Class: OsCtl::Cli::Ps::Main
- Defined in:
- lib/osctl/cli/ps/main.rb
Defined Under Namespace
Classes: SlowOsProcess
Constant Summary collapse
- READ_TIMEOUT =
1
Instance Method Summary collapse
- #get_process_list(ctids, filters) ⇒ Object protected
- #list_processes(queue, ctids, filters) ⇒ Object protected
- #print_slow_processes(slow_os_procs) ⇒ Object protected
- #run ⇒ Object
- #set_title(spinner, str) ⇒ Object protected
- #update_loop(queue) ⇒ Object protected
Methods inherited from Command
#cli_opt, #format_output, #osctld_call, #osctld_fmt, #osctld_open, #osctld_resp, run
Instance Method Details
#get_process_list(ctids, filters) ⇒ Object (protected)
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# File 'lib/osctl/cli/ps/main.rb', line 103 def get_process_list(ctids, filters) spinner = TTY::Spinner.new("[:spinner] :title", clear: true) spinner.update(title: 'Listing processes...') spinner.auto_spin list_queue = OsCtl::Lib::Queue.new list_thread = Thread.new { list_processes(list_queue, ctids, filters) } update_queue = OsCtl::Lib::Queue.new update_thread = Thread.new { update_loop(update_queue) } last_os_proc = nil last_time = nil slow_os_procs = [] @update_count = false total = 0 error = false ret = nil loop do v = list_queue.pop(timeout: READ_TIMEOUT) if v.is_a?(Array) ret = v ret << slow_os_procs break end os_proc = v if os_proc.nil? && !error msg = if last_os_proc.nil? 'Taking long to list /proc entries' else sprintf('Taking long to process pid %d', last_os_proc.pid) end set_title(spinner, msg) if last_os_proc slow_os_procs << SlowOsProcess.new(last_os_proc, 0) last_time = Time.now - READ_TIMEOUT end error = true next end if os_proc && last_time slow_os_procs.last.duration = Time.now - last_time last_time = nil end total += 1 last_os_proc = os_proc if os_proc && error set_title(spinner, sprintf('Listing processes... %8d', total)) error = false elsif os_proc set_title(spinner, sprintf('Listing processes... %8d', total)) @update_count = false end end if last_time slow_os_procs.last.duration = Time.now - last_time last_time = nil end update_queue << :stop list_thread.join update_thread.join spinner.stop ret end |
#list_processes(queue, ctids, filters) ⇒ Object (protected)
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# File 'lib/osctl/cli/ps/main.rb', line 183 def list_processes(queue, ctids, filters) pools = {} pl = OsCtl::Lib::ProcessList.new(parse_stat: false, parse_status: false) do |p| # Signal which pid we're on queue << p # Filter processes pool, id = p.ct_id if !ctids.empty? \ && !(pool.nil? && ctids[:host]) \ && !(pool && (ctids.has_key?(id) || ctids.has_key?("#{pool}:#{id}"))) next(false) end # Parse process files p.parse p.cmdline next(false) if filters.detect { |f| !f.match?(p) } pools[pool] = true if pool true end queue << [pl, pools] end |
#print_slow_processes(slow_os_procs) ⇒ Object (protected)
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# File 'lib/osctl/cli/ps/main.rb', line 81 def print_slow_processes(slow_os_procs) warn "\nSlow processes:" slow_os_procs.sort do |a, b| b.duration <=> a.duration end.each do |slow_proc| begin pool, id = slow_proc.os_process.ct_id ctid = pool.nil? ? '[host]' : "#{pool}:#{id}" rescue OsCtl::Lib::Exceptions::OsProcessNotFound ctid = "[unknown]" end warn(sprintf( '%16s: %10d %-18s %.2fs', ctid, slow_proc.os_process.pid, slow_proc.os_process.name, slow_proc.duration, )) end end |
#run ⇒ Object
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# File 'lib/osctl/cli/ps/main.rb', line 10 def run param_selector = OsCtl::Lib::Cli::ParameterSelector.new( all_params: Ps::Columns::COLS, ) if opts[:list] puts param_selector return end require_args!(optional: %w(id), strict: false) filters = opts[:parameter].map { |v| Ps::Filter.new(v) } ctids = {} args.each do |arg| if arg == '-' ctids[:host] = true elsif arg.index(':') pool, id = arg.split(':') ctids["#{pool}:#{id}"] = true else pool = gopts[:pool] id = arg if pool ctids["#{pool}:#{id}"] = true else ctids[id] = true end end end pl, pools, slow_os_procs = get_process_list(ctids, filters) default_cols = if ctids.size == 1 Ps::Columns::DEFAULT_ONE_CT elsif pools.size == 1 Ps::Columns::DEFAULT_ONE_POOL else Ps::Columns::DEFAULT_MULTIPLE_POOLS end out_cols, out_data = Ps::Columns.generate( pl, param_selector.parse_option(opts[:output], default_params: default_cols), gopts[:parsable], ) OsCtl::Lib::Cli::OutputFormatter.print( out_data, cols: out_cols, layout: :columns, header: opts['hide-header'] ? false : true, sort: opts[:sort] && param_selector.parse_option(opts[:sort]), ) if pl.size > 1 warn "#{pl.size} processes" elsif pl.size == 1 warn "#{pl.size} process" else warn "No processes found" end print_slow_processes(slow_os_procs) if slow_os_procs.any? end |
#set_title(spinner, str) ⇒ Object (protected)
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# File 'lib/osctl/cli/ps/main.rb', line 179 def set_title(spinner, str) spinner.tokens[:title] = sprintf('%-40s', str) end |
#update_loop(queue) ⇒ Object (protected)
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# File 'lib/osctl/cli/ps/main.rb', line 211 def update_loop(queue) loop do return if queue.pop(timeout: 0.2) == :stop @update_count = true end end |