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sqlitei.inc
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sqlitei.inc
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/*
SQLite Improved v0.9.7 by Slice
Changelog:
2015-07-13:
* Update for 0.3.7 R2.
* All crash issues should be solved now, including the previous one that happened only on some servers.
2014-10-08:
* Fix crash when using stmt_fetch_row on an empty result (only affects Linux servers).
2013-10-07:
* Display errors from db_query. Works only on Windows.
2012-07-23:
* Fix problem with persistent databases (hopefully).
2012-07-21:
* Fix crash happening on Linux related to NULL values in db_free_result.
2012-07-15:
* Improvements to persistent databases.
2012-06-15:
* Fix compiler crash when db_query isn't used.
2012-05-27:
* Always throw warnings when invalid results are given to SQLitei functions.
* Even more improvements to stability!
* GetAmxBase is now updated with a JIT compatible version (all credits to Zeex).
* All the default DB functions (which are hooked by SQLitei) are now compatible with the JIT plugin.
* Fixed a bug in SA-MP's SQLite implementation where strings would contain signed characters instead of unsigned.
Most functions work just fine with both types of strings but strcmp, for one, does not.
* stmt_bind_value now deals with packed strings properly.
2012-03-22:
* db_query now accept extra parameters similar to those in stmt_bind_value, allowing
a very quick way to format and run queries!
2012-03-21:
* Fixed a rare crash that would occur if you closed a DB while having autofreed results open.
* The deprecated db_query_autofree is now removed. Simply use db_query instead.
* Fixed a problem where a certain integer would cause an invalid value.
* Added DB::TYPE_UINT, which inserts an unsigned integer.
An unsigned integer have values between 0 and 4294967295 as opposed to -2147483648 and 2147483647.
* Added helper function db_print_query.
* Added db_dump_table!
2012-03-01:
* db_free_result will now completely ignore invalid results (0).
2012-02-12:
* Added db_attach_memory_db and db_detach_memory_db.
2012-02-11:
* Added DB::TYPE_ARRAY, which allows you to insert and read arrays with statements!
* Improved error handling and increased some buffer sizes.
* Added db_begin_transaction, db_end_transaction, and db_set_asynchronous.
* Minor improvements here and there.
2012-02-10:
* A few bug fixes.
* Added db_field_is_null, which returns true if the field is a true NULL value (not just an empty string).
* Deprecated db_query_autofree.
2012-02-09:
* Defining WP_Hash prior to inclusion is no longer needed.
* db_query now has an optional third argument - enable autorelease, which is
true by default.
* Improved stability on freeing results:
- Freeing results twice will not crash the server anymore - it will just generate
a warning.
- Freeing a result that will be autoreleased will remove it from the autorelease pool.
* The compiler will no longer wrongfully detect recursion inside this include.
* Added db_query_int and db_query_float.
* Added db_get_struct_info and db_set_struct_info; used mainly internally.
* Added db_exec and db_insert.
* Performance improvements!
2012-02-08:
* db_print_result will no longer go to the end of the result.
* Added db_get_row_index, db_set_row_index, and db_rewind.
2012-02-07:
* db_get_field/db_get_field_assoc will not crash anymore with NULL values!
2011-12-21:
* Added two new types for stmt_bind_value:
- DB::TYPE_WP_HASH: Puts a BLOB value of a whirlpool hash from the given string into the query (ex. x'FFAA4411...').
- DB::TYPE_PLAYER_NAME: Puts a player name from the ID passed.
Note that DB_USE_WHIRLPOOL must be defined as true in order for DB::TYPE_WP_HASH to work.
* Made some optimizations and minor bug fixes.
* stmt_execute will now autofree the result unless the 3rd argument is false.
* Added the preprocessor options DE_DEBUG (logs debug info) and DB_LOG_TO_CHAT (prints log messages to chat).
* Improved the way results are dealt with internally to avoid crashes at all costs.
* Added debug messages pretty much everywhere.
2011-12-16:
* Added db_open_persistent, db_is_persistent, db_is_valid_persistent, and db_free_persistent.
* Added db_query_autofree.
* Added db_get_field_int and db_get_field_float.
* Corrected a few SQLite natives.
