Add Promise bindings

Gir_Gst.toml

@@ -71,6 +71,7 @@ generate = [
     "Gst.DateTime",
     "Gst.TypeFindProbability",
     "Gst.BufferPoolAcquireFlags",
+    "Gst.PromiseResult",
 ]
 
 manual = [
@@ -217,6 +218,11 @@ name = "Gst.TocEntry"
 status = "manual"
 ref_mode = "ref"
 
+[[object]]
+name = "Gst.Promise"
+status = "manual"
+ref_mode = "ref"
+
 [[object]]
 name = "Gst.Clock"
 status = "generate"

gstreamer/src/auto/enums.rs

@@ -1505,6 +1505,76 @@ impl SetValue for ProgressType {
     }
 }
 
+#[cfg(any(feature = "v1_14", feature = "dox"))]
+#[derive(Clone, Copy, Debug, Eq, PartialEq, Hash)]
+pub enum PromiseResult {
+    Pending,
+    Interrupted,
+    Replied,
+    Expired,
+    #[doc(hidden)]
+    __Unknown(i32),
+}
+
+#[cfg(any(feature = "v1_14", feature = "dox"))]
+#[doc(hidden)]
+impl ToGlib for PromiseResult {
+    type GlibType = ffi::GstPromiseResult;
+
+    fn to_glib(&self) -> ffi::GstPromiseResult {
+        match *self {
+            PromiseResult::Pending => ffi::GST_PROMISE_RESULT_PENDING,
+            PromiseResult::Interrupted => ffi::GST_PROMISE_RESULT_INTERRUPTED,
+            PromiseResult::Replied => ffi::GST_PROMISE_RESULT_REPLIED,
+            PromiseResult::Expired => ffi::GST_PROMISE_RESULT_EXPIRED,
+            PromiseResult::__Unknown(value) => value
+        }
+    }
+}
+
+#[cfg(any(feature = "v1_14", feature = "dox"))]
+#[doc(hidden)]
+impl FromGlib<ffi::GstPromiseResult> for PromiseResult {
+    fn from_glib(value: ffi::GstPromiseResult) -> Self {
+        skip_assert_initialized!();
+        match value {
+            0 => PromiseResult::Pending,
+            1 => PromiseResult::Interrupted,
+            2 => PromiseResult::Replied,
+            3 => PromiseResult::Expired,
+            value => PromiseResult::__Unknown(value),
+        }
+    }
+}
+
+#[cfg(any(feature = "v1_14", feature = "dox"))]
+impl StaticType for PromiseResult {
+    fn static_type() -> Type {
+        unsafe { from_glib(ffi::gst_promise_result_get_type()) }
+    }
+}
+
+#[cfg(any(feature = "v1_14", feature = "dox"))]
+impl<'a> FromValueOptional<'a> for PromiseResult {
+    unsafe fn from_value_optional(value: &Value) -> Option<Self> {
+        Some(FromValue::from_value(value))
+    }
+}
+
+#[cfg(any(feature = "v1_14", feature = "dox"))]
+impl<'a> FromValue<'a> for PromiseResult {
+    unsafe fn from_value(value: &Value) -> Self {
+        from_glib(gobject_ffi::g_value_get_enum(value.to_glib_none().0))
+    }
+}
+
+#[cfg(any(feature = "v1_14", feature = "dox"))]
+impl SetValue for PromiseResult {
+    unsafe fn set_value(value: &mut Value, this: &Self) {
+        gobject_ffi::g_value_set_enum(value.to_glib_none_mut().0, this.to_glib())
+    }
+}
+
 #[derive(Clone, Copy, Debug, Eq, PartialEq, Hash)]
 pub enum QOSType {
     Overflow,

gstreamer/src/auto/mod.rs

@@ -132,6 +132,8 @@ pub use self::enums::PadProbeReturn;
 pub use self::enums::ParseError;
 pub use self::enums::PluginError;
 pub use self::enums::ProgressType;
+#[cfg(any(feature = "v1_14", feature = "dox"))]
+pub use self::enums::PromiseResult;
 pub use self::enums::QOSType;
 pub use self::enums::Rank;
 pub use self::enums::ResourceError;

gstreamer/src/lib.rs

@@ -94,6 +94,11 @@ pub use static_caps::*;
 mod static_pad_template;
 pub use static_pad_template::*;
 
