amxmodx/modules/sqlite/oldcompat_sql.cpp

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// vim: set ts=4 sw=4 tw=99 noet:
//
// AMX Mod X, based on AMX Mod by Aleksander Naszko ("OLO").
// Copyright (C) The AMX Mod X Development Team.
//
// This software is licensed under the GNU General Public License, version 3 or higher.
// Additional exceptions apply. For full license details, see LICENSE.txt or visit:
// https://alliedmods.net/amxmodx-license
//
// SQLite Module
//
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#include <stdio.h>
#include "sh_list.h"
#include "sqlite_header.h"
using namespace SourceMod;
struct olddb_s
{
IDatabase *pDatabase;
char error[255];
int errcode;
};
struct oldresult_s
{
IQuery *pQuery;
QueryInfo info;
bool firstCall;
};
void FreeOldDb(void *ptr, unsigned int hndl)
{
olddb_s *old = (olddb_s *)ptr;
if (old->pDatabase)
{
old->pDatabase->FreeHandle();
old->pDatabase = NULL;
}
delete old;
}
void FreeOldResult(void *ptr, unsigned int hndl)
{
oldresult_s *oldres = (oldresult_s *)ptr;
if (oldres->pQuery)
{
oldres->pQuery->FreeHandle();
oldres->pQuery = NULL;
}
delete oldres;
}
//native Sql:dbi_connect(_host[], _user[], _pass[], _dbname[], _error[]="", _maxlength=0);
static cell AMX_NATIVE_CALL dbi_connect(AMX *amx, cell *params)
{
int len;
DatabaseInfo info;
char *name = MF_GetAmxString(amx, params[4], 3, &len);
char path[255];
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info.host = "";
info.user = "";
info.pass = "";
info.database = name;
int err;
char error[512];
/** if there is an older database, read there instead of the new path */
MF_BuildPathnameR(path, sizeof(path)-1, "%s", info.database);
FILE *fp = fopen(path, "rb");
if (fp)
{
fclose(fp);
info.database = path;
} else {
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MF_BuildPathnameR(path, sizeof(path)-1, "%s/sqlite3/%s.sq3",
MF_GetLocalInfo("amxx_datadir", "addons/amxmodx/data"),
info.database);
info.database = path;
}
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IDatabase *pDatabase = g_Sqlite.Connect(&info, &err, error, sizeof(error)-1);
if (!pDatabase)
{
MF_SetAmxString(amx, params[5], error, params[6]);
return 0;
}
olddb_s *old = new olddb_s;
int hndl;
old->pDatabase = pDatabase;
hndl = MakeHandle(old, Handle_OldDb, FreeOldDb);
return hndl;
}
//native Result:dbi_query(Sql:_sql, _query[], {Float,_}:...);
static cell AMX_NATIVE_CALL dbi_query(AMX *amx, cell *params)
{
olddb_s *old = (olddb_s *)GetHandle(params[1], Handle_OldDb);
if (!old)
{
MF_LogError(amx, AMX_ERR_NATIVE, "Invalid DBI handle %d", params[1]);
return -1;
}
int len;
char *queryString = MF_FormatAmxString(amx, params, 2, &len);
IQuery *pQuery = old->pDatabase->PrepareQuery(queryString);
QueryInfo info;
old->error[0] = '\0';
old->errcode = 0;
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if (!pQuery->Execute2(&info, old->error, 254))
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{
old->errcode = info.errorcode;
return -1;
} else {
if (info.rs && info.rs->RowCount())
{
oldresult_s *oldrs = new oldresult_s;
int hndl;
oldrs->info = info;
oldrs->pQuery = pQuery;
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oldrs->firstCall = true;
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hndl = MakeHandle(oldrs, Handle_OldResult, FreeOldResult);
return hndl;
} else {
pQuery->FreeHandle();
return 0;
}
}
/** never reach here */
return 0;
}
