X-Git-Url: https://git.m6w6.name/?a=blobdiff_plain;f=libmemcached%2Fhosts.c;h=c6c9eb8e4a037366c247c1421cd77b96e7fc7cb8;hb=a4456cc10079f2e6f648befc91657f2723c825e5;hp=e0224222176626e0d63dee54c765ca1df236cb83;hpb=98c99981e0ebe7f716bea2e4d95434d159103fcd;p=awesomized%2Flibmemcached

diff --git a/libmemcached/hosts.c b/libmemcached/hosts.c
index e0224222..c6c9eb8e 100644
--- a/libmemcached/hosts.c
+++ b/libmemcached/hosts.c
@@ -11,8 +11,8 @@ static memcached_return_t update_continuum(memcached_st *ptr);
 static int compare_servers(const void *p1, const void *p2)
 {
   int return_value;
-  memcached_server_st *a= (memcached_server_st *)p1;
-  memcached_server_st *b= (memcached_server_st *)p2;
+  memcached_server_instance_st *a= (memcached_server_instance_st *)p1;
+  memcached_server_instance_st *b= (memcached_server_instance_st *)p2;
 
   return_value= strcmp(a->hostname, b->hostname);
 
@@ -26,10 +26,13 @@ static int compare_servers(const void *p1, const void *p2)
 
 static void sort_hosts(memcached_st *ptr)
 {
-  if (ptr->number_of_hosts)
+  if (memcached_server_count(ptr))
   {
-    qsort(ptr->hosts, ptr->number_of_hosts, sizeof(memcached_server_st), compare_servers);
-    ptr->hosts[0].count= (uint16_t) ptr->number_of_hosts;
+    memcached_server_instance_st *instance;
+
+    qsort(memcached_server_list(ptr), memcached_server_count(ptr), sizeof(memcached_server_instance_st), compare_servers);
+    instance= memcached_server_instance_fetch(ptr, 0);
+    instance->number_of_hosts= memcached_server_count(ptr);
   }
 }
 
@@ -60,26 +63,6 @@ memcached_return_t run_distribution(memcached_st *ptr)
   return MEMCACHED_SUCCESS;
 }
 
-void server_list_free(memcached_st *ptr, memcached_server_st *servers)
-{
-  unsigned int x;
-
-  if (servers == NULL)
-    return;
-
-  for (x= 0; x < servers->count; x++)
-    if (servers[x].address_info)
-    {
-      freeaddrinfo(servers[x].address_info);
-      servers[x].address_info= NULL;
-    }
-
-  if (ptr)
-    ptr->call_free(ptr, servers);
-  else
-    free(servers);
-}
-
 static uint32_t ketama_server_hash(const char *key, unsigned int key_length, int alignment)
 {
   unsigned char results[16];
@@ -111,7 +94,7 @@ static memcached_return_t update_continuum(memcached_st *ptr)
   uint32_t host_index;
   uint32_t continuum_index= 0;
   uint32_t value;
-  memcached_server_st *list;
+  memcached_server_instance_st *list;
   uint32_t pointer_index;
   uint32_t pointer_counter= 0;
   uint32_t pointer_per_server= MEMCACHED_POINTS_PER_SERVER;
@@ -129,7 +112,7 @@ static memcached_return_t update_continuum(memcached_st *ptr)
     return MEMCACHED_ERRNO;
   }
 
-  list = ptr->hosts;
+  list = memcached_server_list(ptr);
 
   /* count live servers (those without a retry delay set) */
   is_auto_ejecting= memcached_behavior_get(ptr, MEMCACHED_BEHAVIOR_AUTO_EJECT_HOSTS);
@@ -137,7 +120,7 @@ static memcached_return_t update_continuum(memcached_st *ptr)
   {
     live_servers= 0;
     ptr->next_distribution_rebuild= 0;
-    for (host_index= 0; host_index < ptr->number_of_hosts; ++host_index)
+    for (host_index= 0; host_index < memcached_server_count(ptr); ++host_index)
     {
       if (list[host_index].next_retry <= now.tv_sec)
         live_servers++;
@@ -149,7 +132,9 @@ static memcached_return_t update_continuum(memcached_st *ptr)
     }
   }
   else
-    live_servers= ptr->number_of_hosts;
+  {
+    live_servers= memcached_server_count(ptr);
+  }
 
