Initial commit

src/main.rs

@@ -0,0 +1,50 @@
+use libc::{c_int, c_void, mmap, MAP_FAILED, MAP_SHARED, PROT_READ, PROT_WRITE};
+use std::{env, ptr};
+
+const SHARED_MEMORY_SIZE: usize = 1024;
+
+#[link(name = "agent")]
+extern "C" {
+    fn agent_start(shared_memory: *mut u8, sync_memory: *mut u8);
+}
+
+fn main() {
+    let args: Vec<String> = env::args().collect();
+
+    let shared_fd: c_int = args[1]
+        .parse()
+        .expect("Please provide a valid file descriptor as first argument");
+
+    let sync_fd: c_int = args[2]
+        .parse()
+        .expect("Please provide a valid file descriptor as first argument");
+
+    let shared_memory = unsafe {
+        mmap(
+            ptr::null_mut() as *mut c_void,
+            SHARED_MEMORY_SIZE,
+            PROT_READ | PROT_WRITE,
+            MAP_SHARED,
+            shared_fd,
+            0,
+        )
+    } as *mut u8;
+    assert_ne!(shared_memory, MAP_FAILED as *mut u8);
+
+    let sync_memory = unsafe {
+        mmap(
+            ptr::null_mut() as *mut c_void,
+            SHARED_MEMORY_SIZE,
+            PROT_READ | PROT_WRITE,
+            MAP_SHARED,
+            sync_fd,
+            0,
+        )
+    } as *mut u8;
+    assert_ne!(sync_memory, MAP_FAILED as *mut u8);
+
+    println!("Starting agent...");
+    unsafe {
+        agent_start(shared_memory, sync_memory);
+    }
+}