2011-12-15:
* Added stmt_autoclose.
* Memory usage decreased significantly.
* All functions now accept both packed and unpacked strings.
* Minor bug fixes and optimizations.
2011-12-14:
* Initial release.
*/
#if !defined _samp_included
#error Please include a_samp before sqlitei.
#endif
#if defined __fmt_funcinc && defined FormatSpecifier
#error Please include sqlitei before formatex.
#endif
#if !defined HTTP
#tryinclude <a_http>
#endif
#if !defined DB_MAX_PARAMS
#define DB_MAX_PARAMS 32
#endif
#if !defined DB_MAX_STATEMENTS
#define DB_MAX_STATEMENTS 16
#endif
#if !defined DB_MAX_STATEMENT_SIZE
#define DB_MAX_STATEMENT_SIZE 1024
#endif
#if !defined DB_MAX_FIELDS
#define DB_MAX_FIELDS 64
#endif
#if !defined DB_MAX_PERSISTENT_DATABASES
#define DB_MAX_PERSISTENT_DATABASES 4
#endif
#if !defined DB_USE_WHIRLPOOL
#define DB_USE_WHIRLPOOL false
#endif
#if !defined DB_DEBUG
#define DB_DEBUG false
#endif
#if !defined DB_DEBUG_BACKTRACE_NOTICE
#define DB_DEBUG_BACKTRACE_NOTICE false
#endif
#if !defined DB_DEBUG_BACKTRACE_WARNING
#define DB_DEBUG_BACKTRACE_WARNING false
#endif
#if !defined DB_DEBUG_BACKTRACE_ERROR
#define DB_DEBUG_BACKTRACE_ERROR false
#endif
#if !defined DB_DEBUG_BACKTRACE_DEBUG
#define DB_DEBUG_BACKTRACE_DEBUG false
#endif
#if !defined DB_LOG_TO_CHAT
#define DB_LOG_TO_CHAT false
#endif
// "Namespace"
#define DB:: DB_
// Fix some natives ("const" keyword was missing)
native DB:db_open@(const szName[]) = db_open;
native DBResult:db_query@(DB:db, const szQuery[]) = db_query;
native db_get_field@(DBResult:dbresult, field, result[], maxlength) = db_get_field;
native db_get_field_assoc@(DBResult:dbresult, const field[], result[], maxlength) = db_get_field_assoc;
native db_close@(DB:db) = db_close;
native db_free_result@(DBResult:dbrResult) = db_free_result;
#define db_open db_open@
#define db_query%1( db_query_hook(_,
#define db_close db_close_hook
#define db_free_result db_free_result_hook
#if DB::USE_WHIRLPOOL
native DB::WP_Hash(buffer[], len, const str[]) = WP_Hash;
#endif
enum DB::e_SYNCHRONOUS_MODE {
DB::SYNCHRONOUS_OFF,
DB::SYNCHRONOUS_NORMAL,
DB::SYNCHRONOUS_FULL
};
enum DBDataType: {
DB::TYPE_NONE,
DB::TYPE_NULL,
DB::TYPE_INT,
DB::TYPE_INTEGER = DB::TYPE_INT,
DB::TYPE_UINT,
DB::TYPE_UINTEGER = DB::TYPE_UINT,
DB::TYPE_FLOAT,
DB::TYPE_STRING,
DB::TYPE_RAW_STRING,
DB::TYPE_IDENTIFIER,
// Special types
#if DB::USE_WHIRLPOOL
DB::TYPE_WP_HASH,
#endif
DB::TYPE_PLAYER_NAME,
DB::TYPE_PLAYER_IP,
DB::TYPE_ARRAY
};
#define INT: DB::TYPE_INT,QQPA:
#define INTEGER: DB::TYPE_INT,QQPA:
#define UINT: DB::TYPE_UINT,QQPA:
#define UINTEGER: DB::TYPE_UINT,QQPA:
#define FLOAT: DB::TYPE_FLOAT,QQPA:
#define STRING: DB::TYPE_STRING,QQPA:
#define RAW_STRING: DB::TYPE_RAW_STRING,QQPA:
#define IDENTIFIER: DB::TYPE_IDENTIFIER,QQPA:
#if DB::USE_WHIRLPOOL
#define WP_HASH: DB::TYPE_WP_HASH,QQPA:
#endif
#define PLAYER_NAME: DB::TYPE_PLAYER_NAME,QQPA:
#define PLAYER_IP: DB::TYPE_PLAYER_IP,QQPA:
enum DB::E_STATEMENT {
// The ready-to-run query.
e_szQuery[DB::MAX_STATEMENT_SIZE + 1],
// Parameter count
e_iParams,
// The parameter types.
