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Diffstat (limited to '')
-rw-r--r-- | sem.go | 40 |
1 files changed, 40 insertions, 0 deletions
@@ -0,0 +1,40 @@ +/* + * Additional synchronization routines + * + * Copyright (C) 2024 Runxi Yu <https://runxiyu.org> + * SPDX-License-Identifier: AGPL-3.0-or-later + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <https://www.gnu.org/licenses/>. + */ + +package main + +type usemT struct { + _ch (chan struct{}) +} + +func (s *usemT) init() { + s._ch = make(chan struct{}, 1) +} + +func (s *usemT) set() { + select { + case s._ch <- struct{}{}: + default: + } +} + +func (s *usemT) ch() (<- chan struct{}) { + return s._ch +} |