| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | Copyright 2022, 2025 Joel Svensson svenssonjoel@yahoo.se | ||
| 3 | |||
| 4 | This program is free software: you can redistribute it and/or modify | ||
| 5 | it under the terms of the GNU General Public License as published by | ||
| 6 | the Free Software Foundation, either version 3 of the License, or | ||
| 7 | (at your option) any later version. | ||
| 8 | |||
| 9 | This program is distributed in the hope that it will be useful, | ||
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 12 | GNU General Public License for more details. | ||
| 13 | |||
| 14 | You should have received a copy of the GNU General Public License | ||
| 15 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
| 16 | */ | ||
| 17 | |||
| 18 | #include "lbm_c_interop.h" | ||
| 19 | |||
| 20 | /* Utility */ | ||
| 21 | |||
| 22 | 22390 | static bool lift_char_channel(lbm_char_channel_t *chan , lbm_value *res) { | |
| 23 | 22390 | lbm_value cell = lbm_heap_allocate_cell(LBM_TYPE_CHANNEL, (lbm_uint) chan, ENC_SYM_CHANNEL_TYPE); | |
| 24 | 22390 | bool rval = false; | |
| 25 |
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22390 | if (cell != ENC_SYM_MERROR) { |
| 26 | 22390 | *res = cell; | |
| 27 | 22390 | rval = true; | |
| 28 | } | ||
| 29 | 22390 | return rval; | |
| 30 | } | ||
| 31 | |||
| 32 | |||
| 33 | |||
| 34 | /****************************************************/ | ||
| 35 | /* Interface for loading and running programs and */ | ||
| 36 | /* expressions */ | ||
| 37 | |||
| 38 | 22390 | lbm_cid eval_cps_load_and_eval(lbm_char_channel_t *tokenizer, bool program, bool incremental, char *name) { | |
| 39 | |||
| 40 | lbm_value stream; | ||
| 41 | 22390 | lbm_cid cid = -1; | |
| 42 |
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22390 | if (lift_char_channel(tokenizer, &stream)) { |
| 43 | 22390 | lbm_value read_mode = ENC_SYM_READ; | |
| 44 |
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22390 | if (program) { |
| 45 |
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22390 | if (incremental) { |
| 46 | 11372 | read_mode = ENC_SYM_READ_AND_EVAL_PROGRAM; | |
| 47 | } else { | ||
| 48 | 11018 | read_mode = ENC_SYM_READ_PROGRAM; | |
| 49 | } | ||
| 50 | } | ||
| 51 | /* | ||
| 52 | read-eval-program finishes with the result of the final expression in | ||
| 53 | the program. This should not be passed to eval-program as it is most likely | ||
| 54 | not a program. Even if it is a program, its not one we want to evaluate. | ||
| 55 | */ | ||
| 56 | |||
| 57 | /* LISP ZONE */ | ||
| 58 | 22390 | lbm_value launcher = lbm_cons(stream, ENC_SYM_NIL); | |
| 59 | 22390 | launcher = lbm_cons(read_mode, launcher); | |
| 60 | lbm_value evaluator; | ||
| 61 | lbm_value start_prg; | ||
| 62 |
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22390 | if (read_mode == ENC_SYM_READ) { |
| 63 | ✗ | evaluator = lbm_cons(launcher, ENC_SYM_NIL); | |
| 64 | ✗ | evaluator = lbm_cons(ENC_SYM_EVAL, evaluator); | |
| 65 | ✗ | start_prg = lbm_cons(evaluator, ENC_SYM_NIL); | |
| 66 |
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22390 | } else if (read_mode == ENC_SYM_READ_PROGRAM) { |
