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This part failed to compile due to a circular dependency between internal/e_os.h and internal/time.h, when ossl_sleep() falls back to a busy wait. However, djgpp has a usleep function, so it can use the regular Unix version of ossl_sleep(). It's not great though. The resolution is only ~55ms, and it may break when a user program hooks the timer interrupt without periodically updating BIOS time. A high-resolution alternative is uclock(), but that is generally less desirable since it reprograms the system timer. The circular dependency is still there and may still cause trouble for other platforms. CLA: trivial Reviewed-by: Richard Levitte <levitte@openssl.org> Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/19274) |
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