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time: Add a timeval with a 32-bit tv_sec and tv_usec
On y2038 safe 32-bit systems the Linux kernel expects itimerval to use a 32-bit time_t, even though the other time_t's are 64-bit. To address this let's add a __timeval32 struct to be used internally. Reviewed-by: Lukasz Majewski <lukma@denx.de> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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@ -432,6 +432,51 @@ timespec64_to_timeval64 (const struct __timespec64 ts64)
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return tv64;
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}
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/* A version of 'struct timeval' with 32-bit time_t
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and suseconds_t. */
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struct __timeval32
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{
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__int32_t tv_sec; /* Seconds. */
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__int32_t tv_usec; /* Microseconds. */
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};
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/* Conversion functions for converting to/from __timeval32 */
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static inline struct __timeval64
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valid_timeval32_to_timeval64 (const struct __timeval32 tv)
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{
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return (struct __timeval64) { tv.tv_sec, tv.tv_usec };
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}
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static inline struct __timeval32
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valid_timeval64_to_timeval32 (const struct __timeval64 tv64)
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{
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return (struct __timeval32) { tv64.tv_sec, tv64.tv_usec };
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}
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static inline struct timeval
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valid_timeval32_to_timeval (const struct __timeval32 tv)
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{
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return (struct timeval) { tv.tv_sec, tv.tv_usec };
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}
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static inline struct __timeval32
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valid_timeval_to_timeval32 (const struct timeval tv)
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{
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return (struct __timeval32) { tv.tv_sec, tv.tv_usec };
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}
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static inline struct timespec
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valid_timeval32_to_timespec (const struct __timeval32 tv)
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{
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return (struct timespec) { tv.tv_sec, tv.tv_usec * 1000 };
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}
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static inline struct __timeval32
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valid_timespec_to_timeval32 (const struct timespec ts)
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{
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return (struct __timeval32) { (time_t) ts.tv_sec, ts.tv_nsec / 1000 };
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}
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/* Check if a value is in the valid nanoseconds range. Return true if
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it is, false otherwise. */
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static inline bool
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