io

Where is io.sockets.adapter.rooms in io of nodejs?

北慕城南 提交于 2021-01-28 01:52:41
问题 https://stackoverflow.com/a/6727354/462608 The short answer: io.sockets.adapter.rooms I analysed io: The sockets output part from io as shown in that answer contains the following: sockets: { manager: [Circular], name: '', sockets: { '210837319844898486': [Object] }, auth: false, flags: { endpoint: '', exceptions: [] }, _events: { connection: [Function] } }, Where is the adapter ? Where are the rooms ? What is the way to find out adapter and rooms from the output of io ? 回答1: I think you are

How to advance through data from the std::io::Read trait when Seek isn't implemented?

微笑、不失礼 提交于 2021-01-28 00:49:59
问题 What's the best way to read from a type implementing the std::io::Read trait when the contents of the output isn't important? Possible options I see are: Read single bytes in a loop. Allocate a potentially huge vector and read into that. Something in-between... read into a fixed sized buffer in a loop . The first 2 options don't seem ideal, the third is OK but inconvenient. Does Rust provide a convenient way to achieve this? 回答1: You can use io::copy(), Read::take() and io::sink() to discard

How to manually Lock a file for other applications

荒凉一梦 提交于 2021-01-27 05:23:27
问题 I have spent quite some time figuring out how to do this but did not find any usefull solution. Here is what I want to do. I am generating a huge binary file in my application. The tricky thing is that, the process requires me to occasionally close the FileStream. The problem now is, that occasionally other applications (i.e. my virus scanner) are using this brief moment where the file is not locked anymore, to lock the file itself. or other applications like dropbox etc... The result is,

How to manually Lock a file for other applications

假装没事ソ 提交于 2021-01-27 05:23:25
问题 I have spent quite some time figuring out how to do this but did not find any usefull solution. Here is what I want to do. I am generating a huge binary file in my application. The tricky thing is that, the process requires me to occasionally close the FileStream. The problem now is, that occasionally other applications (i.e. my virus scanner) are using this brief moment where the file is not locked anymore, to lock the file itself. or other applications like dropbox etc... The result is,

Reading from (Writing to) files in Dafny

三世轮回 提交于 2021-01-27 04:16:11
问题 I've been looking at some dafny tutorials and couldn't find how to read from (or write to) simple text files. Surely, this has to be possible right? 回答1: I have cooked up a very basic file IO library for Dafny based on code from the Ironfleet project. The library consists of two files: a Dafny file fileio.dfy declaring signatures for various file operations, and a C# file fileionative.cs that implements them. As an example, here is a simple Dafny program that writes the string hello world! to

Reading from (Writing to) files in Dafny

半腔热情 提交于 2021-01-27 04:15:56
问题 I've been looking at some dafny tutorials and couldn't find how to read from (or write to) simple text files. Surely, this has to be possible right? 回答1: I have cooked up a very basic file IO library for Dafny based on code from the Ironfleet project. The library consists of two files: a Dafny file fileio.dfy declaring signatures for various file operations, and a C# file fileionative.cs that implements them. As an example, here is a simple Dafny program that writes the string hello world! to

Binary file I/O

喜夏-厌秋 提交于 2021-01-26 23:51:54
问题 How to read and write to binary files in D language? In C would be: FILE *fp = fopen("/home/peu/Desktop/bla.bin", "wb"); char x[4] = "RIFF"; fwrite(x, sizeof(char), 4, fp); I found rawWrite at D docs, but I don't know the usage, nor if does what I think. fread is from C: T[] rawRead(T)(T[] buffer); If the file is not opened, throws an exception. Otherwise, calls fread for the file handle and throws on error. rawRead always read in binary mode on Windows. 回答1: rawRead and rawWrite should

Binary file I/O

流过昼夜 提交于 2021-01-26 23:51:35
问题 How to read and write to binary files in D language? In C would be: FILE *fp = fopen("/home/peu/Desktop/bla.bin", "wb"); char x[4] = "RIFF"; fwrite(x, sizeof(char), 4, fp); I found rawWrite at D docs, but I don't know the usage, nor if does what I think. fread is from C: T[] rawRead(T)(T[] buffer); If the file is not opened, throws an exception. Otherwise, calls fread for the file handle and throws on error. rawRead always read in binary mode on Windows. 回答1: rawRead and rawWrite should

How to read multiple text files in a folder with Python? [duplicate]

让人想犯罪 __ 提交于 2021-01-24 18:54:05
问题 This question already has answers here : How to open every file in a folder (6 answers) Closed 23 days ago . I have looked at multiple questions & answers across SO, as well as other platforms pertaining to reading text files in a folder, but unfortunately none seems to work for me at the moment. I have multiple text files in a folder and would like to read them all, and put each text file as a string into a new list new_list . path = "MyNews_AccidentDataset/News_txt.txt" all_files = os

How to compress alphanumeric strings?

让人想犯罪 __ 提交于 2021-01-22 08:53:41
问题 I want to shrink Strings like -1234B56789C;ABC1D3E/FGH4IJKL which are approx 20 - 25 case-insensitive chars. My goal is to have an alphanumeric string that is a maximum of 16 characters. They must remain human readable. Is that possible? Are there algorithms that can be used to compress alphanumeric string that also has some special chars? It must also be possible to revert the compression. 回答1: I think in general it's not possible unless you use a different target alphabet. As far as I