Rename BpfPerfBuffer to PerfEventArray, add struct_parser to BpfObject as a shared_ptr

src/maps/perf_event_array.h

@@ -0,0 +1,37 @@
+#ifndef PYLIBBPF_BPF_PERF_BUFFER_H
+#define PYLIBBPF_BPF_PERF_BUFFER_H
+
+#include <libbpf.h>
+#include <pybind11/functional.h>
+#include <pybind11/pybind11.h>
+#include <string>
+
+class StructParser;
+
+namespace py = pybind11;
+
+class PerfEventArray {
+private:
+  struct perf_buffer *pb_;
+  py::function callback_;
+  py::function lost_callback_;
+
+  std::shared_ptr<StructParser> parser_;
+  std::string struct_name_;
+
+  // Static callback wrappers for C API
+  static void sample_callback_wrapper(void *ctx, int cpu, void *data,
+                                      unsigned int size);
+  static void lost_callback_wrapper(void *ctx, int cpu, unsigned long long cnt);
+
+public:
+  PerfEventArray(int map_fd, int page_cnt, py::function callback,
+                py::object lost_callback = py::none());
+  ~PerfEventArray();
+
+  int poll(int timeout_ms);
+  int consume();
+  [[nodiscard]] int fd() const;
+};
+
+#endif // PYLIBBPF_BPF_PERF_BUFFER_H