core-foundation: Add basic CFMachPort

Author: AsafFisher

core-foundation-sys/src/lib.rs

@@ -29,3 +29,4 @@ pub mod string;
 pub mod timezone;
 pub mod url;
 pub mod uuid;
+pub mod mach_port;

core-foundation-sys/src/mach_port.rs

@@ -0,0 +1,20 @@
+pub use base::{CFAllocatorRef, CFIndex, CFTypeID};
+use runloop::CFRunLoopSourceRef;
+use std::os::raw::c_void;
+
+#[repr(C)]
+pub struct __CFMachPort(c_void);
+pub type CFMachPortRef = *const __CFMachPort;
+
+extern "C" {
+    /*
+     * CFMachPort.h
+     */
+    pub fn CFMachPortCreateRunLoopSource(
+        allocator: CFAllocatorRef,
+        port: CFMachPortRef,
+        order: CFIndex,
+    ) -> CFRunLoopSourceRef;
+    
+    pub fn CFMachPortGetTypeID() -> CFTypeID;
+}

core-foundation/src/lib.rs

@@ -233,3 +233,4 @@ pub mod propertylist;
 pub mod runloop;
 pub mod timezone;
 pub mod uuid;
+pub mod mach_port;

core-foundation/src/mach_port.rs

@@ -0,0 +1,28 @@
+use base::TCFType;
+use core_foundation_sys::base::kCFAllocatorDefault;
+use runloop::CFRunLoopSource;
+pub use core_foundation_sys::mach_port::*;
+
+
+declare_TCFType! {
+    /// An immutable numeric value.
+    CFMachPort, CFMachPortRef
+}
+impl_TCFType!(CFMachPort, CFMachPortRef, CFMachPortGetTypeID);
+impl_CFTypeDescription!(CFMachPort);
+
+impl CFMachPort {
+    pub fn create_runloop_source(
+        &self,
+        order: CFIndex,
+    ) -> Result<CFRunLoopSource, ()> {
+        unsafe {
+            let runloop_source_ref = CFMachPortCreateRunLoopSource(kCFAllocatorDefault, self.0, order);
+            if runloop_source_ref.is_null() {
+                Err(())
+            } else {
+                Ok(CFRunLoopSource::wrap_under_create_rule(runloop_source_ref))
+            }
+        }
+    }
+}