Createfilemapping mapviewoffile I am also learning how to use open, mmap on Linux and CreateFileA, CreateFileMapping, MapViewOfFile on Windows. So here is what I have tried in vain, char* Read(char*pFilename, int id) { HANDLE hFile = ::CreateFile(pFilename, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, The MapViewOfFile and MapViewOfFileEx functions use the file mapping object handle returned by CreateFileMapping to create a view of the file or a portion of the file in the process's virtual address space. Suppose I have a file on disk and then create its handle using CreateFile, its mapping object using CreateFileMapping, its mapping view using MapViewOfFile. These functions gave me a HANDLE to the mapped file and a pointer to the mapped data but I have no clue how to execute the mapped binary. Sort of like copy-on-write, but other processes are doing the write. This map needs to be I didn't really follow all the details of the example in wikipedia. So far, I managed the mapping using CreateFileMapping and MapViewOfFile. MapViewOfFile() no longer works after process hits the 2GB limit. – Ryan Mann. Furthermore, pointers pointing to local addresses will not be accessible any other process. " VS "I am an original Londoner. To read from a file view, dereference the pointer returned by the MapViewOfFile function as shown in the examples below. Commented Dec 6, 2011 at 3:26. How can I expand the memory and add some characters to the memory and have it saved to that file? I have already opened the file with appropriate modes (fmOpenReadWrite, PAGE_READWRITE), and if I overwrite the characters, it gets saved to Note that mmap() combines the functions of CreateFileMapping() and MapViewOfFile(). By using the PAGE_READWRITE flag, the process has read/write permission to the memory through any file views that are created. Yes, MapViewOfFile returns the virtual memory base address where the image has been loaded. This To have a mapping with executable permissions, an application must call CreateFileMapping with either PAGE_EXECUTE_READWRITE or PAGE_EXECUTE_READ, and then call MapViewOfFile with FILE_MAP_EXECUTE | FILE_MAP_WRITE or FILE_MAP_EXECUTE | FILE_MAP_READ. Use a larger number for Dear friends, I need your help. Why MapViewOfFile doesn't fail? 3. Then both processes will have mapped pointers to the same physical data in memory. The start of the file address in virtual memory is held in pointer StartPtr which was returned by MapViewOfFile function. And for 32 bit it is 2GB. In 1 instance I've assumed that the shared memory will always exist in the context of a method. Therefore, to fully close a file mapping object, an application must unmap all mapped views of the file mapping object by calling UnmapViewOfFile and close the file mapping object To have a mapping with executable permissions, an application must call CreateFileMapping with either PAGE_EXECUTE_READWRITE or PAGE_EXECUTE_READ, and then call MapViewOfFile with FILE_MAP_EXECUTE | FILE_MAP_WRITE or FILE_MAP_EXECUTE | FILE_MAP_READ. 本文介绍如何使用CreateFileMapping,MapViewOfFile创建内存映射文件，如何向内存映射文件中写入数据，读取数据。 C++使用内存映射文件入门 - 玉开 - 博客园 会员 Concerns using Shared Memory with CreateFileMapping and MapViewofFile. The contents of the file is loaded into RAM whose memory address is data corresponding to the line const char* data. Because of this, an application running in an arbitrary Remote Desktop Session Host (RD Session Host) server session must have SeCreateGlobalPrivilege enabled in order to create a file In this article. The following C++ statements are used for MMF: When I use MapViewOfFileEx() to create a map file view of a shared memory file it returns a NULL handle. Commented Aug 10, 2015 at 18:15. and mapped view is 2KB. C++ MapViewOfFile fails. The writer maps the handle with MapViewOfFile in FILE_MAP_WRITE mode. 4. I have no luck to implement array sharing and I think i don't want to use IPC method yet. Is there any limitation for using MapViewOfFile? 1. You can't find What I want is to memory-map a snapshot of the file at the time I call CreateFileMapping or MapViewOfFile, so that I don't see any changes (writes or deletes) made to the file by other processes. That's the limit on what you can map later with MapViewOfFile. Thanks for CreateFileMapping MapViewOfFile. It copies the shellcode from a local buffer into the view using memcpy. You call CreateFileA, which explicitly uses the multibyte string API (i. named shared memory between two processes. . After the writer has done its job, the handle is duplicated into any number of interested readers. You have to give the mapping object a unique name so both processes can share the same mapping object. Any raw pointer member (and virtual memory table if any) will not be recommended to be stored in mapped 共有メモリは、CreateFileMapping()関数で共有メモリをオープンして、MapViewOfFile()関数でメモリにマッピングして利用します。 (CHAR*)::MapViewOfFile( hSharedMemory // ファイルマッピングオブジェクトのハンドル , FILE_MAP_WRITE // アクセスモード( FILE_MAP_WRITE/ FILE_MAP_READ Create the file mapping (CreateFileMapping) Map a view of the mapping (MapViewOfFile) At the point of the file mapping creation, the size of the map is fixed, and there isn’t a way to “grow” the mapping. MapViewOfFile requires as parameters the handle of the memory mapped file, some attributes and offsets, and the size of the data (again). And we can clearly see in your main() function that it calls access_pid_from_memory() first (which attempts to open the memory map and then closes it), and then afterwards calls write_pid_to_memory() (which creates the memory map and then Hello fellow developers, I'm trying to map an executable binary file on Windows and then to execute the mapped file. Finally m_p = *phMapping = and the like look suspicious to me. We named our segments “Global\Something” and all was well. – Remy Lebeau. After reading more into MapViewOfFile it seems that this is mapped in the programs virtual address space. The solution depends on whether you use file mapping object is backed by the operating system paging file (the hFile parameter is INVALID_HANDLE_VALUE), or by some file on disk. 2. So I've saved the return value of MapViewOfFile as a pointer and closed the handle to the mem and am just using the pointer to the shared mem (but still locking access to it). ) fopen and fread from CRT. Then I create a file mapping using m_handle = CreateFileMapping(m_hFile, NULL, protectionFlags, 0, size, NULL);. Ask Question Asked 11 years, 4 months ago. It doesn't matter how large I make the file, be it 1MB or 1) CreateFileMapping 2) MapViewOfFile ===== ===== MapViewOfFile Function Maps a view of a file mapping into the address space of a calling process. In Windows Server 2012, this function is Its not going to work the way you are doing it at the moment. The std::vector will allocate memory from the calling process, which will not be accessible via any other process. So MapViewOfFile normally just chooses an address where it can fit the file view's bytes continuously in memory. Why does MapViewOfFile fail with ERROR_ACCESS_DENIED? 4. NOTE: This example is intended for use only under Windows NT, and was written and tested using Windows NT 4. As you can see MapViewOfFile() fails with 8 even after releasing all memory that was allocated. I used the following command to allocate a shared memory hFileMapping = CreateFileMapping(INVALID_HANDLE_V hMapping = CreateFileMapping(hFile, NULL, PAGE_READONLY, NULL, Created a view and assigned it to a pointer: char * str = (char *)MapViewOfFile(hMapping, FILE_MAP_READ, NULL, NULL, NULL); And steps (1) to (3) work as they should. It then calls MapViewOfFile to map a view of the section object into the current process, see Figure 15b. In Delphi 7, I open a file with CreateFileMapping then get a pointer by using MapViewOfFile. Attempting to share a std::vector using shared memory is almost certainly wrong. Hot Network Questions "I am a native Londoner. Here, we created a new file object with handle as The first process creates the file mapping object by calling the CreateFileMapping function with INVALID_HANDLE_VALUE and a name for the object. Memory Mapped File Code Not Working Correctly in C++. OP: What is your goal, to share with what? Could you please provide more information? Also, make up your mind about whether you want to use explicit linkage or the legacy TCHAR system. CreateFile, CreateFileMapping, MapViewOfFile, etc. If you have (cygwin) bash shell, you can see the same hexadecimal I have to read some data line by line from a large file (more than 7GB), it contains a list of vertex coordinates and face to vertex connectivity information to form a mesh. again GetLastError() plays here with us a cruel joke. However, this . MapViewOfFile() failed. File mapping opening (Windows) 0. However you don't need to call them more than that The first process creates a named file mapping object backed by the page file. Starting in Windows 10, version 1703, the MapViewOfFile function maps a view using small pages by default, even for file mapping objects