Gan likun / The prosthetic control

The prosthetic control（MIT）

platform/mbed_critical.c@0:20e0c61e0684, 2022-06-23 (annotated)

Committer:
ganlikun
Date:
Thu Jun 23 05:23:34 2022 +0000
Revision:
0:20e0c61e0684
01

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ganlikun 0:20e0c61e0684 1 /*
ganlikun 0:20e0c61e0684 2 * Copyright (c) 2015-2016, ARM Limited, All Rights Reserved
ganlikun 0:20e0c61e0684 3 * SPDX-License-Identifier: Apache-2.0
ganlikun 0:20e0c61e0684 4 *
ganlikun 0:20e0c61e0684 5 * Licensed under the Apache License, Version 2.0 (the "License"); you may
ganlikun 0:20e0c61e0684 6 * not use this file except in compliance with the License.
ganlikun 0:20e0c61e0684 7 * You may obtain a copy of the License at
ganlikun 0:20e0c61e0684 8 *
ganlikun 0:20e0c61e0684 9 * http://www.apache.org/licenses/LICENSE-2.0
ganlikun 0:20e0c61e0684 10 *
ganlikun 0:20e0c61e0684 11 * Unless required by applicable law or agreed to in writing, software
ganlikun 0:20e0c61e0684 12 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
ganlikun 0:20e0c61e0684 13 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
ganlikun 0:20e0c61e0684 14 * See the License for the specific language governing permissions and
ganlikun 0:20e0c61e0684 15 * limitations under the License.
ganlikun 0:20e0c61e0684 16 */
ganlikun 0:20e0c61e0684 17
ganlikun 0:20e0c61e0684 18 /* Declare __STDC_LIMIT_MACROS so stdint.h defines UINT32_MAX when using C++ */
ganlikun 0:20e0c61e0684 19 #define __STDC_LIMIT_MACROS
ganlikun 0:20e0c61e0684 20 #include "platform/mbed_critical.h"
ganlikun 0:20e0c61e0684 21
ganlikun 0:20e0c61e0684 22 #include "cmsis.h"
ganlikun 0:20e0c61e0684 23 #include "platform/mbed_assert.h"
ganlikun 0:20e0c61e0684 24 #include "platform/mbed_toolchain.h"
ganlikun 0:20e0c61e0684 25
ganlikun 0:20e0c61e0684 26 static volatile uint32_t interrupt_enable_counter = 0;
ganlikun 0:20e0c61e0684 27 static volatile bool critical_interrupts_disabled = false;
ganlikun 0:20e0c61e0684 28
ganlikun 0:20e0c61e0684 29 bool core_util_are_interrupts_enabled(void)
ganlikun 0:20e0c61e0684 30 {
ganlikun 0:20e0c61e0684 31 #if defined(__CORTEX_A9)
ganlikun 0:20e0c61e0684 32 return ((__get_CPSR() & 0x80) == 0);
ganlikun 0:20e0c61e0684 33 #else
ganlikun 0:20e0c61e0684 34 return ((__get_PRIMASK() & 0x1) == 0);
ganlikun 0:20e0c61e0684 35 #endif
ganlikun 0:20e0c61e0684 36 }
ganlikun 0:20e0c61e0684 37
ganlikun 0:20e0c61e0684 38 bool core_util_is_isr_active(void)
ganlikun 0:20e0c61e0684 39 {
ganlikun 0:20e0c61e0684 40 #if defined(__CORTEX_A9)
ganlikun 0:20e0c61e0684 41 switch(__get_CPSR() & 0x1FU) {
ganlikun 0:20e0c61e0684 42 case MODE_USR:
ganlikun 0:20e0c61e0684 43 case MODE_SYS:
ganlikun 0:20e0c61e0684 44 return false;
ganlikun 0:20e0c61e0684 45 case MODE_SVC:
ganlikun 0:20e0c61e0684 46 default:
ganlikun 0:20e0c61e0684 47 return true;
ganlikun 0:20e0c61e0684 48 }
ganlikun 0:20e0c61e0684 49 #else
ganlikun 0:20e0c61e0684 50 return (__get_IPSR() != 0U);
ganlikun 0:20e0c61e0684 51 #endif
ganlikun 0:20e0c61e0684 52 }
ganlikun 0:20e0c61e0684 53
ganlikun 0:20e0c61e0684 54 MBED_WEAK void core_util_critical_section_enter(void)
ganlikun 0:20e0c61e0684 55 {
ganlikun 0:20e0c61e0684 56 bool interrupts_disabled = !core_util_are_interrupts_enabled();
ganlikun 0:20e0c61e0684 57 __disable_irq();
ganlikun 0:20e0c61e0684 58
ganlikun 0:20e0c61e0684 59 /* Save the interrupt disabled state as it was prior to any nested critical section lock use */
ganlikun 0:20e0c61e0684 60 if (!interrupt_enable_counter) {
ganlikun 0:20e0c61e0684 61 critical_interrupts_disabled = interrupts_disabled;
ganlikun 0:20e0c61e0684 62 }
ganlikun 0:20e0c61e0684 63
ganlikun 0:20e0c61e0684 64 /* If the interrupt_enable_counter overflows or we are in a nested critical section and interrupts
ganlikun 0:20e0c61e0684 65 are enabled, then something has gone badly wrong thus assert an error.
