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-rw-r--r--third_party/rust/dbus/src/arg/basic_impl.rs308
1 files changed, 308 insertions, 0 deletions
diff --git a/third_party/rust/dbus/src/arg/basic_impl.rs b/third_party/rust/dbus/src/arg/basic_impl.rs
new file mode 100644
index 0000000000..66d2a0ee74
--- /dev/null
+++ b/third_party/rust/dbus/src/arg/basic_impl.rs
@@ -0,0 +1,308 @@
+use ffi;
+use super::*;
+use super::check;
+use {Signature, Path, OwnedFd};
+use std::{ptr, any, mem};
+use std::ffi::CStr;
+use std::os::raw::{c_void, c_char, c_int};
+
+
+fn arg_append_basic<T>(i: *mut ffi::DBusMessageIter, arg_type: ArgType, v: T) {
+ let p = &v as *const _ as *const c_void;
+ unsafe {
+ check("dbus_message_iter_append_basic", ffi::dbus_message_iter_append_basic(i, arg_type as c_int, p));
+ };
+}
+
+fn arg_get_basic<T>(i: *mut ffi::DBusMessageIter, arg_type: ArgType) -> Option<T> {
+ unsafe {
+ let mut c: T = mem::zeroed();
+ if ffi::dbus_message_iter_get_arg_type(i) != arg_type as c_int { return None };
+ ffi::dbus_message_iter_get_basic(i, &mut c as *mut _ as *mut c_void);
+ Some(c)
+ }
+}
+
+fn arg_append_f64(i: *mut ffi::DBusMessageIter, arg_type: ArgType, v: f64) {
+ let p = &v as *const _ as *const c_void;
+ unsafe {
+ check("dbus_message_iter_append_basic", ffi::dbus_message_iter_append_basic(i, arg_type as c_int, p));
+ };
+}
+
+fn arg_get_f64(i: *mut ffi::DBusMessageIter, arg_type: ArgType) -> Option<f64> {
+ let mut c = 0f64;
+ unsafe {
+ if ffi::dbus_message_iter_get_arg_type(i) != arg_type as c_int { return None };
+ ffi::dbus_message_iter_get_basic(i, &mut c as *mut _ as *mut c_void);
+ }
+ Some(c)
+}
+
+fn arg_append_str(i: *mut ffi::DBusMessageIter, arg_type: ArgType, v: &CStr) {
+ let p = v.as_ptr();
+ let q = &p as *const _ as *const c_void;
+ unsafe {
+ check("dbus_message_iter_append_basic", ffi::dbus_message_iter_append_basic(i, arg_type as c_int, q));
+ };
+}
+
+unsafe fn arg_get_str<'a>(i: *mut ffi::DBusMessageIter, arg_type: ArgType) -> Option<&'a CStr> {
+ if ffi::dbus_message_iter_get_arg_type(i) != arg_type as c_int { return None };
+ let mut p = ptr::null_mut();
+ ffi::dbus_message_iter_get_basic(i, &mut p as *mut _ as *mut c_void);
+ Some(CStr::from_ptr(p as *const c_char))
+}
+
+
+
+
+// Implementation for basic types.
+
+macro_rules! integer_impl {
+ ($t: ident, $s: ident, $f: expr, $i: ident, $ii: expr, $u: ident, $uu: expr, $fff: ident, $ff: expr) => {
+
+impl Arg for $t {
+ const ARG_TYPE: ArgType = ArgType::$s;
+ #[inline]
+ fn signature() -> Signature<'static> { unsafe { Signature::from_slice_unchecked($f) } }
+}
+
+impl Append for $t {
+ fn append(self, i: &mut IterAppend) { arg_append_basic(&mut i.0, ArgType::$s, self) }
+}
+
+impl<'a> Get<'a> for $t {
+ fn get(i: &mut Iter) -> Option<Self> { arg_get_basic(&mut i.0, ArgType::$s) }
+}
+
+impl RefArg for $t {
+ #[inline]
+ fn arg_type(&self) -> ArgType { ArgType::$s }
+ #[inline]
+ fn signature(&self) -> Signature<'static> { unsafe { Signature::from_slice_unchecked($f) } }
+ #[inline]
+ fn append(&self, i: &mut IterAppend) { arg_append_basic(&mut i.0, ArgType::$s, *self) }
+ #[inline]
+ fn as_any(&self) -> &any::Any { self }
+ #[inline]
+ fn as_any_mut(&mut self) -> &mut any::Any { self }
+ #[inline]
+ fn as_i64(&self) -> Option<i64> { let $i = *self; $ii }
+ #[inline]
+ fn as_u64(&self) -> Option<u64> { let $u = *self; $uu }
+ #[inline]
+ fn as_f64(&self) -> Option<f64> { let $fff = *self; $ff }
+ #[inline]
+ fn box_clone(&self) -> Box<RefArg + 'static> { Box::new(self.clone()) }
+}
+
+impl DictKey for $t {}
+unsafe impl FixedArray for $t {}
+
+}} // End of macro_rules
+
+integer_impl!(u8, Byte, b"y\0", i, Some(i as i64), u, Some(u as u64), f, Some(f as f64));
+integer_impl!(i16, Int16, b"n\0", i, Some(i as i64), _u, None, f, Some(f as f64));
