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C++ sk_sleep函数代码示例

本文整理汇总了C++中sk_sleep函数的典型用法代码示例。如果您正苦于以下问题：C++ sk_sleep函数的具体用法？C++ sk_sleep怎么用？C++ sk_sleep使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。


在下文中一共展示了sk_sleep函数的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: svc_disconnect

static void svc_disconnect(struct atm_vcc *vcc)
{
	DEFINE_WAIT(wait);
	struct sk_buff *skb;
	struct sock *sk = sk_atm(vcc);

	pr_debug("%p\n", vcc);
	if (test_bit(ATM_VF_REGIS, &vcc->flags)) {
		prepare_to_wait(sk_sleep(sk), &wait, TASK_UNINTERRUPTIBLE);
		sigd_enq(vcc, as_close, NULL, NULL, NULL);
		while (!test_bit(ATM_VF_RELEASED, &vcc->flags) && sigd) {
			schedule();
			prepare_to_wait(sk_sleep(sk), &wait,
					TASK_UNINTERRUPTIBLE);
		}
		finish_wait(sk_sleep(sk), &wait);
	}
	/* beware - socket is still in use by atmsigd until the last
	   as_indicate has been answered */
	while ((skb = skb_dequeue(&sk->sk_receive_queue)) != NULL) {
		atm_return(vcc, skb->truesize);
		pr_debug("LISTEN REL\n");
		sigd_enq2(NULL, as_reject, vcc, NULL, NULL, &vcc->qos, 0);
		dev_kfree_skb(skb);
	}
	clear_bit(ATM_VF_REGIS, &vcc->flags);
	/* ... may retry later */
}
开发者ID:0xroot，项目名称:Blackphone-BP1-Kernel，代码行数:28，代码来源:svc.c

示例2: sk_stream_wait_connect

/**
 * sk_stream_wait_connect - Wait for a socket to get into the connected state
 * @sk: sock to wait on
 * @timeo_p: for how long to wait
 *
 * Must be called with the socket locked.
 */
int sk_stream_wait_connect(struct sock *sk, long *timeo_p)
{
	struct task_struct *tsk = current;
	DEFINE_WAIT(wait);
	int done;

	do {
		int err = sock_error(sk);
		if (err)
			return err;
		if ((1 << sk->sk_state) & ~(TCPF_SYN_SENT | TCPF_SYN_RECV))
			return -EPIPE;
		if (!*timeo_p)
			return -EAGAIN;
		if (signal_pending(tsk))
			return sock_intr_errno(*timeo_p);

		prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE);
		sk->sk_write_pending++;
		done = sk_wait_event(sk, timeo_p,
				     !sk->sk_err &&
				     !((1 << sk->sk_state) &
				       ~(TCPF_ESTABLISHED | TCPF_CLOSE_WAIT)));
		finish_wait(sk_sleep(sk), &wait);
		sk->sk_write_pending--;
	} while (!done);
	return 0;
}
开发者ID:Chong-Li，项目名称:cse522，代码行数:35，代码来源:stream.c

示例3: svc_addparty

static int svc_addparty(struct socket *sock, struct sockaddr *sockaddr,
			int sockaddr_len, int flags)
{
	DEFINE_WAIT(wait);
	struct sock *sk = sock->sk;
	struct atm_vcc *vcc = ATM_SD(sock);
	int error;

	lock_sock(sk);
	set_bit(ATM_VF_WAITING, &vcc->flags);
	prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE);
	sigd_enq(vcc, as_addparty, NULL, NULL,
		 (struct sockaddr_atmsvc *) sockaddr);
	if (flags & O_NONBLOCK) {
		finish_wait(sk_sleep(sk), &wait);
		error = -EINPROGRESS;
		goto out;
	}
	pr_debug("added wait queue\n");
	while (test_bit(ATM_VF_WAITING, &vcc->flags) && sigd) {
		schedule();
		prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE);
	}
	finish_wait(sk_sleep(sk), &wait);
	error = xchg(&sk->sk_err_soft, 0);
out:
	release_sock(sk);
	return error;
}
开发者ID:0xroot，项目名称:Blackphone-BP1-Kernel，代码行数:29，代码来源:svc.c

