-static memcached_return memcached_value_fetch(memcached_st *ptr, char *key, size_t *key_length,
- memcached_string_st *value,
- uint16_t *flags,
- uint64_t *cas,
- char load_key,
- unsigned int server_key)
-{
- memcached_return rc;
- char buffer[MEMCACHED_DEFAULT_COMMAND_SIZE];
- char *string_ptr;
- char *end_ptr;
-
- end_ptr= buffer + MEMCACHED_DEFAULT_COMMAND_SIZE;
-
- *flags= 0;
-
- memcached_string_reset(value);
-
- rc= memcached_response(ptr, buffer, MEMCACHED_DEFAULT_COMMAND_SIZE, server_key);
-
- if (rc == MEMCACHED_SUCCESS)
- {
- char *next_ptr;
- size_t value_length;
-
- string_ptr= buffer;
- string_ptr+= 6; /* "VALUE " */
-
- /* We load the key */
- if (load_key)
- {
- *key_length= 0;
-
- for (; end_ptr > string_ptr && *string_ptr != ' '; string_ptr++)
- {
- *key= *string_ptr;
- key++;
- (*key_length)++;
- }
- }
- else /* Skip characters */
- for (; end_ptr > string_ptr && *string_ptr != ' '; string_ptr++);
-
- if (end_ptr == string_ptr)
- goto read_error;
-
- /* Flags fetch move past space */
- string_ptr++;
- if (end_ptr == string_ptr)
- goto read_error;
- for (next_ptr= string_ptr; end_ptr > string_ptr && *string_ptr != ' '; string_ptr++);
- *flags= (uint16_t)strtol(next_ptr, &string_ptr, 10);
-
- if (end_ptr == string_ptr)
- goto read_error;
-
- /* Length fetch move past space*/
- string_ptr++;
- if (end_ptr == string_ptr)
- goto read_error;
-
- for (next_ptr= string_ptr; end_ptr > string_ptr && *string_ptr != ' '; string_ptr++);
- value_length= (size_t)strtoll(next_ptr, &string_ptr, 10);
-
- if (end_ptr == string_ptr)
- goto read_error;
-
- /* Skip spaces */
- if (*string_ptr == '\r')
- {
- /* Skip past the \r\n */
- string_ptr+= 2;
- }
- else
- {
- string_ptr++;
- for (next_ptr= string_ptr; end_ptr > string_ptr && *string_ptr != ' '; string_ptr++);
- if (cas)
- *cas= (size_t)strtoll(next_ptr, &string_ptr, 10);
- }
-
- if (end_ptr < string_ptr)
- goto read_error;
-
- if (value_length)
- {
- size_t read_length;
- size_t to_read;
- char *value_ptr;
-
- /* We add two bytes so that we can walk the \r\n */
- rc= memcached_string_check(value, value_length+2);
- if (rc != MEMCACHED_SUCCESS)
- {
- value_length= 0;
- return MEMCACHED_MEMORY_ALLOCATION_FAILURE;
- }
-
- value_ptr= memcached_string_value(value);
- read_length= 0;
- /*
- We read the \r\n into the string since not doing so is more
- cycles then the waster of memory to do so.
-
- We are null terminating through, which will most likely make
- some people lazy about using the return length.
- */
- to_read= (value_length) + 2;
-
- read_length= memcached_io_read(ptr, server_key,
- value_ptr, to_read);
-
- if (read_length != (size_t)(value_length + 2))
- {
- goto read_error;
- }
-
- /* This next bit blows the API, but this is internal....*/
- {
- char *char_ptr;
- char_ptr= memcached_string_value(value);;
- char_ptr[value_length]= 0;
- char_ptr[value_length + 1]= 0;
- memcached_string_set_length(value, value_length);
- }
-
- return MEMCACHED_SUCCESS;
- }
- }
- else if (rc == MEMCACHED_END)
- rc= MEMCACHED_NOTFOUND;
-
- return rc;
-
-read_error:
- return MEMCACHED_PARTIAL_READ;
-}
-