LD_PRELOAD poll implementation

[vpp.git] / extras / vcl-ldpreload / src / libvcl-ldpreload / vcom.h

diff --git a/extras/vcl-ldpreload/src/libvcl-ldpreload/vcom.h b/extras/vcl-ldpreload/src/libvcl-ldpreload/vcom.h
index bedeef8..5871b52 100644 (file)
--- a/extras/vcl-ldpreload/src/libvcl-ldpreload/vcom.h
+++ b/extras/vcl-ldpreload/src/libvcl-ldpreload/vcom.h
@@ -178,6 +178,12 @@ extern int
 vcom_epoll_pwait (int __epfd, struct epoll_event *__events,
                  int __maxevents, int __timeout, const __sigset_t * __ss);
 
+/*
+ * NOTE: observed __nfds is less than 128 from kubecon strace files
+ * for the POC, it's fair to assume that nfds is less than 1024.
+ * TBD: make it thread safe and design to scale.
+ * */
+#define MAX_POLL_NFDS_DEFAULT   1024
 extern int vcom_poll (struct pollfd *__fds, nfds_t __nfds, int __timeout);
 
 #ifdef __USE_GNU