summaryrefslogtreecommitdiffstats
path: root/vendor/miow/src/handle.rs
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:18:32 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:18:32 +0000
commit4547b622d8d29df964fa2914213088b148c498fc (patch)
tree9fc6b25f3c3add6b745be9a2400a6e96140046e9 /vendor/miow/src/handle.rs
parentReleasing progress-linux version 1.66.0+dfsg1-1~progress7.99u1. (diff)
downloadrustc-4547b622d8d29df964fa2914213088b148c498fc.tar.xz
rustc-4547b622d8d29df964fa2914213088b148c498fc.zip
Merging upstream version 1.67.1+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'vendor/miow/src/handle.rs')
-rw-r--r--vendor/miow/src/handle.rs347
1 files changed, 174 insertions, 173 deletions
diff --git a/vendor/miow/src/handle.rs b/vendor/miow/src/handle.rs
index f50c49d50..5302246ea 100644
--- a/vendor/miow/src/handle.rs
+++ b/vendor/miow/src/handle.rs
@@ -1,173 +1,174 @@
-use crate::*;
-use std::cmp;
-use std::io;
-use std::ptr;
-
-use windows_sys::Win32::Storage::FileSystem::*;
-use windows_sys::Win32::System::IO::*;
-
-#[derive(Debug)]
-pub struct Handle(HANDLE);
-
-unsafe impl Send for Handle {}
-unsafe impl Sync for Handle {}
-
-impl Handle {
- pub fn new(handle: HANDLE) -> Handle {
- Handle(handle)
- }
-
- pub fn raw(&self) -> HANDLE {
- self.0
- }
-
- pub fn into_raw(self) -> HANDLE {
- use std::mem;
-
- let ret = self.0;
- mem::forget(self);
- ret
- }
-
- pub fn write(&self, buf: &[u8]) -> io::Result<usize> {
- let mut bytes = 0;
- let len = cmp::min(buf.len(), <u32>::max_value() as usize) as u32;
- crate::cvt(unsafe {
- WriteFile(
- self.0,
- buf.as_ptr() as *const _,
- len,
- &mut bytes,
- 0 as *mut _,
- )
- })?;
- Ok(bytes as usize)
- }
-
- pub fn read(&self, buf: &mut [u8]) -> io::Result<usize> {
- let mut bytes = 0;
- let len = cmp::min(buf.len(), <u32>::max_value() as usize) as u32;
- crate::cvt(unsafe {
- ReadFile(
- self.0,
- buf.as_mut_ptr() as *mut _,
- len,
- &mut bytes,
- 0 as *mut _,
- )
- })?;
- Ok(bytes as usize)
- }
-
- pub unsafe fn read_overlapped(
- &self,
- buf: &mut [u8],
- overlapped: *mut OVERLAPPED,
- ) -> io::Result<Option<usize>> {
- self.read_overlapped_helper(buf, overlapped, FALSE)
- }
-
- pub unsafe fn read_overlapped_wait(
- &self,
- buf: &mut [u8],
- overlapped: *mut OVERLAPPED,
- ) -> io::Result<usize> {
- match self.read_overlapped_helper(buf, overlapped, TRUE) {
- Ok(Some(bytes)) => Ok(bytes),
- Ok(None) => panic!("logic error"),
- Err(e) => Err(e),
- }
- }
-
- pub unsafe fn read_overlapped_helper(
- &self,
- buf: &mut [u8],
- overlapped: *mut OVERLAPPED,
- wait: BOOL,
- ) -> io::Result<Option<usize>> {
- let len = cmp::min(buf.len(), <u32>::max_value() as usize) as u32;
- let res = crate::cvt({
- ReadFile(
- self.0,
- buf.as_mut_ptr() as *mut _,
- len,
- ptr::null_mut(),
- overlapped,
