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/*
*
* Copyright (c) 2018 Huawei Technologies Co.,Ltd.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __NSTACK_SOCKET_H__
#define __NSTACK_SOCKET_H__
#include <sys/socket.h>
#include <poll.h>
#include <sys/epoll.h>
#undef NSTACK_MK_DECL
#define NSTACK_MK_DECL(ret, fn, args) extern ret nstack_##fn args
#include "declare_syscalls.h"
int release_fd (int fd, nstack_fd_local_lock_info_t * local_lock);
int nstack_posix_api_init ();
int nstack_close (int fd);
int nstack_socket (int domain, int itype, int protocol);
#define NSTACK_EPOLL_FD_CHECK_RET_UNLOCK(fdVal, fun, inf, err, local_lock, unlock) \
if ((NULL == inf) || ((inf)->attr & NSTACK_FD_ATTR_EPOLL_SOCKET)) \
{ \
nstack_set_errno(err); \
NSSOC_LOGERR("nstack [%s] call, fd=0x%x is epoll fd return fail errno=%d [return]", #fun, fdVal, err); \
unlock(fdVal, local_lock);\
return -1;\
}
#define NSTACK_EPOLL_FD_CHECK_RET_UNLOCK_COMMON(fdVal, fun, inf, err, local_lock) \
NSTACK_EPOLL_FD_CHECK_RET_UNLOCK(fdVal, fun, inf, err, local_lock, UNLOCK_COMMON)
#define LOCK_RECV(fd, fd_inf, local_lock)\
LOCK_BASE_WITHOUT_KERNEL(fd, fd_inf, local_lock)
#define UNLOCK_RECV(fd, local_lock) \
UNLOCK_BASE(fd, local_lock)
#define NSTACK_EPOLL_FD_CHECK_RET_UNLOCK_RECV(fdVal, fun, inf, err, local_lock) \
NSTACK_EPOLL_FD_CHECK_RET_UNLOCK(fdVal, fun, inf, err, local_lock, UNLOCK_RECV)
#define LOCK_SEND(fd, fd_inf, local_lock) \
INC_FD_REF(fd, fd_inf, local_lock)
static inline void
UNLOCK_SEND (int fd, nstack_fd_local_lock_info_t * local_lock)
{
if ((NULL != local_lock) && atomic_dec (&local_lock->fd_ref) == 0)
{
release_fd (fd, local_lock);
}
}
#define NSTACK_EPOLL_FD_CHECK_RET_UNLOCK_SEND(fdVal, fun, inf, err, local_lock) \
NSTACK_EPOLL_FD_CHECK_RET_UNLOCK(fdVal, fun, inf, err, local_lock, UNLOCK_SEND)
#define LOCK_CONNECT(fd, fd_inf, local_lock) \
LOCK_BASE(fd, fd_inf, local_lock)
#define UNLOCK_CONNECT(fd, local_lock) \
UNLOCK_BASE(fd, local_lock)
#define NSTACK_EPOLL_FD_CHECK_RET_UNLOCK_CONNECT(fdVal, fun, inf, err, local_lock) \
NSTACK_EPOLL_FD_CHECK_RET_UNLOCK(fdVal, fun, inf, err, local_lock, UNLOCK_CONNECT)
#define LOCK_ACCEPT(fd, fd_inf, local_lock) \
LOCK_BASE(fd, fd_inf, local_lock)
#define UNLOCK_ACCEPT(fd, local_lock) \
UNLOCK_BASE(fd, local_lock)
#define NSTACK_EPOLL_FD_CHECK_RET_UNLOCK_ACCEPT(fdVal, fun, inf, err, local_lock) \
NSTACK_EPOLL_FD_CHECK_RET_UNLOCK(fdVal, fun, inf, err, local_lock, UNLOCK_ACCEPT)
#define LOCK_EPOLL(fd, fd_inf, local_lock) INC_FD_REF(fd, fd_inf, local_lock)
static inline void
UNLOCK_EPOLL (int fd, nstack_fd_local_lock_info_t * local_lock)
{
if ((NULL != local_lock) && atomic_dec (&local_lock->fd_ref) == 0)
{
release_fd (fd, local_lock);
}
}
#define LOCK_EPOLL_CTRL(fd_val, local_lock, epoll_fd, epoll_local_lock){\
if (local_lock)\
{\
atomic_inc(&local_lock->fd_ref);\
common_mem_spinlock_lock(&local_lock->close_lock);\
nstack_fd_Inf* fd_inf = nstack_getValidInf(fd_val);\
if (fd_inf)\
{\
if (local_lock->fd_status != FD_OPEN)\
{\
NSSOC_LOGWAR("fd %d is not open [return]", fd_val);\
nstack_set_errno(EBADF);\
common_mem_spinlock_unlock(&local_lock->close_lock);\
if(atomic_dec(&local_lock->fd_ref)==0){ \
release_fd(fd_val, local_lock);\
}\
UNLOCK_EPOLL(epoll_fd, epoll_local_lock);\
return -1;\
}\
}\
}\
}
static inline void
UNLOCK_EPOLL_CTRL (int fd, nstack_fd_local_lock_info_t * local_lock)
{
if (local_lock)
{
common_mem_spinlock_unlock (&local_lock->close_lock);
if (atomic_dec (&local_lock->fd_ref) == 0)
{
release_fd (fd, local_lock);
}
}
}
#define INC_FD_REF(fd, fd_inf, local_lock){ \
if (local_lock)\
{\
atomic_inc(&local_lock->fd_ref);\
if (local_lock->fd_status != FD_OPEN)\
{\
nstack_set_errno(EBADF);\
NSSOC_LOGERR("nstack call, fd_status=%d [return]", local_lock->fd_status); \
if(atomic_dec(&local_lock->fd_ref) == 0){ \
release_fd(fd, local_lock);\
}\
return -1;\
}\
} \
}
#define LOCK_BASE(fd, fd_inf, local_lock){\
INC_FD_REF(fd, fd_inf, local_lock);\
}
/* if is kernel fd, don't need to lock */
#define LOCK_BASE_WITHOUT_KERNEL(fd, fd_inf, local_lock){\
INC_FD_REF(fd, fd_inf, local_lock);\
}
static inline void
UNLOCK_BASE (int fd, nstack_fd_local_lock_info_t * local_lock)
{
if ((NULL != local_lock) && (atomic_dec (&local_lock->fd_ref) == 0))
{
release_fd (fd, local_lock);
}
}
#define LOCK_COMMON(fd, fd_inf, local_lock) \
LOCK_BASE(fd, fd_inf, local_lock)
#define UNLOCK_COMMON(fd, local_lock) \
UNLOCK_BASE(fd, local_lock)
#define LOCK_CLOSE(local_lock){\
if (local_lock)\
{\
common_mem_spinlock_lock(&local_lock->close_lock);\
}\
}
static inline void
UNLOCK_CLOSE (nstack_fd_local_lock_info_t * local_lock)
{
if (local_lock)
{
common_mem_spinlock_unlock (&local_lock->close_lock);
}
}
#define LOCK_FOR_EP(local_lock) LOCK_CLOSE(local_lock)
#define UNLOCK_FOR_EP(local_lock) UNLOCK_CLOSE(local_lock)
#define NSTACK_INIT_CHECK_RET(fun) \
if (nstack_fw_init()) { \
NSSOC_LOGERR("nstack %s call, but initial not finished yet [return]", #fun); \
nstack_set_errno(ENOSYS); \
return -1; \
}
#define NSTACK_MODULE_ERROR_SET(Index)
#endif /* __NSTACK_SOCKET_H__ */
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