cef/include/capi/cef_shared_memory_region_capi.h

// Copyright (c) 2024 Marshall A. Greenblatt. All rights reserved.
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#ifndef CEF_INCLUDE_CAPI_CEF_SHARED_MEMORY_REGION_CAPI_H_
#define CEF_INCLUDE_CAPI_CEF_SHARED_MEMORY_REGION_CAPI_H_
#pragma once

#include "include/capi/cef_base_capi.h"

#ifdef __cplusplus
extern "C" {
#endif

///
/// Structure that wraps platform-dependent share memory region mapping.
///
typedef struct _cef_shared_memory_region_t {
  ///
  /// Base structure.
  ///
  cef_base_ref_counted_t base;

  ///
  /// Returns true (1) if the mapping is valid.
  ///
  int(CEF_CALLBACK* is_valid)(struct _cef_shared_memory_region_t* self);

  ///
  /// Returns the size of the mapping in bytes. Returns 0 for invalid instances.
  ///
  size_t(CEF_CALLBACK* size)(struct _cef_shared_memory_region_t* self);

  ///
  /// Returns the pointer to the memory. Returns nullptr for invalid instances.
  /// The returned pointer is only valid for the life span of this object.
  ///
  void*(CEF_CALLBACK* memory)(struct _cef_shared_memory_region_t* self);
} cef_shared_memory_region_t;

#ifdef __cplusplus
}
#endif

#endif  // CEF_INCLUDE_CAPI_CEF_SHARED_MEMORY_REGION_CAPI_H_