AdGuardHome/internal/stats/stats_internal_test.go

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Pull request: 4358 stats races Merge in DNS/adguard-home from 4358-stats-races to master Updates #4358 Squashed commit of the following: commit 162d17b04d95adad21fb9b3c5a6fb64df2e037ec Merge: 17732cfa d4c3a43b Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Aug 17 14:04:20 2022 +0300 Merge branch 'master' into 4358-stats-races commit 17732cfa0f3b2589bf2c252697eee1d6b358a66c Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Aug 17 13:53:42 2022 +0300 stats: imp docs, locking commit 4ee090869af0fa2b777c12027c3b77d5acd6e4de Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Tue Aug 16 20:26:19 2022 +0300 stats: revert const commit a7681a1b882cef04511fcd5d569f5abe2f955239 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Tue Aug 16 20:23:00 2022 +0300 stats: imp concurrency commit a6c6c1a0572e4201cd24644fd3f86f51fc27f633 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Tue Aug 16 19:51:30 2022 +0300 stats: imp code, tests, docs commit 954196b49f5ad91d91f445ff656e63c318e4124c Merge: 281e00da 6e63757f Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Tue Aug 16 13:07:32 2022 +0300 Merge branch 'master' into 4358-stats-races commit 281e00daf781d045269584ce0158eed1d77918df Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Fri Aug 12 16:22:18 2022 +0300 stats: imp closing commit ed036d9aa7e25498869edfb866b6e923538970eb Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Fri Aug 12 16:11:12 2022 +0300 stats: imp tests more commit f848a12487ecd2afc8416e800510090cc1be7330 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Fri Aug 12 13:54:19 2022 +0300 stats: imp tests, code commit 60e11f042d51ec68850143129e61c701c5e4f3a4 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Aug 11 16:36:07 2022 +0300 stats: fix test commit 6d97f1db093b5ce0d37984ff96a9ef6f4e02dba1 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Aug 11 14:53:21 2022 +0300 stats: imp code, docs commit 20c70c2847b0de6c7f9271a8d9a831175ed0c499 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Aug 10 20:53:36 2022 +0300 stats: imp shared memory safety commit 8b3945670a190bab070171e6b4976edab1e3e2a2 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Aug 10 17:22:55 2022 +0300 stats: imp code
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package stats
import (
"fmt"
"path/filepath"
"sync"
"sync/atomic"
Pull request: 4358 stats races Merge in DNS/adguard-home from 4358-stats-races to master Updates #4358 Squashed commit of the following: commit 162d17b04d95adad21fb9b3c5a6fb64df2e037ec Merge: 17732cfa d4c3a43b Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Aug 17 14:04:20 2022 +0300 Merge branch 'master' into 4358-stats-races commit 17732cfa0f3b2589bf2c252697eee1d6b358a66c Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Aug 17 13:53:42 2022 +0300 stats: imp docs, locking commit 4ee090869af0fa2b777c12027c3b77d5acd6e4de Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Tue Aug 16 20:26:19 2022 +0300 stats: revert const commit a7681a1b882cef04511fcd5d569f5abe2f955239 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Tue Aug 16 20:23:00 2022 +0300 stats: imp concurrency commit a6c6c1a0572e4201cd24644fd3f86f51fc27f633 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Tue Aug 16 19:51:30 2022 +0300 stats: imp code, tests, docs commit 954196b49f5ad91d91f445ff656e63c318e4124c Merge: 281e00da 6e63757f Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Tue Aug 16 13:07:32 2022 +0300 Merge branch 'master' into 4358-stats-races commit 281e00daf781d045269584ce0158eed1d77918df Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Fri Aug 12 16:22:18 2022 +0300 stats: imp closing commit ed036d9aa7e25498869edfb866b6e923538970eb Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Fri Aug 12 16:11:12 2022 +0300 stats: imp tests more commit f848a12487ecd2afc8416e800510090cc1be7330 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Fri Aug 12 13:54:19 2022 +0300 stats: imp tests, code commit 60e11f042d51ec68850143129e61c701c5e4f3a4 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Aug 11 16:36:07 2022 +0300 stats: fix test commit 6d97f1db093b5ce0d37984ff96a9ef6f4e02dba1 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Aug 11 14:53:21 2022 +0300 stats: imp code, docs commit 20c70c2847b0de6c7f9271a8d9a831175ed0c499 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Aug 10 20:53:36 2022 +0300 stats: imp shared memory safety commit 8b3945670a190bab070171e6b4976edab1e3e2a2 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Aug 10 17:22:55 2022 +0300 stats: imp code
