Adding upstream version 247.3.upstream/247.3upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 60 insertions, 0 deletions

diff --git a/src/oom/oomd-manager.h b/src/oom/oomd-manager.h
new file mode 100644
index 0000000..3f3eb5a
--- /dev/null
+++ b/src/oom/oomd-manager.h
@@ -0,0 +1,60 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+#pragma once
+
+#include "conf-parser.h"
+#include "oomd-util.h"
+#include "sd-event.h"
+#include "varlink.h"
+
+/* Polling interval for monitoring stats */
+#define INTERVAL_USEC (1 * USEC_PER_SEC)
+
+/* Used to weight the averages */
+#define AVERAGE_SIZE_DECAY 4
+
+/* Take action if 10s of memory pressure > 60 for more than 30s. We use the "full" value from PSI so this is the
+ * percentage of time all tasks were delayed (i.e. unproductive).
+ * Generally 60 or higher might be acceptable for something like system.slice with no memory.high set; processes in
+ * system.slice are assumed to be less latency sensitive. */
+#define PRESSURE_DURATION_USEC (30 * USEC_PER_SEC)
+#define DEFAULT_MEM_PRESSURE_LIMIT 60
+#define DEFAULT_SWAP_USED_LIMIT 90
+
+#define POST_ACTION_DELAY_USEC (15 * USEC_PER_SEC)
+
+typedef struct Manager Manager;
+
+struct Manager {
+        sd_bus *bus;
+        sd_event *event;
+
+        Hashmap *polkit_registry;
+
+        bool dry_run;
+        unsigned swap_used_limit;
+        loadavg_t default_mem_pressure_limit;
+
+        /* k: cgroup paths -> v: OomdCGroupContext
+         * Used to detect when to take action. */
+        Hashmap *monitored_swap_cgroup_contexts;
+        Hashmap *monitored_mem_pressure_cgroup_contexts;
+
+        OomdSystemContext system_context;
+
+        usec_t post_action_delay_start;
+
+        sd_event_source *cgroup_context_event_source;
+
+        Varlink *varlink;
+};
+
+void manager_free(Manager *m);
+DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
+
+int manager_new(Manager **ret);
+
+int manager_start(Manager *m, bool dry_run, int swap_used_limit, int mem_pressure_limit);
+
+int manager_get_dump_string(Manager *m, char **ret);
+
+CONFIG_PARSER_PROTOTYPE(config_parse_oomd_default);