+integer_impl!(u16, UInt16, b"q\0", i, Some(i as i64), u, Some(u as u64), f, Some(f as f64));
+integer_impl!(i32, Int32, b"i\0", i, Some(i as i64), _u, None, f, Some(f as f64));
+integer_impl!(u32, UInt32, b"u\0", i, Some(i as i64), u, Some(u as u64), f, Some(f as f64));
+integer_impl!(i64, Int64, b"x\0", i, Some(i), _u, None, _f, None);
+integer_impl!(u64, UInt64, b"t\0", _i, None, u, Some(u as u64), _f, None);
+
+
+macro_rules! refarg_impl {
+ ($t: ty, $i: ident, $ii: expr, $ss: expr, $uu: expr, $ff: expr) => {
+
+impl RefArg for $t {
+ #[inline]
+ fn arg_type(&self) -> ArgType { <$t as Arg>::ARG_TYPE }
+ #[inline]
+ fn signature(&self) -> Signature<'static> { <$t as Arg>::signature() }
+ #[inline]
+ fn append(&self, i: &mut IterAppend) { <$t as Append>::append(self.clone(), i) }
+ #[inline]
+ fn as_any(&self) -> &any::Any { self }
+ #[inline]
+ fn as_any_mut(&mut self) -> &mut any::Any { self }
+ #[inline]
+ fn as_i64(&self) -> Option<i64> { let $i = self; $ii }
+ #[inline]
+ fn as_u64(&self) -> Option<u64> { let $i = self; $uu }
+ #[inline]
+ fn as_f64(&self) -> Option<f64> { let $i = self; $ff }
+ #[inline]
+ fn as_str(&self) -> Option<&str> { let $i = self; $ss }
+ #[inline]
+ fn box_clone(&self) -> Box<RefArg + 'static> { Box::new(self.clone()) }
+}
+
+ }
+}
+
+
+impl Arg for bool {
+ const ARG_TYPE: ArgType = ArgType::Boolean;
+ fn signature() -> Signature<'static> { unsafe { Signature::from_slice_unchecked(b"b\0") } }
+}
+impl Append for bool {
+ fn append(self, i: &mut IterAppend) { arg_append_basic(&mut i.0, ArgType::Boolean, if self {1} else {0}) }
+}
+impl DictKey for bool {}
+impl<'a> Get<'a> for bool {
+ fn get(i: &mut Iter) -> Option<Self> { arg_get_basic::<u32>(&mut i.0, ArgType::Boolean).map(|q| q != 0) }
+}
+
+refarg_impl!(bool, _i, Some(if *_i { 1 } else { 0 }), None, Some(if *_i { 1 as u64 } else { 0 as u64 }), Some(if *_i { 1 as f64 } else { 0 as f64 }));
+
+impl Arg for f64 {
+ const ARG_TYPE: ArgType = ArgType::Double;
+ fn signature() -> Signature<'static> { unsafe { Signature::from_slice_unchecked(b"d\0") } }
+}
+impl Append for f64 {
+ fn append(self, i: &mut IterAppend) { arg_append_f64(&mut i.0, ArgType::Double, self) }
+}
+impl DictKey for f64 {}
+impl<'a> Get<'a> for f64 {
+ fn get(i: &mut Iter) -> Option<Self> { arg_get_f64(&mut i.0, ArgType::Double) }
+}
+unsafe impl FixedArray for f64 {}
+
+refarg_impl!(f64, _i, None, None, None, Some(*_i));
+
+/// Represents a D-Bus string.
+impl<'a> Arg for &'a str {
+ const ARG_TYPE: ArgType = ArgType::String;
+ fn signature() -> Signature<'static> { unsafe { Signature::from_slice_unchecked(b"s\0") } }
+}
+
+impl<'a> Append for &'a str {
+ fn append(self, i: &mut IterAppend) {
+ use std::borrow::Cow;
+ let b: &[u8] = self.as_bytes();
+ let v: Cow<[u8]> = if b.len() > 0 && b[b.len()-1] == 0 { Cow::Borrowed(b) }
+ else {
+ let mut bb: Vec<u8> = b.into();
+ bb.push(0);
+ Cow::Owned(bb)
+ };
+ let z = unsafe { CStr::from_ptr(v.as_ptr() as *const c_char) };
+ arg_append_str(&mut i.0, ArgType::String, &z)
+ }
+}
+impl<'a> DictKey for &'a str {}
+impl<'a> Get<'a> for &'a str {
+ fn get(i: &mut Iter<'a>) -> Option<&'a str> { unsafe { arg_get_str(&mut i.0, ArgType::String) }
+ .and_then(|s| s.to_str().ok()) }
+}
+
+impl<'a> Arg for String {
+ const ARG_TYPE: ArgType = ArgType::String;
+ fn signature() -> Signature<'static> { unsafe { Signature::from_slice_unchecked(b"s\0") } }
+}
+impl<'a> Append for String {
+ fn append(mut self, i: &mut IterAppend) {
+ self.push_str("\0");
+ let s: &str = &self;
+ s.append(i)
+ }
+}
+impl<'a> DictKey for String {}
+impl<'a> Get<'a> for String {
+ fn get(i: &mut Iter<'a>) -> Option<String> { <&str>::get(i).map(|s| String::from(s)) }
+}
+
+refarg_impl!(String, _i, None, Some(&_i), None, None);
+
+/// Represents a D-Bus string.
