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Poll the socket descriptor while in el_gets()

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so that our display is scribbled over as we
requested.
This commit is contained in:
Brian Somers 1997-11-11 12:28:02 +00:00
parent 3aa7aa46a3
commit f960587c7b
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=31117
1 changed files with 36 additions and 1 deletions
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37
usr.sbin/pppctl/pppctl.c
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@ -7,6 +7,7 @@
#include <netdb.h>
#include <histedit.h>
#include <poll.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
@ -128,6 +129,40 @@ Receive(int fd, unsigned TimeoutVal, int display)
return Result;
}
static int data = -1;
static void
check_fd(int sig)
{
if (data != -1) {
struct pollfd p;
static char buf[LINELEN];
p.fd = data;
p.events = POLLIN|POLLPRI;
p.revents = p.events|POLLOUT;
if (poll(&p, 1, 0) > 0)
write(1, buf, read(data, buf, sizeof buf));
}
}
static const char *
smartgets(EditLine *e, int *count, int fd)
{
const char *result;
/* struct itimerval it; */
data = fd;
signal(SIGALRM, check_fd);
ualarm(500000, 500000);
result = el_gets(e, count);
ualarm(0,0);
signal(SIGALRM, SIG_DFL);
data = -1;
return result;
}
int
main(int argc, char **argv)
{
@ -307,7 +342,7 @@ main(int argc, char **argv)
el_set(edit, EL_EDITOR, "emacs");
el_set(edit, EL_SIGNAL, 1);
el_set(edit, EL_HIST, history, (const char *)hist);
while ((l = el_gets(edit, &len))) {
while ((l = smartgets(edit, &len, fd))) {
if (len > 1)
history(hist, H_ENTER, l);
write(fd, l, len);