示例4: smc_close_stream_wait

/* wait for sndbuf data being transmitted */
static void smc_close_stream_wait(struct smc_sock *smc, long timeout)
{
	DEFINE_WAIT_FUNC(wait, woken_wake_function);
	struct sock *sk = &smc->sk;

	if (!timeout)
		return;

	if (!smc_tx_prepared_sends(&smc->conn))
		return;

	smc->wait_close_tx_prepared = 1;
	add_wait_queue(sk_sleep(sk), &wait);
	while (!signal_pending(current) && timeout) {
		int rc;

		rc = sk_wait_event(sk, &timeout,
				   !smc_tx_prepared_sends(&smc->conn) ||
				   (sk->sk_err == ECONNABORTED) ||
				   (sk->sk_err == ECONNRESET),
				   &wait);
		if (rc)
			break;
	}
	remove_wait_queue(sk_sleep(sk), &wait);
	smc->wait_close_tx_prepared = 0;
}
开发者ID:guribe94，项目名称:linux，代码行数:28，代码来源:smc_close.c

示例5: svc_dropparty

static int svc_dropparty(struct socket *sock, int ep_ref)
{
	DEFINE_WAIT(wait);
	struct sock *sk = sock->sk;
	struct atm_vcc *vcc = ATM_SD(sock);
	int error;

	lock_sock(sk);
	set_bit(ATM_VF_WAITING, &vcc->flags);
	prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE);
	sigd_enq2(vcc, as_dropparty, NULL, NULL, NULL, NULL, ep_ref);
	while (test_bit(ATM_VF_WAITING, &vcc->flags) && sigd) {
		schedule();
		prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE);
	}
	finish_wait(sk_sleep(sk), &wait);
	if (!sigd) {
		error = -EUNATCH;
		goto out;
	}
	error = xchg(&sk->sk_err_soft, 0);
out:
	release_sock(sk);
	return error;
}
开发者ID:0xroot，项目名称:Blackphone-BP1-Kernel，代码行数:25，代码来源:svc.c

示例6: pep_wait_connreq

static int pep_wait_connreq(struct sock *sk, int noblock)
{
	struct task_struct *tsk = current;
	struct pep_sock *pn = pep_sk(sk);
	long timeo = sock_rcvtimeo(sk, noblock);

	for (;;) {
		DEFINE_WAIT(wait);

		if (sk->sk_state != TCP_LISTEN)
			return -EINVAL;
		if (!hlist_empty(&pn->ackq))
			break;
		if (!timeo)
			return -EWOULDBLOCK;
		if (signal_pending(tsk))
			return sock_intr_errno(timeo);

		prepare_to_wait_exclusive(sk_sleep(sk), &wait,
						TASK_INTERRUPTIBLE);
		release_sock(sk);
		timeo = schedule_timeout(timeo);
		lock_sock(sk);
		finish_wait(sk_sleep(sk), &wait);
	}

	return 0;
}
开发者ID:flwh，项目名称:Alcatel_OT_985_kernel，代码行数:28，代码来源:pep.c

示例7: wakeupdispatch

static void wakeupdispatch(struct tipc_port *tport)
{
	struct sock *sk = (struct sock *)tport->usr_handle;

	if (waitqueue_active(sk_sleep(sk)))
		wake_up_interruptible(sk_sleep(sk));
}
开发者ID:0xroot，项目名称:Blackphone-BP1-Kernel，代码行数:7，代码来源:socket.c

示例8: sk_stream_wait_memory

int sk_stream_wait_memory(struct sock *sk, long *timeo_p)
{
	int err = 0;
	long vm_wait = 0;
	long current_timeo = *timeo_p;
	DEFINE_WAIT(wait);

	if (sk_stream_memory_free(sk))
		current_timeo = vm_wait = (net_random() % (HZ / 5)) + 2;

	while (1) {
		set_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags);

		prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE);

		if (sk->sk_err || (sk->sk_shutdown & SEND_SHUTDOWN))
			goto do_error;
		if (!*timeo_p)
			goto do_nonblock;
		if (signal_pending(current))
			goto do_interrupted;
		clear_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags);
		if (sk_stream_memory_free(sk) && !vm_wait)
			break;

