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samba-mirror/lib/util/smb_threads_internal.h
Derrell Lipman 088906b064 Make the thread functions a bit easier to use
- Create separate macros for lock and unlock so that it's easier to identify
  which request is being made.

- Initialize *ponce in the SMB_THREAD_ONCE macro in the non-thread-safe case,
  rather than requiring each init function to determine if it's in the
  non-thread-safe case and manually initialize.

Derrell
2009-05-13 14:37:28 -04:00

75 lines
2.4 KiB
C

/*
SMB/CIFS implementation.
SMB thread interface internal macros.
Copyright (C) Jeremy Allison, 2009.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _smb_threads_internal_h_
#define _smb_threads_internal_h_
#define SMB_THREAD_CREATE_MUTEX(name, lockvar) \
(global_tfp ? global_tfp->create_mutex((name), &(lockvar), __location__) : 0)
#define SMB_THREAD_DESTROY_MUTEX(plock) \
do { \
if (global_tfp) { \
global_tfp->destroy_mutex(plock, __location__); \
}; \
} while (0)
#define SMB_THREAD_LOCK_INTERNAL(plock, type, location) \
(global_tfp ? global_tfp->lock_mutex((plock), (type), location) : 0)
#define SMB_THREAD_LOCK(plock) \
SMB_THREAD_LOCK_INTERNAL(plock, SMB_THREAD_LOCK, __location__)
#define SMB_THREAD_UNLOCK(plock) \
SMB_THREAD_LOCK_INTERNAL(plock, SMB_THREAD_UNLOCK, __location__)
#define SMB_THREAD_ONCE(ponce, init_fn, pdata) \
(global_tfp \
? (! *(ponce) \
? smb_thread_once((ponce), (init_fn), (pdata)) \
: 0) \
: ((init_fn(pdata)), *(ponce) = true, 1))
#define SMB_THREAD_CREATE_TLS(keyname, key) \
(global_tfp ? global_tfp->create_tls((keyname), &(key), __location__) : 0)
#define SMB_THREAD_DESTROY_TLS(key) \
do { \
if (global_tfp) { \
global_tfp->destroy_tls(&(key), __location__); \
}; \
} while (0)
#define SMB_THREAD_SET_TLS(key, val) \
(global_tfp ? global_tfp->set_tls((key),(val),__location__) : \
((key) = (val), 0))
#define SMB_THREAD_GET_TLS(key) \
(global_tfp ? global_tfp->get_tls((key), __location__) : (key))
/*
* Global thread lock list.
*/
#define NUM_GLOBAL_LOCKS 1
#define GLOBAL_LOCK(locknum) (global_lock_array ? global_lock_array[(locknum)] : NULL)
#endif