#ifndef __MSG_QUEUE_H_INCLUDED
#define __MSG_QUEUE_H_INCLUDED

#include "wintype.h"
#include "msg.h"

typedef struct tagMSG_QUEUE {
  struct tagMSG_QUEUE *next;
  PMSG startbound;
  PMSG endbound;
  PMSG head;
  PMSG tail;
  UINT32 nentries;
  pthread_mutex_t mutex;
  MSG messagestore[0];
} MSG_QUEUE, *PMSG_QUEUE;

#define PEEK_REMOVE   0x0001
#define PEEK_NOREMOVE 0x0000

extern PMSG_QUEUE Mq_alloc(UINT32 nentries);
extern void Mq_destroy(PMSG_QUEUE queue);
extern void Mq_post(PMSG_QUEUE queue, HANDLE target, UINT32 message, const UINT_PTR *attrs, int nattrs);
extern void Mq_post2(PMSG_QUEUE queue, HANDLE target, UINT32 message, UINT_PTR attr1, UINT_PTR attr2);
extern BOOL Mq_peek(PMSG_QUEUE queue, PMSG msg, UINT32 flags);

#define Mq_post0(q, tgt, msg)         Mq_post2(q, tgt, msg, 0, 0)
#define Mq_post1(q, tgt, msg, attr)   Mq_post2(q, tgt, msg, attr, 0)

#endif /* __MSG_QUEUE_H_INCLUDED */