X-Git-Url: https://git.m6w6.name/?a=blobdiff_plain;f=libmemcached%2Fmemcached.c;h=a1f4b379ff5cf79804e97df87b3e53acd99d2d89;hb=16c2fe9cc04a3f15fe56d3be2f3be19a1d731fb2;hp=33a80bab29693982e49ae0210b3fc08f18694095;hpb=26c1a71921b1468d56f6edaa7e6e3855ec1c879f;p=m6w6%2Flibmemcached

diff --git a/libmemcached/memcached.c b/libmemcached/memcached.c
index 33a80bab..a1f4b379 100644
--- a/libmemcached/memcached.c
+++ b/libmemcached/memcached.c
@@ -1,83 +1,301 @@
-/*
-  Memcached library
-*/
+/* LibMemcached
+ * Copyright (C) 2006-2010 Brian Aker
+ * All rights reserved.
+ *
+ * Use and distribution licensed under the BSD license.  See
+ * the COPYING file in the parent directory for full text.
+ *
+ * Summary:
+ *
+ */
+
 #include "common.h"
 
-memcached_st *memcached_create(memcached_st *ptr)
+static const memcached_st global_copy= {
+  .state= {
+    .is_purging= false,
+    .is_processing_input= false,
+    .is_time_for_rebuild= false,
+  },
+  .flags= {
+    .auto_eject_hosts= false,
+    .binary_protocol= false,
+    .buffer_requests= false,
+    .cork= false,
+    .hash_with_prefix_key= false,
+    .ketama_weighted= false,
+    .no_block= false,
+    .no_reply= false,
+    .randomize_replica_read= false,
+    .reuse_memory= false,
+    .support_cas= false,
+    .tcp_nodelay= false,
+    .use_cache_lookups= false,
+    .use_sort_hosts= false,
+    .use_udp= false,
+    .verify_key= false,
+    .tcp_keepalive= false,
+    .load_from_file= false,
+    .ping_service= false
+  }
+};
+
+static inline bool _memcached_init(memcached_st *self)
 {
-  memcached_result_st *result_ptr;
+  self->state= global_copy.state;
+  self->flags= global_copy.flags;
+
+  self->distribution= MEMCACHED_DISTRIBUTION_MODULA;
+
+  hashkit_st *hash_ptr;
+  hash_ptr= hashkit_create(&self->hashkit);
+  if (! hash_ptr)
+    return false;
+
+  self->continuum_points_counter= 0;
+
+  self->number_of_hosts= 0;
+  self->servers= NULL;
+  self->last_disconnected_server= NULL;
+
+  self->snd_timeout= 0;
+  self->rcv_timeout= 0;
+  self->server_failure_limit= 0;
+
+  /* TODO, Document why we picked these defaults */
+  self->io_msg_watermark= 500;
+  self->io_bytes_watermark= 65 * 1024;
+
+  self->tcp_keepidle= 0;
+
+  self->io_key_prefetch= 0;
+  self->cached_errno= 0;
+  self->poll_timeout= MEMCACHED_DEFAULT_TIMEOUT;
+  self->connect_timeout= MEMCACHED_DEFAULT_CONNECT_TIMEOUT;
+  self->retry_timeout= 0;
+  self->continuum_count= 0;
+
+  self->send_size= -1;
+  self->recv_size= -1;
+
+  self->user_data= NULL;
+  self->next_distribution_rebuild= 0;
+  self->number_of_replicas= 0;
+  hash_ptr= hashkit_create(&self->distribution_hashkit);
+  if (! hash_ptr)
+    return false;
+  self->continuum= NULL;
+
+  self->allocators= memcached_allocators_return_default();
+
+  self->on_clone= NULL;
+  self->on_cleanup= NULL;
+  self->get_key_failure= NULL;
+  self->delete_trigger= NULL;
+  self->callbacks= NULL;
+  self->sasl.callbacks= NULL;
+  self->sasl.is_allocated= false;
+
+  self->error_messages= NULL;
+  self->prefix_key= NULL;
+
+  return true;
+}
+
+static void _free(memcached_st *ptr, bool release_st)
+{
+  /* If we have anything open, lets close it now */
+  memcached_quit(ptr);
+  memcached_server_list_free(memcached_server_list(ptr));
+  memcached_result_free(&ptr->result);
+
+  if (ptr->last_disconnected_server)
+    memcached_server_free(ptr->last_disconnected_server);
+
+  if (ptr->on_cleanup)
+    ptr->on_cleanup(ptr);
+
+  if (ptr->continuum)
+    libmemcached_free(ptr, ptr->continuum);
 
