select-function

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linux: stdin causes select to return when I don't want it to

I have a problem with select returning when there is something on stdin, even though I don\'t want it to. For example here is a code that is meant to wait for data on a socket for a certain amount of[详细]

2023-03-18 10:55 分类：问答
Open /dev/ttyUSB* when it becomes present

I have a program that will always be running when the computer is. It interfaces with serial over USB device. At times the device may not be present when the computer is on.[详细]

2023-03-15 04:09 分类：问答
How to use select() to read input from keyboard in C

I am trying to use select() to read keyboard input and I got stuck in that I do not know how to read from keyboard and use a file descriptor to do so. I\'ve been told to use STDIN and STDIN_FIL开发者_[详细]

2023-03-14 17:45 分类：问答
Select (Linux) function always returns 0

Select function in my case always returns zero, which is timeout and this is happening continuosly so my CPU usage also going upto 98 % for my process. I have also tried to set NULL instead of seting[详细]

2023-03-06 22:25 分类：问答
select() timeout of 3s even on ICMP port unreachable

When I try to connect to a server with a non blocking socket (so that i can use select() with a timeout parameter) i realized that on a connect to a port which is blocked by iptables with -j REJECT th[详细]

2023-03-01 14:23 分类：问答
select() times out immediately after long runtime (C++)

Most of the time this code works just fine. But sometimes when the executable has been running for a while, select() appears to time out immediately, then get into a weird state where it keeps getting[详细]

2023-02-21 04:15 分类：问答
C, socket programming: Connecting multiple clients to server using select()

I\'m trying to make a server that can be connected to by multiple clients. Here\'s my code so far: Client:[详细]

2023-01-25 05:17 分类：问答
Select behavior

It could probably be a simple question but I couldn\'t find a clear answer for it. I have multiple threads in c code and one of them uses select to wait for n seconds. The question that I have is that[详细]

2023-01-07 09:15 分类：问答
C socket programming: select() is returning 0 despite messages sent from server

I\'m using select() to recv() messages from server, using TCP/IP.When I send() messages from the server, it returns a reasonable number of bytes, saying it\'s sent successful. And it does get to the c[详细]

2022-12-31 03:51 分类：问答
select failing with C program but not shell

I have a parent and child process, and the parent can read output from the child and send to the input of the child. So far, everything has been working fine with shell scripts, testing commands which[详细]

2022-12-28 18:21 分类：问答