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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 | #include "gate/objects.h" | ||
| 29 | #include "gate/strings.h" | ||
| 30 | #include "gate/atomics.h" | ||
| 31 | #include "gate/memalloc.h" | ||
| 32 | #include "gate/results.h" | ||
| 33 | |||
| 34 | typedef struct gate_runnable_dispatcher_class | ||
| 35 | { | ||
| 36 | GATE_INTERFACE_VTBL(gate_runnable) const* vtbl; | ||
| 37 | gate_atomic_int_t ref_counter; | ||
| 38 | gate_entrypoint_t func_ptr; | ||
| 39 | void* func_param; | ||
| 40 | gate_mem_dtor_t func_param_release; | ||
| 41 | gate_c_maxalign_t param_copy_begin; | ||
| 42 | } gate_runnable_dispatcher_t; | ||
| 43 | |||
| 44 | 1 | static void gate_runnable_dispatcher_release_impl(void* self) | |
| 45 | { | ||
| 46 | 1 | gate_runnable_dispatcher_t* disp = (gate_runnable_dispatcher_t*)self; | |
| 47 |
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1 | if (gate_atomic_int_dec(&disp->ref_counter) == 0) |
| 48 | { | ||
| 49 |
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1 | if (NULL != disp->func_param_release) |
| 50 | { | ||
| 51 | ✗ | disp->func_param_release(disp->func_param); | |
| 52 | } | ||
| 53 | 1 | gate_mem_dealloc(disp); | |
| 54 | } | ||
| 55 | 1 | } | |
| 56 | ✗ | static int gate_runnable_dispatcher_retain_impl(void* self) | |
| 57 | { | ||
| 58 | ✗ | gate_runnable_dispatcher_t* disp = (gate_runnable_dispatcher_t*)self; | |
| 59 | ✗ | return gate_atomic_int_inc(&disp->ref_counter); | |
| 60 | } | ||
| 61 | ✗ | static char const* gate_runnable_dispatcher_interface_name_impl(void* self) | |
| 62 | { | ||
| 63 | (void)self; | ||
| 64 | ✗ | return GATE_INTERFACE_NAME_RUNNABLE; | |
| 65 | } | ||
| 66 | 1 | static gate_result_t gate_runnable_dispatcher_run(void* self) | |
| 67 | { | ||
| 68 | 1 | gate_runnable_dispatcher_t* disp = (gate_runnable_dispatcher_t*)self; | |
| 69 | 1 | gate_result_t ret = disp->func_ptr(disp->func_param); | |
| 70 | 1 | return ret; | |
| 71 | } | ||
| 72 | |||
| 73 | static GATE_INTERFACE_VTBL(gate_runnable) gate_runnable_dispatcher_vtbl; | ||
| 74 | 1 | static void gate_init_runnable_dispatcher_vtbl() | |
| 75 | { | ||
| 76 |
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1 | if (!gate_runnable_dispatcher_vtbl.get_interface_name) |
| 77 | { | ||
| 78 | GATE_INTERFACE_VTBL(gate_runnable) const local_vtbl = | ||
| 79 | { | ||
| 80 | &gate_runnable_dispatcher_interface_name_impl, | ||
| 81 | &gate_runnable_dispatcher_release_impl, | ||
| 82 | &gate_runnable_dispatcher_retain_impl, | ||
| 83 | |||
| 84 | &gate_runnable_dispatcher_run | ||
| 85 | }; | ||
| 86 | 1 | gate_runnable_dispatcher_vtbl = local_vtbl; | |
| 87 | } | ||
| 88 | 1 | } | |
| 89 | |||
| 90 | 1 | gate_runnable_t* gate_runnable_create(gate_entrypoint_t function, | |
| 91 | void* param, | ||
| 92 | gate_size_t param_copy_length, | ||
| 93 | gate_mem_copyctor_t param_copy_constructor, | ||
| 94 | gate_mem_dtor_t param_destructor) | ||
| 95 | { | ||
| 96 | 1 | gate_runnable_t* ret = NULL; | |
| 97 | 1 | gate_runnable_dispatcher_t* runnable = NULL; | |
| 98 | 1 | gate_size_t runnable_size = sizeof(gate_runnable_dispatcher_t) + param_copy_length; | |
| 99 | gate_result_t result; | ||
| 100 | |||
| 101 | do | ||
| 102 | { | ||
