1 /* -*- mode: c ; c-file-style: "canonware-c-style" -*-
2 ******************************************************************************
3 *
4 * Copyright (C) 1996-2005 Jason Evans <jasone@canonware.com>.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice(s), this list of conditions and the following disclaimer
12 * unmodified other than the allowable addition of one or more
13 * copyright notices.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice(s), this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
17 * distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY
20 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE
23 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
26 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
28 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
29 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 *
31 ******************************************************************************
32 *
33 * Version: Onyx 5.1.2
34 *
35 ******************************************************************************/
36
37 uint32_t
38 nxo_l_thread_token(cw_nxo_t *a_nxo, cw_nxo_threadp_t *a_threadp,
39 const char *a_str, uint32_t a_len);
40
41 #ifndef CW_USE_INLINES
42 cw_nxo_t *
43 nxo_l_thread_trapped_arg_get(cw_nxo_t *a_nxo);
44
45 #ifdef CW_REGEX
46 cw_nxo_regex_cache_t *
47 nxo_l_thread_regex_cache_get(cw_nxo_t *a_nxo);
48 #endif
49
50 bool
51 nxoe_l_thread_delete(cw_nxoe_t *a_nxoe, uint32_t a_iter);
52
53 cw_nxoe_t *
54 nxoe_l_thread_ref_iter(cw_nxoe_t *a_nxoe, bool a_reset);
55 #endif
56
57 #if (defined(CW_USE_INLINES) || defined(CW_NXO_THREAD_C_))
58 CW_INLINE cw_nxo_t *
nxo_l_thread_trapped_arg_get(cw_nxo_t * a_nxo)59 nxo_l_thread_trapped_arg_get(cw_nxo_t *a_nxo)
60 {
61 cw_nxoe_thread_t *thread;
62
63 cw_check_ptr(a_nxo);
64 cw_dassert(a_nxo->magic == CW_NXO_MAGIC);
65
66 thread = (cw_nxoe_thread_t *) a_nxo->o.nxoe;
67 cw_dassert(thread->nxoe.magic == CW_NXOE_MAGIC);
68 cw_assert(thread->nxoe.type == NXOT_THREAD);
69
70 return &thread->trapped_arg;
71 }
72
73 #ifdef CW_REGEX
74 CW_INLINE cw_nxo_regex_cache_t *
nxo_l_thread_regex_cache_get(cw_nxo_t * a_nxo)75 nxo_l_thread_regex_cache_get(cw_nxo_t *a_nxo)
76 {
77 cw_nxoe_thread_t *thread;
78
79 cw_check_ptr(a_nxo);
80 cw_dassert(a_nxo->magic == CW_NXO_MAGIC);
81
82 thread = (cw_nxoe_thread_t *) a_nxo->o.nxoe;
83 cw_dassert(thread->nxoe.magic == CW_NXOE_MAGIC);
84 cw_assert(thread->nxoe.type == NXOT_THREAD);
85
86 return &thread->regex_cache;
87 }
88 #endif
89
90 CW_INLINE bool
nxoe_l_thread_delete(cw_nxoe_t * a_nxoe,uint32_t a_iter)91 nxoe_l_thread_delete(cw_nxoe_t *a_nxoe, uint32_t a_iter)
92 {
93 cw_nxoe_thread_t *thread;
94
95 thread = (cw_nxoe_thread_t *) a_nxoe;
96
97 cw_check_ptr(thread);
98 cw_dassert(thread->nxoe.magic == CW_NXOE_MAGIC);
99 cw_assert(thread->nxoe.type == NXOT_THREAD);
100
101 if (thread->tok_str != thread->buffer)
102 {
103 /* This shouldn't happen, since it indicates that there is an unaccepted
104 * token. However, it's really the caller's fault, so just clean up. */
105 nxa_free(thread->tok_str, thread->buffer_len);
106 }
107
108 #ifdef CW_REGEX
109 nxo_l_regex_cache_delete(&thread->regex_cache);
110 #endif
111
112 nxa_free(thread, sizeof(cw_nxoe_thread_t));
113
114 return false;
115 }
116
117 CW_INLINE cw_nxoe_t *
nxoe_l_thread_ref_iter(cw_nxoe_t * a_nxoe,bool a_reset)118 nxoe_l_thread_ref_iter(cw_nxoe_t *a_nxoe, bool a_reset)
119 {
120 cw_nxoe_t *retval;
121 cw_nxoe_thread_t *thread;
122 /* Used for remembering the current state of reference iteration. This
123 * function is only called by the garbage collector, so using a static
124 * variable works fine. */
125 static uint32_t ref_iter;
126
127 thread = (cw_nxoe_thread_t *) a_nxoe;
128
129 if (a_reset)
130 {
131 ref_iter = 0;
132 }
133
134 for (retval = NULL; retval == NULL; ref_iter++)
135 {
136 switch (ref_iter)
137 {
138 case 0:
139 {
140 retval = nxo_nxoe_get(&thread->estack);
141 break;
142 }
143 case 1:
144 {
145 retval = nxo_nxoe_get(&thread->istack);
146 break;
147 }
148 case 2:
149 {
150 retval = nxo_nxoe_get(&thread->ostack);
151 break;
152 }
153 case 3:
154 {
155 retval = nxo_nxoe_get(&thread->dstack);
156 break;
157 }
158 #ifdef CW_OOP
159 #define CW_REF_ITER_CSTACK 1
160 case 4:
161 {
162 retval = nxo_nxoe_get(&thread->cstack);
163 break;
164 }
165 #else
166 #define CW_REF_ITER_CSTACK 0
167 #endif
168 case (4 + CW_REF_ITER_CSTACK):
169 {
170 retval = nxo_nxoe_get(&thread->tstack);
171 break;
172 }
173 case (5 + CW_REF_ITER_CSTACK):
174 {
175 retval = nxo_nxoe_get(&thread->stdin_nxo);
176 break;
177 }
178 case (6 + CW_REF_ITER_CSTACK):
179 {
180 retval = nxo_nxoe_get(&thread->stdout_nxo);
181 break;
182 }
183 case (7 + CW_REF_ITER_CSTACK):
184 {
185 retval = nxo_nxoe_get(&thread->stderr_nxo);
186 break;
187 }
188 case (8 + CW_REF_ITER_CSTACK):
189 {
190 retval = nxo_nxoe_get(&thread->trapped_arg);
191 break;
192 }
193 #ifdef CW_REGEX
194 case (9 + CW_REF_ITER_CSTACK):
195 {
196 retval = nxo_l_regex_cache_ref_iter(&thread->regex_cache, true);
197 if (retval == NULL)
198 {
199 /* Avoid looping and hitting the default case. */
200 goto RETURN;
201 }
202 break;
203 }
204 #endif
205 #undef CW_REF_ITER_CSTACK
206 default:
207 {
208 #ifdef CW_REGEX
209 retval = nxo_l_regex_cache_ref_iter(&thread->regex_cache,
210 false);
211 #else
212 retval = NULL;
213 #endif
214 goto RETURN;
215 }
216 }
217 }
218
219 RETURN:
220 return retval;
221 }
222 #endif /* (defined(CW_USE_INLINES) || defined(CW_NXO_THREAD_C_)) */
223