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Sven: 13108: Handle traps synchronously

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pws: 13109, 13111: clear up zle display when output produced in trap.
This commit is contained in:
Peter Stephenson 2000-11-11 19:50:27 +00:00
parent 89d480f57d
commit c292a3ae50
15 changed files with 387 additions and 202 deletions
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30
Src/utils.c
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@ -1417,13 +1417,39 @@ checkrmall(char *s)
return (getquery("ny", 1) == 'y');
}
/**/
mod_export int
ztrapread(int fd, char *buf, int len)
{
int ret;
ALLOWTRAPS {
ret = read(fd, buf, len);
} DISALLOWTRAPS;
return ret;
}
/**/
mod_export int
ztrapwrite(int fd, char *buf, int len)
{
int ret;
ALLOWTRAPS {
ret = write(fd, buf, len);
} DISALLOWTRAPS;
return ret;
}
/**/
int
read1char(void)
{
char c;
while (read(SHTTY, &c, 1) != 1) {
while (ztrapread(SHTTY, &c, 1) != 1) {
if (errno != EINTR || errflag || retflag || breaks || contflag)
return -1;
}
@ -1440,7 +1466,7 @@ noquery(int purge)
ioctl(SHTTY, FIONREAD, (char *)&val);
if (purge) {
for (; val; val--)
read(SHTTY, &c, 1);
ztrapread(SHTTY, &c, 1);
}
#endif