Update TestConcurrentEvents to use UnixSignals instead of python signals.

[chaoren]

• Typo.

[chaoren]

• Another Typo.

[chaoren]

• Remove unnecessary import.

[ovyalov]

lgtm

lldb/trunk/test/functionalities/thread/concurrent_events/TestConcurrentEvents.py

 """
 A stress-test of sorts for LLDB's handling of threads in the inferior.
 
 This test sets a breakpoint in the main thread where test parameters (numbers of
 threads) can be adjusted, runs the inferior to that point, and modifies the
 locals that control the event thread counts. This test also sets a breakpoint in
 breakpoint_func (the function executed by each 'breakpoint' thread) and a
 watchpoint on a global modified in watchpoint_func. The inferior is continued
 until exit or a crash takes place, and the number of events seen by LLDB is
 verified to match the expected number of events.
 """
 
-import os, signal, time
+import os, time
 import unittest2
 import lldb
 from lldbtest import *
 import lldbutil
 
-# ==================================================
-# Dictionary of signal names
-# ==================================================
-signal_names = dict((getattr(signal, n), n) \
-        for n in dir(signal) if n.startswith('SIG') and '_' not in n )
-
 @skipIfWindows
 class ConcurrentEventsTestCase(TestBase):
 
     mydir = TestBase.compute_mydir(__file__)
 
     #
     ## Tests for multiple threads that generate a single event.
     #
def describe_threads(self):
                 bpid = x.GetStopReasonDataAtIndex(0)
                 bp = self.inferior_target.FindBreakpointByID(bpid)
                 reason_str = "%s hit %d times" % (lldbutil.get_description(bp), bp.GetHitCount())
             elif reason == lldb.eStopReasonWatchpoint:
                 watchid = x.GetStopReasonDataAtIndex(0)
                 watch = self.inferior_target.FindWatchpointByID(watchid)
                 reason_str = "%s hit %d times" % (lldbutil.get_description(watch), watch.GetHitCount())
             elif reason == lldb.eStopReasonSignal:
-                reason_str = "signal %s" % (signal_names[x.GetStopReasonDataAtIndex(0)])
+                signals = self.inferior_process.GetUnixSignals()
+                signal_name = signals.GetSignalAsCString(x.GetStopReasonDataAtIndex(0))
+                reason_str = "signal %s" % signal_name
 
             location = "\t".join([lldbutil.get_description(x.GetFrameAtIndex(i)) for i in range(x.GetNumFrames())])
             ret.append("thread %d %s due to %s at\n\t%s" % (id, status, reason_str, location))
         return ret
 
     def add_breakpoint(self, line, descriptions):
         """ Adds a breakpoint at self.filename:line and appends its description to descriptions, and
             returns the LLDB SBBreakpoint object.