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update GUSI 2.1.6

This commit is contained in:
chombier 2001-04-10 16:40:57 +00:00
parent d900a6d4b0
commit c76691e390
2 changed files with 6 additions and 0 deletions
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GUSI/src/GUSIPOSIX.nw
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GUSI/src/tangled/GUSIPOSIX.cp
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@ -904,7 +904,12 @@ int select(int width, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, stru
&readres, &writeres, &exceptres); &readres, &writeres, &exceptres);
GUSIContext::Yield(kGUSIYield); GUSIContext::Yield(kGUSIYield);
} }
// This loop is pretty much guaranteed to set [[errno]] to [[EBADF]], so we
// save the actual error code and restore it (this is harmless if no error
// occurred).
//
// <Call [[post_select]] for all file descriptors>= // <Call [[post_select]] for all file descriptors>=
int saveErrno = errno;
for (int s = 0; s < width ; ++s) for (int s = 0; s < width ; ++s)
if (GUSISocket * sock = GUSIDescriptorTable::LookupSocket(s)) { if (GUSISocket * sock = GUSIDescriptorTable::LookupSocket(s)) {
bool r = readfds && FD_ISSET(s,readfds); bool r = readfds && FD_ISSET(s,readfds);
@ -914,6 +919,7 @@ int select(int width, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, stru
if (r || w || e) if (r || w || e)
sock->post_select(r, w, e); sock->post_select(r, w, e);
} }
errno = saveErrno;
// <Copy internal descriptor sets to parameters>= // <Copy internal descriptor sets to parameters>=
if (readfds) if (readfds)
*readfds = readres; *readfds = readres;