Bump bindgen

Bump bindgen to support newer clang versions.
See rust-lang/rust-bindgen#2312

Also adapt the types referring to a size to usize,
otherwise the new bindgen will no longer accept it.

Signed-off-by: Florian Kauer <florian.kauer@linutronix.de>

Cargo.toml

@@ -15,7 +15,7 @@ repository = "https://github.com/sjtakada/sysrepo-rs"
 version = "0.4.0"
 
 [build-dependencies]
-bindgen = "0.59.2"
+bindgen = "0.69.4"
 
 [dependencies]
 libc = "0.2.121"

src/lib.rs

@@ -289,14 +289,14 @@ pub struct SrValueSlice {
     values: *mut sr_val_t,
 
     /// Length of this slice.
-    len: u64,
+    len: usize,
 
     /// Owned flag.
     owned: bool,
 }
 
 impl SrValueSlice {
-    pub fn new(capacity: u64, owned: bool) -> Self {
+    pub fn new(capacity: usize, owned: bool) -> Self {
         Self {
             values: unsafe {
                 libc::malloc(mem::size_of::<sr_val_t>() * capacity as usize) as *mut sr_val_t
@@ -306,7 +306,7 @@ impl SrValueSlice {
         }
     }
 
-    pub fn from(values: *mut sr_val_t, len: u64, owned: bool) -> Self {
+    pub fn from(values: *mut sr_val_t, len: usize, owned: bool) -> Self {
         Self {
             values: values,
             len: len,
@@ -328,7 +328,7 @@ impl SrValueSlice {
         self.values
     }
 
-    pub fn len(&self) -> u64 {
+    pub fn len(&self) -> usize {
         self.len
     }
 
@@ -569,7 +569,7 @@ impl SrSession {
     ) -> Result<SrValueSlice, i32> {
         let xpath = str_to_cstring(xpath)?;
         let timeout_ms = timeout.map_or(0, |timeout| timeout.as_millis() as u32);
-        let mut values_count: u64 = 0;
+        let mut values_count: usize = 0;
         let mut values: *mut sr_val_t = unsafe { zeroed::<*mut sr_val_t>() };
 
         let rc = unsafe {
@@ -678,7 +678,7 @@ impl SrSession {
         notif_type: sr_ev_notif_type_t,
         path: *const c_char,
         values: *const sr_val_t,
-        values_cnt: size_t,
+        values_cnt: usize,
         timestamp: *mut timespec,
         private_data: *mut c_void,
     ) where
@@ -749,11 +749,11 @@ impl SrSession {
         sub_id: u32,
         op_path: *const c_char,
         input: *const sr_val_t,
-        input_cnt: size_t,
+        input_cnt: usize,
         event: sr_event_t,
         request_id: u32,
         output: *mut *mut sr_val_t,
-        output_cnt: *mut u64,
+        output_cnt: *mut usize,
         private_data: *mut c_void,
     ) -> i32
     where
@@ -960,13 +960,13 @@ impl SrSession {
     ) -> Result<SrValueSlice, i32> {
         let path = str_to_cstring(path)?;
         let (input, input_cnt) = match input {
-            Some(mut input) => (input.as_mut_ptr(), input.len() as u64),
+            Some(mut input) => (input.as_mut_ptr(), input.len() as usize),
             None => (std::ptr::null_mut(), 0),
         };
         let timeout = timeout.map_or(0, |timeout| timeout.as_millis() as u32);
 
         let mut output: *mut sr_val_t = unsafe { zeroed::<*mut sr_val_t>() };
-        let mut output_count: u64 = 0;
+        let mut output_count: usize = 0;
 
         let rc = unsafe {
             sr_rpc_send(