From 79ba247fe64a602aa6af8d65a189ecea913ba61f Mon Sep 17 00:00:00 2001
From: Michael Cook <michael@episci.com>
Date: Sun, 11 Oct 2020 10:22:24 -0400
Subject: [PATCH] Catch SIGTERM and attempt to exit cleanly
This change is to enable use of gprof which requires the process
call `exit` to write out the collected data.
The UE (lte-uesoftmodem) exits cleanly, but the eNB
(lte-softmodem) crashes as it tries to shut down...
---
common/utils/ocp_itti/intertask_interface.cpp | 17 +++++++++++++++--
1 file changed, 15 insertions(+), 2 deletions(-)
diff --git a/common/utils/ocp_itti/intertask_interface.cpp b/common/utils/ocp_itti/intertask_interface.cpp
index 4c752838943..3776dc41067 100644
--- a/common/utils/ocp_itti/intertask_interface.cpp
+++ b/common/utils/ocp_itti/intertask_interface.cpp
@@ -416,9 +416,22 @@ task_list_t tasks[TASK_MAX];
void itti_send_terminate_message(task_id_t task_id) {
}
+ static volatile bool shutting_down;
+
+ static void catch_sigterm(int) {
+ static const char msg[] = "\n** Caught SIGTERM, shutting down\n";
+ __attribute__((unused))
+ int unused = write(STDOUT_FILENO, msg, sizeof(msg) - 1);
+ shutting_down = true;
+ }
+
void itti_wait_tasks_end(void) {
- while(1)
- sleep(24*3600);
+ shutting_down = false;
+ signal(SIGTERM, catch_sigterm);
+ while (! shutting_down)
+ {
+ sleep(24 * 3600);
+ }
}
void itti_update_lte_time(uint32_t frame, uint8_t slot) {}
--
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