From: Olivier Houchard <ohouchard@haproxy.com>
Date: Thu, 10 Sep 2026 16:42:59 +0000 (+0200)
Subject: MINOR: fd: add fd_tables_are_split() to test for split FD tables
X-Git-Tag: v3.5-dev7~40
X-Git-Url: https://git.kaiwu.me/?a=commitdiff_plain;h=f8a51c000fe0fbbd497ade0ddb0e9d6f36a0d3de;p=haproxy.git

MINOR: fd: add fd_tables_are_split() to test for split FD tables

Non-zero when FD tables are split per thread group, i.e. an FD is only
usable from within its owner group.
---

diff --git a/include/haproxy/fd.h b/include/haproxy/fd.h
index d06777b33..8597fc917 100644
--- a/include/haproxy/fd.h
+++ b/include/haproxy/fd.h
@@ -53,6 +53,14 @@ extern int poller_wr_pipe[MAX_THREADS];
 
 extern volatile int ha_used_fds; // Number of FDs we're currently using
 
+/* Non-zero when FD tables are split per thread group, i.e. an FD is only
+ * usable from within its owner group.
+ */
+static inline int fd_tables_are_split(void)
+{
+	return (global.tune.options & GTUNE_NO_TG_FD_SHARING) && global.nbtgroups > 1;
+}
+
 /* Deletes an FD from the fdsets.
  * The file descriptor is also closed.
  */