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| /* | |
| * Example DriverPg Go | |
| * @package main | |
| * @author @jeffotoni | |
| * @size 10/09/2018 | |
| */ | |
| package main | |
| import ( | |
| "fmt" | |
| "time" | |
| ) | |
| // driver | |
| type DriverPg struct { | |
| conn string | |
| } | |
| // variavel Global | |
| var instance *DriverPg | |
| // funcao retornando | |
| // o ponteiro de nossa | |
| // struct | |
| func Connect() *DriverPg { | |
| instance = &DriverPg{conn: "DriverConnectPostgres"} | |
| return instance | |
| } | |
| func init() { | |
| Connect() | |
| } | |
| func main() { | |
| // chamada | |
| go func() { | |
| time.Sleep(time.Millisecond * 600) | |
| fmt.Println(instance.conn) | |
| }() | |
| go func() { | |
| fmt.Println(*Connect()) | |
| }() | |
| // 100 goroutine | |
| for i := 0; i < 100; i++ { | |
| go func(ix int) { | |
| time.Sleep(time.Millisecond * 60) | |
| fmt.Println(ix, " = ", instance.conn) | |
| }(i) | |
| } | |
| fmt.Scanln() | |
| } |
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