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f0356ec85c
This patch adds epoll option for the eloop implementation. This can be selected with the CONFIG_ELOOP_EPOLL=y build option. [merit] See Table1. Table1. comparison table +--------+--------+-----------+------------+-------------+ | | add fd | remove fd | prepare fd | dispatch fd | +--------+--------+-----------+------------+-------------+ | select | O(1) | O(1) | O(N) | O(N) | +--------+--------+-----------+------------+-------------+ | poll | O(1) | O(1) | O(N) | O(N) | +--------+--------+-----------+------------+-------------+ | epoll | O(1) | O(1) | 0 | O(M) | +--------+--------+-----------+------------+-------------+ "add fd" is addition of fd by eloop_sock_table_add_sock(). "remove fd" is removal of fd by eloop_sock_table_remove_sock(). "prepare fd" is preparation of fds before wait in eloop_run(). "dispatch fd" is dispatchment of fds by eloop_sock_table_dispatch(). "N" is all watching fds. "M" is fds which could be dispatched after waiting. As shown in Table1, epoll option has better performance on "prepare fd" column. Because select/poll option requires setting fds before every select()/poll(). But epoll_wait() doesn't need it. And epoll option has also better performance on "dispatch fd" column. Because select/poll option needs to check all registered fds to find out dispatchable fds. But epoll option doesn't require checking all registered fds. Because epoll_wait() returns dispatchable fd set. So epoll option is effective for GO/AP functionality. [demerit] The epoll option requires additional heap memory. In case of P2P GO, it is about 8K bytes. Signed-off-by: Masashi Honma <masashi.honma@gmail.com> |
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| .. | ||
| .gitignore | ||
| base64.c | ||
| base64.h | ||
| bitfield.c | ||
| bitfield.h | ||
| browser-android.c | ||
| browser-system.c | ||
| browser-wpadebug.c | ||
| browser.c | ||
| browser.h | ||
| build_config.h | ||
| common.c | ||
| common.h | ||
| edit_readline.c | ||
| edit_simple.c | ||
| edit.c | ||
| edit.h | ||
| eloop_win.c | ||
| eloop.c | ||
| eloop.h | ||
| ext_password_i.h | ||
| ext_password_test.c | ||
| ext_password.c | ||
| ext_password.h | ||
| http_curl.c | ||
| http-utils.h | ||
| includes.h | ||
| ip_addr.c | ||
| ip_addr.h | ||
| list.h | ||
| Makefile | ||
| os_internal.c | ||
| os_none.c | ||
| os_unix.c | ||
| os_win32.c | ||
| os.h | ||
| pcsc_funcs.c | ||
| pcsc_funcs.h | ||
| platform.h | ||
| radiotap_iter.h | ||
| radiotap.c | ||
| radiotap.h | ||
| state_machine.h | ||
| trace.c | ||
| trace.h | ||
| uuid.c | ||
| uuid.h | ||
| wpa_debug.c | ||
| wpa_debug.h | ||
| wpabuf.c | ||
| wpabuf.h | ||
| xml_libxml2.c | ||
| xml-utils.c | ||
| xml-utils.h | ||