diff options
Diffstat (limited to 'vendor/rustix/src/backend/libc/mm/syscalls.rs')
| -rw-r--r-- | vendor/rustix/src/backend/libc/mm/syscalls.rs | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/vendor/rustix/src/backend/libc/mm/syscalls.rs b/vendor/rustix/src/backend/libc/mm/syscalls.rs index 4b23a58b7..33bc9cac1 100644 --- a/vendor/rustix/src/backend/libc/mm/syscalls.rs +++ b/vendor/rustix/src/backend/libc/mm/syscalls.rs @@ -2,6 +2,8 @@ #[cfg(not(target_os = "redox"))] use super::types::Advice; +#[cfg(any(linux_kernel, freebsdlike, netbsdlike))] +use super::types::MlockAllFlags; #[cfg(any(target_os = "emscripten", target_os = "linux"))] use super::types::MremapFlags; use super::types::{MapFlags, MprotectFlags, MsyncFlags, ProtFlags}; @@ -220,3 +222,23 @@ pub(crate) unsafe fn userfaultfd(flags: UserfaultfdFlags) -> io::Result<OwnedFd> } ret_owned_fd(userfaultfd(bitflags_bits!(flags))) } + +/// Locks all pages mapped into the address space of the calling process. +/// +/// This includes the pages of the code, data, and stack segment, as well as +/// shared libraries, user space kernel data, shared memory, and memory-mapped +/// files. All mapped pages are guaranteed to be resident in RAM when the call +/// returns successfully; the pages are guaranteed to stay in RAM until later +/// unlocked. +#[inline] +#[cfg(any(linux_kernel, freebsdlike, netbsdlike))] +pub(crate) fn mlockall(flags: MlockAllFlags) -> io::Result<()> { + unsafe { ret(c::mlockall(bitflags_bits!(flags))) } +} + +/// Unlocks all pages mapped into the address space of the calling process. +#[inline] +#[cfg(any(linux_kernel, freebsdlike, netbsdlike))] +pub(crate) fn munlockall() -> io::Result<()> { + unsafe { ret(c::munlockall()) } +} |