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marsadm: path correction / systematic naming conventions

This commit is contained in:
Thomas Schoebel-Theuer 2014-02-12 12:41:18 +01:00
parent 0edca689bf
commit 11bc9f2e91
1 changed files with 30 additions and 8 deletions
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38
userspace/marsadm
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@ -59,6 +59,24 @@ my $kernel_version = 0;
##################################################################
# path correction
sub correct_path {
my ($path) = @_;
# actual switches
$path =~ s:(/is-attach)[a-z]*$:$1ed:;
$path =~ s:(/is-)(fetch)[a-z]*$:$1copy:;
$path =~ s:(/is-)(apply)[a-z]*$:$1replay:;
$path =~ s:(/is-(copy|replay|sync))[a-z]*$:$1ing:;
# todo switches
$path =~ s:(/fetch)[a-z]*$:/connect:;
$path =~ s:(/apply)[a-z]*$:/allow-replay:;
$path =~ s:(/replay)[a-z]*$:/allow-replay:;
return $path;
}
##################################################################
# low-level infrastructure
my @link_list = ();
@ -230,6 +248,8 @@ sub wait_cond {
"attached" => "is-attached",
"replay" => "is-replaying",
"replaying"=> "is-replaying",
"fetch" => "is-copying",
"fetching" => "is-copying",
"copy" => "is-copying",
"copying" => "is-copying",
"sync" => "is-syncing",
@ -244,8 +264,9 @@ sub wait_cond {
(
"attach" => "attach",
"attached" => "attach",
"fetch" => "connect",
"connect" => "connect",
"replay" => "allow-replay",
"replay" => "replay",
"sync" => "sync",
);
my $name = $table{$specific};
@ -421,6 +442,7 @@ sub check_primary_gone {
sub check_todo {
my ($cmd, $res, $key, $val, $wait, $unchecked, $inv) = @_;
my $path = "$mars/resource-$res/todo-$host/$key";
$path = correct_path($path);
my $link;
for (;;) {
$link = get_link($path, $unchecked);
@ -948,7 +970,7 @@ sub _trigger {
sub _switch {
my ($cmd, $res, $path, $on) = @_;
my $src = $on ? "1" : "0";
$path = correct_path($path);
my $old = get_link($path);
if ($old && $old eq $src) {
lprint "${cmd} on resource $res is already activated\n" if $cmd;
@ -1599,14 +1621,14 @@ sub pause_replay_global_res {
my $pause = ($cmd =~ m/pause/);
my @paths = glob("$mars/resource-$res/todo-*/");
for my $path (@paths) {
_switch($cmd, $res, "$path/allow-replay", !$pause);
_switch($cmd, $res, "$path/replay", !$pause);
}
}
sub pause_replay_local_res {
my ($cmd, $res) = @_;
my $pause = ($cmd =~ m/pause/);
my $path = "$mars/resource-$res/todo-$host/allow-replay";
my $path = "$mars/resource-$res/todo-$host/replay";
_switch($cmd, $res, $path, !$pause);
}
@ -1652,7 +1674,7 @@ sub set_replay_res {
ldie "you must supply a numeric logfile number as third argument.\n";
}
check_not_primary(@_);
check_todo($cmd, $res, "allow-replay", 0, 0);
check_todo($cmd, $res, "replay", 0, 0);
my $replaylink = "$mars/resource-$res/replay-$host";
my $old_val = get_link($replaylink);
my $old_nr = $old_val;
@ -1702,7 +1724,7 @@ sub primary_phase0 {
}
check_todo($cmd, $res, "attach", 1, 0);
check_todo($cmd, $res, "connect", 1, 0) if !$force;
check_todo($cmd, $res, "allow-replay", 1, 0);
check_todo($cmd, $res, "replay", 1, 0);
}
return if ($old eq $host and $cmd eq "primary");
return if $old eq "(none)";
@ -1802,7 +1824,7 @@ sub invalidate_res_phase0 {
sub invalidate_res_phase1 {
my ($cmd, $res) = @_;
_switch($cmd, $res, "$mars/resource-$res/todo-$host/sync", 0);
_switch($cmd, $res, "$mars/resource-$res/todo-$host/allow-replay", 0);
_switch($cmd, $res, "$mars/resource-$res/todo-$host/replay", 0);
}
sub invalidate_res_phase2 {
@ -1824,7 +1846,7 @@ sub invalidate_res_phase3 {
set_link("0", $dst);
finish_links(); # opportunity for errors => don't continue
_set_replaylink("$mars/resource-$res", $replay_nr, $primary, "");
_switch($cmd, $res, "$mars/resource-$res/todo-$host/allow-replay", 1);
_switch($cmd, $res, "$mars/resource-$res/todo-$host/replay", 1);
_switch($cmd, $res, "$mars/resource-$res/todo-$host/sync", 1);
}