feat: ultimate dev container

.devcontainer/Dockerfile

@@ -0,0 +1,55 @@
+FROM ubuntu:noble
+
+# Official workaround for "groupadd: GID '1000' already exists"
+RUN userdel -r ubuntu
+
+# Set non-interactive mode for apt-get
+ENV DEBIAN_FRONTEND=noninteractive
+
+# Install basic dependencies for compilation
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    build-essential \
+    gcc \
+    gcc-multilib \
+    g++-multilib \
+    make \
+    wget \
+    unzip \
+    git \
+    gdb \
+    libc6-dbg \
+    valgrind \
+    strace \
+    clang-format \
+    python3 python3-pip python3-venv \
+    && apt-get clean && rm -rf /var/lib/apt/lists/*
+
+# Create a virtual environment and install colour-valgrind
+RUN python3 -m venv /opt/venv && \
+    /opt/venv/bin/pip install colour-valgrind
+
+# Add the virtual environment to PATH for all users
+ENV PATH="/opt/venv/bin:$PATH"
+
+# Download and install Premake5
+RUN wget https://github.com/premake/premake-core/releases/download/v5.0.0-beta5/premake-5.0.0-beta5-linux.tar.gz \
+    && tar -xvf premake-5.0.0-beta5-linux.tar.gz \
+    && mv premake5 /usr/local/bin/ \
+    && chmod +x /usr/local/bin/premake5 \
+    && rm premake-5.0.0-beta5-linux.tar.gz
+
+ARG USERNAME=vscode
+ARG USER_UID=1000
+ARG USER_GID=$USER_UID
+
+# Create the user
+RUN groupadd --gid $USER_GID $USERNAME \
+    && useradd --uid $USER_UID --gid $USER_GID -m $USERNAME \
+    #
+    # [Optional] Add sudo support. Omit if you don't need to install software after connecting.
+    && apt-get update \
+    && apt-get install -y sudo \
+    && echo $USERNAME ALL=\(root\) NOPASSWD:ALL > /etc/sudoers.d/$USERNAME \
+    && chmod 0440 /etc/sudoers.d/$USERNAME
+
+USER $USERNAME

.devcontainer/devcontainer.json

@@ -0,0 +1,32 @@
+{
+    "name": "MonitorRam Dev Container",
+    "build": {
+        "context": "..",
+        "dockerfile": "./Dockerfile"
+    },
+    "capAdd": [
+        "SYS_PTRACE"
+    ],
+    "securityOpt": [
+        "seccomp=unconfined"
+    ],
+    "customizations": {
+        "vscode": {
+            "extensions": [
+                "ms-vscode.cpptools-extension-pack"
+            ],
+            "settings": {
+                "C_Cpp.clang_format_style": "file",
+                "C_Cpp.formatting": "clangFormat",
+                "editor.formatOnSave": true
+            }
+        }
+    },
+    "runArgs": [
+        "--network=host"
+    ],
+    "forwardPorts": [
+        3000
+    ],
+    "remoteUser": "vscode"
+}

.github/workflows/build.yml

@@ -14,7 +14,7 @@ concurrency:
   cancel-in-progress: true
 
 env:
-  PREMAKE_VERSION: "5.0.0-beta2"
+  PREMAKE_VERSION: "5.0.0-beta5"
 
 jobs:
   build-linux:
@@ -47,12 +47,12 @@ jobs:
           sudo apt-get install crossbuild-essential-arm64 -y
 
       - name: Install Premake5
-        uses: diamante0018/setup-premake@master
+        uses: diamante0018/setup-premake@v0.0.2
         with:
           version: ${{ env.PREMAKE_VERSION }}
 
       - name: Generate project files
-        run: premake5 gmake2
+        run: premake5 gmake
 
       - name: Set up problem matching
         uses: ammaraskar/gcc-problem-matcher@master

