Annotation of libaitrpc/src/lists.c, revision 1.9.2.1
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 $
1.9.2.1 ! misho 6: * $Id: lists.c,v 1.9 2012/05/14 08:39:06 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:
1.7 misho 15: Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
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
1.9.2.1 ! misho 53: * @tag = Function tag
! 54: * @funcaddr = Function address
! 55: * @args = Number of return function arguments
! 56: * return: -1 error, 0 already registered tag or 1 register ok
1.2 misho 57: */
58: int
1.9.2.1 ! misho 59: rpc_srv_registerCall(rpc_srv_t * __restrict srv, u_short tag, void *funcaddr, u_short args)
1.2 misho 60: {
61: rpc_func_t *func;
62:
1.9.2.1 ! misho 63: if (!srv || !funcaddr) {
1.7 misho 64: rpc_SetErr(EINVAL, "Invalid parameter can`t register function");
1.2 misho 65: return -1;
1.9.2.1 ! misho 66: } else {
! 67: /* search for duplicate */
! 68: TAILQ_FOREACH(func, &srv->srv_funcs, func_node)
! 69: if (AIT_KEY(&func->func_name) == tag)
! 70: return 0;
1.2 misho 71: }
1.9.2.1 ! misho 72:
1.2 misho 73: if (!(func = malloc(sizeof(rpc_func_t)))) {
74: LOGERR;
75: return -1;
1.9.2.1 ! misho 76: } else {
1.2 misho 77: memset(func, 0, sizeof(rpc_func_t));
1.9.2.1 ! misho 78: func->func_parent = srv;
1.2 misho 79: }
80:
1.9.2.1 ! misho 81: AIT_KEY(&func->func_name) = tag;
! 82: AIT_SET_PTR(&func->func_name, funcaddr, 0);
1.2 misho 83:
1.7 misho 84: /* allocate return variables */
1.9.2.1 ! misho 85: if (args > 0 && !(func->func_vars = io_allocVars(args))) {
1.7 misho 86: AIT_FREE_VAL(&func->func_name);
1.2 misho 87: free(func);
88: return -1;
89: }
90:
1.7 misho 91: /* add to list of functions */
1.9.2.1 ! misho 92: TAILQ_INSERT_TAIL(&srv->srv_funcs, func, func_node);
! 93: return 1;
1.2 misho 94: }
95:
96: /*
1.7 misho 97: * rpc_srv_unregisterCall() - Unregister call from RPC server
98: *
1.2 misho 99: * @srv = RPC Server instance
1.9.2.1 ! misho 100: * @tag = Function tag
1.2 misho 101: * return: -1 error, 0 not found call, 1 unregister ok
102: */
103: int
1.9.2.1 ! misho 104: rpc_srv_unregisterCall(rpc_srv_t * __restrict srv, u_short tag)
1.2 misho 105: {
1.9.2.1 ! misho 106: rpc_func_t *f;
1.2 misho 107:
1.9.2.1 ! misho 108: if (!srv) {
1.7 misho 109: rpc_SetErr(EINVAL, "Invalid parameter can`t unregister function");
1.2 misho 110: return -1;
1.9.2.1 ! misho 111: }
1.2 misho 112:
1.9.2.1 ! misho 113: f = rpc_srv_getCall(srv, tag);
1.9 misho 114: if (!f) /* not found element for unregister */
1.2 misho 115: return 0;
116:
1.9.2.1 ! misho 117: TAILQ_REMOVE(&srv->srv_funcs, f, func_node);
! 118:
1.6 misho 119: io_freeVars(&f->func_vars);
1.7 misho 120: AIT_FREE_VAL(&f->func_name);
1.5 misho 121: free(f);
1.2 misho 122: return 1;
123: }
124:
125: /*
1.7 misho 126: * rpc_srv_getCall() - Get registered call from RPC server
127: *
1.2 misho 128: * @srv = RPC Server instance
129: * @tag = tag for function
130: * return: NULL not found call, !=NULL return call
131: */
132: inline rpc_func_t *
