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Merge "Revert "Reserve space in pthread structures for future extensibility.""

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Greg Hackmann 2014-04-24 18:12:27 +00:00 committed by Gerrit Code Review
commit ab290718e3
1 changed files with 12 additions and 27 deletions
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25
libc/include/pthread.h
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@ -35,26 +35,17 @@
#include <limits.h>
#include <sys/types.h>
#ifdef __LP64__
#define __RESERVED_INITIALIZER , {0}
#else
#define __RESERVED_INITIALIZER
#endif
typedef struct {
int volatile value;
#ifdef __LP64__
char __reserved[36];
#endif
} pthread_mutex_t;
#define __PTHREAD_MUTEX_INIT_VALUE 0
#define __PTHREAD_RECURSIVE_MUTEX_INIT_VALUE 0x4000
#define __PTHREAD_ERRORCHECK_MUTEX_INIT_VALUE 0x8000
#define PTHREAD_MUTEX_INITIALIZER {__PTHREAD_MUTEX_INIT_VALUE __RESERVED_INITIALIZER}
#define PTHREAD_RECURSIVE_MUTEX_INITIALIZER {__PTHREAD_RECURSIVE_MUTEX_INIT_VALUE __RESERVED_INITIALIZER}
#define PTHREAD_ERRORCHECK_MUTEX_INITIALIZER {__PTHREAD_ERRORCHECK_MUTEX_INIT_VALUE __RESERVED_INITIALIZER}
#define PTHREAD_MUTEX_INITIALIZER {__PTHREAD_MUTEX_INIT_VALUE}
#define PTHREAD_RECURSIVE_MUTEX_INITIALIZER {__PTHREAD_RECURSIVE_MUTEX_INIT_VALUE}
#define PTHREAD_ERRORCHECK_MUTEX_INITIALIZER {__PTHREAD_ERRORCHECK_MUTEX_INIT_VALUE}
enum {
PTHREAD_MUTEX_NORMAL = 0,
@ -69,12 +60,9 @@ enum {
typedef struct {
int volatile value;
#ifdef __LP64__
char __reserved[44];
#endif
} pthread_cond_t;
#define PTHREAD_COND_INITIALIZER {0 __RESERVED_INITIALIZER}
#define PTHREAD_COND_INITIALIZER {0}
typedef struct {
uint32_t flags;
@ -83,9 +71,6 @@ typedef struct {
size_t guard_size;
int32_t sched_policy;
int32_t sched_priority;
#ifdef __LP64__
char __reserved[16];
#endif
} pthread_attr_t;
typedef long pthread_mutexattr_t;
@ -100,7 +85,7 @@ typedef struct {
int writerThreadId;
int pendingReaders;
int pendingWriters;
void* __reserved[4];
void* reserved[4]; /* for future extensibility */
} pthread_rwlock_t;
#define PTHREAD_RWLOCK_INITIALIZER { PTHREAD_MUTEX_INITIALIZER, PTHREAD_COND_INITIALIZER, 0, 0, 0, 0, { NULL, NULL, NULL, NULL } }