scsh-0.6/scheme/vm/interfaces.scm

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; Copyright (c) 1993-1999 by Richard Kelsey and Jonathan Rees. See file COPYING.
(define-interface vm-utilities-interface
(export adjoin-bits low-bits high-bits unsigned-high-bits
assert
vector+length-fill!
natural-for-each
error?
write-error-string write-error-integer write-error-newline
error-message
))
(define-interface vm-architecture-interface
(export architecture-version
(enum :syntax) ;so you don't have to remember to open enumerated
bits-used-per-byte byte-limit
(interrupt :syntax)
interrupt-count
(memory-status-option :syntax)
(op :syntax)
op-count
opcode-arg-specs
(exception :syntax)
(stob :syntax)
stob-count
least-b-vector-type
stob-data
(time-option :syntax)
(channel-status-option :syntax)
(port-status-options :syntax)
(current-port-marker :syntax)
maximum-stack-args
maximum-external-call-args
two-byte-nargs-protocol
two-byte-nargs+list-protocol
args+nargs-protocol
big-stack-protocol
nary-dispatch-protocol
default-stack-space
environment-stack-size
continuation-stack-size
available-stack-space
))
; Memory
(define-interface memory-interface
(export create-memory memory-begin memory-size
bytes-per-cell bits-per-cell
bytes->cells
cells->bytes
a-units->cells
cells->a-units
bytes->a-units
address+ address- address1+ address2+
address-difference
address= address< address<= address> address>=
address->integer integer->address
null-address null-address?
fetch fetch-byte
store! store-byte!
fetch-string fetch-nul-terminated-string
copy-memory! memory-equal? ; from ps-memory
read-block write-block ; from ps-memory
))
; Low-level data structures
(define-interface data-interface
(export vm-eq?
fixnum? immediate? header? stob?
enter-fixnum extract-fixnum
bits-per-fixnum greatest-fixnum-value
too-small-for-fixnum? too-big-for-fixnum?
descriptor->fixnum
fixnum= fixnum< fixnum> fixnum<= fixnum>=
fixnum-bitwise-not fixnum-bitwise-and
fixnum-bitwise-ior fixnum-bitwise-xor
undefined?
true false eof-object null unspecific-value quiescent
unbound-marker unassigned-marker
vm-boolean? false? enter-boolean extract-boolean
vm-char? enter-char extract-char vm-char=? vm-char<?
make-header header-type
header-length-in-bytes header-length-in-cells header-length-in-a-units
immutable-header? make-header-immutable
d-vector-header? b-vector-header?
max-stob-contents-size-in-cells
address->stob-descriptor
address-after-header
stob-header stob-header-set!
stob-overhead
))
(define-interface fixnum-arithmetic-interface
(export add-carefully subtract-carefully
multiply-carefully divide-carefully
quotient-carefully remainder-carefully
shift-carefully
abs-carefully
))
(define-interface stob-interface
(export make-d-vector make-b-vector
d-vector-length d-vector-ref d-vector-init! d-vector-set!
b-vector-length b-vector-ref b-vector-set!
max-stob-size-in-cells
stob-of-type?
header+contents->stob
valid-index?
immutable? make-immutable!
))
(define-interface allocation-interface
(export s48-available?
s48-preallocate-space
s48-allocate-space
s48-write-barrier
))
(define-interface heap-interface
(export s48-available
s48-heap-size
s48-newspace<oldspace?
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s48-find-all
s48-find-all-records
s48-*hp* ; to keep these from being `static' in C, as
s48-*limit* ; references are introduced elsewhere via a C macro
))
(define heap-gc/image-interface
(export swap-spaces
find-resumer-records
heap-start
heap-pointer
heap-limit
set-heap-pointer!
have-static-areas?
walk-impure-areas))
(define-interface interpreter-gc-interface
(export collect
collect-saving-temp
ensure-space
ensure-space-saving-temp
ensure-space-saving-temps
maybe-ensure-space
maybe-ensure-space-saving-temp
maybe-ensure-space-saving-temps
add-gc-root!
add-post-gc-cleanup!
))
(define-interface gc-interface
(export s48-trace-value
s48-trace-locations!
s48-trace-stob-contents!
s48-begin-collection
s48-do-gc
s48-end-collection
s48-extant?
s48-gc-count
))
(define external-opcodes-interface
(export ; called from outside
s48-define-exported-binding
s48-get-imported-binding
s48-setup-external-exception
s48-resetup-external-exception
; called on startup
s48-warn-about-undefined-imported-bindings
install-shared-bindings!+gc
; for writing images
s48-cleaned-imported-bindings
s48-exported-bindings
))
(define-interface external-gc-roots-interface
(export s48-push-gc-roots!
s48-pop-gc-roots!
s48-set-gc-roots-base!
s48-release-gc-roots-base!
s48-register-gc-root!
s48-allocate-stob))
(define-interface images-interface
(export s48-image-writing-okay?
s48-write-image
s48-check-image-header
s48-read-image
s48-startup-procedure
s48-initial-symbols
s48-initial-imported-bindings
s48-initial-exported-bindings
s48-resumer-records
s48-undumpable-records
s48-initialization-complete!
s48-initializing-gc-root
s48-set-image-values!
))
(define-interface heap-init-interface
(export s48-initialize-heap
s48-register-static-areas
))
(define-interface string-table-interface
(export hash-table-size
hash-table-entry-size
make-hash-table
table-adder
table-searcher
table-remover
table-walker
table-cleaner))
(define-interface struct-interface
(export vm-pair? vm-pair-size vm-cons vm-car vm-set-car! vm-cdr vm-set-cdr!
vm-symbol? vm-symbol-size vm-make-symbol vm-symbol->string
vm-symbol-next vm-set-symbol-next!
closure? closure-size make-closure closure-template closure-env
location? location-size make-location contents set-contents! location-id
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cell? cell-size make-cell cell-ref cell-set!
