/* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Libmemcached library
*
* Copyright (C) 2011 Data Differential, http://datadifferential.com/
* 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/options.hpp>
#include <libmemcached/csl/context.h>
const char *memcached_parse_filename(memcached_st *memc)
{
assert_msg(memc, "Invalid memcached_st");
return memcached_array_string(memc->configure.filename);
}
size_t memcached_parse_filename_length(memcached_st *memc)
{
return memcached_array_size(memc->configure.filename);
}
static memcached_return_t _parse_file_options(memcached_st& self, memcached_array_st *real_name)
{
FILE *fp= fopen(memcached_array_string(real_name), "r");
if (not fp)
{
memcached_string_t error_message= memcached_array_to_string(real_name);
memcached_return_t rc= memcached_set_errno(self, errno, MEMCACHED_AT, error_message);
return rc;
}
char buffer[BUFSIZ];
memcached_return_t rc= MEMCACHED_INVALID_ARGUMENTS;
while (fgets(buffer, sizeof(buffer), fp))
{
size_t length= strlen(buffer);
if (length == 1 and buffer[0] == '\n')
continue;
if (memcached_failed(rc= memcached_parse_configuration(&self, buffer, length)))
break;
}
fclose(fp);
return rc;
}
memcached_return_t libmemcached_check_configuration(const char *option_string, size_t length, char *error_buffer, size_t error_buffer_size)
{
memcached_st memc, *memc_ptr;
if (option_string == NULL or length == 0)
{
return MEMCACHED_INVALID_ARGUMENTS;
}
if (error_buffer and error_buffer_size)
{
error_buffer[0]= 0;
}
if (not (memc_ptr= memcached_create(&memc)))
{
return MEMCACHED_MEMORY_ALLOCATION_FAILURE;
}
memcached_return_t rc= memcached_parse_configuration(memc_ptr, option_string, length);
if (memcached_failed(rc) and error_buffer and error_buffer_size)
{
strncpy(error_buffer, memcached_last_error_message(memc_ptr), error_buffer_size);
error_buffer[error_buffer_size -1]= 0;
}
bool has_filename= memcached_behavior_get(memc_ptr, MEMCACHED_BEHAVIOR_LOAD_FROM_FILE);
if (memcached_success(rc) and has_filename)
{
assert_msg(memcached_parse_filename(memc_ptr), "Invalid configuration file");
assert_msg(memcached_parse_filename_length(memc_ptr), "Invalid configuration file");
rc= _parse_file_options(*memc_ptr, memc_ptr->configure.filename);
if (memcached_failed(rc) and error_buffer and error_buffer_size)
{
strncpy(error_buffer, memcached_last_error_message(memc_ptr), error_buffer_size);
error_buffer[error_buffer_size -1]= 0;
}
}
memcached_free(memc_ptr);
return rc;
}
memcached_return_t memcached_parse_configuration(memcached_st *self, char const *option_string, size_t length)
{
WATCHPOINT_ASSERT(self);
if (not self)
{
return MEMCACHED_INVALID_ARGUMENTS;
}
memcached_return_t rc;
Context context(option_string, length, self, rc);
context.start();
return rc;
}
void memcached_set_configuration_file(memcached_st *self, const char *filename, size_t filename_length)
{
assert_msg(filename, "Invalid filename");
assert_msg(filename_length, "Invalid filename_length");
memcached_array_free(self->configure.filename);
self->configure.filename= memcached_strcpy(self, filename, filename_length);
}
memcached_return_t memcached_parse_configure_file(memcached_st& self, const char *filename, size_t length)
{
if (not filename)
{
return memcached_set_error(self, MEMCACHED_INVALID_ARGUMENTS, MEMCACHED_AT);
}
WATCHPOINT_ASSERT(self);
if (not length)
{
return memcached_set_error(self, MEMCACHED_INVALID_ARGUMENTS, MEMCACHED_AT);
}
memcached_array_st *tmp_array= memcached_strcpy(&self, filename, length);
if (not tmp_array)
{
return memcached_set_error(self, MEMCACHED_MEMORY_ALLOCATION_FAILURE, MEMCACHED_AT);
}
memcached_return_t rc= memcached_parse_configure_file(self, *tmp_array);
memcached_array_free(tmp_array);
return rc;
}
memcached_return_t memcached_parse_configure_file(memcached_st& self, memcached_array_st& filename)
{
WATCHPOINT_ASSERT(memcached_array_size(&filename));
if (not memcached_array_size(&filename))
{
return memcached_set_error(self, MEMCACHED_INVALID_ARGUMENTS, MEMCACHED_AT);
}
return _parse_file_options(self, &filename);
}