1 files changed, 87 insertions, 0 deletions
diff --git a/collectors/ebpf.plugin/ebpf_dcstat.h b/collectors/ebpf.plugin/ebpf_dcstat.h
new file mode 100644
index 00000000..4d6aff12
--- /dev/null
+++ b/collectors/ebpf.plugin/ebpf_dcstat.h
@@ -0,0 +1,87 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#ifndef NETDATA_EBPF_DCSTAT_H
+#define NETDATA_EBPF_DCSTAT_H 1
+
+// Module name & description
+#define NETDATA_EBPF_MODULE_NAME_DCSTAT "dcstat"
+#define NETDATA_EBPF_DC_MODULE_DESC "Monitor file access using directory cache. This thread is integrated with apps and cgroup."
+
+// charts
+#define NETDATA_DC_HIT_CHART "dc_hit_ratio"
+#define NETDATA_DC_REFERENCE_CHART "dc_reference"
+#define NETDATA_DC_REQUEST_NOT_CACHE_CHART "dc_not_cache"
+#define NETDATA_DC_REQUEST_NOT_FOUND_CHART "dc_not_found"
+
+#define NETDATA_DIRECTORY_CACHE_SUBMENU "directory cache"
+
+// configuration file
+#define NETDATA_DIRECTORY_DCSTAT_CONFIG_FILE "dcstat.conf"
+
+// Contexts
+#define NETDATA_CGROUP_DC_HIT_RATIO_CONTEXT "cgroup.dc_ratio"
+#define NETDATA_CGROUP_DC_REFERENCE_CONTEXT "cgroup.dc_reference"
+#define NETDATA_CGROUP_DC_NOT_CACHE_CONTEXT "cgroup.dc_not_cache"
+#define NETDATA_CGROUP_DC_NOT_FOUND_CONTEXT "cgroup.dc_not_found"
+
+#define NETDATA_SYSTEMD_DC_HIT_RATIO_CONTEXT "services.dc_ratio"
+#define NETDATA_SYSTEMD_DC_REFERENCE_CONTEXT "services.dc_reference"
+#define NETDATA_SYSTEMD_DC_NOT_CACHE_CONTEXT "services.dc_not_cache"
+#define NETDATA_SYSTEMD_DC_NOT_FOUND_CONTEXT "services.dc_not_found"
+
+// ARAL name
+#define NETDATA_EBPF_DCSTAT_ARAL_NAME "ebpf_dcstat"
+
+enum directory_cache_indexes {
+    NETDATA_DCSTAT_IDX_RATIO,
+    NETDATA_DCSTAT_IDX_REFERENCE,
+    NETDATA_DCSTAT_IDX_SLOW,
+    NETDATA_DCSTAT_IDX_MISS,
+
+    // Keep this as last and don't skip numbers as it is used as element counter
+    NETDATA_DCSTAT_IDX_END
+};
+
+enum directory_cache_tables {
+    NETDATA_DCSTAT_GLOBAL_STATS,
+    NETDATA_DCSTAT_PID_STATS,
+    NETDATA_DCSTAT_CTRL
+};
+
+// variables
+enum directory_cache_counters {
+    NETDATA_KEY_DC_REFERENCE,
+    NETDATA_KEY_DC_SLOW,
+    NETDATA_KEY_DC_MISS,
+
+    // Keep this as last and don't skip numbers as it is used as element counter
+    NETDATA_DIRECTORY_CACHE_END
+};
+
+enum directory_cache_targets {
+    NETDATA_DC_TARGET_LOOKUP_FAST,
+    NETDATA_DC_TARGET_D_LOOKUP
+};
+
+typedef struct netdata_publish_dcstat_pid {
+    uint64_t cache_access;
+    uint64_t file_system;
+    uint64_t not_found;
+} netdata_dcstat_pid_t;
+
+typedef struct netdata_publish_dcstat {
+    long long ratio;
+    long long cache_access;
+
+    netdata_dcstat_pid_t curr;
+    netdata_dcstat_pid_t prev;
+} netdata_publish_dcstat_t;
+
+void *ebpf_dcstat_thread(void *ptr);
+void ebpf_dcstat_create_apps_charts(struct ebpf_module *em, void *ptr);
+void ebpf_dcstat_release(netdata_publish_dcstat_t *stat);
+extern struct config dcstat_config;
+extern netdata_ebpf_targets_t dc_targets[];
+extern ebpf_local_maps_t dcstat_maps[];
+
+#endif // NETDATA_EBPF_DCSTAT_H