Let's read the Linux socket source code скачать в хорошем качестве

Let's read the Linux socket source code

In this live stream, we look at the source code for Linux's implementation of the Berkeley socket API. We also look at "socks" (no "et"), which seem to contain the lower-level implementation details for "sockets". In a now time-honored tradition, I confuse the right and left shift operators. And @Raxneff Nextnerf and others help me out with some of the thornier details in the code. Along the way, we take a detour to learn a bit about how to optimize C structs for cache locality. Useful links: Socket.h: https://github.com/torvalds/linux/blo... Socket.c: https://github.com/torvalds/linux/blo... Sock.h: https://github.com/torvalds/linux/blo... Sock.c: https://github.com/torvalds/linux/blo... Related videos: Linux kernel:    • Let's read the Linux kernel source code   TCP:    • Let's read the Linux TCP source code   Sorry about the harsh sound on this video, I accidentally plugged my microphone into the wrong channel 🤦‍♂️. Thanks for watching :) ‪@raxneff‬ put together the following timeline: 00:00:15 What this live show is about 00:03:28 socket.c 00:05:06 includes in socket.c 00:07:30 opening files 00:13:44 socket address families in socket.h 00:15:35 protocol families in socket.h 00:16:25 flags for send/recv in socket.h 00:17:13 setsockoptions level in socket.h 00:11:54 basic functions in socket.h 00:18:33 sockaddr in socket.h 00:19:32 sockaddr_storage in socket.h 00:20:02 msghdr in socket.h 00:24:06 Linux socket API 00:26:35 for_each_cmsghdr in socket.h (PLEASE, do not touch) 00:29:04 msg_data_left in socket.h 00:32:04 control message types in socket.h 00:32:49 recvmsg in socket.h 00:35:36 sendmsg lookup man page 00:38:49 What I think sock.h is about 00:39:23 includes in sock.h 00:40:34 SOCK_DEBUG in sock.h 00:41:04 socket_lock_t sock.h 00:42:59 sock_common struct in sock.h 00:49:22 SO_REUSEADDR lookup 00:43:10 for what the unions are used 00:53:03 tcp timewait lookup 00:55:51 sock.h (cont.) 00:56:07 sock structure in sock.h 00:58:45 we are in lower level land 01:02:11 sound issues 01:04:04 How ordering of elements in structs can help performance 01:09:18 back in sock.h 01:10:13 optimisation in sock.h and Google QUIC 01:15:04 CPU caches 01:22:09 further stuff in sock.h 01:23:11 sk_page_frag ... in sock.h 01:23:50 sk_pacing_shift_update and right-shift for ms 01:31:13 socket.c 01:32:30 file_operations ... in socket.c 01:34:22 spinlock in socket.c 01:34:40 support routines and audit_sockaddr in socket.c 01:35:17 sockfs_dname in socket.c 01:36:38 sock_alloc_file in socket.c 01:38:48 sock_sendmsg in socket.c 01:39:17 Linux Security Modules 01:39:53 socket.c (cont.) 01:40:35 __sock_recv_timestamp and more in socket.c 01:43:01 sock.c 01:43:03 includes in sock.c 01:45:20 sk_clear_memalloc in sock.c 01:46:26 timeout, netstamp, ... -stuff in sock.c 01:47:53 sk_setsockopt in sock.c 01:52:21 static_branch_unlikely lookup 01:56:45 outro and what comes next