92 lines
2.3 KiB
C++
92 lines
2.3 KiB
C++
/**
|
|
* @file message_string_table.cpp
|
|
* @brief static string table for message template
|
|
*
|
|
* $LicenseInfo:firstyear=2001&license=viewerlgpl$
|
|
* Second Life Viewer Source Code
|
|
* Copyright (C) 2010, Linden Research, Inc.
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation;
|
|
* version 2.1 of the License only.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*
|
|
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
|
|
* $/LicenseInfo$
|
|
*/
|
|
|
|
#include "linden_common.h"
|
|
|
|
#include "llerror.h"
|
|
#include "message.h"
|
|
|
|
inline U32 message_hash_my_string(const char *str)
|
|
{
|
|
U32 retval = 0;
|
|
while (*str++)
|
|
{
|
|
retval += *str;
|
|
retval <<= 1;
|
|
}
|
|
return (retval % MESSAGE_NUMBER_OF_HASH_BUCKETS);
|
|
}
|
|
|
|
|
|
|
|
LLMessageStringTable::LLMessageStringTable()
|
|
: mUsed(0)
|
|
{
|
|
for (U32 i = 0; i < MESSAGE_NUMBER_OF_HASH_BUCKETS; i++)
|
|
{
|
|
mEmpty[i] = TRUE;
|
|
mString[i][0] = 0;
|
|
}
|
|
}
|
|
|
|
|
|
LLMessageStringTable::~LLMessageStringTable()
|
|
{ }
|
|
|
|
|
|
char* LLMessageStringTable::getString(const char *str)
|
|
{
|
|
U32 hash_value = message_hash_my_string(str);
|
|
while (!mEmpty[hash_value])
|
|
{
|
|
if (!strncmp(str, mString[hash_value], MESSAGE_MAX_STRINGS_LENGTH))
|
|
{
|
|
return mString[hash_value];
|
|
}
|
|
else
|
|
{
|
|
hash_value++;
|
|
hash_value %= MESSAGE_NUMBER_OF_HASH_BUCKETS;
|
|
}
|
|
}
|
|
// not found, so add!
|
|
strncpy(mString[hash_value], str, MESSAGE_MAX_STRINGS_LENGTH); /* Flawfinder: ignore */
|
|
mString[hash_value][MESSAGE_MAX_STRINGS_LENGTH - 1] = 0;
|
|
mEmpty[hash_value] = FALSE;
|
|
mUsed++;
|
|
if (mUsed >= MESSAGE_NUMBER_OF_HASH_BUCKETS - 1)
|
|
{
|
|
U32 i;
|
|
LL_INFOS() << "Dumping string table before crashing on HashTable full!" << LL_ENDL;
|
|
for (i = 0; i < MESSAGE_NUMBER_OF_HASH_BUCKETS; i++)
|
|
{
|
|
LL_INFOS() << "Entry #" << i << ": " << mString[i] << LL_ENDL;
|
|
}
|
|
}
|
|
return mString[hash_value];
|
|
}
|
|
|