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bug fixes for CRC caching and working version of cache manager

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This commit is contained in:
Mark Vejvoda
2010-05-01 00:53:43 +00:00
parent 5cf84e8a2a
commit 33084f8dbe
4 changed files with 51 additions and 26 deletions
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30
source/shared_lib/include/platform/common/cache_manager.h
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@@ -14,7 +14,11 @@
#define _SHARED_PLATFORMCOMMON_CACHEMANAGER_H_
#include "thread.h"
#include <map>
#include <string>
#include <stdexcept>
using namespace std;
using namespace Shared::Platform;
namespace Shared { namespace PlatformCommon {
@@ -26,9 +30,8 @@ namespace Shared { namespace PlatformCommon {
class CacheManager
{
protected:
Mutex mutexCache;
static std::map<string, bool> masterCacheList;
static Mutex mutexCache;
static std::map<std::string, bool> masterCacheList;
typedef enum {
cacheItemGet,
@@ -36,12 +39,23 @@ protected:
} CacheAccessorType;
template <typename T>
static T manageCachedItem(string cacheKey, T *value,CacheAccessorType accessor) {
static std::map<string, T> itemCache;
static T & manageCachedItem(string cacheKey, T *value,CacheAccessorType accessor) {
static std::map<string, T > itemCache;
if(accessor == cacheItemSet) {
if(value == NULL) {
throw runtime_error("Unexpected NULL object setting cache value!");
}
masterCacheList[cacheKey] = true;
itemCache[cacheKey] = *value;
try {
mutexCache.p();
itemCache[cacheKey] = *value;
mutexCache.v();
}
catch(const std::exception &ex) {
mutexCache.v();
throw runtime_error(ex.what());
}
}
return itemCache[cacheKey];
}
@@ -56,11 +70,11 @@ public:
}
template <typename T>
static T setCachedItem(string cacheKey, T value) {
static void setCachedItem(string cacheKey, const T value) {
manageCachedItem<T>(cacheKey,value,cacheItemSet);
}
template <typename T>
static T getCachedItem(string cacheKey) {
static T & getCachedItem(string cacheKey) {
return manageCachedItem<T>(cacheKey,NULL,cacheItemGet);
}