My IRC chatbot – SeeBorg.

My dance music podcast.

• close(2) with enabled SO_LINGER results in block even if socket is nonblocking, blocks for 'linger_timeout' at most.
• To fix iosnoop dynamic variable drops, edit it and add this:

  #pragma D option dynvarsize=16m

  Tweak this value up until you stop getting dynamic variable drops.

int sendfile(int fd, int s, off_t offset, off_t *len, struct sf_hdtr* hdtr, int flags);

• Offset can't fall beyond EOF
• len can't be NULL
• on return, len is number of bytes successfully sent
• returns EAGAIN on non-blocking fd
• on EINTR, len of 0 does not mean everything was copied
• len 0 → till EOF
• FD must point to regular file
• s must be sock_stream socket

int sendfile(int fd, int s, off_t offset, size_t nbytes, struct sf_hdtr *hdtr, off_t *sbytes, int flags);

• offset can't fall beyond EOF
• nbytes 0 → till eof
• sbytes – total bytes sent
• flags sf_nodiskio – no blocking or return EBUSY
• fd must be file descriptor
• s must be sock_stream descriptor
• on EINTR, some data might be already sent

ssize_t sendfile(int out, int in, off_t *off, size_t len);

• in must be regular file
• out must be sock_stream socket
• off is pointer to offset
• on return, off points to byte following last byte that was read
• does not modify in_fd offset
• does modify out_fd offset
• on EINTR, no data was transferred

ssize_t sendfile(int out, int in, off_t *offset, size_t count);

• If offset is set to NULL, update in_fd's offset
• else write to offset
• in_fd must support mmap()
• in_fd can't be socket
• count can't be zero
• user should fall back to read()/write() if sendfile() failes with EINVAL or ENOSYS
• returns EAGAIN on non-blocking FD

(1 hour, 15 mins ago) Кашляющие наступают. Теперь ещё и сзади кашляют. И сам покашливаю :(
(3 hours, 7 mins ago) Не могу так работать, один хрюкает носом каждую минуту на весь опенспейс, другой кашляет. Голова болит от всего этого.
(1 day ago) Ping avatar photo upload isn't working.
(1 day, 5 hours ago) Н-да. Все аватарки в пинге премодерируются.
(1 day, 6 hours ago) Вышел Twitter для iPad