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|---|---|---|---|
| 1 | /* GATE PROJECT LICENSE: | ||
| 2 | +----------------------------------------------------------------------------+ | ||
| 3 | | Copyright(c) 2018-2025, Stefan Meislinger <sm@opengate.at> | | ||
| 4 | | All rights reserved. | | ||
| 5 | | | | ||
| 6 | | Redistribution and use in source and binary forms, with or without | | ||
| 7 | | modification, are permitted provided that the following conditions are met:| | ||
| 8 | | | | ||
| 9 | | 1. Redistributions of source code must retain the above copyright notice, | | ||
| 10 | | this list of conditions and the following disclaimer. | | ||
| 11 | | 2. Redistributions in binary form must reproduce the above copyright | | ||
| 12 | | notice, this list of conditions and the following disclaimer in the | | ||
| 13 | | documentation and/or other materials provided with the distribution. | | ||
| 14 | | | | ||
| 15 | | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"| | ||
| 16 | | AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | | ||
| 17 | | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | | ||
| 18 | | ARE DISCLAIMED.IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | | ||
| 19 | | LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | | ||
| 20 | | CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | | ||
| 21 | | SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | | ||
| 22 | | INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | | ||
| 23 | | CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | | ||
| 24 | | ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF | | ||
| 25 | | THE POSSIBILITY OF SUCH DAMAGE. | | ||
| 26 | +----------------------------------------------------------------------------+ | ||
| 27 | */ | ||
| 28 | |||
| 29 | #include "gate/wrappers.h" | ||
| 30 | #include "gate/memalloc.h" | ||
| 31 | #include "gate/results.h" | ||
| 32 | #include "gate/atomics.h" | ||
| 33 | #include "gate/typeids.h" | ||
| 34 | #include "gate/strings.h" | ||
| 35 | #include "gate/arrays.h" | ||
| 36 | #include "gate/blobs.h" | ||
| 37 | #include "gate/structs.h" | ||
| 38 | #include "gate/objects.h" | ||
| 39 | #include "gate/properties.h" | ||
| 40 | |||
| 41 | |||
| 42 | 12 | gate_bool_t gate_wrapper_type_info_init(gate_wrapper_type_info_t* ptr_info, gate_type_id_t from_type_id) | |
| 43 | { | ||
| 44 |
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12 | if (!ptr_info) |
| 45 | { | ||
| 46 | ✗ | return false; | |
| 47 | } | ||
| 48 | |||
| 49 | 12 | ptr_info->size = gate_type_length(from_type_id); | |
| 50 | 12 | ptr_info->type_descriptor = gate_type_signature(from_type_id); | |
| 51 | 12 | ptr_info->cctor = NULL; | |
| 52 | 12 | ptr_info->dtor = NULL; | |
| 53 | |||
| 54 |
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12 | switch (from_type_id) |
| 55 | { | ||
| 56 | 1 | case GATE_TYPE_STRING: | |
| 57 | 1 | ptr_info->cctor = &gate_string_copy_constructor; | |
| 58 | 1 | ptr_info->dtor = &gate_string_destructor; | |
| 59 | 1 | break; | |
| 60 | ✗ | case GATE_TYPE_ARRAY: | |
| 61 | ✗ | ptr_info->cctor = &gate_array_copy_constructor; | |
| 62 | ✗ | ptr_info->dtor = &gate_array_destructor; | |
| 63 | ✗ | break; | |
| 64 | ✗ | case GATE_TYPE_BLOB: | |
| 65 | ✗ | ptr_info->cctor = &gate_blob_copy_constructor; | |
| 66 | ✗ | ptr_info->dtor = &gate_blob_destructor; | |
| 67 | ✗ | break; | |