created with the SEC_LARGE_PAGES flag. Learn more. Then the process uses the file mapping object handle that CreateFileMapping returns in a call Create the file mapping (CreateFileMapping) Map a view of the mapping (MapViewOfFile) At the point of the file mapping creation, the size of the map is fixed, and there isn’t a way to “grow” the mapping. e. Are we supposed to know what CreateFileMapping and MapViewOfFile are? – Jonathan Mee. I am using a shared memory map for inter-process communications. Starting in Windows 10, version 1703, the MapViewOfFile function maps a view using small pages by default, even for file mapping objects created with Opition A: For each process to call CreateFileMapping once for the entire file and then use MapViewOfFile multiple times on different sections to access the parts it needs, meaning if I have 10 sections I wish to access I will call CreateFileMapping once for the whole file, end to end, and then MapViewOfFile 10 times, once for each part of the The case of the unexpected ERROR_ACCESS_DENIED when calling MapViewOfFile; December 5th, 2016 . I'm able to create and manage the shared memory but when trying to share an array of structs the size of the array is always 0 upon reading. 8. 3 Memory Mapped Files - Map a structure not a file? 2 What is the correct way of using I found a way to share pointer using OpenFileMapping and MapViewOfFile. In this and later OS versions, you must specify the FILE_MAP_LARGE_PAGES flag with the MapViewOfFile function to map large pages. 5. CreateFileMapping, MapViewOfFile, handle leaking c++. I have a set of Win32 applications that share information using a shared memory segment created with CreateFileMapping() and MapViewOfFile(). Is there any limitation for using MapViewOfFile? 3. Values provided by writer are never zero. In this scenario, the function is equivalent to the MapViewOfFile function. 1 @JonathanMee: Functions of the WinAPI: CreateFileMapping and MapViewOfFile. Then the process uses the file mapping object handle that cout<< "CreateFileMapping and MapViewOfFile program run time is" <<timeend-timebegin<<endl; When the test creates and opens a file map, it always gets an "invalid handle" error, and after looking at MSDN, it finds out that the function is not known, and translates the relevant explanations. – ivan_pozdeev Both communicate through memory allocated by CreateFileMapping + MapViewOfFile. Remap MapViewOfFile while keeping the same address. Additionally, you would need to coordinate access to the std::vector using a mutex, I'm trying to understand how exactly i should extract MapViewOfFile's return buffer size. the MapViewOfFile got it when not all bytes within the maximum size specified by CreateFileMapping The creation of a file-mapping object in the global namespace, by using CreateFileMapping, from a session other than session zero is a privileged operation. These functions fail if the access flags conflict with those specified when CreateFileMapping created the file mapping object. Hot Network Questions Is it possible that the committee contacts only one reference while applicants need to provide two? invoke CreateFileMapping,ebx,NULL,SEC_IMAGE+PAGE_EXECUTE_READWRITE,NULL,NULL,NULL mov ebx,eax invoke MapViewOfFile,ebx,FILE_MAP_ALL_ACCESS,NULL,NULL,NULL I need see the code of the program sgb. #pragma data_seg(". To use shared memory this way, at least one process Concerns using Shared Memory with CreateFileMapping and MapViewofFile. Mapping large files using MapViewOfFile. Both work relativelly fast. Are you SURE you are opening a mapping object that was created with write permissions? Are you calling CreateFileMapping() and OpenFileMapping() in separate processes? If not, you shouldn't be using them together at all, let alone giving the mapping object a name. CreateSharedMemory usage. Commented Oct 13, CreateFileMapping MapViewOfFile. Is it (const Name: String): THandle; begin Result := CreateFileMapping(INVALID_HANDLE_VALUE, nil, PAGE_READWRITE, 0, BUF_SIZE, PChar(Name)); Win32Check(Result Concerns using Shared Memory with CreateFileMapping and MapViewofFile. I am trying to open an already existing encrypted file by passing OPEN_EXISTING to the method CreateFile(). Note. – caf. The second process opens the file mapping object by name, and then maps a view of that file Map a view of the mapping (MapViewOfFile) At the point of the file mapping creation, the size of the map is fixed, and there isn’t a way to “grow” the mapping. You also have to make