summaryrefslogtreecommitdiff
path: root/src/basic/barrier.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/basic/barrier.h')
-rw-r--r--src/basic/barrier.h91
1 files changed, 0 insertions, 91 deletions
diff --git a/src/basic/barrier.h b/src/basic/barrier.h
deleted file mode 100644
index 6347fddc4d..0000000000
--- a/src/basic/barrier.h
+++ /dev/null
@@ -1,91 +0,0 @@
-#pragma once
-
-/***
- This file is part of systemd.
-
- Copyright 2014 David Herrmann <dh.herrmann@gmail.com>
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd 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
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <stdbool.h>
-#include <stdint.h>
-#include <sys/types.h>
-
-#include "macro.h"
-
-/* See source file for an API description. */
-
-typedef struct Barrier Barrier;
-
-enum {
- BARRIER_SINGLE = 1LL,
- BARRIER_ABORTION = INT64_MAX,
-
- /* bias values to store state; keep @WE < @THEY < @I */
- BARRIER_BIAS = INT64_MIN,
- BARRIER_WE_ABORTED = BARRIER_BIAS + 1LL,
- BARRIER_THEY_ABORTED = BARRIER_BIAS + 2LL,
- BARRIER_I_ABORTED = BARRIER_BIAS + 3LL,
-};
-
-enum {
- BARRIER_PARENT,
- BARRIER_CHILD,
-};
-
-struct Barrier {
- int me;
- int them;
- int pipe[2];
- int64_t barriers;
-};
-
-#define BARRIER_NULL {-1, -1, {-1, -1}, 0}
-
-int barrier_create(Barrier *obj);
-void barrier_destroy(Barrier *b);
-
-DEFINE_TRIVIAL_CLEANUP_FUNC(Barrier*, barrier_destroy);
-
-void barrier_set_role(Barrier *b, unsigned int role);
-
-bool barrier_place(Barrier *b);
-bool barrier_abort(Barrier *b);
-
-bool barrier_wait_next(Barrier *b);
-bool barrier_wait_abortion(Barrier *b);
-bool barrier_sync_next(Barrier *b);
-bool barrier_sync(Barrier *b);
-
-static inline bool barrier_i_aborted(Barrier *b) {
- return b->barriers == BARRIER_I_ABORTED || b->barriers == BARRIER_WE_ABORTED;
-}
-
-static inline bool barrier_they_aborted(Barrier *b) {
- return b->barriers == BARRIER_THEY_ABORTED || b->barriers == BARRIER_WE_ABORTED;
-}
-
-static inline bool barrier_we_aborted(Barrier *b) {
- return b->barriers == BARRIER_WE_ABORTED;
-}
-
-static inline bool barrier_is_aborted(Barrier *b) {
- return b->barriers == BARRIER_I_ABORTED || b->barriers == BARRIER_THEY_ABORTED || b->barriers == BARRIER_WE_ABORTED;
-}
-
-static inline bool barrier_place_and_sync(Barrier *b) {
- (void) barrier_place(b);
- return barrier_sync(b);
-}