   is_ketama_weighted= memcached_behavior_get(ptr, MEMCACHED_BEHAVIOR_KETAMA_WEIGHTED);
   points_per_server= (uint32_t) (is_ketama_weighted ? MEMCACHED_POINTS_PER_SERVER_KETAMA : MEMCACHED_POINTS_PER_SERVER);
@@ -161,8 +146,8 @@ static memcached_return_t update_continuum(memcached_st *ptr)
   {
     memcached_continuum_item_st *new_ptr;
 
-    new_ptr= ptr->call_realloc(ptr, ptr->continuum,
-                               sizeof(memcached_continuum_item_st) * (live_servers + MEMCACHED_CONTINUUM_ADDITION) * points_per_server);
+    new_ptr= libmemcached_realloc(ptr, ptr->continuum,
+                                  sizeof(memcached_continuum_item_st) * (live_servers + MEMCACHED_CONTINUUM_ADDITION) * points_per_server);
 
     if (new_ptr == 0)
       return MEMCACHED_MEMORY_ALLOCATION_FAILURE;
@@ -173,7 +158,7 @@ static memcached_return_t update_continuum(memcached_st *ptr)
 
   if (is_ketama_weighted)
   {
-    for (host_index = 0; host_index < ptr->number_of_hosts; ++host_index)
+    for (host_index = 0; host_index < memcached_server_count(ptr); ++host_index)
     {
       if (list[host_index].weight == 0)
       {
@@ -184,7 +169,7 @@ static memcached_return_t update_continuum(memcached_st *ptr)
     }
   }
 
-  for (host_index = 0; host_index < ptr->number_of_hosts; ++host_index)
+  for (host_index = 0; host_index < memcached_server_count(ptr); ++host_index)
   {
     if (is_auto_ejecting && list[host_index].next_retry > now.tv_sec)
       continue;
@@ -295,12 +280,12 @@ static memcached_return_t update_continuum(memcached_st *ptr)
 
   WATCHPOINT_ASSERT(ptr);
   WATCHPOINT_ASSERT(ptr->continuum);
-  WATCHPOINT_ASSERT(ptr->number_of_hosts * MEMCACHED_POINTS_PER_SERVER <= MEMCACHED_CONTINUUM_SIZE);
+  WATCHPOINT_ASSERT(memcached_server_count(ptr) * MEMCACHED_POINTS_PER_SERVER <= MEMCACHED_CONTINUUM_SIZE);
   ptr->continuum_points_counter= pointer_counter;
   qsort(ptr->continuum, ptr->continuum_points_counter, sizeof(memcached_continuum_item_st), continuum_item_cmp);
 
 #ifdef DEBUG
-  for (pointer_index= 0; ptr->number_of_hosts && pointer_index < ((live_servers * MEMCACHED_POINTS_PER_SERVER) - 1); pointer_index++)
+  for (pointer_index= 0; memcached_server_count(ptr) && pointer_index < ((live_servers * MEMCACHED_POINTS_PER_SERVER) - 1); pointer_index++)
   {
     WATCHPOINT_ASSERT(ptr->continuum[pointer_index].value <= ptr->continuum[pointer_index + 1].value);
   }
@@ -312,37 +297,46 @@ static memcached_return_t update_continuum(memcached_st *ptr)
 
 memcached_return_t memcached_server_push(memcached_st *ptr, memcached_server_st *list)
 {
-  unsigned int x;
-  uint16_t count;
+  uint32_t count;
   memcached_server_st *new_host_list;
 
-  if (!list)
+  if (! list)
     return MEMCACHED_SUCCESS;
 
-  count= list[0].count;
-  new_host_list= ptr->call_realloc(ptr, ptr->hosts,
-                                   sizeof(memcached_server_st) * (count + ptr->number_of_hosts));
+  count= memcached_servers_count(list);
+  new_host_list= libmemcached_realloc(ptr, memcached_server_list(ptr),
+                                      sizeof(memcached_server_instance_st) * (count + memcached_server_count(ptr)));
 
