45 lines
950 B
Go
45 lines
950 B
Go
|
package main
|
||
|
|
|
||
|
|
import (
|
||
|
|
"github.com/goplus/llgo/c"
|
||
|
|
"github.com/goplus/llgo/c/fddef"
|
||
|
|
"github.com/goplus/llgo/c/os"
|
||
|
|
_select "github.com/goplus/llgo/c/select"
|
||
|
|
"unsafe"
|
||
|
|
)
|
||
|
|
|
||
|
|
func main() {
|
||
|
|
var readFds fddef.FdSet
|
||
|
|
|
||
|
|
fddef.FdZero(&readFds)
|
||
|
|
|
||
|
|
fddef.Fdset(0, &readFds)
|
||
|
|
|
||
|
|
var tv _select.TimeVal
|
||
|
|
tv.TvSec = 5
|
||
|
|
tv.TvUSec = 0
|
||
|
|
|
||
|
|
c.Printf(c.Str("Waiting for input on stdin...\n"))
|
||
|
|
ret := _select.Select(1, &readFds, nil, nil, &tv)
|
||
|
|
if ret == -1 {
|
||
|
|
c.Perror(c.Str("select error"))
|
||
|
|
c.Exit(1)
|
||
|
|
} else if ret == 0 {
|
||
|
|
c.Printf(c.Str("Timeout occurred! No data after 5 seconds.\n"))
|
||
|
|
} else {
|
||
|
|
if fddef.FdIsset(0, &readFds) != 0 {
|
||
|
|
var buffer [100]c.Char
|
||
|
|
n := os.Read(0, c.Pointer(&buffer[:][0]), unsafe.Sizeof(buffer)-1)
|
||
|
|
if n == -1 {
|
||
|
|
c.Perror(c.Str("read error"))
|
||
|
|
c.Exit(1)
|
||
|
|
} else if n == 0 {
|
||
|
|
c.Printf(c.Str("End of file\n"))
|
||
|
|
} else {
|
||
|
|
buffer[n] = c.Char(0)
|
||
|
|
c.Printf(c.Str("Read %ld bytes: %s\n"), n, &buffer[0])
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|