Imported Upstream version 93u+upstream

1 files changed, 183 insertions, 0 deletions

diff --git a/src/lib/libast/include/aso.h b/src/lib/libast/include/aso.h
new file mode 100644
index 0000000..1007e93
--- /dev/null
+++ b/src/lib/libast/include/aso.h
@@ -0,0 +1,183 @@
+/***********************************************************************
+*                                                                      *
+*               This software is part of the ast package               *
+*          Copyright (c) 1985-2011 AT&T Intellectual Property          *
+*                      and is licensed under the                       *
+*                 Eclipse Public License, Version 1.0                  *
+*                    by AT&T Intellectual Property                     *
+*                                                                      *
+*                A copy of the License is available at                 *
+*          http://www.eclipse.org/org/documents/epl-v10.html           *
+*         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *
+*                                                                      *
+*              Information and Software Systems Research               *
+*                            AT&T Research                             *
+*                           Florham Park NJ                            *
+*                                                                      *
+*                 Glenn Fowler <gsf@research.att.com>                  *
+*                  David Korn <dgk@research.att.com>                   *
+*                   Phong Vo <kpv@research.att.com>                    *
+*                                                                      *
+***********************************************************************/
+#pragma prototyped
+
+#ifndef _ASO_H
+#define _ASO_H	1
+
+#define ASO_VERSION	20111111L
+
+#include <ast_common.h>
+
+/*
+ * ast atomic scalar operations interface definitions
+ */
+
+/* asometh() types (ordered mutually exclusive flags) */
+#define ASO_NEXT	(-1)
+#define ASO_SIGNAL	1
+#define ASO_THREAD	2
+#define ASO_PROCESS	4
+#define ASO_INTRINSIC	8
+
+/* asolock() operations */
+#define ASO_UNLOCK	0	/* unlock if key matches  		*/
+#define ASO_TRYLOCK	1	/* matched key means successful attempt	*/
+#define ASO_LOCK	2	/* matched key first, then spin-lock	*/
+#define ASO_SPINLOCK	3	/* no matching of key before locking	*/
+
+/* Asoerror_f types */
+#define ASO_EMETHOD	0	/* method specific error		*/
+#define ASO_EHUNG	1	/* asoloop() possibly hung		*/
+
+/* for internal use, but standardized for libs such as CDT and Vmalloc */
+#define ASO_RELAX	((1<<2)-1) /* cycles between spin-loop yield */
+#define ASOLOOP(k)	asoloop(++(k))
+
+#define ASODISC(d,e)	(memset(d,0,sizeof(*(d))),(d)->version=ASO_VERSION,(d)->errorf=(e))
+
+typedef int (*Asoerror_f)(int, const char*);
+typedef void* (*Asoinit_f)(void*, const char*);
+typedef ssize_t (*Asolock_f)(void*, ssize_t, void volatile*);
+
+typedef struct Asodisc_s
+{
+	uint32_t	version;
+	unsigned int	hung;
+	Asoerror_f	errorf;
+} Asodisc_t;
+
+typedef struct Asometh_s
+{
+	const char*	name;
+	int		type;
+	Asoinit_f	initf;
+	Asolock_f	lockf;
+	const char*	details;
+} Asometh_t;
+
+#if (_BLD_aso || _BLD_taso) && defined(__EXPORT__)
+#define extern	extern __EXPORT__
+#endif
+#if !(_BLD_aso || _BLD_taso) && defined(__IMPORT__)