ganlikun 0:20e0c61e0684 66 */
ganlikun 0:20e0c61e0684 67 MBED_ASSERT(interrupt_enable_counter < UINT32_MAX);
ganlikun 0:20e0c61e0684 68 // FIXME
ganlikun 0:20e0c61e0684 69 #ifndef FEATURE_UVISOR
ganlikun 0:20e0c61e0684 70 if (interrupt_enable_counter > 0) {
ganlikun 0:20e0c61e0684 71 MBED_ASSERT(interrupts_disabled);
ganlikun 0:20e0c61e0684 72 }
ganlikun 0:20e0c61e0684 73 #else
ganlikun 0:20e0c61e0684 74 #warning "core_util_critical_section_enter needs fixing to work from unprivileged code"
ganlikun 0:20e0c61e0684 75 #endif /* FEATURE_UVISOR */
ganlikun 0:20e0c61e0684 76 interrupt_enable_counter++;
ganlikun 0:20e0c61e0684 77 }
ganlikun 0:20e0c61e0684 78
ganlikun 0:20e0c61e0684 79 MBED_WEAK void core_util_critical_section_exit(void)
ganlikun 0:20e0c61e0684 80 {
ganlikun 0:20e0c61e0684 81 /* If critical_section_enter has not previously been called, do nothing */
ganlikun 0:20e0c61e0684 82 if (interrupt_enable_counter) {
ganlikun 0:20e0c61e0684 83
ganlikun 0:20e0c61e0684 84 // FIXME
ganlikun 0:20e0c61e0684 85 #ifndef FEATURE_UVISOR
ganlikun 0:20e0c61e0684 86 bool interrupts_disabled = !core_util_are_interrupts_enabled(); /* get the current interrupt disabled state */
ganlikun 0:20e0c61e0684 87
ganlikun 0:20e0c61e0684 88 MBED_ASSERT(interrupts_disabled); /* Interrupts must be disabled on invoking an exit from a critical section */
ganlikun 0:20e0c61e0684 89 #else
ganlikun 0:20e0c61e0684 90 #warning "core_util_critical_section_exit needs fixing to work from unprivileged code"
ganlikun 0:20e0c61e0684 91 #endif /* FEATURE_UVISOR */
ganlikun 0:20e0c61e0684 92
ganlikun 0:20e0c61e0684 93 interrupt_enable_counter--;
ganlikun 0:20e0c61e0684 94
ganlikun 0:20e0c61e0684 95 /* Only re-enable interrupts if we are exiting the last of the nested critical sections and
ganlikun 0:20e0c61e0684 96 interrupts were enabled on entry to the first critical section.
