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DependentExtensions/PostgreSQLInterface/PostgreSQLInterface.h Normal file
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/*
* Original work: Copyright (c) 2014, Oculus VR, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* RakNet License.txt file in the licenses directory of this source tree. An additional grant
* of patent rights can be found in the RakNet Patents.txt file in the same directory.
*
*
* Modified work: Copyright (c) 2017, SLikeSoft UG (haftungsbeschränkt)
*
* This source code was modified by SLikeSoft. Modifications are licensed under the MIT-style
* license found in the license.txt file in the root directory of this source tree.
*/
#ifndef __POSTGRESQL_INTERFACE_H
#define __POSTGRESQL_INTERFACE_H
struct pg_conn;
typedef struct pg_conn PGconn;
struct pg_result;
typedef struct pg_result PGresult;
#include "slikenet/string.h"
#include "slikenet/DS_OrderedList.h"
class PostgreSQLInterface
{
public:
PostgreSQLInterface();
virtual ~PostgreSQLInterface();
/// Connect to the database using the connection string
/// \param[in] conninfo See the postgre docs
/// \return True on success, false on failure.
bool Connect(const char *conninfo);
/// Use a connection allocated elsewehre
void AssignConnection(PGconn *_pgConn);
/// Get the instance of PGconn
PGconn *GetPGConn(void) const;
/// Disconnect from the database
void Disconnect(void);
/// If any of the above functions fail, the error string is stored internally. Call this to get it.
virtual const char *GetLastError(void) const;
// Returns DEFAULT EXTRACT(EPOCH FROM current_timestamp))
long long GetEpoch(void);
// Returns a string containing LOCALTIMESTAMP on the server
char *GetLocalTimestamp(void);
static bool PQGetValueFromBinary(int *output, PGresult *result, unsigned int rowIndex, const char *columnName);
static bool PQGetValueFromBinary(int *output, PGresult *result, int rowIndex, const char *columnName);
static bool PQGetValueFromBinary(unsigned int *output, PGresult *result, int rowIndex, const char *columnName);
static bool PQGetValueFromBinary(long long *output, PGresult *result, int rowIndex, const char *columnName);
static bool PQGetValueFromBinary(float *output, PGresult *result, int rowIndex, const char *columnName);
static bool PQGetValueFromBinary(double *output, PGresult *result, int rowIndex, const char *columnName);
static bool PQGetValueFromBinary(bool *output, PGresult *result, int rowIndex, const char *columnName);
static bool PQGetValueFromBinary(SLNet::RakString *output, PGresult *result, int rowIndex, const char *columnName);
static bool PQGetValueFromBinary(char **output, unsigned int *outputLength, PGresult *result, int rowIndex, const char *columnName);
static bool PQGetValueFromBinary(char **output, int *outputLength, PGresult *result, int rowIndex, const char *columnName);
static void EncodeQueryInput(const char *colName, unsigned int value, SLNet::RakString &paramTypeStr, SLNet::RakString &valueStr, int &numParams, char **paramData, int *paramLength, int *paramFormat);
static void EncodeQueryInput(const char *colName, bool value, SLNet::RakString &paramTypeStr, SLNet::RakString &valueStr, int &numParams, char **paramData, int *paramLength, int *paramFormat);
static void EncodeQueryInput(const char *colName, int value, SLNet::RakString &paramTypeStr, SLNet::RakString &valueStr, int &numParams, char **paramData, int *paramLength, int *paramFormat);
static void EncodeQueryInput(const char *colName, float value, SLNet::RakString &paramTypeStr, SLNet::RakString &valueStr, int &numParams, char **paramData, int *paramLength, int *paramFormat);
static void EncodeQueryInput(const char *colName, char *binaryData, int binaryDataLength, SLNet::RakString &paramTypeStr, SLNet::RakString &valueStr, int &numParams, char **paramData, int *paramLength, int *paramFormat, bool writeEmpty);
static void EncodeQueryInput(const char *colName, const char *str, SLNet::RakString &paramTypeStr, SLNet::RakString &valueStr, int &numParams, char **paramData, int *paramLength, int *paramFormat, bool writeEmpty, const char *type = "text");
static void EncodeQueryInput(const char *colName, const SLNet::RakString &str, SLNet::RakString &paramTypeStr, SLNet::RakString &valueStr, int &numParams, char **paramData, int *paramLength, int *paramFormat, bool writeEmpty, const char *type = "text");
static void EncodeQueryUpdate(const char *colName, unsigned int value, SLNet::RakString &valueStr, int &numParams, char **paramData, int *paramLength, int *paramFormat);
static void EncodeQueryUpdate(const char *colName, int value, SLNet::RakString &valueStr, int &numParams, char **paramData, int *paramLength, int *paramFormat);
static void EncodeQueryUpdate(const char *colName, float value, SLNet::RakString &valueStr, int &numParams, char **paramData, int *paramLength, int *paramFormat);
static void EncodeQueryUpdate(const char *colName, char *binaryData, int binaryDataLength, SLNet::RakString &valueStr, int &numParams, char **paramData, int *paramLength, int *paramFormat);
static void EncodeQueryUpdate(const char *colName, const char *str, SLNet::RakString &valueStr, int &numParams, char **paramData, int *paramLength, int *paramFormat, const char *type = "text");
static void EncodeQueryUpdate(const char *colName, const SLNet::RakString &str, SLNet::RakString &valueStr, int &numParams, char **paramData, int *paramLength, int *paramFormat, const char *type = "text");
// Standard query
PGresult * QueryVariadic( const char *input, ... );
static void ClearResult(PGresult *result);
// Pass queries to the server
bool ExecuteBlockingCommand(const char *command, PGresult **result, bool rollbackOnFailure);
bool IsResultSuccessful(PGresult *result, bool rollbackOnFailure);
void Rollback(void);
static void EndianSwapInPlace(char* data, int dataLength);
SLNet::RakString GetEscapedString(const char *input) const;
protected:
PGconn *pgConn;
bool pgConnAllocatedHere;
bool isConnected;
char lastError[1024];
// Connection parameters
SLNet::RakString _conninfo;
// DataStructures::List<SLNet::RakString> preparedStatements;
DataStructures::List<SLNet::RakString> preparedQueries;
};
#endif