25 lines
762 B
Rust
25 lines
762 B
Rust
// SPDX-License-Identifier: MPL-2.0
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use crate::{
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fs::{
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path::{FsPath, PathResolver, PerMountFlags},
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ramfs::RamFs,
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utils::{InodeType, chmod},
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},
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prelude::*,
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};
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/// Initializes "/dev/shm" for POSIX shared memory usage.
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pub fn init_in_first_process(path_resolver: &PathResolver, ctx: &Context) -> Result<()> {
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use crate::fs::utils::InodeMode;
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let dev_path = path_resolver.lookup(&FsPath::try_from("/dev")?)?;
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// Create the "shm" directory under "/dev" and mount a ramfs on it.
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let shm_path =
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dev_path.new_fs_child("shm", InodeType::Dir, chmod!(InodeMode::S_ISVTX, a+rwx))?;
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shm_path.mount(RamFs::new(), PerMountFlags::default(), ctx)?;
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log::debug!("Mount RamFs at \"/dev/shm\"");
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Ok(())
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}
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