[Tarantool-patches] [PATCH] console: check on_shutdown() before exit

[Roman Khabibov]

Hi! Thanks for the review.

> On Apr 12, 2020, at 13:37, Cyrill Gorcunov <gorcunov at gmail.com> wrote:
> 
> On Sun, Apr 12, 2020 at 02:10:34AM +0300, Roman Khabibov wrote:
>> Add check that on_shutdown() triggers were called before exit,
>> because in case of EOF or Ctrl+D (no signals) they were ignored.
>> 
>> Closes #4703
> 
> Ok, I don't see any obvious problems with the patch. Only a nit
> due to coding style below.
> ...
>> diff --git a/test/box/on_shutdown.test.lua b/test/box/on_shutdown.test.lua
>> index 2a9143404..795887202 100644
>> --- a/test/box/on_shutdown.test.lua
>> +++ b/test/box/on_shutdown.test.lua
>> @@ -65,3 +65,20 @@ test_run:grep_log('test', 'signal', nil, {noreset=true})
> ...
>> +on_shutdown_cmd = "box.ctl.on_shutdown(function() local fio = require('fio') "..
>> +    "fio.open('"..file_name.."', {'O_CREAT', 'O_TRUNC', 'O_WRONLY'}, 777):clo"..
>> +    "se() end)";
> 
> This is ugly as hell. Can we please do not split "close". Something like
> 
> on_shutdown_cmd = "box.ctl.on_shutdown(function() local fio = require('fio') "..
> 	"fio.open('"..file_name.."', "..
> 	"{'O_CREAT', 'O_TRUNC', 'O_WRONLY'}, 777):close() end)";
> 
> Or somehow more readable? Maybe like
> 
> on_shutdown_cmd = "box.ctl.on_shutdown(function() local fio = require('fio') "..
> 	"local flags = {'O_CREAT', 'O_TRUNC', 'O_WRONLY'}" ..
> 	"local f = fio.open(mode, 777)" ..
> 	"f:close()"
> 
> (I'm sure I've done some typos here but you get the idea)
diff --git a/test/box/on_shutdown.test.lua b/test/box/on_shutdown.test.lua
index 2a9143404..d033a7ac5 100644
--- a/test/box/on_shutdown.test.lua
+++ b/test/box/on_shutdown.test.lua
@@ -65,3 +65,20 @@ test_run:grep_log('test', 'signal', nil, {noreset=true})
 test_run:cmd("stop server test")
 test_run:cmd("cleanup server test")
 test_run:cmd("delete server test")
+
+--
+-- gh-4703: Make sure that on_shutdown triggers are executed after
+-- EOF.
+--
+fio = require("fio")
+file_name = "on_shutdown_triggered.txt"
+test_run:cmd("setopt delimiter ';'");
+on_shutdown_cmd = "box.ctl.on_shutdown(function() local fio = require('fio') "..
+                   "fio.open('"..file_name.."', "..
+                   "{'O_CREAT', 'O_TRUNC', 'O_WRONLY'}, 777):close() end)";
+test_run:cmd("setopt delimiter ''");
+server = io.popen('tarantool -i', 'w')
+server:write(on_shutdown_cmd)
+server:close()
+fio.path.lexists(file_name) == true
+os.remove(file_name)

commit 6466cf42ae5755826af0c616243106a696da044a (HEAD -> romanhabibov/gh-4703_on_shutdown)
Author: Roman Khabibov <roman.habibov at tarantool.org>
Date:   Fri Apr 10 14:31:17 2020 +0300

    console: check on_shutdown() before exit
    
    Add check that on_shutdown() triggers were called before exit,
    because in case of EOF or Ctrl+D (no signals) they were ignored.
    
    Closes #4703

diff --git a/src/main.cc b/src/main.cc
index bb0794dfe..a2cea3d40 100644
--- a/src/main.cc
+++ b/src/main.cc
@@ -902,6 +902,12 @@ main(int argc, char **argv)
 
 	if (start_loop)
 		say_crit("exiting the event loop");
+	/*
+	 * If Tarantool was stopped using Ctrl+D, then we need to
+	 * call on_shutdown triggers, because Ctrl+D  causes not
+	 * any signals.
+	 */
+	tarantool_exit(exit_code);
 	/* freeing resources */
 	tarantool_free();
 	return exit_code;
diff --git a/test/box/on_shutdown.result b/test/box/on_shutdown.result
index ccbdf45cb..8ca8fed2b 100644
--- a/test/box/on_shutdown.result
+++ b/test/box/on_shutdown.result
@@ -167,3 +167,45 @@ test_run:cmd("delete server test")
 ---
 - true
 ...
+--
+-- gh-4703: Make sure that on_shutdown triggers are executed after
+-- EOF.
+--
+fio = require("fio")
+---
+...
+file_name = "on_shutdown_triggered.txt"
+---
+...
+test_run:cmd("setopt delimiter ';'");
+---
+- true
+...
+on_shutdown_cmd = "box.ctl.on_shutdown(function() local fio = require('fio') "..
+                   "fio.open('"..file_name.."', "..
+                   "{'O_CREAT', 'O_TRUNC', 'O_WRONLY'}, 777):close() end)";
+---
+...
+test_run:cmd("setopt delimiter ''");
+---
+- true
+...
+server = io.popen('tarantool -i', 'w')
+---
+...
+server:write(on_shutdown_cmd)
+---
+- true
+...
+server:close()
+---
+- true
+...
+fio.path.lexists(file_name) == true
+---
+- true
+...
+os.remove(file_name)
+---
+- true
+...
diff --git a/test/box/on_shutdown.test.lua b/test/box/on_shutdown.test.lua
index 2a9143404..d033a7ac5 100644
--- a/test/box/on_shutdown.test.lua
+++ b/test/box/on_shutdown.test.lua
@@ -65,3 +65,20 @@ test_run:grep_log('test', 'signal', nil, {noreset=true})
 test_run:cmd("stop server test")
 test_run:cmd("cleanup server test")
 test_run:cmd("delete server test")
+
+--
+-- gh-4703: Make sure that on_shutdown triggers are executed after
+-- EOF.
+--
+fio = require("fio")
+file_name = "on_shutdown_triggered.txt"
+test_run:cmd("setopt delimiter ';'");
+on_shutdown_cmd = "box.ctl.on_shutdown(function() local fio = require('fio') "..
+                   "fio.open('"..file_name.."', "..
+                   "{'O_CREAT', 'O_TRUNC', 'O_WRONLY'}, 777):close() end)";
+test_run:cmd("setopt delimiter ''");
+server = io.popen('tarantool -i', 'w')
+server:write(on_shutdown_cmd)
+server:close()
+fio.path.lexists(file_name) == true
+os.remove(file_name)