initial commit

Signed-off-by: NotAShelf <raf@notashelf.dev>
Change-Id: Ib131388c1056b6708b730a35011811026a6a6964

scanners/scanner-system/src/lib.rs

@@ -0,0 +1,88 @@
+#![allow(improper_ctypes)]
+use pscand_core::helpers::{ResourceHelper, SystemHelper};
+use pscand_core::scanner::{MetricValue, Scanner};
+use pscand_core::Result;
+use std::collections::HashMap;
+use std::time::Duration;
+
+struct SystemScanner {
+    _prev_cpu: Option<HashMap<String, f64>>,
+}
+
+impl Default for SystemScanner {
+    fn default() -> Self {
+        Self { _prev_cpu: None }
+    }
+}
+
+#[unsafe(no_mangle)]
+pub extern "C" fn pscand_scanner() -> Box<dyn Scanner> {
+    Box::new(SystemScanner::default())
+}
+
+impl Scanner for SystemScanner {
+    fn name(&self) -> &'static str {
+        "system"
+    }
+
+    fn interval(&self) -> Duration {
+        Duration::from_secs(1)
+    }
+
+    fn init(&mut self, _config: &toml::Value) -> Result<()> {
+        Ok(())
+    }
+
+    fn collect(&self) -> Result<HashMap<String, MetricValue>> {
+        let mut metrics = HashMap::new();
+
+        if let Ok(uptime) = SystemHelper::uptime() {
+            metrics.insert(
+                "uptime_secs".to_string(),
+                MetricValue::from_f64(uptime.as_secs_f64()),
+            );
+        }
+
+        if let Ok((load1, load5, load15)) = SystemHelper::load_average() {
+            metrics.insert("load_1m".to_string(), MetricValue::from_f64(load1));
+            metrics.insert("load_5m".to_string(), MetricValue::from_f64(load5));
+            metrics.insert("load_15m".to_string(), MetricValue::from_f64(load15));
+        }
+
+        if let Ok(cpu) = ResourceHelper::cpu_usage() {
+            if let Some(total) = cpu.get("total_usage_percent") {
+                metrics.insert("cpu_percent".to_string(), MetricValue::from_f64(*total));
+            }
+        }
+
+        if let Ok(mem) = ResourceHelper::memory_info() {
+            if let Some(total) = mem.get("MemTotal") {
+                metrics.insert(
+                    "mem_total_bytes".to_string(),
+                    MetricValue::Integer(*total as i64),
+                );
+            }
+            if let Some(available) = mem.get("MemAvailable") {
+                metrics.insert(
+                    "mem_available_bytes".to_string(),
+                    MetricValue::Integer(*available as i64),
+                );
+            }
+            if let Some(used) = mem.get("MemAvailable") {
+                if let Some(total) = mem.get("MemTotal") {
+                    let used_mem = total.saturating_sub(*used);
+                    metrics.insert(
+                        "mem_used_bytes".to_string(),
+                        MetricValue::Integer(used_mem as i64),
+                    );
+                }
+            }
+        }
+
+        Ok(metrics)
+    }
+
+    fn cleanup(&mut self) -> Result<()> {
+        Ok(())
+    }
+}