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/*
Variables Plugin for Miranda-IM (www.miranda-im.org)
Copyright 2003-2006 P. Boon
This program is mir_free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "stdafx.h"
struct TokenRegisterEntry
{
TOKENREGISTEREX tr;
DWORD nameHash;
};
static int CompareTokens(const TokenRegisterEntry* p1, const TokenRegisterEntry* p2)
{
if (p1->nameHash == p2->nameHash)
return 0;
return (p1->nameHash < p2->nameHash) ? -1 : 1;
}
static LIST<TokenRegisterEntry> tokens(100, CompareTokens);
static mir_cs csRegister;
unsigned long int hashlittle(void *key, size_t length, unsigned long int initval);
static DWORD NameHashFunction(wchar_t *tszStr)
{
return (DWORD)hashlittle(tszStr, mir_wstrlen(tszStr)*sizeof(wchar_t), 0);
}
static TokenRegisterEntry* FindTokenRegisterByName(wchar_t *name)
{
TokenRegisterEntry temp;
temp.nameHash = NameHashFunction(name);
return tokens.find(&temp);
}
int registerIntToken(wchar_t *szToken, wchar_t *(*parseFunction)(ARGUMENTSINFO *ai), int extraFlags, char* szHelpText)
{
TOKENREGISTEREX tr = { 0 };
tr.cbSize = sizeof(tr);
tr.flags = TRF_FREEMEM | TRF_TCHAR | TRF_PARSEFUNC | extraFlags;
//tr.memType = TR_MEM_VARIABLES;
tr.memType = TR_MEM_MIRANDA;
tr.szHelpText = szHelpText;
tr.tszTokenString = szToken;
tr.parseFunctionT = parseFunction;
return registerToken(0, (LPARAM)&tr);
}
int deRegisterToken(wchar_t *token)
{
if (token == NULL)
return -1;
TokenRegisterEntry *tre;
{
mir_cslock lck(csRegister);
tre = FindTokenRegisterByName(token);
if (tre == NULL)
return -1;
tokens.remove(tre);
}
if (!(tre->tr.flags & TRF_PARSEFUNC) && tre->tr.szService != NULL)
mir_free(tre->tr.szService);
if (tre->tr.tszTokenString != NULL)
mir_free(tre->tr.tszTokenString);
if (tre->tr.szHelpText != NULL)
mir_free(tre->tr.szHelpText);
if ((tre->tr.flags & TRF_CLEANUP) && !(tre->tr.flags & TRF_CLEANUPFUNC) && tre->tr.szCleanupService != NULL)
mir_free(tre->tr.szCleanupService);
mir_free(tre);
return 0;
}
INT_PTR registerToken(WPARAM, LPARAM lParam)
{
DWORD hash;
TOKENREGISTEREX *newVr = (TOKENREGISTEREX*)lParam;
if (newVr == NULL || newVr->szTokenString == NULL || newVr->cbSize <= 0)
return -1;
if (newVr->flags & TRF_TCHAR) {
deRegisterToken(newVr->tszTokenString);
hash = NameHashFunction(newVr->tszTokenString);
}
else {
WCHAR *wtoken = mir_a2u(newVr->szTokenString);
deRegisterToken(wtoken);
hash = NameHashFunction(wtoken);
mir_free(wtoken);
}
TokenRegisterEntry *tre = (TokenRegisterEntry*)mir_alloc(sizeof(TokenRegisterEntry));
if (tre == NULL)
return -1;
memcpy(&tre->tr, newVr, newVr->cbSize);
tre->nameHash = hash;
if (!mir_wstrcmp(newVr->tszTokenString, L"alias"))
log_debugA("alias");
if (!(newVr->flags & TRF_PARSEFUNC) && newVr->szService != NULL)
tre->tr.szService = mir_strdup(newVr->szService);
if (newVr->flags & TRF_TCHAR)
tre->tr.tszTokenString = mir_wstrdup(newVr->tszTokenString);
else
tre->tr.tszTokenString = mir_a2u(newVr->szTokenString);
if (newVr->szHelpText != NULL)
tre->tr.szHelpText = mir_strdup(newVr->szHelpText);
if ((newVr->flags & TRF_CLEANUP) && !(newVr->flags & TRF_CLEANUPFUNC) && newVr->szCleanupService != NULL)
