Changes associated with SQLiteDLLConnect

Author: David-Maisonave

SQLiteDLLConnect.cpp

@@ -0,0 +1,107 @@
+#include <windows.h>
+#include "SQLiteDLLConnect.h"
+#include <cassert>
+#include <string>
+#include <system_error>
+
+
+namespace SQLite_DLL
+{
+	template<typename TProc>
+	inline bool GetProcAddressChecked(HINSTANCE hINSTANCE, const std::string& procName, TProc& typeFunc)
+	{
+		if (hINSTANCE == NULL)
+			return false;
+		PROC ret = GetProcAddress(hINSTANCE, procName.c_str());
+		if (!ret)
+			throw std::system_error(GetLastError(), std::system_category(), "GetProcAddress failed");
+		typeFunc = reinterpret_cast<TProc>(ret);
+		return true;
+	}
+	static HINSTANCE HinstanceSqliteDll = NULL;
+
+	typedef int (WINAPI* SQLITE3_CONFIG)(int, ...);
+	static SQLITE3_CONFIG SQLite3_config;
+
+	typedef char* (WINAPI* SQLITE3_MPRINTF)(const char*, ...);
+	static SQLITE3_MPRINTF SQLite3_mprintf;
+
+	typedef char* (WINAPI* SQLITE3_SNPRINTF)(int, char*, const char*, ...);
+	static SQLITE3_SNPRINTF SQLite3_snprintf;
+
+	typedef int (WINAPI* SQLITE3_DB_CONFIG)(sqlite3*, int op, ...);
+	static SQLITE3_DB_CONFIG SQLite3_db_config;
+
+	typedef void (WINAPI* SQLITE3_LOG)(int iErrCode, const char* zFormat, ...);
+	static SQLITE3_LOG SQLite3_log;
+
+	typedef int (WINAPI* SQLITE3_VTAB_CONFIG)(sqlite3*, int op, ...);
+	static SQLITE3_VTAB_CONFIG SQLite3_vtab_config;
+
+
+	RunTimeConnect::RunTimeConnect(std::string DllFileName)
+	{
+		HinstanceSqliteDll = LoadLibraryA(DllFileName.c_str());
+		assert(GetProcAddressChecked(HinstanceSqliteDll, "sqlite3_config", SQLite3_config));
+		assert(GetProcAddressChecked(HinstanceSqliteDll, "sqlite3_mprintf", SQLite3_mprintf));
+		assert(GetProcAddressChecked(HinstanceSqliteDll, "sqlite3_snprintf", SQLite3_snprintf));
+		assert(GetProcAddressChecked(HinstanceSqliteDll, "sqlite3_db_config", SQLite3_db_config));
+		assert(GetProcAddressChecked(HinstanceSqliteDll, "sqlite3_log", SQLite3_log));
+		assert(GetProcAddressChecked(HinstanceSqliteDll, "sqlite3_vtab_config", SQLite3_vtab_config));
+	}
+
+#pragma warning (disable : 4793)
+	int RunTimeConnect::sqlite3_config(int arg, ...)
+	{
+		va_list ap;
+		va_start(ap, arg);
+		int r = SQLite3_config(arg, ap);
+		va_end(ap);
+		return r;
+	}
+
+	char* RunTimeConnect::sqlite3_mprintf(const char* arg, ...)
+	{
+		va_list ap;
+		va_start(ap, arg);
+		char* r = SQLite3_mprintf(arg, ap);
+		va_end(ap);
+		return r;
+	}
+
+	char* RunTimeConnect::sqlite3_snprintf(int i, char* arg, const char* arg2, ...)
+	{
+		va_list ap;
+		va_start(ap, arg2);
+		char* r = SQLite3_snprintf(i, arg, arg2, ap);
+		va_end(ap);
+		return r;
+	}
+
+	int RunTimeConnect::sqlite3_db_config(sqlite3* db, int arg, ...)
+	{
+		va_list ap;
+		va_start(ap, arg);
+		int r = SQLite3_db_config(db, arg, ap);
+		va_end(ap);
+		return r;
+	}
+
+	void RunTimeConnect::sqlite3_log(int iErrCode, const char* arg, ...)
+	{
+		va_list ap;
+		va_start(ap, arg);
+		SQLite3_log(iErrCode, arg, ap);
+		va_end(ap);
+	}
+
+	int RunTimeConnect::sqlite3_vtab_config(sqlite3* db, int  arg, ...)
+	{
+		va_list ap;
+		va_start(ap, arg);
+		int r = SQLite3_vtab_config(db, arg, ap);
+		va_end(ap);
+		return r;
+	}
+
+}