sure that the mapping returned by CreateFileMapping() is large enough to accomodate the entire byte range being viewed or else the view will fail. Both work async. If, before calling CreateFileMapping function, I use ReadFile to read some bytes N, I am trying to use combination of functions CreateFileMapping , MapViewOfFile, FlushViewOfFile. ABC") __declspec (dllexport) char buffer[10000] = {0}; #p MapViewOfFile return ERROR_ACCESS_DENIED. If it is not, MapViewOfFile fails. on the CreateFileMapping() and MapViewOfFile() - which the discussion thread does not use, as well i am not using the Get/Set WorkingSetSize() the persistent problem is any inclusion/use of above 2) I use MapViewofFile to get a pointer to the mem. I want to share array of char so part of my code is: HANDLE hBuffer = CreateFileMapping(INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE, 0, size, bufferName); char * buffer = (char *) MapViewOfFile(hBuffer, FILE_MAP_ALL_ACCESS, 0, 0, One additional thing to watch for: it looks like your producer creates the mapping, maps, writes, then unmaps+closes. Use MapViewOfFile to create a shared memory block, then placement new a class object on this block? 2. The CreateFileMapping and OpenFileMapping functions return this handle. sys) instead of a file in the file system, see Figure 15a. That is why CreateFileMapping() and MapViewOfFile() allow you to specify sizes and offsets for mapping. in such scenario, i want to write the total buffer to The first process creates the file mapping object by calling the CreateFileMapping function with INVALID_HANDLE_VALUE and a name for the object. Add a comment | Your Answer Reminder: Answers generated by artificial intelligence tools are not allowed on Stack Overflow. 3 Is there any limitation for using MapViewOfFile? 2 Regarding memory mapped files and usage in large file text editor. Reading from or writing to a file view of a file other than the page file can cause an EXCEPTION_IN_PAGE_ERROR exception. For example, accessing a mapped file that resides on a remote server can generate an exception LastError: 8 Memory is deallocated. Memory Mapped Files - Map a structure not a file? 0. Both Linux and Windows versions are 64bit compiled. CreateFileMapping MapViewOfFile. invoke CreateFileMapping,ebx,NULL,SEC_IMAGE+PAGE_EXECUTE_READWRITE,NULL,NULL,NULL mov ebx,eax invoke MapViewOfFile,ebx,FILE_MAP_ALL_ACCESS,NULL,NULL,NULL I need see the code of the program sgb. Even though MapViewOfFile() reports ERROR_NOT_ENOUGH_MEMORY we can call malloc() successfully. The value (content) of this address depends on whether the image has been successfully loaded at its predefined address (which has been setup by the linker) or whether the image has been relocated (because the desired, predefined address is already occupied or In principle, you can use placement new operator (void* operator new (std::size_t size, void* ptr) throw();) to create an object in an already allocated memory buffer. " What are the main views on the question of the relation between logic and human cognition? Win32 memory mapped files (i. Mapped file not displaying info. Are MapViewOfFile memory mappings reused? 0. The first process creates the file mapping object by calling the CreateFileMapping function with INVALID_HANDLE_VALUE and a name for the object. LastError: 8 The 64783th malloc() returned NULL. From the documentation for MapViewOfFile:. I don't 課題 メモリに空き領域があっても、600M 超のファイルを開くことができない 長時間 xyzzy を起動していると、400M 程度のファイルも開くことができない 原因 ファイルを開くときは以下のように処理している CreateFileMapping MapViewOfFile でファイルの内容をすべてメモリにマッピング マップした内容 It uses CreateFileMapping to create a file mapping that is backed by the Windows system paging file (C:\pagefile. MapViewOfFileEx can be used to specify a base address so maybe you could use a similar technique. However, creating objects in file mapping regions should be applied for POD objects. Here is the source code of the initialization section, executed every time the DLL is loaded into a new process space (that is, once for each application that uses the DLL): var hMapFile: THandle; const I have a series of Slave exe's controlled by a Master exe via usage of Named Shared Memory created with CreateFileMapping() and MapViewOfFile(). Why does MapViewOfFile fail with ERROR_ACCESS_DENIED? 0. I was debugging the Master via Visual Studio, and when I got what I needed I simply told In MapViewOfFile(), FILE_MAP_ALL_ACCESS is equivalent to FILE_MAP_WRITE. Commented Jun 9, 2017 at 13:13. 