DBDataType:e_aiParamTypes[DB::MAX_PARAMS],
// Position of parameters in the query string.
e_aiParamPositions[DB::MAX_PARAMS],
// Length of parameters in the query string.
e_aiParamLengths[DB::MAX_PARAMS],
// Types of bound return fields
DBDataType:e_aiFieldTypes[DB::MAX_FIELDS],
// Sizes of bound result fields (used only for strings currently)
e_aiFieldSizes[DB::MAX_FIELDS],
// Addresses of bound result fields
e_aiFieldAddresses[DB::MAX_FIELDS],
// The database it was created for
DB:e_dbDatabase,
// The result (after executing)
DBResult:e_dbrResult,
// How many rows were fetched from the most recent result
e_iFetchedRows,
// Whether or not any leftover results should be automatically freed
// Note that whenever a new result is put into e_dbrResult, the previous one is freed.
bool:e_bAutoFreeResult
};
enum {
SQLITE_LIMIT_LENGTH,
SQLITE_LIMIT_SQL_LENGTH,
SQLITE_LIMIT_COLUMN,
SQLITE_LIMIT_EXPR_DEPTH,
SQLITE_LIMIT_COMPOUND_SELECT,
SQLITE_LIMIT_VDBE_OP,
SQLITE_LIMIT_FUNCTION_ARG,
SQLITE_LIMIT_ATTACHED,
SQLITE_LIMIT_LIKE_PATTERN_LEN,
SQLITE_LIMIT_VARIABLE_NUMBER,
SQLITE_LIMIT_TRIGGER_DEPTH
};
// SQLite 3 C-struct offsets
enum e_SQLITE3 {
sqlite3_pVfs [4],
sqlite3_iBackends [4],
sqlite3_pBackends [4],
sqlite3_iFlags [4],
sqlite3_iOpenFlags [4],
sqlite3_iErrorCode [4],
sqlite3_iErrorMask [4],
bool:sqlite3_bAutoCommit [1],
sqlite3_iTempStore [1],
bool:sqlite3_bMallocFailed [1],
sqlite3_iDefaultLockMode [1],
sqlite3_iNextAutovac [1],
bool:sqlite3_bSuppressErrors [1],
sqlite3_iPad [2],
sqlite3_iNextPagesize [4],
sqlite3_iNumTables [4],
sqlite3_pDefaultCollation [4],
sqlite3_iLastRowid [4],
sqlite3_iLastRowidUpperBytes[4],
sqlite3_iMagic [4],
sqlite3_iNumChanges [4],
sqlite3_iNumTotalChanges [4],
sqlite3_aiLimits [SQLITE_LIMIT_TRIGGER_DEPTH * 4],
sqlite3_aInitInfo [12],
sqlite3_iNumExtensions [4],
sqlite3_pExtensions [4],
sqlite3_pVdbe [4],
sqlite3_iActiveVdbeCount [4],
sqlite3_iWritingVdbeCount [4],
sqlite3_pTraceFunc [4],
sqlite3_pTraceArg [4],
sqlite3_pProfilingFunc [4],
sqlite3_pProfilingArg [4],
sqlite3_pCommitArg [4],
sqlite3_pCommitCallback [4],
sqlite3_pRollbackArg [4],
sqlite3_pRollbackCallback [4],
sqlite3_pUpdateArg [4],
sqlite3_pUpdateCallback [4],
sqlite3_pWalCallback [4],
sqlite3_pWalArg [4],
sqlite3_pCollNeeded [4],
sqlite3_pCollNeeded16 [4],
sqlite3_pCollNeededArg [4],
sqlite3_pError [4],
sqlite3_pErrorMsg [4],
sqlite3_pErrorMsg16 [4]
};
enum DB::E_PERSISTENT_DB {
e_szName[128 char],
bool:e_bIsUsed,
DB:e_dbDatabase
};
static stock
gs_szBuffer[8192],
gs_aiCompressBuffer[3072],
gs_Statements[DBStatement:DB::MAX_STATEMENTS][DB::E_STATEMENT],
gs_iAutoFreeTimer = -1,
gs_iAutoFreeResultsIndex = 0,
DBResult:gs_adbrAutoFreeResults[1024],
