4 #include <sys/socket.h>
5 #include <netinet/tcp.h>
8 This function is used to modify the behavior of running client.
10 We quit all connections so we can reset the sockets.
13 static void set_behavior_flag(memcached_st
*ptr
, memcached_flags temp_flag
, uint64_t data
)
16 ptr
->flags
|= temp_flag
;
18 ptr
->flags
&= ~temp_flag
;
21 memcached_return
memcached_behavior_set(memcached_st
*ptr
,
22 memcached_behavior flag
,
27 case MEMCACHED_BEHAVIOR_IO_MSG_WATERMARK
:
28 ptr
->io_msg_watermark
= (int32_t)data
;
30 case MEMCACHED_BEHAVIOR_IO_BYTES_WATERMARK
:
31 ptr
->io_bytes_watermark
= (int32_t)data
;
33 case MEMCACHED_BEHAVIOR_SND_TIMEOUT
:
34 ptr
->snd_timeout
= (int32_t)data
;
36 case MEMCACHED_BEHAVIOR_RCV_TIMEOUT
:
37 ptr
->rcv_timeout
= (int32_t)data
;
39 case MEMCACHED_BEHAVIOR_SERVER_FAILURE_LIMIT
:
40 ptr
->server_failure_limit
= (uint32_t)data
;
42 case MEMCACHED_BEHAVIOR_BINARY_PROTOCOL
:
44 set_behavior_flag(ptr
, MEM_VERIFY_KEY
, 0);
45 set_behavior_flag(ptr
, MEM_BINARY_PROTOCOL
, data
);
47 case MEMCACHED_BEHAVIOR_SUPPORT_CAS
:
48 set_behavior_flag(ptr
, MEM_SUPPORT_CAS
, data
);
50 case MEMCACHED_BEHAVIOR_NO_BLOCK
:
51 set_behavior_flag(ptr
, MEM_NO_BLOCK
, data
);
53 case MEMCACHED_BEHAVIOR_BUFFER_REQUESTS
:
54 set_behavior_flag(ptr
, MEM_BUFFER_REQUESTS
, data
);
57 case MEMCACHED_BEHAVIOR_USE_UDP
:
58 if (ptr
->number_of_hosts
)
59 return MEMCACHED_FAILURE
;
60 set_behavior_flag(ptr
, MEM_USE_UDP
, data
);
62 set_behavior_flag(ptr
,MEM_NOREPLY
,data
);
64 case MEMCACHED_BEHAVIOR_TCP_NODELAY
:
65 set_behavior_flag(ptr
, MEM_TCP_NODELAY
, data
);
68 case MEMCACHED_BEHAVIOR_DISTRIBUTION
:
70 ptr
->distribution
= (memcached_server_distribution
)(data
);
71 if (ptr
->distribution
== MEMCACHED_DISTRIBUTION_RANDOM
)
75 run_distribution(ptr
);
78 case MEMCACHED_BEHAVIOR_KETAMA
:
82 ptr
->hash
= MEMCACHED_HASH_MD5
;
83 ptr
->distribution
= MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA
;
90 run_distribution(ptr
);
93 case MEMCACHED_BEHAVIOR_KETAMA_WEIGHTED
:
95 ptr
->hash
= MEMCACHED_HASH_MD5
;
96 ptr
->distribution
= MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA
;
97 set_behavior_flag(ptr
, MEM_KETAMA_WEIGHTED
, data
);
98 run_distribution(ptr
);
101 case MEMCACHED_BEHAVIOR_HASH
:
102 ptr
->hash
= (memcached_hash
)(data
);
104 case MEMCACHED_BEHAVIOR_KETAMA_HASH
:
105 ptr
->hash_continuum
= (memcached_hash
)(data
);
106 run_distribution(ptr
);
108 case MEMCACHED_BEHAVIOR_CACHE_LOOKUPS
:
109 set_behavior_flag(ptr
, MEM_USE_CACHE_LOOKUPS
, data
);
112 case MEMCACHED_BEHAVIOR_VERIFY_KEY
:
113 if (ptr
->flags
& MEM_BINARY_PROTOCOL
)
115 set_behavior_flag(ptr
, MEM_VERIFY_KEY
, data
);
117 case MEMCACHED_BEHAVIOR_SORT_HOSTS
:
119 set_behavior_flag(ptr
, MEM_USE_SORT_HOSTS
, data
);
120 run_distribution(ptr
);
124 case MEMCACHED_BEHAVIOR_POLL_TIMEOUT
:
125 ptr
->poll_timeout
= (int32_t)data
;
127 case MEMCACHED_BEHAVIOR_CONNECT_TIMEOUT
:
128 ptr
->connect_timeout
= (int32_t)data
;
130 case MEMCACHED_BEHAVIOR_RETRY_TIMEOUT
:
131 ptr
->retry_timeout
= (int32_t)data
;
133 case MEMCACHED_BEHAVIOR_SOCKET_SEND_SIZE
:
134 ptr
->send_size
= (int32_t)data
;
137 case MEMCACHED_BEHAVIOR_SOCKET_RECV_SIZE
:
138 ptr
->recv_size
= (int32_t)data
;
141 case MEMCACHED_BEHAVIOR_USER_DATA
