static void scalar_function_hook_bridge(IntPtr context, int num_args, IntPtr argsptr)
{
IntPtr p = new IntPtr(SQLite3RuntimeProvider.sqlite3_user_data(context.ToInt64()));
scalar_function_hook_info hi = scalar_function_hook_info.from_ptr(p);
hi.call(context, num_args, argsptr);
}
internal static scalar_function_hook_info from_ptr(IntPtr p)
{
GCHandle h = (GCHandle)p;
scalar_function_hook_info hi = h.Target as scalar_function_hook_info;
// TODO assert(hi._h == h)
return(hi);
}
int ISQLite3Provider.sqlite3_create_function(IntPtr db, string name, int nargs, object v, delegate_function_scalar func)
{
string key = string.Format("{0}.{1}", nargs, name);
if (_scalar_functions.ContainsKey(key))
{
scalar_function_hook_info hi = _scalar_functions[key];
// TODO maybe turn off the hook here, for now
hi.free();
_scalar_functions.Remove(key);
}
GCHandle pinned = GCHandle.Alloc(util.to_utf8(name), GCHandleType.Pinned);
IntPtr ptr = pinned.AddrOfPinnedObject();
int rc;
// 1 is SQLITE_UTF8
if (func != null)
{
scalar_function_hook_info hi = new scalar_function_hook_info(func, v);
rc = SQLite3RuntimeProvider.sqlite3_create_function_v2(db.ToInt64(), ptr.ToInt64(), nargs, 1, hi.ptr.ToInt64(), Marshal.GetFunctionPointerForDelegate(new callback_scalar_function(scalar_function_hook_bridge)).ToInt64(), 0, 0, 0);
if (rc == 0)
{
_scalar_functions[key] = hi;
}
}
else
{
rc = SQLite3RuntimeProvider.sqlite3_create_function_v2(db.ToInt64(), ptr.ToInt64(), nargs, 1, 0, 0, 0, 0, 0);
}
pinned.Free();
return(rc);
}
int ISQLite3Provider.sqlite3_create_function (IntPtr db, string name, int nargs, object v, delegate_function_scalar func)
{
// the keys for this dictionary are nargs.name, not just the name
string key = string.Format ("{0}.{1}", nargs, name);
var info = hooks.getOrCreateFor (db);
if (info.scalar.ContainsKey (key)) {
scalar_function_hook_info hi = info.scalar [key];
// TODO maybe turn off the hook here, for now
hi.free ();
info.scalar.Remove (key);
}
// 1 is SQLITE_UTF8
if (func != null) {
scalar_function_hook_info hi = new scalar_function_hook_info (func, v);
int rc = NativeMethods.sqlite3_create_function_v2 (db, util.to_utf8 (name), nargs, 1, hi.ptr, scalar_function_hook_bridge, null, null, null);
if (rc == 0) {
info.scalar [key] = hi;
}
return rc;
} else {
return NativeMethods.sqlite3_create_function_v2 (db, util.to_utf8 (name), nargs, 1, IntPtr.Zero, null, null, null, null);
}
}
int ISQLite3Provider.sqlite3_create_function(IntPtr db, string name, int nargs, object v, delegate_function_scalar func)
{
string key = string.Format("{0}.{1}", nargs, name);
if (_scalar_functions.ContainsKey(key))
{
scalar_function_hook_info hi = _scalar_functions[key];
// TODO maybe turn off the hook here, for now
hi.free();
_scalar_functions.Remove(key);
}
// 1 is SQLITE_UTF8
if (func != null)
{
scalar_function_hook_info hi = new scalar_function_hook_info(func, v);
int rc = NativeMethods.sqlite3_create_function_v2(db, util.to_utf8(name), nargs, 1, hi.ptr, scalar_function_hook_bridge, null, null, null);
if (rc == 0)
{
_scalar_functions[key] = hi;
}
return rc;
}
else
{
return NativeMethods.sqlite3_create_function_v2(db, util.to_utf8(name), nargs, 1, IntPtr.Zero, null, null, null, null);
}
}
int ISQLite3Provider.sqlite3_create_function(IntPtr db, string name, int nargs, object v, delegate_function_scalar func)
{
// the keys for this dictionary are nargs.name, not just the name
string key = string.Format("{0}.{1}", nargs, name);
var info = hooks.getOrCreateFor(db);
if (info.scalar.ContainsKey(key))
{
scalar_function_hook_info hi = info.scalar[key];
// TODO maybe turn off the hook here, for now
hi.free();
info.scalar.Remove(key);
}
GCHandle pinned = GCHandle.Alloc(util.to_utf8(name), GCHandleType.Pinned);
IntPtr ptr = pinned.AddrOfPinnedObject();
int rc;
// 1 is SQLITE_UTF8
if (func != null)
{
scalar_function_hook_info hi = new scalar_function_hook_info(func, v);
rc = SQLite3RuntimeProvider.sqlite3_create_function_v2(db.ToInt64(), ptr.ToInt64(), nargs, 1, hi.ptr.ToInt64(), Marshal.GetFunctionPointerForDelegate(scalar_function_hook_bridge).ToInt64(), 0, 0, 0);
if (rc == 0)
{
info.scalar[key] = hi;
}
}
else
{
rc = SQLite3RuntimeProvider.sqlite3_create_function_v2(db.ToInt64(), ptr.ToInt64(), nargs, 1, 0, 0, 0, 0, 0);
}
pinned.Free();
return rc;
}