Files
scylladb/supervisor.hh
Kefu Chai 432c000dfa ./: not include unused headers
these unused includes were identified by clangd. see
https://clangd.llvm.org/guides/include-cleaner#unused-include-warning
for more details on the "Unused include" warning.

Signed-off-by: Kefu Chai <kefu.chai@scylladb.com>

Closes scylladb/scylladb#17888
2024-03-20 09:16:46 +02:00

44 lines
1.2 KiB
C++

/*
* Copyright (C) 2017-present ScyllaDB
*/
/*
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
#pragma once
#include <seastar/core/sstring.hh>
#include <seastar/core/print.hh>
#include <seastar/util/log.hh>
#include "seastarx.hh"
#include <systemd/sd-daemon.h>
extern logger startlog;
class supervisor {
public:
static constexpr auto systemd_ready_msg = "READY=1";
/** A systemd status message has a format <status message prefix>=<message> */
static constexpr auto systemd_status_msg_prefix = "STATUS";
public:
/**
* @brief Notify the Supervisor with the given message.
* @param msg message to notify the Supervisor with
* @param ready set to TRUE when scylla service becomes ready
*/
static inline void notify(sstring msg, bool ready = false) {
startlog.info("{}", msg);
try_notify_systemd(msg, ready);
}
private:
static inline void try_notify_systemd(sstring msg, bool ready) {
if (ready) {
sd_notify(0, format("{}\n{}={}\n", systemd_ready_msg, systemd_status_msg_prefix, msg).c_str());
} else {
sd_notify(0, format("{}={}\n", systemd_status_msg_prefix, msg).c_str());
}
}
};