:
142 return MEMCACHED_FAILURE
;
143 case MEMCACHED_BEHAVIOR_HASH_WITH_PREFIX_KEY
:
144 set_behavior_flag(ptr
, MEM_HASH_WITH_PREFIX_KEY
, data
);
146 case MEMCACHED_BEHAVIOR_NOREPLY
:
147 set_behavior_flag(ptr
, MEM_NOREPLY
, data
);
151 return MEMCACHED_SUCCESS
;
154 uint64_t memcached_behavior_get(memcached_st
*ptr
,
155 memcached_behavior flag
)
157 memcached_flags temp_flag
= 0;
161 case MEMCACHED_BEHAVIOR_IO_MSG_WATERMARK
:
162 return ptr
->io_msg_watermark
;
163 case MEMCACHED_BEHAVIOR_IO_BYTES_WATERMARK
:
164 return ptr
->io_bytes_watermark
;
165 case MEMCACHED_BEHAVIOR_BINARY_PROTOCOL
:
166 temp_flag
= MEM_BINARY_PROTOCOL
;
168 case MEMCACHED_BEHAVIOR_SUPPORT_CAS
:
169 temp_flag
= MEM_SUPPORT_CAS
;
171 case MEMCACHED_BEHAVIOR_CACHE_LOOKUPS
:
172 temp_flag
= MEM_USE_CACHE_LOOKUPS
;
174 case MEMCACHED_BEHAVIOR_NO_BLOCK
:
175 temp_flag
= MEM_NO_BLOCK
;
177 case MEMCACHED_BEHAVIOR_BUFFER_REQUESTS
:
178 temp_flag
= MEM_BUFFER_REQUESTS
;
180 case MEMCACHED_BEHAVIOR_USE_UDP
:
181 temp_flag
= MEM_USE_UDP
;
183 case MEMCACHED_BEHAVIOR_TCP_NODELAY
:
184 temp_flag
= MEM_TCP_NODELAY
;
186 case MEMCACHED_BEHAVIOR_VERIFY_KEY
:
187 temp_flag
= MEM_VERIFY_KEY
;
189 case MEMCACHED_BEHAVIOR_KETAMA_WEIGHTED
:
190 temp_flag
= MEM_KETAMA_WEIGHTED
;
192 case MEMCACHED_BEHAVIOR_DISTRIBUTION
:
193 return ptr
->distribution
;
194 case MEMCACHED_BEHAVIOR_KETAMA
:
195 return (ptr
->distribution
== MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA
) ? 1 : 0;
196 case MEMCACHED_BEHAVIOR_HASH
:
198 case MEMCACHED_BEHAVIOR_KETAMA_HASH
:
199 return ptr
->hash_continuum
;
200 case MEMCACHED_BEHAVIOR_SERVER_FAILURE_LIMIT
:
201 return ptr
->server_failure_limit
;
202 case MEMCACHED_BEHAVIOR_SORT_HOSTS
:
203 temp_flag
= MEM_USE_SORT_HOSTS
;
205 case MEMCACHED_BEHAVIOR_POLL_TIMEOUT
:
207 return (uint64_t)ptr
->poll_timeout
;
209 case MEMCACHED_BEHAVIOR_CONNECT_TIMEOUT
:
211 return (uint64_t)ptr
->connect_timeout
;
213 case MEMCACHED_BEHAVIOR_RETRY_TIMEOUT
:
215 return (uint64_t)ptr
->retry_timeout
;
217 case MEMCACHED_BEHAVIOR_SND_TIMEOUT
:
218 return (uint64_t)ptr
->snd_timeout
;
219 case MEMCACHED_BEHAVIOR_RCV_TIMEOUT
:
220 return (uint64_t)ptr
->rcv_timeout
;
221 case MEMCACHED_BEHAVIOR_SOCKET_SEND_SIZE
:
224 socklen_t sock_length
= sizeof(int);
227 /* We just try the first host, and if it is down we return zero */
228 if ((memcached_connect(&ptr
->hosts
[0])) != MEMCACHED_SUCCESS
)
231 if (getsockopt(ptr
->hosts
[0].fd
, SOL_SOCKET
,
232 SO_SNDBUF
, &sock_size
, &sock_length
))
233 return 0; /* Zero means error */
237 case MEMCACHED_BEHAVIOR_SOCKET_RECV_SIZE
:
240 socklen_t sock_length
= sizeof(int);
243 /* We just try the first host, and if it is down we return zero */
244 if ((memcached_connect(&ptr
->hosts
[0])) != MEMCACHED_SUCCESS
)
247 if (getsockopt(ptr
->hosts
[0].fd
, SOL_SOCKET
,
248 SO_RCVBUF
, &sock_size
, &sock_length
))
249 return 0; /* Zero means error */
253 case MEMCACHED_BEHAVIOR_USER_DATA
:
254 return MEMCACHED_FAILURE
;
255 case MEMCACHED_BEHAVIOR_HASH_WITH_PREFIX_KEY
:
256 temp_flag
= MEM_HASH_WITH_PREFIX_KEY
;
258 case MEMCACHED_BEHAVIOR_NOREPLY
:
259 temp_flag
= MEM_NOREPLY
;
263 WATCHPOINT_ASSERT(temp_flag
); /* Programming mistake if it gets this far */
264 if (ptr
->flags
& temp_flag
)