Redis manifesto added

[redis.git] / src / ziplist.c

diff --git a/src/ziplist.c b/src/ziplist.c
index a9923d65917d6b8d972fbbfb6f1e40dfa9704108..524f72388521efe07349afe90ef6cd1e51e9e1bc 100644 (file)
--- a/src/ziplist.c
+++ b/src/ziplist.c
@@ -119,6 +119,7 @@ static unsigned int zipEntryEncoding(unsigned char *p) {
         return p[0] & 0xf0;
     }
     assert(NULL);
+    return 0;
 }
 
 /* Return bytes needed to store integer encoded by 'encoding' */
@@ -129,13 +130,14 @@ static unsigned int zipIntSize(unsigned char encoding) {
     case ZIP_INT_64B: return sizeof(int64_t);
     }
     assert(NULL);
+    return 0;
 }
 
 /* Decode the encoded length pointed by 'p'. If a pointer to 'lensize' is
  * provided, it is set to the number of bytes required to encode the length. */
 static unsigned int zipDecodeLength(unsigned char *p, unsigned int *lensize) {
     unsigned char encoding = zipEntryEncoding(p);
-    unsigned int len;
+    unsigned int len = 0;
 
     if (ZIP_IS_STR(encoding)) {
         switch(encoding) {
@@ -300,7 +302,7 @@ static void zipSaveInteger(unsigned char *p, int64_t value, unsigned char encodi
 static int64_t zipLoadInteger(unsigned char *p, unsigned char encoding) {
     int16_t i16;
     int32_t i32;
-    int64_t i64, ret;
+    int64_t i64, ret = 0;
     if (encoding == ZIP_INT_16B) {
         memcpy(&i16,p,sizeof(i16));
         ret = i16;
@@ -595,7 +597,12 @@ unsigned char *ziplistIndex(unsigned char *zl, int index) {
     return (p[0] == ZIP_END || index > 0) ? NULL : p;
 }
 
-/* Return pointer to next entry in ziplist. */
+/* Return pointer to next entry in ziplist.
+ *
+ * zl is the pointer to the ziplist
+ * p is the pointer to the current element
+ *
+ * The element after 'p' is returned, otherwise NULL if we are at the end. */
 unsigned char *ziplistNext(unsigned char *zl, unsigned char *p) {
     ((void) zl);
 
@@ -723,8 +730,8 @@ unsigned int ziplistLen(unsigned char *zl) {
     return len;
 }
 
-/* Return size in bytes of ziplist. */
-unsigned int ziplistSize(unsigned char *zl) {
+/* Return ziplist blob size in bytes. */
+size_t ziplistBlobLen(unsigned char *zl) {
     return ZIPLIST_BYTES(zl);
 }