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"testing"
"time"
Pull request: 4358 stats races Merge in DNS/adguard-home from 4358-stats-races to master Updates #4358 Squashed commit of the following: commit 162d17b04d95adad21fb9b3c5a6fb64df2e037ec Merge: 17732cfa d4c3a43b Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Aug 17 14:04:20 2022 +0300 Merge branch 'master' into 4358-stats-races commit 17732cfa0f3b2589bf2c252697eee1d6b358a66c Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Aug 17 13:53:42 2022 +0300 stats: imp docs, locking commit 4ee090869af0fa2b777c12027c3b77d5acd6e4de Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Tue Aug 16 20:26:19 2022 +0300 stats: revert const commit a7681a1b882cef04511fcd5d569f5abe2f955239 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Tue Aug 16 20:23:00 2022 +0300 stats: imp concurrency commit a6c6c1a0572e4201cd24644fd3f86f51fc27f633 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Tue Aug 16 19:51:30 2022 +0300 stats: imp code, tests, docs commit 954196b49f5ad91d91f445ff656e63c318e4124c Merge: 281e00da 6e63757f Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Tue Aug 16 13:07:32 2022 +0300 Merge branch 'master' into 4358-stats-races commit 281e00daf781d045269584ce0158eed1d77918df Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Fri Aug 12 16:22:18 2022 +0300 stats: imp closing commit ed036d9aa7e25498869edfb866b6e923538970eb Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Fri Aug 12 16:11:12 2022 +0300 stats: imp tests more commit f848a12487ecd2afc8416e800510090cc1be7330 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Fri Aug 12 13:54:19 2022 +0300 stats: imp tests, code commit 60e11f042d51ec68850143129e61c701c5e4f3a4 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Aug 11 16:36:07 2022 +0300 stats: fix test commit 6d97f1db093b5ce0d37984ff96a9ef6f4e02dba1 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Aug 11 14:53:21 2022 +0300 stats: imp code, docs commit 20c70c2847b0de6c7f9271a8d9a831175ed0c499 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Aug 10 20:53:36 2022 +0300 stats: imp shared memory safety commit 8b3945670a190bab070171e6b4976edab1e3e2a2 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Aug 10 17:22:55 2022 +0300 stats: imp code
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"github.com/AdguardTeam/golibs/testutil"
Pull request 1736: 4299-querylog-stats-api Merge in DNS/adguard-home from 4299-querylog-stats-api to master Updates #1717. Updates #4299. Squashed commit of the following: commit 5b706b7997a536bc4fd2c532fb89ca5ab3536848 Merge: 48b62b0f 306c1983 Author: Stanislav Chzhen <s.chzhen@adguard.com> Date: Wed Mar 22 13:53:09 2023 +0300 Merge branch 'master' into 4299-querylog-stats-api commit 48b62b0f1882f1ad120c6cdd90cd7dd8cb8a7738 Author: Vladislav Abdulmyanov <v.abdulmyanov@adguard.com> Date: Wed Mar 22 12:25:04 2023 +0200 client: fix styles, add titles and descrs commit 97e31cff70d05b51bd0e5ea2d20e8e7a251a7e41 Author: Vladislav Abdulmyanov <v.abdulmyanov@adguard.com> Date: Tue Mar 21 18:38:12 2023 +0200 client: add ignored domains for querylog commit 24d75c4376382205ae6b8f731b1cd23d517772c9 Author: Vladislav Abdulmyanov <v.abdulmyanov@adguard.com> Date: Tue Mar 21 18:21:13 2023 +0200 client: add ignore domains for stats commit eefc3891d01f90af79fdac9ba8eea06d4d54a0bc Merge: 978675ea 1daabb97 Author: Stanislav Chzhen <s.chzhen@adguard.com> Date: Tue Mar 21 10:53:35 2023 +0300 Merge branch 'master' into 4299-querylog-stats-api commit 978675ea2c07bf248b4c8f26ebdf78cf59a12ef5 Author: Stanislav Chzhen <s.chzhen@adguard.com> Date: Tue Mar 21 10:53:11 2023 +0300 openapi: fix chlog commit 2ed33007aade115d38b0ca582206cc10678b084c Author: Stanislav Chzhen <s.chzhen@adguard.com> Date: Mon Mar 20 17:49:07 2023 +0300 home: fix tests commit 6af11520c164553ee9fce8f214ea169672188d7e Author: Stanislav Chzhen <s.chzhen@adguard.com> Date: Mon Mar 20 17:40:16 2023 +0300 home: fix typo commit 56acdfde5b1ee8d16b232c1293b91affbe319ad1 Merge: 319da34d 48431f8b Author: Stanislav Chzhen <s.chzhen@adguard.com> Date: Mon Mar 20 17:32:58 2023 +0300 Merge branch 'master' into 