diff options
Diffstat (limited to 'dev')
| -rw-r--r-- | dev/backtrace.lisp | 127 | ||||
| -rw-r--r-- | dev/fallback.lisp | 10 | ||||
| -rw-r--r-- | dev/map-backtrace.lisp | 105 | ||||
| -rw-r--r-- | dev/mucking.lisp | 75 | ||||
| -rw-r--r-- | dev/packages.lisp | 13 | ||||
| -rw-r--r-- | dev/utilities.lisp | 104 |
6 files changed, 434 insertions, 0 deletions
diff --git a/dev/backtrace.lisp b/dev/backtrace.lisp new file mode 100644 index 0000000000..aa3951e30f --- /dev/null +++ b/dev/backtrace.lisp @@ -0,0 +1,127 @@ +(in-package #:trivial-backtrace) + +(defun print-condition (condition stream) + "Print `condition` to `stream` using the pretty printer." + (format + stream + "~@<An unhandled error condition has been signalled:~3I ~a~I~:@>~%~%" + condition)) + +(defun print-backtrace (error &key (output *debug-io*) + (if-exists :append) + (verbose nil)) + "Send a backtrace for the error `error` to `output`. + +The keywords arguments are: + + * :output - where to send the output. This can be: + + * a string (which is assumed to designate a pathname) + * an open stream + * nil to indicate that the backtrace information should be + returned as a string + + * if-exists - what to do if output designates a pathname and + the pathname already exists. Defaults to :append. + + * verbose - if true, then a message about the backtrace is sent + to \\*terminal-io\\*. Defaults to `nil`. + +If the `output` is nil, the returns the backtrace output as a +string. Otherwise, returns nil. +" + (when verbose + (print-condition error *terminal-io*)) + (multiple-value-bind (stream close?) + (typecase output + (null (values (make-string-output-stream) nil)) + (string (values (open output :if-exists if-exists + :if-does-not-exist :create + :direction :output) t)) + (stream (values output nil))) + (unwind-protect + (progn + (format stream "~&Date/time: ~a" (date-time-string)) + (print-condition error stream) + (terpri stream) + (print-backtrace-to-stream stream) + (terpri stream) + (when (typep stream 'string-stream) + (get-output-stream-string stream))) + ;; cleanup + (when close? + (close stream))))) + +#+(or mcl ccl) +(defun print-backtrace-to-stream (stream) + (let ((*debug-io* stream)) + (ccl:print-call-history :detailed-p nil))) + +#+allegro +(defun print-backtrace-to-stream (stream) + (with-standard-io-syntax + (let ((*print-readably* nil) + (*print-miser-width* 40) + (*print-pretty* t) + (tpl:*zoom-print-circle* t) + (tpl:*zoom-print-level* nil) + (tpl:*zoom-print-length* nil)) + (cl:ignore-errors + (let ((*terminal-io* stream) + (*standard-output* stream)) + (tpl:do-command "zoom" + :from-read-eval-print-loop nil + :count t + :all t)))))) + +#+lispworks +(defun print-backtrace-to-stream (stream) + (let ((dbg::*debugger-stack* + (dbg::grab-stack nil :how-many most-positive-fixnum)) + (*debug-io* stream) + (dbg:*debug-print-level* nil) + (dbg:*debug-print-length* nil)) + (dbg:bug-backtrace nil))) + +#+sbcl +;; determine how we're going to access the backtrace in the next +;; function +(eval-when (:compile-toplevel :load-toplevel :execute) + (when (find-symbol "*DEBUG-PRINT-VARIABLE-ALIST*" :sb-debug) + (pushnew :sbcl-debug-print-variable-alist *features*))) + +#+sbcl +(defun print-backtrace-to-stream (stream) + (let (#+:sbcl-debug-print-variable-alist + (sb-debug:*debug-print-variable-alist* + (list* '(*print-level* . nil) + '(*print-length* . nil) + sb-debug:*debug-print-variable-alist*)) + #-:sbcl-debug-print-variable-alist + (sb-debug:*debug-print-level* nil) + #-:sbcl-debug-print-variable-alist + (sb-debug:*debug-print-length* nil)) + (sb-debug:backtrace