385 lines
9.8 KiB
C
385 lines
9.8 KiB
C
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/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
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*/
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#ifndef _LIBUUTIL_H
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#define _LIBUUTIL_H
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#include <sys/types.h>
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#include <stdarg.h>
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#include <stdio.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Standard flags codes.
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*/
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#define UU_DEFAULT 0
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/*
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* Standard error codes.
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*/
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#define UU_ERROR_NONE 0 /* no error */
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#define UU_ERROR_INVALID_ARGUMENT 1 /* invalid argument */
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#define UU_ERROR_UNKNOWN_FLAG 2 /* passed flag invalid */
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#define UU_ERROR_NO_MEMORY 3 /* out of memory */
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#define UU_ERROR_CALLBACK_FAILED 4 /* callback-initiated error */
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#define UU_ERROR_NOT_SUPPORTED 5 /* operation not supported */
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#define UU_ERROR_EMPTY 6 /* no value provided */
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#define UU_ERROR_UNDERFLOW 7 /* value is too small */
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#define UU_ERROR_OVERFLOW 8 /* value is too value */
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#define UU_ERROR_INVALID_CHAR 9 /* value contains unexpected char */
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#define UU_ERROR_INVALID_DIGIT 10 /* value contains digit not in base */
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#define UU_ERROR_SYSTEM 99 /* underlying system error */
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#define UU_ERROR_UNKNOWN 100 /* error status not known */
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/*
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* Standard program exit codes.
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*/
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#define UU_EXIT_OK (*(uu_exit_ok()))
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#define UU_EXIT_FATAL (*(uu_exit_fatal()))
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#define UU_EXIT_USAGE (*(uu_exit_usage()))
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/*
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* Exit status profiles.
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*/
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#define UU_PROFILE_DEFAULT 0
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#define UU_PROFILE_LAUNCHER 1
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/*
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* Error reporting functions.
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*/
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uint32_t uu_error(void);
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const char *uu_strerror(uint32_t);
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/*
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* Program notification functions.
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*/
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extern void uu_alt_exit(int);
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extern const char *uu_setpname(char *);
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extern const char *uu_getpname(void);
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/*PRINTFLIKE1*/
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extern void uu_warn(const char *, ...);
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extern void uu_vwarn(const char *, va_list);
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/*PRINTFLIKE1*/
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extern void uu_die(const char *, ...) __NORETURN;
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extern void uu_vdie(const char *, va_list) __NORETURN;
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/*PRINTFLIKE2*/
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extern void uu_xdie(int, const char *, ...) __NORETURN;
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extern void uu_vxdie(int, const char *, va_list) __NORETURN;
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/*
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* Exit status functions (not to be used directly)
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*/
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extern int *uu_exit_ok(void);
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extern int *uu_exit_fatal(void);
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extern int *uu_exit_usage(void);
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/*
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* Debug print facility functions.
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*/
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typedef struct uu_dprintf uu_dprintf_t;
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typedef enum {
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UU_DPRINTF_SILENT,
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UU_DPRINTF_FATAL,
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UU_DPRINTF_WARNING,
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UU_DPRINTF_NOTICE,
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UU_DPRINTF_INFO,
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UU_DPRINTF_DEBUG
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} uu_dprintf_severity_t;
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extern uu_dprintf_t *uu_dprintf_create(const char *, uu_dprintf_severity_t,
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uint_t);
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/*PRINTFLIKE3*/
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extern void uu_dprintf(uu_dprintf_t *, uu_dprintf_severity_t,
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const char *, ...);
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extern void uu_dprintf_destroy(uu_dprintf_t *);
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extern const char *uu_dprintf_getname(uu_dprintf_t *);
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/*
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* Identifier test flags and function.
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*/
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#define UU_NAME_DOMAIN 0x1 /* allow SUNW, or com.sun, prefix */
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#define UU_NAME_PATH 0x2 /* allow '/'-delimited paths */
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int uu_check_name(const char *, uint_t);
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/*
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* File creation functions.
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*/
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extern int uu_open_tmp(const char *dir, uint_t uflags);
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/*
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* Convenience functions.
