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From: dapengx.yu@intel.com
To: beilei.xing@intel.com, xiaoyun.li@intel.com,
	wenzhuo.lu@intel.com, bernard.iremonger@intel.com,
	stephen@networkplumber.org
Cc: dev@dpdk.org, Dapeng Yu <dapengx.yu@intel.com>, stable@dpdk.org
Subject: [dpdk-stable] [PATCH v2] app/testpmd: avoid exit without terminal restore
Date: Mon, 25 Jan 2021 11:29:53 +0800
Message-ID: <20210125032953.430840-1-dapengx.yu@intel.com> (raw)
In-Reply-To: <20201224035748.67012-1-dapengx.yu@intel.com>

From: Dapeng Yu <dapengx.yu@intel.com>

In interactive mode, if testpmd exit by calling rte_exit without
restore terminal attributes, terminal will not echo keyboard input.

register a function with atexit() in prompt(), when exit() in
rte_exit() is called, the registered function restores terminal
attributes.

Fixes: 5a8fb55c48ab ("app/testpmd: support unidirectional configuration")
Cc: stable@dpdk.org

Signed-off-by: Dapeng Yu <dapengx.yu@intel.com>
---
 app/test-pmd/cmdline.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/app/test-pmd/cmdline.c b/app/test-pmd/cmdline.c
index 89034c8b7..f7e18ba3d 100644
--- a/app/test-pmd/cmdline.c
+++ b/app/test-pmd/cmdline.c
@@ -17116,6 +17116,7 @@ cmdline_read_from_file(const char *filename)
 void
 prompt(void)
 {
+	int ret;
 	/* initialize non-constant commands */
 	cmd_set_fwd_mode_init();
 	cmd_set_fwd_retry_mode_init();
@@ -17123,15 +17124,23 @@ prompt(void)
 	testpmd_cl = cmdline_stdin_new(main_ctx, "testpmd> ");
 	if (testpmd_cl == NULL)
 		return;
+
+	ret = atexit(prompt_exit);
+	if (ret != 0)
+		printf("Cannot set exit function for cmdline\n");
+
 	cmdline_interact(testpmd_cl);
-	cmdline_stdin_exit(testpmd_cl);
+	if (ret != 0)
+		cmdline_stdin_exit(testpmd_cl);
 }
 
 void
 prompt_exit(void)
 {
-	if (testpmd_cl != NULL)
+	if (testpmd_cl != NULL) {
 		cmdline_quit(testpmd_cl);
+		cmdline_stdin_exit(testpmd_cl);
+	}
 }
 
 static void
-- 
2.27.0


  parent reply	other threads:[~2021-01-25  3:30 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-24  3:57 [dpdk-stable] [PATCH] app/testpmd: avoid exit without resource release dapengx.yu
2020-12-25  3:03 ` [dpdk-stable] [dpdk-dev] " Stephen Hemminger
2020-12-25  5:09   ` Yu, DapengX
2021-01-15  3:28     ` Yu, DapengX
2021-01-15  5:50       ` Xing, Beilei
2021-01-15  6:05         ` Yu, DapengX
2021-01-15  9:21         ` Li, Xiaoyun
2021-01-18 11:47           ` Yu, DapengX
2021-01-25  3:29 ` dapengx.yu [this message]
2021-01-26  6:33   ` [dpdk-stable] [PATCH v2] app/testpmd: avoid exit without terminal restore Li, Xiaoyun
2021-01-26  7:13     ` Yu, DapengX
2021-01-26  7:44     ` Yu, DapengX
2021-01-26  8:24       ` Li, Xiaoyun
2021-01-29 10:46         ` Ferruh Yigit

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