Module: Procview::StraceArgs
- Defined in:
- lib/procview/straceargs.rb
Constant Summary collapse
- STRUCT =
gobble up the largest matching braces
/\A(?<b>{([^{}]|\g<b>)*}),?\s*/
Class Method Summary collapse
- .afds!(args) ⇒ Object
- .epollevents!(args) ⇒ Object
- .fd!(args) ⇒ Object
- .flags!(args) ⇒ Object
- .name!(args) ⇒ Object
- .nextcomma!(args) ⇒ Object
- .op!(args) ⇒ Object
- .pollfd!(args) ⇒ Object
- .sockaddr!(args) ⇒ Object
Class Method Details
.afds!(args) ⇒ Object
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# File 'lib/procview/straceargs.rb', line 28 def self.afds! args raise "parse error: #{args}" unless args.slice!(/^(\[.*?\]|NULL),?\s*/) afd = $~[1] return [] if afd.start_with? 'NULL' afd.slice(1..-2).split(/\s*,\s*/).map(&:to_i) end |
.epollevents!(args) ⇒ Object
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# File 'lib/procview/straceargs.rb', line 85 def self.epollevents! args raise "parse error: #{args}" unless args.slice! STRUCT evs = $~[1].slice(1..-2) rex = /{(.*?),\s{u32=(\d+),\su64=(\d+)}},?\s*/ eva = [] while ev = evs.slice!(rex) eva.push $~[3].to_i end raise "parse leftover #{evs}" unless evs.empty? return eva end |
.fd!(args) ⇒ Object
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# File 'lib/procview/straceargs.rb', line 23 def self.fd! args raise "parse error: #{args}" unless args.slice! /^(\d+),?\s*/ $~[1].to_i end |
.flags!(args) ⇒ Object
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# File 'lib/procview/straceargs.rb', line 97 def self.flags! args raise "parse error: #{args}" unless args.slice! /^\w+=([^,]+),\s*/ flags = $~[1].split('|').map{|f| f.to_sym} return flags end |
.name!(args) ⇒ Object
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# File 'lib/procview/straceargs.rb', line 35 def self.name! args raise "parse error: #{args}" unless args.slice! /^"(.*?)",?\s*/ return $~[1] end |
.nextcomma!(args) ⇒ Object
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# File 'lib/procview/straceargs.rb', line 18 def self.nextcomma! args raise "parse error: #{args}" unless args.slice! /^([^,]+),?\s*/ $~[1] end |
.op!(args) ⇒ Object
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# File 'lib/procview/straceargs.rb', line 40 def self.op! args raise "parse error: #{args}" unless args.slice! /^(\w+),?\s*/ return $~[1].to_sym end |
.pollfd!(args) ⇒ Object
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# File 'lib/procview/straceargs.rb', line 12 def self.pollfd! args return [] if args.slice! /^0,\s*/ raise "parse error: #{args}" unless args.slice! /^\[{(.*?)}\],?\s*/ $~[1].split(/},{/).map{|m| /^fd=(\d+)/ =~ m; $1.to_i} end |
.sockaddr!(args) ⇒ Object
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# File 'lib/procview/straceargs.rb', line 45 def self.sockaddr! args if args.slice! /^(0|NULL),?\s*/ return nil end raise "parse error: #{args}" unless args.slice! STRUCT soa = $~[1].slice(1..-2) if /^ sa_family=AF_INET,\s* sin_port=htons\((?<port>\d+)\),\s* sin_addr=inet_addr\("(?<host>.*)"\) /x =~ soa return "#{host}:#{port}" elsif /^ sa_family=AF_INET6,\s* sin6_port=htons\((?<port>\d+)\),\s* inet_pton\(AF_INET6,\s*"(?<host>.*)",\s*\&sin6_addr\),\s* sin6_flowinfo=\d+,\s*sin6_scope_id=\d+ /x =~ soa return "#{host}:#{port}" elsif /^ sa_family=AF_FILE,\s* path="(?<path>.*)" /x =~ soa return "file:#{path}" elsif /^ sa_family=AF_NETLINK,\s* pid=(?<pid>\d+),\s* groups=(?<groups>.*) /x =~ soa return "netlink:#{pid}:#{groups}" elsif /^ sa_family=AF_UNSPEC,\s* sa_data="(?<data>.*)" /x =~ soa return "unspec:#{data}" else raise "Invalid sockaddr format: #{soa}" end end |