From 341ef5e8b2aa7db3eeadbcea2991d3d73ac9106e Mon Sep 17 00:00:00 2001
From: zhanghu <zhanghu@espressif.com>
Date: Wed, 16 Oct 2019 16:30:42 +0800
Subject: [PATCH] add heap_caps_get_size_free

---
 components/heap/heap_caps.c             |  7 +++++++
 components/heap/include/esp_heap_caps.h | 13 +++++++++++++
 2 files changed, 20 insertions(+)

diff --git a/components/heap/heap_caps.c b/components/heap/heap_caps.c
index 9c7d91a2e..12b8513b9 100644
--- a/components/heap/heap_caps.c
+++ b/components/heap/heap_caps.c
@@ -450,3 +450,10 @@ void heap_caps_dump_all(void)
 {
     heap_caps_dump(MALLOC_CAP_INVALID);
 }
+
+size_t heap_caps_get_allocated_size( void *ptr )
+{
+    heap_t *heap = find_containing_heap(ptr);
+    size_t size = multi_heap_get_allocated_size(heap->heap, ptr);
+    return size;
+}
diff --git a/components/heap/include/esp_heap_caps.h b/components/heap/include/esp_heap_caps.h
index 3b7252288..b4620bb44 100644
--- a/components/heap/include/esp_heap_caps.h
+++ b/components/heap/include/esp_heap_caps.h
@@ -310,6 +310,19 @@ void heap_caps_dump(uint32_t caps);
  */
 void heap_caps_dump_all(void);
 
+/**
+ * @brief Return the size that a particular pointer was allocated with.
+ *
+ * @param ptr Pointer to currently allocated heap memory. Must be a pointer value previously 
+ * returned by heap_caps_malloc,malloc,calloc, etc. and not yet freed.
+ *
+ * @note The app will crash with an assertion failure if the pointer is not valid.
+ * 
+ * @return Size of the memory allocated at this block.
+ * 
+ */
+size_t heap_caps_get_allocated_size( void *ptr );
+
 #ifdef __cplusplus
 }
 #endif