/************************************************************/
// Copyright (c) 2000-2001 University of Utah and the Flux Group.
// All rights reserved.
// 
// This file is part of the Flux OSKit.  The OSKit is free software, also known
// as "open source;" you can redistribute it and/or modify it under the terms
// of the GNU General Public License (GPL), version 2, as published by the Free
// Software Foundation (FSF).  To explore alternate licensing terms, contact
// the University of Utah at csl-dist@cs.utah.edu or +1-801-585-3271.
// 
// The OSKit 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 GPL for more details.  You should have
// received a copy of the GPL along with the OSKit; see the file COPYING.  If
// not, write to the FSF, 59 Temple Place #330, Boston, MA 02111-1307, USA.
//
// Processes
/************************************************************/

directory "${OSKITDIR}"

bundletype _Exit_T =
{ include "${OSKITDIR}/oskit/c/unistd.h",
  _exit
} with flags libc

bundletype PosixProcess_T = 
{ include "${OSKITDIR}/oskit/c/sys/types.h",
  include "${OSKITDIR}/oskit/c/unistd.h",
  include "${OSKITDIR}/oskit/c/sys/wait.h",
  //  extends _Exit_T,
  execve,
  fork,
  vfork,
  getpid,
  wait4,
  waitpid,
} with flags libc

bundletype Exec_T = 
{ include "${OSKITDIR}/oskit/exec/exec.h",
  exec_load,
  exec_load_aout,
  exec_load_elf,
} with flags libc

/************************************************************/
// Implementation
/************************************************************/

// ToDo: is there any point in making this separate from null_posix_process?
// (or in having it at all)

// mk_unit -o -n posix__exit posix/sys/_exit.o 
unit posix__exit = {
  imports[ clientos : ClientOS_T // libc_environment
         ];
  exports[ exit : { oskit_libc_exit, _exit } // extends _Exit_T
         ];
  depends{ exports + inits + finis needs { clientos.libc_environment } };
  files{ "posix/sys/_exit.c"
  } with flags posix;
}

/*#
A collection of process-related functions for use in systems that don't
really support process functionality.
All except getpid return error codes.
#*/

// mk_unit -o -n null_posix_process posix/sys/execve.o posix/sys/fork.o posix/sys/getpid.o posix/sys/sbrk.o posix/sys/vfork.o posix/sys/wait4.o posix/sys/waitpid.o 

unit null_posix_process = {
  imports[ panic : Panic_T ];
  exports[ out : PosixProcess_T ];
  depends{ exports + inits + finis needs imports };
  files{ 
    "posix/sys/execve.c",
    "posix/sys/fork.c",
    "posix/sys/getpid.c",
    "posix/sys/sbrk.c",
    "posix/sys/vfork.c",
    "posix/sys/wait4.c",
    "posix/sys/waitpid.c",
  } with flags posix;
}

// mk_unit -nexec exec/load.o exec/aout.o exec/elf.o 
unit exec = {
  imports[ ];
  exports[ out : Exec_T ];
  depends{ exports + inits + finis needs imports };
  files{
    "exec/load.c",
    "exec/elf.c",
    "exec/x86/aout.c",
  } with flags exec;
}

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// End
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