Create a test for 1308. Addresses #1308.

git-svn-id: file:///svn/toku/tokudb.1032b@8277 c7de825b-a66e-492c-adef-691d508d4ae1

newbrt/brt-serialize.c

@@ -23,7 +23,10 @@ static inline u_int64_t alignup (u_int64_t a, u_int64_t b) {
     return ((a+b-1)/b)*b;
 }
 
-static void maybe_preallocate_in_file (int fd, u_int64_t size) {
+void
+maybe_preallocate_in_file (int fd, u_int64_t size)
+// Effect: If file size is less than SIZE, make it bigger by either doubling it or growing by 16MB whichever is less.
+{
     int64_t file_size;
     {
         int r = toku_os_get_file_size(fd, &file_size);

newbrt/brt.h

@@ -117,4 +117,8 @@ void toku_brt_init(void);
 void toku_brt_destroy(void);
 void toku_pwrite_lock_init(void);
 void toku_pwrite_lock_destroy(void);
+
+void maybe_preallocate_in_file (int fd, u_int64_t size);
+// Effect: If file size is less than SIZE, make it bigger by either doubling it or growing by 16MB whichever is less.
+
 #endif