feat: add statfs support for cygwin

Author: Berrysoft

src/sys/mod.rs

@@ -137,7 +137,7 @@ feature! {
     pub mod stat;
 }
 
-#[cfg(any(linux_android, freebsdlike, apple_targets, target_os = "openbsd"))]
+#[cfg(any(linux_android, freebsdlike, apple_targets, target_os = "openbsd", target_os = "cygwin"))]
 feature! {
     #![feature = "fs"]
     pub mod statfs;

src/sys/statfs.rs

@@ -1,7 +1,7 @@
 //! Get filesystem statistics, non-portably
 //!
 //! See [`statvfs`](crate::sys::statvfs) for a portable alternative.
-#[cfg(not(linux_android))]
+#[cfg(not(any(linux_android, target_os = "cygwin")))]
 use std::ffi::CStr;
 use std::fmt::{self, Debug};
 use std::mem;
@@ -19,8 +19,11 @@ use crate::{errno::Errno, NixPath, Result};
 #[cfg(target_os = "android")]
 pub type fsid_t = libc::__fsid_t;
 /// Identifies a mounted file system
-#[cfg(not(target_os = "android"))]
+#[cfg(not(any(target_os = "android", target_os = "cygwin")))]
 pub type fsid_t = libc::fsid_t;
+/// Identifies a mounted file system
+#[cfg(target_os = "cygwin")]
+pub type fsid_t = libc::c_long;
 
 cfg_if! {
     if #[cfg(any(linux_android, target_os = "fuchsia"))] {
@@ -71,6 +74,8 @@ type fs_type_t = libc::c_int;
     ))
 ))]
 type fs_type_t = libc::__fsword_t;
+#[cfg(target_os = "cygwin")]
+type fs_type_t = libc::c_long;
 
 /// Describes the file system type as known by the operating system.
 #[cfg(any(
@@ -83,6 +88,7 @@ type fs_type_t = libc::__fsword_t;
         target_os = "linux",
         not(any(target_arch = "s390x", target_env = "musl"))
     ),
+    target_os = "cygwin",
 ))]
 #[derive(Eq, Copy, Clone, PartialEq, Debug)]
 pub struct FsType(pub fs_type_t);
@@ -301,7 +307,7 @@ impl Statfs {
     }
 
     /// Magic code defining system type
-    #[cfg(not(linux_android))]
+    #[cfg(not(any(linux_android, target_os = "cygwin")))]
     pub fn filesystem_type_name(&self) -> &str {
         let c_str = unsafe { CStr::from_ptr(self.0.f_fstypename.as_ptr()) };
         c_str.to_str().unwrap()
@@ -437,7 +443,7 @@ impl Statfs {
     }
 
     /// Size of a block
-    #[cfg(target_os = "dragonfly")]
+    #[cfg(any(target_os = "dragonfly", target_os = "cygwin"))]
     pub fn block_size(&self) -> libc::c_long {
         self.0.f_bsize
     }
@@ -518,7 +524,7 @@ impl Statfs {
     }
 
     /// Total data blocks in filesystem
-    #[cfg(target_os = "dragonfly")]
+    #[cfg(any(target_os = "dragonfly", target_os = "cygwin"))]
     pub fn blocks(&self) -> libc::c_long {
         self.0.f_blocks
     }
@@ -542,7 +548,7 @@ impl Statfs {
     }
 
     /// Free blocks in filesystem
-    #[cfg(target_os = "dragonfly")]
+    #[cfg(any(target_os = "dragonfly", target_os = "cygwin"))]
     pub fn blocks_free(&self) -> libc::c_long {
         self.0.f_bfree
     }
@@ -560,7 +566,7 @@ impl Statfs {
     }
 
     /// Free blocks available to unprivileged user
-    #[cfg(target_os = "dragonfly")]
+    #[cfg(any(target_os = "dragonfly", target_os = "cygwin"))]
     pub fn blocks_available(&self) -> libc::c_long {
         self.0.f_bavail
     }
@@ -590,7 +596,7 @@ impl Statfs {
     }
 
     /// Total file nodes in filesystem
-    #[cfg(target_os = "dragonfly")]
+    #[cfg(any(target_os = "dragonfly", target_os = "cygwin"))]
     pub fn files(&self) -> libc::c_long {
         self.0.f_files
     }
@@ -613,7 +619,7 @@ impl Statfs {
     }
 
     /// Free file nodes in filesystem
-    #[cfg(target_os = "dragonfly")]
+    #[cfg(any(target_os = "dragonfly", target_os = "cygwin"))]
     pub fn files_free(&self) -> libc::c_long {
         self.0.f_ffree
     }
@@ -639,6 +645,7 @@ impl Statfs {
 impl Debug for Statfs {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         let mut ds = f.debug_struct("Statfs");
+        #[cfg(not(target_os = "cygwin"))]
         ds.field("optimal_transfer_size", &self.optimal_transfer_size());
         ds.field("block_size", &self.block_size());
         ds.field("blocks", &self.blocks());