writefile

Writing synchronously to a file opened with FILE_FLAG_OVERLAPPED

由 泪湿孤枕 提交于 2019-12-10 20:57:22
问题 I have opened a file using HANDLE handle= CreateFileW( fileName, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_FLAG_OVERLAPPED, NULL); The file handle is then used for asynchronous read operations: ReadFile(handle, buffer, 1, NULL, &overlapped); This works. However, I want to do a synchronous write now. WriteFile documentation states that If hFile was opened with FILE_FLAG_OVERLAPPED, the following conditions are in effect: • The lpOverlapped parameter must point to a valid and

numpy array2string applied on huge array, skips central values, ( … in the middle )

由 五迷三道 提交于 2019-12-10 14:14:42
问题 I have array of size (3, 3, 19, 19), which I applied flatten to get array of size 3249. I had to write these values to file along with some other data, so I did following to get the array in string. np.array2string(arr.flatten(), separator=', ', suppress_small=False) However when I checked the content of the files after write, I noticed that I have ,... , in the middle of the array as following [ 0.09720755, -0.1221265 , 0.08671697, ..., 0.01460444, 0.02018792, 0.11455765] How can I get

How can write a column in tsv file using node js?

由 廉价感情. 提交于 2019-12-08 10:08:28
问题 I have to write a json response in a column of tsv file how can I do that? I am using the following code. Please find me a solution? I have to check it but its not working. //npm init -y gen package.json file var unProcessedItems = []; var data = loadData('./Alabama_Pre_Final.tsv'); async function X(i) { if (data[i] && data[i][7]) { console.log(data[i][7]); function address(address_details) { request({ url: 'https://us-extract.api.smartystreets.com/?auth-id=xxx&auth-token=xxx', method: 'POST'

WriteFile with Windows Sockets returns invalid parameter error

由 前提是你 提交于 2019-12-08 01:57:37
问题 I've been struggling with Windows Sockets for two days not being able to just use write to socket as in Linux it is. I want to write my own shellcode and I'm playing around how to redirect stdout, stdin to socket handle (that's where my playings come from). I use Windows 7 x64, build 7601 if it's necessary. Here's my code #include <windows.h> #include <stdio.h> #include <stdlib.h> #include <stdbool.h> int main (int argc,char ** argv) { // boring code starts if (argc < 2) { printf("Usage

WriteFile with Windows Sockets returns invalid parameter error

由 有些话、适合烂在心里 提交于 2019-12-06 11:22:53
I've been struggling with Windows Sockets for two days not being able to just use write to socket as in Linux it is. I want to write my own shellcode and I'm playing around how to redirect stdout, stdin to socket handle (that's where my playings come from). I use Windows 7 x64, build 7601 if it's necessary. Here's my code #include <windows.h> #include <stdio.h> #include <stdlib.h> #include <stdbool.h> int main (int argc,char ** argv) { // boring code starts if (argc < 2) { printf("Usage getstdhandle <ip> <port> "); } WSADATA wsadata; int result = WSAStartup (MAKEWORD(2,2),&wsadata); if (result

problem writing a NSMutableArray to file in cocoa

由 匆匆过客 提交于 2019-12-04 13:47:40
问题 A real beginners question. I have a NSView subclass in which I create a NSMutableArray containing NSValues. When I want to write the array to a file using writetofile:atomatically: the file is created but it contains none of the NSValues that the mutable array does contain. Does anyone know how I successfully can write this mutable array to a file? Thanks 回答1: NSValues can't be saved in a plist (which is what writeToFile:atomically: does). Take a look here for the values you can save.

LPOVERLAPPED_COMPLETION_ROUTINE is incompatible with function

由 旧城冷巷雨未停 提交于 2019-12-04 06:27:53
问题 I want to asynchronously write data to file using WriteFileEx from winapi , but I have a problem with callback. I'm getting follow error: an argument of type "void (*) (DWORD dwErrorCode, DWORD dwNumberOfBytesTransfered, LPOVERLAPPED lpOverlapped)" is incompatible with parameter of type "LPOVERLAPPED_COMPLETION_ROUTINE" What am I doing wrong? Here is code: // Callback void onWriteComplete( DWORD dwErrorCode, DWORD dwNumberOfBytesTransfered, LPOVERLAPPED lpOverlapped) { return; } BOOL

LPOVERLAPPED_COMPLETION_ROUTINE is incompatible with function

由 淺唱寂寞╮ 提交于 2019-12-02 09:34:39
I want to asynchronously write data to file using WriteFileEx from winapi , but I have a problem with callback. I'm getting follow error: an argument of type "void (*) (DWORD dwErrorCode, DWORD dwNumberOfBytesTransfered, LPOVERLAPPED lpOverlapped)" is incompatible with parameter of type "LPOVERLAPPED_COMPLETION_ROUTINE" What am I doing wrong? Here is code: // Callback void onWriteComplete( DWORD dwErrorCode, DWORD dwNumberOfBytesTransfered, LPOVERLAPPED lpOverlapped) { return; } BOOL writeToOutputFile(String ^outFileName, List<String ^> ^fileNames) { HANDLE hFile; char DataBuffer[] = "This is

WriteFile returning error 1784

由 时间秒杀一切 提交于 2019-12-02 03:29:03
问题 I am creating a program to populate a disk with a dummy file system. Currently, I am writing files of variable sizes using WriteFile . WriteFile(hFile, FileData, i * 1024, &dwWrote, NULL); err = GetLastError(); err returns #1784 which translates to The supplied user buffer is not valid for the requested operation. ERROR_INVALID_USER_BUFFER So for the first 24 files, the write operation works. For file #25 on, the write operation fails. The files are still created but the WriteFile function

WriteFile returning error 1784

由 大城市里の小女人 提交于 2019-12-02 00:30:23
I am creating a program to populate a disk with a dummy file system. Currently, I am writing files of variable sizes using WriteFile . WriteFile(hFile, FileData, i * 1024, &dwWrote, NULL); err = GetLastError(); err returns #1784 which translates to The supplied user buffer is not valid for the requested operation. ERROR_INVALID_USER_BUFFER So for the first 24 files, the write operation works. For file #25 on, the write operation fails. The files are still created but the WriteFile function does not populate the files. Any ideas on how to get past ERROR_INVALID_USER_BUFFER ? Every reference I
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