Merge PR #2415 'Use jemalloc instead of libc allocator'

1 files changed, 17 insertions, 15 deletions

diff --git a/src/nvim/memory.c b/src/nvim/memory.c
index 2223b65a93..2d4259a238 100644
--- a/src/nvim/memory.c
+++ b/src/nvim/memory.c
@@ -18,6 +18,14 @@
 # include "memory.c.generated.h"
 #endif
 
+#if defined(USE_JEMALLOC) && !defined(UNIT_TESTING)
+#include "jemalloc/jemalloc.h"
+#define malloc(size) je_malloc(size)
+#define calloc(count, size) je_calloc(count, size)
+#define realloc(ptr, size) je_realloc(ptr, size)
+#define free(ptr) je_free(ptr)
+#endif
+
 /// Try to free memory. Used when trying to recover from out of memory errors.
 /// @see {xmalloc}
 static void try_to_free_memory(void)
@@ -92,6 +100,12 @@ void *xmalloc(size_t size)
   return ret;
 }
 
+/// free wrapper that returns delegates to the backing memory manager
+void xfree(void *ptr)
+{
+  free(ptr);
+}
+
 /// calloc() wrapper
 ///
 /// @see {xmalloc}
@@ -362,19 +376,7 @@ size_t xstrlcpy(char *restrict dst, const char *restrict src, size_t size)
 char *xstrdup(const char *str)
   FUNC_ATTR_MALLOC FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_RET
 {
-  char *ret = strdup(str);
-
-  if (!ret) {
-    try_to_free_memory();
-    ret = strdup(str);
-    if (!ret) {
-      mch_errmsg(e_outofmem);
-      mch_errmsg("\n");
-      preserve_exit();
-    }
-  }
-
-  return ret;
+  return xmemdupz(str, strlen(str));
 }
 
 /// A version of memchr that starts the search at `src + len`.
@@ -541,8 +543,8 @@ void free_all_mem(void)
   clear_sb_text();            /* free any scrollback text */
 
   /* Free some global vars. */
-  free(last_cmdline);
-  free(new_last_cmdline);
+  xfree(last_cmdline);
+  xfree(new_last_cmdline);
   set_keep_msg(NULL, 0);
 
   /* Clear cmdline history. */