1. Concerns using Shared Memory with CreateFileMapping and MapViewofFile. I use MMFs to access multi-GB files, you definately have to keep the size of the mapping to a minimum, just slide the view around where you need it. Although MapViewOfFile works with remote files, it does not keep them coherent. specifies that when a view of the file is mapped into a CreateFileMapping MapViewOfFile. HANDLE CreateFileMapping (HANDLE hfile,//physical file To have a mapping with executable permissions, an application must call CreateFileMapping with either PAGE_EXECUTE_READWRITE or PAGE_EXECUTE_READ, and then call MapViewOfFile with FILE_MAP_EXECUTE | FILE_MAP_WRITE or FILE_MAP_EXECUTE | FILE_MAP_READ. This is clearly explained and demonstrated I found that under Windows I need to use CreateFileMapping and MapViewOfFile functions. AFAICT they'll try to write to address 0. PROBLEM: reader gets zero values from time to time. exe, the EAX register gets the value 0x380000 when call First Process. According to msdn I should be able to create a filemap, map the view of the file and close the handle I received from CreateFileMapping and the MapViewOfFile will keep my The MapViewOfFile and MapViewOfFileEx functions use the file mapping object handle returned by CreateFileMapping to create a view of the file or a portion of the file in the process's virtual To have a file with executable permissions, an application must call CreateFileMapping with either PAGE_EXECUTE_READWRITE or PAGE_EXECUTE_READ, and then call MapViewOfFile Steps to create a file mapping object and file view. And I am absolutelly sure that it is not what writer provided. The buffer must be large enough to contain the minimum size of a large page. Is there any limitation for using MapViewOfFile? 5. For a 64 bit machine I am reading the max size is 2^64 bytes (16 exabytes). Allocate Static Shared Memory using MapViewOfFile. I'm guessing you defined BUF_SIZE as a constant 4096 somewhere, so that's the limit on what MapViewOfFile can map. If a file mapping object is backed by the paging file (CreateFileMapping is called with the hFile parameter set to INVALID_HANDLE_VALUE), the paging file must be large enough to hold the entire mapping. 0. – If you google "CreateFileMapping" and "MapViewOfFile" it will lead you to the MSDN documentation for those Windows API functions, as they are part of the Windows API. Declaring them w/o a type identifier is a bad idea too: the default type is int while HANDLE is typically PVOID - the address arithmetic is different. To specify a suggested base address for the view, use the MapViewOfFileEx function. In this case, you use file mapping object is backed by the operating system paging file, you need use the SEC_RESERVE flag:. ANSI), and one hopes that pFileName is a byte string. Your logging clearly shows [access_pid_from_memory] occurs before [write_pid_to_memory]. For example, if two computers both map a file as writable, and both change the same page, each computer only sees its own writes to the page. exe, the EAX register gets the value 0x380000 when call Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company I need to share about 10 MB of data between two processes. bmp file to another process (dialog box) and display it there, using MMF(Memory Mapped File) But the problem is that image displays in reversed colors and upside down. example buffer is 50KB. the initial status is not STATUS_ACCESS_DENIED how we can wait, but STATUS_INVALID_VIEW_SIZE. By using the PAGE_READWRITE flag, The following example uses the Win32 functions CreateFileMapping, MapViewOfFile and UnmapViewOfFile to use the Windows NT pagefile as a memory-mapped file and pass a string You will definitely need to call CreateFileMapping and MapViewOfFile at least once per process in order to access the data. Using MapViewOfFile, pointer eventually walks out of memory space. the total buffer size is more than the mapped view. File map objects exists only while some process holds an open handle to it, so once producer closes its handle, poof! - the mapping is gone, and there won't be anything for consumer to open later. 