		set_bit(SOCK_NOSPACE, &sk->sk_socket->flags);
		sk->sk_write_pending++;
		sk_wait_event(sk, &current_timeo, sk->sk_err ||
						  (sk->sk_shutdown & SEND_SHUTDOWN) ||
						  (sk_stream_memory_free(sk) &&
						  !vm_wait));
		sk->sk_write_pending--;

		if (vm_wait) {
			vm_wait -= current_timeo;
			current_timeo = *timeo_p;
			if (current_timeo != MAX_SCHEDULE_TIMEOUT &&
			    (current_timeo -= vm_wait) < 0)
				current_timeo = 0;
			vm_wait = 0;
		}
		*timeo_p = current_timeo;
	}
out:
	finish_wait(sk_sleep(sk), &wait);
	return err;

do_error:
	err = -EPIPE;
	goto out;
do_nonblock:
	err = -EAGAIN;
	goto out;
do_interrupted:
	err = sock_intr_errno(*timeo_p);
	goto out;
}
开发者ID:romanbb，项目名称:android_kernel_lge_d851，代码行数:57，代码来源:stream.c

示例9: l2cap_sock_accept

static int l2cap_sock_accept(struct socket *sock, struct socket *newsock,
			     int flags)
{
	DEFINE_WAIT_FUNC(wait, woken_wake_function);
	struct sock *sk = sock->sk, *nsk;
	long timeo;
	int err = 0;

	lock_sock_nested(sk, L2CAP_NESTING_PARENT);

	timeo = sock_rcvtimeo(sk, flags & O_NONBLOCK);

	BT_DBG("sk %p timeo %ld", sk, timeo);

	/* Wait for an incoming connection. (wake-one). */
	add_wait_queue_exclusive(sk_sleep(sk), &wait);
	while (1) {
		if (sk->sk_state != BT_LISTEN) {
			err = -EBADFD;
			break;
		}

		nsk = bt_accept_dequeue(sk, newsock);
		if (nsk)
			break;

		if (!timeo) {
			err = -EAGAIN;
			break;
		}

		if (signal_pending(current)) {
			err = sock_intr_errno(timeo);
			break;
		}

		release_sock(sk);

		timeo = wait_woken(&wait, TASK_INTERRUPTIBLE, timeo);

		lock_sock_nested(sk, L2CAP_NESTING_PARENT);
	}
	remove_wait_queue(sk_sleep(sk), &wait);

	if (err)
		goto done;

	newsock->state = SS_CONNECTED;

	BT_DBG("new socket %p", nsk);

done:
	release_sock(sk);
	return err;
}
开发者ID:keeper，项目名称:backports，代码行数:55，代码来源:l2cap_sock.c

示例10: svc_bind

static int svc_bind(struct socket *sock, struct sockaddr *sockaddr,
		    int sockaddr_len)
{
	DEFINE_WAIT(wait);
	struct sock *sk = sock->sk;
	struct sockaddr_atmsvc *addr;
	struct atm_vcc *vcc;
	int error;

	if (sockaddr_len != sizeof(struct sockaddr_atmsvc))
		return -EINVAL;
	lock_sock(sk);
	if (sock->state == SS_CONNECTED) {
		error = -EISCONN;
		goto out;
	}
	if (sock->state != SS_UNCONNECTED) {
		error = -EINVAL;
		goto out;
	}
	vcc = ATM_SD(sock);
	addr = (struct sockaddr_atmsvc *) sockaddr;
	if (addr->sas_family != AF_ATMSVC) {
		error = -EAFNOSUPPORT;
		goto out;
	}
	clear_bit(ATM_VF_BOUND, &vcc->flags);
	    /* failing rebind will kill old binding */
	/* @@@ check memory (de)allocation on rebind */
	if (!test_bit(ATM_VF_HASQOS, &vcc->flags)) {
		error = -EBADFD;
		goto out;
	}
	vcc->local = *addr;
	set_bit(ATM_VF_WAITING, &vcc->flags);
	sigd_enq(vcc, as_bind, NULL, NULL, &vcc->local);
	for (;;) {
		prepare_to_wait(sk_sleep(sk), &wait, TASK_UNINTERRUPTIBLE);
		if (!test_bit(ATM_VF_WAITING, &vcc->flags) || !sigd)
			break;
		schedule();
	}
	finish_wait(sk_sleep(sk), &wait);
	clear_bit(ATM_VF_REGIS, &vcc->flags); /* doesn't count */
	if (!sigd) {
		error = -EUNATCH;
		goto out;
	}
	if (!sk->sk_err)
		set_bit(ATM_VF_BOUND, &vcc->flags);
	error = -sk->sk_err;
out:
	release_sock(sk);
	return error;
}
开发者ID:020gzh，项目名称:linux，代码行数:55，代码来源:svc.c