1.9.2.1 ! misho 133: rpc_srv_getCall(rpc_srv_t * __restrict srv, uint16_t tag)
1.2 misho 134: {
1.9.2.1 ! misho 135: rpc_func_t *f, *tmp;
1.2 misho 136:
137: if (!srv) {
1.7 misho 138: rpc_SetErr(EINVAL, "Invalid parameter can`t get function");
1.2 misho 139: return NULL;
140: }
141:
1.9.2.1 ! misho 142: TAILQ_FOREACH_SAFE(f, &srv->srv_funcs, func_node, tmp)
! 143: if (AIT_KEY(&f->func_name) == tag)
1.2 misho 144: break;
145:
146: return f;
147: }
148:
1.9.2.1 ! misho 149: /* --------------------------------------------------------- */
1.2 misho 150:
151: /*
1.7 misho 152: * rpc_srv_getBLOB() - Get registered BLOB
153: *
1.2 misho 154: * @srv = RPC Server instance
155: * @var = hash for variable
156: * return: NULL not found, !=NULL return blob var
157: */
158: inline rpc_blob_t *
159: rpc_srv_getBLOB(rpc_srv_t * __restrict srv, uint32_t var)
160: {
161: rpc_blob_t *b;
162:
163: if (!srv) {
1.7 misho 164: rpc_SetErr(EINVAL, "Invalid parameter can`t get BLOB variable");
1.2 misho 165: return NULL;
166: }
167:
168: for (b = srv->srv_blob.blobs; b; b = b->blob_next) {
169: if (b->blob_var == var)
170: break;
171: }
172:
173: return b;
174: }
175:
176: /*
1.7 misho 177: * rpc_srv_registerBLOB() - Register new BLOB to server
178: *
1.2 misho 179: * @srv = RPC Server instance
180: * @len = BLOB length
181: * return: NULL error or new registered BLOB
182: */
183: rpc_blob_t *
184: rpc_srv_registerBLOB(rpc_srv_t * __restrict srv, size_t len)
185: {
186: rpc_blob_t *blob = NULL;
187:
188: if (!srv || !len) {
1.7 misho 189: rpc_SetErr(EINVAL, "Invalid parameter can`t register BLOB variable");
1.2 misho 190: return blob;
191: }
192:
193: blob = rpc_srv_blobCreate(srv, len);
194: if (blob) {
195: blob->blob_next = srv->srv_blob.blobs;
196: srv->srv_blob.blobs = blob;
197: }
198:
199: return blob;
200: }
201:
202: /*
1.7 misho 203: * rpc_srv_unregisterBLOB() - Unregister BLOB from server
204: *
1.2 misho 205: * @srv = RPC Server instance
206: * @var = BLOB Variable for unregister
207: * return: -1 error, 0 not found call, 1 unregister ok
208: */
209: int
210: rpc_srv_unregisterBLOB(rpc_srv_t * __restrict srv, uint32_t var)
211: {
212: rpc_blob_t *b, *curr;
213:
214: if (!srv) {
1.7 misho 215: rpc_SetErr(EINVAL, "Invalid parameter can`t unregister BLOB variable");
1.2 misho 216: return -1;
217: }
218:
219: b = rpc_srv_getBLOB(srv, var);
1.3 misho 220: if (!b) /* not found element for unregister */
1.2 misho 221: return 0;
1.5 misho 222: /* if BLOB is unmapped force to unmap object */
223: if (b->blob_data)
224: rpc_srv_blobUnmap(b);
1.2 misho 225:
1.3 misho 226: if (srv->srv_blob.blobs == b) { /* if is 1st element */
1.2 misho 227: srv->srv_blob.blobs = srv->srv_blob.blobs->blob_next;
228: } else {
229: for (curr = srv->srv_blob.blobs; curr->blob_next != b; curr = curr->blob_next);
230: curr->blob_next = curr->blob_next->blob_next;
231: }
232: rpc_srv_blobFree(srv, b);
233: free(b);
234:
235: return 1;
236: }
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