Utility to list available hooks.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@89232 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 77 insertions, 0 deletions

diff --git a/support/list_hooks.pl b/support/list_hooks.pl
new file mode 100755
index 0000000000..c52c567142
--- /dev/null
+++ b/support/list_hooks.pl
@@ -0,0 +1,77 @@
+#!/usr/bin/perl -w
+
+use strict;
+
+use Carp;
+
+my $path=shift;
+
+findInDir($path);
+
+foreach my $hook (sort keys %::Hooks) {
+    my $h=$::Hooks{$hook};
+    for my $x (qw(declared implemented type args)) {
+	croak "$hook datum '$x' missing" if !exists $h->{$x};
+    }
+    print "$hook\n";
+    print "  declared in $h->{declared}\n";
+    print "  implemented in $h->{implemented}\n";
+    print "  type is $h->{type}\n";
+    print "  $h->{ret} $hook($h->{args})\n";
+    print "\n";
+}
+
+sub findInDir {
+    my $path=shift;
+
+    local(*D);
+    opendir(D,$path) || croak "Can't open $path: $!";
+    while(my $f=readdir D) {
+	next if $f=~/^\./;
+	my $file="$path/$f";
+
+	if(-d $file) {
+	    findInDir($file);
+	    next;
+	}
+	next if $file !~ /\.[ch]$/;
+
+	scanFile($file);
+    }
+    closedir D;
+}
+
+sub scanFile {
+    my $file=shift;
+
+#    print "scanning $file\n";
+
+    open(F,$file) || croak "Can't open $file: $!";
+    while(<F>) {
+	next if /\#define/;
+	next if /\@deffunc/;
+	if(/AP_DECLARE_HOOK\((.*)\)/) {
+	    my $def=$1;
+	    my($ret,$name,$args)=$def=~/([^,\s]+)\s*,\s*([^,\s]+)\s*,\s*\((.*)\)/;
+	    croak "Don't understand $def in $file" if !defined $args;
+#	    print "found $ret $name($args) in $file\n";
+
+	    croak "$name declared twice! ($_)"
+		if exists $::Hooks{$name}->{declared};
+	    $::Hooks{$name}->{declared}=$file;
+	    $::Hooks{$name}->{ret}=$ret;
+	    $::Hooks{$name}->{args}=$args;
+	}
+	if(/AP_IMPLEMENT_HOOK_()(VOID)\(([^,\s]+)/
+	   || /AP_IMPLEMENT(_OPTIONAL|)_HOOK_(.*?)\([^,]+?\s*,\s*([^,\s]+)/) {
+	    my($type,$name)=($1 ? "OPTIONAL $2" : $2,$3);
+
+#	    print "found $name $type in $file\n";
+
+	    croak "$name implemented twice ($::Hooks{$name}->{implemented} and $file) ($_)"
+		if exists $::Hooks{$name}->{implemented};
+	    $::Hooks{$name}->{implemented}=$file;
+	    $::Hooks{$name}->{type}=$type;
+	}
+    }
+}