prevent (more) commands from Lua scripts

[redis.git] / src / rio.h

diff --git a/src/rio.h b/src/rio.h
index fe863cb52f6a9bf660d27e879c1464b6a4c79bde..2a830eb575aacb751f5b24e29f4a5d1cafaddf09 100644 (file)
--- a/src/rio.h
+++ b/src/rio.h
@@ -5,8 +5,9 @@
 #include "sds.h"
 
 struct _rio {
-    /* Backend functions. Both read and write should return 0 for short reads
-     * or writes, identical to the return values of fread/fwrite. */
+    /* Backend functions.
+     * Since this functions do not tolerate short writes or reads the return
+     * value is simplified to: zero on error, non zero on complete success. */
     size_t (*read)(struct _rio *, void *buf, size_t len);
     size_t (*write)(struct _rio *, const void *buf, size_t len);
     off_t (*tell)(struct _rio *);
@@ -28,8 +29,8 @@ typedef struct _rio rio;
 #define rioWrite(rio,buf,len) ((rio)->write((rio),(buf),(len)))
 #define rioRead(rio,buf,len) ((rio)->read((rio),(buf),(len)))
 
-rio rioInitWithFile(FILE *fp);
-rio rioInitWithBuffer(sds s);
+void rioInitWithFile(rio *r, FILE *fp);
+void rioInitWithBuffer(rio *r, sds s);
 
 size_t rioWriteBulkCount(rio *r, char prefix, int count);
 size_t rioWriteBulkString(rio *r, const char *buf, size_t len);