From:  <brian@localhost.localdomain>
Date: Fri, 18 Jul 2008 12:23:02 +0000 (-0700)
Subject: Removed dead code.
X-Git-Tag: _23~25
X-Git-Url: https://git.m6w6.name/?a=commitdiff_plain;h=073c4085895027aabe10aec9264dd8f4dae7e264;p=m6w6%2Flibmemcached

Removed dead code.
---

diff --git a/libmemcached/memcached.c b/libmemcached/memcached.c
index f6d71d59..2efcc7d5 100644
--- a/libmemcached/memcached.c
+++ b/libmemcached/memcached.c
@@ -49,14 +49,6 @@ void memcached_free(memcached_st *ptr)
       free(ptr->continuum);
   }
 
-  if (ptr->wheel)
-  {
-    if (ptr->call_free)
-      ptr->call_free(ptr, ptr->wheel);
-    else
-      free(ptr->wheel);
-  }
-
   if (ptr->is_allocated == MEMCACHED_ALLOCATED)
   {
     if (ptr->call_free)
diff --git a/libmemcached/memcached.h b/libmemcached/memcached.h
index 60c63b58..d1daf775 100644
--- a/libmemcached/memcached.h
+++ b/libmemcached/memcached.h
@@ -82,8 +82,6 @@ struct memcached_st {
   memcached_hash hash;
   memcached_server_distribution distribution;
   void *user_data;
-  unsigned int *wheel;
-  uint32_t wheel_count;
   uint32_t continuum_count;
   memcached_continuum_item_st *continuum;
   memcached_clone_func on_clone;
@@ -95,10 +93,6 @@ struct memcached_st {
   memcached_trigger_delete_key delete_trigger;
   char prefix_key[MEMCACHED_PREFIX_KEY_MAX_SIZE];
   size_t prefix_key_length;
-#ifdef NOT_USED /* Future Use */
-  uint8_t replicas;
-  memcached_return warning;
-#endif
 };
 
 
diff --git a/libmemcached/memcached_constants.h b/libmemcached/memcached_constants.h
index f698cff6..fd2f2b4d 100644
--- a/libmemcached/memcached_constants.h
+++ b/libmemcached/memcached_constants.h
@@ -66,7 +66,6 @@ typedef enum {
 typedef enum {
   MEMCACHED_DISTRIBUTION_MODULA,
   MEMCACHED_DISTRIBUTION_CONSISTENT,
-  MEMCACHED_DISTRIBUTION_CONSISTENT_WHEEL,
   MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA,
 } memcached_server_distribution;
 
diff --git a/libmemcached/memcached_hash.c b/libmemcached/memcached_hash.c
index cca7b5a4..5bb0fcee 100644
--- a/libmemcached/memcached_hash.c
+++ b/libmemcached/memcached_hash.c
@@ -138,14 +138,6 @@ unsigned int dispatch_host(memcached_st *ptr, uint32_t hash)
       }
     } 
     break;
-  case MEMCACHED_DISTRIBUTION_CONSISTENT_WHEEL:
-    {
-      unsigned int server_key;
-
-      server_key= hash % MEMCACHED_STRIDE * ptr->wheel_count;
-
-      return ptr->wheel[server_key];
-    }
   case MEMCACHED_DISTRIBUTION_MODULA:
     return hash % ptr->number_of_hosts;
   default:
diff --git a/libmemcached/memcached_hosts.c b/libmemcached/memcached_hosts.c
index 2678a7c1..d75da5d2 100644
--- a/libmemcached/memcached_hosts.c
+++ b/libmemcached/memcached_hosts.c
@@ -6,49 +6,6 @@ static memcached_return server_add(memcached_st *ptr, char *hostname,
                                    memcached_connection type);
 memcached_return update_continuum(memcached_st *ptr);
 
