251cced1f8
Various minor things done to project files Updated sample extension project file and updated makefile to the new unified version (more changes likely on the way) Updated regex project file and makefile --HG-- extra : convert_revision : svn%3A39bc706e-5318-0410-9160-8a85361fbb7c/trunk%401971
483 lines
10 KiB
C++
483 lines
10 KiB
C++
/**
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* vim: set ts=4 :
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* =============================================================================
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* SourceMod SQLite Extension
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* Copyright (C) 2004-2008 AlliedModders LLC. All rights reserved.
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* =============================================================================
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*
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* This program is free software; you can redistribute it and/or modify it under
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* the terms of the GNU General Public License, version 3.0, as published by the
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* Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* As a special exception, AlliedModders LLC gives you permission to link the
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* code of this program (as well as its derivative works) to "Half-Life 2," the
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* "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
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* by the Valve Corporation. You must obey the GNU General Public License in
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* all respects for all other code used. Additionally, AlliedModders LLC grants
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* this exception to all derivative works. AlliedModders LLC defines further
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* exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
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* or <http://www.sourcemod.net/license.php>.
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*
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* Version: $Id$
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*/
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#include <stdlib.h>
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#include "extension.h"
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#include "SqResults.h"
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#include "SqQuery.h"
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SqResults::SqResults(SqQuery *query) :
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m_pStmt(query->GetStmt()), m_Strings(1024),
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m_RowCount(0), m_MaxRows(0), m_Rows(NULL),
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m_CurRow(0), m_NextRow(0)
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{
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m_ColCount = sqlite3_column_count(m_pStmt);
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if (m_ColCount)
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{
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m_ColNames = new String[m_ColCount];
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for (unsigned int i=0; i<m_ColCount; i++)
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{
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m_ColNames[i].assign(sqlite3_column_name(m_pStmt, i));
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}
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} else {
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m_ColNames = NULL;
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}
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m_pMemory = m_Strings.GetMemTable();
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}
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SqResults::~SqResults()
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{
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delete [] m_ColNames;
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free(m_Rows);
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}
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unsigned int SqResults::GetRowCount()
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{
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return m_RowCount;
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}
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unsigned int SqResults::GetFieldCount()
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{
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return m_ColCount;
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}
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const char *SqResults::FieldNumToName(unsigned int columnId)
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{
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if (columnId >= m_ColCount)
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{
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return NULL;
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}
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return m_ColNames[columnId].c_str();
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}
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bool SqResults::FieldNameToNum(const char *name, unsigned int *columnId)
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{
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for (unsigned int i=0; i<m_ColCount; i++)
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{
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if (m_ColNames[i].compare(name) == 0)
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{
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if (columnId)
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{
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*columnId = i;
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}
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return true;
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}
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}
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return false;
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}
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void SqResults::ResetResultCount()
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{
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m_RowCount = 0;
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m_CurRow = 0;
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m_NextRow = 0;
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m_pMemory->Reset();
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}
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void SqResults::PushResult()
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{
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/* First make sure we can fit one more row */
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if (m_RowCount + 1 > m_MaxRows)
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{
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/* Create a new array */
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if (!m_Rows)
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{
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m_MaxRows = 8;
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m_Rows = (SqField *)malloc(sizeof(SqField) * m_ColCount * m_MaxRows);
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} else {
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m_MaxRows *= 2;
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m_Rows = (SqField *)realloc(m_Rows, sizeof(SqField) * m_ColCount * m_MaxRows);
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}
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}
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SqField *row = &m_Rows[m_RowCount * m_ColCount];
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for (unsigned int i=0; i<m_ColCount; i++)
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{
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row[i].type = sqlite3_column_type(m_pStmt, i);
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if (row[i].type == SQLITE_INTEGER)
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{
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row[i].u.idx = sqlite3_column_int(m_pStmt, i);
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row[i].size = sizeof(int);
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} else if (row[i].type == SQLITE_FLOAT) {
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row[i].u.f = (float)sqlite3_column_double(m_pStmt, i);
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row[i].size = sizeof(float);
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} else if (row[i].type == SQLITE_BLOB) {
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int bytes = sqlite3_column_bytes(m_pStmt, i);
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const void *pOrig;
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if ((pOrig = sqlite3_column_blob(m_pStmt, i)) != NULL)
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{
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void *pAddr;
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row[i].u.idx = m_pMemory->CreateMem(bytes, &pAddr);
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memcpy(pAddr, pOrig, bytes);
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} else {
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row[i].u.idx = -1;
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}
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row[i].size = sqlite3_column_bytes(m_pStmt, i);
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} else if (row[i].type == SQLITE_TEXT) {
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const char *str = (const char *)sqlite3_column_text(m_pStmt, i);
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if (str)
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{
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row[i].u.idx = m_Strings.AddString(str);
