# define TCP_KEEPIDLE 0
#endif
-static memcached_return_t connect_poll(org::libmemcached::Instance* server)
+static memcached_return_t connect_poll(memcached_instance_st* server, const int connection_error)
{
struct pollfd fds[1];
fds[0].fd= server->fd;
if (server->root->poll_timeout == 0)
{
- return memcached_set_error(*server, MEMCACHED_TIMEOUT, MEMCACHED_AT);
+ return memcached_set_error(*server, MEMCACHED_TIMEOUT, MEMCACHED_AT,
+ memcached_literal_param("The time to wait for a connection to be established was set to zero which produces a timeout to every call to poll()."));
}
while (--loop_max) // Should only loop on cases of ERESTART or EINTR
{
int number_of;
- if ((number_of= poll(fds, 1, server->root->connect_timeout)) <= 0)
+ if ((number_of= poll(fds, 1, server->root->connect_timeout)) == -1)
{
- if (number_of == -1)
+ int local_errno= get_socket_errno(); // We cache in case closesocket() modifies errno
+ switch (local_errno)
{
- int local_errno= get_socket_errno(); // We cache in case closesocket() modifies errno
- switch (local_errno)
- {
-#ifdef TARGET_OS_LINUX
- case ERESTART:
+#ifdef __linux__
+ case ERESTART:
#endif
- case EINTR:
- continue;
+ case EINTR:
+ continue;
- case EFAULT:
- case ENOMEM:
- return memcached_set_error(*server, MEMCACHED_MEMORY_ALLOCATION_FAILURE, MEMCACHED_AT);
-
- case EINVAL:
- return memcached_set_error(*server, MEMCACHED_MEMORY_ALLOCATION_FAILURE, MEMCACHED_AT, memcached_literal_param("RLIMIT_NOFILE exceeded, or if OSX the timeout value was invalid"));
-
- default: // This should not happen
- if (fds[0].revents & POLLERR)
- {
- int err;
- socklen_t len= sizeof(err);
- if (getsockopt(server->fd, SOL_SOCKET, SO_ERROR, (char*)&err, &len) == 0)
- {
- if (err == 0)
- {
- // This should never happen, if it does? Punt.
- continue;
- }
- local_errno= err;
- }
- }
-
- assert_msg(server->fd != INVALID_SOCKET, "poll() was passed an invalid file descriptor");
- server->reset_socket();
- server->state= MEMCACHED_SERVER_STATE_NEW;
+ case EFAULT:
+ case ENOMEM:
+ return memcached_set_error(*server, MEMCACHED_MEMORY_ALLOCATION_FAILURE, MEMCACHED_AT);
+
+ case EINVAL:
+ return memcached_set_error(*server, MEMCACHED_MEMORY_ALLOCATION_FAILURE, MEMCACHED_AT,
+ memcached_literal_param("RLIMIT_NOFILE exceeded, or if OSX the timeout value was invalid"));
+
+ default: // This should not happen
+ break;
+ }
+
+ assert_msg(server->fd != INVALID_SOCKET, "poll() was passed an invalid file descriptor");
+ server->reset_socket();
+ server->state= MEMCACHED_SERVER_STATE_NEW;
- return memcached_set_errno(*server, local_errno, MEMCACHED_AT);
+ return memcached_set_errno(*server, local_errno, MEMCACHED_AT);
+ }
+
+ if (number_of == 0)
+ {
+ if (connection_error == EINPROGRESS)
+ {
+ int err;
+ socklen_t len= sizeof(err);
+ if (getsockopt(server->fd, SOL_SOCKET, SO_ERROR, (char*)&err, &len) == -1)
+ {
+ return memcached_set_errno(*server, errno, MEMCACHED_AT, memcached_literal_param("getsockopt() error'ed while looking for error connect_poll(EINPROGRESS)"));
+ }
+
+ // If Zero, my hero, we just fail to a generic MEMCACHED_TIMEOUT error
+ if (err != 0)
+ {
+ return memcached_set_errno(*server, err, MEMCACHED_AT, memcached_literal_param("getsockopt() found the error from poll() after connect() returned EINPROGRESS."));
}
}
- assert(number_of == 0);
- server->io_wait_count.timeouts++;
- return memcached_set_error(*server, MEMCACHED_TIMEOUT, MEMCACHED_AT);
+ return memcached_set_error(*server, MEMCACHED_TIMEOUT, MEMCACHED_AT, memcached_literal_param("(number_of == 0)"));
}
-#if 0
- server->revents(fds[0].revents);
-#endif
+ assert (number_of == 1);
if (fds[0].revents & POLLERR or
fds[0].revents & POLLHUP or
{
int err;
socklen_t len= sizeof (err);
- if (getsockopt(fds[0].fd, SOL_SOCKET, SO_ERROR, (char*)&err, &len) == 0)
+ if (getsockopt(fds[0].fd, SOL_SOCKET, SO_ERROR, (char*)&err, &len) == -1)
{
- // We check the value to see what happened wth the socket.
