IM port fixes: fix crash on startup, add more error checking, get rid of unnecessary code.

server-tools/instance-manager/commands.cc:
  fix memory leak
server-tools/instance-manager/guardian.cc:
  don't check pthread_mutex_lock/unlock return value, as it never returns error if properly
  used (no self deadlocks) and initialized
server-tools/instance-manager/guardian.h:
  prototype fixed
server-tools/instance-manager/instance_map.cc:
  don't check pthread_mutex_lock/unlock status, as it never returns error if
  properly used (no self deadlocks) and initialized
server-tools/instance-manager/instance_map.h:
  prototype fixed
server-tools/instance-manager/listener.cc:
  initialize highest-numbered descriptor to 0 for select before setting it with max(n, sockets[i]),
  ifdef unix-specific code
server-tools/instance-manager/manager.cc:
  remove commented stuff
server-tools/instance-manager/options.cc:
  fix crash in load_defaults, which happened on all Unix systems due to
  const char *Options::config_file= NULL. Check return value for GetModuleFileName.
  Get rid of obscure default_config_file[FN_REFLEN]= "/etc/my.cnf"; which was never used

1 files changed, 2 insertions, 2 deletions

diff --git a/server-tools/instance-manager/instance_map.h b/server-tools/instance-manager/instance_map.h
index 666a16c7040..47037e0d433 100644
--- a/server-tools/instance-manager/instance_map.h
+++ b/server-tools/instance-manager/instance_map.h
@@ -60,8 +60,8 @@ public:
   Instance *find(const char *name, uint name_len);
 
   int flush_instances();
-  int lock();
-  int unlock();
+  void lock();
+  void unlock();
   int init();
 
   Instance_map(const char *default_mysqld_path_arg);