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Jelmer Vernooij 448483199f r12494: Support loading modules from .so files for most subsystems.
We now use a different system for initializing the modules for a subsystem.
Most subsystems now have an init function that looks something like this:

	init_module_fn static_init[] = STATIC_AUTH_MODULES;
	init_module_fn *shared_init = load_samba_modules(NULL, "auth");

	run_init_functions(static_init);
	run_init_functions(shared_init);

	talloc_free(shared_init);

I hope to eliminate the other init functions later on (the
init_programname_subsystems; defines).
(This used to be commit b6d2ad4ce0a91c4be790dd258820c492ff1787ea)
2007-10-10 13:47:45 -05:00

186 lines
4.0 KiB
Perl

# Samba Build System
# - the input checking functions
#
# Copyright (C) Stefan (metze) Metzmacher 2004
# Copyright (C) Jelmer Vernooij 2004
# Released under the GNU GPL
use strict;
package smb_build::input;
my $srcdir = ".";
sub strtrim($)
{
$_ = shift;
s/^[\t\n ]*//g;
s/[\t\n ]*$//g;
return $_;
}
sub str2array($)
{
$_ = shift;
s/^[\t\n ]*//g;
s/[\t\n ]*$//g;
s/([\t\n ]+)/ /g;
return () if (length($_)==0);
return split /[ \t\n]/;
}
sub check_subsystem($$$)
{
my ($INPUT, $subsys, $default_ot) = @_;
if ($subsys->{ENABLE} ne "YES") {
printf("Subsystem `%s' disabled\n",$subsys->{NAME});
return;
}
unless(defined($subsys->{OUTPUT_TYPE})) {
$subsys->{OUTPUT_TYPE} = $default_ot;
}
}
sub check_module($$$)
{
my ($INPUT, $mod, $default_ot) = @_;
die("Module $mod->{NAME} does not have a SUBSYSTEM set") if not defined($mod->{SUBSYSTEM});
my $use_default = 0;
if (not exists($INPUT->{$mod->{SUBSYSTEM}}{INIT_FUNCTIONS})) {
$INPUT->{$mod->{SUBSYSTEM}}{INIT_FUNCTIONS} = [];
}
if (!(defined($INPUT->{$mod->{SUBSYSTEM}}))) {
$mod->{ENABLE} = "NO";
return;
}
if ($mod->{ENABLE} ne "YES")
{
printf("Module `%s' disabled\n",$mod->{NAME});
return;
}
if (defined($mod->{CHOSEN_BUILD}) and $mod->{CHOSEN_BUILD} ne "DEFAULT")
{
$mod->{OUTPUT_TYPE} = $mod->{CHOSEN_BUILD};
} else {
$mod->{OUTPUT_TYPE} = $default_ot;
}
if ($mod->{OUTPUT_TYPE} eq "SHARED_LIBRARY") {
$mod->{INSTALLDIR} = "LIBDIR/$mod->{SUBSYSTEM}";
push (@{$mod->{REQUIRED_SUBSYSTEMS}}, $mod->{SUBSYSTEM});
} else {
push (@{$INPUT->{$mod->{SUBSYSTEM}}{REQUIRED_SUBSYSTEMS}}, $mod->{NAME});
push (@{$INPUT->{$mod->{SUBSYSTEM}}{INIT_FUNCTIONS}}, $mod->{INIT_FUNCTION}) if defined($mod->{INIT_FUNCTION});
}
}
sub check_library($$$)
{
my ($INPUT, $lib, $default_ot) = @_;
if ($lib->{ENABLE} ne "YES") {
printf("Library `%s' disabled\n",$lib->{NAME});
return;
}
$lib->{OUTPUT_TYPE} = $default_ot;
unless (defined($lib->{MAJOR_VERSION})) {
print "$lib->{NAME}: Please specify MAJOR_VERSION\n";
return;
}
$lib->{INSTALLDIR} = "LIBDIR";
}
sub check_binary($$)
{
my ($INPUT, $bin) = @_;
if ($bin->{ENABLE} ne "YES") {
printf("Binary `%s' disabled\n",$bin->{NAME});
return;
}
($bin->{BINARY} = (lc $bin->{NAME})) if not defined($bin->{BINARY});
$bin->{OUTPUT_TYPE} = "BINARY";
}
sub calc_unique_deps($$)
{
sub calc_unique_deps($$);
my ($deps, $udeps) = @_;
foreach my $dep (@{$deps}) {
if (not defined($udeps->{$$dep->{NAME}})) {
if (defined ($$dep->{OUTPUT_TYPE}) && (($$dep->{OUTPUT_TYPE} eq "OBJ_LIST")
or ($$dep->{OUTPUT_TYPE} eq "MERGEDOBJ"))) {
$udeps->{$$dep->{NAME}} = "BUSY";
calc_unique_deps($$dep->{DEPENDENCIES}, $udeps);
}
$udeps->{$$dep->{NAME}} = $$dep;
}
}
}
sub check($$$$$)
{
my ($INPUT, $enabled, $subsys_ot, $lib_ot, $module_ot) = @_;
foreach my $part (values %$INPUT) {
unless(defined($part->{NOPROTO})) {
$part->{NOPROTO} = "NO";
}
if (defined($enabled->{$part->{NAME}})) {
$part->{ENABLE} = $enabled->{$part->{NAME}};
next;
}
unless(defined($part->{ENABLE})) {
$part->{ENABLE} = "YES";
}
}
foreach my $k (keys %$INPUT) {
my $part = $INPUT->{$k};
check_subsystem($INPUT, $part, $subsys_ot) if ($part->{TYPE} eq "SUBSYSTEM");
check_module($INPUT, $part, $module_ot) if ($part->{TYPE} eq "MODULE");
check_library($INPUT, $part, $lib_ot) if ($part->{TYPE} eq "LIBRARY");
check_binary($INPUT, $part) if ($part->{TYPE} eq "BINARY");
}
my %depend = %$INPUT;
foreach my $part (values %depend) {
# Generate list of dependencies
$part->{DEPENDENCIES} = [];
foreach my $key (@{$part->{REQUIRED_SUBSYSTEMS}}) {
die("$part->{NAME} has undefined dependency $key\n") if not defined($depend{$key});
push (@{$part->{DEPENDENCIES}}, \$depend{$key});
}
delete ($part->{REQUIRED_SUBSYSTEMS});
}
foreach my $part (values %depend) {
$part->{UNIQUE_DEPENDENCIES} = {};
calc_unique_deps($part->{DEPENDENCIES}, $part->{UNIQUE_DEPENDENCIES});
}
return \%depend;
}
1;