| 68 | ✗ | case GATE_TYPE_STRUCT: | |
| 69 | ✗ | ptr_info->cctor = &gate_struct_copy_constructor; | |
| 70 | ✗ | ptr_info->dtor = &gate_struct_destructor; | |
| 71 | ✗ | break; | |
| 72 | ✗ | case GATE_TYPE_OBJECT: | |
| 73 | ✗ | ptr_info->cctor = &gate_object_ptr_copyctor; | |
| 74 | ✗ | ptr_info->dtor = &gate_object_ptr_dtor; | |
| 75 | ✗ | break; | |
| 76 | ✗ | case GATE_TYPE_PROPERTY: | |
| 77 | ✗ | ptr_info->cctor = &gate_property_copy_constructor; | |
| 78 | ✗ | ptr_info->dtor = &gate_property_destructor; | |
| 79 | ✗ | break; | |
| 80 | 11 | default: | |
| 81 | { | ||
| 82 |
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11 | if (from_type_id & GATE_TYPE_ARRAYLIST) |
| 83 | { | ||
| 84 | ✗ | ptr_info->cctor = &gate_arraylist_copy_constructor; | |
| 85 | ✗ | ptr_info->dtor = &gate_arraylist_destructor; | |
| 86 | ✗ | break; | |
| 87 | } | ||
| 88 | } | ||
| 89 | } | ||
| 90 | |||
| 91 |
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12 | return (ptr_info->type_descriptor || ptr_info->size || ptr_info->cctor || ptr_info->dtor); |
| 92 | } | ||
| 93 | |||
| 94 | typedef struct gate_wrapper_impl_class | ||
| 95 | { | ||
| 96 | GATE_INTERFACE_VTBL(gate_wrapper) const* vtbl; | ||
| 97 | gate_atomic_int_t ref_counter; | ||
| 98 | gate_mem_dtor_t dtor; /* destructor of object content */ | ||
| 99 | gate_mem_dtor_t dtor_mem; /* destructor of object memory ('free'-function) */ | ||
| 100 | gate_size_t sz; | ||
| 101 | void const* type; | ||
| 102 | void* ptr; | ||
| 103 | gate_c_maxalign_t obj; | ||
| 104 | } gate_wrapper_impl_t; | ||
| 105 | |||
| 106 | ✗ | static char const* gate_wrapper_get_interface_name_impl(void* obj) | |
| 107 | { | ||
| 108 | (void)obj; | ||
| 109 | ✗ | return GATE_INTERFACE_NAME_WRAPPER; | |
| 110 | } | ||
| 111 | 7 | static void gate_wrapper_release_impl(void* obj) | |
| 112 | { | ||
| 113 | 7 | gate_wrapper_impl_t* wrapper = (gate_wrapper_impl_t*)obj; | |
| 114 |
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7 | if (0 == gate_atomic_int_dec(&wrapper->ref_counter)) |
| 115 | { | ||
| 116 | 2 | gate_mem_destruct(wrapper->ptr, wrapper->dtor); | |
| 117 |
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2 | if (wrapper->dtor_mem) |
| 118 | { | ||
| 119 | ✗ | wrapper->dtor_mem(wrapper->ptr); | |
| 120 | } | ||
| 121 | 2 | gate_mem_dealloc(wrapper); | |
| 122 | } | ||
| 123 | 7 | } | |
| 124 | 5 | static int gate_wrapper_retain_impl(void* obj) | |
| 125 | { | ||
| 126 | 5 | gate_wrapper_impl_t* wrapper = (gate_wrapper_impl_t*)obj; | |
| 127 | 5 | return gate_atomic_int_inc(&wrapper->ref_counter); | |
| 128 | } | ||
| 129 | |||
| 130 | ✗ | static gate_size_t gate_wrapper_get_size_impl(void* obj) | |
| 131 | { | ||
| 132 | ✗ | gate_wrapper_impl_t* wrapper = (gate_wrapper_impl_t*)obj; | |
| 133 | ✗ | return wrapper->sz; | |
| 134 | } | ||
| 135 | |||
| 136 | 2 | static void* gate_wrapper_get_content_impl(void* obj) | |
| 137 | { | ||
| 138 | 2 | gate_wrapper_impl_t* wrapper = (gate_wrapper_impl_t*)obj; | |
| 139 | 2 | return wrapper->ptr; | |
| 140 | } | ||
| 141 | |||
| 142 | |||
| 143 | ✗ | static void const* gate_wrapper_get_type_impl(void* obj) | |
| 144 | { | ||
| 145 | ✗ | gate_wrapper_impl_t* wrapper = (gate_wrapper_impl_t*)obj; | |
| 146 | ✗ | return wrapper->type; | |
| 147 | } | ||
| 148 | ✗ | static gate_bool_t gate_wrapper_is_type_impl(void* obj, void const* compare_with) | |
| 149 | { | ||
