#ifndef _NT_SEM_H_
#define _NT_SEM_H_

#include "nt_abi.h"
#include "nt_object.h"

/* semaphore commands */
#define NT_SEM_CMD_GETPID		(11)
#define NT_SEM_CMD_GETVAL		(12)
#define NT_SEM_CMD_GETALL		(13)
#define NT_SEM_CMD_GETNCNT		(14)
#define NT_SEM_CMD_GETZCNT		(15)
#define NT_SEM_CMD_SETVAL		(16)
#define NT_SEM_CMD_SETALL		(17)


/* semaphore command flags */
#define NT_SEM_FLAG_NOWAIT		(0x0800)
#define NT_SEM_FLAG_UNDO		(0x1000)


/* semaphore info */
typedef struct __attr_ptr_size_aligned__ _nt_sem_info {
	void *		hport;
	void *		section;
	void *		section_addr;
	size_t		section_size;
	void *		hevent;
	void *		apc_routine;
	void *		apc_context;
	int32_t		semkey;
	int32_t		semslots;
	int32_t		semid;
	int32_t		semnum;
	int32_t		semcmd;
	int32_t		sempid;
	int32_t		semncnt;
	int32_t		semzcnt;
	int32_t		semval;
	int32_t		semadj;
	nt_filetime	semotime;
	nt_filetime	semctime;
	uint64_t	ipcuid;
	uint64_t	ipcgid;
	uint64_t	ipccuid;
	uint64_t	ipccgid;
	uint32_t	ipcmode;
	int32_t		ipcseq;
	uint32_t	ntaccess;
	uint32_t	ntattr;
	uint32_t	ntshare;
	uint32_t	ntoptions;
	nt_iosb		ntiosb;
	nt_iosb *	riosb;
} nt_sem_info;


/* semaphore operation */
typedef struct _nt_sem_op {
        uint16_t	semnum;
        int16_t		semop;
        int16_t		semflag;
} nt_sem_op;


/* semaphore client interfaces */
typedef int32_t	__stdcall ntapi_sem_create(
	__in	void *			hport,
	__out	nt_sem_info *		sem,
	__in	uint32_t		access,
	__in	nt_object_attributes *	oa,
	__out	nt_iosb *		iosb,
	__in	uint32_t		share,
	__in	uint32_t		nslots);


typedef int32_t	__stdcall ntapi_sem_open(
	__in	void *			hport,
	__out	nt_sem_info *		sem,
	__in	uint32_t		access,
	__in	nt_object_attributes *	oa,
	__out	nt_iosb *		iosb,
	__in	uint32_t		share,
	__in	uint32_t		nslots);


typedef int32_t	__stdcall ntapi_sem_fcntl(
	__in	nt_sem_info *		sem,
	__in	void *			hevent			__optional,
	__in	nt_io_apc_routine *	apc_routine		__optional,
	__in	void *			apc_context		__optional,
	__out	nt_iosb *		iosb,
	__in	uint32_t		tty_control_code,
	__in	void *			input_buffer		__optional,
	__in	uint32_t		input_buffer_length,
	__out	void *			output_buffer		__optional,
	__in	uint32_t		output_buffer_length);


typedef int32_t	__stdcall ntapi_sem_ioctl(
	__in	nt_sem_info *		sem,
	__in	void *			hevent			__optional,
	__in	nt_io_apc_routine *	apc_routine		__optional,
	__in	void *			apc_context		__optional,
	__out	nt_iosb *		iosb,
	__in	uint32_t		ipc_control_code,
	__in	void *			input_buffer		__optional,
	__in	uint32_t		input_buffer_length,
	__out	void *			output_buffer		__optional,
	__in	uint32_t		output_buffer_length);


typedef int32_t	__stdcall ntapi_sem_query(
	__in	nt_sem_info *		sem,
	__out	nt_io_status_block *	iosb,
	__out	void *			sem_info,
	__in	uint32_t		sem_info_length,
	__in	int32_t			sem_ipc_cmd);


typedef int32_t	__stdcall ntapi_sem_set(
	__in	nt_sem_info *		sem,
	__out	nt_io_status_block *	iosb,
	__in	void *			sem_info,
	__in	uint32_t		sem_info_length,
	__in	int32_t			sem_ipc_cmd);


typedef int32_t	__stdcall ntapi_sem_cancel(
	__in	nt_sem_info *		sem,
	__out	nt_iosb *		iosb);


typedef int32_t	__stdcall ntapi_sem_free(
	__in	nt_sem_info *		sem,
	__out	nt_iosb *		iosb);


#endif