Add zmemcpy_pmem implementation

Author: michalbiesek

src/zmalloc.c

@@ -121,6 +121,14 @@ static void *zrealloc_pmem(void *ptr, size_t size) {
     zmalloc_pmem_not_available();
     return NULL;
 }
+
+void *zmemcpy_pmem(void *dst, const void *src, size_t num) {
+    (void)(dst);
+    (void)(src);
+    (void)(num);
+    zmalloc_pmem_not_available();
+    return NULL;
+}
 #endif
 
 #define update_zmalloc_stat_alloc(__n) do { \
@@ -261,6 +269,10 @@ static void *zrealloc_pmem(void *ptr, size_t size) {
     return (char*)newptr+PREFIX_SIZE;
 #endif
 }
+
+void *zmemcpy_pmem(void *dst, const void *src, size_t num) {
+    return pmem_memcpy(dst, src, num, PMEM_F_MEM_NONTEMPORAL|PMEM_F_MEM_NODRAIN);
+}
 #endif
 
 void *zmalloc(size_t size) {

src/zmalloc.h

@@ -108,6 +108,7 @@ size_t zmalloc_get_threshold(void);
 void *zmalloc_dram(size_t size);
 void *zcalloc_dram(size_t size);
 void *zrealloc_dram(void *ptr, size_t size);
+void *zmemcpy_pmem(void *dst, const void *src, size_t num);
 
 #ifdef HAVE_DEFRAG
 void zfree_no_tcache(void *ptr);