//native Result:dbi_query2(Sql:_sql, &rows, _query[], {Float,_}:...);
static cell AMX_NATIVE_CALL dbi_query2(AMX *amx, cell *params)
{
olddb_s *old = (olddb_s *)GetHandle(params[1], Handle_OldDb);
if (!old)
{
MF_LogError(amx, AMX_ERR_NATIVE, "Invalid DBI handle %d", params[1]);
return -1;
}
int len;
char *queryString = MF_FormatAmxString(amx, params, 3, &len);
IQuery *pQuery = old->pDatabase->PrepareQuery(queryString);
QueryInfo info;
old->error[0] = '\0';
old->errcode = 0;
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if (!pQuery->Execute2(&info, old->error, 254))
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{
old->errcode = info.errorcode;
return -1;
} else {
cell *addr = MF_GetAmxAddr(amx, params[2]);
*addr = static_cast<cell>(info.affected_rows);
if (info.rs && info.rs->RowCount())
{
oldresult_s *oldrs = new oldresult_s;
int hndl;
oldrs->info = info;
oldrs->pQuery = pQuery;
oldrs->firstCall = true;
hndl = MakeHandle(oldrs, Handle_OldResult, FreeOldResult);
return hndl;
} else {
pQuery->FreeHandle();
return 0;
}
}
/** never reach here */
return 0;
}
//native dbi_nextrow(Result:_result);
static cell AMX_NATIVE_CALL dbi_nextrow(AMX *amx, cell *params)
{
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if (params[1] == 0)
{
return 0;
}
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oldresult_s *oldrs = (oldresult_s *)GetHandle(params[1], Handle_OldResult);
if (!oldrs)
{
MF_LogError(amx, AMX_ERR_NATIVE, "Invalid DBI result handle %d", params[1]);
return 0;
}
if (oldrs->firstCall)
{
oldrs->firstCall = false;
return (oldrs->info.rs->IsDone() ? 0 : 1);
} else {
oldrs->info.rs->NextRow();
return (oldrs->info.rs->IsDone() ? 0 : 1);
}
}
//native dbi_field(Result:_result, _fieldnum, {Float,_}:... );
static cell AMX_NATIVE_CALL dbi_field(AMX *amx, cell *params)
{
oldresult_s *oldrs = (oldresult_s *)GetHandle(params[1], Handle_OldResult);
if (!oldrs)
{
MF_LogError(amx, AMX_ERR_NATIVE, "Invalid DBI result handle %d", params[1]);
return 0;
}
IResultSet *rs = oldrs->info.rs;
IResultRow *rr = rs->GetRow();
unsigned int num = (unsigned int)params[2] - 1;
if (num >= rs->FieldCount())
{
MF_LogError(amx, AMX_ERR_NATIVE, "Invalid column %d", params[2]);
return 0;
}
cell stype = params[0] / sizeof(cell);
const char *data = rr->GetString(num);
if (!data)
data = "";
switch (stype)
{
case 2:
{
return atoi(data);
break;
}
case 3:
{
cell *destaddr = MF_GetAmxAddr(amx, params[3]);
REAL fdata = atof(data);
*destaddr = amx_ftoc(fdata);
return 1;
break;
}
case 4:
{
return MF_SetAmxString(amx, params[3], data, params[4]);
break;
}
}
/** never reach here */
return 0;
}
//native dbi_result(Result:_result, _field[], {Float,_}:... );
static cell AMX_NATIVE_CALL dbi_result(AMX *amx, cell *params)
{
oldresult_s *oldrs = (oldresult_s *)GetHandle(params[1], Handle_OldResult);
if (!oldrs)
{
MF_LogError(amx, AMX_ERR_NATIVE, "Invalid DBI result handle %d", params[1]);
return 0;
}
IResultSet *rs = oldrs->info.rs;
IResultRow *rr = rs->GetRow();
unsigned int num;
bool found = false;
unsigned int fields = rs->FieldCount();
int len;
char *field = MF_GetAmxString(amx, params[2], 0, &len);
for (unsigned int i=0; i<fields; i++)
{
if (strcmp(field, rs->FieldNumToName(i)) == 0)
{
num = i;
found = true;
break;
}
}
if (!found)
{
MF_LogError(amx, AMX_ERR_NATIVE, "Unknown column \"%s\"", field);
return 0;
}
cell stype = params[0] / sizeof(cell);
const char *data = rr->GetString(num);