gs_iAutoCloseStatementsIndex = 0,
DBStatement:gs_astAutoCloseStatements[1024],
gs_PersistentDatabases[DB::MAX_PERSISTENT_DATABASES][DB::E_PERSISTENT_DB],
gs_iClosePersistentTimer = -1,
gs_iFreeStatementResultsTimer = -1,
gs_szNull[1] = {0}
;
const
DBStatement:DB::INVALID_STATEMENT = DBStatement:-1,
DBResult:DB::INVALID_RESULT = DBResult:0
;
#if !DB_DEBUG
#define DB_Debug(%1)%0;
#endif
#if !DB_LOG_TO_CHAT
#if DB_DEBUG_BACKTRACE_NOTICE
#define DB_Notice(%1) print(!"SQLitei Notice: " %1),PrintAmxBacktrace()
#define DB_Noticef(%1) printf("SQLitei Notice: " %1),PrintAmxBacktrace()
#else
#define DB_Notice(%1) print(!"SQLitei Notice: " %1)
#define DB_Noticef(%1) printf("SQLitei Notice: " %1)
#endif
#if DB_DEBUG_BACKTRACE_WARNING
#define DB_Warning(%1) print(!"SQLitei Warning: " %1),PrintAmxBacktrace()
#define DB_Warningf(%1) printf("SQLitei Warning: " %1),PrintAmxBacktrace()
#else
#define DB_Warning(%1) print(!"SQLitei Warning: " %1)
#define DB_Warningf(%1) printf("SQLitei Warning: " %1)
#endif
#if DB_DEBUG_BACKTRACE_ERROR
#define DB_Error(%1) print(!"SQLitei Error: " %1),PrintAmxBacktrace()
#define DB_Errorf(%1) printf("SQLitei Error: " %1),PrintAmxBacktrace()
#else
#define DB_Error(%1) print(!"SQLitei Error: " %1)
#define DB_Errorf(%1) printf("SQLitei Error: " %1)
#endif
#if DB_DEBUG
#if DB_DEBUG_BACKTRACE_DEBUG
#define DB_Debug(%1) printf("SQLitei Debug: " %1),PrintAmxBacktrace()
#else
#define DB_Debug(%1) printf("SQLitei Debug: " %1)
#endif
#endif
#else
new
gs_szLogMessageBuffer[256]
;
#define DB_Notice(%1) SendClientMessageToAll(0xFFFFFFFF, "SQLitei Notice: " %1), print(!"SQLitei Notice: " %1)
#define DB_Warning(%1) SendClientMessageToAll(0xEBBD17FF, "SQLitei Warning: " %1), print(!"SQLitei Warning: " %1)
#define DB_Error(%1) SendClientMessageToAll(0xCC0000FF, "SQLitei Error: " %1), print(!"SQLitei Error: " %1)
#define DB_Noticef(%1) format(gs_szLogMessageBuffer, sizeof(gs_szLogMessageBuffer), "SQLitei Notice: " %1), print(gs_szLogMessageBuffer), SendClientMessageToAll(0xDDDDDDFF, gs_szLogMessageBuffer)
#define DB_Warningf(%1) format(gs_szLogMessageBuffer, sizeof(gs_szLogMessageBuffer), "SQLitei Warning: " %1), print(gs_szLogMessageBuffer), SendClientMessageToAll(0xEBBD17FF, gs_szLogMessageBuffer)
#define DB_Errorf(%1) format(gs_szLogMessageBuffer, sizeof(gs_szLogMessageBuffer), "SQLitei Error: " %1), print(gs_szLogMessageBuffer), SendClientMessageToAll(0xCC0000FF, gs_szLogMessageBuffer)
#if DB_DEBUG
#define DB_Debug(%1) format(gs_szLogMessageBuffer, sizeof(gs_szLogMessageBuffer), "SQLitei Debug: " %1), print(gs_szLogMessageBuffer), SendClientMessageToAll(0xFFFFFFFF, gs_szLogMessageBuffer)
#endif
#endif
// Has to be defined after statement functions.
