audiounit: extract auto_array_wrapper to cubeb_utils

And handle the locking logic separately.

1 files changed, 48 insertions, 0 deletions

diff --git a/src/cubeb_utils.h b/src/cubeb_utils.h
index a7f4c8c..e923d37 100644
--- a/src/cubeb_utils.h
+++ b/src/cubeb_utils.h
@@ -259,6 +259,54 @@ private:
   size_t length_;
 };
 
+struct auto_array_wrapper {
+  virtual void push(void * elements, size_t length) = 0;
+  virtual size_t length() = 0;
+  virtual void push_silence(size_t length) = 0;
+  virtual bool pop(size_t length) = 0;
+  virtual void * data() = 0;
+  virtual void clear() = 0;
+  virtual ~auto_array_wrapper() {}
+};
+
+template <typename T>
+struct auto_array_wrapper_impl : public auto_array_wrapper {
+  explicit auto_array_wrapper_impl(uint32_t size)
+    : ar(size)
+  {}
+
+  void push(void * elements, size_t length) override {
+    ar.push(static_cast<T *>(elements), length);
+  }
+
+  size_t length() override {
+    return ar.length();
+  }
+
+  void push_silence(size_t length) override {
+    ar.push_silence(length);
+  }
+
+  bool pop(size_t length) override {
+    return ar.pop(nullptr, length);
+  }
+
+  void * data() override {
+    return ar.data();
+  }
+
+  void clear() override {
+    ar.clear();
+  }
+
+  ~auto_array_wrapper_impl() {
+    ar.clear();
+  }
+
+private:
+  auto_array<T> ar;
+};
+
 using auto_lock = std::lock_guard<owned_critical_section>;
 
 #endif /* CUBEB_UTILS */