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f9745d8b52
This can be used implement a generic per thread impersonation for thread pools. Signed-off-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Ralph Boehme <slow@samba.org>
96 lines
3.0 KiB
C
96 lines
3.0 KiB
C
/*
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* Unix SMB/CIFS implementation.
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* threadpool implementation based on pthreads
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* Copyright (C) Volker Lendecke 2016
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __PTHREADPOOL_TEVENT_H__
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#define __PTHREADPOOL_TEVENT_H__
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#include <tevent.h>
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void pthreadpool_tevent_cleanup_orphaned_jobs(void);
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struct pthreadpool_tevent;
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int pthreadpool_tevent_init(TALLOC_CTX *mem_ctx, unsigned max_threads,
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struct pthreadpool_tevent **presult);
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struct pthreadpool_tevent_wrapper_ops {
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const char *name;
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bool (*before_job)(struct pthreadpool_tevent *wrap_tp,
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void *private_state,
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struct pthreadpool_tevent *main_tp,
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const char *location);
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bool (*after_job)(struct pthreadpool_tevent *wrap_tp,
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void *private_state,
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struct pthreadpool_tevent *main_tp,
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const char *location);
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};
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struct pthreadpool_tevent *_pthreadpool_tevent_wrapper_create(
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struct pthreadpool_tevent *main_tp,
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TALLOC_CTX *mem_ctx,
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const struct pthreadpool_tevent_wrapper_ops *ops,
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void *pstate,
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size_t psize,
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const char *type,
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const char *location);
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#define pthreadpool_tevent_wrapper_create(main_tp, mem_ctx, ops, state, type) \
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_pthreadpool_tevent_wrapper_create(main_tp, mem_ctx, ops, \
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state, sizeof(type), #type, __location__)
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/*
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* this can only be called directly after
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* pthreadpool_tevent_wrapper_create()
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*/
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void pthreadpool_tevent_force_per_thread_cwd(struct pthreadpool_tevent *pool,
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const void *private_state);
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size_t pthreadpool_tevent_max_threads(struct pthreadpool_tevent *pool);
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size_t pthreadpool_tevent_queued_jobs(struct pthreadpool_tevent *pool);
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bool pthreadpool_tevent_per_thread_cwd(struct pthreadpool_tevent *pool);
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/*
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* return true - if tevent_req_cancel() was called.
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*/
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bool pthreadpool_tevent_current_job_canceled(void);
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/*
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* return true - if talloc_free() was called on the job request,
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* tevent_context or pthreadpool_tevent.
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*/
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bool pthreadpool_tevent_current_job_orphaned(void);
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/*
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* return true if canceled and orphaned are both false.
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*/
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bool pthreadpool_tevent_current_job_continue(void);
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/*
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* return true if the current job can rely on a per thread
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* current working directory.
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*/
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bool pthreadpool_tevent_current_job_per_thread_cwd(void);
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struct tevent_req *pthreadpool_tevent_job_send(
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TALLOC_CTX *mem_ctx, struct tevent_context *ev,
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struct pthreadpool_tevent *pool,
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void (*fn)(void *private_data), void *private_data);
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int pthreadpool_tevent_job_recv(struct tevent_req *req);
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#endif
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