Annotation of libaitrpc/src/lists.c, revision 1.17.4.1
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 $
1.17.4.1! misho 6: * $Id: lists.c,v 1.17 2015/01/21 21:17:05 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:
1.17 misho 15: Copyright 2004 - 2015
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:
1.17.4.1! misho 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:
1.2 misho 72: /*
1.7 misho 73: * rpc_srv_registerCall() - Register call to RPC server
74: *
1.2 misho 75: * @srv = RPC Server instance
1.10 misho 76: * @tag = Function tag
77: * @funcaddr = Function address
78: * return: -1 error, 0 already registered tag or 1 register ok
1.2 misho 79: */
80: int
1.10 misho 81: rpc_srv_registerCall(rpc_srv_t * __restrict srv, u_short tag, void *funcaddr)
1.2 misho 82: {
83: rpc_func_t *func;
84:
1.10 misho 85: if (!srv || !funcaddr) {
1.7 misho 86: rpc_SetErr(EINVAL, "Invalid parameter can`t register function");
1.2 misho 87: return -1;
88: }
1.10 misho 89:
1.13 misho 90: if (!(func = e_malloc(sizeof(rpc_func_t)))) {
1.2 misho 91: LOGERR;
92: return -1;
1.10 misho 93: } else {
1.2 misho 94: memset(func, 0, sizeof(rpc_func_t));
1.12 misho 95: AIT_KEY(&func->func_name) = tag;
96: }
97:
98: /* search for duplicate */
99: if (AVL_FIND(tagRPCFuncs, &srv->srv_funcs, func)) {
1.13 misho 100: e_free(func);
1.12 misho 101: return 0;
1.2 misho 102: }
103:
1.12 misho 104: func->func_parent = srv;
1.10 misho 105: AIT_SET_PTR(&func->func_name, funcaddr, 0);
1.2 misho 106:
1.7 misho 107: /* add to list of functions */
1.12 misho 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);
1.10 misho 112: return 1;
1.2 misho 113: }
114:
115: /*
1.7 misho 116: * rpc_srv_unregisterCall() - Unregister call from RPC server
117: *
1.2 misho 118: * @srv = RPC Server instance
1.10 misho 119: * @tag = Function tag
1.2 misho 120: * return: -1 error, 0 not found call, 1 unregister ok
121: */
122: int
1.10 misho 123: rpc_srv_unregisterCall(rpc_srv_t * __restrict srv, u_short tag)
1.2 misho 124: {
1.10 misho 125: rpc_func_t *f;
1.2 misho 126:
1.10 misho 127: if (!srv) {
1.7 misho 128: rpc_SetErr(EINVAL, "Invalid parameter can`t unregister function");
1.2 misho 129: return -1;
1.10 misho 130: }
1.2 misho 131:
1.10 misho 132: f = rpc_srv_getCall(srv, tag);
1.9 misho 133: if (!f) /* not found element for unregister */
1.2 misho 134: return 0;
135:
1.12 misho 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);
1.10 misho 140:
1.7 misho 141: AIT_FREE_VAL(&f->func_name);
1.13 misho 142: e_free(f);
1.2 misho 143: return 1;
144: }
145:
146: /*
1.7 misho 147: * rpc_srv_getCall() - Get registered call from RPC server
148: *
1.2 misho 149: * @srv = RPC Server instance
150: * @tag = tag for function
151: * return: NULL not found call, !=NULL return call
152: */
1.14 misho 153: rpc_func_t *
1.10 misho 154: rpc_srv_getCall(rpc_srv_t * __restrict srv, uint16_t tag)
1.2 misho 155: {
1.12 misho 156: rpc_func_t tmp;
1.2 misho 157:
158: if (!srv) {
1.7 misho 159: rpc_SetErr(EINVAL, "Invalid parameter can`t get function");
1.2 misho 160: return NULL;
1.12 misho 161: } else
162: memset(&tmp, 0, sizeof tmp);
1.2 misho 163:
1.12 misho 164: AIT_KEY(&tmp.func_name) = tag;
165: return AVL_FIND(tagRPCFuncs, &srv->srv_funcs, &tmp);
1.2 misho 166: }
167:
1.10 misho 168: /* --------------------------------------------------------- */
1.2 misho 169:
170: /*
1.7 misho 171: * rpc_srv_getBLOB() - Get registered BLOB
172: *
1.2 misho 173: * @srv = RPC Server instance
174: * @var = hash for variable
175: * return: NULL not found, !=NULL return blob var
176: */
1.14 misho 177: rpc_blob_t *
1.2 misho 178: rpc_srv_getBLOB(rpc_srv_t * __restrict srv, uint32_t var)
179: {
1.10 misho 180: rpc_blob_t *b, *tmp;
1.2 misho 181:
182: if (!srv) {
1.7 misho 183: rpc_SetErr(EINVAL, "Invalid parameter can`t get BLOB variable");
1.2 misho 184: return NULL;
185: }
186:
1.10 misho 187: TAILQ_FOREACH_SAFE(b, &srv->srv_blob.blobs, blob_node, tmp)
1.2 misho 188: if (b->blob_var == var)
189: break;
190:
191: return b;
192: }
193:
194: /*
1.7 misho 195: * rpc_srv_registerBLOB() - Register new BLOB to server
196: *
1.2 misho 197: * @srv = RPC Server instance
198: * @len = BLOB length
1.15 misho 199: * @tout = BLOB live timeout in seconds
1.2 misho 200: * return: NULL error or new registered BLOB
201: */
202: rpc_blob_t *
1.15 misho 203: rpc_srv_registerBLOB(rpc_srv_t * __restrict srv, size_t len, int tout)
1.2 misho 204: {
205: rpc_blob_t *blob = NULL;
206:
207: if (!srv || !len) {
1.7 misho 208: rpc_SetErr(EINVAL, "Invalid parameter can`t register BLOB variable");
1.2 misho 209: return blob;
210: }
211:
1.15 misho 212: blob = rpc_srv_blobCreate(srv, len, tout);
1.2 misho 213:
1.10 misho 214: TAILQ_INSERT_TAIL(&srv->srv_blob.blobs, blob, blob_node);
1.15 misho 215:
1.2 misho 216: return blob;
217: }
218:
219: /*
1.7 misho 220: * rpc_srv_unregisterBLOB() - Unregister BLOB from server
221: *
1.2 misho 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: {
1.10 misho 229: rpc_blob_t *b;
1.2 misho 230:
231: if (!srv) {
1.7 misho 232: rpc_SetErr(EINVAL, "Invalid parameter can`t unregister BLOB variable");
1.2 misho 233: return -1;
234: }
235:
236: b = rpc_srv_getBLOB(srv, var);
1.3 misho 237: if (!b) /* not found element for unregister */
1.2 misho 238: return 0;
239:
1.10 misho 240: TAILQ_REMOVE(&srv->srv_blob.blobs, b, blob_node);
241:
1.2 misho 242: rpc_srv_blobFree(srv, b);
1.13 misho 243: e_free(b);
1.2 misho 244: return 1;
245: }
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