#include <libmemcached/common.h>
+namespace {
+ memcached_return_t send_quit_message(memcached_instance_st* instance)
+ {
+ memcached_return_t rc;
+ if (instance->root->flags.binary_protocol)
+ {
+ protocol_binary_request_quit request= {}; // = {.bytes= {0}};
+
+ initialize_binary_request(instance, request.message.header);
+
+ request.message.header.request.opcode = PROTOCOL_BINARY_CMD_QUIT;
+ request.message.header.request.datatype = PROTOCOL_BINARY_RAW_BYTES;
+
+ libmemcached_io_vector_st vector[]=
+ {
+ { request.bytes, sizeof(request.bytes) }
+ };
+
+ rc= memcached_vdo(instance, vector, 1, true);
+ }
+ else
+ {
+ libmemcached_io_vector_st vector[]=
+ {
+ { memcached_literal_param("quit\r\n") }
+ };
+
+ rc= memcached_vdo(instance, vector, 1, true);
+ }
+
+ return rc;
+ }
+
+ void drain_instance(memcached_instance_st* instance)
+ {
+ /* read until socket is closed, or there is an error
+ * closing the socket before all data is read
+ * results in server throwing away all data which is
+ * not read
+ *
+ * In .40 we began to only do this if we had been doing buffered
+ * requests of had replication enabled.
+ */
+ if (instance->root->flags.buffer_requests or instance->root->number_of_replicas)
+ {
+ memcached_io_slurp(instance);
+ }
+
+ /*
+ * memcached_io_read may call memcached_quit_server with io_death if
+ * it encounters problems, but we don't care about those occurences.
+ * The intention of that loop is to drain the data sent from the
+ * server to ensure that the server processed all of the data we
+ * sent to the server.
+ */
+ instance->server_failure_counter= 0;
+ instance->server_timeout_counter= 0;
+ }
+}
+
/*
This closes all connections (forces flush of input as well).
will force data to be completed.
*/
-void memcached_quit_server(org::libmemcached::Instance* instance, bool io_death)
+void memcached_quit_server(memcached_instance_st* instance, bool io_death)
{
if (instance->valid())
{
if (io_death == false and memcached_is_udp(instance->root) == false and instance->is_shutting_down() == false)
{
- memcached_return_t rc;
- if (instance->root->flags.binary_protocol)
- {
- protocol_binary_request_quit request= {}; // = {.bytes= {0}};
-
- initialize_binary_request(instance, request.message.header);
-
- request.message.header.request.opcode = PROTOCOL_BINARY_CMD_QUIT;
- request.message.header.request.datatype = PROTOCOL_BINARY_RAW_BYTES;
-
- libmemcached_io_vector_st vector[]=
- {
- { request.bytes, sizeof(request.bytes) }
- };
-
- rc= memcached_vdo(instance, vector, 1, true);
- }
- else
- {
- libmemcached_io_vector_st vector[]=
- {
- { memcached_literal_param("quit\r\n") }
- };
-
- rc= memcached_vdo(instance, vector, 1, true);
- }
+ send_quit_message(instance);
instance->start_close_socket();
-
- /* read until socket is closed, or there is an error
- * closing the socket before all data is read
- * results in server throwing away all data which is
- * not read
- *
- * In .40 we began to only do this if we had been doing buffered
- * requests of had replication enabled.
- */
- if (memcached_success(rc) and (instance->root->flags.buffer_requests or instance->root->number_of_replicas))
- {
- if (0)
- {
- memcached_return_t rc_slurp;
- while (memcached_continue(rc_slurp= memcached_io_slurp(instance))) {} ;
- WATCHPOINT_ASSERT(rc_slurp == MEMCACHED_CONNECTION_FAILURE);
- }
- else
- {
- memcached_io_slurp(instance);
- }
- }
-
- /*
- * memcached_io_read may call memcached_quit_server with io_death if
- * it encounters problems, but we don't care about those occurences.
- * The intention of that loop is to drain the data sent from the
- * server to ensure that the server processed all of the data we
- * sent to the server.
- */
- instance->server_failure_counter= 0;
+ drain_instance(instance);
}
-
}
instance->close_socket();
- instance->state= MEMCACHED_SERVER_STATE_NEW;
- instance->cursor_active_= 0;
- instance->io_bytes_sent= 0;
- instance->write_buffer_offset= size_t(instance->root and memcached_is_udp(instance->root) ? UDP_DATAGRAM_HEADER_LENGTH : 0);
- instance->read_buffer_length= 0;
- instance->read_ptr= instance->read_buffer;
- instance->options.is_shutting_down= false;
- memcached_server_response_reset(instance);
-
- // We reset the version so that if we end up talking to a different server
- // we don't have stale server version information.
- instance->major_version= instance->minor_version= instance->micro_version= UINT8_MAX;
-
- if (io_death)
+ if (io_death and memcached_is_udp(instance->root))
{
+ /*
+ If using UDP, we should stop using the server briefly on every IO
+ failure. If using TCP, it may be that the connection went down a
+ short while ago (e.g. the server failed) and we've only just
+ noticed, so we should only set the retry timeout on a connect
+ failure (which doesn't call this method).
+ */
memcached_mark_server_for_timeout(instance);
}
}
-void send_quit(memcached_st *memc)
+void send_quit(Memcached *memc)
{
for (uint32_t x= 0; x < memcached_server_count(memc); x++)
{
- org::libmemcached::Instance* instance= memcached_instance_fetch(memc, x);
+ memcached_instance_st* instance= memcached_instance_fetch(memc, x);
memcached_quit_server(instance, false);
}
}
-void memcached_quit(memcached_st *memc)
+void memcached_quit(memcached_st *shell)
{
+ Memcached* memc= memcached2Memcached(shell);
memcached_return_t rc;
if (memcached_failed(rc= initialize_query(memc, true)))
{