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[plugin] Pull plugin from list before calling its shutdown

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This ensures that the plugin's shutdown function won't get called twice
in the event of an error in the plugin's unload sequence triggering a
second Sys_Shutdown, especially if the plugin is being unloaded as a
part of another sub-system's shutdown sequence (which is probably in
itself a design mistake, need to look into that).
This commit is contained in:
Bill Currie 2022-05-13 09:50:24 +09:00
parent 3823ea1858
commit 0dca1e1124
1 changed files with 6 additions and 2 deletions
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8
libs/util/plugin.c
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@ -396,6 +396,11 @@ PI_LoadPlugin (const char *type, const char *name)
VISIBLE qboolean
PI_UnloadPlugin (plugin_t *plugin)
{
// Remove the plugin from the set of loaded plugins to ensure that a
// shutdown triggered by an error in the unload process doesn't try to
// unload the plugin a second time
loaded_plugin_t *lp = Hash_Del (loaded_plugins, plugin->full_name);
if (plugin && plugin->functions && plugin->functions->general
&& plugin->functions->general->shutdown) {
plugin->functions->general->shutdown ();
@ -405,8 +410,7 @@ PI_UnloadPlugin (plugin_t *plugin)
plugin->type);
}
// remove from the table of loaded plugins
Hash_Free (loaded_plugins, Hash_Del (loaded_plugins, plugin->full_name));
Hash_Free (loaded_plugins, lp);
if (!plugin->handle) // we didn't load it
return true;