forward DBResult:db_query_hook(iTagOf3 = tagof(_bAutoRelease), DB:db, const szQuery[], {bool, DBDataType}:_bAutoRelease = true, {DBDataType, QQPA}:...);
// forward's
forward bool:db_set_row_index(DBResult:dbrResult, iRow);
forward bool:db_free_result_hook(DBResult:dbrResult);
forward bool:db_set_synchronous(DB:db, DB::e_SYNCHRONOUS_MODE:iValue);
forward DB::funcinc();
public DB::funcinc() {
strcat(gs_szBuffer, "");
strpack(gs_szBuffer, "");
ispacked(gs_szBuffer);
db_get_field(DBResult:0, 0, gs_szBuffer, 0);
db_query(DB:0,"");
}
static stock DB::CompressArray(const aiArray[], iSize = sizeof(aiArray), aiOutput[]) {
new
iOutputIndex = 4,
iValue,
iMSB,
iShift
;
// * 0b11000000 = Single byte, negative
// * 0b10000000 = Single byte
// * 0b01000000 = Multi-byte
// - 0b01000000 = More bytes
// - 0b11000000 = Last byte
// - 0b10000000 = Unused
for (new i = 0; i < iSize; i++) {
// Will the value fit in one byte?
iValue = aiArray[i];
if (-0b00111111 <= iValue <= 0b00111111) {
// Is the value negative?
if (iValue & 0x80000000) {
// Set the "single byte, negative" bits on and put the value without its sign
aiOutput{iOutputIndex++} = 0b11000000 | -iValue;
} else {
// Just put the value in with the "single byte" bit
aiOutput{iOutputIndex++} = 0b10000000 | iValue;
}
} else {
// Figure out how many bits we'll have to write
iMSB = DB::FindMSB(iValue) + 1;
// Make iShift a multiple of 6 (if it isn't already)
if ((iShift = iMSB % 6))
aiOutput{iOutputIndex++} = 0b01000000 | (iValue >>> (iMSB - iShift) & ~(0xFFFFFFFF << iShift));
iShift = iMSB - iShift;
// Write bits out left-right
while ((iShift -= 6) >= 0)
aiOutput{iOutputIndex++} = 0b01000000 | (iValue >>> iShift & 0b00111111);
// Change the "more bytes" bits into "last byte"
aiOutput{iOutputIndex - 1} |= 0b11000000;
}
}
// Put the number of bytes we just wrote into the first cell of the output
aiOutput[0] = 0x80808080 | ((iOutputIndex & 0x1FE00000) << 3) | ((iOutputIndex & 0x3FC000) << 2) | ((iOutputIndex & 0x7F80) << 1) | (iOutputIndex & 0x7F);
// Make sure the bytes in the last cell are 0
aiOutput{iOutputIndex} = 0;
iValue = iOutputIndex;
while (++iOutputIndex % 4)
aiOutput{iOutputIndex} = 0;
// Return the number of bytes written (not counting the first 4)
return iValue;
}
static stock DB::DecompressArray(const aiCompressedArray[], aiOutput[], iOutputSize = sizeof(aiOutput)) {
new
iBytes,
iOutputIndex = 0
;
// Get the number of bytes to parse
iBytes = aiCompressedArray[0];
iBytes = ((iBytes & 0x7F000000) >>> 3) | ((iBytes & 0x7F0000) >>> 2) | ((iBytes & 0x7F00) >>> 1) | (iBytes & 0x7F);
for (new i = 4; i < iBytes; i++) {
// Out of slots?
if (iOutputIndex >= iOutputSize) {
DB::Error("(DB::DecompressArray) Compressed array is larger than decompress buffer.");
break;
}
// Single byte?
