82 lines
1.6 KiB
Go
82 lines
1.6 KiB
Go
package main
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import (
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"context"
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"database/sql"
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"flag"
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"fmt"
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"io"
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"log"
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"os"
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"time"
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"pg/src/with"
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_ "github.com/lib/pq"
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)
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func main() {
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if err := with.Context(run); err != nil {
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panic(err)
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}
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}
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func run(ctx context.Context) error {
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fs := flag.NewFlagSet(os.Args[0], flag.ContinueOnError)
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c := fs.String("c", "postgresql://pulsegres:pulsegres@localhost:15432", "conn string")
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if err := fs.Parse(os.Args[1:]); err != nil {
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panic(err)
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}
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return with.PSQL(ctx, *c, func(pg *sql.DB) error {
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if _, err := pg.ExecContext(ctx, `
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`); err != nil {
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return err
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}
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pub := func(topic string, a any) error {
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return io.EOF
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}
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sub := func(topic, group string) (int, any, error) {
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return 0, nil, io.EOF
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}
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commit := func(topic, group string, offset int) error {
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return io.EOF
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}
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go with.Every(ctx, time.Second, func() {
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for i := 0; i < 2; i++ {
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topic := fmt.Sprintf("topic_%d", i)
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if err := pub(topic, 1); err != nil {
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log.Printf("failed pub: %v", err)
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} else {
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log.Printf("pubbed")
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}
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}
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})
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with.Every(ctx, time.Second, func() {
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if err := func() error {
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for i := 0; i < 2; i++ {
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topic := fmt.Sprintf("topic_%d", i)
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for j := 0; j < 2; j++ {
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group := fmt.Sprintf("group_%d", i)
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if offset, v, err := sub(topic, group); err != nil {
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return err
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} else if err := commit(topic, group, offset); err != nil {
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return err
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} else {
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log.Printf("subbed/committed offset %d: %v", offset, v)
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}
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}
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}
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return nil
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}(); err != nil {
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log.Printf("failed subs: %v", err)
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}
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})
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return ctx.Err()
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})
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}
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