o ~`@sddlZddlZddlZddlmZzddlmZWney)ddlmZYnwgdZGddde Z ej dkr@d d Z nd d Z dd dZ dddZddZddZddadddZdddZdS)N)partial) monotonic)time)NoWayToWaitForSocketError wait_for_readwait_for_writec@s eZdZdS)rN)__name__ __module__ __qualname__r r 3/usr/lib/python3/dist-packages/urllib3/util/wait.pyrsr)cCs||SNr )fntimeoutr r r _retry_on_intr*rc Cs|dur td}nt|} z||WSttjfyE}z"|jdtjkr(|t}|dkr3d}|tdkr;d}WYd}~qd}~ww)NinfTr)floatrOSErrorselecterrorargserrnoZEINTR)rrZdeadlineer r r r0s"      Fc Csd|s|stdg}g}|r|||r||ttj|||}t||\}}} t|p0|p0| S)N2must specify at least one of read=True, write=True) RuntimeErrorappendrrrbool) sockreadwriterZrcheckZwcheckrZrreadyZwreadyZxreadyr r r select_wait_for_socketGs  r#cs^|s|stdd}|r|tjO}|r|tjO}t||fdd}tt||S)Nrrcs|dur|d9}|S)Ni)poll)tZpoll_objr r do_pollfs z%poll_wait_for_socket..do_poll)rrZPOLLINZPOLLOUTr$registerrr)r r!r"rmaskr'r r&r poll_wait_for_socketZs    r*cOstd)Nzno select-equivalent available)rrkwargsr r r null_wait_for_socketnrr-c Cs4z t}t|jdWdSttfyYdSw)NrFT)rr$rAttributeErrorrr&r r r _have_working_pollrsr/cOs.trtan ttdrtantat|i|S)Nr)r/r*wait_for_sockethasattrrr#r-r+r r r r0s  r0cCt|d|dS)zWaits for reading to be available on a given socket. Returns True if the socket is readable, or False if the timeout expired. T)r!rr0r rr r r rrcCr2)zWaits for writing to be available on a given socket. Returns True if the socket is readable, or False if the timeout expired. T)r"rr3r4r r r rr5r)FFNr)rrsys functoolsrrr ImportError__all__ Exceptionr version_inforr#r*r-r/r0rrr r r r s*