.vscode/launch.json

@@ -0,0 +1,51 @@
+{
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "GDB Debug (Debug Build)",
+            "type": "cppdbg",
+            "request": "launch",
+            "program": "${workspaceFolder}/build/bin/x64/Debug/MonitorRam",
+            "args": [
+                ""
+            ], // Arguments to pass to your program
+            "stopAtEntry": false,
+            "cwd": "${workspaceFolder}",
+            "environment": [],
+            "externalConsole": false,
+            "MIMode": "gdb",
+            "miDebuggerPath": "/usr/bin/gdb", // Path to gdb inside the container
+            "setupCommands": [
+                {
+                    "description": "Enable pretty-printing for gdb",
+                    "text": "-enable-pretty-printing",
+                    "ignoreFailures": true
+                }
+            ],
+            "preLaunchTask": "build-debug" // Task to build the Debug version
+        },
+        {
+            "name": "GDB Debug (Release Build)",
+            "type": "cppdbg",
+            "request": "launch",
+            "program": "${workspaceFolder}/build/bin/x64/Release/MonitorRam",
+            "args": [
+                ""
+            ], // Arguments to pass to your program
+            "stopAtEntry": false,
+            "cwd": "${workspaceFolder}",
+            "environment": [],
+            "externalConsole": false,
+            "MIMode": "gdb",
+            "miDebuggerPath": "/usr/bin/gdb",
+            "setupCommands": [
+                {
+                    "description": "Enable pretty-printing for gdb",
+                    "text": "-enable-pretty-printing",
+                    "ignoreFailures": true
+                }
+            ],
+            "preLaunchTask": "build-release" // Task to build the Release version
+        }
+    ]
+}

.vscode/tasks.json

@@ -0,0 +1,54 @@
+{
+    "version": "2.0.0",
+    "tasks": [
+        {
+            "label": "generate-makefiles",
+            "type": "shell",
+            "command": "premake5",
+            "args": [
+                "gmake"
+            ], // Generate Makefiles
+            "group": {
+                "kind": "build",
+                "isDefault": false
+            },
+            "problemMatcher": []
+        },
+        {
+            "label": "build-debug",
+            "type": "shell",
+            "command": "make",
+            "args": [
+                "-C",
+                "build",
+                "config=debug_x64"
+            ],
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            },
+            "problemMatcher": [
+                "$gcc"
+            ],
+            "dependsOn": "generate-makefiles"
+        },
+        {
+            "label": "build-release",
+            "type": "shell",
+            "command": "make",
+            "args": [
+                "-C",
+                "build",
+                "config=release_x64"
+            ],
+            "group": {
+                "kind": "build",
+                "isDefault": false
+            },
+            "problemMatcher": [
+                "$gcc"
+            ],
+            "dependsOn": "generate-makefiles"
+        }
+    ]
+}

LICENSE

@@ -1,6 +1,6 @@
 BSD 3-Clause License
 
-Copyright (c) 2022, Edoardo Sanguineti
+Copyright (c) 2025, diamante0018
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without

premake5.lua

@@ -38,7 +38,7 @@ end
 filter "configurations:Release"
 	optimize "Size"
 	defines "NDEBUG"
-	flags "FatalCompileWarnings"
+	fatalwarnings "All"
 filter {}
 
 filter "configurations:Debug"

src/main.c

@@ -1,5 +1,6 @@
 #include <signal.h>
 #include <stdio.h>
+#include <string.h>
 #include <unistd.h>
 
 #include "common.h"
@@ -19,7 +20,12 @@ int main(int argc, char* argv[]) {
   }
 
   struct sigaction act;
+  memset(&act, 0, sizeof(act));
+
   act.sa_handler = sigint_handler;
+  sigemptyset(&act.sa_mask); // Initialize the signal mask to empty
+  act.sa_flags = 0;          // Set flags to 0
+
   sigaction(SIGINT, &act, NULL);
 
   int result = setup(argv[1]);

src/monitor.c

@@ -1,3 +1,4 @@
+#include <assert.h>
 #include <errno.h>
 #include <signal.h>
 #include <stdio.h>
@@ -108,6 +109,13 @@ static int is_process_wild(int curr_real_mem, int peak_real_mem,
 }
 
 int setup(const char* pid) {
+  assert(pid);
+
+  if (*pid == '\0') {
+    printf("Invalid PID\n");
+    return 1;
+  }
+
   memset(&processes, 0, sizeof(processes));
 
   char* command = va("pgrep %s", pid);
@@ -147,7 +155,6 @@ int analyse() {
     status = popen(command, "r");
     if (!status) {
       perror("popen");
-      pclose(status);
       return 1;
     }