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https://github.com/servo/servo.git
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Move spawn_multiprocess into UnprivilegedPipelineContent.
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Ms2ger
parent
cc83cb8b09
commit
82832f134b
2 changed files with 69 additions and 71 deletions
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@ -19,14 +19,8 @@ use compositing::compositor_thread::Msg as ToCompositorMsg;
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use devtools_traits::{ChromeToDevtoolsControlMsg, DevtoolsControlMsg};
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use euclid::scale_factor::ScaleFactor;
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use euclid::size::{Size2D, TypedSize2D};
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#[cfg(not(target_os = "windows"))]
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use gaol;
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#[cfg(not(target_os = "windows"))]
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use gaol::sandbox::{self, Sandbox, SandboxMethods};
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use gfx::font_cache_thread::FontCacheThread;
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use gfx_traits::Epoch;
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#[cfg(not(target_os = "windows"))]
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use ipc_channel::ipc::IpcOneShotServer;
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use ipc_channel::ipc::{self, IpcSender};
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use ipc_channel::router::ROUTER;
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use layout_traits::{LayoutControlChan, LayoutThreadFactory};
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@ -43,12 +37,10 @@ use net_traits::image_cache_thread::ImageCacheThread;
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use net_traits::storage_thread::StorageThreadMsg;
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use net_traits::{self, ResourceThreads, IpcSend};
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use offscreen_gl_context::{GLContextAttributes, GLLimits};
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use pipeline::{InitialPipelineState, Pipeline, UnprivilegedPipelineContent};
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use pipeline::{ChildProcess, InitialPipelineState, Pipeline};
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use profile_traits::mem;
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use profile_traits::time;
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use rand::{random, Rng, SeedableRng, StdRng};
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#[cfg(not(target_os = "windows"))]
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use sandboxing::content_process_sandbox_profile;
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use script_traits::{AnimationState, AnimationTickType, CompositorEvent};
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use script_traits::{ConstellationControlMsg, ConstellationMsg as FromCompositorMsg};
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use script_traits::{DocumentState, LayoutControlMsg};
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@ -57,8 +49,6 @@ use script_traits::{LayoutMsg as FromLayoutMsg, ScriptMsg as FromScriptMsg, Scri
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use script_traits::{MozBrowserEvent, MozBrowserErrorType};
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use std::borrow::ToOwned;
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use std::collections::HashMap;
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#[cfg(not(target_os = "windows"))]
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use std::env;
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use std::io::Error as IOError;
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use std::marker::PhantomData;
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use std::mem::replace;
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@ -312,13 +302,6 @@ enum ExitPipelineMode {
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Force,
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}
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enum ChildProcess {
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#[cfg(not(target_os = "windows"))]
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Sandboxed(gaol::platform::process::Process),
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#[cfg(not(target_os = "windows"))]
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Unsandboxed(process::Child),
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}
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impl<Message, LTF, STF> Constellation<Message, LTF, STF>
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where LTF: LayoutThreadFactory<Message=Message>,
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STF: ScriptThreadFactory<Message=Message>
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@ -455,7 +438,10 @@ impl<Message, LTF, STF> Constellation<Message, LTF, STF>
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//
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// Yes, that's all there is to it!
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if opts::multiprocess() {
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self.spawn_multiprocess(pipeline_id, unprivileged_pipeline_content);
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match unprivileged_pipeline_content.spawn_multiprocess() {
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Ok(child_process) => self.child_processes.push(child_process),
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Err(e) => self.handle_send_error(pipeline_id, e),
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}
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} else {
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unprivileged_pipeline_content.start_all::<Message, LTF, STF>(false);
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}
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@ -465,58 +451,6 @@ impl<Message, LTF, STF> Constellation<Message, LTF, STF>
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self.pipelines.insert(pipeline_id, pipeline);
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}
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#[cfg(not(target_os = "windows"))]
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fn spawn_multiprocess(&mut self,
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pipeline_id: PipelineId,
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unprivileged_pipeline_content: UnprivilegedPipelineContent)
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{
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// Note that this function can panic, due to process creation,
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// avoiding this panic would require a mechanism for dealing
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// with low-resource scenarios.
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let (server, token) =
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IpcOneShotServer::<IpcSender<UnprivilegedPipelineContent>>::new()
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.expect("Failed to create IPC one-shot server.");
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// If there is a sandbox, use the `gaol` API to create the child process.
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let child_process = if opts::get().sandbox {
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let mut command = sandbox::Command::me().expect("Failed to get current sandbox.");
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command.arg("--content-process").arg(token);
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if let Ok(value) = env::var("RUST_BACKTRACE") {
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command.env("RUST_BACKTRACE", value);
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}
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let profile = content_process_sandbox_profile();
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ChildProcess::Sandboxed(Sandbox::new(profile).start(&mut command)
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.expect("Failed to start sandboxed child process!"))
