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/**//****************************************************************************//**//* Nebula2 - Tutorial 02 *//**//* 使用FileServer2 *//**//* author: happykevins *//**//****************************************************************************/
/**////----------------------------------------------------------------------------
/// +必要头文件#include "kernel/nkernelserver.h"#include "kernel/nfileserver2.h"#include "kernel/nfile.h"#include "kernel/nautoref.h"/**//// -必要头文件
///----------------------------------------------------------------------------///----------------------------------------------------------------------------/// +链接库#pragma comment(lib, "wsock32.lib")#pragma comment(lib, "d_nkernel.lib")/**//// -链接库///----------------------------------------------------------------------------///----------------------------------------------------------------------------/// +Applicationint main(int argc, const char** argv)...{
/**//// 创建KernelServer nKernelServer* ks = n_new(nKernelServer); /**////---------------------------------------------------------------------------- /// +获得FileServer2的实例
/// @note:有以下四种方式。在一般情况下他们是等价的 nFileServer2* pFileServer = NULL; // 1.通过Singleton获得 pFileServer = nFileServer2::Instance(); // 2.通过KernelServer直接获得 pFileServer = ks->GetFileServer(); // 3.通过NOH体系获得 pFileServer = (nFileServer2*)ks->Lookup("sys/servers/file2"); // 4.通过nAutoRef获得(同NOH体系获得法) nAutoRef<nFileServer2> refFileServer("sys/servers/file2"); if ( refFileServer.isvalid() ) ...{ pFileServer = refFileServer.get(); } /**//// -获得FileServer2的实例 ///---------------------------------------------------------------------------- ks->Print("*****Assigns Operation***** "); /**////---------------------------------------------------------------------------- /// +Assigns /// @note: /// 1. Assigns是一种以标识替代绝对路径的技术，它对于应用程序的资源部署非常有用 /// 2. Assigns的变量都以nEnv类型存储在NOH体系的/sys/share/assigns/位置下 /// 3. /sys/share/assigns/home和/sys/share/assigns/bin是两个默认存在的变量， /// 分别是应用程序根和执行文件所在路径。 /// 4. 在设置完Assign路径后就可以通过"assign:filename"的形式来索引文件了。 /// // 两个默认的assigns nString home = pFileServer->GetAssign("home"); nString bin = pFileServer->GetAssign("bin"); nString user = pFileServer->GetAssign("user"); nString temp = pFileServer->GetAssign("temp"); ks->Print("home: %s ", home.Get()); ks->Print("bin : %s ", bin.Get() ); ks->Print("user: %s ", user.Get()); ks->Print("temp: %s ", temp.Get()); // 设置proj索引 pFileServer->SetAssign("proj", "d:/"); nString proj = pFileServer->GetAssign("proj"); ks->Print("proj: %s ", proj.Get()); /**//// /// -Assigns ///---------------------------------------------------------------------------- ks->Print("*****File W/R Operation***** "); /**////---------------------------------------------------------------------------- /// +File Operation /// // get nFile object nFile* file = pFileServer->NewFileObject(); // open file for write file->Open("bin:T02.txt", "w"); // write file nString output("T02 FileWriteTest!"); file->Write(output.Get(), output.Length()); // close file for write file->Close(); // open file for read file->Open("bin:T02.txt", "r"); // read file content char buf[512]; int readCount = file->Read(buf, sizeof(buf)); buf[readCount] = 0; // log content nString absPath = pFileServer->ManglePath("bin:T02.txt"); ks->Print("Read File from: %s ", absPath.Get()); ks->Print("File Content: %s", buf); // close file for read file->Close(); // release nFile object file->Release(); /**//// /// -File Operation ///---------------------------------------------------------------------------- /// 销毁KernelServer n_delete(ks); getchar(); return 0;}/**//// -Application///----------------------------------------------------------------------------如果您非常迫切的想了解IT领域最新产品与技术信息，那么订阅至顶网技术邮件将是您的最佳途径之一。
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