| 150 | ✗ | gate_wrapper_impl_t* wrapper = (gate_wrapper_impl_t*)obj; | |
| 151 | ✗ | return wrapper->type == compare_with; | |
| 152 | } | ||
| 153 | |||
| 154 | static GATE_INTERFACE_VTBL(gate_wrapper) gate_wrapper_vtbl; | ||
| 155 | 2 | static void gate_init_wrapper_vtbl() | |
| 156 | { | ||
| 157 |
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2 | if (!gate_wrapper_vtbl.get_interface_name) |
| 158 | { | ||
| 159 | GATE_INTERFACE_VTBL(gate_wrapper) const local_vtbl = | ||
| 160 | { | ||
| 161 | &gate_wrapper_get_interface_name_impl, | ||
| 162 | &gate_wrapper_release_impl, | ||
| 163 | &gate_wrapper_retain_impl, | ||
| 164 | |||
| 165 | &gate_wrapper_get_size_impl, | ||
| 166 | &gate_wrapper_get_content_impl, | ||
| 167 | |||
| 168 | &gate_wrapper_get_type_impl, | ||
| 169 | &gate_wrapper_is_type_impl | ||
| 170 | }; | ||
| 171 | 2 | gate_wrapper_vtbl = local_vtbl; | |
| 172 | } | ||
| 173 | 2 | } | |
| 174 | |||
| 175 | |||
| 176 | 2 | gate_wrapper_t* gate_wrapper_create_new(gate_size_t obj_size, void const* type, gate_mem_dtor_t dtor) | |
| 177 | { | ||
| 178 | 2 | gate_wrapper_impl_t* wrapper = (gate_wrapper_impl_t*)gate_mem_alloc(sizeof(gate_wrapper_impl_t) + obj_size); | |
| 179 | |||
| 180 |
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2 | if (wrapper) |
| 181 | { | ||
| 182 | 2 | gate_mem_clear(wrapper, sizeof(gate_wrapper_impl_t) + obj_size); | |
| 183 | 2 | gate_init_wrapper_vtbl(); | |
| 184 | 2 | wrapper->vtbl = &gate_wrapper_vtbl; | |
| 185 | 2 | gate_atomic_int_init(&wrapper->ref_counter, 1); | |
| 186 | 2 | wrapper->sz = obj_size; | |
| 187 | 2 | wrapper->type = type; | |
| 188 | 2 | wrapper->dtor = dtor; | |
| 189 | 2 | wrapper->dtor_mem = NULL; /* object is part of wrapper, no external mem-free */ | |
| 190 | 2 | wrapper->ptr = &wrapper->obj; /* object is part of wrapper */ | |
| 191 | } | ||
| 192 | |||
| 193 | 2 | return (gate_wrapper_t*)wrapper; | |
| 194 | } | ||
| 195 | 2 | gate_wrapper_t* gate_wrapper_create(void* obj, gate_size_t obj_size, void const* type, gate_mem_dtor_t dtor_obj, gate_mem_dtor_t dtor_mem) | |
| 196 | { | ||
| 197 | 2 | gate_wrapper_impl_t* wrapper = (gate_wrapper_impl_t*)gate_wrapper_create_new(0, type, dtor_obj); | |
| 198 |
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2 | if (wrapper) |
| 199 | { | ||
| 200 | 2 | wrapper->ptr = obj; /* object is referenced by external pointer */ | |
| 201 | 2 | wrapper->sz = obj_size; | |
| 202 | 2 | wrapper->dtor_mem = dtor_mem; /* external mem-free required */ | |
| 203 | } | ||
| 204 | 2 | return (gate_wrapper_t*)wrapper; | |
| 205 | } | ||
| 206 | |||
| 207 | ✗ | gate_wrapper_t* gate_wrapper_create_type(gate_wrapper_type_info_t const* type_info, void const* src) | |
| 208 | { | ||
| 209 | ✗ | gate_wrapper_impl_t* wrapper = (gate_wrapper_impl_t*)gate_wrapper_create_new(type_info->size, type_info->type_descriptor, type_info->dtor); | |
| 210 | gate_result_t result; | ||
| 211 | ✗ | if (wrapper != NULL) | |
| 212 | { | ||
| 213 | ✗ | result = gate_mem_copy_construct(wrapper->ptr, src, type_info->size, type_info->cctor); | |
| 214 | ✗ | if (GATE_FAILED(result)) | |
| 215 | { | ||
| 216 | ✗ | gate_mem_dealloc(wrapper); | |
| 217 | ✗ | wrapper = NULL; | |
| 218 | } | ||
| 219 | } | ||
| 220 | ✗ | return (gate_wrapper_t*)wrapper; | |
| 221 | } | ||
| 222 | |||
| 223 | |||
| 224 | |||
| 225 | |||
| 226 | |||
| 227 | typedef struct gate_variant_impl_class | ||
| 228 | { | ||
