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
);
54 case MEMCACHED_BEHAVIOR_BUFFER_REQUESTS
:
55 set_behavior_flag(ptr
, MEM_BUFFER_REQUESTS
, data
);
58 case MEMCACHED_BEHAVIOR_USE_UDP
:
59 if (ptr
->number_of_hosts
)
60 return MEMCACHED_FAILURE
;
61 set_behavior_flag(ptr
, MEM_USE_UDP
, data
);
63 set_behavior_flag(ptr
,MEM_NOREPLY
,data
);
65 case MEMCACHED_BEHAVIOR_TCP_NODELAY
:
66 set_behavior_flag(ptr
, MEM_TCP_NODELAY
, data
);
69 case MEMCACHED_BEHAVIOR_DISTRIBUTION
:
71 ptr
->distribution
= (memcached_server_distribution
)(data
);
72 if (ptr
->distribution
== MEMCACHED_DISTRIBUTION_RANDOM
)
76 run_distribution(ptr
);
79 case MEMCACHED_BEHAVIOR_KETAMA
:
83 ptr
->hash
= MEMCACHED_HASH_MD5
;
84 ptr
->distribution
= MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA
;
91 run_distribution(ptr
);
94 case MEMCACHED_BEHAVIOR_KETAMA_WEIGHTED
:
96 ptr
->hash
= MEMCACHED_HASH_MD5
;
97 ptr
->distribution
= MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA
;
98 set_behavior_flag(ptr
, MEM_KETAMA_WEIGHTED
, data
);
99 run_distribution(ptr
);
102 case MEMCACHED_BEHAVIOR_HASH
:
103 ptr
->hash
= (memcached_hash
)(data
);
105 case MEMCACHED_BEHAVIOR_KETAMA_HASH
:
106 ptr
->hash_continuum
= (memcached_hash
)(data
);
107 run_distribution(ptr
);
109 case MEMCACHED_BEHAVIOR_CACHE_LOOKUPS
:
110 set_behavior_flag(ptr
, MEM_USE_CACHE_LOOKUPS
, data
);
113 case MEMCACHED_BEHAVIOR_VERIFY_KEY
:
114 if (ptr
->flags
& MEM_BINARY_PROTOCOL
)
116 set_behavior_flag(ptr
, MEM_VERIFY_KEY
, data
);
118 case MEMCACHED_BEHAVIOR_SORT_HOSTS
:
120 set_behavior_flag(ptr
, MEM_USE_SORT_HOSTS
, data
);
121 run_distribution(ptr
);
125 case MEMCACHED_BEHAVIOR_POLL_TIMEOUT
:
126 ptr
->poll_timeout
= (int32_t)data
;
128 case MEMCACHED_BEHAVIOR_CONNECT_TIMEOUT
:
129 ptr
->connect_timeout
= (int32_t)data
;
131 case MEMCACHED_BEHAVIOR_RETRY_TIMEOUT
:
132 ptr
->retry_timeout
= (int32_t)data
;
134 case MEMCACHED_BEHAVIOR_SOCKET_SEND_SIZE
:
135 ptr
->send_size
= (int32_t)data
;
138 case MEMCACHED_BEHAVIOR_SOCKET_RECV_SIZE
:
139 ptr
->recv_size
= (int32_t)data
;
142 case MEMCACHED_BEHAVIOR_USER_DATA
:
143 return MEMCACHED_FAILURE
;
144 case MEMCACHED_BEHAVIOR_HASH_WITH_PREFIX_KEY
:
145 set_behavior_flag(ptr
, MEM_HASH_WITH_PREFIX_KEY
, data
);
147 case MEMCACHED_BEHAVIOR_NOREPLY
:
148 set_behavior_flag(ptr
, MEM_NOREPLY
, data
);
152 return MEMCACHED_SUCCESS
;
155 uint64_t memcached_behavior_get(memcached_st
*ptr
,
156 memcached_behavior flag
)
158 memcached_flags temp_flag
= 0;
162 case MEMCACHED_BEHAVIOR_IO_MSG_WATERMARK
:
163 return ptr
->io_msg_watermark
;
164 case MEMCACHED_BEHAVIOR_IO_BYTES_WATERMARK
:
165 return ptr
->io_bytes_watermark
;
