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+name = "power_sched"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+anyhow = "1.0.96"
+ctrlc = "3.4.5"
+libbpf-rs = "0.24.8"
+libc = "0.2.170"
+plain = "0.2.3"
+scx_utils = "1.0.11"
+scx_rustland_core = "2.2.8"
+
+[build-dependencies]
+scx_rustland_core = "2.2.8"
diff --git a/build.rs b/build.rs
new file mode 100644
index 0000000..ad7ee97
--- /dev/null
+++ b/build.rs
@@ -0,0 +1,10 @@
+// This software may be used and distributed according to the terms of the
+// GNU General Public License version 2.
+//
+
+fn main() {
+    scx_rustland_core::RustLandBuilder::new()
+        .unwrap()
+        .build()
+        .unwrap();
+}
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..ff34f7f
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,82 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1731533236,
+        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1740367490,
+        "narHash": "sha256-WGaHVAjcrv+Cun7zPlI41SerRtfknGQap281+AakSAw=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "0196c0175e9191c474c26ab5548db27ef5d34b05",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs",
+        "rust-overlay": "rust-overlay"
+      }
+    },
+    "rust-overlay": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1740450604,
+        "narHash": "sha256-T/lqASXzCzp5lJISCUw+qwfRmImVUnhKgAhn8ymRClI=",
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "5961ca311c85c31fc5f51925b4356899eed36221",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "type": "github"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..7cdb63d
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,89 @@
+{
+  description = "BPF-based scheduler using sched-ext";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+    rust-overlay = {
+      url = "github:oxalica/rust-overlay";
+      inputs = {
+        nixpkgs.follows = "nixpkgs";
+        flake-utils.follows = "flake-utils";
+      };
+    };
+  };
+
+  outputs = { self, nixpkgs, flake-utils, rust-overlay }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        overlays = [ (import rust-overlay) ];
+        pkgs = import nixpkgs {
+          inherit system overlays;
+          config = {
+            hardeningDisable = [ "stackprotector" "zerocallusedregs" ];
+          };
+        };
+        
+        # Use a stable rust with specific components
+        rustVersion = pkgs.rust-bin.stable.latest.default.override {
+          extensions = [ "rust-src" "rust-analyzer" "clippy" "rustfmt" ];
+        };
+
+        # Dependencies based on scx_rustscheds
+        nativeBuildInputs = with pkgs; [
+          pkg-config
+          rustVersion
+          llvmPackages.clang
+          bpftools # bpftool
+        ];
+        
+        buildInputs = with pkgs; [
+          elfutils
+          zlib
+          zstd
+          libbpf
+        ];
+
+        # Environment variables needed for compilation
+        shellEnv = {
+          LIBCLANG_PATH = "${pkgs.lib.getLib pkgs.llvmPackages.libclang}/lib";
+          BPF_CLANG = pkgs.lib.getExe pkgs.llvmPackages.clang;
+          BPF_EXTRA_CFLAGS_PRE_INCL = pkgs.lib.concatStringsSep " " [
+            "-I${pkgs.libbpf}/include"
+            "-I${pkgs.libbpf}/include/uapi"
+            "-I${pkgs.libbpf}/include/linux"
+          ];
+          BPF_EXTRA_CFLAGS = "-fno-stack-protector";
+          RUSTFLAGS = pkgs.lib.concatStringsSep " " [
+            "-C relocation-model=pic"
+            "-C link-args=-lelf"
+            "-C link-args=-lz"
+            "-C link-args=-lzstd"
+            "-L ${pkgs.libbpf}/lib"
+          ];
+        };
+      in
+      {
+        # Development shell with all dependencies
+        devShells.default = pkgs.mkShell {
+          inherit nativeBuildInputs buildInputs;
+          inherit (shellEnv) LIBCLANG_PATH BPF_CLANG BPF_EXTRA_CFLAGS_PRE_INCL BPF_EXTRA_CFLAGS RUSTFLAGS;
+          hardeningDisable = [ "stackprotector" "zerocallusedregs" ];
+          
+          # Additional development tools
+          packages = with pkgs; [
+            cargo-watch
+            cargo-expand
+            just
+          ];
+          
+          # Shell hook to print some useful info
+          shellHook = ''
+            echo "BPF scheduler development environment"
+            echo "Kernel: $(uname -r)"
+            echo "Rust: $(rustc --version)"
+            echo "Clang: $(clang --version | head -n1)"
+          '';
+        };
+      });
+}
diff --git a/src/bpf_intf.rs b/src/bpf_intf.rs
new file mode 100644
index 0000000..9db020e
--- /dev/null
+++ b/src/bpf_intf.rs
@@ -0,0 +1,9 @@
+// This software may be used and distributed according to the terms of the
+// GNU General Public License version 2.
+
+#![allow(non_upper_case_globals)]
+#![allow(non_camel_case_types)]
+#![allow(non_snake_case)]
+#![allow(dead_code)]
+
+include!(concat!(env!("OUT_DIR"), "/bpf_intf.rs"));
diff --git a/src/bpf_skel.rs b/src/bpf_skel.rs
new file mode 100644
index 0000000..c42af33
--- /dev/null
+++ b/src/bpf_skel.rs
@@ -0,0 +1,4 @@
+// This software may be used and distributed according to the terms of the
+// GNU General Public License version 2.
