mirror of
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40 lines
796 B
Go
40 lines
796 B
Go
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//go:build unix && !tinygo
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package sysfs
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import (
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"syscall"
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"github.com/tetratelabs/wazero/experimental/sys"
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)
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const (
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nonBlockingFileReadSupported = true
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nonBlockingFileWriteSupported = true
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)
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func rmdir(path string) sys.Errno {
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err := syscall.Rmdir(path)
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return sys.UnwrapOSError(err)
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}
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// readFd exposes syscall.Read.
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func readFd(fd uintptr, buf []byte) (int, sys.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 := sys.UnwrapOSError(err)
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return n, errno
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}
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// writeFd exposes syscall.Write.
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func writeFd(fd uintptr, buf []byte) (int, sys.Errno) {
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if len(buf) == 0 {
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return 0, 0 // Short-circuit 0-len writes.
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}
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n, err := syscall.Write(int(fd), buf)
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errno := sys.UnwrapOSError(err)
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return n, errno
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}
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