ganlikun 0:20e0c61e0684 97 */
ganlikun 0:20e0c61e0684 98 if (!interrupt_enable_counter && !critical_interrupts_disabled) {
ganlikun 0:20e0c61e0684 99 __enable_irq();
ganlikun 0:20e0c61e0684 100 }
ganlikun 0:20e0c61e0684 101 }
ganlikun 0:20e0c61e0684 102 }
ganlikun 0:20e0c61e0684 103
ganlikun 0:20e0c61e0684 104 #if __EXCLUSIVE_ACCESS
ganlikun 0:20e0c61e0684 105
ganlikun 0:20e0c61e0684 106 /* Supress __ldrex and __strex deprecated warnings - "#3731-D: intrinsic is deprecated" */
ganlikun 0:20e0c61e0684 107 #if defined (__CC_ARM)
ganlikun 0:20e0c61e0684 108 #pragma diag_suppress 3731
ganlikun 0:20e0c61e0684 109 #endif
ganlikun 0:20e0c61e0684 110
ganlikun 0:20e0c61e0684 111 bool core_util_atomic_cas_u8(uint8_t *ptr, uint8_t *expectedCurrentValue, uint8_t desiredValue)
ganlikun 0:20e0c61e0684 112 {
ganlikun 0:20e0c61e0684 113 uint8_t currentValue = __LDREXB((volatile uint8_t*)ptr);
ganlikun 0:20e0c61e0684 114 if (currentValue != *expectedCurrentValue) {
ganlikun 0:20e0c61e0684 115 *expectedCurrentValue = currentValue;
ganlikun 0:20e0c61e0684 116 __CLREX();
ganlikun 0:20e0c61e0684 117 return false;
ganlikun 0:20e0c61e0684 118 }
ganlikun 0:20e0c61e0684 119
ganlikun 0:20e0c61e0684 120 return !__STREXB(desiredValue, (volatile uint8_t*)ptr);
ganlikun 0:20e0c61e0684 121 }
ganlikun 0:20e0c61e0684 122
ganlikun 0:20e0c61e0684 123 bool core_util_atomic_cas_u16(uint16_t *ptr, uint16_t *expectedCurrentValue, uint16_t desiredValue)
ganlikun 0:20e0c61e0684 124 {
ganlikun 0:20e0c61e0684 125 uint16_t currentValue = __LDREXH((volatile uint16_t*)ptr);
ganlikun 0:20e0c61e0684 126 if (currentValue != *expectedCurrentValue) {
ganlikun 0:20e0c61e0684 127 *expectedCurrentValue = currentValue;
ganlikun 0:20e0c61e0684 128 __CLREX();
ganlikun 0:20e0c61e0684 129 return false;
ganlikun 0:20e0c61e0684 130 }
ganlikun 0:20e0c61e0684 131
ganlikun 0:20e0c61e0684 132 return !__STREXH(desiredValue, (volatile uint16_t*)ptr);
ganlikun 0:20e0c61e0684 133 }
ganlikun 0:20e0c61e0684 134
ganlikun 0:20e0c61e0684 135
ganlikun 0:20e0c61e0684 136 bool core_util_atomic_cas_u32(uint32_t *ptr, uint32_t *expectedCurrentValue, uint32_t desiredValue)
ganlikun 0:20e0c61e0684 137 {
ganlikun 0:20e0c61e0684 138 uint32_t currentValue = __LDREXW((volatile uint32_t*)ptr);
ganlikun 0:20e0c61e0684 139 if (currentValue != *expectedCurrentValue) {
ganlikun 0:20e0c61e0684 140 *expectedCurrentValue = currentValue;
ganlikun 0:20e0c61e0684 141 __CLREX();
ganlikun 0:20e0c61e0684 142 return false;
ganlikun 0:20e0c61e0684 143 }
ganlikun 0:20e0c61e0684 144
ganlikun 0:20e0c61e0684 145 return !__STREXW(desiredValue, (volatile uint32_t*)ptr);
ganlikun 0:20e0c61e0684 146 }
ganlikun 0:20e0c61e0684 147
ganlikun 0:20e0c61e0684 148 uint8_t core_util_atomic_incr_u8(uint8_t *valuePtr, uint8_t delta)
ganlikun 0:20e0c61e0684 149 {
ganlikun 0:20e0c61e0684 150 uint8_t newValue;
ganlikun 0:20e0c61e0684 151 do {
ganlikun 0:20e0c61e0684 152 newValue = __LDREXB((volatile uint8_t*)valuePtr) + delta;
ganlikun 0:20e0c61e0684 153 } while (__STREXB(newValue, (volatile uint8_t*)valuePtr));
ganlikun 0:20e0c61e0684 154 return newValue;
ganlikun 0:20e0c61e0684 155 }
