a68g-common.h
1 //! @file a68g-common.h
2 //! @author J. Marcel van der Veer
3
4 //! @section Copyright
5 //!
6 //! This file is part of Algol68G - an Algol 68 compiler-interpreter.
7 //! Copyright 2001-2025 J. Marcel van der Veer [algol68g@xs4all.nl].
8
9 //! @section License
10 //!
11 //! This program is free software; you can redistribute it and/or modify it
12 //! under the terms of the GNU General Public License as published by the
13 //! Free Software Foundation; either version 3 of the License, or
14 //! (at your option) any later version.
15 //!
16 //! This program is distributed in the hope that it will be useful, but
17 //! WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
18 //! or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
19 //! more details. You should have received a copy of the GNU General Public
20 //! License along with this program. If not, see [http://www.gnu.org/licenses/].
21
22 //! @section Synopsis
23 //!
24 //! Common definitions.
25
26 #if !defined (__A68G_COMMON_H__)
27 #define __A68G_COMMON_H__
28
29 typedef struct MODULE_T MODULE_T;
30 struct MODULE_T
31 {
32 BOOL_T tree_listing_safe, cross_reference_safe;
33 FILES_T files;
34 int error_count, warning_count, source_scan;
35 jmp_buf rendez_vous;
36 LINE_T *top_line;
37 MOID_T *top_moid, *standenv_moid;
38 NODE_T *top_node;
39 OPTIONS_T options;
40 PROP_T global_prop;
41 REFINEMENT_T *top_refinement;
42 struct
43 {
44 LINE_T *save_l;
45 char *save_s, save_c;
46 } scan_state;
47 };
48
49 typedef struct MODE_CACHE_T MODE_CACHE_T;
50 #define MODE(p) A68 (a68_modes.p)
51 struct MODE_CACHE_T
52 {
53 MOID_T *proc_bool;
54 MOID_T *proc_char;
55 MOID_T *proc_complex_complex;
56 MOID_T *proc_int;
57 MOID_T *proc_int_int;
58 MOID_T *proc_int_int_real;
59 MOID_T *proc_int_real;
60 MOID_T *proc_int_real_real;
61 MOID_T *proc_int_real_real_real;
62 MOID_T *proc_real;
63 MOID_T *proc_real_int_real;
64 MOID_T *proc_real_real;
65 MOID_T *proc_real_real_int_real;
66 MOID_T *proc_real_real_real;
67 MOID_T *proc_real_real_real_int;
68 MOID_T *proc_real_real_real_real;
69 MOID_T *proc_real_real_real_real_real;
70 MOID_T *proc_real_real_real_real_real_real;
71 MOID_T *proc_real_ref_real_ref_int_void;
72 MOID_T *proc_void;
73 };
74
75 #define MAX_OPEN_FILES 64 // Some OS's won't open more than this number
76 #define MAX_TRANSPUT_BUFFER (MAX_OPEN_FILES)
77
78 typedef struct FILE_ENTRY FILE_ENTRY;
79 struct FILE_ENTRY
80 {
81 NODE_T *pos;
82 BOOL_T is_open, is_tmp;
83 FILE_T fd;
84 A68_REF idf;
85 };
86
87 // Administration for common (sub) expression elimination.
88 // BOOK keeps track of already seen (temporary) variables and denotations.
