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Created LoadMemBlock/SaveMemBlock in "inc/hgl/io", their code comes from MemBlock.h

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This commit is contained in:
hyzboy
2023-07-15 00:06:30 +08:00
parent c722d40049
commit 11ef085d97
4 changed files with 76 additions and 55 deletions
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25
inc/hgl/io/LoadMemBlock.h Normal file
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@@ -0,0 +1,25 @@
#pragma once
#include<hgl/type/MemBlock.h>
#include<hgl/io/FileInputStream.h>
namespace hgl
{
/**
* 加载一个文件到内存块类中
*/
template<typename T> MemBlock<T> *LoadFileToMemBlock(const OSString &filename)
{
io::FileInputStream fis;
if(!fis.Open(filename))return(nullptr);
const size_t file_size =fis.GetSize();
const size_t size =(file_size+sizeof(T)-1)/sizeof(T);
MemBlock<T> *mb=new MemBlock<T>(size);
fis.Read(mb->data(),file_size);
return(mb);
}
}//namespace hgl

18
inc/hgl/io/SaveMemBlock.h Normal file
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@@ -0,0 +1,18 @@
#pragma once
#include<hgl/type/MemBlock.h>
#include<hgl/filesystem/FileSystem.h>
namespace hgl
{
/**
* 保存一个内存块到文件
*/
template<typename T> bool SaveMemBlockToFile(const OSString &filename,const MemBlock<T> &mb)
{
const size_t size=mb.bytes();
if(size<=0)return(true);
return(hgl::filesystem::SaveMemoryToFile(filename,mb.data(),mb.bytes())==size);
}
}//namespace hgl

40
inc/hgl/type/MemBlock.h
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@@ -2,9 +2,6 @@
#define HGL_MEM_BLOCK_INCLUDE
#include<hgl/type/DataType.h>
#include<hgl/io/FileInputStream.h>
#include<hgl/filesystem/FileSystem.h>
#include<hgl/thread/ThreadMutex.h>
namespace hgl
{
/**
@@ -25,6 +22,12 @@ namespace hgl
const size_t GetBytes ()const{return cur_size*sizeof(T);} ///<取得内存块字节数
const size_t GetMaxBytes ()const{return buf_size*sizeof(T);} ///<取得内存块最大字节数
T * begin (){return buf;} ///<取得内存块起始指针
T * end (){return buf+cur_size;} ///<取得内存块结束地址指针
const T * begin ()const{return buf;} ///<取得内存块起始
const T * end ()const{return buf+cur_size;} ///<取得内存块结束地址指针
/**
* 分配指定空间出来，供未来使用
*/
@@ -173,36 +176,5 @@ namespace hgl
return buf[n];
}
};//template<typename T> class MemBlock
/**
* 加载一个文件到内存块类中
*/
template<typename T> MemBlock<T> *LoadFileToMemBlock(const OSString &filename)
{
io::FileInputStream fis;
if(!fis.Open(filename))return(nullptr);
const size_t file_size =fis.GetSize();
const size_t size =(file_size+sizeof(T)-1)/sizeof(T);
MemBlock<T> *mb=new MemBlock<T>(size);
fis.Read(mb->data(),file_size);
return(mb);
}
/**
* 保存一个内存块到文件
*/
template<typename T> bool SaveMemBlockToFile(const OSString &filename,const MemBlock<T> &mb)
{
const size_t size=mb.bytes();
if(size<=0)return(true);
return(hgl::filesystem::SaveMemoryToFile(filename,mb.data(),mb.bytes())==size);
}
}//namespace hgl
#endif//HGL_MEM_BLOCK_INCLUDE