Import subrepo hid/:hid at 3ac1005fe3e874bef850ab733fe1a09bc36b91c5

1 files changed, 56 insertions, 0 deletions

diff --git a/hid/src/manager.rs b/hid/src/manager.rs
new file mode 100644
index 0000000..4c2eb23
--- /dev/null
+++ b/hid/src/manager.rs
@@ -0,0 +1,56 @@
+use std::sync::atomic::{AtomicBool, ATOMIC_BOOL_INIT, Ordering};
+
+use sys::*;
+use error::{self, Error};
+use devices::Devices;
+
+static INITIALIZED: AtomicBool = ATOMIC_BOOL_INIT;
+
+/// The device manager.
+pub struct Manager;
+
+unsafe impl Send for Manager { }
+
+/// Create the manager.
+pub fn init() -> error::Result<Manager> {
+	if INITIALIZED.load(Ordering::Relaxed) {
+		return Err(Error::Initialized);
+	}
+
+	let status = unsafe { hid_init() };
+
+	if status != 0 {
+		return Err(Error::from(status));
+	}
+
+	INITIALIZED.store(true, Ordering::Relaxed);
+
+	Ok(Manager)
+}
+
+impl Drop for Manager {
+	fn drop(&mut self) {
+		let status = unsafe { hid_exit() };
+
+		if status != 0 {
+			panic!("hid_exit() failed");
+		}
+
+		INITIALIZED.store(false, Ordering::Relaxed);
+	}
+}
+
+impl Manager {
+	/// Find the wanted device, `vendor` or `product` are given it will
+	/// returns only the matches devices.
+	pub fn find(&self, vendor: Option<u16>, product: Option<u16>) -> Devices {
+		unsafe {
+			Devices::new(vendor, product)
+		}
+	}
+
+	/// Return all devices.
+	pub fn devices(&self) -> Devices {
+		self.find(None, None)
+	}
+}