示例11: shutdown

static int shutdown(struct socket *sock, int how)
{
	struct sock *sk = sock->sk;
	struct tipc_port *tport = tipc_sk_port(sk);
	struct sk_buff *buf;
	int res;

	if (how != SHUT_RDWR)
		return -EINVAL;

	lock_sock(sk);

	switch (sock->state) {
	case SS_CONNECTING:
	case SS_CONNECTED:

		/* Disconnect and send a 'FIN+' or 'FIN-' message to peer */
restart:
		buf = __skb_dequeue(&sk->sk_receive_queue);
		if (buf) {
			atomic_dec(&tipc_queue_size);
			if (TIPC_SKB_CB(buf)->handle != 0) {
				kfree_skb(buf);
				goto restart;
			}
			tipc_disconnect(tport->ref);
			tipc_reject_msg(buf, TIPC_CONN_SHUTDOWN);
		} else {
			tipc_shutdown(tport->ref);
		}

		sock->state = SS_DISCONNECTING;

		/* fall through */

	case SS_DISCONNECTING:

		/* Discard any unreceived messages; wake up sleeping tasks */

		discard_rx_queue(sk);
		if (waitqueue_active(sk_sleep(sk)))
			wake_up_interruptible(sk_sleep(sk));
		res = 0;
		break;

	default:
		res = -ENOTCONN;
	}

	release_sock(sk);
	return res;
}
开发者ID:0xroot，项目名称:Blackphone-BP1-Kernel，代码行数:52，代码来源:socket.c

示例12: wait_for_packet

/*
 * Wait for a packet..
 */
static int wait_for_packet(struct sock *sk, int *err, long *timeo_p)
{
	int error;
	DEFINE_WAIT_FUNC(wait, receiver_wake_function);
    /* 
     前面的操作都是初始化wait，为将socket加入wait队列作准备，这部分代码牵涉到进程调度。关于进程调度，我      只是知道一些皮毛，留在以后学习。这里只需要将其看作是一些加入wait队列的准备工作即可，并不影响理解代码      。
     */
	prepare_to_wait_exclusive(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE);

	/* Socket errors? */
	error = sock_error(sk);
	if (error)
		goto out_err;
    /* 一个完备检测。在决定wait和调用wait之间，有数据包到了，那么就不需要wait，所以这里再次检查socket      的队列是否为空 */

	if (!skb_queue_empty(&sk->sk_receive_queue))
		goto out;

	/* Socket shut down? */
	/* 完备检测。也许socket无数据包读取，因为socket已经被另外的线程关闭了。这样可以保证关闭socket的时      候，不会导致其他的socket的读写操作被阻塞。*/
	if (sk->sk_shutdown & RCV_SHUTDOWN)
		goto out_noerr;

	/* Sequenced packets can come disconnected.
	 * If so we report the problem
	 *//* 对于面向连接的socket进行检查。如果是面向连接的socket，如果不是已经建立连接或者正在监听状态的so       cket是不可能有数据包的。不然即出错*/
	error = -ENOTCONN;
	if (connection_based(sk) &&
	    !(sk->sk_state == TCP_ESTABLISHED || sk->sk_state == TCP_LISTEN))
		goto out_err;

