Tty-hacking procs when possible take stdio as a default upon which to operate.
These procs now may be applied to tty file names as well as ports and fdes.
This commit is contained in:
shivers
parent
2baee835a2
commit
3d91476f54
118
scsh/tty.scm
118
scsh/tty.scm
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@ -70,6 +70,14 @@
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(define set-tty-info:min set-%tty-info:min)
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(define set-tty-info:time set-%tty-info:time)
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(define modify-tty-info:control-chars modify-%tty-info:control-chars)
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(define modify-tty-info:input-flags modify-%tty-info:input-flags)
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(define modify-tty-info:output-flags modify-%tty-info:output-flags)
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(define modify-tty-info:control-flags modify-%tty-info:control-flags)
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(define modify-tty-info:local-flags modify-%tty-info:local-flags)
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(define modify-tty-info:min modify-%tty-info:min)
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(define modify-tty-info:time modify-%tty-info:time)
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;;; Encode the speeds at assignment time.
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(define (set-tty-info:input-speed info speed)
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(set-%tty-info:input-speed-code info (encode-baud-rate speed))
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@ -79,6 +87,11 @@
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(set-%tty-info:output-speed-code info (encode-baud-rate speed))
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(set-%tty-info:output-speed info speed))
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(define (modify-tty-info:input-speed info proc)
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(set-tty-info:input-speed info (proc (tty-info:input-speed info))))
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(define (modify-tty-info:output-speed info proc)
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(set-tty-info:output-speed info (proc (tty-info:output-speed info))))
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(define (make-tty-info iflags oflags cflags lflags ispeed ospeed min time)
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(make-%tty-info (make-string num-ttychars (ascii->char 0))
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@ -101,16 +114,23 @@
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(tty-info:time info)))
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;;; (tty-info fd/port)
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;; Retrieve tty-info bits from a tty.
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(define (tty-info fdport)
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(define (sleazy-call/file tty opener proc)
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(if (string? tty) (opener tty proc)
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(sleazy-call/fdes tty proc)))
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;;; (tty-info [fd/port/fname])
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;; Retrieve tty-info bits from a tty. Arg defaults to current input port.
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(define (tty-info . maybe-tty)
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(let ((control-chars (make-string num-ttychars)))
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(receive (iflag-hi8 iflag-lo24 oflag-hi8 oflag-lo24
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cflag-hi8 cflag-lo24 lflag-hi8 lflag-lo24
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ispeed-code ospeed-code)
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(sleazy-call/fdes fdport (lambda (fd) (%tty-info fd control-chars)))
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(sleazy-call/file (:optional maybe-tty (current-input-port))
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call-with-input-file
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(lambda (fd) (%tty-info fd control-chars)))
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(make-%tty-info control-chars
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(bitwise-ior (arithmetic-shift iflag-hi8 24) iflag-lo24)
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(bitwise-ior (arithmetic-shift oflag-hi8 24) oflag-lo24)
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@ -139,14 +159,14 @@
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integer integer)
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;;; (set-tty-info fdport option info) [Not exported]
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;;; (set-tty-info/now fdport option info)
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;;; (set-tty-info/drain fdport option info)
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;;; (set-tty-info/flush fdport option info)
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;;; (set-tty-info tty option info) [Not exported]
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;;; (set-tty-info/now tty option info)
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;;; (set-tty-info/drain tty option info)
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;;; (set-tty-info/flush tty option info)
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;; Assign tty-info bits to a tty.
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(define (set-tty-info fdport option info)
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(define (set-tty-info tty option info)
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(let ((if (tty-info:input-flags info))
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(of (tty-info:output-flags info))
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(cf (tty-info:control-flags info))
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@ -162,7 +182,7 @@
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(cflag-lo24 (bitwise-and cf #xffffff))
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(lflag-hi8 (arithmetic-shift lf -24))
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(lflag-lo24 (bitwise-and lf #xffffff)))
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(sleazy-call/fdes fdport
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(sleazy-call/file tty call-with-input-file
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(lambda (fd)
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(%set-tty-info fd option
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cc
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@ -211,7 +231,7 @@
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;;; file is loaded due to the set-tty-info/foo definitions below.
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(define (make-tty-info-setter how)
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(lambda (fdport info) (set-tty-info fdport how info)))
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(lambda (tty info) (set-tty-info tty how info)))
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(define set-tty-info/now (make-tty-info-setter %set-tty-info/now))
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(define set-tty-info/drain (make-tty-info-setter %set-tty-info/drain))
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@ -221,10 +241,12 @@
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;;; Send a break on the serial line.
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(define (send-tty-break fdport . maybe-duration)
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(sleazy-call/fdes fdport
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(define (send-tty-break . args) ; [tty duration]
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(let-optionals args ((tty (current-output-port))
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(duration 0))
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(sleazy-call/file tty call-with-output-file
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(lambda (fdes)
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(%send-tty-break-fdes fdes (:optional maybe-duration 0)))))
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(%send-tty-break-fdes fdes duration)))))
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(define-errno-syscall (%send-tty-break-fdes fdes duration)
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%send-tty-break-fdes/errno)
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@ -237,12 +259,16 @@
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;;; Drain the main vein.
