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31 lines
545 B
Go
31 lines
545 B
Go
//go:build !windows
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package rw
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import (
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"syscall"
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"unsafe"
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)
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// Deprecated: use vectorised writer
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func WriteV(fd uintptr, data [][]byte) (int, error) {
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iovecs := make([]syscall.Iovec, len(data))
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for i := range iovecs {
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iovecs[i].Base = &data[i][0]
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iovecs[i].SetLen(len(data[i]))
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}
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var (
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r uintptr
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e syscall.Errno
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)
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for {
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r, _, e = syscall.Syscall(syscall.SYS_WRITEV, fd, uintptr(unsafe.Pointer(&iovecs[0])), uintptr(len(iovecs)))
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if e != syscall.EINTR {
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break
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}
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}
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if e != 0 {
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return 0, e
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}
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return int(r), nil
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}
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