7287767a3f
* Add partial impl of determine_type_rights fn * Add draft of fd_fdstat_get hostcall * Add writev wrapper for writing IoVec in RawHandle * Move IoVec and writev to separate helper crate * Add Win error handling Clean up closing and duplicating RawHandle * Wrap Win file type result * Add draft impl of fd_close and fd_read * Refactor getting file access rights * Remove winapi from the main Cargo.toml * Add very rough draft of open_path (very incomplete) * Clean up WinError with macro * Ignore dir handle in openat if path absolute * Decode oflags and advance open_path hostcall * Clean up AccessRight and FlagsAndAttributes flags * Implement path_get (without symlink expansion yet!) * Add ShareMode and fix path_get for nested paths * Add some error mappings between Win and WASI * Clean up fdflags conversions * Fix sharing violation when calling openat at '.' * Apply Alex's fix of using ManuallyDrop instead forget * Clean up * Explicitly specify workspace to avoid comp errors at tests
38 lines
1.1 KiB
Rust
38 lines
1.1 KiB
Rust
#![allow(non_camel_case_types)]
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use crate::{winerror, Result};
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use std::os::windows::prelude::RawHandle;
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use winapi::shared::minwindef::FALSE;
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pub fn dup(old_handle: RawHandle) -> Result<RawHandle> {
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use winapi::um::handleapi::DuplicateHandle;
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use winapi::um::processthreadsapi::GetCurrentProcess;
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use winapi::um::winnt::DUPLICATE_SAME_ACCESS;
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unsafe {
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let mut new_handle = 0 as RawHandle;
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let cur_proc = GetCurrentProcess();
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if DuplicateHandle(
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cur_proc,
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old_handle,
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cur_proc,
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&mut new_handle,
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0, // dwDesiredAccess; this flag is ignored if DUPLICATE_SAME_ACCESS is specified
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FALSE,
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DUPLICATE_SAME_ACCESS,
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) == FALSE
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{
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Err(winerror::WinError::last())
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} else {
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Ok(new_handle)
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}
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}
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}
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pub fn close(handle: RawHandle) -> Result<()> {
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use winapi::um::handleapi::CloseHandle;
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if unsafe { CloseHandle(handle) } == FALSE {
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Err(winerror::WinError::last())
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} else {
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Ok(())
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}
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}
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