if (!data)
data = "";
switch (stype)
{
case 2:
{
return atoi(data);
break;
}
case 3:
{
cell *destaddr = MF_GetAmxAddr(amx, params[3]);
REAL fdata = atof(data);
*destaddr = amx_ftoc(fdata);
return 1;
break;
}
case 4:
{
return MF_SetAmxString(amx, params[3], data, params[4]);
break;
}
}
/** never reach here */
return 0;
}
//native dbi_num_rows(Result:_result);
static cell AMX_NATIVE_CALL dbi_num_rows(AMX *amx, cell *params)
{
oldresult_s *oldrs = (oldresult_s *)GetHandle(params[1], Handle_OldResult);
if (!oldrs)
{
MF_LogError(amx, AMX_ERR_NATIVE, "Invalid DBI result handle %d", params[1]);
return 0;
}
return oldrs->info.rs->RowCount();
}
//native dbi_free_result(&Result:result);
static cell AMX_NATIVE_CALL dbi_free_result(AMX *amx, cell *params)
{
cell *_r = MF_GetAmxAddr(amx, params[1]);
cell num = *_r;
if (!num)
{
return 1;
}
oldresult_s *oldrs = (oldresult_s *)GetHandle(num, Handle_OldResult);
if (!oldrs)
{
MF_LogError(amx, AMX_ERR_NATIVE, "Invalid DBI result handle %d", num);
return 0;
}
FreeHandle(num);
*_r = 0;
return 1;
}
//native dbi_close(&Sql:_sql);
static cell AMX_NATIVE_CALL dbi_close(AMX *amx, cell *params)
{
cell *_r = MF_GetAmxAddr(amx, params[1]);
cell num = *_r;
olddb_s *old = (olddb_s *)GetHandle(num, Handle_OldDb);
if (!old)
{
MF_LogError(amx, AMX_ERR_NATIVE, "Invalid DBI handle %d", num);
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return 0;
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}
FreeHandle(num);
*_r = 0;
return 1;
}
//native dbi_error(Sql:_sql, _error[], _len);
static cell AMX_NATIVE_CALL dbi_error(AMX *amx, cell *params)
{
olddb_s *old = (olddb_s *)GetHandle(params[1], Handle_OldDb);
if (!old)
{
MF_LogError(amx, AMX_ERR_NATIVE, "Invalid DBI handle %d", params[1]);
return -1;
}
MF_SetAmxString(amx, params[2], old->error, params[3]);
return old->errcode;
}
//native dbi_type(_type[], _len);
static cell AMX_NATIVE_CALL dbi_type(AMX *amx, cell *params)
{
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return MF_SetAmxString(amx, params[1], g_Sqlite.NameString(), params[2]);
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}
//native dbi_num_fields(Result:result);
static cell AMX_NATIVE_CALL dbi_num_fields(AMX *amx, cell *params)
{
oldresult_s *oldrs = (oldresult_s *)GetHandle(params[1], Handle_OldResult);
if (!oldrs)
{
MF_LogError(amx, AMX_ERR_NATIVE, "Invalid DBI result handle %d", params[1]);
return 0;
}
return oldrs->info.rs->FieldCount();
}
//native dbi_field_name(Result:result, field, name[], maxLength);
static cell AMX_NATIVE_CALL dbi_field_name(AMX *amx, cell *params)
{
oldresult_s *oldrs = (oldresult_s *)GetHandle(params[1], Handle_OldResult);
if (!oldrs)
{
MF_LogError(amx, AMX_ERR_NATIVE, "Invalid DBI result handle %d", params[1]);
return 0;
}
const char *name = oldrs->info.rs->FieldNumToName(static_cast<unsigned int>(params[2]-1));
if (!name)
return 0;
MF_SetAmxString(amx, params[3], name, params[4]);
return 1;
}
AMX_NATIVE_INFO g_OldCompatNatives[] =
{
{ "dbi_connect", dbi_connect },
{ "dbi_query", dbi_query },
{ "dbi_query2", dbi_query2 },
{ "dbi_field", dbi_field },
{ "dbi_nextrow", dbi_nextrow },
{ "dbi_close", dbi_close },
{ "dbi_error", dbi_error },
{ "dbi_type", dbi_type },
{ "dbi_free_result", dbi_free_result },
{ "dbi_num_rows", dbi_num_rows },
{ "dbi_result", dbi_result },
{ "dbi_num_fields", dbi_num_fields },
{ "dbi_field_name", dbi_field_name },
{ NULL, NULL }
};