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weak-pointer? weak-pointer-size make-weak-pointer weak-pointer-ref
shared-binding? shared-binding-size make-shared-binding
shared-binding-name shared-binding-is-import?
shared-binding-ref shared-binding-set!
shared-binding-next set-shared-binding-next!
channel? channel-size make-channel
channel-status set-channel-status!
channel-id set-channel-id!
channel-os-index set-channel-os-index!
channel-next set-channel-next!
channel-os-status set-channel-os-status!
port? port-size make-port
port-handler
port-status set-port-status!
port-data set-port-data!
port-buffer set-port-buffer!
port-index set-port-index!
port-limit set-port-limit!
port-lock
port-locked? set-port-locked?!
port-pending-eof? set-port-pending-eof?!
vm-vector? vm-vector-size vm-make-vector vm-vector-length
vm-vector-ref vm-vector-set!
vm-vector-fill!
record? record-size make-record record-length
record-ref record-set!
extended-number? extended-number-size make-extended-number
extended-number-length
extended-number-ref extended-number-set!
continuation? continuation-size make-continuation continuation-length
continuation-ref continuation-set!
continuation-cont set-continuation-cont!
continuation-pc set-continuation-pc!
continuation-template set-continuation-template!
continuation-env set-continuation-env!
continuation-cells
code-vector? code-vector-size make-code-vector code-vector-length
code-vector-ref code-vector-set!
template? template-size make-template template-length
template-ref template-set!
template-code template-name
make-template-containing-ops op-template-size
vm-string? vm-string-size vm-make-string vm-string-length
vm-string-ref vm-string-set!
enter-string extract-string
vm-string=? vm-string-hash
bignum? ratnum? double?
))
(define-interface vmio-interface
(export initialize-i/o-system+gc
make-registered-channel
s48-add-channel
s48-close-channel
s48-set-channel-os-index
close-channel!
close-channel-index!
os-index->channel
open-channels-list
close-untraced-channels!
s48-mark-traced-channels-closed!
trace-io
input-channel?
output-channel?
open?
input-channel-queue-empty?
output-channel-queue-empty?
enqueue-input-channel!
dequeue-input-channel!
enqueue-output-channel!
dequeue-output-channel!
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vm-channel-abort
))
(define-interface environment-interface
(export current-env set-current-env!
env-ref env-set! env-parent env-back
pop-args-into-env
heap-env-space pop-args-into-heap-env
current-env-size preserve-current-env
))
(define-interface stack-interface
(export initialize-stack+gc
reset-stack-pointer stack-size
push pop stack-ref stack-set!
ensure-stack-space!
ensure-default-procedure-space!
push-continuation-on-stack
pop-continuation-from-stack
current-continuation-size current-continuation
set-current-continuation!
peek-at-current-continuation skip-current-continuation!
get-continuation-from-heap
trace-stack
arguments-on-stack
move-args-above-cont!
pointer-to-stack-arguments ; for calling external procedures
remove-stack-arguments
report-continuation-uids
))
(define-interface external-interface
(export extended-vm
external-call
real-time
run-time
cheap-time
schedule-interrupt
))
(define-interface event-interface
(export initialize-events
get-next-event
wait-for-event
(events :syntax)
))
(define-interface channel-interface
(export current-input-channel
current-output-channel
current-error-channel
input-port->channel
output-port->channel
open-input-file-channel
open-output-file-channel
input-channel->port
output-channel->port
close-input-channel
close-output-channel
channel-ready?
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channel-read-block
channel-write-block
channel-abort
add-pending-channel
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))
(define external-call-interface
(export ; called from outside
s48-define-exported-binding
s48-get-imported-binding
s48-setup-external-exception
s48-resetup-external-exception
; called on startup
s48-warn-about-undefined-imported-bindings
install-shared-bindings!+gc
; for writing images
s48-cleaned-imported-bindings
s48-exported-bindings
))
(define-interface interpreter-internal-interface
(export ((define-primitive define-consing-primitive) :syntax)
((raise-exception raise-exception*) :syntax)
raise
push-exception-continuation!
any-> string-> fixnum-> boolean->
input-type no-coercion
no-result
return
return-fixnum
return-boolean
return-unspecific
continue
continue-with-value
code-byte
val set-val!
code-pointer set-code-pointer!
current-thread
disable-interrupts!
enable-interrupts!
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s48-set-os-signals
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s48-*callback-return-stack-block*
))
(define-interface interpreter-interface
(export initialize-interpreter+gc
clear-registers
interpret
s48-set-extension-value!
s48-note-event
s48-*extension-value*
s48-*pending-events?*
s48-*pending-interrupt?*
))
; What the external world can call. Because of C's flat namespace we have
; added s48_ to the front of each of these.
(define-interface vm-interface
(export s48-initialize-vm
s48-call-startup-procedure
s48-restart
s48-set-extension-value!
s48-*extension-value*
s48-note-event
s48-*pending-events?*
s48-*pending-interrupt?*
s48-disable-interrupts!
s48-enable-interrupts!
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s48-set-os-signals
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s48-define-exported-binding
s48-get-imported-binding
s48-*callback-return-stack-block*
; used for raising exceptions in external code
s48-setup-external-exception
s48-resetup-external-exception
s48-push
s48-stack-ref s48-stack-set!
; called when writing an image
s48-copy-symbol-table
s48-mark-traced-channels-closed!
s48-cleaned-imported-bindings
s48-exported-bindings
; called when resuming an image
s48-warn-about-undefined-imported-bindings
; for C code that wants to manipulate channels
s48-close-channel
s48-add-channel
s48-set-channel-os-index
))