32 lines
609 B
Go
32 lines
609 B
Go
package main
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import (
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"io"
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"os"
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"sync"
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"unsafe"
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llsync "github.com/goplus/lib/c/pthread/sync"
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)
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type L struct {
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mu sync.Mutex
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s string
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i int
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w io.Writer
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}
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func main() {
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l := &L{s: "hello", i: 123, w: os.Stdout}
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println("sizeof(L):", unsafe.Sizeof(L{}))
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println("sizeof(sync.Mutex):", unsafe.Sizeof(sync.Mutex{}))
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println("sizeof(llsync.Mutex):", unsafe.Sizeof(llsync.Mutex{}))
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println("l:", l, "l.s:", l.s, "l.i:", l.i, "l.w:", l.w)
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l.mu.Lock()
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println("locked")
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println("l:", l, "l.s:", l.s, "l.i:", l.i, "l.w:", l.w)
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l.w.Write([]byte(l.s))
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l.w.Write([]byte("\n"))
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l.mu.Unlock()
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}
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