0. Issues with the size of the shared file mapping object in C++ code. I built this class from the msdn example here and it works fine, until it tries to gather data from a position over halfway through the file. Therefore 2) I use MapViewofFile to get a pointer to the mem. MapViewOfFile sending an integer to child process. The case of the unexpected ERROR_ACCESS_DENIED when calling MapViewOfFile HANDLE fileMapping = CreateFileMapping( INVALID_HANDLE_VALUE, // backed by page file nullptr, // default security @Frankoo Both processes have to call MapViewOfFile() to map the same memory mapping object from CreateFileMapping(). In Windows Server 2012, this function is How can I allocated shared memory to a static buffer like the following but using CreateFileMapping and MapViewOfFile. I need to send . this status also converted to ERROR_ACCESS_DENIED. If you put a breakpoint, and use the memory viewer of Visual Studio and enter the memory address denoted by data, you will see the hexadecimal view of the content of the file. Win 32 or boost memory map access. LPVOID MapViewOfFile( HANDLE hFileMappingObject, DWORD dwDesiredAccess, DWORD dwFileOffsetHigh, DWORD dwFileOffsetLow, SIZE_T dwNumberOfBytesToMap ); // Can be used as void* p = ::MapViewOfFile(hFileMapping, FILE_MAP_ALL_ACCESS, 0, param1, param2); Step 4: Cleaning up You can imagine MapViewOfFile as a malloc+memcpy of the file you are opening, nothing more (under the hood it is the reverse: malloc can use a slab'ed memory mapping). However, when I try to apply strtok() in the following manner, for example: char * pch; The following example uses the Win32 functions CreateFileMapping, MapViewOfFile and UnmapViewOfFile to use the Windows NT pagefile as a memory-mapped file and pass a string between two copies of Visual FoxPro. Then you use the CreateFileMapping macro instead of explicitly calling CreateFileMappingW (wide-character API), and one hopes You called CreateFileMappingW with BUF_SIZE as the low order DWORD size (with the high order DWORD being 0, so BUF_SIZE is the total number of bytes). Allocated memory: 2024 MB Memory is deallocated. I have a very large file that I would like to use CreateFileMapping and MapViewOfFile to extract 10 bytes of text from it based on a given identifier number. I thought that memory mapped file technique could be faster than CRT functions, but some tests showed that the speed is almost the same in both cases. As another CreateFileMapping, MapViewOfFile, handle leaking c++. Reference counting issue of MapViewOfFile on Windows. Modified 7 years, 7 months ago. While it is possible to specify an address that is safe now (not used by the operating system), there is no guarantee that the address will remain safe over time. MSDN says. Example of Win32 API memory mapping functions usage: CreateFileMapping and MapViewOfFile - RIscRIpt/winapi_ex_mmap Global namespace CreateFileMapping and SeCreateGlobalPrivilege. Shared data Filemapping. Step 1: Create or open a file object that represents the file on the disk. In Windows Server 2012, this function is supported by the following The server creates an unnamed file-backed mapping with CreateFileMapping with PAGE_READWRITE protection, then duplicates the handle into the writer. 価値 意味; file_map_copy: ファイルの書き込み時のコピー ビューがマップされます。 ファイル マッピング オブジェクトは、page_readonly、page_execute_read、page_writecopy、page_execute_writecopy、page_readwrite、または page_execute_readwrite 保護を使用して作成されている必要があります。 Why CreateFileMapping and MapViewOfFile, instead of just one function, combining the functionality of the two? 2. I'm trying to share an array of structs through shared named memory using the WINAPI. One of the applications is a system service; the remainder are started by the logged-in user. With that in mind, you map memory in Windows using CreateFileMapping and MapViewOfFile, however MapViewOfFile does not allow you to specify a base address for the mapping. On Windows XP, there was no problem. The following example uses the CreateFileMapping function with the SEC_LARGE_PAGES flag to use large pages. In the first process, I do something similar to: HANDLE hBuffer = CreateFileMapping(INVALID_ HANDLE_VAL UE, NULL, PAGE_READWRITE, 0, 10000000,"This is a test"); // <- Check for errors void *buffer = MapViewOfFile(hBuffer,FILE _MAP_WRITE, 0, 0, 0); // <- Check for errors // <- Write From CreateFileMapping: Mapped views of a file mapping object maintain internal references to the object, and a file mapping object does not close until all references to it are released. 3. The mapped memory will contain n & m and the internal structure of the vector class which will probably be a couple of pointers, depending on your STL implementation. As another quirk, if you set the mapping size to be larger than the file itself, the file immediately grows to accommodate the mapping size. [in] dwDesiredAccess. Viewed 4k times 2 . kpwzot qldgih xfjv fhdg njza wqcq uqe ubpgpe hpnj krsigkc