Implement consistent hashing algorithm for RedisArray

1 files changed, 11 insertions, 0 deletions

diff --git a/common.h b/common.h
index adbe3035..122c9627 100644
--- a/common.h
+++ b/common.h
@@ -644,6 +644,17 @@ typedef enum _PUBSUB_TYPE {
 #define REDIS_ENABLE_MODE(redis_sock, m) (redis_sock->mode |= m)
 #define REDIS_DISABLE_MODE(redis_sock, m) (redis_sock->mode &= ~m)
 
+/* HOST_NAME_MAX doesn't exist everywhere */
+#ifndef HOST_NAME_MAX
+    #if defined(_POSIX_HOST_NAME_MAX)
+        #define HOST_NAME_MAX _POSIX_HOST_NAME_MAX
+    #elif defined(MAXHOSTNAMELEN)
+        #define HOST_NAME_MAX MAXHOSTNAMELEN
+    #else
+        #define HOST_NAME_MAX 255
+    #endif
+#endif
+
 typedef struct fold_item {
     zval * (*fun)(INTERNAL_FUNCTION_PARAMETERS, void *, ...);
     void *ctx;