| 229 | GATE_INTERFACE_VTBL(gate_variant) const* vtbl; | ||
| 230 | gate_atomic_int_t ref_counter; | ||
| 231 | void* ptr_content; | ||
| 232 | gate_wrapper_type_info_t* ptr_type; | ||
| 233 | gate_size_t type_infos_count; | ||
| 234 | gate_wrapper_type_info_t type_infos[1]; | ||
| 235 | } gate_variant_impl_t; | ||
| 236 | |||
| 237 | ✗ | static char const* gate_variant_get_interface_name_impl(void* obj) | |
| 238 | { | ||
| 239 | (void)obj; | ||
| 240 | ✗ | return GATE_INTERFACE_NAME_VARIANT; | |
| 241 | } | ||
| 242 | 2 | static void gate_variant_release_impl(void* obj) | |
| 243 | { | ||
| 244 | 2 | gate_variant_impl_t* self = (gate_variant_impl_t*)obj; | |
| 245 |
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2 | if (0 == gate_atomic_int_dec(&self->ref_counter)) |
| 246 | { | ||
| 247 |
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1 | if (self->ptr_type && self->ptr_type->dtor) |
| 248 | { | ||
| 249 | 1 | self->ptr_type->dtor(self->ptr_content); | |
| 250 | } | ||
| 251 | 1 | gate_mem_dealloc(self); | |
| 252 | } | ||
| 253 | 2 | } | |
| 254 | 1 | static int gate_variant_retain_impl(void* obj) | |
| 255 | { | ||
| 256 | 1 | gate_variant_impl_t* self = (gate_variant_impl_t*)obj; | |
| 257 | 1 | return gate_atomic_int_inc(&self->ref_counter); | |
| 258 | } | ||
| 259 | |||
| 260 | 12 | static gate_size_t gate_variant_get_size_impl(void* obj) | |
| 261 | { | ||
| 262 | 12 | gate_variant_impl_t* self = (gate_variant_impl_t*)obj; | |
| 263 |
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12 | if (self->ptr_type) |
| 264 | { | ||
| 265 | 12 | return self->ptr_type->size; | |
| 266 | } | ||
| 267 | ✗ | return 0; | |
| 268 | } | ||
| 269 | 12 | static void* gate_variant_get_content_impl(void* obj) | |
| 270 | { | ||
| 271 | 12 | gate_variant_impl_t* self = (gate_variant_impl_t*)obj; | |
| 272 | 12 | return self->ptr_content; | |
| 273 | } | ||
| 274 | |||
| 275 | 12 | static void const* gate_variant_get_type_impl(void* obj) | |
| 276 | { | ||
| 277 | 12 | gate_variant_impl_t* self = (gate_variant_impl_t*)obj; | |
| 278 |
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12 | if (self->ptr_type) |
| 279 | { | ||
| 280 | 12 | return self->ptr_type->type_descriptor; | |
| 281 | } | ||
| 282 | ✗ | return NULL; | |
| 283 | } | ||
| 284 | ✗ | static gate_bool_t gate_variant_is_type_impl(void* obj, void const* compare_with) | |
| 285 | { | ||
| 286 | ✗ | gate_variant_impl_t* self = (gate_variant_impl_t*)obj; | |
| 287 | ✗ | if (self->ptr_type) | |
| 288 | { | ||
| 289 | ✗ | return compare_with == self->ptr_type->type_descriptor; | |
| 290 | } | ||
| 291 | ✗ | return false; | |
| 292 | } | ||
| 293 | |||
| 294 | 12 | static gate_result_t gate_variant_set_content_impl(void* obj, void const* ptr_content, gate_size_t size, void const* ptr_type) | |
| 295 | { | ||
| 296 | 12 | gate_variant_impl_t* self = (gate_variant_impl_t*)obj; | |
| 297 | 12 | gate_result_t ret = GATE_RESULT_INCORRECTTYPE; | |
| 298 | gate_size_t ndx; | ||
| 299 | gate_wrapper_type_info_t* ptr_type_info; | ||
| 300 | |||
| 301 |
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78 | for (ndx = 0; ndx != self->type_infos_count; ++ndx) |
| 302 | { | ||
| 303 | 78 | ptr_type_info = &self->type_infos[ndx]; | |
| 304 |
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78 | if ((ptr_type_info->size == size) |
| 305 |
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22 | && (ptr_type_info->type_descriptor == ptr_type)) |