ganlikun 0:20e0c61e0684 156
ganlikun 0:20e0c61e0684 157 uint16_t core_util_atomic_incr_u16(uint16_t *valuePtr, uint16_t delta)
ganlikun 0:20e0c61e0684 158 {
ganlikun 0:20e0c61e0684 159 uint16_t newValue;
ganlikun 0:20e0c61e0684 160 do {
ganlikun 0:20e0c61e0684 161 newValue = __LDREXH((volatile uint16_t*)valuePtr) + delta;
ganlikun 0:20e0c61e0684 162 } while (__STREXH(newValue, (volatile uint16_t*)valuePtr));
ganlikun 0:20e0c61e0684 163 return newValue;
ganlikun 0:20e0c61e0684 164 }
ganlikun 0:20e0c61e0684 165
ganlikun 0:20e0c61e0684 166 uint32_t core_util_atomic_incr_u32(uint32_t *valuePtr, uint32_t delta)
ganlikun 0:20e0c61e0684 167 {
ganlikun 0:20e0c61e0684 168 uint32_t newValue;
ganlikun 0:20e0c61e0684 169 do {
ganlikun 0:20e0c61e0684 170 newValue = __LDREXW((volatile uint32_t*)valuePtr) + delta;
ganlikun 0:20e0c61e0684 171 } while (__STREXW(newValue, (volatile uint32_t*)valuePtr));
ganlikun 0:20e0c61e0684 172 return newValue;
ganlikun 0:20e0c61e0684 173 }
ganlikun 0:20e0c61e0684 174
ganlikun 0:20e0c61e0684 175
ganlikun 0:20e0c61e0684 176 uint8_t core_util_atomic_decr_u8(uint8_t *valuePtr, uint8_t delta)
ganlikun 0:20e0c61e0684 177 {
ganlikun 0:20e0c61e0684 178 uint8_t newValue;
ganlikun 0:20e0c61e0684 179 do {
ganlikun 0:20e0c61e0684 180 newValue = __LDREXB((volatile uint8_t*)valuePtr) - delta;
ganlikun 0:20e0c61e0684 181 } while (__STREXB(newValue, (volatile uint8_t*)valuePtr));
ganlikun 0:20e0c61e0684 182 return newValue;
ganlikun 0:20e0c61e0684 183 }
ganlikun 0:20e0c61e0684 184
ganlikun 0:20e0c61e0684 185 uint16_t core_util_atomic_decr_u16(uint16_t *valuePtr, uint16_t delta)
ganlikun 0:20e0c61e0684 186 {
ganlikun 0:20e0c61e0684 187 uint16_t newValue;
ganlikun 0:20e0c61e0684 188 do {
ganlikun 0:20e0c61e0684 189 newValue = __LDREXH((volatile uint16_t*)valuePtr) - delta;
ganlikun 0:20e0c61e0684 190 } while (__STREXH(newValue, (volatile uint16_t*)valuePtr));
ganlikun 0:20e0c61e0684 191 return newValue;
ganlikun 0:20e0c61e0684 192 }
ganlikun 0:20e0c61e0684 193
ganlikun 0:20e0c61e0684 194 uint32_t core_util_atomic_decr_u32(uint32_t *valuePtr, uint32_t delta)
ganlikun 0:20e0c61e0684 195 {
ganlikun 0:20e0c61e0684 196 uint32_t newValue;
ganlikun 0:20e0c61e0684 197 do {
ganlikun 0:20e0c61e0684 198 newValue = __LDREXW((volatile uint32_t*)valuePtr) - delta;
ganlikun 0:20e0c61e0684 199 } while (__STREXW(newValue, (volatile uint32_t*)valuePtr));
ganlikun 0:20e0c61e0684 200 return newValue;
ganlikun 0:20e0c61e0684 201 }
ganlikun 0:20e0c61e0684 202
ganlikun 0:20e0c61e0684 203 #else
ganlikun 0:20e0c61e0684 204
ganlikun 0:20e0c61e0684 205 bool core_util_atomic_cas_u8(uint8_t *ptr, uint8_t *expectedCurrentValue, uint8_t desiredValue)
ganlikun 0:20e0c61e0684 206 {
ganlikun 0:20e0c61e0684 207 bool success;
ganlikun 0:20e0c61e0684 208 uint8_t currentValue;
ganlikun 0:20e0c61e0684 209 core_util_critical_section_enter();
ganlikun 0:20e0c61e0684 210 currentValue = *ptr;
ganlikun 0:20e0c61e0684 211 if (currentValue == *expectedCurrentValue) {
ganlikun 0:20e0c61e0684 212 *ptr = desiredValue;
ganlikun 0:20e0c61e0684 213 success = true;
ganlikun 0:20e0c61e0684 214 } else {