- if (err == 0)
- {
- return MEMCACHED_SUCCESS;
- }
- errno= err;
+ return memcached_set_errno(*server, errno, MEMCACHED_AT, memcached_literal_param("getsockopt() errored while looking up error state from poll()"));
+ }
+
+ // We check the value to see what happened wth the socket.
+ if (err == 0) // Should not happen
+ {
+ return MEMCACHED_SUCCESS;
}
+ errno= err;
- return memcached_set_errno(*server, err, MEMCACHED_AT);
+ return memcached_set_errno(*server, err, MEMCACHED_AT, memcached_literal_param("getsockopt() found the error from poll() during connect."));
}
- assert(fds[0].revents & POLLIN or fds[0].revents & POLLOUT);
+ assert(fds[0].revents & POLLOUT);
- return MEMCACHED_SUCCESS;
+ if (fds[0].revents & POLLOUT and connection_error == EINPROGRESS)
+ {
+ int err;
+ socklen_t len= sizeof(err);
+ if (getsockopt(server->fd, SOL_SOCKET, SO_ERROR, (char*)&err, &len) == -1)
+ {
+ return memcached_set_errno(*server, errno, MEMCACHED_AT);
+ }
+
+ if (err == 0)
+ {
+ return MEMCACHED_SUCCESS;
+ }
+
+ return memcached_set_errno(*server, err, MEMCACHED_AT, memcached_literal_param("getsockopt() found the error from poll() after connect() returned EINPROGRESS."));
+ }
+
+ break; // We only have the loop setup for errno types that require restart
}
// This should only be possible from ERESTART or EINTR;
- return memcached_set_errno(*server, get_socket_errno(), MEMCACHED_AT);
+ return memcached_set_errno(*server, connection_error, MEMCACHED_AT, memcached_literal_param("connect_poll() was exhausted"));
}
-static memcached_return_t set_hostinfo(org::libmemcached::Instance* server)
+static memcached_return_t set_hostinfo(memcached_instance_st* server)
{
assert(server->type != MEMCACHED_CONNECTION_UNIX_SOCKET);
server->clear_addrinfo();
- char str_port[MEMCACHED_NI_MAXSERV];
+ char str_port[MEMCACHED_NI_MAXSERV]= { 0 };
+ errno= 0;
int length= snprintf(str_port, MEMCACHED_NI_MAXSERV, "%u", uint32_t(server->port()));
- if (length >= MEMCACHED_NI_MAXSERV or length <= 0)
+ if (length >= MEMCACHED_NI_MAXSERV or length <= 0 or errno != 0)
{
return memcached_set_error(*server, MEMCACHED_MEMORY_ALLOCATION_FAILURE, MEMCACHED_AT,
memcached_literal_param("snprintf(NI_MAXSERV)"));
struct addrinfo hints;
memset(&hints, 0, sizeof(struct addrinfo));
- hints.ai_family= AF_INET;
+ hints.ai_family= AF_UNSPEC;
if (memcached_is_udp(server->root))
{
hints.ai_protocol= IPPROTO_UDP;
return MEMCACHED_SUCCESS;
}
-static inline void set_socket_nonblocking(org::libmemcached::Instance* server)
+static inline void set_socket_nonblocking(memcached_instance_st* server)
{
-#ifdef WIN32
+#if defined(_WIN32)
u_long arg= 1;
if (ioctlsocket(server->fd, FIONBIO, &arg) == SOCKET_ERROR)
{
#endif
}
-static bool set_socket_options(org::libmemcached::Instance* server)
+static bool set_socket_options(memcached_instance_st* server)
{
assert_msg(server->fd != INVALID_SOCKET, "invalid socket was passed to set_socket_options()");
// If SOCK_CLOEXEC exists then we don't need to call the following
if (SOCK_CLOEXEC == 0)
{
- if (FD_CLOEXEC)
+ if (FD_CLOEXEC != 0)
{
int flags;
do
#if defined(_WIN32)
#else
-#if defined(SO_NOSIGPIPE)
+# if defined(SO_NOSIGPIPE)
if (SO_NOSIGPIPE)
{
int set= 1;
#endif
}
}
-#endif // SO_NOSIGPIPE
+# endif // SO_NOSIGPIPE
#endif // _WIN32
if (server->root->flags.no_block)
return true;
}
-static memcached_return_t unix_socket_connect(org::libmemcached::Instance* server)
+static memcached_return_t unix_socket_connect(memcached_instance_st* server)
{
-#ifndef WIN32
+#ifndef _WIN32
WATCHPOINT_ASSERT(server->fd == INVALID_SOCKET);
do {
int type= SOCK_STREAM;
- if (SOCK_CLOEXEC)
+ if (SOCK_CLOEXEC != 0)
