add current-process-handle to io.launcher

make tools.disassembler work on windows

extra/io/launcher/launcher.factor

@@ -76,6 +76,8 @@ SYMBOL: +append-environment+
         { [ dup assoc? ] [ >hashtable ] }
     } cond ;
 
+HOOK: current-process-handle io-backend ( -- handle )
+
 HOOK: run-process* io-backend ( desc -- handle )
 
 : wait-for-process ( process -- status )

extra/io/unix/launcher/launcher.factor

@@ -4,7 +4,7 @@ USING: io io.backend io.launcher io.unix.backend io.unix.files
 io.nonblocking sequences kernel namespaces math system
  alien.c-types debugger continuations arrays assocs 
 combinators unix.process parser-combinators memoize 
-promises strings threads ;
+promises strings threads unix ;
 IN: io.unix.launcher
 
 ! Search unix first
@@ -71,6 +71,8 @@ MEMO: 'arguments' ( -- parser )
         io-error
     ] [ error. :c flush ] recover 1 exit ;
 
+M: unix-io current-process-handle ( -- handle ) getpid ;
+
 M: unix-io run-process* ( desc -- pid )
     [
         [ spawn-process ] [ ] with-fork <process>

extra/io/windows/launcher/launcher.factor

@@ -102,6 +102,9 @@ M: windows-ce-io fill-redirection ;
     fill-lpEnvironment
     fill-startup-info ;
 
+M: windows-io current-process-handle ( -- handle )
+    GetCurrentProcessId ;
+
 M: windows-io run-process* ( desc -- handle )
     [
         [

extra/tools/disassembler/disassembler.factor

@@ -2,8 +2,7 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: io.files io words alien kernel math.parser alien.syntax
 io.launcher system assocs arrays sequences namespaces qualified
-regexp system math sequences.lib ;
-QUALIFIED: unix
+regexp system math sequences.lib windows.kernel32 ;
 IN: tools.disassembler
 
 : in-file "gdb-in.txt" resource-path ;
@@ -18,8 +17,7 @@ M: word make-disassemble-cmd
 M: pair make-disassemble-cmd
     in-file [
         "attach " write
-        unix:getpid number>string print
-
+        current-process-handle number>string print
         "disassemble " write
         [ number>string write bl ] each
     ] with-file-out ;

extra/windows/kernel32/kernel32.factor

@@ -895,7 +895,7 @@ FUNCTION: DWORD GetConsoleTitleW ( LPWSTR lpConsoleTitle, DWORD nSize ) ;
 FUNCTION: BOOL GetCurrentDirectoryW ( DWORD len, LPTSTR buf ) ;
 : GetCurrentDirectory GetCurrentDirectoryW ; inline
 FUNCTION: HANDLE GetCurrentProcess ( ) ;
-! FUNCTION: GetCurrentProcessId
+FUNCTION: DWORD GetCurrentProcessId ( ) ;
 FUNCTION: HANDLE GetCurrentThread ( ) ;
 ! FUNCTION: GetCurrentThreadId
 ! FUNCTION: GetDateFormatA