB() - Register new BLOB to server
196: *
197: * @srv = RPC Server instance
198: * @len = BLOB length
199: * @tout = BLOB live timeout in seconds
200: * return: NULL error or new registered BLOB
201: */
202: rpc_blob_t *
203: rpc_srv_registerBLOB(rpc_srv_t * __restrict srv, size_t len, int tout)
204: {
205: rpc_blob_t *blob = NULL;
206:
207: if (!srv || !len) {
208: rpc_SetErr(EINVAL, "Invalid parameter can`t register BLOB variable");
209: return blob;
210: }
211:
212: blob = rpc_srv_blobCreate(srv, len, tout);
213:
214: TAILQ_INSERT_TAIL(&srv->srv_blob.blobs, blob, blob_node);
215:
216: return blob;
217: }
218:
219: /*
220: * rpc_srv_unregisterBLOB() - Unregister BLOB from server
221: *
222: * @srv = RPC Server instance
223: * @var = BLOB Variable for unregister
224: * return: -1 error, 0 not found call, 1 unregister ok
225: */
226: int
227: rpc_srv_unregisterBLOB(rpc_srv_t * __restrict srv, uint32_t var)
228: {
229: rpc_blob_t *b;
230:
231: if (!srv) {
232: rpc_SetErr(EINVAL, "Invalid parameter can`t unregister BLOB variable");
233: return -1;
234: }
235:
236: b = rpc_srv_getBLOB(srv, var);
237: if (!b) /* not found element for unregister */
238: return 0;
239:
240: TAILQ_REMOVE(&srv->srv_blob.blobs, b, blob_node);
241:
242: rpc_srv_blobFree(srv, b);
243: e_free(b);
244: return 1;
245: }
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