+  memcached_array_free(ptr->prefix_key);
+  ptr->prefix_key= NULL;
+
+  memcached_error_free(ptr);
+
+  if (ptr->sasl.callbacks)
+  {
+#ifdef LIBMEMCACHED_WITH_SASL_SUPPORT
+    memcached_destroy_sasl_auth_data(ptr);
+#endif
+  }
+
+  if (memcached_is_allocated(ptr) && release_st)
+  {
+    libmemcached_free(ptr, ptr);
+  }
+}
+
+memcached_st *memcached_create(memcached_st *ptr)
+{
   if (ptr == NULL)
   {
     ptr= (memcached_st *)malloc(sizeof(memcached_st));
 
-    if (!ptr)
+    if (! ptr)
+    {
       return NULL; /*  MEMCACHED_MEMORY_ALLOCATION_FAILURE */
+    }
 
-    memset(ptr, 0, sizeof(memcached_st));
-    ptr->is_allocated= MEMCACHED_ALLOCATED;
+    ptr->options.is_allocated= true;
   }
   else
   {
-    memset(ptr, 0, sizeof(memcached_st));
+    ptr->options.is_allocated= false;
+  }
+
+#if 0
+  memcached_set_purging(ptr, false);
+  memcached_set_processing_input(ptr, false);
+#endif
+
+  if (! _memcached_init(ptr))
+  {
+    memcached_free(ptr);
+    return NULL;
   }
-  result_ptr= memcached_result_create(ptr, &ptr->result);
-  WATCHPOINT_ASSERT(result_ptr);
-  ptr->poll_timeout= MEMCACHED_DEFAULT_TIMEOUT;
-  ptr->connect_timeout= MEMCACHED_DEFAULT_TIMEOUT;
-  ptr->retry_timeout= 0;
-  ptr->distribution= MEMCACHED_DISTRIBUTION_MODULA;
+
+  if (! memcached_result_create(ptr, &ptr->result))
+  {
+    memcached_free(ptr);
+    return NULL;
+  }
+
+  WATCHPOINT_ASSERT_INITIALIZED(&ptr->result);
 
   return ptr;
 }
 
-void memcached_free(memcached_st *ptr)
+memcached_st *memcached_create_with_options(const char *string, size_t length)
 {
-  /* If we have anything open, lets close it now */
-  memcached_quit(ptr);
-  server_list_free(ptr, ptr->hosts);
-  memcached_result_free(&ptr->result);
+  memcached_st *self= memcached_create(NULL);
 
-  if (ptr->on_cleanup)
-    ptr->on_cleanup(ptr);
+  if (! self)
+    return NULL;
+
+  memcached_parse_options(self, string, length);
+
+  return self;
+}
 
-  if (ptr->is_allocated == MEMCACHED_ALLOCATED)
+void memcached_reset(memcached_st *ptr)
+{
+  WATCHPOINT_ASSERT(ptr);
+  if (! ptr)
+    return;
+
+  bool stored_is_allocated= memcached_is_allocated(ptr);
+  _free(ptr, false);
+  memcached_create(ptr);
+  memcached_set_allocated(ptr, stored_is_allocated);
+}
+
+void memcached_servers_reset(memcached_st *ptr)
+{
+  memcached_server_list_free(memcached_server_list(ptr));
+
+  memcached_server_list_set(ptr, NULL);
+  ptr->number_of_hosts= 0;
+  if (ptr->last_disconnected_server)
   {
-    if (ptr->call_free)
-      ptr->call_free(ptr, ptr);
-    else
-      free(ptr);
+    memcached_server_free(ptr->last_disconnected_server);
   }
-  else
-    ptr->is_allocated= MEMCACHED_USED;
+  ptr->last_disconnected_server= NULL;
+  ptr->server_failure_limit= 0;
+}
+
+void memcached_reset_last_disconnected_server(memcached_st *ptr)
+{
+  if (ptr->last_disconnected_server)
+  {
+    memcached_server_free(ptr->last_disconnected_server);
+    ptr->last_disconnected_server= NULL;
+  }
+}
+
+void memcached_free(memcached_st *ptr)
+{
+  _free(ptr, true);
 }
 
 /*
-  clone is the destination, while ptr is the structure to clone.
-  If ptr is NULL the call is the same as if a memcached_create() was
+  clone is the destination, while source is the structure to clone.
+  If source is NULL the call is the same as if a memcached_create() was
   called.
 */
-memcached_st *memcached_clone(memcached_st *clone, memcached_st *ptr)
+memcached_st *memcached_clone(memcached_st *clone, const memcached_st *source)
 {
-  memcached_return rc= MEMCACHED_SUCCESS;
+  memcached_return_t rc= MEMCACHED_SUCCESS;
   memcached_st *new_clone;
 
-  if (ptr == NULL)
+  if (source == NULL)
     return memcached_create(clone);
 
-  if (ptr->is_allocated == MEMCACHED_USED)
+  if (clone && memcached_is_allocated(clone))
   {
-    WATCHPOINT_ASSERT(0);
     return NULL;
   }
-  
+
   new_clone= memcached_create(clone);
-  
+
   if (new_clone == NULL)
     return NULL;
 
