From f52f2c2828047c2f30d30fc1fe2b54d8db146d49 Mon Sep 17 00:00:00 2001
From: wangzhengquan <wangzhengquan85@126.com>
Date: 星期四, 25 二月 2021 15:56:35 +0800
Subject: [PATCH] update

---
 src/shm/hashtable.cpp |  110 +++++++++++++++++++++++++++++++++++-------------------
 1 files changed, 71 insertions(+), 39 deletions(-)

diff --git a/src/shm/hashtable.cpp b/src/shm/hashtable.cpp
index 60633bc..e435172 100755
--- a/src/shm/hashtable.cpp
+++ b/src/shm/hashtable.cpp
@@ -5,6 +5,9 @@
 #include "logger_factory.h"
 #include <set>
 #include <functional>
+#include <limits.h>
+
+
 
 typedef struct tailq_entry_t
 {
@@ -29,22 +32,12 @@
 
   memset(hashtable, 0, sizeof(hashtable_t));
   hashtable->mutex = svsem_get(IPC_PRIVATE, 1);
-  // hashtable->wlock = svsem_get(IPC_PRIVATE, 1);
-  // hashtable->cond = svsem_get(IPC_PRIVATE, 1);
-  // hashtable->readcnt = 0;
-
-  // FILE * semfile = fopen("./sem.txt", "w+");
-  // if(semfile == NULL) {
-  //   err_exit(errno, "fopen");
-  // }
-  // fprintf(semfile, "hashtable->mutex=%d\n", hashtable->mutex);
-  // fclose(semfile);
+  hashtable->queueCount = 0;
+  hashtable->currentKey = START_KEY;
 }
 
 void hashtable_destroy(hashtable_t *hashtable) {
   svsem_remove( hashtable->mutex);
-  // svsem_remove( hashtable->wlock);
-  // svsem_remove( hashtable->cond);
 }
 
 
@@ -110,13 +103,13 @@
   int rv;
 
   if( (rv = svsem_wait(hashtable->mutex)) != 0) {
-    LoggerFactory::getLogger()->error(rv, "hashtable_remove\n");
+    LoggerFactory::getLogger()->error(errno, "hashtable_remove\n");
   }
   tailq_header_t *my_tailq_head = hashtable->array[code] ;
   if ( my_tailq_head == NULL)
   {
     if((rv = svsem_post(hashtable->mutex)) != 0) {
-      LoggerFactory::getLogger()->error(rv, "hashtable_remove\n");
+      LoggerFactory::getLogger()->error(errno, "hashtable_remove\n");
     }
     return NULL;
   } else {
@@ -130,21 +123,19 @@
 
         /* mm_free the item as we don't need it anymore. */
         mm_free(item);
+        hashtable->queueCount--;
         svsem_post(hashtable->mutex);
         return oldvalue;
       }
     }
 
     if((rv = svsem_post(hashtable->mutex)) != 0) {
-      LoggerFactory::getLogger()->error(rv, "hashtable_remove\n");
+      LoggerFactory::getLogger()->error(errno, "hashtable_remove\n");
     }
 
     return NULL;
   }
 }
-
-
-
 
 void *hashtable_get(hashtable_t *hashtable, int key) {
   void * res = _hashtable_get(hashtable, key);
@@ -152,20 +143,72 @@
 }
 
 void hashtable_put(hashtable_t *hashtable, int key, void *value) {
+  _hashtable_put(hashtable, key, value); 
+  hashtable->queueCount++;
+}
+
+bool hashtable_check_put(hashtable_t *hashtable, int key, void *value, bool overwrite) {
 
   int rv;
+  void * val;
   if(( rv = svsem_wait(hashtable->mutex)) != 0) {
-    LoggerFactory::getLogger()->error(rv, "hashtable_put\n");
+    LoggerFactory::getLogger()->error(errno, "hashtable_put\n");
   }
+  if(overwrite) {
+    _hashtable_put(hashtable, key, value);
+    goto suc;
+  }
+  val = _hashtable_get(hashtable, key);
+  // val = 1鏄痑llockey鐨勬儏鍐�
+  if(val != NULL && val != (void *)1) 
+    goto fail;
 
   _hashtable_put(hashtable, key, value);
 
+suc:
   if(( rv = svsem_post(hashtable->mutex)) != 0) {
-    LoggerFactory::getLogger()->error(rv, "hashtable_put\n");
+    LoggerFactory::getLogger()->error(errno, "hashtable_put\n");
   }
+  return true;
+
+fail:
+  if(( rv = svsem_post(hashtable->mutex)) != 0) {
+    LoggerFactory::getLogger()->error(errno, "hashtable_put\n");
+  }
+  return false;
 }
 
+int hashtable_get_queue_count(hashtable_t *hashtable) {
+  return hashtable->queueCount;
+}
 
+int hashtable_alloc_key(hashtable_t *hashtable) {
+  int rv;
+  int key = hashtable->currentKey;
+ 
+  if( key == INT_MAX || key < START_KEY) {
+    key = START_KEY;
+  }
+
+  rv = svsem_wait(hashtable->mutex);
+  if(rv != 0) {
+    LoggerFactory::getLogger()->error(errno, "hashtable_alloc_key\n");
+  }
+
+  while(_hashtable_get(hashtable, key) != NULL) {
+    key++;
+  }
+  // 鍗犵敤key
+  _hashtable_put(hashtable, key, (void *)1);
+
+  hashtable->currentKey = key;
+  rv = svsem_post(hashtable->mutex);
+  if(rv != 0) {
+    LoggerFactory::getLogger()->error(errno, "hashtable_alloc_key\n");
+  }
+
+  return key;
+}
 
 static inline void _hashtable_foreach(hashtable_t *hashtable, std::function<void(int, void *)>  cb) {
   tailq_entry_t *item;
@@ -207,25 +250,13 @@
 }
 
 
-int hashtable_alloc_key(hashtable_t *hashtable) {
-  int rv;
-  int key = START_KEY;
-  rv = svsem_wait(hashtable->mutex);
-  if(rv != 0) {
-    LoggerFactory::getLogger()->error(rv, "hashtable_alloc_key\n");
-  }
 
-  while(_hashtable_get(hashtable, key) != NULL) {
-    key++;
-  }
-  // 鍗犵敤key
-  _hashtable_put(hashtable, key, (void *)1);
+int hashtable_lock(hashtable_t *hashtable) {
+  return svsem_wait(hashtable->mutex);
+}
 
-  rv = svsem_post(hashtable->mutex);
-  if(rv != 0) {
-    LoggerFactory::getLogger()->error(rv, "hashtable_alloc_key\n");
-  }
-  return key;
+int hashtable_unlock(hashtable_t *hashtable) {
+  return svsem_post(hashtable->mutex);
 }
 
 
@@ -234,7 +265,7 @@
   tailq_entry_t *item;
   int rv;
   if( (rv = svsem_wait(hashtable->mutex)) != 0) {
-    LoggerFactory::getLogger()->error(rv, "hashtable_removeall\n");
+    LoggerFactory::getLogger()->error(errno, "hashtable_removeall\n");
   }
   for (int i = 0; i < MAPSIZE; i++)
   {
@@ -252,8 +283,9 @@
     hashtable->array[i] = NULL;
   }
 
+  hashtable->queueCount = 0;
   if((rv = svsem_post(hashtable->mutex)) != 0) {
-    LoggerFactory::getLogger()->error(rv, "hashtable_removeall\n");
+    LoggerFactory::getLogger()->error(errno, "hashtable_removeall\n");
   }
 }
 

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