tian
29d9ef5d0d
仓库结构: edge/ 设备端（原根目录设备端代码整体移入） control/ 管理端（清理后） docs/ 文档（PRD 移入 design/） README.md 根导航（新增） 清理: - control/.brainstorm 临时草稿删除 - control 根级重复文档(API表/PRD_04)并入 docs/design/ - control/plan.md -> docs/implementation/control-plan.md - control/safesightd-linux-arm64 二进制取消版本控制(.gitignore) - edge/transform 模型转换产物归入 models/，onnx/pt 大源文件取消跟踪(.gitignore) - Readme.md(PRD) -> docs/design/PRD_Product_v1.2.md（避开 README 大小写冲突） 更新: - 根 README.md 导航、docs/README.md 文档索引 - deployment.md/检查表路径加 edge/ 前缀 - .gitignore 重写（edge/control 分区规则）
73 lines
1.4 KiB
C
73 lines
1.4 KiB
C
/* SPDX-License-Identifier: Apache-2.0 OR MIT */
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/*
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* Copyright (c) 2021 Rockchip Electronics Co., Ltd.
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*/
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#define MODULE_TAG "mpp_lock"
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#include "mpp_env.h"
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#include "mpp_log.h"
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#include "mpp_lock.h"
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#include "mpp_time.h"
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#define LOCK_IDLE 0
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#define LOCK_BUSY 1
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void mpp_spinlock_init(spinlock_t *lock)
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{
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MPP_SYNC_CLR(&lock->lock);
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lock->count = 0;
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lock->time = 0;
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mpp_env_get_u32("mpp_lock_debug", &lock->debug, 0);
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}
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void mpp_spinlock_lock(spinlock_t *lock)
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{
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RK_S64 time = 0;
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if (lock->debug)
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time = mpp_time();
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while (!MPP_BOOL_CAS(&lock->lock, LOCK_IDLE, LOCK_BUSY)) {
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asm("NOP");
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asm("NOP");
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}
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if (lock->debug && time) {
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lock->time += mpp_time() - time;
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lock->count++;
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}
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}
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void mpp_spinlock_deinit(spinlock_t *lock, const char *name)
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{
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if (lock->debug && lock->count) {
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mpp_log("lock %s lock %lld times take time %lld avg %d", name,
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lock->count, lock->time, (RK_S32)(lock->time / lock->count));
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}
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}
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void mpp_spinlock_unlock(spinlock_t *lock)
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{
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MPP_SYNC_CLR(&lock->lock);
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}
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bool mpp_spinlock_trylock(spinlock_t *lock)
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{
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RK_S64 time = 0;
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bool ret;
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if (lock->debug)
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time = mpp_time();
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ret = MPP_BOOL_CAS(&lock->lock, LOCK_IDLE, LOCK_BUSY);
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if (ret && lock->debug && time) {
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lock->time += mpp_time() - time;
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lock->count++;
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}
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return ret;
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}
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