| 103 | 1 | runnable = (gate_runnable_dispatcher_t*)gate_mem_alloc(runnable_size); | |
| 104 |
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1 | if (NULL == runnable) |
| 105 | { | ||
| 106 | ✗ | break; | |
| 107 | } | ||
| 108 | 1 | gate_mem_clear(runnable, runnable_size); | |
| 109 | 1 | gate_init_runnable_dispatcher_vtbl(); | |
| 110 | 1 | runnable->vtbl = &gate_runnable_dispatcher_vtbl; | |
| 111 | 1 | gate_atomic_int_init(&runnable->ref_counter, 1); | |
| 112 | 1 | runnable->func_ptr = function; | |
| 113 |
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1 | if (param_copy_length == 0) |
| 114 | { | ||
| 115 | /* parameter is external pointer */ | ||
| 116 | 1 | runnable->func_param = param; | |
| 117 | 1 | runnable->func_param_release = NULL; | |
| 118 | } | ||
| 119 | else | ||
| 120 | { | ||
| 121 | /* parameter copied and embedded into runnable allocation block */ | ||
| 122 | ✗ | gate_mem_copy(&runnable->param_copy_begin, param, param_copy_length); | |
| 123 | ✗ | runnable->func_param = &runnable->param_copy_begin; | |
| 124 | ✗ | runnable->func_param_release = param_destructor; | |
| 125 | ✗ | if (NULL != param_copy_constructor) | |
| 126 | { | ||
| 127 | ✗ | result = param_copy_constructor(&runnable->param_copy_begin, param); | |
| 128 | ✗ | GATE_BREAK_IF_FAILED(result); | |
| 129 | } | ||
| 130 | } | ||
| 131 | |||
| 132 | /* success case, runnable ready to use */ | ||
| 133 | 1 | ret = (gate_runnable_t*)runnable; | |
| 134 | } while (0); | ||
| 135 | |||
| 136 | 1 | return ret; | |
| 137 | } | ||
| 138 | |||
| 139 | |||
| 140 | |||
| 141 | 4 | gate_result_t gate_object_ptr_copyctor(void* dest, void const* src) | |
| 142 | { | ||
| 143 | 4 | gate_object_t* const* ptr_src = (gate_object_t* const*)src; | |
| 144 | 4 | gate_object_t** ptr_dest = (gate_object_t**)dest; | |
| 145 | |||
| 146 | 4 | *ptr_dest = *ptr_src; | |
| 147 |
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4 | if (*ptr_dest != NULL) |
| 148 | { | ||
| 149 | 4 | gate_object_retain(*ptr_dest); | |
| 150 | } | ||
| 151 | 4 | return GATE_RESULT_OK; | |
| 152 | } | ||
| 153 | |||
| 154 | 4 | void gate_object_ptr_dtor(void* dest) | |
| 155 | { | ||
| 156 | 4 | gate_object_t** ptr_dest = (gate_object_t**)dest; | |
| 157 |
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4 | if (*ptr_dest != NULL) |
| 158 | { | ||
| 159 | 4 | gate_object_release(*ptr_dest); | |
| 160 | } | ||
| 161 | 4 | } | |
| 162 | |||
| 163 | 13 | gate_bool_t gate_object_implements_interface(gate_object_t* obj, char const* interface_name) | |
| 164 | { | ||
| 165 | 13 | char const* obj_if_name = gate_object_get_interface_name(obj); | |
| 166 | 13 | gate_size_t obj_if_name_len = gate_str_length(obj_if_name); | |
| 167 | 13 | gate_size_t interface_name_len = gate_str_length(interface_name); | |
| 168 |
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13 | if (gate_str_starts_with(obj_if_name, obj_if_name_len, interface_name, interface_name_len)) |
| 169 | { | ||
| 170 |
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8 | if (obj_if_name_len > interface_name_len) |
| 171 | { | ||
| 172 | 4 | return (obj_if_name[interface_name_len] == GATE_INTERFACE_NAME_SEPARATOR_CHAR); | |
| 173 | } | ||
| 174 | else | ||
| 175 | { | ||
| 176 | 4 | return true; | |
| 177 | } | ||
