Usually on linux when we wish to use epoll, we first create a epfd, and then register fd and events to it. Above is a common example I found from internet. It works, but problem is: ev.data.fd=fd here I already have my “fd” assigned to ev structure. epoll_ctl still requires the 3rd parameter of this fd. While the 4th parameter
Tag: parameters
Does linux “gdb a.out param1 param2” pass param1 and 2 to “gdb” or “a.out”?
Is there any case that param1 and param2 are passed to gdb, and some cases passed to a.out, and some cases, 1 for each? How does linux shell parse and decide which param for which program? Thanks. Answer How does linux shell parse and decide which param for which program? Linux shell simply passes all params to gdb. It’s gdb
Python how to pass in an optional filename parameter when running a script to process a file
I have a python script that processes an XML file each day (it is transferred via SFTP to a remote directory, then temporarily copied to a local directory) and stores its information in a MySQL database. One of my parameters for the file is set to “date=today” so that the correct file is processed each day. This works fine and