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Use one select() call to both delay and detect keypresses.

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git-svn-id: svn://katsu.triplehelix.org/dgamelaunch/trunk@333 db0b04b0-f4d1-0310-9a6d-de3e77497b0e
This commit is contained in:
Jilles Tjoelker 2004-08-23 12:43:59 +00:00
parent 30973454e4
commit ca91ccc027
1 changed files with 4 additions and 11 deletions
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15
ttyplay.c
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@ -139,19 +139,14 @@ ttypread (FILE * fp, Header * h, char **buf, int pread)
{ {
int counter = 0; int counter = 0;
fd_set readfs; fd_set readfs;
struct timeval zerotime; struct timeval w = { 0, 100000 };
zerotime.tv_sec = 0;
zerotime.tv_usec = 0;
/* /*
* Read persistently just like tail -f. * Read persistently just like tail -f.
*/ */
while (ttyread (fp, h, buf, 1) == READ_EOF) while (ttyread (fp, h, buf, 1) == READ_EOF)
{ {
struct timeval w = { 0, 100000 };
fflush(stdout); fflush(stdout);
select (0, NULL, NULL, NULL, &w);
clearerr (fp); clearerr (fp);
if (counter++ > (20 * 60 * 10)) if (counter++ > (20 * 60 * 10))
{ {
@ -159,13 +154,11 @@ ttypread (FILE * fp, Header * h, char **buf, int pread)
printf ("Exiting due to 20 minutes of inactivity.\n"); printf ("Exiting due to 20 minutes of inactivity.\n");
exit (-23); exit (-23);
} }
FD_ZERO (&readfs);
/* look for keypresses here. as good a place as any */
FD_SET (STDIN_FILENO, &readfs); FD_SET (STDIN_FILENO, &readfs);
select (1, &readfs, NULL, NULL, &zerotime); select (1, &readfs, NULL, NULL, &w);
if (FD_ISSET (0, &readfs)) if (FD_ISSET (0, &readfs))
{ /* a user hits a character? */ { /* user hits a character? */
char c; char c;
read (STDIN_FILENO, &c, 1); /* drain the character */ read (STDIN_FILENO, &c, 1); /* drain the character */