+impl<'a> Arg for &'a CStr {
+ const ARG_TYPE: ArgType = ArgType::String;
+ fn signature() -> Signature<'static> { unsafe { Signature::from_slice_unchecked(b"s\0") } }
+}
+
+/*
+/// Note: Will give D-Bus errors in case the CStr is not valid UTF-8.
+impl<'a> Append for &'a CStr {
+ fn append(self, i: &mut IterAppend) {
+ arg_append_str(&mut i.0, Self::arg_type(), &self)
+ }
+}
+*/
+
+impl<'a> DictKey for &'a CStr {}
+impl<'a> Get<'a> for &'a CStr {
+ fn get(i: &mut Iter<'a>) -> Option<&'a CStr> { unsafe { arg_get_str(&mut i.0, Self::ARG_TYPE) }}
+}
+
+impl Arg for OwnedFd {
+ const ARG_TYPE: ArgType = ArgType::UnixFd;
+ fn signature() -> Signature<'static> { unsafe { Signature::from_slice_unchecked(b"h\0") } }
+}
+impl Append for OwnedFd {
+ fn append(self, i: &mut IterAppend) {
+ use std::os::unix::io::AsRawFd;
+ arg_append_basic(&mut i.0, ArgType::UnixFd, self.as_raw_fd())
+ }
+}
+impl DictKey for OwnedFd {}
+impl<'a> Get<'a> for OwnedFd {
+ fn get(i: &mut Iter) -> Option<Self> {
+ arg_get_basic(&mut i.0, ArgType::UnixFd).map(|q| OwnedFd::new(q))
+ }
+}
+
+refarg_impl!(OwnedFd, _i, { use std::os::unix::io::AsRawFd; Some(_i.as_raw_fd() as i64) }, None, None, None);
+
+macro_rules! string_impl {
+ ($t: ident, $s: ident, $f: expr) => {
+
+impl<'a> Arg for $t<'a> {
+ const ARG_TYPE: ArgType = ArgType::$s;
+ fn signature() -> Signature<'static> { unsafe { Signature::from_slice_unchecked($f) } }
+}
+
+impl RefArg for $t<'static> {
+ fn arg_type(&self) -> ArgType { ArgType::$s }
+ fn signature(&self) -> Signature<'static> { unsafe { Signature::from_slice_unchecked($f) } }
+ fn append(&self, i: &mut IterAppend) { arg_append_str(&mut i.0, ArgType::$s, self.as_cstr()) }
+ #[inline]
+ fn as_any(&self) -> &any::Any { self }
+ #[inline]
+ fn as_any_mut(&mut self) -> &mut any::Any { self }
+ #[inline]
+ fn as_str(&self) -> Option<&str> { Some(self) }
+ #[inline]
+ fn box_clone(&self) -> Box<RefArg + 'static> { Box::new(self.clone().into_static()) }
+}
+
+impl<'a> DictKey for $t<'a> {}
+
+impl<'a> Append for $t<'a> {
+ fn append(self, i: &mut IterAppend) {
+ arg_append_str(&mut i.0, ArgType::$s, self.as_cstr())
+ }
+}
+
+/*
+
+Unfortunately, this does not work because it conflicts with getting a $t<'static>.
+
+impl<'a> Get<'a> for $t<'a> {
+ fn get(i: &mut Iter<'a>) -> Option<$t<'a>> { unsafe { arg_get_str(&mut i.0, ArgType::$s) }
+ .map(|s| unsafe { $t::from_slice_unchecked(s.to_bytes_with_nul()) } ) }
+}
+*/
+
+impl<'a> Get<'a> for $t<'static> {
+ fn get(i: &mut Iter<'a>) -> Option<$t<'static>> { unsafe {
+ arg_get_str(&mut i.0, ArgType::$s).map(|s| $t::from_slice_unchecked(s.to_bytes_with_nul()).into_static())
+ }}
+}
+
+
+ }
+}
+
+string_impl!(Path, ObjectPath, b"o\0");
+string_impl!(Signature, Signature, b"g\0");
+
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-07 11:06:27 +0000