MEDIUM: fd/threads: Make sure we don't miss a fd cache entry.
An fd cache entry might be removed and added at the end of the list, while
another thread is parsing it, if that happens, we may miss fd cache entries,
to avoid that, add a new field in the struct fdtab, "added_mask", which
contains a mask for potentially affected threads, if it is set, the
corresponding thread will set its bit in fd_cache_mask, to avoid waiting in
poll while it may have more work to do.
diff --git a/src/cli.c b/src/cli.c
index 85d3567..fbd2646 100644
--- a/src/cli.c
+++ b/src/cli.c
@@ -811,7 +811,7 @@
(fdt.ev & FD_POLL_IN) ? 'I' : 'i',
fdt.linger_risk ? 'L' : 'l',
fdt.cloned ? 'C' : 'c',
- fdt.fdcache_entry.next >= -2 ? 1 : 0,
+ fdt.cache.next >= -2 ? 1 : 0,
fdt.owner,
fdt.iocb,
(fdt.iocb == conn_fd_handler) ? "conn_fd_handler" :