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RTEMS: Optimize pthread_once_t 

Reduce size of pthread_once_t and make it zero-initialized.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
This commit is contained in:
Sebastian Huber 2017-09-19 15:08:35 +02:00
parent f9b24fad7c
commit 4fef7312b3
2 changed files with 6 additions and 7 deletions
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5
newlib/libc/sys/rtems/include/machine/_threads.h
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@ -41,12 +41,11 @@ typedef __uint32_t tss_t;
/* pthread_once_t */ /* pthread_once_t */
typedef struct { typedef struct {
int _is_initialized; unsigned char _flags;
int _init_executed;
} once_flag; } once_flag;
/* PTHREAD_ONCE_INIT */ /* PTHREAD_ONCE_INIT */
#define ONCE_FLAG_INIT { 1, 0 } #define ONCE_FLAG_INIT { 0 }
/* PTHREAD_DESTRUCTOR_ITERATIONS */ /* PTHREAD_DESTRUCTOR_ITERATIONS */
#define TSS_DTOR_ITERATIONS 4 #define TSS_DTOR_ITERATIONS 4

8
newlib/libc/sys/rtems/include/sys/_pthreadtypes.h
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@ -169,11 +169,11 @@ typedef struct {
typedef __uint32_t pthread_key_t; /* thread-specific data keys */ typedef __uint32_t pthread_key_t; /* thread-specific data keys */
typedef struct { typedef struct {
int is_initialized; /* is this structure initialized? */ unsigned char _flags;
int init_executed; /* has the initialization routine been run? */ } pthread_once_t;
} pthread_once_t; /* dynamic package initialization */
#define _PTHREAD_ONCE_INIT { 0 }
#define _PTHREAD_ONCE_INIT { 1, 0 } /* is initialized and not run */
#endif /* defined(_POSIX_THREADS) */ #endif /* defined(_POSIX_THREADS) */
/* POSIX Barrier Types */ /* POSIX Barrier Types */