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Diffstat (limited to 'third_party/lisp/sclf/sysproc.lisp')
| -rw-r--r-- | third_party/lisp/sclf/sysproc.lisp | 295 |
1 files changed, 295 insertions, 0 deletions
diff --git a/third_party/lisp/sclf/sysproc.lisp b/third_party/lisp/sclf/sysproc.lisp new file mode 100644 index 0000000000..1dd559ebe3 --- /dev/null +++ b/third_party/lisp/sclf/sysproc.lisp @@ -0,0 +1,295 @@ +;;; sysproc.lisp --- system processes + +;;; Copyright (C) 2008, 2009, 2010 by Walter C. Pelissero + +;;; Author: Walter C. Pelissero <walter@pelissero.de> +;;; Project: sclf + +#+cmu (ext:file-comment "$Module: sysproc.lisp $") + +;;; This library is free software; you can redistribute it and/or +;;; modify it under the terms of the GNU Lesser General Public License +;;; as published by the Free Software Foundation; either version 2.1 +;;; of the License, or (at your option) any later version. +;;; This library is distributed in the hope that it will be useful, +;;; but WITHOUT ANY WARRANTY; without even the implied warranty of +;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +;;; Lesser General Public License for more details. +;;; You should have received a copy of the GNU Lesser General Public +;;; License along with this library; if not, write to the Free +;;; Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA +;;; 02111-1307 USA + +(in-package :sclf) + +(defvar *bourne-shell* "/bin/sh") + +(defvar *run-verbose* nil + "If true system commands are displayed before execution and standard +error is not discarded.") + +;; +;; SIGINFO is missing in both CMUCL and SBCL +;; + +#+cmu +(eval-when (:compile-toplevel :load-toplevel :execute) + (defconstant unix::siginfo 29) + (defvar siginfo (unix::make-unix-signal :siginfo unix::siginfo "Information")) + (export '(unix::siginfo) "UNIX") + (pushnew siginfo unix::*unix-signals*)) + +#+sbcl (in-package :sb-posix) +#+sbcl +(eval-when (:execute :compile-toplevel :load-toplevel) + (unless (find-symbol "SIGINFO" :sb-posix) + (sb-ext:with-unlocked-packages (:sb-posix) + (defvar siginfo 29) + (export '(SIGINFO))))) +#+sbcl (in-package :sclf) + +(defun signal-number (signal-name) + (ecase signal-name + ((:abrt :abort) + #+cmu unix:sigabrt + #+sbcl sb-posix:sigabrt) + ((:alrm :alarm) + #+cmu unix:sigalrm + #+sbcl sb-posix:sigalrm) + ((:bus :bus-error) + #+cmu unix:sigbus + #+sbcl sb-posix:sigbus) + ((:chld :child) + #+cmu unix:sigchld + #+sbcl sb-posix:sigchld) + ((:cont :continue) + #+cmu unix:sigcont + #+sbcl sb-posix:sigcont) + #+freebsd((:emt :emulate-instruction) + #+cmu unix:sigemt + #+sbcl sb-posix:sigemt) + ((:fpe :floating-point-exception) + #+cmu unix:sigfpe + #+sbcl sb-posix:sigfpe) + ((:hup :hangup) + #+cmu unix:sighup + #+sbcl sb-posix:sighup) + ((:ill :illegal :illegal-instruction) + #+cmu unix:sigill + #+sbcl sb-posix:sigill) + ((:int :interrupt) + #+cmu unix:sigint + #+sbcl sb-posix:sigint) + ((:io :input-output) + #+cmu unix:sigio + #+sbcl sb-posix:sigio) + (:kill + #+cmu unix:sigkill + #+sbcl sb-posix:sigkill) + ((:pipe :broke-pipe) + #+cmu unix:sigpipe + #+sbcl sb-posix:sigpipe) + ((:prof :profiler) + #+cmu unix:sigprof + #+sbcl sb-posix:sigprof) + (:quit + #+cmu unix:sigquit + #+sbcl sb-posix:sigquit) + ((:segv :segmentation-violation) + #+cmu unix:sigsegv + #+sbcl sb-posix:sigsegv) + (:stop + #+cmu unix:sigstop + #+sbcl sb-posix:sigstop) + ((:sys :system-call) + #+cmu unix:sigsys + #+sbcl sb-posix:sigsys) + ((:term :terminate) + #+cmu unix:sigterm + #+sbcl sb-posix:sigterm) + ((:trap) + #+cmu unix:sigtrap + #+sbcl sb-posix:sigtrap) + ((:tstp :terminal-stop) + #+cmu unix:sigtstp + #+sbcl sb-posix:sigtstp) + ((:ttin :tty-input) + #+cmu unix:sigttin + #+sbcl sb-posix:sigttin) + ((:ttou :tty-output) + #+cmu unix:sigttou + #+sbcl sb-posix:sigttou) + ((:urg :urgent) + #+cmu unix:sigurg + #+sbcl sb-posix:sigurg) + ((:usr1 :user1) + #+cmu unix:sigusr1 + #+sbcl sb-posix:sigusr1) + ((:usr2 :user2) + #+cmu unix:sigusr2 + #+sbcl sb-posix:sigusr2) + ((:vtalrm :virtual-timer-alarm) + #+cmu unix:sigvtalrm + #+sbcl sb-posix:sigvtalrm) + ((:winch :window-change :window-size-change) + #+cmu unix:sigwinch + #+sbcl sb-posix:sigwinch) + ((:xcpu :exceeded-cpu) + #+cmu unix:sigxcpu + #+sbcl sb-posix:sigxcpu) + ((:xfsz :exceeded-file-size) + #+cmu unix:sigxfsz + #+sbcl sb-posix:sigxfsz) + ;; oddly this is not defined by neither CMUCL nor SBCL + (:info 29))) + +(defun sysproc-kill (process signal) + (when (keywordp signal) + (setf signal (signal-number signal))) + #+cmu (ext:process-kill process signal) + #+sbcl (sb-ext:process-kill process signal) + #-(or