166 case MEMCACHED_BEHAVIOR_BINARY_PROTOCOL
:
167 temp_flag
= MEM_BINARY_PROTOCOL
;
169 case MEMCACHED_BEHAVIOR_SUPPORT_CAS
:
170 temp_flag
= MEM_SUPPORT_CAS
;
172 case MEMCACHED_BEHAVIOR_CACHE_LOOKUPS
:
173 temp_flag
= MEM_USE_CACHE_LOOKUPS
;
175 case MEMCACHED_BEHAVIOR_NO_BLOCK
:
176 temp_flag
= MEM_NO_BLOCK
;
178 case MEMCACHED_BEHAVIOR_BUFFER_REQUESTS
:
179 temp_flag
= MEM_BUFFER_REQUESTS
;
181 case MEMCACHED_BEHAVIOR_USE_UDP
:
182 temp_flag
= MEM_USE_UDP
;
184 case MEMCACHED_BEHAVIOR_TCP_NODELAY
:
185 temp_flag
= MEM_TCP_NODELAY
;
187 case MEMCACHED_BEHAVIOR_VERIFY_KEY
:
188 temp_flag
= MEM_VERIFY_KEY
;
190 case MEMCACHED_BEHAVIOR_KETAMA_WEIGHTED
:
191 temp_flag
= MEM_KETAMA_WEIGHTED
;
193 case MEMCACHED_BEHAVIOR_DISTRIBUTION
:
194 return ptr
->distribution
;
195 case MEMCACHED_BEHAVIOR_KETAMA
:
196 return (ptr
->distribution
== MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA
) ? 1 : 0;
197 case MEMCACHED_BEHAVIOR_HASH
:
199 case MEMCACHED_BEHAVIOR_KETAMA_HASH
:
200 return ptr
->hash_continuum
;
201 case MEMCACHED_BEHAVIOR_SERVER_FAILURE_LIMIT
:
202 return ptr
->server_failure_limit
;
203 case MEMCACHED_BEHAVIOR_SORT_HOSTS
:
204 temp_flag
= MEM_USE_SORT_HOSTS
;
206 case MEMCACHED_BEHAVIOR_POLL_TIMEOUT
:
208 return (uint64_t)ptr
->poll_timeout
;
210 case MEMCACHED_BEHAVIOR_CONNECT_TIMEOUT
:
212 return (uint64_t)ptr
->connect_timeout
;
214 case MEMCACHED_BEHAVIOR_RETRY_TIMEOUT
:
216 return (uint64_t)ptr
->retry_timeout
;
218 case MEMCACHED_BEHAVIOR_SND_TIMEOUT
:
219 return (uint64_t)ptr
->snd_timeout
;
220 case MEMCACHED_BEHAVIOR_RCV_TIMEOUT
:
221 return (uint64_t)ptr
->rcv_timeout
;
222 case MEMCACHED_BEHAVIOR_SOCKET_SEND_SIZE
:
225 socklen_t sock_length
= sizeof(int);
228 /* We just try the first host, and if it is down we return zero */
229 if ((memcached_connect(&ptr
->hosts
[0])) != MEMCACHED_SUCCESS
)
232 if (getsockopt(ptr
->hosts
[0].fd
, SOL_SOCKET
,
233 SO_SNDBUF
, &sock_size
, &sock_length
))
234 return 0; /* Zero means error */
238 case MEMCACHED_BEHAVIOR_SOCKET_RECV_SIZE
:
241 socklen_t sock_length
= sizeof(int);
244 /* We just try the first host, and if it is down we return zero */
245 if ((memcached_connect(&ptr
->hosts
[0])) != MEMCACHED_SUCCESS
)
248 if (getsockopt(ptr
->hosts
[0].fd
, SOL_SOCKET
,
249 SO_RCVBUF
, &sock_size
, &sock_length
))
250 return 0; /* Zero means error */
254 case MEMCACHED_BEHAVIOR_USER_DATA
:
255 return MEMCACHED_FAILURE
;
256 case MEMCACHED_BEHAVIOR_HASH_WITH_PREFIX_KEY
:
257 temp_flag
= MEM_HASH_WITH_PREFIX_KEY
;
259 case MEMCACHED_BEHAVIOR_NOREPLY
:
260 temp_flag
= MEM_NOREPLY
;
264 WATCHPOINT_ASSERT(temp_flag
); /* Programming mistake if it gets this far */
265 if (ptr
->flags
& temp_flag
)