if ((aiCompressedArray{i} & 0b10000000)) {
// Negative?
if ((aiCompressedArray{i} & 0b01000000))
aiOutput[iOutputIndex++] = -(aiCompressedArray{i} & 0b00111111);
else
aiOutput[iOutputIndex++] = (aiCompressedArray{i} & 0b00111111);
} else {
// Multi byte; read the last bits
aiOutput[iOutputIndex] = aiCompressedArray{i} & 0b00111111;
// Keep reading bits while shifting the value to the left
do {
aiOutput[iOutputIndex] <<= 6;
aiOutput[iOutputIndex] |= aiCompressedArray{++i} & 0b00111111;
} while ((aiCompressedArray{i} & 0b10000000) == 0);
iOutputIndex++;
}
}
return iOutputIndex;
}
static stock DB::memset(aArray[], iValue, iSize = sizeof(aArray)) {
new
iAddress
;
// Store the address of the array
#emit LOAD.S.pri 12
#emit STOR.S.pri iAddress
// Convert the size from cells to bytes
iSize *= 4;
// Loop until there is nothing more to fill
while (iSize > 0) {
// I have to do this because the FILL instruction doesn't accept a dynamic number.
if (iSize >= 4096) {
#emit LOAD.S.alt iAddress
#emit LOAD.S.pri iValue
#emit FILL 4096
iSize -= 4096;
iAddress += 4096;
} else if (iSize >= 1024) {
#emit LOAD.S.alt iAddress
#emit LOAD.S.pri iValue
#emit FILL 1024
iSize -= 1024;
iAddress += 1024;
} else if (iSize >= 256) {
#emit LOAD.S.alt iAddress
#emit LOAD.S.pri iValue
#emit FILL 256
iSize -= 256;
iAddress += 256;
} else if (iSize >= 64) {
#emit LOAD.S.alt iAddress
#emit LOAD.S.pri iValue
#emit FILL 64
iSize -= 64;
iAddress += 64;
} else if (iSize >= 16) {
#emit LOAD.S.alt iAddress
#emit LOAD.S.pri iValue
#emit FILL 16
iSize -= 16;
iAddress += 16;
} else {
#emit LOAD.S.alt iAddress
#emit LOAD.S.pri iValue
#emit FILL 4
iSize -= 4;
iAddress += 4;
}
}
// aArray is used, just not by its symbol name
#pragma unused aArray
return 1;
}
stock DB::LazyInitialize() {
static
bool:bIsInitialized = false
;
if (bIsInitialized)
return;
bIsInitialized = true;
}
stock db_escape_string(szString[], const szEnclosing[] = "'", iSize = sizeof(szString)) {
DB::LazyInitialize();
new
iPos
;
while (-1 != (iPos = strfind(szString, szEnclosing, _, iPos))) {
strins(szString, szEnclosing, iPos, iSize);
iPos += 2;
}
}
stock bool:db_is_persistent(DB:db) {
return !!(_:db & 0x80000000);
}
stock bool:db_is_valid_persistent(DB:db) {
new
iIndex = (_:db & 0x7FFFFFFF)
;
if ((0 <= iIndex < sizeof(gs_PersistentDatabases)) && gs_PersistentDatabases[iIndex][e_bIsUsed])
return true;
return false;
}
stock bool:db_is_table_exists(DB:db, const szTable[])
{
new
DBResult:dbrResult
;
format(gs_szBuffer, sizeof(gs_szBuffer), "SELECT name FROM sqlite_master WHERE type = 'table' AND tbl_name = '%s'", szTable);
dbrResult = db_query(db, gs_szBuffer, false);
if (db_num_fields(dbrResult)) {
db_free_result(dbrResult);
return true;
}
db_free_result(dbrResult);
return false;
}
stock bool:db_rewind(DBResult:dbrResult) {
if (dbrResult == DB::INVALID_RESULT) {
DB::Notice("(db_rewind) Invalid result given.");
return false;
}
return db_set_row_index(dbrResult, 0);
}
stock bool:db_exec(DB:db, const szQuery[]) {
new
DBResult:dbrResult = db_query(db, szQuery, false)