89
90 enum
91 { BOOK_NONE = 0, BOOK_DECL, BOOK_INIT, BOOK_DEREF, BOOK_ARRAY, BOOK_COMPILE };
92
93 typedef struct BOOK_T BOOK_T;
94 struct BOOK_T
95 {
96 int action, phase;
97 char *idf;
98 void *info;
99 int number;
100 };
101
102 typedef struct UNIC_T UNIC_T;
103 struct UNIC_T
104 {
105 char *fun;
106 };
107
108
109 #define A68(z) (common.z)
110 #define A68_JOB A68 (job)
111 #define A68_STANDENV A68 (standenv)
112 #define A68_MCACHE(z) A68 (mode_cache.z)
113
114 #define A68_SP A68 (stack_pointer)
115 #define A68_FP A68 (frame_pointer)
116 #define A68_HP A68 (heap_pointer)
117 #define A68_GLOBALS A68 (global_pointer)
118 #define A68_STACK A68 (stack_segment)
119 #define A68_HEAP A68 (heap_segment)
120 #define A68_HANDLES A68 (handle_segment)
121
122 typedef struct GC_GLOBALS_T GC_GLOBALS_T;
123 #define A68_GC(z) A68 (gc.z)
124 struct GC_GLOBALS_T
125 {
126 A68_HANDLE *available_handles, *busy_handles;
127 UNSIGNED_T free_handles, max_handles, sweeps, refused, freed, total;
128 unt preemptive, sema;
129 REAL_T seconds;
130 };
131
132 typedef struct INDENT_GLOBALS_T INDENT_GLOBALS_T;
133 #define A68_INDENT(z) A68 (indent.z)
134 struct INDENT_GLOBALS_T
135 {
136 FILE_T fd;
137 int ind, col;
138 int indentation;
139 BOOL_T use_folder;
140 };
141
142 #define MON_STACK_SIZE 32
143
144 typedef struct MONITOR_GLOBALS_T MONITOR_GLOBALS_T;
145 #define A68_MON(z) A68 (mon.z)
146 struct MONITOR_GLOBALS_T
147 {
148 ADDR_T finish_frame_pointer;
149 BOOL_T in_monitor;
150 BOOL_T prompt_set;
151 BUFFER prompt, symbol, error_text, expr;
152 char *watchpoint_expression;
153 int break_proc_level;
154 int current_frame;
155 int max_row_elems;
156 int mon_errors;
157 int _m_sp;
158 int pos, attr;
159 int tabs;
160 MOID_T *_m_stack[MON_STACK_SIZE];
161 };
162
163 typedef struct MP_GLOBALS_T MP_GLOBALS_T;
164 #define A68_MP(z) A68 (mp.z)
165
166 struct MP_GLOBALS_T
167 {
168 int mp_gamma_size;
169 int mp_ln_10_size;
170 int mp_ln_scale_size;
171 int mp_one_size;
172 int mp_pi_size;
173 int varying_mp_digits;
174 MP_T *mp_180_over_pi;
175 MP_T **mp_gam_ck;
176 MP_T *mp_half_pi;
177 MP_T *mp_ln_10;
178 MP_T *mp_ln_pi;
179 MP_T *mp_ln_scale;
180 MP_T *mp_one;
181 MP_T *mp_pi;
182 MP_T *mp_pi_over_180;
183 MP_T *mp_sqrt_pi;
184 MP_T *mp_sqrt_two_pi;
185 MP_T *mp_two_pi;
186 };
187
188 #define MAX_BOOK 1024
189 #define MAX_UNIC 2048
190
191 typedef struct OPTIMISER_GLOBALS_T OPTIMISER_GLOBALS_T;
192 #define A68_OPT(z) A68 (optimiser.z)
193 struct OPTIMISER_GLOBALS_T
194 {
195 BOOK_T cse_book[MAX_BOOK];
196 BOOL_T put_idf_comma;
197 DEC_T *root_idf;
198 int code_errors;
199 int cse_pointer;
200 int indentation;
201 int OPTION_CODE_LEVEL;
202 int procedures;
203 int unic_pointer;
204 UNIC_T unic_functions[MAX_UNIC];
205 };
206
207 #if defined (BUILD_PARALLEL_CLAUSE)
208
209 typedef struct A68_STACK_DESCRIPTOR A68_STACK_DESCRIPTOR;
210 typedef struct A68_THREAD_CONTEXT A68_THREAD_CONTEXT;
211
212 struct A68_STACK_DESCRIPTOR
213 {
214 ADDR_T cur_ptr, ini_ptr;
215 BYTE_T *swap, *start;
216 int bytes;
217 };
218
219 struct A68_THREAD_CONTEXT
220 {
221 A68_STACK_DESCRIPTOR stack, frame;
222 BOOL_T active;
223 BYTE_T *thread_stack_offset;
224 int stack_used;
225 NODE_T *unit;
226 pthread_t parent, id;
227 };
228
229 // Set an upper limit for number of threads.
230 // Note that _POSIX_THREAD_THREADS_MAX may be ULONG_MAX.