{
type|= SOCK_CLOEXEC;
}
- if (SOCK_NONBLOCK)
+ if (SOCK_NONBLOCK != 0)
{
type|= SOCK_NONBLOCK;
}
memset(&servAddr, 0, sizeof (struct sockaddr_un));
servAddr.sun_family= AF_UNIX;
- strncpy(servAddr.sun_path, server->hostname(), sizeof(servAddr.sun_path)); /* Copy filename */
+ if (strlen(server->hostname()) >= sizeof(servAddr.sun_path)) {
+ return memcached_set_error(*server, MEMCACHED_UNIX_SOCKET_PATH_TOO_BIG, MEMCACHED_AT);
+ }
+ strncpy(servAddr.sun_path, server->hostname(), sizeof(servAddr.sun_path)-1); /* Copy filename */
if (connect(server->fd, (struct sockaddr *)&servAddr, sizeof(servAddr)) == -1)
{
#endif
}
-static memcached_return_t network_connect(org::libmemcached::Instance* server)
+static memcached_return_t network_connect(memcached_instance_st* server)
{
bool timeout_error_occured= false;
/* Create the socket */
while (server->address_info_next and server->fd == INVALID_SOCKET)
{
- /* Memcache server does not support IPV6 in udp mode, so skip if not ipv4 */
- if (memcached_is_udp(server->root) and server->address_info_next->ai_family != AF_INET)
- {
- server->address_info_next= server->address_info_next->ai_next;
- continue;
- }
-
int type= server->address_info_next->ai_socktype;
- if (SOCK_CLOEXEC)
+ if (SOCK_CLOEXEC != 0)
{
type|= SOCK_CLOEXEC;
}
- if (SOCK_NONBLOCK)
+ if (SOCK_NONBLOCK != 0)
{
type|= SOCK_NONBLOCK;
}
}
/* An error occurred */
- switch (get_socket_errno())
+ int local_error= get_socket_errno();
+ switch (local_error)
{
case ETIMEDOUT:
timeout_error_occured= true;
{
server->events(POLLOUT);
server->state= MEMCACHED_SERVER_STATE_IN_PROGRESS;
- memcached_return_t rc= connect_poll(server);
+ memcached_return_t rc= connect_poll(server, local_error);
if (memcached_success(rc))
{
if (timeout_error_occured and server->state < MEMCACHED_SERVER_STATE_IN_PROGRESS)
{
- return memcached_set_error(*server, MEMCACHED_TIMEOUT, MEMCACHED_AT);
+ return memcached_set_error(*server, MEMCACHED_TIMEOUT, MEMCACHED_AT,
+ memcached_literal_param("if (timeout_error_occured and server->state < MEMCACHED_SERVER_STATE_IN_PROGRESS)"));
}
return memcached_set_error(*server, MEMCACHED_CONNECTION_FAILURE, MEMCACHED_AT); /* The last error should be from connect() */
Based on time/failure count fail the connect without trying. This prevents waiting in a state where
we get caught spending cycles just waiting.
*/
-static memcached_return_t backoff_handling(org::libmemcached::Instance* server, bool& in_timeout)
+static memcached_return_t backoff_handling(memcached_instance_st* server, bool& in_timeout)
{
struct timeval curr_time;
bool _gettime_success= (gettimeofday(&curr_time, NULL) == 0);
if (_gettime_success and server->next_retry < curr_time.tv_sec)
{
server->state= MEMCACHED_SERVER_STATE_NEW;
+ server->server_timeout_counter= 0;
}
else
{
return MEMCACHED_SUCCESS;
}
-static memcached_return_t _memcached_connect(org::libmemcached::Instance* server, const bool set_last_disconnected)
+static memcached_return_t _memcached_connect(memcached_instance_st* server, const bool set_last_disconnected)
{
assert(server);
if (server->fd != INVALID_SOCKET)
case MEMCACHED_CONNECTION_TCP:
rc= network_connect(server);
+#if defined(LIBMEMCACHED_WITH_SASL_SUPPORT)
if (LIBMEMCACHED_WITH_SASL_SUPPORT)
{
if (server->fd != INVALID_SOCKET and server->root->sasl.callbacks)
}
}
}
+#endif
break;
case MEMCACHED_CONNECTION_UNIX_SOCKET:
return rc;
}
-memcached_return_t memcached_connect(org::libmemcached::Instance* server)
+memcached_return_t memcached_connect(memcached_instance_st* server)
{
return _memcached_connect(server, true);
}
projects / awesomized / libmemcached / blobdiff