[Libguestfs] [PATCH 2/9] Rust bindings: Add create / close functions
From: Hiroyuki_Katsura <hiroyuki.katsura.0513(a)gmail.com>
---
generator/rust.ml | 84 ++++++++++++++++++++++++++++++++++++++++++++++-
rust/Cargo.toml | 2 ++
2 files changed, 85 insertions(+), 1 deletion(-)
diff --git a/generator/rust.ml b/generator/rust.ml
index 83afdfe73..dbe9db010 100644
--- a/generator/rust.ml
+++ b/generator/rust.ml
@@ -31,4 +31,86 @@ open Events
let generate_rust () =
- generate_header CStyle LGPLv2plus;
\ No newline at end of file
+ generate_header CStyle LGPLv2plus;
+
+ pr "
+#[allow(non_camel_case_types)]
+enum guestfs_h {}
+
+extern \"C\" {
+ fn guestfs_create() -> *mut guestfs_h;
+ fn guestfs_create_flags(flags: i64) -> *mut guestfs_h;
+ fn guestfs_close(g: *mut guestfs_h);
+ static GUESTFS_CREATE_NO_ENVIRONMENT: i64;
+ static GUESTFS_CREATE_NO_CLOSE_ON_EXIT: i64;
+}
+
+pub struct Handle {
+ g: *mut guestfs_h,
+}
+
+impl Drop for Handle {
+ fn drop(&mut self) {
+ unsafe { guestfs_close(self.g) }
+ }
+}
+
+pub struct CreateFlags {
+ create_no_environment_flag: bool,
+ create_no_close_on_exit_flag: bool,
+}
+
+impl CreateFlags {
+ pub fn new() -> CreateFlags {
+ CreateFlags {
+ create_no_environment_flag: false,
+ create_no_close_on_exit_flag: false,
+ }
+ }
+
+ pub fn create_no_environment(mut self, flag: bool) -> CreateFlags {
+ self.create_no_environment_flag = flag;
+ self
+ }
+
+ pub fn create_no_close_on_exit_flag(mut self, flag: bool) -> CreateFlags {
+ self.create_no_close_on_exit_flag = flag;
+ self
+ }
+
+ unsafe fn to_libc_int(self) -> i64 {
+ let mut flag = 0;
+ flag |= if self.create_no_environment_flag {
+ GUESTFS_CREATE_NO_ENVIRONMENT
+ } else {
+ 0
+ };
+ flag |= if self.create_no_close_on_exit_flag {
+ GUESTFS_CREATE_NO_CLOSE_ON_EXIT
+ } else {
+ 0
+ };
+ flag
+ }
+}
+
+impl Handle {
+ pub fn create() -> Result<Handle, &'static str> {
+ let g = unsafe { guestfs_create() };
+ if g.is_null() {
+ Err(\"failed to create guestfs handle\")
+ } else {
+ Ok(Handle { g })
+ }
+ }
+
+ pub fn create_flags(flags: CreateFlags) -> Result<Handle, &'static
str> {
+ let g = unsafe { guestfs_create_flags(flags.to_libc_int()) };
+ if g.is_null() {
+ Err(\"failed to create guestfs handle\")
+ } else {
+ Ok(Handle { g })
+ }
+ }
+}
+ "
diff --git a/rust/Cargo.toml b/rust/Cargo.toml
index e730ee830..6cd94ce6a 100644
--- a/rust/Cargo.toml
+++ b/rust/Cargo.toml
@@ -4,3 +4,5 @@ version = "0.1.0"
edition = "2018"
[dependencies]
+libc = "0.2"
+
--
2.20.1 (Apple Git-117)