X-Git-Url: https://git.m6w6.name/?a=blobdiff_plain;f=libmemcached%2Fmemcached.c;h=3d2539eb4c25668358ded45085efe86f6130a8ec;hb=5ba395ad3a28f000bdabc7312dcee483c14d996e;hp=2b96d422682edf59527f0aafca0838bab20708a8;hpb=b70595336b2914550af90318eca857dfb02d72de;p=m6w6%2Flibmemcached

diff --git a/libmemcached/memcached.c b/libmemcached/memcached.c
index 2b96d422..3d2539eb 100644
--- a/libmemcached/memcached.c
+++ b/libmemcached/memcached.c
@@ -1,13 +1,178 @@
-/*
-  Memcached library
-*/
-#include "common.h"
+/*  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
+ * 
+ *  Libmemcached library
+ *
+ *  Copyright (C) 2011 Data Differential, http://datadifferential.com/
+ *  Copyright (C) 2006-2009 Brian Aker All rights reserved.
+ *
+ *  Redistribution and use in source and binary forms, with or without
+ *  modification, are permitted provided that the following conditions are
+ *  met:
+ *
+ *      * Redistributions of source code must retain the above copyright
+ *  notice, this list of conditions and the following disclaimer.
+ *
+ *      * Redistributions in binary form must reproduce the above
+ *  copyright notice, this list of conditions and the following disclaimer
+ *  in the documentation and/or other materials provided with the
+ *  distribution.
+ *
+ *      * The names of its contributors may not be used to endorse or
+ *  promote products derived from this software without specific prior
+ *  written permission.
+ *
+ *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <libmemcached/common.h>
+#include <libmemcached/virtual_bucket.h>
+
+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,
+    .hash_with_prefix_key= false,
+    .no_block= false,
+    .no_reply= false,
+    .randomize_replica_read= false,
+    .reuse_memory= false,
+    .support_cas= false,
+    .tcp_nodelay= false,
+    .use_sort_hosts= false,
+    .use_udp= false,
+    .verify_key= false,
+    .tcp_keepalive= false,
+  },
+};
+
+static inline bool _memcached_init(memcached_st *self)
+{
+  self->state= global_copy.state;
+  self->flags= global_copy.flags;
+  self->virtual_bucket= NULL;
+
+  self->distribution= MEMCACHED_DISTRIBUTION_MODULA;
+
+  hashkit_st *hash_ptr;
+  hash_ptr= hashkit_create(&self->hashkit);
+  if (! hash_ptr)
+    return false;
+
+  self->ketama.continuum= NULL;
+  self->ketama.continuum_count= 0;
+  self->ketama.continuum_points_counter= 0;
+  self->ketama.next_distribution_rebuild= 0;
+  self->ketama.weighted= false;
+
+  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->poll_timeout= MEMCACHED_DEFAULT_TIMEOUT;
+  self->connect_timeout= MEMCACHED_DEFAULT_CONNECT_TIMEOUT;
+  self->retry_timeout= 0;
+
+  self->send_size= -1;
+  self->recv_size= -1;
+
+  self->user_data= NULL;
+  self->number_of_replicas= 0;
+  hash_ptr= hashkit_create(&self->distribution_hashkit);
+  if (! hash_ptr)
+    return false;
+
+  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;
+  self->configure.filename= 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);
+
+  memcached_virtual_bucket_free(ptr);
+
+  if (ptr->last_disconnected_server)
+    memcached_server_free(ptr->last_disconnected_server);
+
+  if (ptr->on_cleanup)
+    ptr->on_cleanup(ptr);
+
+  if (ptr->ketama.continuum)
+    libmemcached_free(ptr, ptr->ketama.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 (release_st)
+  {
+    memcached_array_free(ptr->configure.filename);
+    ptr->configure.filename= NULL;
+  }
+
+  if (memcached_is_allocated(ptr) && release_st)
+  {
+    libmemcached_free(ptr, ptr);
+  }
+}
 
 memcached_st *memcached_create(memcached_st *ptr)
 {
   if (ptr == NULL)
   {
-    ptr= (memcached_st *)calloc(1, sizeof(memcached_st));
+    ptr= (memcached_st *)malloc(sizeof(memcached_st));
 
     if (! ptr)
     {
@@ -18,7 +183,7 @@ memcached_st *memcached_create(memcached_st *ptr)
   }
   else
   {
-    memset(ptr, 0, sizeof(memcached_st));
+    ptr->options.is_allocated= false;
   }
 
 #if 0
@@ -26,92 +191,97 @@ memcached_st *memcached_create(memcached_st *ptr)
   memcached_set_processing_input(ptr, false);
 #endif
 
-  memcached_set_memory_allocators(ptr, NULL, NULL, NULL, NULL);
+  if (! _memcached_init(ptr))
+  {
+    memcached_free(ptr);
+    return NULL;
+  }
 
   if (! memcached_result_create(ptr, &ptr->result))
   {
     memcached_free(ptr);
     return NULL;
   }
-  ptr->poll_timeout= MEMCACHED_DEFAULT_TIMEOUT;
-  ptr->connect_timeout= MEMCACHED_DEFAULT_TIMEOUT;
-  ptr->retry_timeout= 0;
-  ptr->distribution= MEMCACHED_DISTRIBUTION_MODULA;
-
-
-  ptr->send_size= -1;
-  ptr->recv_size= -1;
-
-  /* TODO, Document why we picked these defaults */
-  ptr->io_msg_watermark= 500;
-  ptr->io_bytes_watermark= 65 * 1024;
 
