gecko-dev/servo/components/profile_traits/time.rs
Connor Imes 2ef2604ce5 servo: Merge #7547 - Combine script profiling with profile crates. Fixes #7514 (from connorimes:move_script_profiling); r=jdm
The script crate had its own built-in profiling which was basically doing the same thing as the profile crate.  This wraps the internal profiling around the main profile functionality.  Script-related tasks are now added to the ProfilerCategory enum.

Source-Repo: https://github.com/servo/servo
Source-Revision: ca36779a7e8298918b21ae243a43a71b1520119b
2015-09-08 09:32:56 -06:00

111 lines
2.9 KiB
Rust

/* 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 http://mozilla.org/MPL/2.0/. */
extern crate time as std_time;
extern crate url;
use ipc_channel::ipc::IpcSender;
use self::std_time::precise_time_ns;
use self::url::Url;
#[derive(PartialEq, Clone, PartialOrd, Eq, Ord, Deserialize, Serialize)]
pub struct TimerMetadata {
pub url: String,
pub iframe: bool,
pub incremental: bool,
}
#[derive(Clone, Deserialize, Serialize)]
pub struct ProfilerChan(pub IpcSender<ProfilerMsg>);
impl ProfilerChan {
pub fn send(&self, msg: ProfilerMsg) {
let ProfilerChan(ref c) = *self;
c.send(msg).unwrap();
}
}
#[derive(Clone, Deserialize, Serialize)]
pub enum ProfilerMsg {
/// Normal message used for reporting time
Time((ProfilerCategory, Option<TimerMetadata>), (u64, u64)),
/// Message used to force print the profiling metrics
Print,
/// Tells the profiler to shut down.
Exit,
}
#[repr(u32)]
#[derive(PartialEq, Clone, PartialOrd, Eq, Ord, Deserialize, Serialize, Debug, Hash)]
pub enum ProfilerCategory {
Compositing,
LayoutPerform,
LayoutStyleRecalc,
LayoutRestyleDamagePropagation,
LayoutNonIncrementalReset,
LayoutSelectorMatch,
LayoutTreeBuilder,
LayoutDamagePropagate,
LayoutGeneratedContent,
LayoutMain,
LayoutParallelWarmup,
LayoutShaping,
LayoutDispListBuild,
PaintingPerTile,
PaintingPrepBuff,
Painting,
ImageDecoding,
ScriptAttachLayout,
ScriptConstellationMsg,
ScriptDevtoolsMsg,
ScriptDocumentEvent,
ScriptDomEvent,
ScriptFileRead,
ScriptImageCacheMsg,
ScriptInputEvent,
ScriptNetworkEvent,
ScriptResize,
ScriptEvent,
ScriptUpdateReplacedElement,
ScriptSetViewport,
ScriptWebSocketEvent,
ScriptWorkerEvent,
ScriptXhrEvent,
}
#[derive(Eq, PartialEq)]
pub enum TimerMetadataFrameType {
RootWindow,
IFrame,
}
#[derive(Eq, PartialEq)]
pub enum TimerMetadataReflowType {
Incremental,
FirstReflow,
}
pub type ProfilerMetadata<'a> =
Option<(&'a Url, TimerMetadataFrameType, TimerMetadataReflowType)>;
pub fn profile<T, F>(category: ProfilerCategory,
meta: ProfilerMetadata,
profiler_chan: ProfilerChan,
callback: F)
-> T
where F: FnOnce() -> T
{
let start_time = precise_time_ns();
let val = callback();
let end_time = precise_time_ns();
let meta = meta.map(|(url, iframe, reflow_type)|
TimerMetadata {
url: url.serialize(),
iframe: iframe == TimerMetadataFrameType::IFrame,
incremental: reflow_type == TimerMetadataReflowType::Incremental,
});
profiler_chan.send(ProfilerMsg::Time((category, meta), (start_time, end_time)));
return val;
}