unix: Now I see, all too clearly, the error of my ways

extra/io/unix/backend/backend.factor

@@ -1,7 +1,7 @@
 ! Copyright (C) 2004, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: alien generic assocs kernel kernel.private math
-io.nonblocking sequences strings structs sbufs threads unix.ffi unix
+io.nonblocking sequences strings structs sbufs threads unix
 vectors io.buffers io.backend io.encodings math.parser
 continuations system libc qualified namespaces io.timeouts
 io.encodings.utf8 accessors ;

extra/io/unix/files/files.factor

@@ -45,7 +45,7 @@ M: unix (file-appender) ( path -- stream )
 
 M: unix touch-file ( path -- )
     normalize-path
-    dup exists? [ f utime ] [
+    dup exists? [ touch ] [
         touch-mode file-mode open close
     ] if ;
 

extra/io/unix/kqueue/kqueue.factor

@@ -3,7 +3,7 @@
 USING: alien.c-types kernel math math.bitfields namespaces
 locals accessors combinators threads vectors hashtables
 sequences assocs continuations sets
-unix.ffi unix unix.time unix.kqueue unix.process
+unix unix.time unix.kqueue unix.process
 io.nonblocking io.unix.backend io.launcher io.unix.launcher
 io.monitors ;
 IN: io.unix.kqueue

extra/io/unix/sockets/sockets.factor

@@ -5,7 +5,7 @@ namespaces threads sequences byte-arrays io.nonblocking
 io.binary io.unix.backend io.streams.duplex io.sockets.impl
 io.backend io.files io.files.private io.encodings.utf8
 math.parser continuations libc combinators system accessors
-qualified unix.ffi unix ;
+qualified unix ;
 
 EXCLUDE: io => read write close ;
 EXCLUDE: io.sockets => accept ;

extra/unix/ffi/ffi.factor

@@ -1,15 +0,0 @@
-
-USING: alien.syntax ;
-
-IN: unix.ffi
-
-! FUNCTION: int open ( char* path, int flags, int prot ) ;
-
-! C-STRUCT: utimbuf
-!     { "time_t" "actime"  }
-!     { "time_t" "modtime" } ;
-
-! FUNCTION: int utime ( char* path, utimebuf* buf ) ;
-
-! FUNCTION: int err_no ( ) ;
-! FUNCTION: char* strerror ( int errno ) ;

extra/unix/system-call/system-call.factor

@@ -1,15 +0,0 @@
-
-USING: kernel continuations sequences math accessors inference macros
-       fry arrays.lib unix.ffi ;
-
-IN: unix.system-call
-
-ERROR: unix-system-call-error word args message ;
-
-MACRO: unix-system-call ( quot -- )
-    [ ] [ infer in>> ] [ first ] tri
-   '[
-        [ @ dup 0 < [ dup throw ] [ ] if ]
-        [ drop , narray , swap err_no strerror unix-system-call-error ]
-        recover
-    ] ;

extra/unix/unix.factor

@@ -1,11 +1,11 @@
 ! Copyright (C) 2005, 2007 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 
-USING: alien alien.c-types alien.syntax kernel libc structs
+USING: alien alien.c-types alien.syntax kernel libc structs sequences
+       continuations
        math namespaces system combinators vocabs.loader qualified
-       unix.ffi unix.types unix.system-call ;
-
-QUALIFIED: unix.ffi
+       accessors inference macros fry arrays.lib 
+       unix.types ;
 
 IN: unix
 
@@ -46,9 +46,22 @@ C-STRUCT: passwd
     { "time_t" "pw_expire" }
     { "int"    "pw_fields" } ;
 
-! ! ! Unix functions
 LIBRARY: factor
+
 FUNCTION: void clear_err_no ( ) ;
+FUNCTION: int err_no ( ) ;
+
+ERROR: unix-system-call-error word args message ;
+
+DEFER: strerror
+
+MACRO: unix-system-call ( quot -- )
+    [ ] [ infer in>> ] [ first ] tri
+   '[
+        [ @ dup 0 < [ dup throw ] [ ] if ]
+        [ drop , narray , swap err_no strerror unix-system-call-error ]
+        recover
+    ] ;
 
 LIBRARY: libc
 
@@ -100,9 +113,23 @@ FUNCTION: int munmap ( void* addr, size_t len ) ;
 FUNCTION: uint ntohl ( uint n ) ;
 FUNCTION: ushort ntohs ( ushort n ) ;
 
-: open ( path flags prot -- int ) [ unix.ffi:open ] unix-system-call ;
+FUNCTION: int open ( char* path, int flags, int prot ) ;
 
-: utime ( path buf -- ) [ unix.ffi:utime ] unix-system-call drop ;
+: open-file ( path flags mode -- fd ) [ open ] unix-system-call ;
+
+C-STRUCT: utimbuf
+    { "time_t" "actime"  }
+    { "time_t" "modtime" } ;
+
+FUNCTION: int utime ( char* path, utimebuf* buf ) ;
+
+: touch ( filename -- ) f [ utime ] unix-system-call drop ;
+
+: change-file-times ( filename access modification -- )
+  "utimebuf" <c-object>
+  tuck set-utimbuf-modtime
+  tuck set-utimbuf-actime
+  [ utime ] unix-system-call drop ;
 
 FUNCTION: int pclose ( void* file ) ;
 FUNCTION: int pipe ( int* filedes ) ;
@@ -124,6 +151,7 @@ FUNCTION: int setreuid ( uid_t ruid, uid_t euid ) ;
 FUNCTION: int setsockopt ( int s, int level, int optname, void* optval, socklen_t optlen ) ;
 FUNCTION: int setuid ( uid_t uid ) ;
 FUNCTION: int socket ( int domain, int type, int protocol ) ;
+FUNCTION: char* strerror ( int errno ) ;
 FUNCTION: int symlink ( char* path1, char* path2 ) ;
 FUNCTION: int system ( char* command ) ;
 FUNCTION: int unlink ( char* path ) ;