| 306 | { | ||
| 307 |
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12 | if (self->ptr_type) |
| 308 | { | ||
| 309 | 12 | gate_mem_destruct(self->ptr_content, self->ptr_type->dtor); | |
| 310 | } | ||
| 311 | 12 | ret = gate_mem_copy_construct(self->ptr_content, ptr_content, ptr_type_info->size, ptr_type_info->cctor); | |
| 312 |
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12 | if (GATE_FAILED(ret)) |
| 313 | { | ||
| 314 | ✗ | self->ptr_type = NULL; | |
| 315 | } | ||
| 316 | else | ||
| 317 | { | ||
| 318 | 12 | self->ptr_type = ptr_type_info; | |
| 319 | } | ||
| 320 | 12 | break; | |
| 321 | } | ||
| 322 | } | ||
| 323 | 12 | return ret; | |
| 324 | } | ||
| 325 | |||
| 326 | |||
| 327 | static GATE_INTERFACE_VTBL(gate_variant) gate_variant_vtbl; | ||
| 328 | 1 | static void gate_init_variant_vtbl() | |
| 329 | { | ||
| 330 |
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1 | if (!gate_variant_vtbl.get_interface_name) |
| 331 | { | ||
| 332 | GATE_INTERFACE_VTBL(gate_variant) const local_vtbl = | ||
| 333 | { | ||
| 334 | &gate_variant_get_interface_name_impl, | ||
| 335 | &gate_variant_release_impl, | ||
| 336 | &gate_variant_retain_impl, | ||
| 337 | |||
| 338 | &gate_variant_get_size_impl, | ||
| 339 | &gate_variant_get_content_impl, | ||
| 340 | |||
| 341 | &gate_variant_get_type_impl, | ||
| 342 | &gate_variant_is_type_impl, | ||
| 343 | |||
| 344 | &gate_variant_set_content_impl | ||
| 345 | }; | ||
| 346 | 1 | gate_variant_vtbl = local_vtbl; | |
| 347 | } | ||
| 348 | 1 | } | |
| 349 | |||
| 350 | |||
| 351 | 1 | gate_variant_t* gate_variant_create(gate_wrapper_type_info_t const* ptr_types, gate_size_t types_count) | |
| 352 | { | ||
| 353 | gate_size_t ndx; | ||
| 354 | 1 | gate_size_t max_content_size = 0; | |
| 355 | 1 | gate_variant_impl_t* impl = NULL; | |
| 356 | 1 | gate_variant_t* ret = NULL; | |
| 357 | |||
| 358 | do | ||
| 359 | { | ||
| 360 |
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13 | for (ndx = 0; ndx != types_count; ++ndx) |
| 361 | { | ||
| 362 |
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12 | if (ptr_types[ndx].size > max_content_size) |
| 363 | { | ||
| 364 | 5 | max_content_size = ptr_types[ndx].size; | |
| 365 | } | ||
| 366 | } | ||
| 367 | |||
| 368 | 1 | impl = (gate_variant_impl_t*)gate_mem_alloc(sizeof(gate_variant_impl_t) + sizeof(gate_wrapper_type_info_t) * types_count + max_content_size); | |
| 369 |
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1 | if (!impl) |
| 370 | { | ||
| 371 | ✗ | break; | |
| 372 | } | ||
| 373 | 1 | gate_mem_clear(impl, sizeof(gate_variant_impl_t)); | |
| 374 | 1 | gate_init_variant_vtbl(); | |
| 375 | 1 | impl->vtbl = &gate_variant_vtbl; | |
| 376 | 1 | gate_atomic_int_init(&impl->ref_counter, 1); | |
| 377 | 1 | gate_mem_copy(&impl->type_infos[0], ptr_types, sizeof(gate_wrapper_type_info_t) * types_count); | |
| 378 | 1 | impl->ptr_content = &impl->type_infos[types_count]; | |
| 379 | 1 | impl->ptr_type = &impl->type_infos[0]; | |
| 380 | 1 | impl->type_infos_count = types_count; | |
| 381 | 1 | ret = (gate_variant_t*)impl; | |
| 382 | 1 | impl = NULL; | |
| 383 | } while (0); | ||
| 384 | |||
| 385 |
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1 | if (impl != NULL) |
| 386 | { | ||
| 387 | ✗ | gate_object_release(impl); | |
| 388 | } | ||
| 389 | 1 | return ret; | |
| 390 | } | ||
| 391 |