public static collation_hook_info from_ptr(IntPtr p)
{
GCHandle h = (GCHandle)p;
collation_hook_info hi = h.Target as collation_hook_info;
return(hi);
}
internal static collation_hook_info from_ptr(IntPtr p)
{
GCHandle h = (GCHandle)p;
collation_hook_info hi = h.Target as collation_hook_info;
// TODO assert(hi._h == h)
return(hi);
}
int ISQLite3Provider.sqlite3_create_collation(IntPtr db, string name, object v, delegate_collation func)
{
if (_collation_hooks.ContainsKey(name))
{
collation_hook_info hi = _collation_hooks[name];
// TODO maybe turn off the hook here, for now
hi.free();
_collation_hooks.Remove(name);
}
GCHandle pinned = GCHandle.Alloc(util.to_utf8(name), GCHandleType.Pinned);
IntPtr ptr = pinned.AddrOfPinnedObject();
int rc;
// 1 is SQLITE_UTF8
if (func != null)
{
collation_hook_info hi = new collation_hook_info(func, v);
rc = SQLite3RuntimeProvider.sqlite3_create_collation(db.ToInt64(), ptr.ToInt64(), 1, hi.ptr.ToInt64(), Marshal.GetFunctionPointerForDelegate(new callback_collation(collation_hook_bridge)).ToInt64());
if (rc == 0)
{
_collation_hooks[name] = hi;
}
}
else
{
rc = SQLite3RuntimeProvider.sqlite3_create_collation(db.ToInt64(), ptr.ToInt64(), 1, IntPtr.Zero.ToInt64(), IntPtr.Zero.ToInt64());
}
pinned.Free();
return(rc);
}
int ISQLite3Provider.sqlite3_create_collation (IntPtr db, string name, object v, delegate_collation func)
{
var info = hooks.getOrCreateFor (db);
if (info.collation.ContainsKey (name)) {
collation_hook_info hi = info.collation [name];
// TODO maybe turn off the hook here, for now
hi.free ();
info.collation.Remove (name);
}
// 1 is SQLITE_UTF8
if (func != null) {
collation_hook_info hi = new collation_hook_info (func, v);
int rc = NativeMethods.sqlite3_create_collation (db, util.to_utf8 (name), 1, hi.ptr, collation_hook_bridge);
if (rc == 0) {
info.collation [name] = hi;
}
return rc;
} else {
return NativeMethods.sqlite3_create_collation (db, util.to_utf8 (name), 1, IntPtr.Zero, null);
}
}
static int collation_hook_bridge(IntPtr p, int len1, IntPtr pv1, int len2, IntPtr pv2)
{
collation_hook_info hi = collation_hook_info.from_ptr(p);
return(hi.call(util.from_utf8(pv1, len1), util.from_utf8(pv2, len2)));
}
int ISQLite3Provider.sqlite3_create_collation(IntPtr db, string name, object v, delegate_collation func)
{
var info = hooks.getOrCreateFor(db);
if (info.collation.ContainsKey(name))
{
collation_hook_info hi = info.collation[name];
// TODO maybe turn off the hook here, for now
hi.free();
info.collation.Remove(name);
}
GCHandle pinned = GCHandle.Alloc(util.to_utf8(name), GCHandleType.Pinned);
IntPtr ptr = pinned.AddrOfPinnedObject();
int rc;
// 1 is SQLITE_UTF8
if (func != null)
{
collation_hook_info hi = new collation_hook_info(func, v);
rc = SQLite3RuntimeProvider.sqlite3_create_collation(db.ToInt64(), ptr.ToInt64(), 1, hi.ptr.ToInt64(), Marshal.GetFunctionPointerForDelegate(collation_hook_bridge).ToInt64());
if (rc == 0)
{
info.collation[name] = hi;
}
}
else
{
rc = SQLite3RuntimeProvider.sqlite3_create_collation(db.ToInt64(), ptr.ToInt64(), 1, IntPtr.Zero.ToInt64(), IntPtr.Zero.ToInt64());
}
pinned.Free();
return rc;
}