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} else {
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let path_to_self = env::current_exe()
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.expect("Failed to get current executor.");
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let mut child_process = process::Command::new(path_to_self);
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child_process.arg("--content-process");
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child_process.arg(token);
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if let Ok(value) = env::var("RUST_BACKTRACE") {
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child_process.env("RUST_BACKTRACE", value);
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}
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ChildProcess::Unsandboxed(child_process.spawn()
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.expect("Failed to start unsandboxed child process!"))
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};
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self.child_processes.push(child_process);
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let (_receiver, sender) = server.accept().expect("Server failed to accept.");
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if let Err(e) = sender.send(unprivileged_pipeline_content) {
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self.handle_send_error(pipeline_id, e);
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}
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}
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#[cfg(target_os = "windows")]
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fn spawn_multiprocess(&mut self, _: PipelineId, _: UnprivilegedPipelineContent) {
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error!("Multiprocess is not supported on Windows.");
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process::exit(1);
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}
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// Push a new (loading) pipeline to the list of pending frame changes
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fn push_pending_frame(&mut self, new_pipeline_id: PipelineId,
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old_pipeline_id: Option<PipelineId>) {
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@ -8,6 +8,8 @@ use compositing::compositor_thread::Msg as CompositorMsg;
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use devtools_traits::{DevtoolsControlMsg, ScriptToDevtoolsControlMsg};
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use euclid::scale_factor::ScaleFactor;
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use euclid::size::TypedSize2D;
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#[cfg(not(target_os = "windows"))]
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use gaol;
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use gfx::font_cache_thread::FontCacheThread;
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use gfx::paint_thread::{ChromeToPaintMsg, LayoutToPaintMsg, PaintThread};
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use ipc_channel::ipc::{self, IpcReceiver, IpcSender};
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@ -25,7 +27,9 @@ use script_traits::{ConstellationControlMsg, InitialScriptState, MozBrowserEvent
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use script_traits::{LayoutControlMsg, LayoutMsg, NewLayoutInfo, ScriptMsg};
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use script_traits::{ScriptThreadFactory, TimerEventRequest};
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use std::collections::HashMap;
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use std::io::Error as IOError;
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use std::mem;
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use std::process;
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use std::sync::mpsc::{Receiver, Sender, channel};
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use url::Url;
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use util;
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@ -35,6 +39,13 @@ use util::opts::{self, Opts};
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use util::prefs::{self, Pref};
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use webrender_traits;
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pub enum ChildProcess {
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#[cfg(not(target_os = "windows"))]
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Sandboxed(gaol::platform::process::Process),
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#[cfg(not(target_os = "windows"))]
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Unsandboxed(process::Child),
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}
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/// A uniquely-identifiable pipeline of script thread, layout thread, and paint thread.
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pub struct Pipeline {
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pub id: PipelineId,
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@ -447,6 +458,59 @@ impl UnprivilegedPipelineContent {
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}
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}
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#[cfg(not(target_os = "windows"))]
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pub fn spawn_multiprocess(self) -> Result<ChildProcess, IOError> {
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use gaol::sandbox::{self, Sandbox, SandboxMethods};
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use ipc_channel::ipc::IpcOneShotServer;
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use sandboxing::content_process_sandbox_profile;
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use std::env;
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// Note that this function can panic, due to process creation,
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// avoiding this panic would require a mechanism for dealing
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// with low-resource scenarios.
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let (server, token) =
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IpcOneShotServer::<IpcSender<UnprivilegedPipelineContent>>::new()
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.expect("Failed to create IPC one-shot server.");
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// If there is a sandbox, use the `gaol` API to create the child process.
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let child_process = if opts::get().sandbox {
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let mut command = sandbox::Command::me().expect("Failed to get current sandbox.");
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command.arg("--content-process").arg(token);
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if let Ok(value) = env::var("RUST_BACKTRACE") {
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command.env("RUST_BACKTRACE", value);
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}
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let profile = content_process_sandbox_profile();
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ChildProcess::Sandboxed(Sandbox::new(profile).start(&mut command)
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.expect("Failed to start sandboxed child process!"))
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} else {
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let path_to_self = env::current_exe()
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.expect("Failed to get current executor.");
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let mut child_process = process::Command::new(path_to_self);
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child_process.arg("--content-process");
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child_process.arg(token);
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if let Ok(value) = env::var("RUST_BACKTRACE") {
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child_process.env("RUST_BACKTRACE", value);
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}
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ChildProcess::Unsandboxed(child_process.spawn()
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.expect("Failed to start unsandboxed child process!"))
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};
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let (_receiver, sender) = server.accept().expect("Server failed to accept.");
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try!(sender.send(self));
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Ok(child_process)
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}
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#[cfg(target_os = "windows")]
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pub fn spawn_multiprocess(self) -> Result<ChildProcess, IOError> {
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error!("Multiprocess is not supported on Windows.");
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process::exit(1);
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}
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pub fn opts(&self) -> Opts {
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self.opts.clone()
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}
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