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(define (drain-tty fdport)
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(cond ((integer? fdport) (%tcdrain fdport)) ; File descriptor.
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((fdport? fdport) ; Scheme port -- flush first.
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(force-output fdport)
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(sleazy-call/fdes fdport %tcdrain))
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(else (error "Illegal argument to DRAIN-TTY" fdport))))
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(define (drain-tty . maybe-tty)
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(let ((tty (:optional maybe-tty (current-output-port))))
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(cond ((integer? tty) (%tcdrain tty)) ; File descriptor.
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((fdport? tty) ; Scheme port -- flush first.
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(force-output tty)
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(sleazy-call/fdes tty %tcdrain))
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((string? tty) ; file name
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(call-with-output-file tty
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(lambda (p) (sleazy-call/fdes p %tcdrain))))
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(else (error "Illegal argument to DRAIN-TTY" tty)))))
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(define-errno-syscall (%tcdrain fdes) %tcdrain/errno)
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(define-foreign %tcdrain/errno (tcdrain (integer fdes)) no-declare ; Ultrix
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@ -254,13 +280,21 @@
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;;; Note that the magic %flush-tty/foo constants must be defined before this
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;;; file is loaded due to the flush-tty/foo definitions below.
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(define (make-tty-flusher flag)
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(lambda (fdport)
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(sleazy-call/fdes fdport (lambda (fdes) (%tcflush fdes flag)))))
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(define (make-input-tty-flusher flag)
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(lambda maybe-tty
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(sleazy-call/file (:optional maybe-tty (current-input-port))
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call-with-input-file
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(lambda (fdes) (%tcflush fdes flag)))))
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(define flush-tty/input (make-tty-flusher %flush-tty/input))
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(define flush-tty/output (make-tty-flusher %flush-tty/output))
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(define flush-tty/both (make-tty-flusher %flush-tty/both))
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(define (make-output-tty-flusher flag)
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(lambda maybe-tty
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(sleazy-call/file (:optional maybe-tty (current-output-port))
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call-with-output-file
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(lambda (fdes) (%tcflush fdes flag)))))
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(define flush-tty/input (make-input-tty-flusher %flush-tty/input))
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(define flush-tty/output (make-output-tty-flusher %flush-tty/output))
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(define flush-tty/both (make-input-tty-flusher %flush-tty/both))
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(define-errno-syscall (%tcflush fdes flag) %tcflush/errno)
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(define-foreign %tcflush/errno (tcflush (integer fdes) (integer flag))
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@ -273,14 +307,22 @@
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;;; Note that the magic %tcflow/foo constants must be defined before this
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;;; file is loaded due to the definitions below.
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(define (make-flow-controller action)
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(lambda (fdport)
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(sleazy-call/fdes fdport (lambda (fdes) (%tcflow fdes action)))))
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(define (make-input-flow-controller action)
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(lambda maybe-tty
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(sleazy-call/file (:optional maybe-tty (current-input-port))
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call-with-input-file
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(lambda (fdes) (%tcflow fdes action)))))
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(define start-tty-output (make-flow-controller %tcflow/start-out))
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(define stop-tty-output (make-flow-controller %tcflow/stop-out))
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(define start-tty-input (make-flow-controller %tcflow/start-in))
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(define stop-tty-input (make-flow-controller %tcflow/stop-in))
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(define (make-output-flow-controller action)
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(lambda maybe-tty
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(sleazy-call/file (:optional maybe-tty (current-output-port))
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call-with-output-file
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(lambda (fdes) (%tcflow fdes action)))))
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(define start-tty-output (make-output-flow-controller %tcflow/start-out))
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(define stop-tty-output (make-output-flow-controller %tcflow/stop-out))
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(define start-tty-input (make-input-flow-controller %tcflow/start-in))
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(define stop-tty-input (make-input-flow-controller %tcflow/stop-in))
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(define-errno-syscall (%tcflow fdes action) %tcflow/errno)
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@ -310,8 +352,8 @@
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;;; Set/Get tty process group
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(define (set-tty-process-group port/fd proc-group)
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(sleazy-call/fdes port/fd
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(define (set-tty-process-group tty proc-group)
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(sleazy-call/file tty call-with-input-file
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(lambda (fd)
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(%set-tty-process-group fd (if (integer? proc-group)
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proc-group
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@ -325,8 +367,8 @@
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no-declare ; Ultrix
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(to-scheme integer errno_or_false))
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(define (tty-process-group port/fd)
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(sleazy-call/fdes port/fd %tty-process-group))
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(define (tty-process-group tty)
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(sleazy-call/file tty call-with-input-file %tty-process-group))
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(define-errno-syscall (%tty-process-group fd) %tty-process-group/errno
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pid)
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