Class: DeviceAPI::Android::Plugin::Memory

Inherits:
Object
  • Object
show all
Defined in:
lib/device_api/android/plugins/memory.rb

Overview

Class used to provide information about process memory usage and device memory usage

Defined Under Namespace

Classes: MemInfo, RAM

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ Memory

Returns a new instance of Memory.



33
34
35
36
37
 
# File 'lib/device_api/android/plugins/memory.rb', line 33

def initialize(options = {})
  @qualifier = options[:qualifier]
  info = options[:data] || ADB.dumpsys(@qualifier, 'meminfo')
  process_data(info)
end

Instance Attribute Details

#mem_info ⇒ Object

Returns the value of attribute mem_info.



31
32
33
 
# File 'lib/device_api/android/plugins/memory.rb', line 31

def mem_info
  @mem_info
end

#processes ⇒ Object

Returns the value of attribute processes.



31
32
33
 
# File 'lib/device_api/android/plugins/memory.rb', line 31

def processes
  @processes
end

Instance Method Details

#process_data(memory_info) ⇒ Object 



39
40
41
42
43
44
45
46
 
# File 'lib/device_api/android/plugins/memory.rb', line 39

def process_data(memory_info)
  groups = memory_info.chunk { |a| a == '' }.reject { |a,_| a  }.map { |_,b| b }

  raise 'A different ADB result has been received' unless groups[1].first == 'Total PSS by process:'
  @processes = []
  process_total_pss_by_process(groups[1])
  process_ram_info(groups[4])
end

#process_ram_info(data) ⇒ Object

Processes memory used by the device



63
64
65
66
67
68
69
70
71
72
73
 
# File 'lib/device_api/android/plugins/memory.rb', line 63

def process_ram_info(data)
  ram_info = {}
  data.each do |l|
    if /Tuning:\s+(.*)/.match(l)
      ram_info['tuning'] = Regexp.last_match[1]
    elsif /(.*):\s(-?[0-9]*\s\S*)/.match(l)
      ram_info[Regexp.last_match[1].downcase] = Regexp.last_match[2]
    end
  end
  @mem_info = RAM.new(total: ram_info['total ram'], free: ram_info['free ram'], used: ram_info['used ram'], lost: ram_info['lost'], tuning: ram_info['tuning'])
end

#process_total_pss_by_process(data) ⇒ Object

Processes memory used by each running process



54
55
56
57
58
59
60
 
# File 'lib/device_api/android/plugins/memory.rb', line 54

def process_total_pss_by_process(data)
  data.each do |l|
    if /(.*):\s+(.*)\s+\(.*pid\s+(\S*).*\)/.match(l)
      @processes << MemInfo.new(process: Regexp.last_match[2], memory: Regexp.last_match[1], pid: Regexp.last_match[3] )
    end
  end
end

#update ⇒ Object 



48
49
50
51
 
# File 'lib/device_api/android/plugins/memory.rb', line 48

def update
  meminfo = ADB.dumpsys(@qualifier, 'meminfo')
  process_data(meminfo)
end