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*/
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#define UU_NELEM(a) (sizeof (a) / sizeof ((a)[0]))
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/*PRINTFLIKE1*/
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extern char *uu_msprintf(const char *format, ...);
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extern void *uu_zalloc(size_t);
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extern char *uu_strdup(const char *);
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extern void uu_free(void *);
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extern boolean_t uu_strcaseeq(const char *a, const char *b);
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extern boolean_t uu_streq(const char *a, const char *b);
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extern char *uu_strndup(const char *s, size_t n);
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extern boolean_t uu_strbw(const char *a, const char *b);
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extern void *uu_memdup(const void *buf, size_t sz);
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extern void uu_dump(FILE *out, const char *prefix, const void *buf, size_t len);
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/*
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* Comparison function type definition.
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* Developers should be careful in their use of the _private argument. If you
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* break interface guarantees, you get undefined behavior.
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*/
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typedef int uu_compare_fn_t(const void *__left, const void *__right,
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void *__private);
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/*
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* Walk variant flags.
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* A data structure need not provide support for all variants and
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* combinations. Refer to the appropriate documentation.
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*/
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#define UU_WALK_ROBUST 0x00000001 /* walk can survive removes */
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#define UU_WALK_REVERSE 0x00000002 /* reverse walk order */
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#define UU_WALK_PREORDER 0x00000010 /* walk tree in pre-order */
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#define UU_WALK_POSTORDER 0x00000020 /* walk tree in post-order */
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/*
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* Walk callback function return codes.
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*/
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#define UU_WALK_ERROR -1
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#define UU_WALK_NEXT 0
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#define UU_WALK_DONE 1
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/*
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* Walk callback function type definition.
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*/
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typedef int uu_walk_fn_t(void *_elem, void *_private);
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/*
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* lists: opaque structures
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*/
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typedef struct uu_list_pool uu_list_pool_t;
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typedef struct uu_list uu_list_t;
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typedef struct uu_list_node {
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uintptr_t uln_opaque[2];
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} uu_list_node_t;
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typedef struct uu_list_walk uu_list_walk_t;
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typedef uintptr_t uu_list_index_t;
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/*
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* lists: interface
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*
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* basic usage:
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* typedef struct foo {
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* ...
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* uu_list_node_t foo_node;
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* ...
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* } foo_t;
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*
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* static int
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* foo_compare(void *l_arg, void *r_arg, void *private)
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* {
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* foo_t *l = l_arg;
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* foo_t *r = r_arg;
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*
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* if (... l greater than r ...)
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* return (1);
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* if (... l less than r ...)
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* return (-1);
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* return (0);
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* }
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*
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* ...
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* // at initialization time
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* foo_pool = uu_list_pool_create("foo_pool",
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* sizeof (foo_t), offsetof(foo_t, foo_node), foo_compare,
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* debugging? 0 : UU_AVL_POOL_DEBUG);
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* ...
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*/
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uu_list_pool_t *uu_list_pool_create(const char *, size_t, size_t,
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uu_compare_fn_t *, uint32_t);
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#define UU_LIST_POOL_DEBUG 0x00000001
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void uu_list_pool_destroy(uu_list_pool_t *);
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/*
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* usage:
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*
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* foo_t *a;
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* a = malloc(sizeof (*a));
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* uu_list_node_init(a, &a->foo_list, pool);
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* ...
