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Diffstat (limited to 'gcell/ibm/sync/spu_source/write_trylock.h')
| -rw-r--r-- | gcell/ibm/sync/spu_source/write_trylock.h | 72 |
1 files changed, 0 insertions, 72 deletions
diff --git a/gcell/ibm/sync/spu_source/write_trylock.h b/gcell/ibm/sync/spu_source/write_trylock.h deleted file mode 100644 index b3799b37e..000000000 --- a/gcell/ibm/sync/spu_source/write_trylock.h +++ /dev/null @@ -1,72 +0,0 @@ -/* -------------------------------------------------------------- */ -/* (C)Copyright 2001,2007, */ -/* International Business Machines Corporation, */ -/* Sony Computer Entertainment, Incorporated, */ -/* Toshiba Corporation, */ -/* */ -/* All Rights Reserved. */ -/* */ -/* Redistribution and use in source and binary forms, with or */ -/* without modification, are permitted provided that the */ -/* following conditions are met: */ -/* */ -/* - Redistributions of source code must retain the above copyright*/ -/* notice, this list of conditions and the following disclaimer. */ -/* */ -/* - Redistributions in binary form must reproduce the above */ -/* copyright notice, this list of conditions and the following */ -/* disclaimer in the documentation and/or other materials */ -/* provided with the distribution. */ -/* */ -/* - Neither the name of IBM Corporation nor the names of its */ -/* contributors may be used to endorse or promote products */ -/* derived from this software without specific prior written */ -/* permission. */ -/* */ -/* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND */ -/* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, */ -/* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF */ -/* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE */ -/* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR */ -/* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, */ -/* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT */ -/* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; */ -/* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) */ -/* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN */ -/* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR */ -/* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, */ -/* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ -/* -------------------------------------------------------------- */ -/* PROLOG END TAG zYx */ -#ifndef _SPU_WRITE_TRYLOCK_H_ -#define _SPU_WRITE_TRYLOCK_H_ - -#include "sync_utils.h" -#include "mutex.h" - -/** - * write_trylock - acquire a writer lock, or return immediately. - * @ea: handle to effective address of lock variable. - * - * Try to acquire an exclusive writer lock, or return - * immediately. The only restriction here is that @ea - * must be word aligned. - * - * Returns 1 on success, or 0 on failure. - * - * Caution: - * The application should not call this interface from a tight - * loop!! Use write_lock() instead. - */ -static __inline int _write_trylock(eaddr_t ea) -{ - DECL_MUTEX_VARS(); - s32 status, ret_val; - - RAW_TEST_AND_SET(==, -1); - - return ret_val; -} - - -#endif /* _SPU_WRITE_TRYLOCK_H_ */ |