rewordings/edits

man7/epoll.7

@@ -50,33 +50,28 @@ The
 .B epoll
 event distribution interface is able to behave both as edge-triggered
 (ET) and level-triggered (LT).
-The difference between ET and LT
-event distribution mechanism can be described as follows.
+The difference between the two mechanisms
+can be described as follows.
 Suppose that
 this scenario happens :
-.TP
-.B 1
+.IP 1. 3
 The file descriptor that represents the read side of a pipe
 .RI ( rfd )
 is added inside the
 .B epoll
 device.
-.TP
-.B 2
-A pipe writer writes 2Kb of data on the write side of the pipe.
-.TP
-.B 3
+.IP 2.
+A pipe writer writes 2 kB of data on the write side of the pipe.
+.IP 3.
 A call to
 .BR epoll_wait (2)
 is done that will return
 .I rfd
 as a ready file descriptor.
-.TP
-.B 4
-The pipe reader reads 1Kb of data from
+.IP 4.
+The pipe reader reads 1 kB of data from
 .IR rfd .
-.TP
-.B 5
+.IP 5.
 A call to
 .BR epoll_wait (2)
 is done.
@@ -89,14 +84,14 @@ interface using the
 .B EPOLLET
 flag, the call to
 .BR epoll_wait (2)
-done in step
+done in step 
 .B 5
 will probably hang despite the available data still present in the file
 input buffer;
 meanwhile the remote peer might be expecting a response based on the
 data it already sent.
-The reason for this is that edge-triggered event
-distribution delivers events only when events happens on the monitored file.
+The reason for this is that edge-triggered mode only
+delivers events when changes occur on the monitored file descriptor.
 So, in step
 .B 5
 the caller might end up waiting for some data that is already present inside
@@ -131,7 +126,7 @@ interface is as follows:
 with non-blocking file descriptors
 .TP
 .B ii
-by going to wait for an event only after
+by waiting for an event only after
 .BR read (2)
 or
 .BR write (2)
@@ -218,7 +213,7 @@ for(;;) {
 When used as an edge-triggered interface, for performance reasons, it is
 possible to add the file descriptor inside the epoll interface
 .RB ( EPOLL_CTL_ADD )
-) once by specifying
+once by specifying
 .RB ( EPOLLIN | EPOLLOUT ).
 This allows you to avoid
 continuously switching between
@@ -232,7 +227,7 @@ with
 .SS Questions and Answers
 .TP
 .B Q1
-What happens if you add the same file descriptor to an epoll_set twice?
+What happens if you add the same file descriptor to an epoll set twice?
 .TP
 .B A1
 You will probably get EEXIST.