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RIOT/pkg/lwip/include/arch/sys_arch.h 1.9 KB
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  /*
   * Copyright (C) 2015 Martine Lenders <mlenders@inf.fu-berlin.de>
   *
   * This file is subject to the terms and conditions of the GNU Lesser
   * General Public License v2.1. See the file LICENSE in the top level
   * directory for more details.
   */
  
  /**
   * @defgroup    lwip_arch_sys_arch Architecture depentent definitions
   * @ingroup     lwip
   * @brief       Semaphores and mailboxes.
   * @{
   *
   * @file
   * @brief   Semaphore and mailboxes definitions.
   *
   * @author  Martine Lenders <mlenders@inf.fu-berlin.de>
   */
  #ifndef ARCH_SYS_ARCH_H
  #define ARCH_SYS_ARCH_H
  
  #include <stdbool.h>
  #include <stdint.h>
  
  #include "cib.h"
  #include "kernel_types.h"
  #include "mbox.h"
  #include "mutex.h"
  #include "random.h"
  #include "sema.h"
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  #define LWIP_COMPAT_MUTEX   (0)
  #define SYS_SEM_NULL        { 0, PRIORITY_QUEUE_INIT }
  #define SYS_MBOX_SIZE       (8)
  
  typedef struct {
      mbox_t mbox;
      msg_t msgs[SYS_MBOX_SIZE];
  } sys_mbox_t;
  
  typedef mutex_t sys_mutex_t;
  typedef sema_t sys_sem_t;
  typedef kernel_pid_t sys_thread_t;
  
  static inline bool sys_mutex_valid(sys_mutex_t *mutex)
  {
      return mutex != NULL;
  }
  
  static inline bool sys_sem_valid(sys_sem_t *sem)
  {
      return sem != NULL;
  }
  
  static inline bool sys_mbox_valid(sys_mbox_t *mbox)
  {
      return (mbox != NULL) && (mbox->mbox.cib.mask != 0);
  }
  
  static inline void sys_mbox_set_invalid(sys_mbox_t *mbox)
  {
      if (mbox != NULL) {
          mbox->mbox.cib.mask = 0;
      }
  }
  
  #define sys_mutex_valid(mutex)          (sys_mutex_valid(mutex))
  #define sys_mutex_set_invalid(mutex)
  #define sys_sem_valid(sem)              (sys_sem_valid(sem))
  #define sys_sem_set_invalid(sem)
  #define sys_mbox_valid(mbox)            (sys_mbox_valid(mbox))
  #define sys_mbox_set_invalid(mbox)      (sys_mbox_set_invalid(mbox))
  
  #ifdef MODULE_RANDOM
  #define LWIP_RAND()                     (random_uint32())
  #endif
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif /* ARCH_SYS_ARCH_H */
  /** @} */