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for systems with a broken select use u_sleep() to ensure the write

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process doesn't chew too much cpu time.
This commit is contained in:
Andrew Tridgell
1998-03-23 04:14:21 +00:00
parent 3ec4dd9781
commit feaa89c410
2 changed files with 14 additions and 3 deletions
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1
io.c
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@@ -234,6 +234,7 @@ static int writefd(int fd,char *buf,int len)
/* hmmm, we got a write select on the fd and then failed to write.
Why doesn't that mean that the fd is dead? It doesn't on some
systems it seems (eg. IRIX) */
u_sleep(1000);
#if 0
fprintf(FERROR,"write exception\n");
exit_cleanup(1);

16
util.c
View File

@@ -82,9 +82,9 @@ char *map_ptr(struct map_struct *map,off_t offset,int len)
if (lseek(map->fd,offset,SEEK_SET) != offset ||
(nread=read(map->fd,map->p,len)) != len) {
fprintf(FERROR,"EOF in map_ptr! (offset=%d len=%d nread=%d errno=%d)\n",
(int)offset, len, nread, errno);
exit_cleanup(1);
fprintf(FERROR,"EOF in map_ptr! (offset=%d len=%d nread=%d errno=%d)\n",
(int)offset, len, nread, errno);
exit_cleanup(1);
}
map->p_offset = offset;
@@ -342,3 +342,13 @@ int copy_file(char *source, char *dest, mode_t mode)
return 0;
}
/* sleep for a while via select */
void u_sleep(int usec)
{
struct timeval tv;
tv.tv_sec = 0;
tv.tv_usec = usec;
select(0, NULL, NULL, NULL, &tv);
}