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c906108c SS |
1 | /* |
2 | * (c) Copyright 1990-1996 OPEN SOFTWARE FOUNDATION, INC. | |
3 | * (c) Copyright 1990-1996 HEWLETT-PACKARD COMPANY | |
4 | * (c) Copyright 1990-1996 DIGITAL EQUIPMENT CORPORATION | |
5 | * (c) Copyright 1991, 1992 Siemens-Nixdorf Information Systems | |
6 | * To anyone who acknowledges that this file is provided "AS IS" without | |
7 | * any express or implied warranty: permission to use, copy, modify, and | |
8 | * distribute this file for any purpose is hereby granted without fee, | |
9 | * provided that the above copyright notices and this notice appears in | |
10 | * all source code copies, and that none of the names listed above be used | |
11 | * in advertising or publicity pertaining to distribution of the software | |
12 | * without specific, written prior permission. None of these organizations | |
13 | * makes any representations about the suitability of this software for | |
14 | * any purpose. | |
15 | */ | |
16 | /* | |
17 | * Header file for attributes object | |
18 | */ | |
19 | ||
20 | #ifndef CMA_ATTR | |
21 | #define CMA_ATTR | |
22 | ||
23 | /* | |
24 | * INCLUDE FILES | |
25 | */ | |
26 | ||
27 | #include <cma_defs.h> | |
28 | #include <cma_queue.h> | |
29 | #ifdef __hpux | |
30 | # include <sys/param.h> | |
31 | #endif | |
32 | #if _CMA_UNIX_TYPE == _CMA__SVR4 | |
33 | #include <sys/unistd.h> | |
34 | #endif | |
35 | /* | |
36 | * CONSTANTS AND MACROS | |
37 | */ | |
38 | ||
39 | \f | |
40 | /* | |
41 | * FUNCTIONAL DESCRIPTION: | |
42 | * | |
43 | * cma__int_attr_get_priority - Performs the work of cma_attr_get_priority | |
44 | * | |
45 | * FORMAL PARAMETERS: | |
46 | * | |
47 | * cma_t_attr *_att_ - Attribute object to get from | |
48 | * cma_t_priority *_setting_ - Current setting | |
49 | * | |
50 | * IMPLICIT INPUTS: | |
51 | * | |
52 | * none | |
53 | * | |
54 | * IMPLICIT OUTPUTS: | |
55 | * | |
56 | * priority | |
57 | * | |
58 | * FUNCTION VALUE: | |
59 | * | |
60 | * none | |
61 | * | |
62 | * SIDE EFFECTS: | |
63 | * | |
64 | * none | |
65 | */ | |
66 | #define cma__int_attr_get_priority(_att_,_setting_) { \ | |
67 | cma__t_int_attr *_int_att_; \ | |
68 | (_int_att_) = cma__validate_default_attr (_att_); \ | |
69 | cma__int_lock ((_int_att_)->mutex); \ | |
70 | (*(_setting_)) = (_int_att_)->priority; \ | |
71 | cma__int_unlock ((_int_att_)->mutex); \ | |
72 | } | |
73 | ||
74 | \f | |
75 | /* | |
76 | * FUNCTIONAL DESCRIPTION: | |
77 | * | |
78 | * cma__int_attr_get_sched - Performs work of cma_attr_get_sched | |
79 | * | |
80 | * FORMAL PARAMETERS: | |
81 | * | |
82 | * cma_t_attr *_att_ _ Attributes object used | |
83 | * cma_t_sched_policy *_setting_ - Current setting | |
84 | * | |
85 | * IMPLICIT INPUTS: | |
86 | * | |
87 | * none | |
88 | * | |
89 | * IMPLICIT OUTPUTS: | |
90 | * | |
91 | * scheduling policy | |
92 | * | |
93 | * FUNCTION VALUE: | |
94 | * | |
95 | * none | |
96 | * | |
97 | * SIDE EFFECTS: | |
98 | * | |
99 | * none | |
100 | */ | |
101 | #define cma__int_attr_get_sched(_att_,_setting_) { \ | |
102 | cma__t_int_attr *_int_att_; \ | |
103 | (_int_att_) = cma__validate_default_attr (_att_); \ | |
104 | cma__int_lock ((_int_att_)->mutex); \ | |
105 | (*(_setting_)) = (_int_att_)->policy; \ | |
106 | cma__int_unlock ((_int_att_)->mutex); \ | |
107 | } | |
108 | ||
109 | \f | |
110 | /* | |
111 | * FUNCTIONAL DESCRIPTION: | |
112 | * | |
113 | * cma__int_attr_get_inherit_sched - Performs work of | |
114 | * cma_attr_get_inherit_sched | |
115 | * | |
