memcached_return memcached_server_add(memcached_st *ptr, char *hostname, unsigned int port)
{
- memcached_host_st *host_ptr, *prev_ptr;
+ memcached_server_st *new_host_list;
+ char *new_hostname;
if (!port)
port= MEMCACHED_DEFAULT_PORT;
if (!hostname)
hostname= "localhost";
- if (ptr->hosts)
- {
- for (host_ptr= ptr->hosts; host_ptr; host_ptr= host_ptr->next)
- prev_ptr= host_ptr;
- host_ptr= (memcached_host_st *)malloc(sizeof(memcached_host_st));
- if (!host_ptr)
- return MEMCACHED_MEMORY_ALLOCATION_FAILURE;
- prev_ptr->next= host_ptr;
- }
- else
- {
- ptr->hosts=
- host_ptr= (memcached_host_st *)malloc(sizeof(memcached_host_st));
- if (!host_ptr)
- return MEMCACHED_MEMORY_ALLOCATION_FAILURE;
- }
- memset(host_ptr, 0, sizeof(memcached_host_st));
- host_ptr->hostname= (char *)malloc(sizeof(char) * strlen(hostname));
+ new_host_list= (memcached_server_st *)realloc(ptr->hosts, sizeof(memcached_server_st) * (ptr->number_of_hosts+1));
+ if (!new_host_list)
+ return MEMCACHED_MEMORY_ALLOCATION_FAILURE;
+ memset(&new_host_list[ptr->number_of_hosts], 0, sizeof(memcached_server_st));
+
+ if (!new_host_list)
+ return MEMCACHED_MEMORY_ALLOCATION_FAILURE;
+
+ ptr->hosts= new_host_list;
- if (!host_ptr->hostname)
- {
- free(host_ptr);
+ new_hostname=
+ (char *)malloc(sizeof(char) * (strlen(hostname)+1));
+ if (!new_hostname)
return MEMCACHED_MEMORY_ALLOCATION_FAILURE;
- }
- memcpy(host_ptr->hostname, hostname, strlen(hostname));
- host_ptr->port= port;
+
+ memset(new_hostname, 0, strlen(hostname)+1);
+ memcpy(new_hostname, hostname, strlen(hostname));
+ ptr->hosts[ptr->number_of_hosts].hostname= new_hostname;
+ ptr->hosts[ptr->number_of_hosts].port= port;
+ ptr->hosts[ptr->number_of_hosts].fd= -1;
+ ptr->number_of_hosts++;
return MEMCACHED_SUCCESS;
}
memcached_return memcached_connect(memcached_st *ptr)
{
+ unsigned int x;
struct sockaddr_in localAddr, servAddr;
struct hostent *h;
- memcached_host_st *host_ptr;
- if (ptr->connected)
+ if (ptr->connected == ptr->number_of_hosts)
return MEMCACHED_SUCCESS;
if (!ptr->hosts)
{
- memcached_return rc;
- rc= memcached_server_add(ptr, NULL, 0);
-
- if (rc != MEMCACHED_SUCCESS)
- return rc;
+ return MEMCACHED_NO_SERVERS;
}
-
- for (host_ptr= ptr->hosts; host_ptr; host_ptr= host_ptr->next)
+ for (x= 0; x < ptr->number_of_hosts; x++)
{
- if ((h= gethostbyname(host_ptr->hostname)) == NULL)
+ if (ptr->hosts[x].fd == -1)
{
- fprintf(stderr, "unknown host '%s'\n", host_ptr->hostname);
- return MEMCACHED_HOST_LOCKUP_FAILURE;
- }
+ if ((h= gethostbyname(ptr->hosts[x].hostname)) == NULL)
+ return MEMCACHED_HOST_LOCKUP_FAILURE;
- 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(host_ptr->port);
+ 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[x].port);
- /* Create the socket */
- if ((ptr->fd= socket(AF_INET, SOCK_STREAM, 0)) < 0)
- {
- fprintf(stderr, "cannot open socket");
- return MEMCACHED_CONNECTION_SOCKET_CREATE_FAILURE;
- }
+ /* Create the socket */
+ if ((ptr->hosts[0].fd= socket(AF_INET, SOCK_STREAM, 0)) < 0)
+ 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);
+ /* bind any port number */
+ localAddr.sin_family = AF_INET;
+ localAddr.sin_addr.s_addr = htonl(INADDR_ANY);
+ localAddr.sin_port = htons(0);
- if (bind(ptr->fd, (struct sockaddr *) &localAddr, sizeof(localAddr)) < 0)
- {
- fprintf(stderr, "cannot bind port TCP %u\n", host_ptr->port);
- return(MEMCACHED_CONNECTION_BIND_FAILURE);
- }
+ if (bind(ptr->hosts[0].fd, (struct sockaddr *) &localAddr, sizeof(localAddr)) < 0)
+ return(MEMCACHED_CONNECTION_BIND_FAILURE);
- /* connect to server */
- if (connect(ptr->fd, (struct sockaddr *) &servAddr, sizeof(servAddr)) < 0)
- {
- fprintf(stderr, "cannot connect to host '%s' (%u) (error: %s)\n", host_ptr->hostname,
- host_ptr->port,
- strerror(errno));
- return MEMCACHED_HOST_LOCKUP_FAILURE;
+ /* connect to server */
+ if (connect(ptr->hosts[0].fd, (struct sockaddr *) &servAddr, sizeof(servAddr)) < 0)
+ return MEMCACHED_HOST_LOCKUP_FAILURE;
+
+ ptr->connected++;
}
}
- ptr->connected= 1;
-
return MEMCACHED_SUCCESS;
}