most-positive-fixnum stream))) + +#+clisp +(defun print-backtrace-to-stream (stream) + (system::print-backtrace :out stream)) + +#+(or cmucl scl) +(defun print-backtrace-to-stream (stream) + (let ((debug:*debug-print-level* nil) + (debug:*debug-print-length* nil)) + (debug:backtrace most-positive-fixnum stream))) + + +;; must be after the defun above or the docstring may be wiped out +(setf (documentation 'print-backtrace-to-stream 'function) + "Send a backtrace of the current error to stream. + +Stream is assumed to be an open writable file stream or a +string-output-stream. Note that `print-backtrace-to-stream` +will print a backtrace for whatever the Lisp deems to be the +*current* error. +") + + diff --git a/dev/fallback.lisp b/dev/fallback.lisp new file mode 100644 index 0000000000..40a5219824 --- /dev/null +++ b/dev/fallback.lisp @@ -0,0 +1,10 @@ +(in-package #:trivial-backtrace) + +(eval-when (:compile-toplevel :load-toplevel :execute) + (unless (fboundp 'map-backtrace) + (defun map-backtrace (func) + (declare (ignore func)))) + + (unless (fboundp 'print-backtrace-to-stream) + (defun print-backtrace-to-stream (stream) + (format stream "~&backtrace output unavailable.~%")))) diff --git a/dev/map-backtrace.lisp b/dev/map-backtrace.lisp new file mode 100644 index 0000000000..43eddda475 --- /dev/null +++ b/dev/map-backtrace.lisp @@ -0,0 +1,105 @@ +(in-package #:trivial-backtrace) + +(defstruct frame + func + source-filename + source-pos + vars) + +(defstruct var + name + value) + +(defstruct pos-form-number + number) + +(defmethod print-object ((pos-form-number pos-form-number) stream) + (cond + (*print-readably* (call-next-method)) + (t + (format stream "f~A" (pos-form-number-number pos-form-number))))) + + +(defvar *trivial-backtrace-frame-print-specials* + '((*print-length* . 100) + (*print-level* . 20) + (*print-lines* . 5) + (*print-pretty* . t) + (*print-readably* . nil))) + +(defun print-frame (frame stream) + (format stream "~A:~@[~A:~] ~A: ~%" + (or (ignore-errors (translate-logical-pathname (frame-source-filename frame))) (frame-source-filename frame) "<unknown>") + (frame-source-pos frame) + (frame-func frame)) + (loop for var in (frame-vars frame) + do + (format stream " ~A = ~A~%" (var-name var) + (or (ignore-errors + (progv + (mapcar #'car *trivial-backtrace-frame-print-specials*) + (mapcar #'cdr *trivial-backtrace-frame-print-specials*) + (prin1-to-string + (var-value var)))) + "<error>")))) + +(defun map-backtrace (function) + (impl-map-backtrace function)) + +(defun print-map-backtrace (&optional (stream *debug-io*) &rest args) + (apply 'map-backtrace + (lambda (frame) + (print-frame frame stream)) args)) + +(defun backtrace-string (&rest args) + (with-output-to-string (stream) + (apply 'print-map-backtrace stream args))) + + +#+ccl +(defun impl-map-backtrace (func) + (ccl::map-call-frames (lambda (ptr) + (multiple-value-bind (lfun pc) + (ccl::cfp-lfun ptr) + (let ((source-note (ccl:function-source-note lfun))) + (funcall func + (make-frame :func (ccl::lfun-name lfun) + :source-filename (ccl:source-note-filename source-note) + :source-pos (let ((form-number (ccl:source-note-start-pos source-note))) + (when form-number (make-pos-form-number :number form-number))) + :vars (loop for (name . value) in (ccl::arguments-and-locals nil ptr lfun pc) + collect (make-var :name name :value value))))))))) + +#+sbcl +(defun impl-map-backtrace (func) + (loop for f = (or sb-debug:*stack-top-hint* (sb-di:top-frame)) then (sb-di:frame-down f) + while f + do (funcall func + (make-frame :func + (ignore-errors + (sb-di:debug-fun-name + (sb-di:frame-debug-fun f))) + :source-filename + (ignore-errors + (sb-di:debug-source-namestring (sb-di:code-location-debug-source (sb-di:frame-code-location f)))) + :source-pos + (ignore-errors ;;; XXX does not work + (let ((cloc (sb-di:frame-code-location f))) + (unless (sb-di:code-location-unknown-p cloc) + (format nil "tlf~Dfn~D" + (sb-di:code-location-toplevel-form-offset cloc) + (sb-di:code-location-form-number cloc))))) + :vars + (remove-if 'not + (map 'list (lambda(v) + (ignore-errors + (when (eq :valid + (sb-di:debug-var-validity v (sb-di:frame-code-location f))) + (make-var :name (sb-di:debug-var-symbol v) + :value (sb-di:debug-var-value v f))))) + (ignore-errors (sb-di::debug-fun-debug-vars (sb-di:frame-debug-fun f))))))))) + +#-(or ccl sbcl) +(defun impl-map-backtrace (func) + (declare (ignore func)) + (warn "unable to map backtrace for ~a" (lisp-implementation-type))) \ No newline at end of file diff --git a/dev/mucking.lisp b/dev/mucking.lisp new file mode 100644 index 0000000000..2be26a5a87 --- /dev/null +++ b/dev/mucking.lisp @@ -0,0 +1,75 @@ +(in-package #:metabang.gsn) + +#| +Need to account for different kinds of links + in gsn-nodes-from-json, need to return pairs of node and attributes + +hash-table for nodes to prevent duplicates +queue or stack for nodes to expand +hash-table for links (triples of A link B?) to handle duplicates +|# + +(defgeneric expand-node (context node) + ) + +(defgeneric find-neighbors (context node) + ) + +(defgeneric expand-node-p (context node) + ) + +(defgeneric add-node (context node) + ) + +(defgeneric add-link (context node neighbor direction) + ) + +(defgeneric update-node-data (context node data) + ) + +(defclass abstract-context () + ()) + +(defclass gsn-context (abstract-context) + ()) + +(defparameter +gsn-root+ "http://socialgraph.apis.google.com/") + +(defmethod expand-node ((context abstract-context) node) + (bind (((to from) (find-neighbors context node))) + (dolist (neighbor to) + (add-node context neighbor) + (add-link context node neighbor :to)) + (dolist (neighbor from) + (add-node context neighbor) + (add-link context node neighbor :from)))) + + + +(defmethod find-neighbors ((context gsn-context) node) + (bind (((result headers stream) + (http-get + (format nil "~alookup?edo=1&edi=1&pretty=1&q=~a" + +gsn-root+ node))) + json) + (unwind-protect + (setf json (json:decode-json stream)) + (close strea)) + (update-node-data context node json) + (list (gsn-nodes-from-json json :to) + (gsn-nodes-from-json json :from)))) + +(gsn-nodes-from-json x :from) + +(defun gsn-test (who) + (destructuring-bind (result headers stream) + (http-get + (format nil "http://socialgraph.apis.google.com/lookup?edo=1&edi=1&pretty=1&q=~a" who)) + (declare (ignore result headers)) + (json:decode-json stream))) + +(assoc :nodes_referenced + (assoc :nodes (gsn-test "TWITTER.COM/GWKING") :key #'first)) + + +(setf x (gsn-test "TWITTER.COM/GWKING")) diff --git a/dev/packages.lisp b/dev/packages.lisp new file mode 100644 index 0000000000..2da49d3d9b --- /dev/null +++ b/dev/packages.lisp @@ -0,0 +1,13 @@ +(in-package #:common-lisp-user) + +(defpackage #:trivial-backtrace + (:use #:common-lisp) + (:export #:print-backtrace + #:print-backtrace-to-stream + #:print-condition + #:*date-time-format* + + + #:backtrace-string + #:map-backtrace)) + diff --git a/dev/utilities.lisp b/dev/utilities.lisp new file mode 100644 index 0000000000..b0a249867a --- /dev/null +++ b/dev/utilities.lisp @@ -0,0 +1,104 @@ +(in-package #:trivial-backtrace) + +(defparameter *date-time-format* "%Y-%m-%d-%H:%M" + "The default format