   WATCHPOINT_ASSERT_INITIALIZED(&ptr->result);
 
   return ptr;
 }
 
-void server_list_free(memcached_st *ptr, memcached_server_st *servers)
+memcached_st *memcached_create_with_options(const char *string, size_t length)
 {
-  uint32_t x;
+  memcached_st *self= memcached_create(NULL);
 
-  if (servers == NULL)
-    return;
+  if (! self)
+    return NULL;
 
-  for (x= 0; x < memcached_servers_count(servers); x++)
+  memcached_return_t rc;
+  if ((rc= memcached_parse_configuration(self, string, length)) != MEMCACHED_SUCCESS)
   {
-    if (servers[x].address_info)
-    {
-      freeaddrinfo(servers[x].address_info);
-      servers[x].address_info= NULL;
-    }
+    return self;
   }
 
-  if (ptr)
+  if (memcached_parse_filename(self))
   {
-    ptr->call_free(ptr, servers);
+    rc= memcached_parse_configure_file(self, memcached_parse_filename(self), memcached_parse_filename_length(self));
   }
-  else
+
+  return self;
+}
+
+memcached_return_t memcached_reset(memcached_st *ptr)
+{
+  WATCHPOINT_ASSERT(ptr);
+  if (! ptr)
+    return MEMCACHED_INVALID_ARGUMENTS;
+
+  bool stored_is_allocated= memcached_is_allocated(ptr);
+  _free(ptr, false);
+  memcached_create(ptr);
+  memcached_set_allocated(ptr, stored_is_allocated);
+
+  if (ptr->configure.filename)
   {
-    free(servers);
+    return memcached_parse_configure_file(ptr, memcached_param_array(ptr->configure.filename));
   }
+
+  return MEMCACHED_SUCCESS;
 }
 
 void memcached_servers_reset(memcached_st *ptr)
 {
-  server_list_free(ptr, memcached_server_list(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)
+  {
+    memcached_server_free(ptr->last_disconnected_server);
+  }
   ptr->last_disconnected_server= NULL;
   ptr->server_failure_limit= 0;
 }
 
-void memcached_free(memcached_st *ptr)
+void memcached_reset_last_disconnected_server(memcached_st *ptr)
 {
-  /* If we have anything open, lets close it now */
-  memcached_quit(ptr);
-  server_list_free(ptr, memcached_server_list(ptr));
-  memcached_result_free(&ptr->result);
-
-  if (ptr->on_cleanup)
-    ptr->on_cleanup(ptr);
-
-  if (ptr->continuum)
-    ptr->call_free(ptr, ptr->continuum);
-
-  if (memcached_is_allocated(ptr))
+  if (ptr->last_disconnected_server)
   {
-    ptr->call_free(ptr, ptr);
+    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 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 *source)
+memcached_st *memcached_clone(memcached_st *clone, const memcached_st *source)
 {
   memcached_return_t rc= MEMCACHED_SUCCESS;
   memcached_st *new_clone;
@@ -136,8 +306,23 @@ memcached_st *memcached_clone(memcached_st *clone, memcached_st *source)
   new_clone->connect_timeout= source->connect_timeout;
   new_clone->retry_timeout= source->retry_timeout;
   new_clone->distribution= source->distribution;
-  new_clone->hash= source->hash;
-  new_clone->distribution_hash= source->distribution_hash;
+
+  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;
@@ -145,10 +330,9 @@ memcached_st *memcached_clone(memcached_st *clone, memcached_st *source)
 
   new_clone->on_clone= source->on_clone;
   new_clone->on_cleanup= source->on_cleanup;
-  new_clone->call_free= source->call_free;
-  new_clone->call_malloc= source->call_malloc;
-  new_clone->call_realloc= source->call_realloc;
-  new_clone->call_calloc= source->call_calloc;
+
+  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;
@@ -156,9 +340,10 @@ memcached_st *memcached_clone(memcached_st *clone, memcached_st *source)
   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_list(source))
-    rc= memcached_server_push(new_clone, memcached_server_list(source));
+  if (memcached_server_count(source))
+    rc= memcached_push(new_clone, source);
 
   if (rc != MEMCACHED_SUCCESS)
   {
@@ -168,11 +353,18 @@ memcached_st *memcached_clone(memcached_st *clone, memcached_st *source)
   }
 
 
-  if (source->prefix_key[0] != 0)
+  new_clone->prefix_key= memcached_array_clone(new_clone, source->prefix_key);
+
+#ifdef LIBMEMCACHED_WITH_SASL_SUPPORT
+  if (source->sasl.callbacks)
   {
-    strcpy(new_clone->prefix_key, source->prefix_key);
-    new_clone->prefix_key_length= source->prefix_key_length;
+    if (memcached_clone_sasl(new_clone, source) != MEMCACHED_SUCCESS)
+    {
+      memcached_free(new_clone);
+      return NULL;
+    }
   }
+#endif
 
   rc= run_distribution(new_clone);
 
@@ -184,12 +376,12 @@ memcached_st *memcached_clone(memcached_st *clone, memcached_st *source)
   }
 
   if (source->on_clone)
-    source->on_clone(source, new_clone);
+    source->on_clone(new_clone, source);
 
   return new_clone;
 }
 
-void *memcached_get_user_data(memcached_st *ptr)
+void *memcached_get_user_data(const memcached_st *ptr)
 {
   return ptr->user_data;
 }
@@ -201,3 +393,18 @@ void *memcached_set_user_data(memcached_st *ptr, void *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];
+}