source: libcfa/src/bits/containers.hfa@ 9845cb6

ADT ast-experimental
Last change on this file since 9845cb6 was be5f0a5, checked in by Thierry Delisle <tdelisle@…>, 3 years ago

Changed monitors to use the user_link instead of the ready_link
  • Property mode set to 100644
File size: 6.9 KB
Line 
1//
2// Cforall Version 1.0.0 Copyright (C) 2016 University of Waterloo
3//
4// The contents of this file are covered under the licence agreement in the
5// file "LICENCE" distributed with Cforall.
6//
7// bits/containers.hfa -- Intrusive generic containers.hfa
8//
9// Author : Thierry Delisle
10// Created On : Tue Oct 31 16:38:50 2017
11// Last Modified By : Peter A. Buhr
12// Last Modified On : Wed Jan 15 07:42:35 2020
13// Update Count : 28
14
15#pragma once
16
17#include "bits/align.hfa"
18#include "bits/defs.hfa"
19#include <stdio.h>
20//-----------------------------------------------------------------------------
21// Array
22//-----------------------------------------------------------------------------
23
24#ifdef __cforall
25 forall(T &)
26#else
27 #define T void
28#endif
29struct __small_array {
30 T * data;
31 __lock_size_t size;
32};
33#undef T
34
35#ifdef __cforall
36 #define __small_array_t(T) __small_array(T)
37#else
38 #define __small_array_t(T) __small_array
39#endif
40
41#ifdef __cforall
42 // forall(T | sized(T))
43 // static inline void ?{}(__small_array(T) & this) {}
44
45 forall(T & | sized(T))
46 static inline T & ?[?]( __small_array(T) & this, __lock_size_t idx ) {
47 return ((typeof(this.data))this.data)[idx];
48 }
49
50 forall(T & | sized(T))
51 static inline T & ?[?]( const __small_array(T) & this, __lock_size_t idx ) {
52 return ((typeof(this.data))this.data)[idx];
53 }
54
55 forall(T &)
56 static inline T * begin( const __small_array(T) & this ) {
57 return ((typeof(this.data))this.data);
58 }
59
60 forall(T & | sized(T))
61 static inline T * end( const __small_array(T) & this ) {
62 return ((typeof(this.data))this.data) + this.size;
63 }
64#endif
65
66//-----------------------------------------------------------------------------
67// Node Base
68//-----------------------------------------------------------------------------
69
70#ifdef __cforall
71 trait is_node(T &) {
72 T *& get_next( T & );
73 };
74#endif
75
76//-----------------------------------------------------------------------------
77// Stack
78//-----------------------------------------------------------------------------
79#ifdef __cforall
80 forall(TYPE &)
81 #define T TYPE
82#else
83 #define T void
84#endif
85struct __stack {
86 T * top;
87};
88#undef T
89
90#ifdef __cforall
91#define __stack_t(T) __stack(T)
92#else
93#define __stack_t(T) struct __stack
94#endif
95
96#ifdef __cforall
97 forall(T &)
98 static inline void ?{}( __stack(T) & this ) {
99 (this.top){ 0p };
100 }
101
102 static inline forall( T & | is_node(T) ) {
103 void push( __stack(T) & this, T * val ) {
104 verify( !get_next( *val ) );
105 get_next( *val ) = this.top;
106 this.top = val;
107 }
108
109 T * pop( __stack(T) & this ) {
110 T * top = this.top;
111 if( top ) {
112 this.top = get_next( *top );
113 get_next( *top ) = 0p;
114 }
115 return top;
116 }
117
118 int ?!=?( const __stack(T) & this, __attribute__((unused)) zero_t zero ) {
119 return this.top != 0;
120 }
121 }
122#endif
123
124//-----------------------------------------------------------------------------
125// Queue
126//-----------------------------------------------------------------------------
127#ifdef __cforall
128 forall(TYPE &)
129 #define T TYPE
130#else
131 #define T void
132#endif
133struct __queue {
134 T * head;
135 T ** tail;
136};
137#undef T
138
139#ifdef __cforall
140#define __queue_t(T) __queue(T)
141#else
142#define __queue_t(T) struct __queue
143#endif
144
145#ifdef __cforall
146 static inline forall( T & | is_node(T) ) {
147 void ?{}( __queue(T) & this ) with( this ) {
148 (this.head){ 1p };
149 (this.tail){ &this.head };
150 verify(*this.tail == 1p);
151 }
152
