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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 07:24:22 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 07:24:22 +0000 |
commit | 45d6379135504814ab723b57f0eb8be23393a51d (patch) | |
tree | d4f2ec4acca824a8446387a758b0ce4238a4dffa /lib/isc/task_p.h | |
parent | Initial commit. (diff) | |
download | bind9-45d6379135504814ab723b57f0eb8be23393a51d.tar.xz bind9-45d6379135504814ab723b57f0eb8be23393a51d.zip |
Adding upstream version 1:9.16.44.upstream/1%9.16.44
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'lib/isc/task_p.h')
-rw-r--r-- | lib/isc/task_p.h | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/lib/isc/task_p.h b/lib/isc/task_p.h new file mode 100644 index 0000000..5fc50b0 --- /dev/null +++ b/lib/isc/task_p.h @@ -0,0 +1,106 @@ +/* + * Copyright (C) Internet Systems Consortium, Inc. ("ISC") + * + * SPDX-License-Identifier: MPL-2.0 + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, you can obtain one at https://mozilla.org/MPL/2.0/. + * + * See the COPYRIGHT file distributed with this work for additional + * information regarding copyright ownership. + */ + +#pragma once + +#include <isc/mem.h> +#include <isc/result.h> +#include <isc/task.h> + +isc_result_t +isc__taskmgr_create(isc_mem_t *mctx, unsigned int default_quantum, isc_nm_t *nm, + isc_taskmgr_t **managerp); +/*%< + * Create a new task manager. + * + * Notes: + * + *\li If 'default_quantum' is non-zero, then it will be used as the default + * quantum value when tasks are created. If zero, then an implementation + * defined default quantum will be used. + * + *\li If 'nm' is set then netmgr is paused when an exclusive task mode + * is requested. + * + * Requires: + * + *\li 'mctx' is a valid memory context. + * + *\li managerp != NULL && *managerp == NULL + * + * Ensures: + * + *\li On success, '*managerp' will be attached to the newly created task + * manager. + * + * Returns: + * + *\li #ISC_R_SUCCESS + *\li #ISC_R_NOMEMORY + *\li #ISC_R_NOTHREADS No threads could be created. + *\li #ISC_R_UNEXPECTED An unexpected error occurred. + *\li #ISC_R_SHUTTINGDOWN The non-threaded, shared, task + * manager shutting down. + */ + +void +isc__taskmgr_destroy(isc_taskmgr_t **managerp); +/*%< + * Destroy '*managerp'. + * + * Notes: + * + *\li Calling isc_taskmgr_destroy() will shutdown all tasks managed by + * *managerp that haven't already been shutdown. The call will block + * until all tasks have entered the done state. + * + *\li isc_taskmgr_destroy() must not be called by a task event action, + * because it would block forever waiting for the event action to + * complete. An event action that wants to cause task manager shutdown + * should request some non-event action thread of execution to do the + * shutdown, e.g. by signaling a condition variable or using + * isc_app_shutdown(). + * + *\li Task manager references are not reference counted, so the caller + * must ensure that no attempt will be made to use the manager after + * isc_taskmgr_destroy() returns. + * + * Requires: + * + *\li '*managerp' is a valid task manager. + * + *\li 'isc__taskmgr_shutdown()' and isc__netmgr_shutdown() have been + * called. + */ + +void +isc__taskmgr_shutdown(isc_taskmgr_t *manager); +/*%> + * Shutdown 'manager'. + * + * Notes: + * + *\li Calling isc__taskmgr_shutdown() will shut down all tasks managed by + * *managerp that haven't already been shut down. + * + * Requires: + * + *\li 'manager' is a valid task manager. + * + *\li isc_taskmgr_destroy() has not be called previously on '*managerp'. + * + * Ensures: + * + *\li All resources used by the task manager, and any tasks it managed, + * have been freed. + */ |