From 53969ac0be85346d2abd776c66d4ff244c9f5da7 Mon Sep 17 00:00:00 2001
From: wuchangsheng <wuchangsheng2@huawei.com>
Date: Mon, 14 Mar 2022 22:41:57 +0800
Subject: [PATCH 28/34] fix lstack show latency

---
 src/lstack/core/lstack_init.c       | 6 ++++++
 src/lstack/core/lstack_stack_stat.c | 5 +++++
 src/ltran/ltran_dfx.c               | 2 --
 3 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/src/lstack/core/lstack_init.c b/src/lstack/core/lstack_init.c
index df60c4f..17195c8 100644
--- a/src/lstack/core/lstack_init.c
+++ b/src/lstack/core/lstack_init.c
@@ -190,6 +190,12 @@ __attribute__((constructor)) void gazelle_network_init(void)
         LSTACK_EXIT(1, "pthread_getaffinity_np failed\n");
     }
 
+    /* to prevent crash , just ignore SIGPIPE when socket is closed */
+    if (signal(SIGPIPE, SIG_IGN) == SIG_ERR) {
+        LSTACK_PRE_LOG(LSTACK_ERR, "signal error, errno:%d.", errno);
+        LSTACK_EXIT(1, "signal SIGPIPE SIG_IGN\n");
+    }
+
     /*
     * Phase 6: Init control plane and dpdk init */
     pthread_t tid;
diff --git a/src/lstack/core/lstack_stack_stat.c b/src/lstack/core/lstack_stack_stat.c
index 9a8fd08..1813906 100644
--- a/src/lstack/core/lstack_stack_stat.c
+++ b/src/lstack/core/lstack_stack_stat.c
@@ -190,6 +190,11 @@ int32_t handle_stack_cmd(int32_t fd, enum GAZELLE_STAT_MODE stat_mode)
         struct protocol_stack *stack = stack_group->stacks[i];
         get_stack_dfx_data(&dfx, stack, stat_mode);
 
+        if (!use_ltran() &&
+            (stat_mode == GAZELLE_STAT_LTRAN_START_LATENCY || stat_mode == GAZELLE_STAT_LTRAN_STOP_LATENCY)) {
+            continue;
+        }
+
         dfx.tid = stack->tid;
         if (i == stack_group->stack_num - 1) {
             dfx.eof = 1;
diff --git a/src/ltran/ltran_dfx.c b/src/ltran/ltran_dfx.c
index a575c33..3baa017 100644
--- a/src/ltran/ltran_dfx.c
+++ b/src/ltran/ltran_dfx.c
@@ -1231,8 +1231,6 @@ int32_t main(int32_t argc, char *argv[])
 
     if (!g_use_ltran) {
         g_gazelle_dfx_tbl[GAZELLE_STAT_LSTACK_SHOW].recv_size = sizeof(struct gazelle_stack_dfx_data);
-        g_gazelle_dfx_tbl[GAZELLE_STAT_LTRAN_START_LATENCY].recv_size =sizeof(struct gazelle_stack_dfx_data);
-        g_gazelle_dfx_tbl[GAZELLE_STAT_LTRAN_STOP_LATENCY].recv_size =sizeof(struct gazelle_stack_dfx_data);
         ret = check_cmd_support(req_msg, req_msg_num);
         if (ret < 0) {
             return -1;
-- 
1.8.3.1