34 lines
1.3 KiB
Rust
34 lines
1.3 KiB
Rust
/// Adjusts resource limits applied to the Warp process (e.g.: the limit on open
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/// file descriptors) to ensure proper behavior.
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pub fn adjust_resource_limits() {
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#[cfg(target_os = "macos")]
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{
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/// Our desired limit on the maximum number of file descriptors we can open.
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///
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/// MacOS sets this value to 256, by default, which can interfere with
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/// normal usage of Warp for users who open lots of tabs.
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const TARGET_FD_LIMIT: u64 = 2560;
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use nix::sys::resource::{getrlimit, setrlimit, Resource::RLIMIT_NOFILE};
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let (cur_limit, hard_limit) = match getrlimit(RLIMIT_NOFILE) {
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Ok(val) => val,
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Err(err) => {
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log::error!("Failed to retrieve resource limit for number of files: {err:#}");
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return;
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}
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};
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log::info!(
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"Initial open file descriptor limit is {cur_limit}, with a hard limit of {hard_limit}"
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);
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let new_limit = TARGET_FD_LIMIT.min(hard_limit);
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if cur_limit < new_limit {
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match setrlimit(RLIMIT_NOFILE, new_limit, hard_limit) {
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Ok(_) => log::info!("Increased open file descriptor limit to {new_limit}"),
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Err(err) => log::error!("Failed to increase open file descriptor limit: {err:#}"),
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}
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}
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}
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}
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