| 67 | 11018 | evaluator = lbm_cons(launcher, ENC_SYM_NIL); | |
| 68 | 11018 | evaluator = lbm_cons(ENC_SYM_EVAL_PROGRAM, evaluator); | |
| 69 | 11018 | start_prg = lbm_cons(evaluator, ENC_SYM_NIL); | |
| 70 | } else { // ENC_SYM_READ_AND_EVAL_PROGRAM | ||
| 71 | 11372 | evaluator = launcher; // dummy so check below passes | |
| 72 | 11372 | start_prg = lbm_cons(launcher, ENC_SYM_NIL); | |
| 73 | } | ||
| 74 | |||
| 75 | /* LISP ZONE ENDS */ | ||
| 76 | |||
| 77 |
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44780 | if (lbm_type_of(launcher) == LBM_TYPE_CONS && |
| 78 |
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44780 | lbm_type_of(evaluator) == LBM_TYPE_CONS && |
| 79 | 22390 | lbm_type_of(start_prg) == LBM_TYPE_CONS ) { | |
| 80 | 22390 | cid = lbm_create_ctx(start_prg, ENC_SYM_NIL, 256, name); | |
| 81 | } | ||
| 82 | } | ||
| 83 | 22390 | return cid; | |
| 84 | } | ||
| 85 | |||
| 86 | ✗ | lbm_cid eval_cps_load_and_define(lbm_char_channel_t *tokenizer, char *symbol, bool program) { | |
| 87 | lbm_value stream; | ||
| 88 | ✗ | lbm_cid cid = -1; | |
| 89 | ✗ | if (lift_char_channel(tokenizer, &stream)) { | |
| 90 | lbm_uint sym_id; | ||
| 91 | ✗ | if (lbm_get_symbol_by_name(symbol, &sym_id) || | |
| 92 | ✗ | lbm_add_symbol_base(symbol, &sym_id)) { | |
| 93 | /* LISP ZONE */ | ||
| 94 | ✗ | lbm_value launcher = lbm_cons(stream, lbm_enc_sym(SYM_NIL)); | |
| 95 | ✗ | launcher = lbm_cons(lbm_enc_sym(program ? SYM_READ_PROGRAM : SYM_READ), launcher); | |
| 96 | ✗ | lbm_value binding = lbm_cons(launcher, lbm_enc_sym(SYM_NIL)); | |
| 97 | ✗ | binding = lbm_cons(lbm_enc_sym(sym_id), binding); | |
| 98 | ✗ | lbm_value definer = lbm_cons(lbm_enc_sym(SYM_DEFINE), binding); | |
| 99 | ✗ | definer = lbm_cons(definer, lbm_enc_sym(SYM_NIL)); | |
| 100 | /* LISP ZONE ENDS */ | ||
| 101 | |||
| 102 | ✗ | if (lbm_type_of(launcher) == LBM_TYPE_CONS && | |
| 103 | ✗ | lbm_type_of(binding) == LBM_TYPE_CONS && | |
| 104 | ✗ | lbm_type_of(definer) == LBM_TYPE_CONS ) { | |
| 105 | ✗ | cid = lbm_create_ctx(definer, lbm_enc_sym(SYM_NIL), 256, NULL); | |
| 106 | } | ||
| 107 | } | ||
| 108 | } | ||
| 109 | ✗ | return cid; | |
| 110 | } | ||
| 111 | |||
| 112 | ✗ | lbm_cid lbm_eval_defined(char *symbol, bool program) { | |
| 113 | |||
| 114 | lbm_uint sym_id; | ||
| 115 | lbm_value binding; | ||
| 116 | ✗ | lbm_cid cid = -1; | |
| 117 | ✗ | if (lbm_get_symbol_by_name(symbol, &sym_id) && | |
| 118 | ✗ | lbm_global_env_lookup(&binding, lbm_enc_sym(sym_id))) { | |
| 119 | |||
| 120 | /* LISP ZONE */ | ||
| 121 | ✗ | lbm_value launcher = lbm_cons(lbm_enc_sym(sym_id), lbm_enc_sym(SYM_NIL)); | |
| 122 | ✗ | lbm_value evaluator = launcher; | |
| 123 | ✗ | evaluator = lbm_cons(lbm_enc_sym(program ? SYM_EVAL_PROGRAM : SYM_EVAL), evaluator); | |
| 124 | ✗ | lbm_value start_prg = lbm_cons(evaluator, lbm_enc_sym(SYM_NIL)); | |
| 125 | /* LISP ZONE ENDS */ | ||
| 126 | |||
| 127 | ✗ | if (lbm_type_of(launcher) == LBM_TYPE_CONS && | |
| 128 | ✗ | lbm_type_of(evaluator) == LBM_TYPE_CONS && | |
| 129 | ✗ | lbm_type_of(start_prg) == LBM_TYPE_CONS ) { | |
| 130 | ✗ | cid = lbm_create_ctx(start_prg, lbm_enc_sym(SYM_NIL), 256, NULL); | |