;
if (dbrResult) {
db_free_result(dbrResult);
return true;
}
return false;
}
stock db_insert(DB:db, const szQuery[]) {
new
DBResult:dbrResult = db_query(db, szQuery, false)
;
if (dbrResult) {
db_free_result(dbrResult);
return db_last_insert_rowid(db);
}
return 0;
}
stock db_get_struct_info(DB:db, {_, e_SQLITE3}:iOffset) {
if (db_is_persistent(db)) {
if (!db_is_valid_persistent(db)) {
DB::Errorf("(db_get_struct_info) Invalid persistent database given (%04x%04x).", _:db >>> 16, _:db & 0xFFFF);
return 0;
}
new iIndex = (_:db & 0x7FFFFFFF);
db = gs_PersistentDatabases[iIndex][e_dbDatabase];
if (!db) {
DB::Errorf("(db_get_struct_info) Closed persistent database given (%04x%04x).", _:db >>> 16, _:db & 0xFFFF);
return 0;
}
}
new
iAddress = db_get_mem_handle(db & DB:0x7FFFFFFF) - DB::GetAmxBaseRelative() + iOffset,
iValue
;
#emit LREF.S.pri iAddress
#emit STOR.S.pri iValue
return iValue;
}
stock db_set_struct_info(DB:db, {_, e_SQLITE3}:iOffset, iValue) {
if (db_is_persistent(db)) {
if (!db_is_valid_persistent(db)) {
DB::Errorf("(db_set_struct_info) Invalid persistent database given (%04x%04x).", _:db >>> 16, _:db & 0xFFFF);
return 0;
}
new iIndex = (_:db & 0x7FFFFFFF);
db = gs_PersistentDatabases[iIndex][e_dbDatabase];
if (!db) {
DB::Errorf("(db_set_struct_info) Closed persistent database given (%04x%04x).", _:db >>> 16, _:db & 0xFFFF);
return 0;
}
}
new
iAddress = db_get_mem_handle(db & DB:0x7FFFFFFF) - DB::GetAmxBaseRelative() + iOffset
;
#emit LOAD.S.pri iValue
#emit SREF.S.pri iAddress
}
stock bool:db_set_row_index(DBResult:dbrResult, iRow) {
if (dbrResult == DB::INVALID_RESULT) {
DB::Notice("(db_set_row_index) Invalid result given.");
return false;
}
if (iRow < 0 || iRow >= db_num_rows(dbrResult))
return false;
new
iAddress = db_get_result_mem_handle(dbrResult) - DB::GetAmxBaseRelative() + 16
;
#emit LOAD.S.pri iRow
#emit SREF.S.pri iAddress
return true;
}
stock db_get_row_index(DBResult:dbrResult) {
if (dbrResult == DB::INVALID_RESULT) {
DB::Notice("(db_get_row_index) Invalid result given.");
return 0;
}
new
iAddress = db_get_result_mem_handle(dbrResult) - DB::GetAmxBaseRelative() + 16
;
#emit LREF.S.pri iAddress
#emit STACK 4
#emit RETN
return 0;
}
stock DB:db_open_persistent(const szName[]) {
new
DB:db,
iIndex = -1
;
for (new i = 0; i < sizeof(gs_PersistentDatabases); i++) {
if (!gs_PersistentDatabases[i][e_bIsUsed]) {
iIndex = i;
break;
}
}
if (iIndex == -1) {
DB::Error("(db_open_persistent) Unable to find a free slot.");
return DB:-1;
}
if (!(db = db_open(szName))) {
DB::Error("(db_open_persistent) Unable to open the database.");
return DB:-1;
}
gs_PersistentDatabases[iIndex][e_bIsUsed] = true;
gs_PersistentDatabases[iIndex][e_dbDatabase] = db;
gs_PersistentDatabases[iIndex][e_szName][0] = 0;
if (gs_iClosePersistentTimer == -1)
gs_iClosePersistentTimer = SetTimer("db_close_persistent", 0, false);
strpack(gs_PersistentDatabases[iIndex][e_szName], szName, _:e_bIsUsed);
DB::Debug("(db_open_persistent=%d) Opened new persistent DB.", iIndex);
