0.8.0.73:

[sbcl.git] / src / code / unix.lisp

diff --git a/src/code/unix.lisp b/src/code/unix.lisp
index a255979..d96189e 100644 (file)
--- a/src/code/unix.lisp
+++ b/src/code/unix.lisp
@@ -204,22 +204,22 @@
 (defconstant l_incr 1) ; to increment the file pointer
 (defconstant l_xtnd 2) ; to extend the file size
 
-;;; Accept a file descriptor and move the file pointer ahead
-;;; a certain offset for that file. WHENCE can be any of the following:
-;;;  L_SET     Set the file pointer.
-;;;  L_INCR    Increment the file pointer.
-;;;  L_XTND    Extend the file size.
+;;; Is a stream interactive?
+(defun unix-isatty (fd)
+  (declare (type unix-fd fd))
+  (int-syscall ("isatty" int) fd))
+
 (defun unix-lseek (fd offset whence)
+  "Unix-lseek accepts a file descriptor and moves the file pointer by 
+   OFFSET octets.  Whence can be any of the following:
+
+   L_SET        Set the file pointer.
+   L_INCR       Increment the file pointer.
+   L_XTND       Extend the file size.
+  "
   (declare (type unix-fd fd)
-          (type (unsigned-byte 32) offset)
           (type (integer 0 2) whence))
-  #!-(and x86 bsd)
-  (int-syscall ("lseek" int off-t int) fd offset whence)
-  ;; Need a 64-bit return value type for this. TBD. For now,
-  ;; don't use this with any 2G+ partitions.
-  #!+(and x86 bsd)
-  (int-syscall ("lseek" int unsigned-long unsigned-long int)
-              fd offset 0 whence))
+  (int-syscall ("lseek" int off-t int) fd offset whence))
 
 ;;; UNIX-READ accepts a file descriptor, a buffer, and the length to read.
 ;;; It attempts to read len bytes from the device associated with fd
@@ -391,6 +391,10 @@
   (declare (type unix-fd fd))
   (void-syscall ("fsync" int) fd))
 \f
+
+(defun unix-setsid ()
+  (int-syscall ("setsid")))
+
 ;;;; sys/ioctl.h
 
 ;;; UNIX-IOCTL performs a variety of operations on open i/o
@@ -398,8 +402,8 @@
 ;;; information.
 (defun unix-ioctl (fd cmd arg)
   (declare (type unix-fd fd)
-          (type (unsigned-byte 32) cmd))
-  (void-syscall ("ioctl" int unsigned-int (* char)) fd cmd arg))
+          (type (signed-byte 32) cmd))
+  (void-syscall ("ioctl" int int (* char)) fd cmd arg))
 \f
 ;;;; sys/resource.h
 
@@ -751,13 +755,11 @@
                        (slot (slot itvo 'it-value) 'tv-usec))
                which (alien-sap (addr itvn))(alien-sap (addr itvo))))))
 
-(defmacro with-timeout (expires &body body)
+(defmacro sb!ext::with-timeout (expires &body body)
   "Execute the body, interrupting it with a SIGALRM after at least
 EXPIRES seconds have passed.  Uses Unix setitimer(), restoring any
 previous timer after the body has finished executing"
-  (let ((saved-seconds (gensym "SAVED-SECONDS"))
-       (saved-useconds (gensym "SAVED-USECONDS"))
-       (s (gensym "S")) (u (gensym "U")))
+  (with-unique-names (saved-seconds saved-useconds s u)
     `(let (- ,saved-seconds ,saved-useconds)
       (multiple-value-setq (- - - ,saved-seconds ,saved-useconds)
        (unix-getitimer :real))