sbcl cmu) (error "Don't know how to kill a process")) + +(defun sysproc-exit-code (process) + #+cmu (ext:process-exit-code process) + #+sbcl (sb-ext:process-exit-code process) + #-(or sbcl cmu) (error "Don't know how to get a process exit code")) + +(defun sysproc-wait (process) + #+cmu (ext:process-wait process) + #+sbcl (sb-ext:process-wait process) + #-(or sbcl cmu) (error "Don't know how to wait a process")) + +(defun sysproc-input (process) + #+cmu (ext:process-input process) + #+sbcl (sb-ext:process-input process) + #-(or sbcl cmu) (error "Don't know how to get the process input")) + +(defun sysproc-output (process) + #+cmu (ext:process-output process) + #+sbcl (sb-ext:process-output process) + #-(or sbcl cmu) (error "Don't know how to get the process output")) + +(defun sysproc-alive-p (process) + #+cmu (ext:process-alive-p process) + #+sbcl (sb-ext:process-alive-p process) + #-(or sbcl cmu) (error "Don't know how to test wether a process might be running")) + +(defun sysproc-pid (process) + #+cmu (ext:process-pid process) + #+sbcl (sb-ext:process-pid process) + #-(or sbcl cmu) (error "Don't know how to get the id of a process")) + +(defun sysproc-p (thing) + #+sbcl (sb-ext:process-p thing) + #+cmu (ext:process-p thing) + #-(or sbcl cmu) (error "Don't know how to figure out whether something is a system process")) + +(defun run-program (program arguments &key (wait t) pty input output error) + "Run PROGRAM with ARGUMENTS (a list) and return a process object." + ;; convert arguments to strings + (setf arguments + (mapcar #'(lambda (item) + (typecase item + (string item) + (pathname (native-namestring item)) + (t (format nil "~A" item)))) + arguments)) + (when *run-verbose* + (unless error + (setf error t)) + (format t "~&; run-pipe ~A~{ ~S~}~%" program arguments)) + #+cmu (ext:run-program program arguments + :wait wait + :pty pty + :input input + :output output + :error (or error *run-verbose*)) + #+sbcl (sb-ext:run-program program arguments + :search t + :wait wait + :pty pty + :input input + :output output + :error (or error *run-verbose*)) + #-(or sbcl cmu) + (error "Unsupported Lisp system.")) + +(defun run-pipe (direction program arguments &key error) + "Run PROGRAM with a list of ARGUMENTS and according to DIRECTION +return the input and output streams and process object of that +process." + (be process (run-program program arguments + :wait nil + :pty nil + :input (when (member direction '(:output :input-output :io)) + :stream) + :output (when (member direction '(:input :input-output :io)) + :stream) + :error error) + (values (sysproc-output process) + (sysproc-input process) + process)) + #-(or sbcl cmu) + (error "Unsupported Lisp system.")) + +(defun exit-code (process) + (sysproc-wait process) + (sysproc-exit-code process)) + +(defun run-shell-command (fmt &rest args) + "Run a Bourne Shell command. Return the exit status of the command." + (run-program *bourne-shell* (list "-c" (apply #'format nil fmt args)))) + +(defun run-async-shell-command (fmt &rest args) + "Run a Bourne Shell command asynchronously. Return a process +object if provided by your Lisp implementation." + (run-program *bourne-shell* (list "-c" (apply #'format nil fmt args)) + :wait nil)) + +(defmacro with-open-pipe ((in out program arguments &key (process (gensym)) error pty) &body forms) + "Run BODY with IN and OUT bound respectively to an input and an +output stream connected to a system process created by running PROGRAM +with ARGUMENTS. If IN or OUT are NIL, then don't create that stream." + (with-gensyms (prg args) + `(be* ,prg ,program + ,args ,arguments + ,process (run-program ,prg ,args + :output ,(case in + ((t nil) in) + (t :stream)) + :input ,(case out + ((t nil) out) + (t :stream)) + :wait nil + :pty ,pty + ,@(when error `(:error ,error))) + (if ,process + (let (,@(case in + ((t nil)) + (t `((,in (sysproc-output ,process))))) + ,@(case out + ((t nil)) + (t `((,out (sysproc-input ,process)))))) + (unwind-protect + (progn + ,@forms) + ,@(case in + ((t nil)) + (t `((close ,in)))) + ,@(case out + ((t nil)) + (t `((close ,out)))) + (when (sysproc-alive-p ,process) + (sysproc-kill ,process :term)))) + (error "unable to run ~A~{ ~A~}." ,prg ,args))))) + + +(defun sysproc-set-signal-callback (signal handler) + "Arrange HANDLER function to be called when receiving the system +signal SIGNAL." + (when (keywordp signal) + (setf signal (signal-number signal))) + #+cmu (system:enable-interrupt signal handler) + #+sbcl (sb-sys:enable-interrupt signal handler) + #-(or cmu sbcl) (error "Don't know how to set a system signal callback.")) |