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authorValentin Popov <valentin@popov.link>2024-01-08 00:21:28 +0300
committerValentin Popov <valentin@popov.link>2024-01-08 00:21:28 +0300
commit1b6a04ca5504955c571d1c97504fb45ea0befee4 (patch)
tree7579f518b23313e8a9748a88ab6173d5e030b227 /vendor/rustix/src/backend/libc/fs/makedev.rs
parent5ecd8cf2cba827454317368b68571df0d13d7842 (diff)
downloadfparkan-1b6a04ca5504955c571d1c97504fb45ea0befee4.tar.xz
fparkan-1b6a04ca5504955c571d1c97504fb45ea0befee4.zip
Initial vendor packages
Signed-off-by: Valentin Popov <valentin@popov.link>
Diffstat (limited to 'vendor/rustix/src/backend/libc/fs/makedev.rs')
-rw-r--r--vendor/rustix/src/backend/libc/fs/makedev.rs138
1 files changed, 138 insertions, 0 deletions
diff --git a/vendor/rustix/src/backend/libc/fs/makedev.rs b/vendor/rustix/src/backend/libc/fs/makedev.rs
new file mode 100644
index 0000000..aa12102
--- /dev/null
+++ b/vendor/rustix/src/backend/libc/fs/makedev.rs
@@ -0,0 +1,138 @@
+#[cfg(not(all(target_os = "android", target_pointer_width = "32")))]
+use crate::backend::c;
+use crate::fs::Dev;
+
+#[cfg(not(any(
+ apple,
+ solarish,
+ target_os = "aix",
+ target_os = "android",
+ target_os = "emscripten",
+)))]
+#[inline]
+pub(crate) fn makedev(maj: u32, min: u32) -> Dev {
+ c::makedev(maj, min)
+}
+
+#[cfg(solarish)]
+pub(crate) fn makedev(maj: u32, min: u32) -> Dev {
+ // SAFETY: Solarish's `makedev` is marked unsafe but it isn't doing
+ // anything unsafe.
+ unsafe { c::makedev(maj, min) }
+}
+
+#[cfg(all(target_os = "android", not(target_pointer_width = "32")))]
+#[inline]
+pub(crate) fn makedev(maj: u32, min: u32) -> Dev {
+ c::makedev(maj, min)
+}
+
+#[cfg(all(target_os = "android", target_pointer_width = "32"))]
+#[inline]
+pub(crate) fn makedev(maj: u32, min: u32) -> Dev {
+ // 32-bit Android's `dev_t` is 32-bit, but its `st_dev` is 64-bit, so we do
+ // it ourselves.
+ ((u64::from(maj) & 0xffff_f000_u64) << 32)
+ | ((u64::from(maj) & 0x0000_0fff_u64) << 8)
+ | ((u64::from(min) & 0xffff_ff00_u64) << 12)
+ | (u64::from(min) & 0x0000_00ff_u64)
+}
+
+#[cfg(target_os = "emscripten")]
+#[inline]
+pub(crate) fn makedev(maj: u32, min: u32) -> Dev {
+ // Emscripten's `makedev` has a 32-bit return value.
+ Dev::from(c::makedev(maj, min))
+}
+
+#[cfg(apple)]
+#[inline]
+pub(crate) fn makedev(maj: u32, min: u32) -> Dev {
+ // Apple's `makedev` oddly has signed argument types and is `unsafe`.
+ unsafe { c::makedev(maj as i32, min as i32) }
+}
+
+#[cfg(target_os = "aix")]
+#[inline]
+pub(crate) fn makedev(maj: u32, min: u32) -> Dev {
+ // AIX's `makedev` oddly is `unsafe`.
+ unsafe { c::makedev(maj, min) }
+}
+
+#[cfg(not(any(
+ apple,
+ freebsdlike,
+ target_os = "android",
+ target_os = "emscripten",
+ target_os = "netbsd"
+)))]
+#[inline]
+pub(crate) fn major(dev: Dev) -> u32 {
+ unsafe { c::major(dev) }
+}
+
+#[cfg(any(
+ apple,
+ freebsdlike,
+ target_os = "netbsd",
+ all(target_os = "android", not(target_pointer_width = "32")),
+))]
+#[inline]
+pub(crate) fn major(dev: Dev) -> u32 {
+ // On some platforms `major` oddly has signed return types.
+ (unsafe { c::major(dev) }) as u32
+}
+
+#[cfg(all(target_os = "android", target_pointer_width = "32"))]
+#[inline]
+pub(crate) fn major(dev: Dev) -> u32 {
+ // 32-bit Android's `dev_t` is 32-bit, but its `st_dev` is 64-bit, so we do
+ // it ourselves.
+ (((dev >> 31 >> 1) & 0xffff_f000) | ((dev >> 8) & 0x0000_0fff)) as u32
+}
+
+#[cfg(target_os = "emscripten")]
+#[inline]
+pub(crate) fn major(dev: Dev) -> u32 {
+ // Emscripten's `major` has a 32-bit argument value.
+ unsafe { c::major(dev as u32) }
+}
+
+#[cfg(not(any(
+ apple,
+ freebsdlike,
+ target_os = "android",
+ target_os = "emscripten",
+ target_os = "netbsd"
+)))]
+#[inline]
+pub(crate) fn minor(dev: Dev) -> u32 {
+ unsafe { c::minor(dev) }
+}
+
+#[cfg(any(
+ apple,
+ freebsdlike,
+ target_os = "netbsd",
+ all(target_os = "android", not(target_pointer_width = "32"))
+))]
+#[inline]
+pub(crate) fn minor(dev: Dev) -> u32 {
+ // On some platforms, `minor` oddly has signed return types.
+ (unsafe { c::minor(dev) }) as u32
+}
+
+#[cfg(all(target_os = "android", target_pointer_width = "32"))]
+#[inline]
+pub(crate) fn minor(dev: Dev) -> u32 {
+ // 32-bit Android's `dev_t` is 32-bit, but its `st_dev` is 64-bit, so we do
+ // it ourselves.
+ (((dev >> 12) & 0xffff_ff00) | (dev & 0x0000_00ff)) as u32
+}
+
+#[cfg(target_os = "emscripten")]
+#[inline]
+pub(crate) fn minor(dev: Dev) -> u32 {
+ // Emscripten's `minor` has a 32-bit argument value.
+ unsafe { c::minor(dev as u32) }
+}