lib/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2026-01-06 11:51:29 +03:00
Code Activity

Update.

Browse Source 
* malloc/Makefile: Change all references to memprof into memusage.
	* malloc/memprof.c: Rename to...
	* malloc/memusage.c: ...this.  New file.
	* malloc/memprof.sh: Rename to...
	* malloc/memusage.sh: ...this.  New file.
	* malloc/memprofstat.c: Rename to...
	* malloc/memusagestat.c: ...this.  New file.
This commit is contained in:
Ulrich Drepper
2000-06-20 04:46:22 +00:00
parent ea97f90c9a
commit ba80a015ee
9 changed files with 135 additions and 73 deletions
Download Patch File Download Diff File Expand all files Collapse all files

35
linuxthreads/spinlock.h
View File

@@ -12,6 +12,25 @@
/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */
/* GNU Library General Public License for more details. */
/* There are 2 compare and swap synchronization primitives with
different semantics:
1. compare_and_swap, which has acquire semantics (i.e. it
completes befor subsequent writes.)
2. compare_and_swap_with_release_semantics, which has release
semantics (it completes after previous writes.)
For those platforms on which they are the same. HAS_COMPARE_AND_SWAP
should be defined. For those platforms on which they are different,
HAS_COMPARE_AND_SWAP_WITH_RELEASE_SEMANTICS has to be defined. */
#ifndef HAS_COMPARE_AND_SWAP
#ifdef HAS_COMPARE_AND_SWAP_WITH_RELEASE_SEMANTICS
#define HAS_COMPARE_AND_SWAP
#endif
#endif
#if defined(TEST_FOR_COMPARE_AND_SWAP)
extern int __pthread_has_cas;
@@ -29,6 +48,18 @@ static inline int compare_and_swap(long * ptr, long oldval, long newval,
#elif defined(HAS_COMPARE_AND_SWAP)
#ifdef HAS_COMPARE_AND_SWAP_WITH_RELEASE_SEMANTICS
static inline int
compare_and_swap_with_release_semantics (long * ptr, long oldval,
long newval, int * spinlock)
{
return __compare_and_swap_with_release_semantics (ptr, oldval,
newval);
}
#endif
static inline int compare_and_swap(long * ptr, long oldval, long newval,
int * spinlock)
{
@@ -48,6 +79,10 @@ static inline int compare_and_swap(long * ptr, long oldval, long newval,
#endif
#ifndef HAS_COMPARE_AND_SWAP_WITH_RELEASE_SEMANTICS
#define compare_and_swap_with_release_semantics compare_and_swap
#endif
/* Internal locks */
extern void internal_function __pthread_lock(struct _pthread_fastlock * lock,