Remove usage of proc_pidinfo on iOS

src/unix/apple/app_store/process.rs

@@ -114,4 +114,8 @@ impl ProcessInner {
     pub(crate) fn exists(&self) -> bool {
         false
     }
+
+    pub(crate) fn open_files(&self) -> Option<usize> {
+        None
+    }
 }

src/unix/apple/macos/process.rs

@@ -243,6 +243,25 @@ impl ProcessInner {
     pub(crate) fn exists(&self) -> bool {
         self.exists
     }
+
+    pub(crate) fn open_files(&self) -> Option<usize> {
+        let buffer_size_bytes = unsafe {
+            libc::proc_pidinfo(
+                self.pid.0,
+                libc::PROC_PIDLISTFDS,
+                0,
+                std::ptr::null_mut(),
+                0,
+            )
+        };
+
+        if buffer_size_bytes < 0 {
+            sysinfo_debug!("proc_pidinfo failed");
+            None
+        } else {
+            Some(buffer_size_bytes as usize / std::mem::size_of::<libc::proc_fdinfo>())
+        }
+    }
 }
 
 #[allow(deprecated)] // Because of libc::mach_absolute_time.

src/unix/apple/process.rs

@@ -77,25 +77,6 @@ impl From<i32> for ThreadStatus {
 }
 
 impl ProcessInner {
-    pub(crate) fn open_files(&self) -> Option<usize> {
-        let buffer_size_bytes = unsafe {
-            libc::proc_pidinfo(
-                self.pid().0,
-                libc::PROC_PIDLISTFDS,
-                0,
-                std::ptr::null_mut(),
-                0,
-            )
-        };
-
-        if buffer_size_bytes < 0 {
-            sysinfo_debug!("proc_pidinfo failed");
-            None
-        } else {
-            Some(buffer_size_bytes as usize / std::mem::size_of::<libc::proc_fdinfo>())
-        }
-    }
-
     // FIXME: Should query the value, because it can be changed with setrlimit and other means.
     // For now, cannot find where to get this information sadly...
     pub(crate) fn open_files_limit(&self) -> Option<usize> {