+#define extern	extern __IMPORT__
+#endif
+
+extern Asometh_t*		asometh(int, void*);
+
+#undef	extern
+
+#if _BLD_aso && defined(__EXPORT__)
+#define extern	extern __EXPORT__
+#endif
+#if !_BLD_aso && defined(__IMPORT__)
+#define extern	extern __IMPORT__
+#endif
+
+extern Asometh_t*		_asometh(int, void*);
+extern int			asoinit(const char*, Asometh_t*, Asodisc_t*);
+extern int			asolock(unsigned int volatile*, unsigned int, int);
+extern int			asoloop(uintmax_t);
+extern int			asorelax(long);
+
+extern uint8_t			asocas8(uint8_t volatile*, int, int);
+extern uint8_t			asoget8(uint8_t volatile*);
+extern uint8_t			asoinc8(uint8_t volatile*);
+extern uint8_t			asodec8(uint8_t volatile*);
+
+#define asocaschar(p,o,n)	asocas8(p,o,n)
+#define asogetchar(p)		asoget8(p)
+#define asoincchar(p)		asoinc8(p)
+#define asodecchar(p)		asodec8(p)
+
+extern uint16_t			asocas16(uint16_t volatile*, uint16_t, uint16_t);
+extern uint16_t			asoget16(uint16_t volatile*);
+extern uint16_t			asoinc16(uint16_t volatile*);
+extern uint16_t			asodec16(uint16_t volatile*);
+
+#define asocasshort(p,o,n)	asocas16(p,o,n)
+#define asogetshort(p)		asoget16(p)
+#define asoincshort(p)		asoinc16(p)
+#define asodecshort(p)		asodec16(p)
+
+extern uint32_t			asocas32(uint32_t volatile*, uint32_t, uint32_t);
+extern uint32_t			asoget32(uint32_t volatile*);
+extern uint32_t			asoinc32(uint32_t volatile*);
+extern uint32_t			asodec32(uint32_t volatile*);
+
+#if _ast_sizeof_int == 4
+#define asocasint(p,o,n)	asocas32((uint32_t volatile*)p,o,n)
+#define asogetint(p)		asoget32((uint32_t volatile*)p)
+#define asoincint(p)		asoinc32((uint32_t volatile*)p)
+#define asodecint(p)		asodec32((uint32_t volatile*)p)
+#endif
+
+#if _ast_sizeof_long == 4
+#define asocaslong(p,o,n)	asocas32((uint32_t volatile*)p,o,n)
+#define asogetlong(p)		asoget32((uint32_t volatile*)p)
+#define asoinclong(p)		asoinc32((uint32_t volatile*)p)
+#define asodeclong(p)		asodec32((uint32_t volatile*)p)
+#endif
+
+#if _ast_sizeof_size_t == 4
+#define asocassize(p,o,n)	asocas32((uint32_t volatile*)p,o,n)
+#define asogetsize(p)		asoget32((uint32_t volatile*)p)
+#define asoincsize(p)		asoinc32((uint32_t volatile*)p)
+#define asodecsize(p)		asodec32((uint32_t volatile*)p)
+#endif
+
+#ifdef _ast_int8_t
+
+extern uint64_t			asocas64(uint64_t volatile*, uint64_t, uint64_t);
+extern uint64_t			asoget64(uint64_t volatile*);
+extern uint64_t			asoinc64(uint64_t volatile*);
+extern uint64_t			asodec64(uint64_t volatile*);
+
+#if _ast_sizeof_int == 8
+#define asocasint(p,o,n)	asocas64((uint64_t volatile*)p,o,n)
+#define asogetint(p)		asoget64((uint64_t volatile*)p)
+#define asoincint(p)		asoinc64((uint64_t volatile*)p)
+#define asodecint(p)		asodec64((uint64_t volatile*)p)
+#endif
+
+#if _ast_sizeof_long == 8
+#define asocaslong(p,o,n)	asocas64((uint64_t volatile*)p,o,n)
+#define asogetlong(p)		asoget64((uint64_t volatile*)p)
+#define asoinclong(p)		asoinc64((uint64_t volatile*)p)
+#define asodeclong(p)		asodec64((uint64_t volatile*)p)
+#endif
+
+#if _ast_sizeof_size_t == 8
+#define asocassize(p,o,n)	asocas64((uint64_t volatile*)p,o,n)
+#define asogetsize(p)		asoget64((uint64_t volatile*)p)
+#define asoincsize(p)		asoinc64((uint64_t volatile*)p)
+#define asodecsize(p)		asodec64((uint64_t volatile*)p)
+#endif
+
+#endif
+
+extern void*			asocasptr(void volatile*, void*, void*);
+extern void*			asogetptr(void volatile*);
+
+#undef	extern
+
+#endif