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} else {
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row[i].u.idx = -1;
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}
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row[i].size = sqlite3_column_bytes(m_pStmt, i);
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} else {
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row[i].size = 0;
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}
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}
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/* Finally, increase the row count */
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m_RowCount++;
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}
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bool SqResults::MoreRows()
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{
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return (m_CurRow < m_RowCount);
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}
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IResultRow *SqResults::FetchRow()
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{
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m_CurRow = m_NextRow;
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if (m_CurRow >= m_RowCount)
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{
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return NULL;
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}
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m_NextRow++;
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return this;
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}
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IResultRow *SqResults::CurrentRow()
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{
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if (!m_RowCount || m_CurRow >= m_RowCount)
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{
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return NULL;
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}
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return this;
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}
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bool SqResults::Rewind()
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{
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m_CurRow = 0;
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m_NextRow = 0;
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return true;
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}
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SqField *SqResults::GetField(unsigned int col)
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{
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if (m_CurRow >= m_RowCount || col >= m_ColCount)
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{
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return NULL;
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}
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return &m_Rows[(m_CurRow * m_ColCount) + col];
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}
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DBType SqResults::GetFieldType(unsigned int field)
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{
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/* Leaving unimplemented... */
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return DBType_Unknown;
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}
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DBType SqResults::GetFieldDataType(unsigned int field)
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{
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/* Leaving unimplemented... */
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return DBType_Unknown;
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}
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DBResult SqResults::GetString(unsigned int columnId, const char **pString, size_t *_length)
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{
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SqField *field = GetField(columnId);
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if (!field)
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{
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return DBVal_Error;
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}
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DBResult res = DBVal_Data;
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const char *ptr = NULL;
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size_t length = 0;
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if (field->type == SQLITE_TEXT || field->type == SQLITE_BLOB)
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{
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ptr = m_Strings.GetString(field->u.idx);
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length = field->size;
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} else if (field->type == SQLITE_INTEGER) {
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char number[24];
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field->size = UTIL_Format(number, sizeof(number), "%d", field->u.idx);
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field->type = SQLITE_TEXT;
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field->u.idx = m_Strings.AddString(number);
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ptr = m_Strings.GetString(field->u.idx);
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length = field->size;
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} else if (field->type == SQLITE_FLOAT) {
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char number[24];
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field->size = UTIL_Format(number, sizeof(number), "%f", field->u.f);
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field->type = SQLITE_TEXT;
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field->u.idx = m_Strings.AddString(number);
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ptr = m_Strings.GetString(field->u.idx);
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length = field->size;
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} else if (field->type == SQLITE_NULL) {
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res = DBVal_Null;
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}
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if (!ptr)
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{
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ptr = "";
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}
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if (pString)
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{
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*pString = ptr;
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}
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if (_length)
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{
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*_length = length;
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}
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return res;
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}
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DBResult SqResults::CopyString(unsigned int columnId, char *buffer, size_t maxlength, size_t *written)
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{
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SqField *field = GetField(columnId);
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if (!field)
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{
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return DBVal_Error;
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}
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DBResult res = DBVal_Data;
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if (field->type == SQLITE_TEXT || field->type == SQLITE_BLOB)
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{
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const char *ptr = m_Strings.GetString(field->u.idx);
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if (!ptr)
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{
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ptr = "";
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field->type = SQLITE_TEXT;
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res = DBVal_Null;
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}
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size_t wr = 0;
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if (field->type == SQLITE_TEXT)
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{
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wr = strncopy(buffer, ptr, maxlength);
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} else if (field->type == SQLITE_BLOB) {
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wr = (maxlength < field->size) ? maxlength : field->size;
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memcpy(buffer, ptr, wr);
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}
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if (written)
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{
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*written = wr;
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}
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return res;
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} else if (field->type == SQLITE_INTEGER) {
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size_t wr = 0;
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if (buffer)
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{
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wr = UTIL_Format(buffer, maxlength, "%d", field->u.idx);
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}
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if (written)
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{
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*written = wr;
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}
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return DBVal_Data;
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} else if (field->type == SQLITE_FLOAT) {
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size_t wr = 0;