-#define MEMCACHED_WHEEL_SIZE 1024
-#define MEMCACHED_STRIDE 4
-static memcached_return rebalance_wheel(memcached_st *ptr)
-{
-  unsigned int x;
-  unsigned int y;
-  unsigned int latch;
-
-  if (ptr->number_of_hosts > ptr->wheel_count)
-  {
-    uint32_t *new_ptr;
-
-    if (ptr->call_realloc)
-      new_ptr= (uint32_t *)ptr->call_realloc(ptr, ptr->wheel, sizeof(uint32_t) * (ptr->number_of_hosts + MEMCACHED_CONTINUUM_ADDITION) * MEMCACHED_STRIDE);
-    else
-      new_ptr= (uint32_t *)realloc(ptr->wheel, sizeof(uint32_t) * (ptr->number_of_hosts + MEMCACHED_CONTINUUM_ADDITION) * MEMCACHED_STRIDE);
-
-    if (new_ptr == 0)
-      return MEMCACHED_MEMORY_ALLOCATION_FAILURE;
-
-    ptr->wheel= new_ptr;
-    ptr->wheel_count= ptr->number_of_hosts + MEMCACHED_CONTINUUM_ADDITION;
-  }
-
-  /* Seed the Wheel */
-  memset(ptr->wheel, 0, sizeof(uint32_t) * MEMCACHED_STRIDE * ptr->wheel_count);
-
-  for (latch= y= x= 0; x < MEMCACHED_STRIDE * ptr->wheel_count; x++, latch++)
-  {
-    if (latch == MEMCACHED_STRIDE)
-    {
-      y++;
-      if (y == ptr->number_of_hosts)
-        y= 0;
-      latch= 0;
-    }
-
-    ptr->wheel[x]= y;
-  }
-
-  return MEMCACHED_SUCCESS;
-}
-
 static int compare_servers(const void *p1, const void *p2)
 {
   int return_value;
@@ -82,9 +39,6 @@ memcached_return run_distribution(memcached_st *ptr)
   case MEMCACHED_DISTRIBUTION_CONSISTENT:
   case MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA:
     return update_continuum(ptr);
-  case MEMCACHED_DISTRIBUTION_CONSISTENT_WHEEL:
-    return rebalance_wheel(ptr);
-    break;
   case MEMCACHED_DISTRIBUTION_MODULA:
     if (ptr->flags & MEM_USE_SORT_HOSTS)
       sort_hosts(ptr);
diff --git a/tests/function.c b/tests/function.c
index 253f21bd..59e1f2b9 100644
--- a/tests/function.c
+++ b/tests/function.c
@@ -2639,23 +2639,6 @@ memcached_return set_memory_alloc(memcached_st *memc)
   return MEMCACHED_SUCCESS;
 }
 
-memcached_return enable_wheel(memcached_st *memc)
-{
-  memcached_server_distribution value= MEMCACHED_DISTRIBUTION_CONSISTENT_WHEEL;
-  memcached_hash hash;
-  memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_DISTRIBUTION, value);
-  pre_hsieh(memc);
-
-  value= (memcached_server_distribution)memcached_behavior_get(memc, MEMCACHED_BEHAVIOR_DISTRIBUTION);
-  assert(value == MEMCACHED_DISTRIBUTION_CONSISTENT_WHEEL);
-
-  hash= (memcached_hash)memcached_behavior_get(memc, MEMCACHED_BEHAVIOR_HASH);
-  assert(hash == MEMCACHED_HASH_HSIEH);
-
-
-  return MEMCACHED_SUCCESS;
-}
-
 memcached_return enable_consistent(memcached_st *memc)
 {
   memcached_server_distribution value= MEMCACHED_DISTRIBUTION_CONSISTENT;
@@ -2896,7 +2879,6 @@ collection_st collection[] ={
   {"poll_timeout", poll_timeout, 0, tests},
   {"gets", enable_cas, 0, tests},
   {"consistent", enable_consistent, 0, tests},
-  {"wheel", enable_wheel, 0, tests},
   {"memory_allocators", set_memory_alloc, 0, tests},
   {"prefix", set_prefix, 0, tests},
 //  {"udp", pre_udp, 0, tests},
@@ -2914,7 +2896,6 @@ collection_st collection[] ={
   {"generate_nonblock", pre_nonblock, 0, generate_tests},
   {"consistent_not", 0, 0, consistent_tests},
   {"consistent_ketama", pre_behavior_ketama, 0, consistent_tests},
-  {"consistent_wheel", enable_wheel, 0, consistent_tests},
   {0, 0, 0, 0}
 };