| 131 | } | ||
| 132 | } | ||
| 133 | ✗ | return cid; | |
| 134 | } | ||
| 135 | |||
| 136 | |||
| 137 | |||
| 138 | ✗ | lbm_cid lbm_load_and_eval_expression(lbm_char_channel_t *tokenizer) { | |
| 139 | ✗ | return eval_cps_load_and_eval(tokenizer, false,false, NULL); | |
| 140 | } | ||
| 141 | |||
| 142 | ✗ | lbm_cid lbm_load_and_define_expression(lbm_char_channel_t *tokenizer, char *symbol) { | |
| 143 | ✗ | return eval_cps_load_and_define(tokenizer, symbol, false); | |
| 144 | } | ||
| 145 | |||
| 146 | 11018 | lbm_cid lbm_load_and_eval_program(lbm_char_channel_t *tokenizer, char *name) { | |
| 147 | 11018 | return eval_cps_load_and_eval(tokenizer, true, false, name); | |
| 148 | } | ||
| 149 | |||
| 150 | 11372 | lbm_cid lbm_load_and_eval_program_incremental(lbm_char_channel_t *tokenizer, char *name) { | |
| 151 | 11372 | return eval_cps_load_and_eval(tokenizer, true, true, name); | |
| 152 | } | ||
| 153 | |||
| 154 | ✗ | lbm_cid lbm_load_and_define_program(lbm_char_channel_t *tokenizer, char *symbol) { | |
| 155 | ✗ | return eval_cps_load_and_define(tokenizer, symbol, true); | |
| 156 | } | ||
| 157 | |||
| 158 | ✗ | lbm_cid lbm_eval_defined_expression(char *symbol) { | |
| 159 | ✗ | return lbm_eval_defined(symbol, false); | |
| 160 | } | ||
| 161 | |||
| 162 | ✗ | lbm_cid lbm_eval_defined_program(char *symbol) { | |
| 163 | ✗ | return lbm_eval_defined(symbol, true); | |
| 164 | } | ||
| 165 | |||
| 166 | ✗ | int lbm_send_message(lbm_cid cid, lbm_value msg) { | |
| 167 | ✗ | int res = 0; | |
| 168 | |||
| 169 | ✗ | if (lbm_get_eval_state() == EVAL_CPS_STATE_PAUSED) { | |
| 170 | |||
| 171 | ✗ | if (lbm_find_receiver_and_send(cid, msg)) { | |
| 172 | ✗ | res = 1; | |
| 173 | } | ||
| 174 | } | ||
| 175 | ✗ | return res; | |
| 176 | } | ||
| 177 | |||
| 178 | ✗ | int lbm_define(char *symbol, lbm_value value) { | |
| 179 | ✗ | int res = 0; | |
| 180 | ✗ | if (symbol) { | |
| 181 | lbm_uint sym_id; | ||
| 182 | ✗ | if (lbm_get_eval_state() == EVAL_CPS_STATE_PAUSED) { | |
| 183 | ✗ | if (lbm_get_symbol_by_name(symbol, &sym_id) || | |
| 184 | ✗ | lbm_add_symbol_const_base(symbol, &sym_id, false)) { | |
| 185 | ✗ | lbm_uint ix_key = sym_id & GLOBAL_ENV_MASK; | |
| 186 | ✗ | lbm_value *glob_env = lbm_get_global_env(); | |
| 187 | ✗ | glob_env[ix_key] = lbm_env_set(glob_env[ix_key], lbm_enc_sym(sym_id), value); | |
| 188 | ✗ | res = 1; | |
| 189 | } | ||
| 190 | } | ||
| 191 | } | ||
| 192 | ✗ | return res; | |
| 193 | } | ||
| 194 | |||
| 195 | ✗ | int lbm_undefine(char *symbol) { | |
| 196 | lbm_uint sym_id; | ||
| 197 | ✗ | int res = 0; | |
| 198 | ✗ | if (symbol && lbm_get_symbol_by_name(symbol, &sym_id)) { | |
| 199 | |||
| 200 | ✗ | lbm_value *glob_env = lbm_get_global_env(); | |
| 201 | ✗ | lbm_uint ix_key = sym_id & GLOBAL_ENV_MASK; | |
| 202 | ✗ | lbm_value new_env = lbm_env_drop_binding(glob_env[ix_key], lbm_enc_sym(sym_id)); | |
| 203 | |||
| 204 | ✗ | if (new_env != ENC_SYM_NOT_FOUND) { | |
| 205 | ✗ | glob_env[ix_key] = new_env; | |
| 206 | ✗ | res = 1; | |
| 207 | } | ||
| 208 | } | ||
| 209 | ✗ | return res; | |
| 210 | } | ||
| 211 | |||
| 212 | ✗ | int lbm_share_array(lbm_value *value, char *data, lbm_uint num_elt) { | |