-  if (!new_host_list)
+  if (! new_host_list)
     return MEMCACHED_MEMORY_ALLOCATION_FAILURE;
 
-  ptr->hosts= new_host_list;
+  memcached_server_list_set(ptr, new_host_list);
 
-  for (x= 0; x < count; x++)
+  for (uint32_t x= 0; x < count; x++)
   {
+    memcached_server_instance_st *instance;
+
     if ((ptr->flags.use_udp && list[x].type != MEMCACHED_CONNECTION_UDP)
             || ((list[x].type == MEMCACHED_CONNECTION_UDP)
             && ! (ptr->flags.use_udp)) )
       return MEMCACHED_INVALID_HOST_PROTOCOL;
 
     WATCHPOINT_ASSERT(list[x].hostname[0] != 0);
-    memcached_server_create(ptr, &ptr->hosts[ptr->number_of_hosts]);
+
+    instance= memcached_server_instance_fetch(ptr, memcached_server_count(ptr));
+
     /* TODO check return type */
-    (void)memcached_server_create_with(ptr, &ptr->hosts[ptr->number_of_hosts], list[x].hostname,
+    (void)memcached_server_create_with(ptr, instance, list[x].hostname,
                                        list[x].port, list[x].weight, list[x].type);
     ptr->number_of_hosts++;
   }
-  ptr->hosts[0].count= (uint16_t) ptr->number_of_hosts;
+
+  // Provides backwards compatibility with server list.
+  {
+    memcached_server_instance_st *instance;
+    instance= memcached_server_instance_fetch(ptr, 0);
+    instance->number_of_hosts= memcached_server_count(ptr);
+  }
 
   return run_distribution(ptr);
 }
@@ -357,7 +351,7 @@ memcached_return_t memcached_server_add_unix_socket_with_weight(memcached_st *pt
                                                                 const char *filename,
                                                                 uint32_t weight)
 {
-  if (!filename)
+  if (! filename)
     return MEMCACHED_FAILURE;
 
   return server_add(ptr, filename, 0, weight, MEMCACHED_CONNECTION_UNIX_SOCKET);
@@ -375,10 +369,10 @@ memcached_return_t memcached_server_add_udp_with_weight(memcached_st *ptr,
                                                         in_port_t port,
                                                         uint32_t weight)
 {
-  if (!port)
+  if (! port)
     port= MEMCACHED_DEFAULT_PORT;
 
-  if (!hostname)
+  if (! hostname)
     hostname= "localhost";
 
   return server_add(ptr, hostname, port, weight, MEMCACHED_CONNECTION_UDP);
@@ -396,10 +390,10 @@ memcached_return_t memcached_server_add_with_weight(memcached_st *ptr,
                                                     in_port_t port,
                                                     uint32_t weight)
 {
-  if (!port)
+  if (! port)
     port= MEMCACHED_DEFAULT_PORT;
 
-  if (!hostname)
+  if (! hostname)
     hostname= "localhost";
 
   return server_add(ptr, hostname, port, weight, MEMCACHED_CONNECTION_TCP);
@@ -410,35 +404,47 @@ static memcached_return_t server_add(memcached_st *ptr, const char *hostname,
                                      uint32_t weight,
                                      memcached_connection_t type)
 {
-  memcached_server_st *new_host_list;
+  memcached_server_instance_st *new_host_list;
+  memcached_server_instance_st *instance;
 
   if ( (ptr->flags.use_udp && type != MEMCACHED_CONNECTION_UDP)
       || ( (type == MEMCACHED_CONNECTION_UDP) && (! ptr->flags.use_udp) ) )
     return MEMCACHED_INVALID_HOST_PROTOCOL;
 
-  new_host_list= ptr->call_realloc(ptr, ptr->hosts,
-                                   sizeof(memcached_server_st) * (ptr->number_of_hosts+1));
+  new_host_list= libmemcached_realloc(ptr, memcached_server_list(ptr),
+                                      sizeof(memcached_server_instance_st) * (ptr->number_of_hosts + 1));
 
   if (new_host_list == NULL)
     return MEMCACHED_MEMORY_ALLOCATION_FAILURE;
 
