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-rw-r--r--include/asterisk/stringfields.h12
1 files changed, 7 insertions, 5 deletions
diff --git a/include/asterisk/stringfields.h b/include/asterisk/stringfields.h
index 51a169604..4039bf482 100644
--- a/include/asterisk/stringfields.h
+++ b/include/asterisk/stringfields.h
@@ -114,6 +114,10 @@
*/
typedef const char * ast_string_field;
+/* the type of storage used to track how many bytes were allocated for a field */
+
+typedef uint16_t ast_string_field_allocation;
+
/*!
\internal
\brief A constant empty string used for fields that have no other value
@@ -123,13 +127,15 @@ extern const char *__ast_string_field_empty;
/*!
\internal
\brief Structure used to hold a pool of space for string fields
+ \note base is aligned so base+used can stay aligned by incrementing used with
+ aligned numbers only
*/
struct ast_string_field_pool {
struct ast_string_field_pool *prev; /*!< pointer to the previous pool, if any */
size_t size; /*!< the total size of the pool */
size_t used; /*!< the space used in the pool */
size_t active; /*!< the amount of space actively in use by fields */
- char base[0]; /*!< storage space for the fields */
+ char base[0] __attribute__((aligned(sizeof(ast_string_field_allocation)))); /*!< storage space for the fields */
};
/*!
@@ -293,10 +299,6 @@ void * attribute_malloc __ast_calloc_with_stringfields(unsigned int num_structs,
void __ast_string_field_release_active(struct ast_string_field_pool *pool_head,
const ast_string_field ptr);
-/* the type of storage used to track how many bytes were allocated for a field */
-
-typedef uint16_t ast_string_field_allocation;
-
/*!
\brief Macro to provide access to the allocation field that lives immediately in front of a string field
\param x Pointer to the string field