- )
- });
- match res {
- Ok(_) => (),
- Err(ref e) if e.raw_os_error() == Some(ERROR_IO_PENDING as i32) => (),
- Err(e) => return Err(e),
- }
-
- let mut bytes = 0;
- let res = crate::cvt(GetOverlappedResult(self.0, overlapped, &mut bytes, wait));
- match res {
- Ok(_) => Ok(Some(bytes as usize)),
- Err(ref e) if e.raw_os_error() == Some(ERROR_IO_INCOMPLETE as i32) && wait == FALSE => {
- Ok(None)
- }
- Err(e) => Err(e),
- }
- }
-
- pub unsafe fn write_overlapped(
- &self,
- buf: &[u8],
- overlapped: *mut OVERLAPPED,
- ) -> io::Result<Option<usize>> {
- self.write_overlapped_helper(buf, overlapped, FALSE)
- }
-
- pub unsafe fn write_overlapped_wait(
- &self,
- buf: &[u8],
- overlapped: *mut OVERLAPPED,
- ) -> io::Result<usize> {
- match self.write_overlapped_helper(buf, overlapped, TRUE) {
- Ok(Some(bytes)) => Ok(bytes),
- Ok(None) => panic!("logic error"),
- Err(e) => Err(e),
- }
- }
-
- unsafe fn write_overlapped_helper(
- &self,
- buf: &[u8],
- overlapped: *mut OVERLAPPED,
- wait: BOOL,
- ) -> io::Result<Option<usize>> {
- let len = cmp::min(buf.len(), <u32>::max_value() as usize) as u32;
- let res = crate::cvt({
- WriteFile(
- self.0,
- buf.as_ptr() as *const _,
- len,
- ptr::null_mut(),
- overlapped,
- )
- });
- match res {
- Ok(_) => (),
- Err(ref e) if e.raw_os_error() == Some(ERROR_IO_PENDING as i32) => (),
- Err(e) => return Err(e),
- }
-
- let mut bytes = 0;
- let res = crate::cvt(GetOverlappedResult(self.0, overlapped, &mut bytes, wait));
- match res {
- Ok(_) => Ok(Some(bytes as usize)),
- Err(ref e) if e.raw_os_error() == Some(ERROR_IO_INCOMPLETE as i32) && wait == FALSE => {
- Ok(None)
- }
- Err(e) => Err(e),
- }
- }
-}
-
-impl Drop for Handle {
- fn drop(&mut self) {
- unsafe { CloseHandle(self.0) };
- }
-}
+use crate::{BOOL, FALSE, TRUE};
+use std::cmp;
+use std::io;
+use std::ptr;
+
+use windows_sys::Win32::Foundation::{CloseHandle, ERROR_IO_INCOMPLETE, ERROR_IO_PENDING, HANDLE};
+use windows_sys::Win32::Storage::FileSystem::{ReadFile, WriteFile};
+use windows_sys::Win32::System::IO::{GetOverlappedResult, OVERLAPPED};
+
+#[derive(Debug)]
+pub struct Handle(HANDLE);
+
+unsafe impl Send for Handle {}
+unsafe impl Sync for Handle {}
+
+impl Handle {
+ pub fn new(handle: HANDLE) -> Handle {
+ Handle(handle)
+ }
+
+ pub fn raw(&self) -> HANDLE {
+ self.0
+ }
+
+ pub fn into_raw(self) -> HANDLE {
+ use std::mem;
+
+ let ret = self.0;
+ mem::forget(self);
+ ret
+ }
+
+ pub fn write(&self, buf: &[u8]) -> io::Result<usize> {
+ let mut bytes = 0;
+ let len = cmp::min(buf.len(), <u32>::max_value() as usize) as u32;
+ crate::cvt(unsafe {
+ WriteFile(
+ self.0,
+ buf.as_ptr() as *const _,
+ len,
+ &mut bytes,
+ 0 as *mut _,
+ )
+ })?;
+ Ok(bytes as usize)
+ }
+
+ pub fn read(&self, buf: &mut [u8]) -> io::Result<usize> {
