fix undefined processExists error

[proditis]

just a copy of daemon_darwin to fix daemon/daemon.go:90:5: undefined: processExists

I tried changing the headers to make the daemon_darwin be used but it kept failing.

//go:build darwin && openbsd
// +build darwin,openbsd

Is this command i'm using to cross-compile easeprobe wrong?

GOOS=openbsd GOARCH=amd64 go build -a -ldflags '-s -w -extldflags "-static"' -gcflags=-G=3 -o $PWD/build/bin/easeprobe.obsd $PWD/cmd/easeprobe

[haoel]

This is a very good finding.

I realize I made a mistake - the file daemon_linux.go should be daemon_unix.go

• the suffix _linux only for the Linux platform
• the suffix _darwin only for macOS
• the suffix _unix is for all Unix-like platform

So, I think the correct fix as below

1. rename the daemon_linux.go to daemon_unix.go, I believe the OpenBSD and other Unix-like platforms can be compiled successfully.

2. evaluating the daemon_unix.go whether works on the OpenBSD platform, if not, we need the daemon_openbsd.go, and exclude the openbsd in daemon_unix.go

[haoel]

Just Google how to test it (article). we can run the following command to check how the go build choose the file.

cd daemon
GOOS=openbsd GOARCH=amd64 go list -f '{{.GoFiles}}'

[proditis]

• rename the daemon_linux.go to daemon_unix.go, I believe the OpenBSD and other Unix-like platforms can be compiled successfully.

Linux is not a good candidate for BSD systems since these have no /proc (mostly). In this case the best candidate is darwin as it uses closer to BSD API's.

I see two options

1. rename the existing _openbsd to _unix and have a small duplication of code?
2. rename the _darwin => _unix and remove _openbsd?

What do you think?

[haoel]

I like the 2nd one, as darwin is based on the BSD system.

And don't forget to remove the go-build tags in _linux.go, and add the correct tags in _unix.go

[proditis]

The list of files each os pulls

linux: [daemon.go daemon_linux.go]
windows: [daemon.go daemon_windows.go]
darwin: [daemon.go daemon_unix.go]
openbsd: [daemon.go daemon_unix.go]

[haoel]

how about adding freebsd and netbsd?

[proditis]

🤦‍♂️ How could i ever ?!?!?! 😄 adding the rest of the family

[proditis]

What do you think if we make this our fall back for unix systems and simply exclude linux/windows on top ?

There are a lot more unix systems that will work with this one rather with the linux.
!linux && !windows

[haoel]

I like the !linux && !windows

[haoel]

Wonderful! @proditis