8406115834
Access to the gpxe.org and etherboot.org domains and associated resources has been revoked by the registrant of the domain. Work around this problem by renaming project from gPXE to iPXE, and updating URLs to match. Also update README, LOG and COPYRIGHTS to remove obsolete information. Signed-off-by: Michael Brown <mcb30@ipxe.org>
99 lines
2.5 KiB
C
99 lines
2.5 KiB
C
/*
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* Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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FILE_LICENCE ( GPL2_OR_LATER );
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#include <ipxe/device.h>
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#include <ipxe/init.h>
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/** @file
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*
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* Initialisation, startup and shutdown routines
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*
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*/
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/** "startup() has been called" flag */
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static int started = 0;
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/**
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* Initialise iPXE
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*
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* This function performs the one-time-only and irreversible
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* initialisation steps, such as initialising the heap. It must be
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* called before (almost) any other function.
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*
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* There is, by definition, no counterpart to this function on the
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* shutdown path.
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*/
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void initialise ( void ) {
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struct init_fn *init_fn;
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/* Call registered initialisation functions */
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for_each_table_entry ( init_fn, INIT_FNS )
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init_fn->initialise ();
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}
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/**
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* Start up iPXE
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*
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* This function performs the repeatable initialisation steps, such as
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* probing devices. You may call startup() and shutdown() multiple
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* times (as is done via the PXE API when PXENV_START_UNDI is used).
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*/
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void startup ( void ) {
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struct startup_fn *startup_fn;
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if ( started )
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return;
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/* Call registered startup functions */
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for_each_table_entry ( startup_fn, STARTUP_FNS ) {
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if ( startup_fn->startup )
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startup_fn->startup();
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}
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started = 1;
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}
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/**
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* Shut down iPXE
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*
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* @v flags Shutdown behaviour flags
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*
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* This function reverses the actions of startup(), and leaves iPXE in
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* a state ready to be removed from memory. You may call startup()
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* again after calling shutdown().
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*
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* Call this function only once, before either exiting main() or
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* starting up a non-returnable image.
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*/
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void shutdown ( int flags ) {
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struct startup_fn *startup_fn;
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if ( ! started )
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return;
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/* Call registered shutdown functions (in reverse order) */
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for_each_table_entry_reverse ( startup_fn, STARTUP_FNS ) {
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if ( startup_fn->shutdown )
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startup_fn->shutdown ( flags );
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}
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started = 0;
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}
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