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if (buffer)
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{
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wr = UTIL_Format(buffer, maxlength, "%f", field->u.f);
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}
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if (written)
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{
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*written = wr;
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}
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return DBVal_Data;
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}
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if (buffer)
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{
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strncopy(buffer, "", maxlength);
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}
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if (written)
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{
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*written = 0;
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}
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return DBVal_Null;
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}
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bool SqResults::IsNull(unsigned int columnId)
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{
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SqField *field = GetField(columnId);
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if (!field)
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{
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return true;
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}
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return (field->type == SQLITE_NULL);
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}
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unsigned int SqResults::GetDataSize(unsigned int columnId)
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{
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SqField *field = GetField(columnId);
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if (!field)
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{
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return 0;
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}
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return field->size;
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}
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DBResult SqResults::GetFloat(unsigned int columnId, float *pFloat)
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{
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SqField *field = GetField(columnId);
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if (!field)
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{
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return DBVal_Error;
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} else if (field->type == SQLITE_BLOB) {
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return DBVal_Error;
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}
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float fVal = 0.0f;
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if (field->type == SQLITE_FLOAT)
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{
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fVal = field->u.f;
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} else if (field->type == SQLITE_TEXT) {
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const char *ptr = m_Strings.GetString(field->u.idx);
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if (ptr)
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{
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fVal = (float)atof(ptr);
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}
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} else if (field->type == SQLITE_INTEGER) {
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fVal = (float)field->u.idx;
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}
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if (pFloat)
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{
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*pFloat = fVal;
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}
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return (field->type == SQLITE_NULL) ? DBVal_Null : DBVal_Data;
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}
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DBResult SqResults::GetInt(unsigned int columnId, int *pInt)
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{
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SqField *field = GetField(columnId);
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if (!field)
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{
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return DBVal_Error;
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} else if (field->type == SQLITE_BLOB) {
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return DBVal_Error;
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}
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int val = 0;
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if (field->type == SQLITE_INTEGER)
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{
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val = field->u.idx;
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} else if (field->type == SQLITE_TEXT) {
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const char *ptr = m_Strings.GetString(field->u.idx);
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if (ptr)
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{
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val = atoi(ptr);
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}
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} else if (field->type == SQLITE_FLOAT) {
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val = (int)field->u.f;
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}
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if (pInt)
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{
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*pInt = val;
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}
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return (field->type == SQLITE_NULL) ? DBVal_Null : DBVal_Data;
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}
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DBResult SqResults::GetBlob(unsigned int columnId, const void **pData, size_t *length)
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{
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SqField *field = GetField(columnId);
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if (!field)
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{
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return DBVal_Error;
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}
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void *addr = NULL;
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if (field->type == SQLITE_TEXT || field->type == SQLITE_BLOB)
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{
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addr = m_pMemory->GetAddress(field->u.idx);
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} else if (field->type == SQLITE_FLOAT || field->type == SQLITE_INTEGER) {
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addr = &(field->u);
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}
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if (pData)
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{
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*pData = addr;
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}
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if (length)
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{
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*length = field->size;
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}
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return (field->type == SQLITE_NULL) ? DBVal_Null : DBVal_Data;
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}
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DBResult SqResults::CopyBlob(unsigned int columnId, void *buffer, size_t maxlength, size_t *written)
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{
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SqField *field = GetField(columnId);
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if (!field)
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{
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return DBVal_Error;
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}
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void *addr = NULL;
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if (field->type == SQLITE_TEXT || field->type == SQLITE_BLOB)
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{
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addr = m_pMemory->GetAddress(field->u.idx);
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} else if (field->type == SQLITE_FLOAT || field->type == SQLITE_INTEGER) {
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addr = &(field->u);
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}
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size_t toCopy = field->size > maxlength ? maxlength : field->size;
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if (buffer && addr && toCopy)
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{
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memcpy(buffer, addr, toCopy);
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} else {
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toCopy = 0;
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}
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if (written)
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{
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*written = toCopy;
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}
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return (field->type == SQLITE_NULL) ? DBVal_Null : DBVal_Data;
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}
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