\f
;;;; hacking the Unix environment
-(def-alien-routine ("getenv" posix-getenv) c-string
+(define-alien-routine ("getenv" posix-getenv) c-string
"Return the \"value\" part of the environment string \"name=value\" which
corresponds to NAME, or NIL if there is none."
(name c-string))
;;; is not extreme enough, since it doesn't need to be blindingly
;;; fast: we can just implement those functions in C as a wrapper
;;; layer.
-(def-alien-type fd-mask unsigned-long)
+(define-alien-type fd-mask unsigned-long)
(eval-when (:compile-toplevel :load-toplevel :execute)
(defconstant fd-setsize 1024))
-(def-alien-type nil
+(define-alien-type nil
(struct fd-set
(fds-bits (array fd-mask #.(/ fd-setsize 32)))))
;; A time value that is accurate to the nearest
;; microsecond but also has a range of years.
-(def-alien-type nil
+(define-alien-type nil
(struct timeval
(tv-sec time-t) ; seconds
(tv-usec time-t))) ; and microseconds
(defconstant rusage_children -1) ; terminated child processes
(defconstant rusage_both -2)
-(def-alien-type nil
+(define-alien-type nil
(struct rusage
(ru-utime (struct timeval)) ; user time used
(ru-stime (struct timeval)) ; system time used.
(void-syscall ("exit" int) code))
;;; Return the process id of the current process.
-(def-alien-routine ("getpid" unix-getpid) int)
+(define-alien-routine ("getpid" unix-getpid) int)
;;; Return the real user-id associated with the current process.
-(def-alien-routine ("getuid" unix-getuid) int)
+(define-alien-routine ("getuid" unix-getuid) int)
;;; Invoke readlink(2) on the file name specified by PATH. Return
;;; (VALUES LINKSTRING NIL) on success, or (VALUES NIL ERRNO) on
\f
;;;; sys/select.h
-(defmacro unix-fast-select (num-descriptors
- read-fds write-fds exception-fds
- timeout-secs &optional (timeout-usecs 0))
- #!+sb-doc
- "Perform the UNIX select(2) system call."
- ;; FIXME: These DECLAREs don't belong at macroexpansion time. They
- ;; should be done at runtime instead. Perhaps we could just redo
- ;; UNIX-FAST-SELECT as an inline function, and then all the
- ;; declarations would work nicely.
- #|
+;;;; FIXME: Why have both UNIX-SELECT and UNIX-FAST-SELECT?
+
+;;; Perform the UNIX select(2) system call.
+(declaim (inline unix-fast-select)) ; (used to be a macro in CMU CL)
+(defun unix-fast-select (num-descriptors
+ read-fds write-fds exception-fds
+ timeout-secs &optional (timeout-usecs 0))
(declare (type (integer 0 #.fd-setsize) num-descriptors)
(type (or (alien (* (struct fd-set))) null)
read-fds write-fds exception-fds)
(type (or null (unsigned-byte 31)) timeout-secs)
(type (unsigned-byte 31) timeout-usecs))
- |#
;; FIXME: CMU CL had
- ;; (optimize (speed 3) (safety 0) (inhibit-warnings 3))
- ;; in the declarations above. If they're important, they should
- ;; be in a declaration inside the LET expansion, not in the
- ;; macro compile-time code.
- `(let ((timeout-secs ,timeout-secs))
- (with-alien ((tv (struct timeval)))
- (when timeout-secs
- (setf (slot tv 'tv-sec) timeout-secs)
- (setf (slot tv 'tv-usec) ,timeout-usecs))
- (int-syscall ("select" int (* (struct fd-set)) (* (struct fd-set))
- (* (struct fd-set)) (* (struct timeval)))
- ,num-descriptors ,read-fds ,write-fds ,exception-fds
- (if timeout-secs (alien-sap (addr tv)) (int-sap 0))))))
+ ;; (declare (optimize (speed 3) (safety 0) (inhibit-warnings 3)))
+ ;; here. Is that important for SBCL? If so, why? Profiling might tell us..
+ (with-alien ((tv (struct timeval)))
+ (when timeout-secs
+ (setf (slot tv 'tv-sec) timeout-secs)
+ (setf (slot tv 'tv-usec) timeout-usecs))
+ (int-syscall ("select" int (* (struct fd-set)) (* (struct fd-set))
+ (* (struct fd-set)) (* (struct timeval)))
+ num-descriptors read-fds write-fds exception-fds
+ (if timeout-secs (alien-sap (addr tv)) (int-sap 0)))))
;;; UNIX-SELECT accepts sets of file descriptors and waits for an event
;;; to happen on one of them or to time out.
;;; st_size is a long, not an off-t, because off-t is a 64-bit
;;; quantity on Alpha. And FIXME: "No one would want a file length
;;; longer than 32 bits anyway, right?":-|
-(def-alien-type nil
+(define-alien-type nil
(struct wrapped_stat
(st-dev unsigned-long) ; would be dev-t in a real stat
(st-ino ino-t)
;; the POSIX.4 structure for a time value. This is like a "struct
;; timeval" but has nanoseconds instead of microseconds.
-(def-alien-type nil
+(define-alien-type nil
(struct timespec
(tv-sec long) ; seconds
(tv-nsec long))) ; nanoseconds
;; used by other time functions
-(def-alien-type nil
+(define-alien-type nil
(struct tm
(tm-sec int) ; Seconds. [0-60] (1 leap second)
(tm-min int) ; Minutes. [0-59]
(tm-gmtoff long) ; Seconds east of UTC.
(tm-zone c-string))) ; Timezone abbreviation.
-(def-alien-routine get-timezone sb!c-call:void
+(define-alien-routine get-timezone sb!c-call:void
(when sb!c-call:long :in)
(minutes-west sb!c-call:int :out)
(daylight-savings-p sb!alien:boolean :out))
;;; Structure crudely representing a timezone. KLUDGE: This is
;;; obsolete and should never be used.
-(def-alien-type nil
+(define-alien-type nil
(struct timezone
(tz-minuteswest int) ; minutes west of Greenwich
(tz-dsttime int))) ; type of dst correction
(defun unix-resolve-links (pathname)
(declare (type simple-string pathname))
(aver (not (relative-unix-pathname? pathname)))
- (/show "entering UNIX-RESOLVE-LINKS")
+ (/noshow "entering UNIX-RESOLVE-LINKS")
(loop with previous-pathnames = nil do
- (/show pathname previous-pathnames)
+ (/noshow pathname previous-pathnames)
(let ((link (unix-readlink pathname)))
- (/show link)
+ (/noshow link)
;; Unlike the old CMU CL code, we handle a broken symlink by
;; returning the link itself. That way, CL:TRUENAME on a
;; broken link returns the link itself, so that CL:DIRECTORY
pathname
:from-end t)))
(dir (subseq pathname 0 dir-len)))
- (/show dir)
+ (/noshow dir)
(concatenate 'string dir link))
link))))
(if (unix-file-kind new-pathname)