diff options
Diffstat (limited to 'man7/epoll.7')
| -rw-r--r-- | man7/epoll.7 | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/man7/epoll.7 b/man7/epoll.7 index 02a53e9..a93bc0b 100644 --- a/man7/epoll.7 +++ b/man7/epoll.7 @@ -4,7 +4,7 @@ .\" .\" Davide Libenzi <davidel@xmailserver.org> .\" -.TH epoll 7 2023-05-03 "Linux man-pages 6.05.01" +.TH epoll 7 2023-10-31 "Linux man-pages 6.7" .SH NAME epoll \- I/O event notification facility .SH SYNOPSIS @@ -21,7 +21,7 @@ The .B epoll API can be used either as an edge-triggered or a level-triggered interface and scales well to large numbers of watched file descriptors. -.PP +.P The central concept of the .B epoll API is the @@ -45,7 +45,7 @@ The ready list is a subset of the file descriptors in the interest list. The ready list is dynamically populated by the kernel as a result of I/O activity on those file descriptors. -.PP +.P The following system calls are provided to create and manage an .B epoll @@ -104,7 +104,7 @@ The pipe reader reads 1\ kB of data from A call to .BR epoll_wait (2) is done. -.PP +.P If the .I rfd file descriptor has been added to the @@ -139,7 +139,7 @@ does not consume the whole buffer data, the call to done in step .B 5 might block indefinitely. -.PP +.P An application that employs the .B EPOLLET flag should use nonblocking file descriptors to avoid having a blocking @@ -158,7 +158,7 @@ or .BR write (2) return .BR EAGAIN . -.PP +.P By contrast, when used as a level-triggered interface (the default, when .B EPOLLET @@ -168,7 +168,7 @@ is simply a faster .BR poll (2), and can be used wherever the latter is used since it shares the same semantics. -.PP +.P Since even with edge-triggered .BR epoll , multiple events can be generated upon receipt of multiple chunks of data, @@ -185,7 +185,7 @@ it is the caller's responsibility to rearm the file descriptor using .BR epoll_ctl (2) with .BR EPOLL_CTL_MOD . -.PP +.P If multiple threads (or processes, if child processes have inherited the .B epoll @@ -214,7 +214,7 @@ it is necessary to use the .BR epoll_ctl (2) .B EPOLLWAKEUP flag. -.PP +.P When the .B EPOLLWAKEUP flag is set in the @@ -284,7 +284,7 @@ it will continue to or .BR write (2) from where it stopped before. -.PP +.P .in +4n .EX #define MAX_EVENTS 10 @@ -337,7 +337,7 @@ for (;;) { } .EE .in -.PP +.P When used as an edge-triggered interface, for performance reasons, it is possible to add the file descriptor inside the .B epoll @@ -595,7 +595,7 @@ directory. See .BR proc (5) for further details. -.PP +.P The .BR kcmp (2) .B KCMP_EPOLL_TFD |