4299-querylog-stats-api commit 319da34de41ec84310b23bba2ad79c8a3a4c14ff Author: Stanislav Chzhen <s.chzhen@adguard.com> Date: Fri Mar 3 17:34:38 2023 +0300 querylog: fix docs commit d5a8f24d5b336e7bdbbca18069f6ede8c96bcc2c Author: Stanislav Chzhen <s.chzhen@adguard.com> Date: Fri Mar 3 11:42:00 2023 +0300 stats: fix docs commit e0cbfc1c4078180a05835ce7587e9f45484adc81 Merge: 4743c810 012e5beb Author: Stanislav Chzhen <s.chzhen@adguard.com> Date: Wed Mar 1 18:45:17 2023 +0300 Merge branch 'master' into 4299-querylog-stats-api commit 4743c81038052b9e0ca29ae5f1565021d36ca1ef Author: Stanislav Chzhen <s.chzhen@adguard.com> Date: Wed Mar 1 18:14:16 2023 +0300 all: imp code; fix time conversion commit 34310cffd7e331d098c535590245387051674fa8 Author: Stanislav Chzhen <s.chzhen@adguard.com> Date: Wed Mar 1 12:34:11 2023 +0300 chlog: restore order commit cadd864a66655242948f1cb16e6d4945c0235d7e Merge: 2f3e25be bb226434 Author: Stanislav Chzhen <s.chzhen@adguard.com> Date: Wed Mar 1 12:26:06 2023 +0300 Merge branch 'master' into 4299-querylog-stats-api commit 2f3e25bee56d2c6ddcf4aa2fc6a1dc51ed9b06e1 Author: Stanislav Chzhen <s.chzhen@adguard.com> Date: Wed Mar 1 12:25:14 2023 +0300 all: fix fmt commit d54022baa6c8a3d0d3c308a9b6b1a6a9dc6ac7b6 Author: Stanislav Chzhen <s.chzhen@adguard.com> Date: Tue Feb 28 16:16:40 2023 +0300 all: imp code; fix chlog commit df22de91f59a51194c55e7bcbe5bc3fcc60cb8e3 Merge: e1ea4797 a772212d Author: Stanislav Chzhen <s.chzhen@adguard.com> Date: Mon Feb 27 17:24:09 2023 +0300 Merge branch 'master' into 4299-querylog-stats-api commit e1ea4797af974c36f06683ffc6eaaae917921a43 Merge: d7db0a5a bb80a7c2 Author: Stanislav Chzhen <s.chzhen@adguard.com> Date: Mon Feb 27 17:23:20 2023 +0300 Merge branch 'master' into 4299-querylog-stats-api commit d7db0a5af1e1f49f6174c1c42e6d9306f2381d16 Author: Stanislav Chzhen <s.chzhen@adguard.com> Date: Mon Feb 27 17:12:20 2023 +0300 all: imp docs ... and 15 more commits
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"github.com/AdguardTeam/golibs/timeutil"
Pull request: 4358 stats races Merge in DNS/adguard-home from 4358-stats-races to master Updates #4358 Squashed commit of the following: commit 162d17b04d95adad21fb9b3c5a6fb64df2e037ec Merge: 17732cfa d4c3a43b Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Aug 17 14:04:20 2022 +0300 Merge branch 'master' into 4358-stats-races commit 17732cfa0f3b2589bf2c252697eee1d6b358a66c Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Aug 17 13:53:42 2022 +0300 stats: imp docs, locking commit 4ee090869af0fa2b777c12027c3b77d5acd6e4de Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Tue Aug 16 20:26:19 2022 +0300 stats: revert const commit a7681a1b882cef04511fcd5d569f5abe2f955239 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Tue Aug 16 20:23:00 2022 +0300 stats: imp concurrency commit a6c6c1a0572e4201cd24644fd3f86f51fc27f633 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Tue Aug 16 19:51:30 2022 +0300 stats: imp code, tests, docs commit 954196b49f5ad91d91f445ff656e63c318e4124c Merge: 281e00da 6e63757f Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Tue Aug 16 13:07:32 2022 +0300 Merge branch 'master' into 4358-stats-races commit 281e00daf781d045269584ce0158eed1d77918df Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Fri Aug 12 16:22:18 2022 +0300 stats: imp closing commit ed036d9aa7e25498869edfb866b6e923538970eb Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Fri Aug 12 16:11:12 2022 +0300 stats: imp tests more commit f848a12487ecd2afc8416e800510090cc1be7330 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Fri Aug 12 13:54:19 2022 +0300 stats: imp tests, code commit 60e11f042d51ec68850143129e61c701c5e4f3a4 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Aug 11 16:36:07 2022 +0300 stats: fix test commit 6d97f1db093b5ce0d37984ff96a9ef6f4e02dba1 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Aug 11 14:53:21 2022 +0300 stats: imp code, docs commit 20c70c2847b0de6c7f9271a8d9a831175ed0c499 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Aug 10 20:53:36 2022 +0300 stats: imp shared memory safety commit 8b3945670a190bab070171e6b4976edab1e3e2a2 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Aug 10 17:22:55 2022 +0300 stats: imp code
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"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
// TODO(e.burkov): Use more realistic data.
