Initial vendor packages

Signed-off-by: Valentin Popov <valentin@popov.link>

1 files changed, 25 insertions, 0 deletions

diff --git a/vendor/rustix/src/backend/libc/shm/syscalls.rs b/vendor/rustix/src/backend/libc/shm/syscalls.rs
new file mode 100644
index 0000000..b0d907f
--- /dev/null
+++ b/vendor/rustix/src/backend/libc/shm/syscalls.rs
@@ -0,0 +1,25 @@
+use crate::ffi::CStr;
+
+use crate::backend::c;
+use crate::backend::conv::{c_str, ret, ret_owned_fd};
+use crate::fd::OwnedFd;
+use crate::fs::Mode;
+use crate::io;
+use crate::shm::ShmOFlags;
+
+pub(crate) fn shm_open(name: &CStr, oflags: ShmOFlags, mode: Mode) -> io::Result<OwnedFd> {
+    // On this platforms, `mode_t` is `u16` and can't be passed directly to a
+    // variadic function.
+    #[cfg(apple)]
+    let mode: c::c_uint = mode.bits().into();
+
+    // Otherwise, cast to `mode_t` as that's what `open` is documented to take.
+    #[cfg(not(apple))]
+    let mode: c::mode_t = mode.bits() as _;
+
+    unsafe { ret_owned_fd(c::shm_open(c_str(name), bitflags_bits!(oflags), mode)) }
+}
+
+pub(crate) fn shm_unlink(name: &CStr) -> io::Result<()> {
+    unsafe { ret(c::shm_unlink(c_str(name))) }
+}