libs.h

T-kernel 的extension源代码

/*
 *----------------------------------------------------------------------
 *    T-Kernel / Standard Extension
 *
 *    Copyright (C) 2006 by Ken Sakamura. All rights reserved.
 *    T-Kernel / Standard Extension is distributed 
 *      under the T-License for T-Kernel / Standard Extension.
 *----------------------------------------------------------------------
 *
 *    Version:   1.00.00
 *    Released by T-Engine Forum(http://www.t-engine.org) at 2006/8/11.
 *
 *----------------------------------------------------------------------
 */

/*
 *	@(#)libs.h (sys)
 *
 *	Internal library functions
 */

#ifndef __SYS_LIBS_H__
#define __SYS_LIBS_H__

#include <basic.h>
#include <sys/queue.h>

#ifdef __cplusplus
extern "C" {
#endif

/*
 * Internal library error during process startup sequence 
 */
IMPORT ER	_StartupError;

/*
 * TRUE for multitasking library 
 */
IMPORT BOOL	_isUseMT( void );

/*
 * Common exclusion control lock in library 
 */
IMPORT ER	_lib_lock( W lockno, BOOL ignore_mintr );
IMPORT ER	_lib_locktmo( W lockno, W tmo, BOOL ignore_mintr );
IMPORT void	_lib_unlock( W lockno );

/* Lockno (0 - 15) */
#define _LL_MEMALLOC	0	/* Allocate memory */
#define _LL_DLL		1	/* Dynamic loader */
#define _LL_GCC		2	/* Gcc run-time support */
#define	_LL_ERRNO	2	/* Errno initialize (same as _LL_GCC) */
#define _LL_TF		3	/* TRON Code Framework (libtf) */
#define _LL_LOOKUP	4	/* Character search library (liblookup) */

#define _LL_STLPORT	5	/* C++ class library(libstlport) */
#define _LL_STDIO	6	/* Stdio library (libg) */
#define	_LL_LIBCTX	7	/* Library context */
#define	_LL_MISC	8	/* Local lock */

/*
 * Library context
 */
IMPORT ER	_CreateLibCtxKey( void (*destroy)( void* ) );
IMPORT ER	_SetLibCtx( ID keyid, void *value );
IMPORT ER	_GetLibCtx( ID keyid, void **value );
IMPORT ER	_DeleteLibCtxKey( ID keyid );
IMPORT void	_DeleteLibCtxTask( ID tskid );
IMPORT void	_DeleteAllLibCtx( void );

/*
 * Processing when task context is discarded
 */
IMPORT int	__atdelctx( void (*func)( ID tskid ) );
IMPORT void	_delete_libctx( ID tskid );

/*
 * FIFO lock
 */
typedef struct FiFoLock {
	QUEUE	q;	/* A lock wait queue */
	ID	tid;	/* A wait task ID/Lock-obtain-state */
} FiFoLock;

IMPORT void	InitFFLock( FiFoLock* );
IMPORT ER	FFLock( FiFoLock* );
IMPORT ER	FFUnlock( FiFoLock* );

#ifdef __cplusplus
}
#endif
#endif /* __SYS_LIBS_H__ */