Class: God::System::Process

Inherits:
Object
  • Object
show all
Defined in:
lib/god/system/process.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(pid) ⇒ Process

Returns a new instance of Process.



14
15
16
17
 
# File 'lib/god/system/process.rb', line 14

def initialize(pid)
  @pid = pid.to_i
  @poller = self.class.fetch_system_poller.new(@pid)
end

Class Method Details

.fetch_system_poller ⇒ Object 



6
7
8
9
10
11
12
 
# File 'lib/god/system/process.rb', line 6

def self.fetch_system_poller
  @@poller ||= if SlashProcPoller.usable?
                 SlashProcPoller
               else
                 PortablePoller
               end
end

Instance Method Details

#exists? ⇒ Boolean

Return true if this process is running, false otherwise

Returns:

  • (Boolean) 


20
21
22
 
# File 'lib/god/system/process.rb', line 20

def exists?
  !!::Process.kill(0, @pid) rescue false
end

#memory ⇒ Object

Memory usage in kilobytes (resident set size)



25
26
27
 
# File 'lib/god/system/process.rb', line 25

def memory
  @poller.memory
end

#percent_cpu ⇒ Object

Percentage CPU usage



35
36
37
 
# File 'lib/god/system/process.rb', line 35

def percent_cpu
  @poller.percent_cpu
end

#percent_memory ⇒ Object

Percentage memory usage



30
31
32
 
# File 'lib/god/system/process.rb', line 30

def percent_memory
  @poller.percent_memory
end