emit messages to stderr when write fails
[awesomized/libmemcached] / lib / memcached_flush.c
1 #include <memcached.h>
2
3 memcached_return memcached_flush(memcached_st *ptr, time_t expiration)
4 {
5 unsigned int x;
6 size_t send_length, sent_length;
7 memcached_return rc;
8 char buffer[MEMCACHED_DEFAULT_COMMAND_SIZE];
9
10 rc= memcached_connect(ptr);
11
12 if (rc != MEMCACHED_SUCCESS)
13 rc= MEMCACHED_SOME_ERRORS;
14
15 for (x= 0; x < ptr->number_of_hosts; x++)
16 {
17 if (expiration)
18 send_length= snprintf(buffer, MEMCACHED_DEFAULT_COMMAND_SIZE,
19 "flush_all %llu\r\n", (unsigned long long)expiration);
20 else
21 send_length= snprintf(buffer, MEMCACHED_DEFAULT_COMMAND_SIZE,
22 "flush_all\r\n");
23
24 if (send_length >= MEMCACHED_DEFAULT_COMMAND_SIZE)
25 return MEMCACHED_WRITE_FAILURE;
26
27 sent_length= write(ptr->hosts[x].fd, buffer, send_length);
28
29 if (sent_length == -1)
30 {
31 fprintf(stderr, "error %s: write: %m\n", __FUNCTION__);
32 return MEMCACHED_WRITE_FAILURE;
33 }
34
35 if (sent_length != send_length)
36 {
37 fprintf(stderr, "error %s: short write %d %d: %m\n",
38 __FUNCTION__, sent_length, send_length);
39 return MEMCACHED_WRITE_FAILURE;
40 }
41
42 rc= memcached_response(ptr, buffer, MEMCACHED_DEFAULT_COMMAND_SIZE, x);
43
44 if (rc != MEMCACHED_SUCCESS)
45 rc= MEMCACHED_SOME_ERRORS;
46 }
47
48 return rc;
49 }