ganlikun 0:20e0c61e0684 215 *expectedCurrentValue = currentValue;
ganlikun 0:20e0c61e0684 216 success = false;
ganlikun 0:20e0c61e0684 217 }
ganlikun 0:20e0c61e0684 218 core_util_critical_section_exit();
ganlikun 0:20e0c61e0684 219 return success;
ganlikun 0:20e0c61e0684 220 }
ganlikun 0:20e0c61e0684 221
ganlikun 0:20e0c61e0684 222 bool core_util_atomic_cas_u16(uint16_t *ptr, uint16_t *expectedCurrentValue, uint16_t desiredValue)
ganlikun 0:20e0c61e0684 223 {
ganlikun 0:20e0c61e0684 224 bool success;
ganlikun 0:20e0c61e0684 225 uint16_t currentValue;
ganlikun 0:20e0c61e0684 226 core_util_critical_section_enter();
ganlikun 0:20e0c61e0684 227 currentValue = *ptr;
ganlikun 0:20e0c61e0684 228 if (currentValue == *expectedCurrentValue) {
ganlikun 0:20e0c61e0684 229 *ptr = desiredValue;
ganlikun 0:20e0c61e0684 230 success = true;
ganlikun 0:20e0c61e0684 231 } else {
ganlikun 0:20e0c61e0684 232 *expectedCurrentValue = currentValue;
ganlikun 0:20e0c61e0684 233 success = false;
ganlikun 0:20e0c61e0684 234 }
ganlikun 0:20e0c61e0684 235 core_util_critical_section_exit();
ganlikun 0:20e0c61e0684 236 return success;
ganlikun 0:20e0c61e0684 237 }
ganlikun 0:20e0c61e0684 238
ganlikun 0:20e0c61e0684 239
ganlikun 0:20e0c61e0684 240 bool core_util_atomic_cas_u32(uint32_t *ptr, uint32_t *expectedCurrentValue, uint32_t desiredValue)
ganlikun 0:20e0c61e0684 241 {
ganlikun 0:20e0c61e0684 242 bool success;
ganlikun 0:20e0c61e0684 243 uint32_t currentValue;
ganlikun 0:20e0c61e0684 244 core_util_critical_section_enter();
ganlikun 0:20e0c61e0684 245 currentValue = *ptr;
ganlikun 0:20e0c61e0684 246 if (currentValue == *expectedCurrentValue) {
ganlikun 0:20e0c61e0684 247 *ptr = desiredValue;
ganlikun 0:20e0c61e0684 248 success = true;
ganlikun 0:20e0c61e0684 249 } else {
ganlikun 0:20e0c61e0684 250 *expectedCurrentValue = currentValue;
ganlikun 0:20e0c61e0684 251 success = false;
ganlikun 0:20e0c61e0684 252 }
ganlikun 0:20e0c61e0684 253 core_util_critical_section_exit();
ganlikun 0:20e0c61e0684 254 return success;
ganlikun 0:20e0c61e0684 255 }
ganlikun 0:20e0c61e0684 256
ganlikun 0:20e0c61e0684 257
ganlikun 0:20e0c61e0684 258 uint8_t core_util_atomic_incr_u8(uint8_t *valuePtr, uint8_t delta)
ganlikun 0:20e0c61e0684 259 {
ganlikun 0:20e0c61e0684 260 uint8_t newValue;
ganlikun 0:20e0c61e0684 261 core_util_critical_section_enter();
ganlikun 0:20e0c61e0684 262 newValue = *valuePtr + delta;
ganlikun 0:20e0c61e0684 263 *valuePtr = newValue;
ganlikun 0:20e0c61e0684 264 core_util_critical_section_exit();
ganlikun 0:20e0c61e0684 265 return newValue;
ganlikun 0:20e0c61e0684 266 }
ganlikun 0:20e0c61e0684 267
ganlikun 0:20e0c61e0684 268 uint16_t core_util_atomic_incr_u16(uint16_t *valuePtr, uint16_t delta)
ganlikun 0:20e0c61e0684 269 {
ganlikun 0:20e0c61e0684 270 uint16_t newValue;
ganlikun 0:20e0c61e0684 271 core_util_critical_section_enter();
ganlikun 0:20e0c61e0684 272 newValue = *valuePtr + delta;
ganlikun 0:20e0c61e0684 273 *valuePtr = newValue;
ganlikun 0:20e0c61e0684 274 core_util_critical_section_exit();
ganlikun 0:20e0c61e0684 275 return newValue;
ganlikun 0:20e0c61e0684 276 }
ganlikun 0:20e0c61e0684 277
