text: /*
   * Copyright (c) 2015 Wind River Systems, Inc.
   *
   * SPDX-License-Identifier: Apache-2.0
   */
  
  #ifndef ZEPHYR_KERNEL_INCLUDE_TIMEOUT_Q_H_
  #define ZEPHYR_KERNEL_INCLUDE_TIMEOUT_Q_H_
  
  /**
   * @file
   * @brief timeout queue for threads on kernel objects
   */
  
  #include <kernel.h>
  
  #include <stdbool.h>
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  #ifdef CONFIG_SYS_CLOCK_EXISTS
  
  static inline void z_init_timeout(struct _timeout *t)
  {
  	sys_dnode_init(&t->node);
  }
  
  void z_add_timeout(struct _timeout *to, _timeout_func_t fn, s32_t ticks);
  
  int z_abort_timeout(struct _timeout *to);
  
  static inline bool z_is_inactive_timeout(struct _timeout *t)
  {
  	return !sys_dnode_is_linked(&t->node);
  }
  
  static inline void z_init_thread_timeout(struct _thread_base *thread_base)
  {
  	z_init_timeout(&thread_base->timeout);
  }
  
  extern void z_thread_timeout(struct _timeout *to);
  
  static inline void z_add_thread_timeout(struct k_thread *th, s32_t ticks)
  {
  	z_add_timeout(&th->base.timeout, z_thread_timeout, ticks);
  }
  
  static inline int z_abort_thread_timeout(struct k_thread *thread)
  {
  	return z_abort_timeout(&thread->base.timeout);
  }
  
  s32_t z_get_next_timeout_expiry(void);
  
  void z_set_timeout_expiry(s32_t ticks, bool idle);
  
  s32_t z_timeout_remaining(struct _timeout *timeout);
  
  #else
  
  /* Stubs when !CONFIG_SYS_CLOCK_EXISTS */
  #define z_init_thread_timeout(t) do {} while (false)
  #define z_add_thread_timeout(th, to) do {} while (false && to && (void *)th)
  #define z_abort_thread_timeout(t) (0)
  #define z_is_inactive_timeout(t) 0
  #define z_get_next_timeout_expiry() (K_FOREVER)
  #define z_set_timeout_expiry(t, i) do {} while (false)
  
  #endif
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif /* ZEPHYR_KERNEL_INCLUDE_TIMEOUT_Q_H_ */
  