+#[cfg(any(feature = "v1_14", feature = "dox"))]
+mod promise;
+#[cfg(any(feature = "v1_14", feature = "dox"))]
+pub use promise::*;
+
 mod element;
 mod bin;
 mod bus;

gstreamer/src/promise.rs

+// Copyright (C) 2018 Sebastian Dröge <sebastian@centricular.com>
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use StructureRef;
+use Structure;
+use ffi;
+use glib::translate::*;
+use glib_ffi;
+use gobject_ffi;
+use std::mem;
+use std::ptr;
+use PromiseResult;
+
+glib_wrapper! {
+    pub struct Promise(Shared<ffi::GstPromise>);
+
+    match fn {
+        ref => |ptr| ffi::gst_mini_object_ref(ptr as *mut _) as *mut ffi::GstPromise,
+        unref => |ptr| ffi::gst_mini_object_unref(ptr as *mut _),
+        get_type => || ffi::gst_promise_get_type(),
+    }
+}
+
+impl Promise {
+    #[cfg(any(feature = "v1_14", feature = "dox"))]
+    pub fn new() -> Promise {
+        assert_initialized_main_thread!();
+        unsafe {
+            from_glib_full(ffi::gst_promise_new())
+        }
+    }
+
+    #[cfg(any(feature = "v1_14", feature = "dox"))]
+    pub fn new_with_change_func<F>(func: F) -> Promise
+      where F: FnOnce(&Promise) + Send + 'static {
+        let user_data: Box<Option<Box<F>>> = Box::new(Some(Box::new(func)));
+
+        unsafe extern "C" fn trampoline<F: FnOnce(&Promise) + Send + 'static>(
+            promise: *mut ffi::GstPromise,
+            user_data: glib_ffi::gpointer,
+        ) {
+            callback_guard!();
+            let user_data: &mut Option<Box<F>> = &mut *(user_data as *mut _);
+            let callback = user_data.take().unwrap();
+
+            callback(&from_glib_borrow(promise));
+        }
+
+        unsafe extern "C" fn free_user_data<F: FnOnce(&Promise) + Send + 'static>(
+            user_data: glib_ffi::gpointer,
+        ) {
+            let _: Box<Option<Box<F>>> = Box::from_raw(user_data as *mut _);
+        }
+
+        let trampoline = trampoline::<F>;
+        let free_user_data = free_user_data::<F>;
+        unsafe {
+            from_glib_full(ffi::gst_promise_new_with_change_func(
+                Some(trampoline),
+                Box::into_raw(user_data) as *mut _,
+                Some(free_user_data),
+            ))
+        }
+    }
+
+    #[cfg(any(feature = "v1_14", feature = "dox"))]
+    pub fn expire(&self) {
+        unsafe {
+            ffi::gst_promise_expire(self.to_glib_none().0);
+        }
+    }
+
+    #[cfg(any(feature = "v1_14", feature = "dox"))]
+    pub fn get_reply(&self) -> Option<&StructureRef> {
+        unsafe {
+            let s = ffi::gst_promise_get_reply(self.to_glib_none().0);
+            if s.is_null() {
+                None
+            } else {
+                Some(StructureRef::from_glib_borrow(s))
+            }
+        }
+    }
+
+    #[cfg(any(feature = "v1_14", feature = "dox"))]
+    pub fn interrupt(&self) {
+        unsafe {
+            ffi::gst_promise_interrupt(self.to_glib_none().0);
+        }
+    }
+
+    #[cfg(any(feature = "v1_14", feature = "dox"))]
+    pub fn reply(&self, s: Structure) {
+        unsafe {
+            ffi::gst_promise_reply(self.to_glib_none().0, s.into_ptr());
+        }
+    }
+
+    #[cfg(any(feature = "v1_14", feature = "dox"))]
+    pub fn wait(&self) -> PromiseResult {
+        unsafe {
+            from_glib(ffi::gst_promise_wait(self.to_glib_none().0))
+        }
+    }
+}
+
+#[cfg(any(feature = "v1_14", feature = "dox"))]
+impl Default for Promise {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
+unsafe impl Send for Promise {}
+unsafe impl Sync for Promise {}