/*

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 *   - Redistributions of source code must retain the above copyright

 *     notice, this list of conditions and the following disclaimer.

 *

 *   - Redistributions in binary form must reproduce the above copyright

 *     notice, this list of conditions and the following disclaimer in the

 *     documentation and/or other materials provided with the distribution.

 *

 *   - Neither the name of Oracle nor the names of its

 *     contributors may be used to endorse or promote products derived

 *     from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS

 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR

 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF

 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

/*

 * This source code is provided to illustrate the usage of a given feature

 * or technique and has been deliberately simplified. Additional steps

 * required for a production-quality application, such as security checks,

 * input validation and proper error handling, might not be present in

 * this sample code.

 */

/* Table of byte arrays (e.g. char* string + NULL byte) */

/*

 * Strings are unique by their own contents, since the string itself

 *   is the Key, and the hprof_table.c guarantees that keys don't move,

 *   this works out perfect. Any key in this table can be used as

 *   an char*.

 *

 * This does mean that this table has dynamically sized keys.

 *

 * Care needs to be taken to make sure the NULL byte is included, not for

 *   the sake of hprof_table.c, but so that the key can be used as a char*.

 *

 */

#include "hprof.h"

void

string_init(void)

{

    HPROF_ASSERT(gdata->string_table==NULL);

    gdata->string_table = table_initialize("Strings", 4096, 4096, 1024, 0);

}

StringIndex

string_find_or_create(const char *str)

{

    return table_find_or_create_entry(gdata->string_table,

                (void*)str, (int)strlen(str)+1, NULL, NULL);

}

static void

list_item(TableIndex index, void *str, int len, void *info_ptr, void *arg)

{

    debug_message( "0x%08x: String \"%s\"\n", index, (const char *)str);

}

void

string_list(void)

{

    debug_message(

        "-------------------- String Table ------------------------\n");

    table_walk_items(gdata->string_table, &list_item, NULL);

    debug_message(

        "----------------------------------------------------------\n");

}

void

string_cleanup(void)

{

    table_cleanup(gdata->string_table, NULL, NULL);

    gdata->string_table = NULL;

}

char *

string_get(StringIndex index)

{

    void *key;

    int   key_len;

    table_get_key(gdata->string_table, index, &key, &key_len);

    HPROF_ASSERT(key_len>0);

    return (char*)key;

}

int

string_get_len(StringIndex index)

{

    void *key;

    int   key_len;

    table_get_key(gdata->string_table, index, &key, &key_len);

    HPROF_ASSERT(key_len>0);

    return key_len-1;

}