| 178 | } | ||
| 179 | 5 | return false; | |
| 180 | } | ||
| 181 | |||
| 182 | |||
| 183 | |||
| 184 | typedef struct gate_memoryblock_impl_class | ||
| 185 | { | ||
| 186 | GATE_INTERFACE_VTBL(gate_memoryblock) const* vtbl; | ||
| 187 | gate_atomic_int_t ref_counter; | ||
| 188 | gate_size_t size; | ||
| 189 | union | ||
| 190 | { | ||
| 191 | gate_c_maxalign_t content_alignment; | ||
| 192 | char content[1]; | ||
| 193 | }; | ||
| 194 | |||
| 195 | } gate_memoryblock_impl_t; | ||
| 196 | |||
| 197 | 1 | static char const* memoryblock_interface_name(void* self) | |
| 198 | { | ||
| 199 | (void)self; | ||
| 200 | 1 | return GATE_INTERFACE_NAME_MEMORYBLOCK; | |
| 201 | } | ||
| 202 | 10 | static void memoryblock_release(void* obj) | |
| 203 | { | ||
| 204 | 10 | gate_memoryblock_impl_t* self = (gate_memoryblock_impl_t*)obj; | |
| 205 |
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10 | if (gate_atomic_int_dec(&self->ref_counter) == 0) |
| 206 | { | ||
| 207 | 4 | gate_mem_dealloc(self); | |
| 208 | } | ||
| 209 | 10 | } | |
| 210 | 6 | static int memoryblock_retain(void* obj) | |
| 211 | { | ||
| 212 | 6 | gate_memoryblock_impl_t* self = (gate_memoryblock_impl_t*)obj; | |
| 213 | 6 | return gate_atomic_int_inc(&self->ref_counter); | |
| 214 | } | ||
| 215 | |||
| 216 | 6 | static gate_size_t memoryblock_size(void* obj) | |
| 217 | { | ||
| 218 | 6 | gate_memoryblock_impl_t* self = (gate_memoryblock_impl_t*)obj; | |
| 219 | 6 | return self->size; | |
| 220 | } | ||
| 221 | 9 | static void* memoryblock_get(void* obj) | |
| 222 | { | ||
| 223 | 9 | gate_memoryblock_impl_t* self = (gate_memoryblock_impl_t*)obj; | |
| 224 | 9 | return &self->content[0]; | |
| 225 | } | ||
| 226 | |||
| 227 | static GATE_INTERFACE_VTBL(gate_memoryblock) gate_memoryblock_vtbl; | ||
| 228 | 4 | static void gate_init_memoryblock_vtbl() | |
| 229 | { | ||
| 230 |
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4 | if (!gate_memoryblock_vtbl.get_interface_name) |
| 231 | { | ||
| 232 | GATE_INTERFACE_VTBL(gate_memoryblock) const local_vtbl = | ||
| 233 | { | ||
| 234 | &memoryblock_interface_name, | ||
| 235 | &memoryblock_release, | ||
| 236 | &memoryblock_retain, | ||
| 237 | |||
| 238 | &memoryblock_size, | ||
| 239 | &memoryblock_get | ||
| 240 | }; | ||
| 241 | 1 | gate_memoryblock_vtbl = local_vtbl; | |
| 242 | } | ||
| 243 | 4 | } | |
| 244 | |||
| 245 | |||
| 246 | 4 | gate_memoryblock_t* gate_memoryblock_create(size_t data_length) | |
| 247 | { | ||
| 248 | 4 | gate_memoryblock_impl_t* ret = NULL; | |
| 249 | 4 | gate_size_t real_length = sizeof(gate_memoryblock_impl_t); | |
| 250 |
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4 | if (data_length > sizeof(gate_c_maxalign_t)) |
| 251 | { | ||
| 252 | 1 | real_length += (data_length - sizeof(gate_c_maxalign_t)); | |
| 253 | } | ||
| 254 | 4 | ret = (gate_memoryblock_impl_t*)gate_mem_alloc(real_length); | |
| 255 |
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4 | if (ret) |
| 256 | { | ||
| 257 | 4 | gate_init_memoryblock_vtbl(); | |
| 258 | 4 | ret->vtbl = &gate_memoryblock_vtbl; | |
| 259 | 4 | gate_atomic_int_init(&ret->ref_counter, 1); | |
| 260 | 4 | ret->size = data_length; | |
| 261 | } | ||
| 262 | 4 | return (gate_memoryblock_t*)ret; | |
| 263 | } | ||
| 264 |