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Add timespec_utils header
jonroach 11 Sep 2025 14:44
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 #include <time.h>
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 static inline bool timespec_lt(struct timespec a, struct timespec b){
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 return a.tv_sec < b.tv_sec || (a.tv_sec == b.tv_sec && a.tv_nsec < b.tv_nsec);
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 }
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 static inline bool timespec_lte(struct timespec a, struct timespec b){
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 return a.tv_sec < b.tv_sec || (a.tv_sec == b.tv_sec && a.tv_nsec <= b.tv_nsec);
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 }
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 static inline bool timespec_eq(struct timespec a, struct timespec b){
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 return a.tv_sec == b.tv_sec && a.tv_nsec == b.tv_nsec;
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 }
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 static inline bool timespec_gt(struct timespec a, struct timespec b){
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 return timespec_lt(b, a);
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 }
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 static inline struct timespec timespec_sub(struct timespec a, struct timespec b){
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 struct timespec r;
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 if (a.tv_nsec < b.tv_nsec){
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 r.tv_nsec = 1000000000 + a.tv_nsec - b.tv_nsec;
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 r.tv_sec = a.tv_sec - b.tv_sec - 1;
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 } else {
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 r.tv_nsec = a.tv_nsec - b.tv_nsec;
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 r.tv_sec = a.tv_sec - b.tv_sec;
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 }
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 return r;
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 }
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 static inline bool timespec_gte(struct timespec a, struct timespec b){
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 return timespec_lte(b, a);
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 }
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 static inline bool timespec_ne(struct timespec a, struct timespec b){
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 return !timespec_eq(a, b);
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 }
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