From 27b0e85b66b4814957292ca620793a071b541aa9 Mon Sep 17 00:00:00 2001
From: Michael Jeanson <mjeanson@efficios.com>
Date: Thu, 14 Dec 2023 15:42:15 -0500
Subject: [PATCH] logging: Add freebsd support

Add the FreeBSD platform specific code to get a thread id for the
logging system.

Change-Id: Ifd2a53c5c47e1b23a7f0a90c1fc0768e7f4dbcb3
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Reviewed-on: https://review.lttng.org/c/babeltrace/+/11582
Reviewed-by: Philippe Proulx <eeppeliteloop@gmail.com>
---
 src/logging/log-api.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/src/logging/log-api.c b/src/logging/log-api.c
index 55729bd1..ae7c10c5 100644
--- a/src/logging/log-api.c
+++ b/src/logging/log-api.c
@@ -36,6 +36,10 @@
 # include <mach.h>
 #endif
 
+#ifdef __FreeBSD__
+# include <sys/thr.h>
+#endif
+
 #include "common/assert.h"
 #include "common/common.h"
 #include "common/macros.h"
@@ -192,6 +196,18 @@ void append_pid_tid_to_msg_buf(char ** const at)
 		mach_port_deallocate(mach_task_self(), mach_port);
 		tid = (unsigned int) mach_port;
 	}
+#elif defined(__FreeBSD__)
+	{
+		long ltid;
+
+		thr_self(&ltid);
+
+		/*
+		 * The thread ID is an integer in the range from
+		 * `PID_MAX + 2` (100001) to `INT_MAX`.
+		 */
+		tid = (unsigned int) ltid;
+	}
 #else
 # error "Platform not supported"
 #endif
-- 
2.34.1