	/* handle signals */
	if (signal_pending(current))/* 检查是否有pending的signal，保证阻塞时，进程可以被signal唤醒 */
		goto interrupted;

	error = 0;
	*timeo_p = schedule_timeout(*timeo_p); /* sleep本进程，直至满足唤醒条件或者被信号唤醒——因为前面设置了TASK_INTERRUPTIBLE*/
out:
	finish_wait(sk_sleep(sk), &wait); /* wait队列的清理工作 */
	return error;
interrupted:
	error = sock_intr_errno(*timeo_p);
out_err:
	*err = error;
	goto out;
out_noerr:
	*err = 0;
	error = 1;
	goto out;
}
开发者ID:B070501113，项目名称:Reading-and-comprehense-linux-Kernel-network-protocol-stack，代码行数:53，代码来源:datagram.c

示例13: smc_tx_wait_memory

/* blocks sndbuf producer until at least one byte of free space available */
static int smc_tx_wait_memory(struct smc_sock *smc, int flags)
{
	DEFINE_WAIT_FUNC(wait, woken_wake_function);
	struct smc_connection *conn = &smc->conn;
	struct sock *sk = &smc->sk;
	bool noblock;
	long timeo;
	int rc = 0;

	/* similar to sk_stream_wait_memory */
	timeo = sock_sndtimeo(sk, flags & MSG_DONTWAIT);
	noblock = timeo ? false : true;
	add_wait_queue(sk_sleep(sk), &wait);
	while (1) {
		sk_set_bit(SOCKWQ_ASYNC_NOSPACE, sk);
		if (sk->sk_err ||
		    (sk->sk_shutdown & SEND_SHUTDOWN) ||
		    conn->local_tx_ctrl.conn_state_flags.peer_done_writing) {
			rc = -EPIPE;
			break;
		}
		if (smc_cdc_rxed_any_close(conn)) {
			rc = -ECONNRESET;
			break;
		}
		if (!timeo) {
			if (noblock)
				set_bit(SOCK_NOSPACE, &sk->sk_socket->flags);
			rc = -EAGAIN;
			break;
		}
		if (signal_pending(current)) {
			rc = sock_intr_errno(timeo);
			break;
		}
		sk_clear_bit(SOCKWQ_ASYNC_NOSPACE, sk);
		if (atomic_read(&conn->sndbuf_space))
			break; /* at least 1 byte of free space available */
		set_bit(SOCK_NOSPACE, &sk->sk_socket->flags);
		sk_wait_event(sk, &timeo,
			      sk->sk_err ||
			      (sk->sk_shutdown & SEND_SHUTDOWN) ||
			      smc_cdc_rxed_any_close(conn) ||
			      atomic_read(&conn->sndbuf_space),
			      &wait);
	}
	remove_wait_queue(sk_sleep(sk), &wait);
	return rc;
}
开发者ID:ReneNyffenegger，项目名称:linux，代码行数:50，代码来源:smc_tx.c

示例14: sk_stream_wait_close

void sk_stream_wait_close(struct sock *sk, long timeout)
{
	if (timeout) {
		DEFINE_WAIT(wait);

		do {
			prepare_to_wait(sk_sleep(sk), &wait,
					TASK_INTERRUPTIBLE);
			if (sk_wait_event(sk, &timeout, !sk_stream_closing(sk)))
				break;
		} while (!signal_pending(current) && timeout);

		finish_wait(sk_sleep(sk), &wait);
	}
}
开发者ID:Chong-Li，项目名称:cse522，代码行数:15，代码来源:stream.c

示例15: poll

static unsigned int poll(struct file *file, struct socket *sock,
			 poll_table *wait)
{
	struct sock *sk = sock->sk;
	u32 mask = 0;

	poll_wait(file, sk_sleep(sk), wait);

	switch ((int)sock->state) {
	case SS_READY:
	case SS_CONNECTED:
		if (!tipc_sk_port(sk)->congested)
			mask |= POLLOUT;
		/* fall thru' */
	case SS_CONNECTING:
	case SS_LISTENING:
		if (!skb_queue_empty(&sk->sk_receive_queue))
			mask |= (POLLIN | POLLRDNORM);
		break;
	case SS_DISCONNECTING:
		mask = (POLLIN | POLLRDNORM | POLLHUP);
		break;
	}

	return mask;
}
开发者ID:0xroot，项目名称:Blackphone-BP1-Kernel，代码行数:26，代码来源:socket.c


注：本文中的sk_sleep函数示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。