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* uu_list_node_fini(a, &a->foo_list, pool);
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* free(a);
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*/
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void uu_list_node_init(void *, uu_list_node_t *, uu_list_pool_t *);
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void uu_list_node_fini(void *, uu_list_node_t *, uu_list_pool_t *);
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uu_list_t *uu_list_create(uu_list_pool_t *, void *_parent, uint32_t);
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#define UU_LIST_DEBUG 0x00000001
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#define UU_LIST_SORTED 0x00000002 /* list is sorted */
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void uu_list_destroy(uu_list_t *); /* list must be empty */
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size_t uu_list_numnodes(uu_list_t *);
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void *uu_list_first(uu_list_t *);
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void *uu_list_last(uu_list_t *);
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void *uu_list_next(uu_list_t *, void *);
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void *uu_list_prev(uu_list_t *, void *);
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int uu_list_walk(uu_list_t *, uu_walk_fn_t *, void *, uint32_t);
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uu_list_walk_t *uu_list_walk_start(uu_list_t *, uint32_t);
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void *uu_list_walk_next(uu_list_walk_t *);
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void uu_list_walk_end(uu_list_walk_t *);
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void *uu_list_find(uu_list_t *, void *, void *, uu_list_index_t *);
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void uu_list_insert(uu_list_t *, void *, uu_list_index_t);
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void *uu_list_nearest_next(uu_list_t *, uu_list_index_t);
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void *uu_list_nearest_prev(uu_list_t *, uu_list_index_t);
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void *uu_list_teardown(uu_list_t *, void **);
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void uu_list_remove(uu_list_t *, void *);
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/*
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* lists: interfaces for non-sorted lists only
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*/
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int uu_list_insert_before(uu_list_t *, void *_target, void *_elem);
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int uu_list_insert_after(uu_list_t *, void *_target, void *_elem);
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/*
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* avl trees: opaque structures
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*/
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typedef struct uu_avl_pool uu_avl_pool_t;
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typedef struct uu_avl uu_avl_t;
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typedef struct uu_avl_node {
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#ifdef _LP64
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uintptr_t uan_opaque[3];
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#else
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uintptr_t uan_opaque[4];
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#endif
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} uu_avl_node_t;
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typedef struct uu_avl_walk uu_avl_walk_t;
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typedef uintptr_t uu_avl_index_t;
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/*
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* avl trees: interface
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*
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* basic usage:
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* typedef struct foo {
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* ...
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* uu_avl_node_t foo_node;
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* ...
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* } foo_t;
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*
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* static int
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* foo_compare(void *l_arg, void *r_arg, void *private)
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* {
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* foo_t *l = l_arg;
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* foo_t *r = r_arg;
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*
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* if (... l greater than r ...)
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* return (1);
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* if (... l less than r ...)
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* return (-1);
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* return (0);
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* }
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*
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* ...
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* // at initialization time
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* foo_pool = uu_avl_pool_create("foo_pool",
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* sizeof (foo_t), offsetof(foo_t, foo_node), foo_compare,
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* debugging? 0 : UU_AVL_POOL_DEBUG);
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* ...
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*/
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uu_avl_pool_t *uu_avl_pool_create(const char *, size_t, size_t,
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uu_compare_fn_t *, uint32_t);
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#define UU_AVL_POOL_DEBUG 0x00000001
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void uu_avl_pool_destroy(uu_avl_pool_t *);
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/*
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* usage:
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*
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* foo_t *a;
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* a = malloc(sizeof (*a));
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* uu_avl_node_init(a, &a->foo_avl, pool);
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* ...
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* uu_avl_node_fini(a, &a->foo_avl, pool);
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* free(a);
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*/
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void uu_avl_node_init(void *, uu_avl_node_t *, uu_avl_pool_t *);
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void uu_avl_node_fini(void *, uu_avl_node_t *, uu_avl_pool_t *);
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uu_avl_t *uu_avl_create(uu_avl_pool_t *, void *_parent, uint32_t);
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#define UU_AVL_DEBUG 0x00000001
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void uu_avl_destroy(uu_avl_t *); /* list must be empty */
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size_t uu_avl_numnodes(uu_avl_t *);
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void *uu_avl_first(uu_avl_t *);
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void *uu_avl_last(uu_avl_t *);
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void *uu_avl_next(uu_avl_t *, void *);
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void *uu_avl_prev(uu_avl_t *, void *);
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int uu_avl_walk(uu_avl_t *, uu_walk_fn_t *, void *, uint32_t);
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uu_avl_walk_t *uu_avl_walk_start(uu_avl_t *, uint32_t);
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void *uu_avl_walk_next(uu_avl_walk_t *);
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void uu_avl_walk_end(uu_avl_walk_t *);
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void *uu_avl_find(uu_avl_t *, void *, void *, uu_avl_index_t *);
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void uu_avl_insert(uu_avl_t *, void *, uu_avl_index_t);
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void *uu_avl_nearest_next(uu_avl_t *, uu_avl_index_t);
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void *uu_avl_nearest_prev(uu_avl_t *, uu_avl_index_t);
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void *uu_avl_teardown(uu_avl_t *, void **);
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void uu_avl_remove(uu_avl_t *, void *);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _LIBUUTIL_H */
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