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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
use std::collections::HashMap;
use std::sync::atomic::AtomicBool;
use std::sync::Arc;
use base::id::PipelineId;
use crate::dom::bindings::cell::DomRefCell;
use crate::script_runtime::ScriptChan;
use crate::task::TaskCanceller;
use crate::task_source::{TaskSource, TaskSourceName};
macro_rules! task_source_functions {
($self:ident, $task_source:ident) => {
pub(crate) fn $task_source(&$self) -> TaskSource {
$self.$task_source.clone()
}
};
($self:ident, $with_canceller:ident, $task_source:ident) => {
pub(crate) fn $with_canceller(&$self) -> (TaskSource, TaskCanceller) {
($self.$task_source.clone(), $self.task_canceller($self.$task_source.name))
}
pub(crate) fn $task_source(&$self) -> TaskSource {
$self.$task_source.clone()
}
};
}
#[derive(JSTraceable, MallocSizeOf)]
pub struct TaskManager {
#[ignore_malloc_size_of = "task sources are hard"]
pub task_cancellers: DomRefCell<HashMap<TaskSourceName, Arc<AtomicBool>>>,
dom_manipulation_task_source: TaskSource,
file_reading_task_source: TaskSource,
gamepad_task_source: TaskSource,
history_traversal_task_source: TaskSource,
media_element_task_source: TaskSource,
networking_task_source: TaskSource,
performance_timeline_task_source: TaskSource,
port_message_queue: TaskSource,
user_interaction_task_source: TaskSource,
remote_event_task_source: TaskSource,
rendering_task_source: TaskSource,
timer_task_source: TaskSource,
websocket_task_source: TaskSource,
}
impl TaskManager {
#[allow(clippy::too_many_arguments)]
pub(crate) fn new(sender: Box<dyn ScriptChan + Send>, pipeline_id: PipelineId) -> Self {
let task_source = |name| TaskSource {
sender: sender.as_boxed(),
pipeline_id,
name,
};
TaskManager {
dom_manipulation_task_source: task_source(TaskSourceName::DOMManipulation),
file_reading_task_source: task_source(TaskSourceName::FileReading),
gamepad_task_source: task_source(TaskSourceName::Gamepad),
history_traversal_task_source: task_source(TaskSourceName::HistoryTraversal),
media_element_task_source: task_source(TaskSourceName::MediaElement),
networking_task_source: task_source(TaskSourceName::Networking),
performance_timeline_task_source: task_source(TaskSourceName::PerformanceTimeline),
port_message_queue: task_source(TaskSourceName::PortMessage),
user_interaction_task_source: task_source(TaskSourceName::UserInteraction),
remote_event_task_source: task_source(TaskSourceName::RemoteEvent),
rendering_task_source: task_source(TaskSourceName::Rendering),
timer_task_source: task_source(TaskSourceName::Timer),
websocket_task_source: task_source(TaskSourceName::WebSocket),
task_cancellers: Default::default(),
}
}
task_source_functions!(
self,
dom_manipulation_task_source_with_canceller,
dom_manipulation_task_source
);
task_source_functions!(self, gamepad_task_source);
task_source_functions!(
self,
media_element_task_source_with_canceller,
media_element_task_source
);
task_source_functions!(self, user_interaction_task_source);
task_source_functions!(
self,
networking_task_source_with_canceller,
networking_task_source
);
task_source_functions!(self, file_reading_task_source);
task_source_functions!(self, performance_timeline_task_source);
task_source_functions!(self, port_message_queue);
task_source_functions!(self, remote_event_task_source);
task_source_functions!(self, rendering_task_source);
task_source_functions!(self, timer_task_source);
task_source_functions!(self, websocket_task_source);
pub fn task_canceller(&self, name: TaskSourceName) -> TaskCanceller {
let mut flags = self.task_cancellers.borrow_mut();
let cancel_flag = flags.entry(name).or_default();
TaskCanceller {
cancelled: cancel_flag.clone(),
}
}
}
|
