diff options
Diffstat (limited to 'src/core')
-rw-r--r-- | src/core/async.c | 94 | ||||
-rw-r--r-- | src/core/async.h | 27 |
2 files changed, 0 insertions, 121 deletions
diff --git a/src/core/async.c b/src/core/async.c deleted file mode 100644 index 3876deda70..0000000000 --- a/src/core/async.c +++ /dev/null @@ -1,94 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2013 Lennart Poettering - - 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 <pthread.h> -#include <unistd.h> - -#include "async.h" -#include "log.h" -#include "util.h" - -int asynchronous_job(void* (*func)(void *p), void *arg) { - pthread_attr_t a; - pthread_t t; - int r; - - /* It kinda sucks that we have to resort to threads to - * implement an asynchronous sync(), but well, such is - * life. - * - * Note that issuing this command right before exiting a - * process will cause the process to wait for the sync() to - * complete. This function hence is nicely asynchronous really - * only in long running processes. */ - - r = pthread_attr_init(&a); - if (r != 0) - return -r; - - r = pthread_attr_setdetachstate(&a, PTHREAD_CREATE_DETACHED); - if (r != 0) { - r = -r; - goto finish; - } - - r = pthread_create(&t, &a, func, arg); - if (r != 0) { - r = -r; - goto finish; - } - -finish: - pthread_attr_destroy(&a); - return r; -} - -static void *sync_thread(void *p) { - sync(); - return NULL; -} - -int asynchronous_sync(void) { - log_debug("Spawning new thread for sync"); - - return asynchronous_job(sync_thread, NULL); -} - -static void *close_thread(void *p) { - safe_close(PTR_TO_INT(p)); - return NULL; -} - -int asynchronous_close(int fd) { - int r; - - /* This is supposed to behave similar to safe_close(), but - * actually invoke close() asynchronously, so that it will - * never block. Ideally the kernel would have an API for this, - * but it doesn't, so we work around it, and hide this as a - * far away as we can. */ - - r = asynchronous_job(close_thread, INT_TO_PTR(fd)); - if (r < 0) - safe_close(fd); - - return -1; -} diff --git a/src/core/async.h b/src/core/async.h deleted file mode 100644 index 7f1ef79532..0000000000 --- a/src/core/async.h +++ /dev/null @@ -1,27 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#pragma once - -/*** - This file is part of systemd. - - Copyright 2013 Lennart Poettering - - 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/>. -***/ - -int asynchronous_job(void* (*func)(void *p), void *arg); - -int asynchronous_sync(void); -int asynchronous_close(int fd); |