lib/libtnf/util.c

	util.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 *  Copyright (c) 1994, by Sun Microsytems, Inc.
 */

#pragma ident   "%Z%%M% %I% %E% SMI"

#include "libtnf.h"

/*
 *
 */

static struct ntop {
    char        *name;
    tag_props_t prop;
} ntop[] = {
{ TNF_N_INLINE,     TAG_PROP_INLINE },
{ TNF_N_TAGGED,     TAG_PROP_TAGGED },
{ TNF_N_SCALAR,     TAG_PROP_SCALAR },
{ TNF_N_DERIVED,    TAG_PROP_DERIVED },
{ TNF_N_ARRAY,      TAG_PROP_ARRAY },
{ TNF_N_STRING,     TAG_PROP_STRING },
{ TNF_N_STRUCT,     TAG_PROP_STRUCT },
{ TNF_N_TYPE,       TAG_PROP_TYPE },
{ NULL,         0}
};

static struct ntok {
    char        *name;
    tnf_kind_t  kind;
} scalar_ntok[] = {
{ TNF_N_CHAR,       TNF_K_CHAR },
{ TNF_N_INT8,       TNF_K_INT8 },
{ TNF_N_INT16,      TNF_K_INT16 },
{ TNF_N_INT32,      TNF_K_INT32 },
{ TNF_N_UINT8,      TNF_K_UINT8 },
{ TNF_N_UINT16,     TNF_K_UINT16 },
{ TNF_N_UINT32,     TNF_K_UINT32 },
{ TNF_N_INT64,      TNF_K_INT64 },
{ TNF_N_UINT64,     TNF_K_UINT64 },
{ TNF_N_FLOAT32,    TNF_K_FLOAT32 },
{ TNF_N_FLOAT64,    TNF_K_FLOAT64 },
{ NULL,         0 }
};

/*
 * Compute tag props
 */

tag_props_t
_tnf_get_props(TNF *tnf, tnf_ref32_t *tag)
{
    tag_props_t props;
    struct ntop     *p;

    props = 0;

    p = ntop;
    /* No need to get base tag for inherited properties */
    while (p->name) {
        if (HAS_PROPERTY(tnf, tag, p->name))
            props |= p->prop;
        p++;
    }

    return (props);
}

/*
 * Data kind depends on implementation properties of base tag
 */

tnf_kind_t
_tnf_get_kind(TNF *tnf, tnf_ref32_t *tag)
{
    tnf_ref32_t *base_tag;
    char        *base_name;

    base_tag    = _tnf_get_base_tag(tnf, tag);
    base_name   = _tnf_get_name(tnf, base_tag);

    if (HAS_PROPERTY(tnf, base_tag, TNF_N_SCALAR)) {
        struct ntok     *p;

        p = scalar_ntok;
        while (p->name) {
            if (strcmp(p->name, base_name) == 0)
                return (p->kind);
            p++;
        }
        return (TNF_K_SCALAR);

    } else if (HAS_PROPERTY(tnf, base_tag, TNF_N_ARRAY)) {
        if (strcmp(base_name, TNF_N_STRING) == 0)
            return (TNF_K_STRING);
        else
            return (TNF_K_ARRAY);

    } else if (HAS_PROPERTY(tnf, base_tag, TNF_N_TYPE)) {
        return (TNF_K_TYPE);

    } else if (HAS_PROPERTY(tnf, base_tag, TNF_N_STRUCT)) {
        return (TNF_K_STRUCT);

    } else {        /* abstract */
        return (TNF_K_UNKNOWN);
    }
}