ganlikun 0:20e0c61e0684 278 uint32_t core_util_atomic_incr_u32(uint32_t *valuePtr, uint32_t delta)
ganlikun 0:20e0c61e0684 279 {
ganlikun 0:20e0c61e0684 280 uint32_t newValue;
ganlikun 0:20e0c61e0684 281 core_util_critical_section_enter();
ganlikun 0:20e0c61e0684 282 newValue = *valuePtr + delta;
ganlikun 0:20e0c61e0684 283 *valuePtr = newValue;
ganlikun 0:20e0c61e0684 284 core_util_critical_section_exit();
ganlikun 0:20e0c61e0684 285 return newValue;
ganlikun 0:20e0c61e0684 286 }
ganlikun 0:20e0c61e0684 287
ganlikun 0:20e0c61e0684 288
ganlikun 0:20e0c61e0684 289 uint8_t core_util_atomic_decr_u8(uint8_t *valuePtr, uint8_t delta)
ganlikun 0:20e0c61e0684 290 {
ganlikun 0:20e0c61e0684 291 uint8_t newValue;
ganlikun 0:20e0c61e0684 292 core_util_critical_section_enter();
ganlikun 0:20e0c61e0684 293 newValue = *valuePtr - delta;
ganlikun 0:20e0c61e0684 294 *valuePtr = newValue;
ganlikun 0:20e0c61e0684 295 core_util_critical_section_exit();
ganlikun 0:20e0c61e0684 296 return newValue;
ganlikun 0:20e0c61e0684 297 }
ganlikun 0:20e0c61e0684 298
ganlikun 0:20e0c61e0684 299 uint16_t core_util_atomic_decr_u16(uint16_t *valuePtr, uint16_t delta)
ganlikun 0:20e0c61e0684 300 {
ganlikun 0:20e0c61e0684 301 uint16_t newValue;
ganlikun 0:20e0c61e0684 302 core_util_critical_section_enter();
ganlikun 0:20e0c61e0684 303 newValue = *valuePtr - delta;
ganlikun 0:20e0c61e0684 304 *valuePtr = newValue;
ganlikun 0:20e0c61e0684 305 core_util_critical_section_exit();
ganlikun 0:20e0c61e0684 306 return newValue;
ganlikun 0:20e0c61e0684 307 }
ganlikun 0:20e0c61e0684 308
ganlikun 0:20e0c61e0684 309 uint32_t core_util_atomic_decr_u32(uint32_t *valuePtr, uint32_t delta)
ganlikun 0:20e0c61e0684 310 {
ganlikun 0:20e0c61e0684 311 uint32_t newValue;
ganlikun 0:20e0c61e0684 312 core_util_critical_section_enter();
ganlikun 0:20e0c61e0684 313 newValue = *valuePtr - delta;
ganlikun 0:20e0c61e0684 314 *valuePtr = newValue;
ganlikun 0:20e0c61e0684 315 core_util_critical_section_exit();
ganlikun 0:20e0c61e0684 316 return newValue;
ganlikun 0:20e0c61e0684 317 }
ganlikun 0:20e0c61e0684 318
ganlikun 0:20e0c61e0684 319 #endif
ganlikun 0:20e0c61e0684 320
ganlikun 0:20e0c61e0684 321
ganlikun 0:20e0c61e0684 322 bool core_util_atomic_cas_ptr(void **ptr, void **expectedCurrentValue, void *desiredValue) {
ganlikun 0:20e0c61e0684 323 return core_util_atomic_cas_u32(
ganlikun 0:20e0c61e0684 324 (uint32_t *)ptr,
ganlikun 0:20e0c61e0684 325 (uint32_t *)expectedCurrentValue,
ganlikun 0:20e0c61e0684 326 (uint32_t)desiredValue);
ganlikun 0:20e0c61e0684 327 }
ganlikun 0:20e0c61e0684 328
ganlikun 0:20e0c61e0684 329 void *core_util_atomic_incr_ptr(void **valuePtr, ptrdiff_t delta) {
ganlikun 0:20e0c61e0684 330 return (void *)core_util_atomic_incr_u32((uint32_t *)valuePtr, (uint32_t)delta);
ganlikun 0:20e0c61e0684 331 }
ganlikun 0:20e0c61e0684 332
ganlikun 0:20e0c61e0684 333 void *core_util_atomic_decr_ptr(void **valuePtr, ptrdiff_t delta) {
ganlikun 0:20e0c61e0684 334 return (void *)core_util_atomic_decr_u32((uint32_t *)valuePtr, (uint32_t)delta);
ganlikun 0:20e0c61e0684 335 }
ganlikun 0:20e0c61e0684 336
ganlikun 0:20e0c61e0684 337