return DB:(iIndex | 0x80000000);
}
stock db_close_hook(DB:db) {
new
iIndex
;
if (db_is_persistent(db)) {
if (!db_is_valid_persistent(db)) {
DB::Errorf("(db_close) Invalid persistent database given (%04x%04x).", _:db >>> 16, _:db & 0xFFFF);
return;
}
iIndex = (_:db & 0x7FFFFFFF);
if (gs_PersistentDatabases[iIndex][e_dbDatabase]) {
db_close@(gs_PersistentDatabases[iIndex][e_dbDatabase]);
gs_PersistentDatabases[iIndex][e_dbDatabase] = DB:0;
DB::Debug("(db_close) Closed the DB for the persistent DB with index %d.", iIndex);
} else {
DB::Debug("(db_close) Would close the DB for the persistent DB with index %d, but it already is.", iIndex);
}
} else {
db_close@(db);
}
}
stock db_query_int(DB:db, const szQuery[], iField = 0) {
new
DBResult:dbrResult = db_query(db, szQuery, false)
;
if (!dbrResult) {
strunpack(gs_szBuffer, szQuery);
DB::Warningf("(db_query_int) Query failed: \"%s\".", gs_szBuffer);
return 0;
}
db_get_field(dbrResult, iField, gs_szBuffer, sizeof(gs_szBuffer) - 1);
db_free_result(dbrResult);
return strval(gs_szBuffer);
}
stock Float:db_query_float(DB:db, const szQuery[], iField = 0) {
new
DBResult:dbrResult = db_query(db, szQuery, false)
;
if (!dbrResult) {
strunpack(gs_szBuffer, szQuery);
DB::Warningf("(db_query_float) Query failed: \"%s\".", gs_szBuffer);
return 0.0;
}
db_get_field(dbrResult, iField, gs_szBuffer, sizeof(gs_szBuffer) - 1);
db_free_result(dbrResult);
return floatstr(gs_szBuffer);
}
stock db_is_result_freed(DBResult:dbrResult) {
if (dbrResult == DB::INVALID_RESULT) {
DB::Notice("(db_is_result_freed) Invalid result given.");
return true;
}
return db_get_result_mem_handle(dbrResult) == 0;
}
stock bool:db_free_result_hook(DBResult:dbrResult) {
if (dbrResult == DB::INVALID_RESULT) {
DB::Notice("(db_free_result_hook) Invalid result given.");
return false;
}
DB::Debug("(db_free_result) Freeing 0x%04x%04x.", _:dbrResult >>> 16, _:dbrResult & 0xFFFF);
for (new i = gs_iAutoFreeResultsIndex; i--; ) {
if (gs_adbrAutoFreeResults[i] == dbrResult) {
gs_adbrAutoFreeResults[i] = DBResult:0;
DB::Debug("(db_free_result) The result being freed was inside the autorelease pool.");
}
}
new
iFreeTestAddress = db_get_result_mem_handle(dbrResult) - DB::GetAmxBaseRelative() + 16,
iData
;
#emit LREF.S.pri iFreeTestAddress
#emit STOR.S.pri iData
if (iData != 0xFFFFFFFF) {
new
iResultAddress = db_get_result_mem_handle(dbrResult) - DB::GetAmxBaseRelative(),
iAddress,
iRows,
iCols,
iDataAddress,
iOffset,
iNullAddress
;
#emit CONST.pri gs_szNull
#emit STOR.S.pri iNullAddress
iNullAddress += DB::GetAmxBaseRelative();
iAddress = iResultAddress;
#emit LREF.S.pri iAddress
#emit STOR.S.pri iRows
iAddress += 4;
#emit LREF.S.pri iAddress
#emit STOR.S.pri iCols
iAddress += 4;
#emit LREF.S.pri iAddress
#emit STOR.S.pri iDataAddress
iDataAddress -= DB::GetAmxBaseRelative();
iOffset = (iCols + iRows * iCols) * 4 - 4;
while (iOffset >= 0) {
iAddress = iDataAddress + iOffset;
#emit LREF.S.pri iAddress
#emit STOR.S.pri iAddress
if (iAddress == iNullAddress) {
iAddress = iDataAddress + iOffset;