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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.
*/
#include "nstack_share_res.h"
#include "types.h"
#include "nsfw_recycle_api.h"
#include "nstack_securec.h"
#include "nstack_log.h"
#include "nsfw_maintain_api.h"
#include "nstack_types.h"
#include "dmm_memory.h"
#define NSTACK_SHARE_FORK_LOCK "share_fork_lock"
typedef struct
{
dmm_spinlock_t *fork_share_lock;
} nstack_share_res;
NSTACK_STATIC nstack_share_res g_nstack_share_res;
NSTACK_STATIC int
nstack_create_share_fork_lock ()
{
g_nstack_share_res.fork_share_lock = (dmm_spinlock_t *)
dmm_locked_map (sizeof (dmm_spinlock_t), NSTACK_SHARE_FORK_LOCK);
if (!g_nstack_share_res.fork_share_lock)
{
NSSOC_LOGERR ("nsfw_mem_zone_create failed]name=%s",
NSTACK_SHARE_FORK_LOCK);
return -1;
}
dmm_spin_init (g_nstack_share_res.fork_share_lock);
NSSOC_LOGDBG ("ok");
return 0;
}
NSTACK_STATIC int
nstack_lookup_share_fork_lock ()
{
g_nstack_share_res.fork_share_lock = (dmm_spinlock_t *)
dmm_lookup (NSTACK_SHARE_FORK_LOCK);
if (!g_nstack_share_res.fork_share_lock)
{
NSSOC_LOGERR ("nsfw_mem_zone_lookup failed]name=%s",
NSTACK_SHARE_FORK_LOCK);
return -1;
}
NSSOC_LOGDBG ("ok");
return 0;
}
int
nstack_init_share_res ()
{
if (nstack_create_share_fork_lock () != 0)
{
return -1;
}
return 0;
}
int
nstack_attach_share_res ()
{
if (nstack_lookup_share_fork_lock () != 0)
{
return -1;
}
#if 0
if (nstack_lookup_share_global_tick () != 0)
{
return -1;
}
#endif
return 0;
}
dmm_spinlock_t *
nstack_get_fork_share_lock ()
{
return g_nstack_share_res.fork_share_lock;
}
NSTACK_STATIC nsfw_rcc_stat
nstack_recycle_fork_share_lock (u32 exit_pid, void *pdata, u16 rec_type)
{
NSSOC_LOGDBG ("recycle]pid=%u", exit_pid);
if (g_nstack_share_res.fork_share_lock
&& (g_nstack_share_res.fork_share_lock->lock == exit_pid))
{
dmm_spin_unlock (g_nstack_share_res.fork_share_lock);
}
return NSFW_RCC_CONTINUE;
}
REGIST_RECYCLE_LOCK_REL (nstack_recycle_fork_share_lock, NULL, NSFW_PROC_APP)
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