+ let mut bytes = 0;
+ let len = cmp::min(buf.len(), <u32>::max_value() as usize) as u32;
+ crate::cvt(unsafe {
+ ReadFile(
+ self.0,
+ buf.as_mut_ptr() as *mut _,
+ len,
+ &mut bytes,
+ 0 as *mut _,
+ )
+ })?;
+ Ok(bytes as usize)
+ }
+
+ pub unsafe fn read_overlapped(
+ &self,
+ buf: &mut [u8],
+ overlapped: *mut OVERLAPPED,
+ ) -> io::Result<Option<usize>> {
+ self.read_overlapped_helper(buf, overlapped, FALSE)
+ }
+
+ pub unsafe fn read_overlapped_wait(
+ &self,
+ buf: &mut [u8],
+ overlapped: *mut OVERLAPPED,
+ ) -> io::Result<usize> {
+ match self.read_overlapped_helper(buf, overlapped, TRUE) {
+ Ok(Some(bytes)) => Ok(bytes),
+ Ok(None) => panic!("logic error"),
+ Err(e) => Err(e),
+ }
+ }
+
+ pub unsafe fn read_overlapped_helper(
+ &self,
+ buf: &mut [u8],
+ overlapped: *mut OVERLAPPED,
+ wait: BOOL,
+ ) -> io::Result<Option<usize>> {
+ let len = cmp::min(buf.len(), <u32>::max_value() as usize) as u32;
+ let res = crate::cvt({
+ ReadFile(
+ self.0,
+ buf.as_mut_ptr() as *mut _,
+ len,
+ ptr::null_mut(),
+ overlapped,
+ )
+ });
+ match res {
+ Ok(_) => (),
+ Err(ref e) if e.raw_os_error() == Some(ERROR_IO_PENDING as i32) => (),
+ Err(e) => return Err(e),
+ }
+
+ let mut bytes = 0;
+ let res = crate::cvt(GetOverlappedResult(self.0, overlapped, &mut bytes, wait));
+ match res {
+ Ok(_) => Ok(Some(bytes as usize)),
+ Err(ref e) if e.raw_os_error() == Some(ERROR_IO_INCOMPLETE as i32) && wait == FALSE => {
+ Ok(None)
+ }
+ Err(e) => Err(e),
+ }
+ }
+
+ pub unsafe fn write_overlapped(
+ &self,
+ buf: &[u8],
+ overlapped: *mut OVERLAPPED,
+ ) -> io::Result<Option<usize>> {
+ self.write_overlapped_helper(buf, overlapped, FALSE)
+ }
+
+ pub unsafe fn write_overlapped_wait(
+ &self,
+ buf: &[u8],
+ overlapped: *mut OVERLAPPED,
+ ) -> io::Result<usize> {
+ match self.write_overlapped_helper(buf, overlapped, TRUE) {
+ Ok(Some(bytes)) => Ok(bytes),
+ Ok(None) => panic!("logic error"),
+ Err(e) => Err(e),
+ }
+ }
+
+ unsafe fn write_overlapped_helper(
+ &self,
+ buf: &[u8],
+ overlapped: *mut OVERLAPPED,
+ wait: BOOL,
+ ) -> io::Result<Option<usize>> {
+ let len = cmp::min(buf.len(), <u32>::max_value() as usize) as u32;
+ let res = crate::cvt({
+ WriteFile(
+ self.0,
+ buf.as_ptr() as *const _,
+ len,
+ ptr::null_mut(),
+ overlapped,
+ )
+ });
+ match res {
+ Ok(_) => (),
+ Err(ref e) if e.raw_os_error() == Some(ERROR_IO_PENDING as i32) => (),
+ Err(e) => return Err(e),
+ }
+
+ let mut bytes = 0;
+ let res = crate::cvt(GetOverlappedResult(self.0, overlapped, &mut bytes, wait));
+ match res {
+ Ok(_) => Ok(Some(bytes as usize)),
+ Err(ref e) if e.raw_os_error() == Some(ERROR_IO_INCOMPLETE as i32) && wait == FALSE => {
+ Ok(None)
+ }
+ Err(e) => Err(e),
+ }
+ }
+}
+
+impl Drop for Handle {
+ fn drop(&mut self) {
+ unsafe { CloseHandle(self.0) };
+ }
+}