-  if (ptr->hosts)
-    rc= memcached_server_push(new_clone, ptr->hosts);
+  new_clone->flags= source->flags;
+  new_clone->send_size= source->send_size;
+  new_clone->recv_size= source->recv_size;
+  new_clone->poll_timeout= source->poll_timeout;
+  new_clone->connect_timeout= source->connect_timeout;
+  new_clone->retry_timeout= source->retry_timeout;
+  new_clone->distribution= source->distribution;
+
+  hashkit_st *hash_ptr;
+
+  hash_ptr= hashkit_clone(&new_clone->hashkit, &source->hashkit);
+  if (! hash_ptr)
+  {
+    memcached_free(new_clone);
+    return NULL;
+  }
+
+  hash_ptr= hashkit_clone(&new_clone->distribution_hashkit, &source->distribution_hashkit);
+  if (! hash_ptr)
+  {
+    memcached_free(new_clone);
+    return NULL;
+  }
+
+  new_clone->user_data= source->user_data;
+
+  new_clone->snd_timeout= source->snd_timeout;
+  new_clone->rcv_timeout= source->rcv_timeout;
+
+  new_clone->on_clone= source->on_clone;
+  new_clone->on_cleanup= source->on_cleanup;
+
+  new_clone->allocators= source->allocators;
+
+  new_clone->get_key_failure= source->get_key_failure;
+  new_clone->delete_trigger= source->delete_trigger;
+  new_clone->server_failure_limit= source->server_failure_limit;
+  new_clone->io_msg_watermark= source->io_msg_watermark;
+  new_clone->io_bytes_watermark= source->io_bytes_watermark;
+  new_clone->io_key_prefetch= source->io_key_prefetch;
+  new_clone->number_of_replicas= source->number_of_replicas;
+  new_clone->tcp_keepidle= source->tcp_keepidle;
+
+  if (memcached_server_count(source))
+    rc= memcached_push(new_clone, source);
 
   if (rc != MEMCACHED_SUCCESS)
   {
@@ -87,26 +305,58 @@ memcached_st *memcached_clone(memcached_st *clone, memcached_st *ptr)
   }
 
 
-  new_clone->flags= ptr->flags;
-  new_clone->send_size= ptr->send_size;
-  new_clone->recv_size= ptr->recv_size;
-  new_clone->poll_timeout= ptr->poll_timeout;
-  new_clone->connect_timeout= ptr->connect_timeout;
-  new_clone->retry_timeout= ptr->retry_timeout;
-  new_clone->distribution= ptr->distribution;
-  new_clone->hash= ptr->hash;
-  new_clone->user_data= ptr->user_data;
+  new_clone->prefix_key= memcached_array_clone(new_clone, source->prefix_key);
+
+#ifdef LIBMEMCACHED_WITH_SASL_SUPPORT
+  if (source->sasl.callbacks)
+  {
+    if (memcached_clone_sasl(new_clone, source) != MEMCACHED_SUCCESS)
+    {
+      memcached_free(new_clone);
+      return NULL;
+    }
+  }
+#endif
+
+  rc= run_distribution(new_clone);
+
+  if (rc != MEMCACHED_SUCCESS)
+  {
+    memcached_free(new_clone);
 
-  new_clone->on_clone= ptr->on_clone;
-  new_clone->on_cleanup= ptr->on_cleanup;
-  new_clone->call_free= ptr->call_free;
-  new_clone->call_malloc= ptr->call_malloc;
-  new_clone->call_realloc= ptr->call_realloc;
-  new_clone->get_key_failure= ptr->get_key_failure;
-  new_clone->delete_trigger= ptr->delete_trigger;
+    return NULL;
+  }
 
-  if (ptr->on_clone)
-    ptr->on_clone(ptr, new_clone);
+  if (source->on_clone)
+    source->on_clone(new_clone, source);
 
   return new_clone;
 }
+
+void *memcached_get_user_data(const memcached_st *ptr)
+{
+  return ptr->user_data;
+}
+
+void *memcached_set_user_data(memcached_st *ptr, void *data)
+{
+  void *ret= ptr->user_data;
+  ptr->user_data= data;
+
+  return ret;
+}
+
+memcached_return_t memcached_push(memcached_st *destination, const memcached_st *source)
+{
+  return memcached_server_push(destination, source->servers);
+}
+
+memcached_server_write_instance_st memcached_server_instance_fetch(memcached_st *ptr, uint32_t server_key)
+{
+  return &ptr->servers[server_key];
+}
+
+memcached_server_instance_st memcached_server_instance_by_position(const memcached_st *ptr, uint32_t server_key)
+{
+  return &ptr->servers[server_key];
+}