rt-thread-official/components/lwp/lwp_internal.h

99 lines
3.1 KiB
C

/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2023-07-25 Shell first version
*/
#ifndef __LWP_INTERNAL_H__
#define __LWP_INTERNAL_H__
#include "lwp.h"
#include "lwp_user_mm.h"
#include <rtthread.h>
#include "libc_musl.h"
struct rt_lwp;
rt_err_t lwp_mutex_take_safe(rt_mutex_t mtx, rt_int32_t timeout, rt_bool_t interruptable);
rt_err_t lwp_mutex_release_safe(rt_mutex_t mtx);
#ifdef RT_USING_SMP
#define LOCAL_IRQ_MASK() rt_hw_local_irq_disable()
#define LOCAL_IRQ_UNMASK(level) rt_hw_local_irq_enable(level)
#else
#define LOCAL_IRQ_MASK() rt_hw_interrupt_disable()
#define LOCAL_IRQ_UNMASK(level) rt_hw_interrupt_enable(level)
#endif
#ifndef LWP_USING_CPUS_LOCK
rt_err_t lwp_critical_enter(struct rt_lwp *lwp);
rt_err_t lwp_critical_exit(struct rt_lwp *lwp);
#define LWP_LOCK(lwp) \
do { \
RT_DEBUG_SCHEDULER_AVAILABLE(1); \
if (lwp_critical_enter(lwp) != RT_EOK) \
{ \
RT_ASSERT(0); \
} \
} while (0)
#define LWP_UNLOCK(lwp) \
do { \
if (lwp_critical_exit(lwp) != RT_EOK) \
{ \
RT_ASSERT(0); \
} \
} while (0)
#else
#define LWP_LOCK(lwp) rt_base_t level = rt_hw_interrupt_disable()
#define LWP_UNLOCK(lwp) rt_hw_interrupt_enable(level)
#endif /* LWP_USING_CPUS_LOCK */
/* cpus lock */
#ifdef LWP_OVERRIDE_CPUS_LOCK
#undef rt_hw_interrupt_disable
#undef rt_hw_interrupt_enable
#define rt_hw_interrupt_disable() ({ \
rt_base_t irq = rt_hw_interrupt_is_disabled(); \
if (irq) \
{ \
LOG_W("Nested interrupt disable"); \
rt_backtrace(); \
irq = 0xabadcafe; \
} else { \
irq = rt_cpus_lock(); \
} \
irq; \
})
#define rt_hw_interrupt_enable(level) do { \
if (level != 0xabadcafe) \
rt_cpus_unlock(level); \
} while (0)
#endif /* LWP_OVERRIDE_CPUS_LOCK */
/**
* Brief: Return code with safety check
* There tend to be chances where a return value is returned without correctly init
*/
#ifndef LWP_DEBUG
#define DEF_RETURN_CODE(name) rt_err_t name
#define RETURN(name) return name
#else
#define _LWP_UNINITIALIZED_RC 0xbeefcafe
#define DEF_RETURN_CODE(name) rt_err_t name = _LWP_UNINITIALIZED_RC
#define RETURN(name) {RT_ASSERT(name != _LWP_UNINITIALIZED_RC);return name;}
#endif /* LWP_DEBUG */
#endif /* __LWP_INTERNAL_H__ */