first commit

2024-12-15 20:42:32 +08:00
commit 986b2fca12
586 changed files with 154149 additions and 0 deletions
--- a/GB28181Device/bm/ihash.h
+++ b/GB28181Device/bm/ihash.h
@@ -0,0 +1,73 @@
+/***************************************************************************************
+ *
+ *  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+ *
+ *  By downloading, copying, installing or using the software you agree to this license.
+ *  If you do not agree to this license, do not download, install, 
+ *  copy or use the software.
+ *
+ *  Copyright (C) 2014-2022, Happytimesoft Corporation, all rights reserved.
+ *
+ *  Redistribution and use in binary forms, with or without modification, are permitted.
+ *
+ *  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 INDEX_HASH_H
+#define INDEX_HASH_H
+
+
+#define IHASH_KEY_MAX_LEN		127
+
+typedef struct index_hash_node
+{
+	uint32      bNodeValidate	:	1;		    // 该节点有效
+	uint32	    bLinkValidate	:	1;		    // 该节点有冲突后续链表
+	uint32	    bFreeList		:	1;		    // 该节点在FreeList中
+	uint32	    reserved		:	29;
+	char        key_str[IHASH_KEY_MAX_LEN+1];	// 索引字段实际值
+	uint64	    index;				            // 用户单元索引/指针
+	uint32	    next_index;					    // 冲突链数组索引
+} IHASHNODE;
+
+typedef struct index_hash_ctx
+{
+	uint32	    hash_num;					    // hash单元总数
+	uint32	    link_num;					    // 冲突单元总数
+	IHASHNODE *	hash_array;					    // hash单元
+	IHASHNODE *	link_array;					    // 冲突单元
+	void *		hash_semMutex;
+	void *		link_semMutex;
+	uint32	    link_index;
+	IHASHNODE *	p_node;						    // 遍历查找使用的内部节点记录
+	uint32	    conflict_cnt;				    // 冲突计数
+} IHASHCTX;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+HT_API IHASHCTX *  ihash_init(uint32 hash_num, uint32 link_num);
+HT_API void        ihash_uninit(IHASHCTX * p_ctx);
+HT_API uint32      ihash_link_pop(IHASHCTX * p_ctx);
+HT_API void        ihash_link_push(IHASHCTX * p_ctx, uint32 push_index);
+HT_API uint32      ihash_index(IHASHCTX * p_ctx, const char * key_str);
+HT_API BOOL        ihash_add(IHASHCTX * p_ctx, const char * key_str, uint64 index, int type);
+HT_API BOOL        ihash_del(IHASHCTX * p_ctx, const char * key_str, uint64 index);
+HT_API uint64      ihash_find_index_from_keystr(IHASHCTX * p_ctx, const char * key_str);
+HT_API void        ihash_lock(IHASHCTX * p_ctx);
+HT_API void        ihash_unlock(IHASHCTX * p_ctx);
+HT_API void *      ihash_save_var(IHASHCTX * p_ctx);
+HT_API void        ihash_restore_var(IHASHCTX * p_ctx, void * p_node);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif	// INDEX_HASH_H
+
+