ly_common UPDATE make global ctx data static

Author: Roytak

src/ly_common.c

@@ -43,14 +43,16 @@
 #include "version.h"
 #include "xml.h"
 
-/* lock for creating/destroying ctx data */
-pthread_rwlock_t ly_ctx_data_rwlock = PTHREAD_RWLOCK_INITIALIZER;
+/**< lock for creating and destroying both private & shared context data */
+static pthread_rwlock_t ly_ctx_data_rwlock = PTHREAD_RWLOCK_INITIALIZER;
 
-/* sized array of thread-specific context data */
-struct ly_ctx_private_data *ly_private_ctx_data;
+/**< sized array ([sized array](@ref sizedarrays)) of private context data.
+ * The context is identified by the thread ID of the thread that created it and its address. */
+static struct ly_ctx_private_data *ly_private_ctx_data;
 
-/* sized array of shared context data */
-struct ly_ctx_shared_data *ly_shared_ctx_data;
+/**< sized array ([sized array](@ref sizedarrays)) of shared context data.
+ * The context is identified by the memory address of the context. */
+static struct ly_ctx_shared_data *ly_shared_ctx_data;
 
 LIBYANG_API_DEF uint32_t
 ly_version_so_major(void)

src/ly_common.h

@@ -374,13 +374,6 @@ struct ly_ctx_shared_data {
     struct ly_ht *leafref_links_ht;     /**< hash table of leafref links between term data nodes */
 };
 
-extern pthread_rwlock_t ly_ctx_data_rwlock;             /**< lock for creating and destroying both private & shared context data */
-extern struct ly_ctx_private_data *ly_private_ctx_data; /**< sized array ([sized array](@ref sizedarrays)) of private context data.
-                                                          * The context is identified by the thread ID of the thread that created it
-                                                          * and its address. */
-extern struct ly_ctx_shared_data *ly_shared_ctx_data;   /**< sized array ([sized array](@ref sizedarrays)) of shared context data.
-                                                          * The context is identified by the memory address of the context. */
-
 #define LY_CTX_INT_IMMUTABLE 0x80000000 /**< marks a context that was printed into a fixed-size memory block and
                                              can even be shared between processes so it cannot be changed */