[PATCH proxmox-backup 1/9] refactor: remove local `LogThrottle` in favor of proxmox-log

[Shan Shaji <s.shaji@proxmox.com>]

Remove the local implementation of `LogThrottle` and use the version
provided by the proxmox-log crate instead. This prepares the utility
for re-use in pbs-datastore and updates all existing references
accordingly. No functional changes.

Signed-off-by: Shan Shaji <s.shaji@proxmox.com>
---
 pbs-client/src/lib.rs             |  3 ---
 pbs-client/src/log_throttle.rs    | 36 -------------------------------
 proxmox-backup-client/src/main.rs |  3 ++-
 3 files changed, 2 insertions(+), 40 deletions(-)
 delete mode 100644 pbs-client/src/log_throttle.rs

diff --git a/pbs-client/src/lib.rs b/pbs-client/src/lib.rs
index 139f4f4b5..4b8e4e4f4 100644
--- a/pbs-client/src/lib.rs
+++ b/pbs-client/src/lib.rs
@@ -45,7 +45,4 @@ pub use chunk_stream::{ChunkStream, FixedChunkStream, InjectionData};
 mod backup_stats;
 pub use backup_stats::BackupStats;
 
-mod log_throttle;
-pub use log_throttle::LogThrottle;
-
 pub const PROXMOX_BACKUP_TCP_KEEPALIVE_TIME: u32 = 120;
diff --git a/pbs-client/src/log_throttle.rs b/pbs-client/src/log_throttle.rs
deleted file mode 100644
index cfaa6c494..000000000
--- a/pbs-client/src/log_throttle.rs
+++ /dev/null
@@ -1,36 +0,0 @@
-use std::time::{Duration, Instant};
-
-/// Rate-limits recurring log output, such as progress lines, with an exponential backoff.
-///
-/// [`should_log`](Self::should_log) returns `true` at most once per the current interval. Starting
-/// from an initial interval, the delay doubles after each hit up to a configured maximum, giving
-/// frequent feedback early on while avoiding log spam during long-running operations.
-pub struct LogThrottle {
-    last: Instant,
-    interval: Duration,
-    max_interval: Duration,
-}
-
-impl LogThrottle {
-    /// Creates a throttle with the given initial interval, doubling up to `max_interval` after each
-    /// hit. The initial interval is capped at `max_interval`.
-    pub fn new(initial_interval: Duration, max_interval: Duration) -> Self {
-        Self {
-            last: Instant::now(),
-            interval: initial_interval.min(max_interval),
-            max_interval,
-        }
-    }
-
-    /// Returns `true` if the current interval has elapsed since the last hit, advancing the
-    /// throttle and doubling the interval (capped at the maximum); returns `false` otherwise.
-    pub fn should_log(&mut self) -> bool {
-        let now = Instant::now();
-        if now.duration_since(self.last) < self.interval {
-            return false;
-        }
-        self.last = now;
-        self.interval = (self.interval * 2).min(self.max_interval);
-        true
-    }
-}
diff --git a/proxmox-backup-client/src/main.rs b/proxmox-backup-client/src/main.rs
index 3e7aa7cfd..93f5a1b7a 100644
--- a/proxmox-backup-client/src/main.rs
+++ b/proxmox-backup-client/src/main.rs
@@ -18,6 +18,7 @@ use pathpatterns::{MatchEntry, MatchType, PatternFlag};
 use proxmox_async::blocking::TokioWriterAdapter;
 use proxmox_human_byte::HumanByte;
 use proxmox_io::StdChannelWriter;
+use proxmox_log::log_throttle::LogThrottle;
 use proxmox_router::{ApiMethod, RpcEnvironment, cli::*};
 use proxmox_schema::api;
 use proxmox_sys::fs::{CreateOptions, file_get_json, image_size, replace_file};
@@ -51,7 +52,7 @@ use pbs_client::{
     BACKUP_SOURCE_SCHEMA, BackupDetectionMode, BackupReader, BackupRepository,
     BackupRepositoryArgs, BackupSpecificationType, BackupStats, BackupTargetArgs, BackupWriter,
     BackupWriterOptions, ChunkStream, FixedChunkStream, HttpClient, IndexType, InjectionData,
-    LogThrottle, PxarBackupStream, RemoteChunkReader, UploadOptions, delete_ticket_info,
+    PxarBackupStream, RemoteChunkReader, UploadOptions, delete_ticket_info,
     parse_backup_specification, view_task_result,
 };
 use pbs_datastore::catalog::{BackupCatalogWriter, CatalogReader, CatalogWriter};
-- 
2.47.3