22 lines
420 B
Go
22 lines
420 B
Go
//go:build unix || darwin || linux
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package sysfs
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import (
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"syscall"
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"github.com/tetratelabs/wazero/internal/platform"
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)
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const nonBlockingFileIoSupported = true
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// readFd exposes syscall.Read.
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func readFd(fd uintptr, buf []byte) (int, syscall.Errno) {
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if len(buf) == 0 {
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return 0, 0 // Short-circuit 0-len reads.
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}
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n, err := syscall.Read(int(fd), buf)
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errno := platform.UnwrapOSError(err)
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return n, errno
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}
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