231
232 #define THREAD_LIMIT 256
233
234 #if defined (_POSIX_THREAD_THREADS_MAX)
235 #if ((_POSIX_THREAD_THREADS_MAX) < THREAD_LIMIT)
236 #define THREAD_MAX (_POSIX_THREAD_THREADS_MAX)
237 #else
238 #define THREAD_MAX (THREAD_LIMIT)
239 #endif
240 #else
241 #define THREAD_MAX (THREAD_LIMIT)
242 #endif
243
244 typedef struct PARALLEL_GLOBALS_T PARALLEL_GLOBALS_T;
245 #define A68_PAR(z) A68 (parallel.z)
246 struct PARALLEL_GLOBALS_T
247 {
248 A68_THREAD_CONTEXT context[THREAD_MAX];
249 ADDR_T fp0, sp0;
250 BOOL_T abend_all_threads, exit_from_threads;
251 int context_index;
252 int par_return_code;
253 jmp_buf *jump_buffer;
254 NODE_T *jump_label;
255 pthread_mutex_t unit_sema;
256 pthread_t main_thread_id;
257 pthread_t parent_thread_id;
258 };
259
260 #endif
261
262 typedef struct PARSER_GLOBALS_T PARSER_GLOBALS_T;
263 #define A68_PARSER(z) A68 (parser.z)
264 struct PARSER_GLOBALS_T
265 {
266 TAG_T *error_tag;
267 BOOL_T stop_scanner, read_error, no_preprocessing;
268 char *scan_buf;
269 int max_scan_buf_length, source_file_size;
270 int reductions;
271 int tag_number;
272 jmp_buf bottom_up_crash_exit, top_down_crash_exit;
273 };
274
275 typedef struct GLOBALS_T GLOBALS_T;
276
277 struct GLOBALS_T
278 {
279 A68_CHANNEL stand_draw_channel, stand_error_channel, associate_channel, skip_channel;
280 A68_CHANNEL stand_in_channel, stand_out_channel, stand_back_channel;
281 A68_PROCEDURE on_gc_event;
282 A68_REF stand_in, stand_out, stand_back, stand_error, skip_file;
283 ADDR_T fixed_heap_pointer, temp_heap_pointer;
284 ADDR_T frame_pointer, stack_pointer, heap_pointer, global_pointer;
285 ADDR_T frame_start, frame_end, stack_start, stack_end;
286 BOOL_T close_tty_on_exit;
287 BOOL_T curses_mode;
288 BOOL_T do_confirm_exit;
289 BOOL_T halt_typing;
290 BOOL_T heap_is_fluid;
291 BOOL_T in_execution;
292 BOOL_T in_monitor;
293 BOOL_T no_warnings;
294 BYTE_T *stack_segment, *heap_segment, *handle_segment;
295 BYTE_T *system_stack_offset;
296 BUFFER a68_cmd_name;
297 char **argv;
298 char *f_plugin;
299 char *marker[BUFFER_SIZE];
300 BUFFER output_line, edit_line, input_line;
301 clock_t clock_res;
302 FILE_ENTRY file_entries[MAX_OPEN_FILES];
303 GC_GLOBALS_T gc;
304 INDENT_GLOBALS_T indent;
305 int argc;
306 int chars_in_stderr, chars_in_stdout;
307 int global_level, max_lex_lvl;
308 int max_simplout_size;
309 int new_nodes, new_modes, new_postulates, new_node_infos, new_genie_infos;
310 int ret_code, ret_line_number, ret_char_number;
311 int symbol_table_count, mode_count;
312 int term_heigth, term_width;
313 jmp_buf genie_exit_label;
314 KEYWORD_T *top_keyword;
315 MODE_CACHE_T mode_cache;
316 MODES_T a68_modes;
317 MODULE_T job;
318 MONITOR_GLOBALS_T mon;
319 MP_GLOBALS_T mp;
320 NODE_T *f_entry;
321 NODE_T **node_register;
322 OPTIMISER_GLOBALS_T optimiser;
323 OPTIONS_T *options;
324 PARSER_GLOBALS_T parser;
325 POSTULATE_T *postulates, *top_postulate, *top_postulate_list;
326 REAL_T cputime_0;
327 SOID_T *top_soid_list;
328 TABLE_T *standenv;
329 TAG_T *error_tag;
330 TOKEN_T *top_token;
331 unt frame_stack_size, expr_stack_size, heap_size, handle_pool_size, stack_size;
332 unt stack_limit, frame_stack_limit, expr_stack_limit;
333 unt storage_overhead;
334 #if defined (BUILD_PARALLEL_CLAUSE)
335 PARALLEL_GLOBALS_T parallel;
336 #endif
337 };
338
339 extern GLOBALS_T common;
340
341 #endif
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© 2002-2025 J.M. van der Veer (jmvdveer@xs4all.nl)
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