116 | * FORMAL PARAMETERS: | |
117 | * | |
118 | * cma_t_attr *_att_ - Attributes object to use | |
119 | * cma_t_sched_inherit *_setting_ - Current setting | |
120 | * | |
121 | * IMPLICIT INPUTS: | |
122 | * | |
123 | * none | |
124 | * | |
125 | * IMPLICIT OUTPUTS: | |
126 | * | |
127 | * Inheritable scheduling policy | |
128 | * | |
129 | * FUNCTION VALUE: | |
130 | * | |
131 | * none | |
132 | * | |
133 | * SIDE EFFECTS: | |
134 | * | |
135 | * none | |
136 | */ | |
137 | #define cma__int_attr_get_inherit_sched(_att_,_setting_) { \ | |
138 | cma__t_int_attr *_int_att_; \ | |
139 | (_int_att_) = cma__validate_default_attr (_att_); \ | |
140 | cma__int_lock ((_int_att_)->mutex); \ | |
141 | (*(_setting_)) \ | |
142 | = ((_int_att_)->inherit_sched ? cma_c_sched_inherit : cma_c_sched_use_default); \ | |
143 | cma__int_unlock ((_int_att_)->mutex); \ | |
144 | } | |
145 | \f | |
146 | /* | |
147 | * FUNCTIONAL DESCRIPTION: | |
148 | * | |
149 | * cma__int_attr_set_stacksize - Performs work for cma_attr_set_stacksize | |
150 | * | |
151 | * FORMAL PARAMETERS: | |
152 | * | |
153 | * cma_t_attr *_att_ - Attributes object to use | |
154 | * cma_t_natural _setting_ - Setting | |
155 | * | |
156 | * IMPLICIT INPUTS: | |
157 | * | |
158 | * none | |
159 | * | |
160 | * IMPLICIT OUTPUTS: | |
161 | * | |
162 | * none | |
163 | * | |
164 | * FUNCTION VALUE: | |
165 | * | |
166 | * none | |
167 | * | |
168 | * SIDE EFFECTS: | |
169 | * | |
170 | * Change attribute objects stack size setting | |
171 | */ | |
172 | #define cma__int_attr_set_stacksize(_att_,_setting_) { \ | |
173 | cma__t_int_attr *_int_att_; \ | |
174 | if ((_setting_) <= 0) \ | |
175 | cma__error (cma_s_badparam); \ | |
176 | _int_att_ = cma__validate_attr (_att_); \ | |
177 | cma__int_lock ((_int_att_)->mutex); \ | |
178 | _int_att_->stack_size = cma__roundup_chunksize(_setting_); \ | |
179 | cma__free_cache (_int_att_, cma__c_obj_tcb); \ | |
180 | _int_att_->cache[cma__c_obj_tcb].revision++; \ | |
181 | _int_att_->cache[cma__c_obj_stack].revision++; \ | |
182 | cma__int_unlock (_int_att_->mutex); \ | |
183 | } | |
184 | \f | |
185 | /* | |
186 | * FUNCTIONAL DESCRIPTION: | |
187 | * | |
188 | * cma__int_attr_get_stacksize - Performs work of cma_attr_get_stacksize | |
189 | * | |
190 | * FORMAL PARAMETERS: | |
191 | * | |
192 | * cma_t_attr *_att_ - Attributes object to use | |
193 | * cma_t_natural *_setting_ - Current setting | |
194 | * | |
195 | * IMPLICIT INPUTS: | |
196 | * | |
197 | * none | |
198 | * | |
199 | * IMPLICIT OUTPUTS: | |
200 | * | |
201 | * Attribute objects stack size setting | |
202 | * | |
203 | * FUNCTION VALUE: | |
204 | * | |
205 | * none | |
206 | * | |
207 | * SIDE EFFECTS: | |
208 | * | |
209 | * none | |
210 | */ | |
211 | #define cma__int_attr_get_stacksize(_att_,_setting_) { \ | |
212 | cma__t_int_attr *_int_att_; \ | |
213 | (_int_att_) = cma__validate_default_attr (_att_); \ | |
214 | cma__int_lock ((_int_att_)->mutex); \ | |
215 | (*(_setting_)) = (_int_att_)->stack_size; \ | |
216 | cma__int_unlock ((_int_att_)->mutex); \ | |
217 | } | |
218 | ||
219 | \f | |
220 | /* | |
221 | * FUNCTIONAL DESCRIPTION: | |
222 | * | |
223 | * cma__int_attr_set_guardsize - Performs work for cma_attr_set_guardsize | |
224 | * | |
225 | * FORMAL PARAMETERS: | |
226 | * | |
227 | * cma_t_attr *_att_ - Attributes object to use | |
228 | * cma_t_natural _setting_ - Setting | |
229 | * | |
230 | * IMPLICIT INPUTS: | |
231 | * | |
232 | * none | |
233 | * | |
234 | * IMPLICIT OUTPUTS: | |
235 | * | |
236 | * none | |
237 | * | |
