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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 js::jsapi::JSObject;
use servo_config::pref;
use crate::dom::bindings::codegen::RegisterBindings;
use crate::dom::bindings::conversions::is_dom_proxy;
use crate::dom::bindings::proxyhandler;
use crate::dom::bindings::utils::is_platform_object_static;
use crate::script_runtime::JSEngineSetup;
#[cfg(target_os = "linux")]
#[allow(unsafe_code)]
fn perform_platform_specific_initialization() {
// 4096 is default max on many linux systems
const MAX_FILE_LIMIT: libc::rlim_t = 4096;
// Bump up our number of file descriptors to save us from impending doom caused by an onslaught
// of iframes.
unsafe {
let mut rlim = libc::rlimit {
rlim_cur: 0,
rlim_max: 0,
};
match libc::getrlimit(libc::RLIMIT_NOFILE, &mut rlim) {
0 => {
if rlim.rlim_cur >= MAX_FILE_LIMIT {
// we have more than enough
return;
}
rlim.rlim_cur = match rlim.rlim_max {
libc::RLIM_INFINITY => MAX_FILE_LIMIT,
_ => {
if rlim.rlim_max < MAX_FILE_LIMIT {
rlim.rlim_max
} else {
MAX_FILE_LIMIT
}
},
};
match libc::setrlimit(libc::RLIMIT_NOFILE, &rlim) {
0 => (),
_ => warn!("Failed to set file count limit"),
};
},
_ => warn!("Failed to get file count limit"),
};
}
}
#[cfg(not(target_os = "linux"))]
fn perform_platform_specific_initialization() {}
#[allow(unsafe_code)]
unsafe extern "C" fn is_dom_object(obj: *mut JSObject) -> bool {
!obj.is_null() && (is_platform_object_static(obj) || is_dom_proxy(obj))
}
#[allow(unsafe_code)]
pub fn init() -> JSEngineSetup {
unsafe {
if pref!(js.disable_jit) {
js::jsapi::DisableJitBackend();
}
proxyhandler::init();
// Create the global vtables used by the (generated) DOM
// bindings to implement JS proxies.
RegisterBindings::RegisterProxyHandlers();
RegisterBindings::InitAllStatics();
js::glue::InitializeMemoryReporter(Some(is_dom_object));
}
perform_platform_specific_initialization();
JSEngineSetup::default()
}
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