to use when printing dates and times. + +* %% - A '%' character +* %d - Day of the month as a decimal number [01-31] +* %e - Same as %d but does not print the leading 0 for days 1 through 9 + [unlike strftime[], does not print a leading space] +* %H - Hour based on a 24-hour clock as a decimal number [00-23] +*%I - Hour based on a 12-hour clock as a decimal number [01-12] +* %m - Month as a decimal number [01-12] +* %M - Minute as a decimal number [00-59] +* %S - Second as a decimal number [00-59] +* %w - Weekday as a decimal number [0-6], where Sunday is 0 +* %y - Year without century [00-99] +* %Y - Year with century [such as 1990] + +This code is borrowed from the `format-date` function in +[metatilities-base][].") + +;; modified from metatilities-base +(eval-when (:compile-toplevel :load-toplevel :execute) + (defmacro generate-time-part-function (part-name position) + (let ((function-name + (intern + (concatenate 'string + (symbol-name 'time) "-" (symbol-name part-name)) + :trivial-backtrace))) + `(eval-when (:compile-toplevel :load-toplevel :execute) + (defun ,function-name + (&optional (universal-time (get-universal-time)) + (time-zone nil)) + ,(format nil "Returns the ~(~A~) part of the given time." part-name) + (nth-value ,position + (apply #'decode-universal-time + universal-time time-zone)))))) + + (generate-time-part-function second 0) + (generate-time-part-function minute 1) + (generate-time-part-function hour 2) + (generate-time-part-function date 3) + (generate-time-part-function month 4) + (generate-time-part-function year 5) + (generate-time-part-function day-of-week 6) + (generate-time-part-function daylight-savings-time-p 7)) + +(defun date-time-string (&key (date/time (get-universal-time)) + (format *date-time-format*)) + (format-date format date/time nil)) + +(defun format-date (format date &optional stream time-zone) + (declare (ignore time-zone)) + (let ((format-length (length format))) + (format + stream "~{~A~}" + (loop for index = 0 then (1+ index) + while (< index format-length) collect + (let ((char (aref format index))) + (cond + ((char= #\% char) + (setf char (aref format (incf index))) + (cond + ;; %% - A '%' character + ((char= char #\%) #\%) + + ;; %d - Day of the month as a decimal number [01-31] + ((char= char #\d) (format nil "~2,'0D" (time-date date))) + + ;; %e - Same as %d but does not print the leading 0 for + ;; days 1 through 9. Unlike strftime, does not print a + ;; leading space + ((char= char #\e) (format nil "~D" (time-date date))) + + ;; %H - Hour based on a 24-hour clock as a decimal number [00-23] + ((char= char #\H) (format nil "~2,'0D" (time-hour date))) + + ;; %I - Hour based on a 12-hour clock as a decimal number [01-12] + ((char= char #\I) (format nil "~2,'0D" + (1+ (mod (time-hour date) 12)))) + + ;; %m - Month as a decimal number [01-12] + ((char= char #\m) (format nil "~2,'0D" (time-month date))) + + ;; %M - Minute as a decimal number [00-59] + ((char= char #\M) (format nil "~2,'0D" (time-minute date))) + + ;; %S - Second as a decimal number [00-59] + ((char= char #\S) (format nil "~2,'0D" (time-second date))) + + ;; %w - Weekday as a decimal number [0-6], where Sunday is 0 + ((char= char #\w) (format nil "~D" (time-day-of-week date))) + + ;; %y - Year without century [00-99] + ((char= char #\y) + (let ((year-string (format nil "~,2A" (time-year date)))) + (subseq year-string (- (length year-string) 2)))) + + ;; %Y - Year with century [such as 1990] + ((char= char #\Y) (format nil "~D" (time-year date))) + + (t + (error "Ouch - unknown formatter '%~c" char)))) + (t char))))))) |