add reference counting for shm and destroy them when they are finished

1 files changed, 2 insertions, 1 deletions

diff --git a/src/main/extractor_plugins.c b/src/main/extractor_plugins.c
index 9519298..5b0f20d 100644
--- a/src/main/extractor_plugins.c
+++ b/src/main/extractor_plugins.c
@@ -381,7 +381,8 @@ EXTRACTOR_plugin_remove (struct EXTRACTOR_PluginList *prev,
     prev->next = pos->next;

   if (NULL != pos->channel)

     EXTRACTOR_IPC_channel_destroy_ (pos->channel);

-  if (0 == EXTRACTOR_IPC_shared_memory_change_rc_ (pos->shm, -1))

+  if ( (NULL != pos->shm) &&

+       (0 == EXTRACTOR_IPC_shared_memory_change_rc_ (pos->shm, -1)) )

     EXTRACTOR_IPC_shared_memory_destroy_ (pos->shm);

   free (pos->short_libname);

   free (pos->libname);