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Added ability to randomly kill pipelines to the constellation.

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This commit is contained in:
Alan Jeffrey 2016-03-23 16:49:18 -05:00
parent bed91b3334
commit 32c72f0925
9 changed files with 119 additions and 69 deletions
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26
components/util/opts.rs
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@ -146,6 +146,14 @@ pub struct Opts {
/// Whether we're running inside the sandbox.
pub sandbox: bool,
/// Probability of randomly closing a pipeline,
/// used for testing the hardening of the constellation.
pub random_pipeline_closure_probability: Option<f32>,
/// The seed for the RNG used to randomly close pipelines,
/// used for testing the hardening of the constellation.
pub random_pipeline_closure_seed: Option<usize>,
/// Dumps the flow tree after a layout.
pub dump_flow_tree: bool,
@ -282,6 +290,7 @@ pub struct DebugOptions {
/// Use multisample antialiasing in WebRender.
pub use_msaa: bool,
}
@ -485,6 +494,8 @@ pub fn default_opts() -> Opts {
initial_window_size: Size2D::typed(800, 600),
user_agent: default_user_agent_string(DEFAULT_USER_AGENT),
multiprocess: false,
random_pipeline_closure_probability: None,
random_pipeline_closure_seed: None,
sandbox: false,
dump_flow_tree: false,
dump_display_list: false,
@ -538,6 +549,11 @@ pub fn from_cmdline_args(args: &[String]) -> ArgumentParsingResult {
"NCSA Mosaic/1.0 (X11;SunOS 4.1.4 sun4m)");
opts.optflag("M", "multiprocess", "Run in multiprocess mode");
opts.optflag("S", "sandbox", "Run in a sandbox if multiprocess");
opts.optopt("",
"random-pipeline-closure-probability",
"Probability of randomly closing a pipeline (for testing constellation hardening).",
"0.0");
opts.optopt("", "random-pipeline-closure-seed", "A fixed seed for repeatbility of random pipeline closure.", "");
opts.optopt("Z", "debug",
"A comma-separated string of debug options. Pass help to show available options.", "");
opts.optflag("h", "help", "Print this message");
@ -649,6 +665,14 @@ pub fn from_cmdline_args(args: &[String]) -> ArgumentParsingResult {
let nonincremental_layout = opt_match.opt_present("i");
let random_pipeline_closure_probability = opt_match.opt_str("random-pipeline-closure-probability").map(|prob|
prob.parse().expect("Error parsing option: --random-pipeline-closure-probability")
);
let random_pipeline_closure_seed = opt_match.opt_str("random-pipeline-closure-seed").map(|seed|
seed.parse().expect("Error parsing option: --random-pipeline-closure-seed")
);
let mut bubble_inline_sizes_separately = debug_options.bubble_widths;
if debug_options.trace_layout {
paint_threads = 1;
@ -737,6 +761,8 @@ pub fn from_cmdline_args(args: &[String]) -> ArgumentParsingResult {
user_agent: user_agent,
multiprocess: opt_match.opt_present("M"),
sandbox: opt_match.opt_present("S"),
random_pipeline_closure_probability: random_pipeline_closure_probability,
random_pipeline_closure_seed: random_pipeline_closure_seed,
render_api: render_api,
show_debug_borders: debug_options.show_compositor_borders,
show_debug_fragment_borders: debug_options.show_fragment_borders,