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+/**
+ ****************************************************************************************
+ *
+ * @file ke_env.h
+ *
+ * @brief This file contains the definition of the kernel.
+ *
+ * Copyright (C) RivieraWaves 2009-2015
+ *
+ *
+ ****************************************************************************************
+ */
+
+#ifndef _KE_ENV_H_
+#define _KE_ENV_H_
+
+/**
+ ****************************************************************************************
+ * @addtogroup ENV Environment
+ * @ingroup KERNEL
+ * @brief Kernel Environment
+ *
+ * @{
+ ****************************************************************************************
+ */
+
+/*
+ * INCLUDE FILES
+ ****************************************************************************************
+ */
+#include "rwip_config.h"          // stack configuration
+#include "ke_event.h"             // kernel event
+#include "co_list.h"              // kernel queue definition
+
+// forward declaration
+struct mblock_free;
+
+/// Kernel environment definition
+struct ke_env_tag
+{
+    /// Queue of sent messages but not yet delivered to receiver
+    struct co_list queue_sent;
+    /// Queue of messages delivered but not consumed by receiver
+    struct co_list queue_saved;
+    /// Queue of timers
+    struct co_list queue_timer;
+    /// Root pointer = pointer to first element of heap linked lists
+    struct mblock_free * heap[KE_MEM_BLOCK_MAX];
+    /// Size of heaps
+    uint16_t heap_size[KE_MEM_BLOCK_MAX];
+
+    #if (KE_PROFILING)
+    /// Size of heap used
+    uint16_t heap_used[KE_MEM_BLOCK_MAX];
+    /// Maximum heap memory used
+    uint32_t max_heap_used;
+    #endif //KE_PROFILING
+};
+
+/// Kernel environment
+extern struct ke_env_tag ke_env;
+
+/// @} ENV
+
+#endif // _KE_ENV_H_