1 | (in-package :extensions) |
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2 | |
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3 | ;;; TODO: submit upstream patch to <cffi/src/cffi-abcl.lisp> for removal |
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4 | (defun write-class (class-bytes pathname) |
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5 | "Write the Java byte[] array CLASS-BYTES to PATHNAME." |
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6 | (with-open-file (stream pathname |
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7 | :direction :output |
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8 | :element-type '(unsigned-byte 8)) |
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9 | (dotimes (i (java:jarray-length class-bytes)) |
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10 | (write-byte (java:jarray-ref class-bytes i) stream)))) |
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11 | |
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12 | (defun read-class (pathname) |
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13 | "Read the file at PATHNAME as a Java byte[] array" |
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14 | (with-open-file (stream pathname |
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15 | :direction :input |
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16 | :element-type '(unsigned-byte 8)) |
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17 | (let* ((length |
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18 | (file-length stream)) |
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19 | (array |
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20 | (make-array length :element-type '(unsigned-byte 8)))) |
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21 | (read-sequence array stream :end length) |
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22 | (java:jnew-array-from-array "byte" array)))) |
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23 | |
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24 | (export '(write-class |
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25 | read-class) |
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26 | :extensions) |
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27 | |
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28 | ;;; Determining the underlying unix file descriptor depends on |
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29 | ;;; navigating private member structures dependent on the hosting |
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30 | ;;; JVMs wrapping of native socket. The JAVA package currently does |
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31 | ;;; not have a means for such aggressive intropsection, so we add it |
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32 | ;;; as a utility here |
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33 | ;;; |
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34 | ;;; TODO test under :msdog |
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35 | ;;; TODO Should be in socket.lisp |
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36 | (defun stream-unix-fd (stream) |
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37 | "Return the integer of the underlying unix file descriptor for STREAM |
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38 | |
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39 | Added by ABCL-INTROSPECT." |
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40 | (check-type stream 'system::socket-stream) |
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41 | (flet ((get-java-fields (object fields) ;; Thanks to Cyrus Harmon |
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42 | (reduce (lambda (x y) |
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43 | (jss:get-java-field x y t)) |
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44 | fields |
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45 | :initial-value object)) |
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46 | (jvm-version () |
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47 | (read |
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48 | (make-string-input-stream |
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49 | (java:jstatic "getProperty" "java.lang.System" |
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50 | "java.specification.version"))))) |
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51 | (ignore-errors |
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52 | (get-java-fields (java:jcall "getWrappedInputStream" ;; TODO: define this as a constant |
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53 | (two-way-stream-input-stream stream)) |
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54 | (if (< (jvm-version) 14) |
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55 | '("in" "ch" "fdVal") |
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56 | '("in" "this$0" "sc" "fd" "fd")))))) |
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57 | |
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58 | (export '(stream-unix-fd) :extensions) |
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