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Cygwin: fhandler_fifo::cleanup_handlers: improve efficiency 

Traverse the fifo_client_handler list from the top down to try to
avoid copying.
This commit is contained in:
Ken Brown 2020-11-19 15:22:56 -05:00
parent 9ea6f38dea
commit 11c5fd6abd
1 changed files with 4 additions and 9 deletions
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13
winsup/cygwin/fhandler_fifo.cc
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@ -395,15 +395,10 @@ fhandler_fifo::delete_client_handler (int i)
void
fhandler_fifo::cleanup_handlers ()
{
int i = 0;
while (i < nhandlers)
{
if (fc_handler[i].get_state () < fc_connected)
delete_client_handler (i);
else
i++;
}
/* Work from the top down to try to avoid copying. */
for (int i = nhandlers - 1; i >= 0; --i)
if (fc_handler[i].get_state () < fc_connected)
delete_client_handler (i);
}
/* Always called with fifo_client_lock in place. */