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Annotation of lucent/sys/man/3/fcall, revision 1.1

1.1     ! root        1: .TH FCALL 3 
        !             2: .SH NAME
        !             3: fcall \- recreate packet delimiters
        !             4: .SH SYNOPSIS
        !             5: .nf
        !             6: .B
        !             7: Fctlfd = open(".../ctl", ORDWR);
        !             8: .B
        !             9: Fwrite(ctlfd, "push fcall", 10);
        !            10: .fi
        !            11: .SH DESCRIPTION
        !            12: .PP
        !            13: .B Fcall is a
        !            14: .I stream module
        !            15: (see
        !            16: .IR stream (3))
        !            17: that can be pushed onto a connection to a 9P file server. The function
        !            18: of the module is to recreate packet delimiters lost in transmission.
        !            19: The 9P protocol demands that network connections preserve delimiters between
        !            20: messages written to the file server.
        !            21: Stream based protocols, like TCP, are unable to preserve
        !            22: delimiters. The delimiters must be recreated by the receiver before a packet
        !            23: is read by a file system.
        !            24: .PP
        !            25: .I Fcall
        !            26: examines a data stream and identifies 9P messages from their type. The length
        !            27: of the message is computed from the header.
        !            28: Data is collected and buffered by the stream module until an entire 9P message
        !            29: has been assembled. A single message is then delimited and sent upstream to be read
        !            30: by a file server.
        !            31: .SH "SEE ALSO"
        !            32: .IR stream (3),
        !            33: .IR ip (3),
        !            34: .IR exportfs (4),
        !            35: .IR srv (4)
        !            36: .SH SOURCE
        !            37: .B /sys/src/9/port/stfcall.c

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