io_getcookie(3) Library Functions Manual io_getcookie(3) NAME io_getcookie - retrieve cookie SYNTAX #include <libowfat/io.h> void* io_getcookie(int64 fd); DESCRIPTION io_getcookie retrieves a cookie (pointer to some anonymous data structure you associated with this descriptor). Use io_setcookie(3) to associate a cookie with a descriptor. If you did not associate a cookie with this descriptor, io_getcookie re- turns NULL. The idea is that you put the state associated with a TCP connection you serve in a common struct. Then you do not need to have your own data structure to retrieve the state for a connection, you can just use the data structure io_wait already maintains. The lookup works in constant time and should not cause any cache misses. SEE ALSO io_wait(3), io_setcookie(3) io_getcookie(3)
NAME | SYNTAX | DESCRIPTION | SEE ALSO
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