func TestStatsCollector(t *testing.T) {
ng := func(_ *unitDB) uint64 { return 0 }
units := make([]*unitDB, 720)
t.Run("hours", func(t *testing.T) {
statsData := statsCollector(units, 0, Hours, ng)
assert.Len(t, statsData, 720)
})
t.Run("days", func(t *testing.T) {
for i := 0; i != 25; i++ {
statsData := statsCollector(units, uint32(i), Days, ng)
require.Lenf(t, statsData, 30, "i=%d", i)
}
})
}
func TestStats_races(t *testing.T) {
var r uint32
idGen := func() (id uint32) { return atomic.LoadUint32(&r) }
conf := Config{
Pull request 1736: 4299-querylog-stats-api Merge in DNS/adguard-home from 4299-querylog-stats-api to master Updates #1717. Updates #4299. Squashed commit of the following: commit 5b706b7997a536bc4fd2c532fb89ca5ab3536848 Merge: 48b62b0f 306c1983 Author: Stanislav Chzhen <s.chzhen@adguard.com> Date: Wed Mar 22 13:53:09 2023 +0300 Merge branch 'master' into 4299-querylog-stats-api commit 48b62b0f1882f1ad120c6cdd90cd7dd8cb8a7738 Author: Vladislav Abdulmyanov <v.abdulmyanov@adguard.com> Date: Wed Mar 22 12:25:04 2023 +0200 client: fix styles, add titles and descrs commit 97e31cff70d05b51bd0e5ea2d20e8e7a251a7e41 Author: Vladislav Abdulmyanov <v.abdulmyanov@adguard.com> Date: Tue Mar 21 18:38:12 2023 +0200 client: add ignored domains for querylog commit 24d75c4376382205ae6b8f731b1cd23d517772c9 Author: Vladislav Abdulmyanov <v.abdulmyanov@adguard.com> Date: Tue Mar 21 18:21:13 2023 +0200 client: add ignore domains for stats commit eefc3891d01f90af79fdac9ba8eea06d4d54a0bc Merge: 978675ea 1daabb97 Author: Stanislav Chzhen <s.chzhen@adguard.com> Date: Tue Mar 21 10:53:35 2023 +0300 Merge branch 'master' into 4299-querylog-stats-api commit 978675ea2c07bf248b4c8f26ebdf78cf59a12ef5 Author: Stanislav Chzhen <s.chzhen@adguard.com> Date: Tue Mar 21 10:53:11 2023 +0300 openapi: fix chlog commit 2ed33007aade115d38b0ca582206cc10678b084c Author: Stanislav Chzhen <s.chzhen@adguard.com> Date: Mon Mar 20 17:49:07 2023 +0300 home: fix tests commit 6af11520c164553ee9fce8f214ea169672188d7e Author: Stanislav Chzhen <s.chzhen@adguard.com> Date: Mon Mar 20 17:40:16 2023 +0300 home: fix typo commit 56acdfde5b1ee8d16b232c1293b91affbe319ad1 Merge: 319da34d 48431f8b Author: Stanislav Chzhen <s.chzhen@adguard.com> Date: Mon Mar 20 17:32:58 2023 +0300 Merge branch 'master' into 4299-querylog-stats-api commit 319da34de41ec84310b23bba2ad79c8a3a4c14ff Author: Stanislav Chzhen <s.chzhen@adguard.com> Date: Fri Mar 3 17:34:38 2023 +0300 querylog: fix docs commit d5a8f24d5b336e7bdbbca18069f6ede8c96bcc2c Author: Stanislav Chzhen <s.chzhen@adguard.com> Date: Fri Mar 3 11:42:00 2023 +0300 stats: fix docs commit e0cbfc1c4078180a05835ce7587e9f45484adc81 Merge: 4743c810 012e5beb Author: Stanislav