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Also check fd_set operations on Windows. Fixes #455

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This commit is contained in:
dmiller
2022-09-23 01:35:09 +00:00
parent 5e39a04749
commit 6fd0261731
2 changed files with 27 additions and 31 deletions
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16
nbase/nbase_misc.c
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@@ -361,17 +361,17 @@ int fselect(int s, fd_set *rmaster, fd_set *wmaster, fd_set *emaster, struct tim
int iter = -1, i;
struct timeval stv;
fd_set rset, wset, eset;
int r_stdin = rmaster != NULL && FD_ISSET(STDIN_FILENO, rmaster);
int e_stdin = emaster != NULL && FD_ISSET(STDIN_FILENO, emaster);
int r_stdin = rmaster != NULL && checked_fd_isset(STDIN_FILENO, rmaster);
int e_stdin = emaster != NULL && checked_fd_isset(STDIN_FILENO, emaster);
/* Figure out whether there are any FDs in the sets, as @$@!$# Windows
returns WSAINVAL (10022) if you call a select() with no FDs, even though
the Linux man page says that doing so is a good, reasonably portable way
to sleep with subsecond precision. Sigh. */
for(i = s; i > STDIN_FILENO; i--) {
if ((rmaster != NULL && FD_ISSET(i, rmaster))
|| (wmaster != NULL && FD_ISSET(i, wmaster))
|| (emaster != NULL && FD_ISSET(i, emaster)))
if ((rmaster != NULL && checked_fd_isset(i, rmaster))
|| (wmaster != NULL && checked_fd_isset(i, wmaster))
|| (emaster != NULL && checked_fd_isset(i, emaster)))
break;
s--;
}
@@ -412,9 +412,9 @@ int fselect(int s, fd_set *rmaster, fd_set *wmaster, fd_set *emaster, struct tim
}
if (r_stdin)
FD_CLR(STDIN_FILENO, rmaster);
checked_fd_clr(STDIN_FILENO, rmaster);
if (e_stdin)
FD_CLR(STDIN_FILENO, emaster);
checked_fd_clr(STDIN_FILENO, emaster);
if (tv) {
int usecs = (tv->tv_sec * 1000000) + tv->tv_usec;
@@ -448,7 +448,7 @@ int fselect(int s, fd_set *rmaster, fd_set *wmaster, fd_set *emaster, struct tim
usleep(stv.tv_sec * 1000000UL + stv.tv_usec);
if (fds_ready > -1 && r_stdin && win_stdin_ready()) {
FD_SET(STDIN_FILENO, &rset);
checked_fd_set(STDIN_FILENO, &rset);
fds_ready++;
}