238 | * FUNCTION VALUE: | |
239 | * | |
240 | * none | |
241 | * | |
242 | * SIDE EFFECTS: | |
243 | * | |
244 | * Change attribute objects guard size setting | |
245 | */ | |
246 | #define cma__int_attr_set_guardsize(_att_,_setting_) { \ | |
247 | cma__t_int_attr *_int_att_; \ | |
248 | _int_att_ = cma__validate_attr (_att_); \ | |
249 | cma__int_lock ((_int_att_)->mutex); \ | |
250 | _int_att_->guard_size = cma__roundup_chunksize(_setting_); \ | |
251 | cma__free_cache (_int_att_, cma__c_obj_tcb); \ | |
252 | _int_att_->cache[cma__c_obj_tcb].revision++; \ | |
253 | _int_att_->cache[cma__c_obj_stack].revision++; \ | |
254 | cma__int_unlock (_int_att_->mutex); \ | |
255 | } | |
256 | \f | |
257 | /* | |
258 | * FUNCTIONAL DESCRIPTION: | |
259 | * | |
260 | * cma__int_attr_get_guardsize - Performs work of cma_attr_get_guardsize | |
261 | * | |
262 | * FORMAL PARAMETERS: | |
263 | * | |
264 | * cma_t_attr *_att_ - Attributes object to use | |
265 | * cma_t_natural *_setting_ - Current setting | |
266 | * | |
267 | * IMPLICIT INPUTS: | |
268 | * | |
269 | * none | |
270 | * | |
271 | * IMPLICIT OUTPUTS: | |
272 | * | |
273 | * Attribute objects guard size setting | |
274 | * | |
275 | * FUNCTION VALUE: | |
276 | * | |
277 | * none | |
278 | * | |
279 | * SIDE EFFECTS: | |
280 | * | |
281 | * none | |
282 | */ | |
283 | #define cma__int_attr_get_guardsize(_att_,_setting_) { \ | |
284 | cma__t_int_attr *_int_att_; \ | |
285 | (_int_att_) = cma__validate_default_attr (_att_); \ | |
286 | cma__int_lock ((_int_att_)->mutex); \ | |
287 | (*(_setting_)) = (_int_att_)->guard_size; \ | |
288 | cma__int_unlock ((_int_att_)->mutex); \ | |
289 | } | |
290 | ||
291 | /* | |
292 | * TYPEDEFS | |
293 | */ | |
294 | #ifndef __STDC__ | |
295 | struct CMA__T_INT_MUTEX; /* Avoid circular dependency */ | |
296 | #endif | |
297 | ||
298 | typedef struct CMA__T_CACHE { | |
299 | cma_t_natural revision; /* Revisions */ | |
300 | cma_t_natural count; | |
301 | cma__t_queue queue; /* Cache headers */ | |
302 | } cma__t_cache; | |
303 | ||
304 | typedef struct CMA__T_INT_ATTR { | |
305 | cma__t_object header; /* Common header */ | |
306 | struct CMA__T_INT_ATTR *attributes; /* Point to controlling attr */ | |
307 | struct CMA__T_INT_MUTEX *mutex; /* Serialize access to object */ | |
308 | cma_t_priority priority; /* Priority of new thread */ | |
309 | cma_t_sched_policy policy; /* Sched policy of thread */ | |
310 | cma_t_boolean inherit_sched; /* Is scheduling inherited? */ | |
311 | cma_t_natural stack_size; /* Size of stack (bytes) */ | |
312 | cma_t_natural guard_size; /* Size of guard (bytes) */ | |
313 | cma_t_mutex_kind mutex_kind; /* Mutex kind */ | |
314 | cma__t_cache cache[cma__c_obj_num]; /* Cache information */ | |
315 | cma_t_boolean delete_pending; /* attr. obj. is deleted */ | |
316 | cma_t_natural refcnt; /* Number of objects using attr. obj */ | |
317 | } cma__t_int_attr; | |
318 | ||
319 | /* | |
320 | * GLOBAL DATA | |
321 | */ | |
322 | ||
323 | extern cma__t_int_attr cma__g_def_attr; | |
324 | ||
325 | /* | |
326 | * INTERNAL INTERFACES | |
327 | */ | |
328 | ||
329 | extern void cma__destroy_attributes (cma__t_int_attr *); | |
330 | ||
331 | extern void cma__free_attributes (cma__t_int_attr *); | |
332 | ||
333 | extern void cma__free_cache (cma__t_int_attr *,cma_t_natural ); | |
334 | ||
335 | extern cma__t_int_attr *cma__get_attributes (cma__t_int_attr *); | |
336 | ||
337 | extern void cma__init_attr (void); | |
338 | ||
339 | extern void cma__reinit_attr (cma_t_integer); | |
340 | ||
341 | #endif |