tre->tr.szCleanupService = mir_strdup(newVr->szCleanupService);
mir_cslock lck(csRegister);
tokens.insert(tre);
return 0;
}
TOKENREGISTEREX *searchRegister(wchar_t *tvar, int type)
{
if (tvar == NULL)
return 0;
mir_cslock lck(csRegister);
TokenRegisterEntry *tre = FindTokenRegisterByName(tvar);
if (tre == NULL || (type != 0 && (tre->tr.flags & (TRF_FIELD | TRF_FUNCTION)) != 0 && !(tre->tr.flags & type)))
return NULL;
return &tre->tr;
}
wchar_t *parseFromRegister(ARGUMENTSINFO *ai)
{
if (ai == NULL || ai->argc == 0 || ai->targv[0] == NULL)
return NULL;
INT_PTR callRes = 0;
wchar_t *res = NULL;
mir_cslock lck(csRegister);
/* note the following limitation: you cannot add/remove tokens during a call from a different thread */
TOKENREGISTEREX *thisVr = searchRegister(ai->targv[0], 0);
if (thisVr == NULL)
return NULL;
TOKENREGISTEREX trCopy = *thisVr;
// ai contains WCHARs, convert to chars because the tr doesn't support WCHARs
if (!(thisVr->flags & TRF_TCHAR)) {
// unicode variables calls a non-unicode plugin
ARGUMENTSINFO cAi;
memcpy(&cAi, ai, sizeof(ARGUMENTSINFO));
cAi.argv = (char**)mir_alloc(ai->argc*sizeof(char *));
for (unsigned j = 0; j < ai->argc; j++)
cAi.argv[j] = mir_u2a(ai->targv[j]);
if (thisVr->flags & TRF_PARSEFUNC)
callRes = (INT_PTR)thisVr->parseFunction(&cAi);
else if (thisVr->szService != NULL)
callRes = CallService(thisVr->szService, 0, (LPARAM)&cAi);
for (unsigned j = 0; j < cAi.argc; j++)
mir_free(cAi.argv[j]);
if ((char *)callRes != NULL)
res = mir_a2u((char*)callRes);
}
else {
// unicode variables calls unicode plugin
if (thisVr->flags & TRF_PARSEFUNC)
callRes = (INT_PTR)thisVr->parseFunctionT(ai);
else if (thisVr->szService != NULL)
callRes = CallService(thisVr->szService, 0, (LPARAM)ai);
if ((wchar_t*)callRes != NULL)
res = mir_wstrdup((wchar_t*)callRes);
}
if (callRes != NULL) {
if (trCopy.flags & TRF_CLEANUP) {
if (trCopy.flags & TRF_CLEANUPFUNC)
trCopy.cleanupFunctionT((wchar_t*)callRes);
else if (trCopy.szCleanupService != NULL)
CallService(trCopy.szCleanupService, 0, (LPARAM)callRes);
}
if ((trCopy.flags & TRF_FREEMEM) && trCopy.memType == TR_MEM_MIRANDA)
mir_free((void*)callRes);
}
return res;
}
TOKENREGISTEREX* getTokenRegister(int i)
{
mir_cslock lck(csRegister);
return (i >= tokens.getCount() || i < 0) ? NULL : &tokens[i]->tr;
}
int getTokenRegisterCount()
{
mir_cslock lck(csRegister);
return tokens.getCount();
}
/////////////////////////////////////////////////////////////////////////////////////////
int initTokenRegister()
{
return 0;
}
int deinitTokenRegister()
{
for (int i = 0; i < tokens.getCount(); i++) {
TokenRegisterEntry *tre = tokens[i];
if (!(tre->tr.flags & TRF_PARSEFUNC) && tre->tr.szService != NULL)
mir_free(tre->tr.szService);
if (tre->tr.tszTokenString != NULL)
mir_free(tre->tr.tszTokenString);
if (tre->tr.szHelpText != NULL)
mir_free(tre->tr.szHelpText);
if ((tre->tr.flags & TRF_CLEANUP) && !(tre->tr.flags & TRF_CLEANUPFUNC) && tre->tr.szCleanupService != NULL)
mir_free(tre->tr.szCleanupService);
mir_free(tre);
}
tokens.destroy();
return 0;
}
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