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/**
* @file lv_os.h
*
*/
#ifndef LV_OS_H
#define LV_OS_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* OS OPTIONS
*********************/
/*********************
* INCLUDES
*********************/
#include "../lv_conf_internal.h"
#include "../misc/lv_types.h"
#include <stddef.h>
#if LV_USE_OS == LV_OS_NONE
#include "lv_os_none.h"
#elif LV_USE_OS == LV_OS_PTHREAD
#include "lv_pthread.h"
#elif LV_USE_OS == LV_OS_FREERTOS
#include "lv_freertos.h"
#elif LV_USE_OS == LV_OS_CMSIS_RTOS2
#include "lv_cmsis_rtos2.h"
#elif LV_USE_OS == LV_OS_RTTHREAD
#include "lv_rtthread.h"
#elif LV_USE_OS == LV_OS_WINDOWS
#include "lv_windows.h"
#elif LV_USE_OS == LV_OS_CUSTOM
#include LV_OS_CUSTOM_INCLUDE
#endif
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
typedef enum {
LV_THREAD_PRIO_LOWEST,
LV_THREAD_PRIO_LOW,
LV_THREAD_PRIO_MID,
LV_THREAD_PRIO_HIGH,
LV_THREAD_PRIO_HIGHEST,
} lv_thread_prio_t;
/**********************
* GLOBAL PROTOTYPES
**********************/
/*----------------------------------------
* These functions needs to be implemented
* for specific operating systems
*---------------------------------------*/
/**
* Create a new thread
* @param thread a variable in which the thread will be stored
* @param prio priority of the thread
* @param callback function of the thread
* @param stack_size stack size in bytes
* @param user_data arbitrary data, will be available in the callback
* @return LV_RESULT_OK: success; LV_RESULT_INVALID: failure
*/
lv_result_t lv_thread_init(lv_thread_t * thread, lv_thread_prio_t prio, void (*callback)(void *), size_t stack_size,
void * user_data);
/**
* Delete a thread
* @param thread the thread to delete
* @return LV_RESULT_OK: success; LV_RESULT_INVALID: failure
*/
lv_result_t lv_thread_delete(lv_thread_t * thread);
/**
* Create a mutex
* @param mutex a variable in which the thread will be stored
* @return LV_RESULT_OK: success; LV_RESULT_INVALID: failure
*/
lv_result_t lv_mutex_init(lv_mutex_t * mutex);
/**
* Lock a mutex
* @param mutex the mutex to lock
* @return LV_RESULT_OK: success; LV_RESULT_INVALID: failure
*/
lv_result_t lv_mutex_lock(lv_mutex_t * mutex);
/**
* Lock a mutex from interrupt
* @param mutex the mutex to lock
* @return LV_RESULT_OK: success; LV_RESULT_INVALID: failure
*/
lv_result_t lv_mutex_lock_isr(lv_mutex_t * mutex);
/**
* Unlock a mutex
* @param mutex the mutex to unlock
* @return LV_RESULT_OK: success; LV_RESULT_INVALID: failure
*/
lv_result_t lv_mutex_unlock(lv_mutex_t * mutex);
/**
* Delete a mutex
* @param mutex the mutex to delete
* @return LV_RESULT_OK: success; LV_RESULT_INVALID: failure
*/
lv_result_t lv_mutex_delete(lv_mutex_t * mutex);
/**
* Create a thread synchronization object
* @param sync a variable in which the sync will be stored
* @return LV_RESULT_OK: success; LV_RESULT_INVALID: failure
*/
lv_result_t lv_thread_sync_init(lv_thread_sync_t * sync);
/**
* Wait for a "signal" on a sync object
* @param sync a sync object
* @return LV_RESULT_OK: success; LV_RESULT_INVALID: failure
*/
lv_result_t lv_thread_sync_wait(lv_thread_sync_t * sync);
/**
* Send a wake-up signal to a sync object
* @param sync a sync object
* @return LV_RESULT_OK: success; LV_RESULT_INVALID: failure
*/
lv_result_t lv_thread_sync_signal(lv_thread_sync_t * sync);
/**
* Delete a sync object
* @param sync a sync object to delete
* @return LV_RESULT_OK: success; LV_RESULT_INVALID: failure
*/
lv_result_t lv_thread_sync_delete(lv_thread_sync_t * sync);
/**********************
* MACROS
**********************/
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LV_OS_H*/
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