-  ptr->hosts= new_host_list;
+  memcached_server_list_set(ptr, new_host_list);
 
   /* TODO: Check return type */
-  (void)memcached_server_create_with(ptr, &ptr->hosts[ptr->number_of_hosts], hostname, port, weight, type);
+  instance= memcached_server_instance_fetch(ptr, memcached_server_count(ptr));
+  (void)memcached_server_create_with(ptr, instance, hostname, port, weight, type);
   ptr->number_of_hosts++;
-  ptr->hosts[0].count= (uint16_t) ptr->number_of_hosts;
+
+  instance= memcached_server_instance_fetch(ptr, 0);
+  memcached_servers_set_count(instance, memcached_server_count(ptr));
 
   return run_distribution(ptr);
 }
 
+/**
+  @todo allow lists to query themselves even if they lack a root
+*/
 memcached_return_t memcached_server_remove(memcached_server_st *st_ptr)
 {
   uint32_t x, host_index;
-  memcached_st *ptr= st_ptr->root;
-  memcached_server_st *list= ptr->hosts;
+  memcached_st *root= (memcached_st *)st_ptr->root;
+  memcached_server_st *list;
 
-  for (x= 0, host_index= 0; x < ptr->number_of_hosts; x++)
+  if (root == NULL)
+    return MEMCACHED_FAILURE;
+
+  list= memcached_server_list(root);
+
+  for (x= 0, host_index= 0; x < memcached_server_count(root); x++)
   {
     if (strncmp(list[x].hostname, st_ptr->hostname, MEMCACHED_MAX_HOST_LENGTH) != 0 || list[x].port != st_ptr->port)
     {
@@ -447,14 +453,14 @@ memcached_return_t memcached_server_remove(memcached_server_st *st_ptr)
       host_index++;
     }
   }
-  ptr->number_of_hosts= host_index;
+  root->number_of_hosts= host_index;
 
   if (st_ptr->address_info)
   {
     freeaddrinfo(st_ptr->address_info);
     st_ptr->address_info= NULL;
   }
-  run_distribution(ptr);
+  run_distribution(root);
 
   return MEMCACHED_SUCCESS;
 }
@@ -472,22 +478,22 @@ memcached_server_st *memcached_server_list_append_with_weight(memcached_server_s
                                                               memcached_return_t *error)
 {
   unsigned int count;
-  memcached_server_st *new_host_list;
+  memcached_server_instance_st *new_host_list;
 
   if (hostname == NULL || error == NULL)
     return NULL;
 
-  if (!port)
+  if (! port)
     port= MEMCACHED_DEFAULT_PORT;
 
   /* Increment count for hosts */
   count= 1;
   if (ptr != NULL)
   {
-    count+= ptr[0].count;
+    count+= memcached_servers_count(ptr);
   }
 
-  new_host_list= (memcached_server_st *)realloc(ptr, sizeof(memcached_server_st) * count);
+  new_host_list= (memcached_server_instance_st *)realloc(ptr, sizeof(memcached_server_instance_st) * count);
   if (!new_host_list)
   {
     *error= MEMCACHED_MEMORY_ALLOCATION_FAILURE;
@@ -498,21 +504,8 @@ memcached_server_st *memcached_server_list_append_with_weight(memcached_server_s
   memcached_server_create_with(NULL, &new_host_list[count-1], hostname, port, weight, MEMCACHED_CONNECTION_TCP);
 
   /* Backwards compatibility hack */
-  new_host_list[0].count= (uint16_t) count;
+  memcached_servers_set_count(new_host_list, count);
 
   *error= MEMCACHED_SUCCESS;
   return new_host_list;
 }
-
-unsigned int memcached_server_list_count(memcached_server_st *ptr)
-{
-  if (ptr == NULL)
-    return 0;
-
-  return ptr[0].count;
-}
-
-void memcached_server_list_free(memcached_server_st *ptr)
-{
-  server_list_free(NULL, ptr);
-}