Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 84 insertions, 0 deletions

diff --git a/media/audioipc/client/src/lib.rs b/media/audioipc/client/src/lib.rs
new file mode 100644
index 0000000000..b9363ea2df
--- /dev/null
+++ b/media/audioipc/client/src/lib.rs
@@ -0,0 +1,84 @@
+// Copyright © 2017 Mozilla Foundation
+//
+// This program is made available under an ISC-style license.  See the
+// accompanying file LICENSE for details.
+#![warn(unused_extern_crates)]
+
+#[macro_use]
+extern crate cubeb_backend;
+#[macro_use]
+extern crate log;
+
+#[macro_use]
+mod send_recv;
+mod context;
+mod stream;
+
+use crate::context::ClientContext;
+use crate::stream::ClientStream;
+use audioipc::PlatformHandleType;
+use cubeb_backend::{capi, ffi};
+use std::os::raw::{c_char, c_int};
+
+thread_local!(static IN_CALLBACK: std::cell::RefCell<bool> = std::cell::RefCell::new(false));
+thread_local!(static AUDIOIPC_INIT_PARAMS: std::cell::RefCell<Option<AudioIpcInitParams>> = std::cell::RefCell::new(None));
+
+// This must match the definition of AudioIpcInitParams in
+// dom/media/CubebUtils.cpp in Gecko.
+#[repr(C)]
+#[derive(Clone, Copy, Debug)]
+pub struct AudioIpcInitParams {
+    // Fields only need to be public for ipctest.
+    pub server_connection: PlatformHandleType,
+    pub pool_size: usize,
+    pub stack_size: usize,
+    pub thread_create_callback: Option<extern "C" fn(*const ::std::os::raw::c_char)>,
+    pub thread_destroy_callback: Option<extern "C" fn()>,
+}
+
+unsafe impl Send for AudioIpcInitParams {}
+
+fn set_in_callback(in_callback: bool) {
+    IN_CALLBACK.with(|b| {
+        assert_eq!(*b.borrow(), !in_callback);
+        *b.borrow_mut() = in_callback;
+    });
+}
+
+fn run_in_callback<F, R>(f: F) -> R
+where
+    F: FnOnce() -> R,
+{
+    set_in_callback(true);
+
+    let r = f();
+
+    set_in_callback(false);
+
+    r
+}
+
+fn assert_not_in_callback() {
+    IN_CALLBACK.with(|b| {
+        assert_eq!(*b.borrow(), false);
+    });
+}
+
+#[no_mangle]
+/// Entry point from C code.
+pub unsafe extern "C" fn audioipc_client_init(
+    c: *mut *mut ffi::cubeb,
+    context_name: *const c_char,
+    init_params: *const AudioIpcInitParams,
+) -> c_int {
+    if init_params.is_null() {
+        return cubeb_backend::ffi::CUBEB_ERROR;
+    }
+
+    let init_params = &*init_params;
+
+    AUDIOIPC_INIT_PARAMS.with(|p| {
+        *p.borrow_mut() = Some(*init_params);
+    });
+    capi::capi_init::<ClientContext>(c, context_name)
+}