# HG changeset patch
# User Gregory Szorc <gregory.szorc@gmail.com>
# Date 1471224523 25200
# Node ID 88d3c1ab03a71a5aa9132a2ebf0a962e25cd98b6
# Parent  e3501546f7e4a75892a0cbb65a0755bdb41bfccf
profiling: don't error with statprof when profiling has already started

statprof.reset() asserts if profiling has already started. So don't
call if it profiling is already running.

diff -r e3501546f7e4 -r 88d3c1ab03a7 mercurial/profiling.py
--- a/mercurial/profiling.py	Sun Aug 14 17:51:12 2016 -0700
+++ b/mercurial/profiling.py	Sun Aug 14 18:28:43 2016 -0700
@@ -88,7 +88,9 @@
 
     freq = ui.configint('profiling', 'freq', default=1000)
     if freq > 0:
-        statprof.reset(freq)
+        # Cannot reset when profiler is already active. So silently no-op.
+        if statprof.state.profile_level == 0:
+            statprof.reset(freq)
     else:
         ui.warn(_("invalid sampling frequency '%s' - ignoring\n") % freq)