#include "common.h"
-#include <fcntl.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/tcp.h>
-#include <netdb.h>
+static memcached_return set_hostinfo(memcached_server_st *server)
+{
+ struct addrinfo *ai;
+ struct addrinfo hints;
+ int e;
+ char str_port[NI_MAXSERV];
+
+ sprintf(str_port, "%u", server->port);
+
+ memset(&hints, 0, sizeof(hints));
+
+ hints.ai_family= AF_INET;
+ if (server->type == MEMCACHED_CONNECTION_UDP)
+ {
+ hints.ai_protocol= IPPROTO_UDP;
+ hints.ai_socktype= SOCK_DGRAM;
+ }
+ else
+ {
+ hints.ai_socktype= SOCK_STREAM;
+ hints.ai_protocol= IPPROTO_TCP;
+ }
-memcached_return memcached_real_connect(memcached_st *ptr, unsigned int server_key)
+ e= getaddrinfo(server->hostname, str_port, &hints, &ai);
+ if (e != 0)
+ {
+ WATCHPOINT_STRING(server->hostname);
+ WATCHPOINT_STRING(gai_strerror(e));
+ return MEMCACHED_HOST_LOOKUP_FAILURE;
+ }
+
+ if (server->address_info)
+ freeaddrinfo(server->address_info);
+ server->address_info= ai;
+
+ return MEMCACHED_SUCCESS;
+}
+
+static memcached_return unix_socket_connect(memcached_server_st *ptr)
{
- struct sockaddr_in localAddr, servAddr;
- struct hostent *h;
+ struct sockaddr_un servAddr;
+ socklen_t addrlen;
- if (ptr->hosts[server_key].fd == -1)
+ if (ptr->fd == -1)
{
- /* Old connection junk still is in the structure */
- assert(ptr->hosts[server_key].stack_responses == 0);
+ if ((ptr->fd= socket(AF_UNIX, SOCK_STREAM, 0)) < 0)
+ {
+ ptr->cached_errno= errno;
+ return MEMCACHED_CONNECTION_SOCKET_CREATE_FAILURE;
+ }
+
+ memset(&servAddr, 0, sizeof (struct sockaddr_un));
+ servAddr.sun_family= AF_UNIX;
+ strcpy(servAddr.sun_path, ptr->hostname); /* Copy filename */
- if ((h= gethostbyname(ptr->hosts[server_key].hostname)) == NULL)
+ addrlen= strlen(servAddr.sun_path) + sizeof(servAddr.sun_family);
+
+test_connect:
+ if (connect(ptr->fd,
+ (struct sockaddr *)&servAddr,
+ sizeof(servAddr)) < 0)
{
- ptr->my_errno= h_errno;
- return MEMCACHED_HOST_LOCKUP_FAILURE;
+ switch (errno) {
+ /* We are spinning waiting on connect */
+ case EALREADY:
+ case EINPROGRESS:
+ case EINTR:
+ goto test_connect;
+ case EISCONN: /* We were spinning waiting on connect */
+ break;
+ default:
+ WATCHPOINT_ERRNO(errno);
+ ptr->cached_errno= errno;
+ return MEMCACHED_ERRNO;
+ }
}
+ }
+ return MEMCACHED_SUCCESS;
+}
+
+static memcached_return network_connect(memcached_server_st *ptr)
+{
+ if (ptr->fd == -1)
+ {
+ struct addrinfo *use;
+
+ /* Old connection junk still is in the structure */
+ WATCHPOINT_ASSERT(ptr->cursor_active == 0);
+
+ if (ptr->sockaddr_inited == MEMCACHED_NOT_ALLOCATED ||
+ (!(ptr->root->flags & MEM_USE_CACHE_LOOKUPS)))
+ {
+ memcached_return rc;
- servAddr.sin_family= h->h_addrtype;
- memcpy((char *) &servAddr.sin_addr.s_addr, h->h_addr_list[0], h->h_length);
- servAddr.sin_port = htons(ptr->hosts[server_key].port);
+ rc= set_hostinfo(ptr);
+ if (rc != MEMCACHED_SUCCESS)
+ return rc;
+ ptr->sockaddr_inited= MEMCACHED_ALLOCATED;
+ }
+ use= ptr->address_info;
/* Create the socket */
- if ((ptr->hosts[server_key].fd= socket(AF_INET, SOCK_STREAM, 0)) < 0)
+ if ((ptr->fd= socket(use->ai_family,
+ use->ai_socktype,
+ use->ai_protocol)) < 0)
{
- ptr->my_errno= errno;
+ ptr->cached_errno= errno;
+ WATCHPOINT_ERRNO(errno);
return MEMCACHED_CONNECTION_SOCKET_CREATE_FAILURE;
}
- /* bind any port number */
- localAddr.sin_family = AF_INET;
- localAddr.sin_addr.s_addr = htonl(INADDR_ANY);
- localAddr.sin_port = htons(0);
+ if (ptr->type == MEMCACHED_CONNECTION_UDP)
+ return MEMCACHED_SUCCESS;
- /* For the moment, not getting a nonblocking mode will note be fatal */
- if (ptr->flags & MEM_NO_BLOCK)
+ if (ptr->root->flags & MEM_NO_BLOCK)
{
- int flags;
-
