[pve-devel] [PATCH pve-storage 2/4] storage: add extend queue handling

[Tiago Sousa via pve-devel <pve-devel@lists.proxmox.com>]

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From: Tiago Sousa <joao.sousa@eurotux.com>
To: pve-devel@lists.proxmox.com
Subject: [PATCH pve-storage 2/4] storage: add extend queue handling
Date: Fri, 17 Oct 2025 12:25:27 +0100
Message-ID: <20251017112539.26471-3-joao.sousa@eurotux.com>

Signed-off-by: Tiago Sousa <joao.sousa@eurotux.com>
---
 src/PVE/Storage.pm | 72 +++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 71 insertions(+), 1 deletion(-)

diff --git a/src/PVE/Storage.pm b/src/PVE/Storage.pm
index 1dde2b7..ebbaf45 100755
--- a/src/PVE/Storage.pm
+++ b/src/PVE/Storage.pm
@@ -15,7 +15,7 @@ use Socket;
 use Time::Local qw(timelocal);
 
 use PVE::Tools qw(run_command file_read_firstline dir_glob_foreach $IPV6RE);
-use PVE::Cluster qw(cfs_read_file cfs_write_file cfs_lock_file);
+use PVE::Cluster qw(cfs_read_file cfs_write_file cfs_lock_file cfs_register_file);
 use PVE::DataCenterConfig;
 use PVE::Exception qw(raise_param_exc raise);
 use PVE::JSONSchema;
@@ -239,6 +239,76 @@ sub write_config {
     cfs_write_file('storage.cfg', $cfg);
 }
 
+cfs_register_file("extend-queue", \&parser_extend_queue, \&writer_extend_queue);
+
+sub extend_queue {
+    return cfs_read_file("extend-queue");
+}
+
+sub write_extend_queue {
+    my ($extend_queue) = @_;
+    return cfs_write_file("extend-queue",$extend_queue);
+}
+
+sub lock_extend_queue {
+    my ($code, $errmsg) = @_;
+
+    cfs_lock_file("extend-queue", undef, $code);
+    my $err = $@;
+    if ($err) {
+        $errmsg ? die "$errmsg: $err" : die $err;
+    }
+}
+
+sub parser_extend_queue {
+    my ($filename, $raw) = @_;
+
+    my @queue;
+
+    my $lineno = 0;
+    my @lines = split(/\n/, $raw);
+    my $nextline = sub {
+        while (defined(my $line = shift @lines)) {
+            $lineno++;
+            return $line if ($line !~ /^\s*#/);
+        }
+    };
+
+    while (@lines) {
+        my $line = $nextline->();
+        next if !$line;
+        print "Current line $line\n";
+
+        # vmid: nodename
+        if ($line =~ '[1-9][0-9]{2,8}+: [aefz][0-9a-f]{30}') {
+            print "Extend request is valid\n";
+            my ($vmid, $nodename) = split(/:\s/, $line, 2);
+            push @queue, [$vmid, $nodename];
+        }
+    }
+    return \@queue;
+}
+
+sub writer_extend_queue {
+    my ($filename, $queue) = @_;
+
+    my $out = "";
+    foreach my $entry (@$queue) {
+        my ($vmid, $nodename) = @$entry;
+        $out .= format_extend_request($vmid, $nodename) . "\n";
+    }
+
+    return $out;
+}
+
+sub format_extend_request {
+    my ($vmid, $node_name) = @_;
+
+    my $request = $vmid . ': ' . $node_name;
+
+    return $request;
+}
+
 sub lock_storage_config {
     my ($code, $errmsg) = @_;
 
-- 
2.47.3



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