source: libcfa/src/bits/containers.hfa@ 98399b2

ADT arm-eh ast-experimental enum forall-pointer-decay jacob/cs343-translation jenkins-sandbox new-ast new-ast-unique-expr pthread-emulation qualifiedEnum
Last change on this file since 98399b2 was 2233ad4, checked in by Peter A. Buhr <pabuhr@…>, 6 years ago

change queue/deque != 0 to return int instead of bool, add != 0 to stack
  • Property mode set to 100644
File size: 6.5 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 Jun 26 08:52:20 2019
13// Update Count : 4
14
15#pragma once
16
17#include "bits/align.hfa"
18#include "bits/defs.hfa"
19
20//-----------------------------------------------------------------------------
21// Array
22//-----------------------------------------------------------------------------
23
24#ifdef __cforall
25 forall(dtype 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) struct __small_array
39#endif
40
41#ifdef __cforall
42 // forall(otype T | sized(T))
43 // static inline void ?{}(__small_array(T) & this) {}
44
45 forall(dtype 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(dtype 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(dtype T | sized(T))
56 static inline T* begin( const __small_array(T) & this ) {
57 return ((typeof(this.data))this.data);
58 }
59
60 forall(dtype 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(dtype T) {
72 T*& get_next( T& );
73 };
74#endif
75
76//-----------------------------------------------------------------------------
77// Stack
78//-----------------------------------------------------------------------------
79#ifdef __cforall
80 forall(dtype 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(dtype T)
98 static inline void ?{}( __stack(T) & this ) {
99 (this.top){ NULL };
100 }
101
102 forall(dtype T | is_node(T) | sized(T))
103 static inline 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 forall(dtype T | is_node(T) | sized(T))
110 static inline T * pop( __stack(T) & this ) {
111 T * top = this.top;
112 if( top ) {
113 this.top = get_next( *top );
114 get_next( *top ) = NULL;
115 }
116 return top;
117 }
118
119 forall(dtype T | is_node(T))
120 static inline int ?!=?( const __stack(T) & this, __attribute__((unused)) zero_t zero ) {
121 return this.top != 0;
122 }
123#endif
124
125//-----------------------------------------------------------------------------
126// Queue
127//-----------------------------------------------------------------------------
128#ifdef __cforall
129 forall(dtype TYPE)
130 #define T TYPE
131#else
132 #define T void
133#endif
134struct __queue {
135 T * head;
136 T ** tail;
137};
138#undef T
139
140#ifdef __cforall
141#define __queue_t(T) __queue(T)
142#else
143#define __queue_t(T) struct __queue
144#endif
145
146#ifdef __cforall
147
148 forall(dtype T)
149 static inline void ?{}( __queue(T) & this ) with( this ) {
150 head{ NULL };
151 tail{ &head };
152 }
153
154 forall(dtype T | is_node(T) | sized(T))
155 static inline void append( __queue(T) & this, T * val ) with( this ) {
156 verify(tail != NULL);
157 *tail = val;
158 tail = &get_next( *val );
159 }
160
161 forall(dtype T | is_node(T) | sized(T))
162 static inline T * pop_head( __queue(T) & this ) {
163 T * head = this.head;
164 if( head ) {
165 this.head = get_next( *head );
166 if( !get_next( *head ) ) {
167 this.tail = &this.head;
168 }
169 get_next( *head ) = NULL;
170 }
171 return head;
172 }
173
174 forall(dtype T | is_node(T) | sized(T))
175 static inline T * remove( __queue(T) & this, T ** it ) with( this ) {
176 T * val = *it;
177 verify( val );
178
179 (*it) = get_next( *val );
180
181 if( tail == &get_next( *val ) ) {
182 tail = it;
183 }
184
185 get_next( *val ) = NULL;
186
187 verify( (head == NULL) == (&head == tail) );
188 verify( *tail == NULL );
189 return val;
190 }
191
192 forall(dtype T | is_node(T))
193 static inline int ?!=?( const __queue(T) & this, __attribute__((unused)) zero_t zero ) {
194 return this.head != 0;
195 }
196#endif
197
198
199//-----------------------------------------------------------------------------
200// Doubly Linked List
201//-----------------------------------------------------------------------------
202#ifdef __cforall
203 forall(dtype TYPE)
204 #define T TYPE
205 #define __getter_t * [T * & next, T * & prev] ( T & )
206#else
207 typedef void (*__generit_c_getter_t)();
208 #define T void
209 #define __getter_t __generit_c_getter_t
210#endif
211struct __dllist {
212 T * head;
213 __getter_t __get;
214};
215#undef T
216#undef __getter_t
217
218#ifdef __cforall
219#define __dllist_t(T) __dllist(T)
220#else
221#define __dllist_t(T) struct __dllist
222#endif
223
224#ifdef __cforall
225
226 forall(dtype T | sized(T))
227 static inline [void] ?{}( __dllist(T) & this, * [T * & next, T * & prev] ( T & ) __get ) {
228 this.head{ NULL };
229 this.__get = __get;
230 }
231
232 #define next 0
233 #define prev 1
234 forall(dtype T | sized(T))
235 static inline void push_front( __dllist(T) & this, T & node ) with( this ) {
236 verify(__get);
237 if ( head ) {
238 __get( node ).next = head;
239 __get( node ).prev = __get( *head ).prev;
240 // inserted node must be consistent before it is seen
241 // prevent code movement across barrier
242 asm( "" : : : "memory" );
243 __get( *head ).prev = &node;
244 T & _prev = *__get( node ).prev;
245 __get( _prev ).next = &node;
246 }
247 else {
248 __get( node ).next = &node;
249 __get( node ).prev = &node;
250 }
251
252 // prevent code movement across barrier
253 asm( "" : : : "memory" );
254 head = &node;
255 }
256
257 forall(dtype T | sized(T))
258 static inline void remove( __dllist(T) & this, T & node ) with( this ) {
259 verify(__get);
260 if ( &node == head ) {
261 if ( __get( *head ).next == head ) {
262 head = NULL;
263 }
264 else {
265 head = __get( *head ).next;
266 }
267 }
268 __get( *__get( node ).next ).prev = __get( node ).prev;
269 __get( *__get( node ).prev ).next = __get( node ).next;
270 __get( node ).next = NULL;
271 __get( node ).prev = NULL;
272 }
273
274 forall(dtype T | sized(T))
275 static inline int ?!=?( const __dllist(T) & this, __attribute__((unused)) zero_t zero ) {
276 return this.head != 0;
277 }
278 #undef next
279 #undef prev
280#endif
281
282//-----------------------------------------------------------------------------
283// Tools
284//-----------------------------------------------------------------------------
285#ifdef __cforall
286
287#endif
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