153 void append( __queue(T) & this, T * val ) with(this) {
154 verify(get_next( *val ) == 0p);
155 verify(this.tail != 0p);
156 verify(*this.tail == 1p);
157 *this.tail = val;
158 this.tail = &get_next( *val );
159 *this.tail = 1p;
160 }
161
162 T * peek( __queue(T) & this ) {
163 verify(*this.tail == 1p);
164 T * frontnode = this.head;
165 if( frontnode != 1p ) {
166 verify(*this.tail == 1p);
167 return frontnode;
168 }
169 verify(*this.tail == 1p);
170 return 0p;
171 }
172
173 T * pop_head( __queue(T) & this ) {
174 verify(*this.tail == 1p);
175 T * _head = this.head;
176 if( _head != 1p ) {
177 this.head = get_next( *_head );
178 if( get_next( *_head ) == 1p ) {
179 this.tail = &this.head;
180 }
181 get_next( *_head ) = 0p;
182 verify(*this.tail == 1p);
183 verify( get_next(*_head) == 0p );
184 return _head;
185 }
186 verify(*this.tail == 1p);
187 return 0p;
188 }
189
190 T * remove( __queue(T) & this, T ** it ) with( this ) {
191 T * val = *it;
192 verify( val );
193
194 (*it) = get_next( *val );
195
196 if( this.tail == &get_next( *val ) ) {
197 this.tail = it;
198 }
199
200 get_next( *val ) = 0p;
201
202 verify( (this.head == 1p) == (&this.head == this.tail) );
203 verify( *this.tail == 1p );
204 return val;
205 }
206
207 int ?!=?( const __queue(T) & this, __attribute__((unused)) zero_t zero ) {
208 return this.head != 1p;
209 }
210 }
211#endif
212
213
214//-----------------------------------------------------------------------------
215// Doubly Linked List
216//-----------------------------------------------------------------------------
217#ifdef __cforall
218 forall(TYPE &)
219 #define T TYPE
220 #define __getter_t * [T * & next, T * & prev] ( T & )
221#else
222 typedef void (*__generit_c_getter_t)();
223 #define T void
224 #define __getter_t __generit_c_getter_t
225#endif
226struct __dllist {
227 T * head;
228 __getter_t __get;
229};
230#undef T
231#undef __getter_t
232
233#ifdef __cforall
234#define __dllist_t(T) __dllist(T)
235#else
236#define __dllist_t(T) struct __dllist
237#endif
238
239#ifdef __cforall
240 forall(T & )
241 static inline [void] ?{}( __dllist(T) & this, * [T * & next, T * & prev] ( T & ) __get ) {
242 (this.head){ 0p };
243 this.__get = __get;
244 }
245
246 #define next 0
247 #define prev 1
248 static inline forall(T &) {
249 void push_front( __dllist(T) & this, T & node ) with( this ) {
250 verify(__get);
251 if ( this.head ) {
252 __get( node ).next = this.head;
253 __get( node ).prev = __get( *this.head ).prev;
254 // inserted node must be consistent before it is seen
255 // prevent code movement across barrier
256 asm( "" : : : "memory" );
257 __get( *this.head ).prev = &node;
258 T & _prev = *__get( node ).prev;
259 __get( _prev ).next = &node;
260 } else {
261 __get( node ).next = &node;
262 __get( node ).prev = &node;
263 }
264
265 // prevent code movement across barrier
266 asm( "" : : : "memory" );
267 this.head = &node;
268 }
269
270 void remove( __dllist(T) & this, T & node ) with( this ) {
271 verify(__get);
272 if ( &node == this.head ) {
273 if ( __get( *this.head ).next == this.head ) {
274 this.head = 0p;
275 } else {
276 this.head = __get( *this.head ).next;
277 }
278 }
279 __get( *__get( node ).next ).prev = __get( node ).prev;
280 __get( *__get( node ).prev ).next = __get( node ).next;
281 __get( node ).next = 0p;
282 __get( node ).prev = 0p;
283 }
284
285 int ?!=?( const __dllist(T) & this, __attribute__((unused)) zero_t zero ) {
286 return this.head != 0;
287 }
288
289 void move_to_front( __dllist(T) & src, __dllist(T) & dst, T & node ) {
290 remove (src, node);
291 push_front(dst, node);
292 }
293 }
294 #undef next
295 #undef prev
296#endif
297
298//-----------------------------------------------------------------------------
299// Tools
300//-----------------------------------------------------------------------------
301#ifdef __cforall
302
303#endif
304
305// Local Variables: //
306// tab-width: 4 //
307// End: //
Note: See TracBrowser for help on using the repository browser.