1 files changed, 114 insertions, 0 deletions
diff --git a/src/framework/include/nsfw_ring_fun.h b/src/framework/include/nsfw_ring_fun.h
new file mode 100644
index 0000000..f93a59d
--- /dev/null
+++ b/src/framework/include/nsfw_ring_fun.h
@@ -0,0 +1,114 @@
+/*
+*
+* 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 _NSFW_RING_FUN_H_
+#define _NSFW_RING_FUN_H_
+
+#include <stdint.h>
+#include "nsfw_mem_api.h"
+#include "nsfw_ring_data.h"
+#include "nsfw_branch_prediction.h"
+#include "pid_common.h"
+
+/*
+   for nstack I advise addrbase set to lowest of mmaped hugepage Addr.
+   to simple:
+   1. ring element is from mmaped mem, set Addrbase to 0x7fffffffffff - 0xffffffffff is OK;
+   1. ring element is from heap, set Addrbase to NULL is ok;
+*/
+static inline void nsfw_mem_ring_init(struct nsfw_mem_ring *ring,
+                                      unsigned int size, void *addrbase,
+                                      unsigned char memtype,
+                                      unsigned char flag)
+{
+    unsigned int loop = 0;
+
+    if (!ring)
+    {
+        return;
+    }
+
+    ring->prod.head = 0;
+    ring->prod.tail = 0;
+    ring->cons.head = 0;
+    ring->cons.tail = 0;
+    ring->size = size;
+    ring->eltsize = 0;
+    ring->mask = size - 1;
+    ring->memtype = memtype;
+    ring->ringflag = flag;
+    ring->prodtflag = ring->prodhflag = get_sys_pid();
+    ring->conshflag = ring->constflag = get_sys_pid();
+    /*if shmem, addrbase already changed to primary memory address */
+    ring->Addrbase = addrbase;
+
+    ring->overflow_count = 0;
+    ring->overflow_time.tv_sec = 0;
+    ring->overflow_time.tv_usec = 0;
+
+    /*init Ring */
+    for (loop = 0; loop < size; loop++)
+    {
+        /*
+           for a empty ring, version is the mapping head val - size
+           so the empty ring's ver is loop-size;
+         */
+        ring->ring[loop].data_s.ver = (loop - size);
+        ring->ring[loop].data_s.val = 0;
+    }
+}
+
+/*
+another way to init Pool while no continuous space
+1. init a empt rtp_perf_ring
+2. add element to PerRing.
+*/
+static inline void nsfw_mem_pool_head_init(struct nsfw_mem_ring *ring,
+                                           unsigned int size,
+                                           unsigned int eltsize,
+                                           void *addrbase,
+                                           nsfw_mem_type memtype,
+                                           nsfw_mpool_type flag)
+{
+    ring->prod.head = size;
+    ring->prod.tail = size;
+    ring->cons.head = 0;
+    ring->cons.tail = 0;
+    ring->size = size;
+    ring->eltsize = eltsize;
+    ring->mask = size - 1;
+    ring->memtype = memtype;
+    ring->ringflag = flag;
+    ring->prodtflag = ring->prodhflag = get_sys_pid();
+    ring->conshflag = ring->constflag = get_sys_pid();
+    /*if shmem, addrbase already changed to primary memory address */
+    ring->Addrbase = addrbase;
+    ring->overflow_count = 0;
+    ring->overflow_time.tv_sec = 0;
+    ring->overflow_time.tv_usec = 0;
+
+    return;
+}
+
+#define NSFW_RING_FLAG_CHECK_RET(handle, desc) {\
+        if (((struct  nsfw_mem_ring*)mhandle)->ringflag >= NSFW_MPOOL_TYPEMAX) \
+        { \
+            NSRTP_LOGERR("invalid ring]desc=%s,ringflag=%d", desc, ((struct  nsfw_mem_ring*)mhandle)->ringflag); \
+            return 0; \
+        } \
+    }
+
+#endif /*_NSFW_RING_FUN_H_*/