- flags= fcntl(ptr->hosts[server_key].fd, F_GETFL, 0);
- if (flags != -1)
- (void)fcntl(ptr->hosts[server_key].fd, F_SETFL, flags | O_NONBLOCK);
+ int error;
+ struct linger linger;
+ struct timeval waittime;
+
+ waittime.tv_sec= 10;
+ waittime.tv_usec= 0;
+
+ linger.l_onoff= 1;
+ linger.l_linger= MEMCACHED_DEFAULT_TIMEOUT;
+ error= setsockopt(ptr->fd, SOL_SOCKET, SO_LINGER,
+ &linger, (socklen_t)sizeof(struct linger));
+ WATCHPOINT_ASSERT(error == 0);
+
+ error= setsockopt(ptr->fd, SOL_SOCKET, SO_SNDTIMEO,
+ &waittime, (socklen_t)sizeof(struct timeval));
+ WATCHPOINT_ASSERT(error == 0);
+
+ error= setsockopt(ptr->fd, SOL_SOCKET, SO_RCVTIMEO,
+ &waittime, (socklen_t)sizeof(struct timeval));
+ WATCHPOINT_ASSERT(error == 0);
}
- if (ptr->flags & MEM_TCP_NODELAY)
+ if (ptr->root->flags & MEM_TCP_NODELAY)
{
int flag= 1;
+ int error;
+
+ error= setsockopt(ptr->fd, IPPROTO_TCP, TCP_NODELAY,
+ &flag, (socklen_t)sizeof(int));
+ WATCHPOINT_ASSERT(error == 0);
+ }
+
+ if (ptr->root->send_size)
+ {
+ int error;
- setsockopt(ptr->hosts[server_key].fd, IPPROTO_TCP, TCP_NODELAY,
- &flag, (socklen_t)sizeof(int));
+ error= setsockopt(ptr->fd, SOL_SOCKET, SO_SNDBUF,
+ &ptr->root->send_size, (socklen_t)sizeof(int));
+ WATCHPOINT_ASSERT(error == 0);
}
- if (ptr->send_size)
+ if (ptr->root->recv_size)
{
- setsockopt(ptr->hosts[server_key].fd, SOL_SOCKET, SO_SNDBUF,
- &ptr->send_size, (socklen_t)sizeof(int));
+ int error;
+
+ error= setsockopt(ptr->fd, SOL_SOCKET, SO_SNDBUF,
+ &ptr->root->recv_size, (socklen_t)sizeof(int));
+ WATCHPOINT_ASSERT(error == 0);
}
- if (ptr->recv_size)
+ /* For the moment, not getting a nonblocking mode will not be fatal */
+ if (ptr->root->flags & MEM_NO_BLOCK)
{
- setsockopt(ptr->hosts[server_key].fd, SOL_SOCKET, SO_SNDBUF,
- &ptr->recv_size, (socklen_t)sizeof(int));
+ int flags;
+
+ flags= fcntl(ptr->fd, F_GETFL, 0);
+ if (flags != -1)
+ {
+ (void)fcntl(ptr->fd, F_SETFL, flags | O_NONBLOCK);
+ }
}
+
/* connect to server */
test_connect:
- if (connect(ptr->hosts[server_key].fd, (struct sockaddr *) &servAddr, sizeof(servAddr)) < 0)
+ if (connect(ptr->fd,
+ use->ai_addr,
+ use->ai_addrlen) < 0)
{
switch (errno) {
/* We are spinning waiting on connect */
case EISCONN: /* We were spinning waiting on connect */
break;
default:
- ptr->my_errno= errno;
+ ptr->cached_errno= errno;
+ WATCHPOINT_ERRNO(ptr->cached_errno);
+ close(ptr->fd);
+ ptr->fd= -1;
return MEMCACHED_ERRNO;
}
- ptr->connected++;
}
- assert(ptr->hosts[server_key].stack_responses == 0);
+
+ WATCHPOINT_ASSERT(ptr->cursor_active == 0);
}
return MEMCACHED_SUCCESS;
}
-memcached_return memcached_connect(memcached_st *ptr, unsigned int server_key)
+memcached_return memcached_connect(memcached_server_st *ptr)
{
- memcached_return rc;
+ memcached_return rc= MEMCACHED_NO_SERVERS;
LIBMEMCACHED_MEMCACHED_CONNECT_START();
- if (ptr->connected == ptr->number_of_hosts)
- return MEMCACHED_SUCCESS;
-
- if (!ptr->hosts)
- return MEMCACHED_NO_SERVERS;
-
/* We need to clean up the multi startup piece */
- if (server_key)
- rc= memcached_real_connect(ptr, server_key);
- else
+ switch (ptr->type)
{
- unsigned int x;
-
- for (x= 0; x < ptr->number_of_hosts; x++)
- rc= memcached_real_connect(ptr, x);
+ case MEMCACHED_CONNECTION_UNKNOWN:
+ WATCHPOINT_ASSERT(0);
+ rc= MEMCACHED_NOT_SUPPORTED;
+ break;
+ case MEMCACHED_CONNECTION_UDP:
+ case MEMCACHED_CONNECTION_TCP:
+ rc= network_connect(ptr);
+ break;
+ case MEMCACHED_CONNECTION_UNIX_SOCKET:
+ rc= unix_socket_connect(ptr);
+ break;
+ default:
+ WATCHPOINT_ASSERT(0);
}
+
+ if (rc != MEMCACHED_SUCCESS)
+ WATCHPOINT_ERROR(rc);
+
LIBMEMCACHED_MEMCACHED_CONNECT_END();
return rc;
projects / awesomized / libmemcached / blobdiff