-#include "common.h"
+/* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
+ *
+ * LibMemcached
+ *
+ * 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.
+ *
+ */
-memcached_return_t memcached_purge(memcached_server_write_instance_st ptr)
+
+#include <libmemcached/common.h>
+
+#define memcached_set_purging(__object, __value) ((__object)->state.is_purging= (__value))
+
+class Purge
+{
+public:
+ Purge(Memcached* arg) :
+ _memc(arg)
+ {
+ memcached_set_purging(_memc, true);
+ }
+
+ ~Purge()
+ {
+ memcached_set_purging(_memc, false);
+ }
+
+private:
+ Memcached* _memc;
+};
+
+class PollTimeout
+{
+public:
+ PollTimeout(Memcached* arg) :
+ _timeout(arg->poll_timeout),
+ _origin(arg->poll_timeout)
+ {
+ _origin = 2000;
+ }
+
+ ~PollTimeout()
+ {
+ _origin= _timeout;
+ }
+
+private:
+ int32_t _timeout;
+ int32_t& _origin;
+};
+
+bool memcached_purge(memcached_instance_st* ptr)
{
- memcached_return_t ret= MEMCACHED_SUCCESS;
- memcached_st *root= (memcached_st *)ptr->root;
+ Memcached *root= (Memcached *)ptr->root;
if (memcached_is_purging(ptr->root) || /* already purging */
(memcached_server_response_count(ptr) < ptr->root->io_msg_watermark &&
(ptr->io_bytes_sent >= ptr->root->io_bytes_watermark &&
memcached_server_response_count(ptr) < 2))
{
- return MEMCACHED_SUCCESS;
+ return true;
}
- /* memcached_io_write and memcached_response may call memcached_purge
- so we need to be able stop any recursion.. */
- memcached_set_purging(root, true);
+ /*
+ memcached_io_write and memcached_response may call memcached_purge
+ so we need to be able stop any recursion..
+ */
+ Purge set_purge(root);
- WATCHPOINT_ASSERT(ptr->fd != -1);
- /* Force a flush of the buffer to ensure that we don't have the n-1 pending
- requests buffered up.. */
- if (memcached_io_write(ptr, NULL, 0, true) == -1)
+ WATCHPOINT_ASSERT(ptr->fd != INVALID_SOCKET);
+ /*
+ Force a flush of the buffer to ensure that we don't have the n-1 pending
+ requests buffered up..
+ */
+ if (memcached_io_write(ptr) == false)
{
- memcached_set_purging(root, true);
-
- return memcached_set_error(*ptr, MEMCACHED_WRITE_FAILURE, MEMCACHED_AT);
+ memcached_set_error(*ptr, MEMCACHED_WRITE_FAILURE, MEMCACHED_AT);
+ return false;
}
- WATCHPOINT_ASSERT(ptr->fd != -1);
+ WATCHPOINT_ASSERT(ptr->fd != INVALID_SOCKET);
+ bool is_successful= true;
uint32_t no_msg= memcached_server_response_count(ptr) - 1;
if (no_msg > 0)
{
memcached_result_st result;
- memcached_result_st *result_ptr;
- char buffer[SMALL_STRING_LEN];
/*
* We need to increase the timeout, because we might be waiting for
* data to be sent from the server (the commands was in the output buffer
* and just flushed
*/
- const int32_t timeo= ptr->root->poll_timeout;
- root->poll_timeout= 2000;
+ PollTimeout poll_timeout(ptr->root);
- result_ptr= memcached_result_create(root, &result);
- WATCHPOINT_ASSERT(result_ptr);
+ memcached_result_st* result_ptr= memcached_result_create(root, &result);
+ assert(result_ptr);
for (uint32_t x= 0; x < no_msg; x++)
{
memcached_result_reset(result_ptr);
- memcached_return_t rc= memcached_read_one_response(ptr, buffer,
- sizeof (buffer),
- result_ptr);
+ memcached_return_t rc= memcached_read_one_response(ptr, result_ptr);
/*
* Purge doesn't care for what kind of command results that is received.
* The only kind of errors I care about if is I'm out of sync with the
* protocol or have problems reading data from the network..
*/
- if (rc== MEMCACHED_PROTOCOL_ERROR || rc == MEMCACHED_UNKNOWN_READ_FAILURE)
+ if (rc== MEMCACHED_PROTOCOL_ERROR or rc == MEMCACHED_UNKNOWN_READ_FAILURE or rc == MEMCACHED_READ_FAILURE)
{
WATCHPOINT_ERROR(rc);
- ret= rc;
memcached_io_reset(ptr);
- memcached_set_error(*ptr, rc, MEMCACHED_AT);
+ is_successful= false;
}
if (ptr->root->callbacks != NULL)
{
memcached_callback_st cb = *ptr->root->callbacks;
- if (rc == MEMCACHED_SUCCESS)
+ if (memcached_success(rc))
{
for (uint32_t y= 0; y < cb.number_of_callback; y++)
{
- rc = (*cb.callback[y])(ptr->root, result_ptr, cb.context);
- if (rc != MEMCACHED_SUCCESS)
+ if (memcached_fatal((*cb.callback[y])(ptr->root, result_ptr, cb.context)))
+ {
break;
+ }
}
}
}
}
memcached_result_free(result_ptr);
- root->poll_timeout= timeo;
}
- memcached_set_purging(root, false);
- return ret;
+ return is_successful;
}