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" Common functions for providers
" Start the provider and perform a 'poll' request
"
" Returns a valid channel on success
function! provider#Poll(argv, orig_name, log_env, ...) abort
let job = {'rpc': v:true, 'stderr_buffered': v:true}
if a:0
let job = extend(job, a:1)
endif
try
let channel_id = jobstart(a:argv, job)
if channel_id > 0 && rpcrequest(channel_id, 'poll') ==# 'ok'
return channel_id
endif
catch
echomsg v:throwpoint
echomsg v:exception
for row in get(job, 'stderr', [])
echomsg row
endfor
endtry
throw remote#host#LoadErrorForHost(a:orig_name, a:log_env)
endfunction
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