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| author | Andi Kleen <ak@linux.intel.com> | 2012-12-22 00:58:34 -0800 |
|---|---|---|
| committer | Andi Kleen <ak@linux.intel.com> | 2013-07-02 08:46:54 -0700 |
| commit | b023e4ca99f5e81f90d87d23cd267ef2abd2388c (patch) | |
| tree | 6fd6b77bef5574ee6fa5aa44967766b018d3b489 /nptl/pthreadP.h | |
| parent | 1cdbe579482c07e9f4bb3baa4864da2d3e7eb837 (diff) | |
| download | glibc-b023e4ca99f5e81f90d87d23cd267ef2abd2388c.zip glibc-b023e4ca99f5e81f90d87d23cd267ef2abd2388c.tar.gz glibc-b023e4ca99f5e81f90d87d23cd267ef2abd2388c.tar.bz2 | |
Add new internal mutex type flags for elision.
Add Enable/disable flags used internally
Extend the mutex initializers to have the fields needed for
elision. The layout stays the same, and this is not visible
to programs.
These changes are not exposed outside pthread
Diffstat (limited to 'nptl/pthreadP.h')
| -rw-r--r-- | nptl/pthreadP.h | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/nptl/pthreadP.h b/nptl/pthreadP.h index 7883fdf..e6b80bf 100644 --- a/nptl/pthreadP.h +++ b/nptl/pthreadP.h @@ -61,6 +61,10 @@ enum { PTHREAD_MUTEX_KIND_MASK_NP = 3, + + PTHREAD_MUTEX_ELISION_NP = 256, + PTHREAD_MUTEX_NO_ELISION_NP = 512, + PTHREAD_MUTEX_ROBUST_NORMAL_NP = 16, PTHREAD_MUTEX_ROBUST_RECURSIVE_NP = PTHREAD_MUTEX_ROBUST_NORMAL_NP | PTHREAD_MUTEX_RECURSIVE_NP, @@ -93,12 +97,21 @@ enum PTHREAD_MUTEX_PP_ERRORCHECK_NP = PTHREAD_MUTEX_PRIO_PROTECT_NP | PTHREAD_MUTEX_ERRORCHECK_NP, PTHREAD_MUTEX_PP_ADAPTIVE_NP - = PTHREAD_MUTEX_PRIO_PROTECT_NP | PTHREAD_MUTEX_ADAPTIVE_NP + = PTHREAD_MUTEX_PRIO_PROTECT_NP | PTHREAD_MUTEX_ADAPTIVE_NP, + PTHREAD_MUTEX_ELISION_FLAGS_NP + = PTHREAD_MUTEX_ELISION_NP | PTHREAD_MUTEX_NO_ELISION_NP, + + PTHREAD_MUTEX_TIMED_ELISION_NP = + PTHREAD_MUTEX_TIMED_NP | PTHREAD_MUTEX_ELISION_NP, + PTHREAD_MUTEX_TIMED_NO_ELISION_NP = + PTHREAD_MUTEX_TIMED_NP | PTHREAD_MUTEX_NO_ELISION_NP, }; #define PTHREAD_MUTEX_PSHARED_BIT 128 #define PTHREAD_MUTEX_TYPE(m) \ ((m)->__data.__kind & 127) +#define PTHREAD_MUTEX_TYPE_ELISION(m) \ + ((m)->__data.__kind & (127|PTHREAD_MUTEX_ELISION_FLAGS_NP)) #if LLL_PRIVATE == 0 && LLL_SHARED == 128 # define PTHREAD_MUTEX_PSHARED(m) \ |