+
+include!(concat!(env!("OUT_DIR"), "/bpf_skel.rs"));
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..784d038
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,138 @@
+mod bpf_skel;
+pub use bpf_skel::*;
+pub mod bpf_intf;
+
+#[rustfmt::skip]
+mod bpf;
+use bpf::*;
+
+use scx_utils::UserExitInfo;
+
+use libbpf_rs::OpenObject;
+
+use std::collections::VecDeque;
+use std::mem::MaybeUninit;
+
+use anyhow::Result;
+
+const SLICE_US: u64 = 5000;
+
+struct Scheduler<'a> {
+    bpf: BpfScheduler<'a>,
+    task_queue: VecDeque<QueuedTask>,
+}
+
+impl<'a> Scheduler<'a> {
+    fn init(open_object: &'a mut MaybeUninit<OpenObject>) -> Result<Self> {
+        let bpf = BpfScheduler::init(
+            open_object,
+            0,     // exit_dump_len (buffer size of exit info, 0 = default)
+            false, // partial (false = include all tasks)
+            false, // debug (false = debug mode off)
+        )?;
+        dbg!("registering rust user space scheduler");
+        Ok(Self {
+            bpf,
+            task_queue: VecDeque::new(),
+        })
+    }
+
+    fn consume_all_tasks(&mut self) {
+        // Consume all tasks that are ready to run.
+        //
+        // Each task contains the following details:
+        //
+        // pub struct QueuedTask {
+        //     pub pid: i32,              // pid that uniquely identifies a task
+        //     pub cpu: i32,              // CPU where the task is running
+        //     pub sum_exec_runtime: u64, // Total cpu time
+        //     pub weight: u64,           // Task static priority
+        //     pub nvcsw: u64,            // Total amount of voluntary context switches
+        //     pub slice: u64,            // Remaining time slice budget
+        //     pub vtime: u64,            // Current task vruntime / deadline (set by the scheduler)
+        // }
+        //
+        // Although the FIFO scheduler doesn't use these fields, they can provide valuable data for
+        // implementing more sophisticated scheduling policies.
+        while let Ok(Some(task)) = self.bpf.dequeue_task() {
+            self.task_queue.push_back(task);
+        }
+    }
+
+    fn dispatch_next_task(&mut self) {
+        if let Some(task) = self.task_queue.pop_front() {
+            // Create a new task to be dispatched, derived from the received enqueued task.
+            //
+            // pub struct DispatchedTask {
+            //     pub pid: i32,      // pid that uniquely identifies a task
+            //     pub cpu: i32,      // target CPU selected by the scheduler
+            //     pub flags: u64,    // special dispatch flags
+            //     pub slice_ns: u64, // time slice assigned to the task (0 = default)
+            // }
+            //
+            // The dispatched task's information are pre-populated from the QueuedTask and they can
+            // be modified before dispatching it via self.bpf.dispatch_task().
+            let mut dispatched_task = DispatchedTask::new(&task);
+
+            // Decide where the task needs to run (target CPU).
+            //
+            // A call to select_cpu() will return the most suitable idle CPU for the task,
+            // considering its previously used CPU.
+            let cpu = self.bpf.select_cpu(task.pid, task.cpu, 0);
+            if cpu >= 0 {
+                dispatched_task.cpu = cpu;
+            } else {
+                dispatched_task.flags |= RL_CPU_ANY as u64;
+            }
+
+            // Decide for how long the task needs to run (time slice); if not specified
+            // SCX_SLICE_DFL will be used by default.
+            dispatched_task.slice_ns = SLICE_US;
+
+            // Dispatch the task on the target CPU.
+            self.bpf.dispatch_task(&dispatched_task).unwrap();
+
+            // Notify the BPF component of the number of pending tasks and immediately give a
+            // chance to run to the dispatched task.
+            self.bpf.notify_complete(self.task_queue.len() as u64);
+        }
+    }
+
+    fn dispatch_tasks(&mut self) {
+        loop {
+            // Consume all tasks before dispatching any.
+            self.consume_all_tasks();
+
+            // Dispatch one task from the queue.
+            self.dispatch_next_task();
+
+            // If no task is ready to run (or in case of error), stop dispatching tasks and notify
+            // the BPF component that all tasks have been scheduled / dispatched, with no remaining
+            // pending tasks.
+            if self.task_queue.is_empty() {
+                self.bpf.notify_complete(0);
+                break;
+            }
+        }
+    }
+
+    fn run(&mut self) -> Result<UserExitInfo> {
+        while !self.bpf.exited() {
+            self.dispatch_tasks();
+        }
+        self.bpf.shutdown_and_report()
+    }
+}
+
+fn main() -> Result<()> {
+    // Initialize and load the FIFO scheduler.
+    let mut open_object = MaybeUninit::uninit();
+    loop {
+        let mut sched = Scheduler::init(&mut open_object)?;
+        if !sched.run()?.should_restart() {
+            break;
+        }
+    }
+
+    Ok(())
+}