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Annotation of researchv10dc/630/man/src/p_man/man3/printq.3r, revision 1.1.1.1

1.1       root        1: .ds ZZ DEVELOPMENT PACKAGE
                      2: .TH PRINTQ 3R "630 MTG"
                      3: .XE "printqempty()"
                      4: .XE "printqspace()"
                      5: .XE "printqclear()"
                      6: .SH NAME
                      7: printq: printqempty, printqspace, printqclear \- printer queue management
                      8: .SH SYNOPSIS
                      9: .B int printqempty ( )
                     10: .sp
                     11: .B int printqspace ( )
                     12: .sp
                     13: .B void printqclear ( )
                     14: .sp
                     15: .SH DESCRIPTION
                     16: Between terminal processes and the printer is a queue used
                     17: for buffering characters being sent to the printer.
                     18: The
                     19: .I printqempty
                     20: function
                     21: returns 1 if this queue is empty.
                     22: Otherwise, 0 is returned.
                     23: .P
                     24: The
                     25: .I printqspace
                     26: function
                     27: returns the number of characters that can be added to the queue before
                     28: it fills. A full buffer affects the way the
                     29: .I psendchar
                     30: function operates.
                     31: .P
                     32: The
                     33: .I printqclear
                     34: function
                     35: removes all the characters currently in the queue.
                     36: This prevents them from going to the printer.
                     37: This routine clears the queue only if the printer is owned.
                     38: .P
                     39: If the printer is not owned,
                     40: .I printqempty
                     41: returns 1 and
                     42: .I printqspace
                     43: returns 0.
                     44: .SH SEE ALSO
                     45: psendchar(3R), resources(3R).

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