October 2018
Beginner
794 pages
19h 23m
English
Content preview from Hands-On System Programming with Linux
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Some glibc foo and foo_r APIs
The ctime(3), this being thread-unsafe, is now replaced by its thread-safe counterpart ctime_r(3); this is just one example of a generic trend in modern glibc:
- The older, thread (MT-unsafe) unsafe function is called foo
- Has a counterpart, the newer, thread (MT-Safe) safe foo_r API
To give the reader an appreciation of this, we enumerate some (not all!) of the glibc foo_r style of APIs:
|
asctime_r(3) crypt_r(3) ctime_r(3) drand48_r(3) |
getpwnam_r(3) getpwuid_r(3) getrpcbyname_r(3) getrpcbynumber_r(3) getrpcent_r(3) getservbyname_r(3) |
seed48_r(3) setkey_r(3) srand48_r(3) srandom_r(3) strerror_r(3) strtok_r(3) |
|
getdate_r(3) getgrent_r(3) getgrgid_r(3) getgrnam_r(3) gethostbyaddr_r(3) gethostbyname2_r(3) ... |
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.