| 213 | ✗ | return lbm_lift_array(value, data, num_elt); | |
| 214 | } | ||
| 215 | |||
| 216 | 56 | static bool share_array_const(lbm_value flash_cell, char *data, lbm_uint num_elt) { | |
| 217 | lbm_array_header_t flash_array_header; | ||
| 218 | 56 | flash_array_header.size = num_elt; | |
| 219 | 56 | flash_array_header.data = (lbm_uint*)data; | |
| 220 | lbm_uint flash_array_header_ptr; | ||
| 221 | 56 | lbm_flash_status s = lbm_write_const_raw((lbm_uint*)&flash_array_header, | |
| 222 | sizeof(lbm_array_header_t) / sizeof(lbm_uint), | ||
| 223 | &flash_array_header_ptr); | ||
| 224 |
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56 | if (s != LBM_FLASH_WRITE_OK) return false; |
| 225 | 56 | s = write_const_car(flash_cell, flash_array_header_ptr); | |
| 226 |
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56 | if (s != LBM_FLASH_WRITE_OK) return false; |
| 227 | 56 | s = write_const_cdr(flash_cell, ENC_SYM_ARRAY_TYPE); | |
| 228 |
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56 | if (s != LBM_FLASH_WRITE_OK) return false; |
| 229 | 56 | return true; | |
| 230 | } | ||
| 231 | |||
| 232 | 56 | int lbm_share_array_const(lbm_value *res, char *flash_ptr, lbm_uint num_elt) { | |
| 233 | 56 | lbm_value arr = LBM_PTR_BIT | LBM_TYPE_ARRAY; | |
| 234 | 56 | lbm_value flash_arr = 0; | |
| 235 | 56 | int r = 0; | |
| 236 |
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56 | if (request_flash_storage_cell(arr, &flash_arr) == LBM_FLASH_WRITE_OK) { |
| 237 |
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56 | if (share_array_const(flash_arr, flash_ptr, num_elt)) { |
| 238 | 56 | *res = flash_arr; | |
| 239 | 56 | r = 1; | |
| 240 | } | ||
| 241 | } | ||
| 242 | 56 | return r; | |
| 243 | } | ||
| 244 | |||
| 245 | // TODO: There is no NULL check in lbm_heap_allocate_array. | ||
| 246 | // Users must provide a valid pointer. | ||
| 247 | 138489 | int lbm_create_array(lbm_value *value, lbm_uint num_elt) { | |
| 248 | 138489 | return lbm_heap_allocate_array(value, num_elt); | |
| 249 | } | ||
| 250 | |||
| 251 | |||
| 252 | ✗ | void lbm_clear_env(void) { | |
| 253 | |||
| 254 | ✗ | lbm_value *env = lbm_get_global_env(); | |
| 255 | ✗ | for (int i = 0; i < GLOBAL_ENV_ROOTS; i ++) { | |
| 256 | ✗ | env[i] = ENC_SYM_NIL; | |
| 257 | } | ||
| 258 | ✗ | lbm_perform_gc(); | |
| 259 | ✗ | } | |
| 260 | |||
| 261 | // Evaluator should be paused when running this. | ||
| 262 | // Running gc will reclaim the fv storage. | ||
| 263 | ✗ | bool lbm_flatten_env(int index, lbm_uint** data, lbm_uint *size) { | |
| 264 | ✗ | if (index < 0 || index >= GLOBAL_ENV_ROOTS) return false; | |
| 265 | ✗ | lbm_value *env = lbm_get_global_env(); | |
| 266 | |||
| 267 | ✗ | lbm_value fv = flatten_value(env[index]); | |
| 268 | |||
| 269 | ✗ | if (lbm_is_symbol(fv)) return false; | |
| 270 | |||
| 271 | ✗ | lbm_array_header_t *array = lbm_dec_array_r(fv); | |
| 272 | ✗ | bool rval = false; | |
| 273 | ✗ | if (array) { | |
| 274 | ✗ | *size = array->size; | |
| 275 | ✗ | *data = array->data; | |
| 276 | ✗ | rval = true; | |
| 277 | } | ||
| 278 | ✗ | return rval; | |
| 279 | } | ||
| 280 |