Переименовал ConnectionsResponse -> ConnectionsCountResponse

Backend/MonitorAgent/MonitorAgent.API/Contracts/ConnectionsCountResponse.cs

@@ -0,0 +1,7 @@
+namespace MonitorAgent.API.Contracts;
+
+public class ConnectionsCountResponse
+{
+    public int Tcp {get;set;}
+    public int Udp {get;set;}
+}

Backend/MonitorAgent/MonitorAgent.API/Controllers/MonitorController.cs

@@ -48,4 +48,17 @@ public class MonitorController(
 
         return Ok(response);
     }
+
+    [HttpGet("connectionsCount")]
+    public async Task<ActionResult> GetConnectionsCountAsync(CancellationToken cancellationToken = default)
+    {
+        var count = await monitorService.GetConnectionsCountAsync(cancellationToken);
+        var response = new ConnectionsCountResponse
+        {
+             Tcp = count.TcpCount,
+             Udp = count.UdpCount 
+        };
+
+        return Ok(response);
+    }
 }

Backend/MonitorAgent/MonitorAgent.API/Program.cs

@@ -15,7 +15,9 @@ builder.Services.AddSwaggerGen();
 
 builder.Services.Configure<CpuMonitorSettings>(builder.Configuration.GetSection("CpuMonitorSettings"));
 
+builder.Services.AddScoped<IProcessStarterService, ProcessStarterService>();
 builder.Services.AddScoped<IMonitorService, MonitorService>();
+
 builder.Services.AddSingleton<RawCpuMonitorService>();
 builder.Services.AddSingleton<CpuMonitorBackgroundService>();
 builder.Services.AddHostedService(provider => provider.GetRequiredService<CpuMonitorBackgroundService>());

Backend/MonitorAgent/MonitorAgent.Application/Services/MonitorService.cs

@@ -30,7 +30,7 @@ public class MonitorService : IMonitorService
     public async Task<decimal> GetUptimeAsync(CancellationToken cancellationToken = default)
     {
         var uptime = await File.ReadAllTextAsync("/proc/uptime", cancellationToken);
-        return decimal.Parse(uptime.Split()[1], CultureInfo.InvariantCulture);
+        return decimal.Parse(uptime.Split()[0], CultureInfo.InvariantCulture);
     }
 
     public async Task<MemoryInfo> GetMemoryInfoAsync(CancellationToken cancellationToken = default)
@@ -74,5 +74,16 @@ public class MonitorService : IMonitorService
         return loadavg;
     }
 
+    // TODO: проверить на других системах
+    public async Task<ConnectionsCount> GetConnectionsCountAsync(CancellationToken cancellationToken = default)
+    {
+        var sockstat = await File.ReadAllLinesAsync("/proc/net/sockstat", cancellationToken);
+        
+        return new ConnectionsCount(
+            int.Parse(sockstat[0].Split()[2]),
+            int.Parse(sockstat[1].Split()[2])
+        );
+    }
+    
     public static int ParseInt(string str) => int.Parse(Regex.Match(str, @"\d+").Value);
 }

Backend/MonitorAgent/MonitorAgent.Application/Services/ProcessStarterService.cs

@@ -0,0 +1,27 @@
+using MonitorAgent.Core.Abstraction;
+using System.Diagnostics;
+
+namespace MonitorAgent.Application.Services;
+
+public class ProcessStarterService : IProcessStarterService
+{
+    public async Task<string> StartProcessAsync(
+        string fileName, string arguments, CancellationToken cancellationToken = default)
+    {
+        using var process = new Process
+        {
+            StartInfo = new ProcessStartInfo
+            {
+                FileName = fileName,
+                Arguments = arguments,
+                UseShellExecute = false,
+                RedirectStandardOutput = true,
+                RedirectStandardError = true
+            }
+        };
+
+        process.Start();
+        
+        return await process.StandardOutput.ReadToEndAsync(cancellationToken);
+    }
+}

Backend/MonitorAgent/MonitorAgent.Core/Abstraction/IMonitorService.cs

@@ -4,9 +4,11 @@ namespace MonitorAgent.Core.Abstraction;
 
 public interface IMonitorService
 {
-    public Task<decimal> GetUptimeAsync(CancellationToken cancellationToken = default);
+    public Task<decimal> GetUptimeAsync(CancellationToken cancellationToken);
     
-    public Task<MemoryInfo> GetMemoryInfoAsync(CancellationToken cancellationToken = default);
+    public Task<MemoryInfo> GetMemoryInfoAsync(CancellationToken cancellationToken);
 
-    public Task<decimal[]> GetLoadAverageAsync(CancellationToken cancellationToken = default);
+    public Task<decimal[]> GetLoadAverageAsync(CancellationToken cancellationToken);
+
+    public Task<ConnectionsCount> GetConnectionsCountAsync(CancellationToken cancellationToken);
 }

Backend/MonitorAgent/MonitorAgent.Core/Abstraction/IProcessStarterService.cs

@@ -0,0 +1,6 @@
+namespace MonitorAgent.Core.Abstraction;
+
+public interface IProcessStarterService
+{
+    Task<string> StartProcessAsync(string fileName, string arguments, CancellationToken cancellationToken);
+}

Backend/MonitorAgent/MonitorAgent.Core/Models/ConnectionsCount.cs

@@ -0,0 +1,7 @@
+namespace MonitorAgent.Core.Models;
+
+public class ConnectionsCount(int tcp, int udp)
+{
+    public readonly int TcpCount = tcp;
+    public readonly int UdpCount = udp;
+}