diff options
Diffstat (limited to 'linuxthreads/internals.h')
| -rw-r--r-- | linuxthreads/internals.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/linuxthreads/internals.h b/linuxthreads/internals.h index a9e262b484..3fcec42630 100644 --- a/linuxthreads/internals.h +++ b/linuxthreads/internals.h @@ -107,6 +107,22 @@ struct pthread_atomic { int p_spinlock; }; +/* Context info for read write locks. The pthread_rwlock_info structure + is information about a lock that has been read-locked by the thread + in whose list this structure appears. The pthread_rwlock_context + is embedded in the thread context and contains a pointer to the + head of the list of lock info structures, as well as a count of + read locks that are untracked, because no info structure could be + allocated for them. */ + +struct _pthread_rwlock_t; + +typedef struct _pthread_rwlock_info { + struct _pthread_rwlock_info *pr_next; + struct _pthread_rwlock_t *pr_lock; + int pr_lock_count; +} pthread_readlock_info; + struct _pthread_descr_struct { pthread_descr p_nextlive, p_prevlive; /* Double chaining of active threads */ @@ -149,6 +165,9 @@ struct _pthread_descr_struct { called on thread */ char p_woken_by_cancel; /* cancellation performed wakeup */ pthread_extricate_if *p_extricate; /* See above */ + pthread_readlock_info *p_readlock_list; /* List of readlock info structs */ + pthread_readlock_info *p_readlock_free; /* Free list of structs */ + int p_untracked_readlock_count; /* Readlocks not tracked by list */ struct __res_state *p_resp; /* Pointer to resolver state */ struct __res_state p_res; /* per-thread resolver state */ /* New elements must be added at the end. */ |