Class: DtraceStackRecord

Inherits:
Object
  • Object
show all
Defined in:
lib/dtracestackrecord.rb

Overview

A record representing the result of a stack() or ustack() action. Its value is a list of symbolic stack frames:

#<DtraceStackRecord:0x14e24 @value=
        ["libSystem.B.dylib`__sysctl+0xa",
         "libdtrace.dylib`dt_aggregate_go+0x9a",
         "dtrace_api.bundle`dtrace_hdl_go+0x30",
         "libruby.1.dylib`rb_eval_string_wrap+0x40fd",
         "libruby.1.dylib`rb_eval_string_wrap+0x4cdb",
         ...
         "libruby.1.dylib`rb_apply+0x392",
         "libruby.1.dylib`rb_eval_string_wrap+0xe82"]>

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#value ⇒ Object (readonly)

Returns the value of attribute value.



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# File 'lib/dtracestackrecord.rb', line 20

def value
  @value
end

Instance Method Details

#parse(raw) ⇒ Object

Given a stack as a string returned from DTrace, set the value of this record to a list of stack frames.



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# File 'lib/dtracestackrecord.rb', line 24

def parse(raw)
  frames = raw.split(/\n/)
  @value = frames.map {|f| f.lstrip }.select {|f| f.length > 0 }
end