Chzhen <s.chzhen@adguard.com> Date: Wed Mar 1 18:45:17 2023 +0300 Merge branch 'master' into 4299-querylog-stats-api commit 4743c81038052b9e0ca29ae5f1565021d36ca1ef Author: Stanislav Chzhen <s.chzhen@adguard.com> Date: Wed Mar 1 18:14:16 2023 +0300 all: imp code; fix time conversion commit 34310cffd7e331d098c535590245387051674fa8 Author: Stanislav Chzhen <s.chzhen@adguard.com> Date: Wed Mar 1 12:34:11 2023 +0300 chlog: restore order commit cadd864a66655242948f1cb16e6d4945c0235d7e Merge: 2f3e25be bb226434 Author: Stanislav Chzhen <s.chzhen@adguard.com> Date: Wed Mar 1 12:26:06 2023 +0300 Merge branch 'master' into 4299-querylog-stats-api commit 2f3e25bee56d2c6ddcf4aa2fc6a1dc51ed9b06e1 Author: Stanislav Chzhen <s.chzhen@adguard.com> Date: Wed Mar 1 12:25:14 2023 +0300 all: fix fmt commit d54022baa6c8a3d0d3c308a9b6b1a6a9dc6ac7b6 Author: Stanislav Chzhen <s.chzhen@adguard.com> Date: Tue Feb 28 16:16:40 2023 +0300 all: imp code; fix chlog commit df22de91f59a51194c55e7bcbe5bc3fcc60cb8e3 Merge: e1ea4797 a772212d Author: Stanislav Chzhen <s.chzhen@adguard.com> Date: Mon Feb 27 17:24:09 2023 +0300 Merge branch 'master' into 4299-querylog-stats-api commit e1ea4797af974c36f06683ffc6eaaae917921a43 Merge: d7db0a5a bb80a7c2 Author: Stanislav Chzhen <s.chzhen@adguard.com> Date: Mon Feb 27 17:23:20 2023 +0300 Merge branch 'master' into 4299-querylog-stats-api commit d7db0a5af1e1f49f6174c1c42e6d9306f2381d16 Author: Stanislav Chzhen <s.chzhen@adguard.com> Date: Mon Feb 27 17:12:20 2023 +0300 all: imp docs ... and 15 more commits
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UnitID: idGen,
Filename: filepath.Join(t.TempDir(), "./stats.db"),
Limit: timeutil.Day,
}
s, err := New(conf)
require.NoError(t, err)
s.Start()
startTime := time.Now()
testutil.CleanupAndRequireSuccess(t, s.Close)
writeFunc := func(start, fin *sync.WaitGroup, waitCh <-chan unit, i int) {
e := Entry{
Domain: fmt.Sprintf("example-%d.org", i),
Client: fmt.Sprintf("client_%d", i),
Result: Result(i)%(resultLast-1) + 1,
Time: uint32(time.Since(startTime).Milliseconds()),
}
start.Done()
defer fin.Done()
<-waitCh
s.Update(e)
}
readFunc := func(start, fin *sync.WaitGroup, waitCh <-chan unit) {
start.Done()
defer fin.Done()
<-waitCh
_, _ = s.getData(24)
}
const (
roundsNum = 3
writersNum = 10
readersNum = 5
)
for round := 0; round < roundsNum; round++ {
atomic.StoreUint32(&r, uint32(round))
startWG, finWG := &sync.WaitGroup{}, &sync.WaitGroup{}
waitCh := make(chan unit)
for i := 0; i < writersNum; i++ {
startWG.Add(1)
finWG.Add(1)
go writeFunc(startWG, finWG, waitCh, i)
}
for i := 0; i < readersNum; i++ {
startWG.Add(1)
finWG.Add(1)
go readFunc(startWG, finWG, waitCh)
}
startWG.Wait()
close(waitCh)
finWG.Wait()
}
}