Vendor dependencies

Let's see how I like this workflow.

vendor/procfs/examples/shm.rs

@@ -0,0 +1,29 @@
+extern crate procfs;
+
+/// List processes using posix shared memory segments
+
+fn main() {
+    let shared_memory_vec = procfs::Shm::new().unwrap();
+
+    for shared_memory in &shared_memory_vec {
+        println!("key: {}, shmid: {}", shared_memory.key, shared_memory.shmid);
+        println!("============");
+
+        for prc in procfs::process::all_processes().unwrap() {
+            let prc = prc.unwrap();
+            match prc.smaps() {
+                Ok(memory_maps) => {
+                    for (memory_map, _memory_map_data) in &memory_maps {
+                        if let procfs::process::MMapPath::Vsys(key) = memory_map.pathname {
+                            if key == shared_memory.key && memory_map.inode == shared_memory.shmid {
+                                println!("{}: {:?}", prc.pid, prc.cmdline().unwrap());
+                            }
+                        }
+                    }
+                }
+                Err(_) => continue,
+            }
+        }
+        println!();
+    }
+}