From 25f2c3fa03f0729e4f06fbabbb380f4e2ec25e7d Mon Sep 17 00:00:00 2001 From: Maxim Mamontov Date: Sun, 23 Nov 2014 22:51:20 +0200 Subject: [PATCH] Fixed crash on problems with loading plugins. --- projects/stargazer/plugin_runner.cpp | 40 +++++++++++++++++----------- 1 file changed, 25 insertions(+), 15 deletions(-) diff --git a/projects/stargazer/plugin_runner.cpp b/projects/stargazer/plugin_runner.cpp index bcf68bee..eaf51058 100644 --- a/projects/stargazer/plugin_runner.cpp +++ b/projects/stargazer/plugin_runner.cpp @@ -86,35 +86,45 @@ PLUGIN & PLUGIN_RUNNER::Load(const MODULE_SETTINGS & ms, { if (pluginFileName.empty()) { - errorStr = "Empty plugin file name."; - printfd(__FILE__, "PLUGIN_RUNNER::Load() - %s\n", errorStr.c_str()); - throw Error(errorStr); + const std::string msg = "Empty plugin file name."; + printfd(__FILE__, "PLUGIN_RUNNER::Load() - %s\n", msg.c_str()); + throw Error(msg); + } + +if (access(pluginFileName.c_str(), R_OK)) + { + const std::string msg = "Plugin file '" + pluginFileName + "' is missing or inaccessible."; + printfd(__FILE__, "PLUGIN_RUNNER::Load() - %s\n", msg.c_str()); + throw Error(msg); } libHandle = dlopen(pluginFileName.c_str(), RTLD_NOW); if (!libHandle) { - errorStr = "Error loading plugin '" + pluginFileName + "': '" + dlerror() + "'"; - printfd(__FILE__, "PLUGIN_RUNNER::Load() - %s\n", errorStr.c_str()); - throw Error(errorStr); + std::string msg = "Error loading plugin '" + pluginFileName + "'"; + const char* error = dlerror(); + if (error) + msg = msg + ": '" + error + "'"; + printfd(__FILE__, "PLUGIN_RUNNER::Load() - %s\n", msg.c_str()); + throw Error(msg); } PLUGIN * (*GetPlugin)(); GetPlugin = (PLUGIN * (*)())dlsym(libHandle, "GetPlugin"); if (!GetPlugin) { - errorStr = "Plugin '" + pluginFileName + "' does not have GetPlugin() function. " + dlerror(); - printfd(__FILE__, "PLUGIN_RUNNER::Load() - %s\n", errorStr.c_str()); - throw Error(errorStr); + const std::string msg = "Plugin '" + pluginFileName + "' does not have GetPlugin() function. "; + printfd(__FILE__, "PLUGIN_RUNNER::Load() - %s\n", msg.c_str()); + throw Error(msg); } PLUGIN * plugin = GetPlugin(); if (!plugin) { - errorStr = "Failed to create an instance of plugin '" + pluginFileName + "'."; - printfd(__FILE__, "PLUGIN_RUNNER::Load() - %s\n", errorStr.c_str()); - throw Error(errorStr); + const std::string msg = "Failed to create an instance of plugin '" + pluginFileName + "'."; + printfd(__FILE__, "PLUGIN_RUNNER::Load() - %s\n", msg.c_str()); + throw Error(msg); } plugin->SetSettings(ms); @@ -129,9 +139,9 @@ plugin->SetStgSettings(&settings); if (plugin->ParseSettings()) { - errorStr = "Plugin '" + pluginFileName + "' is unable to parse settings. " + plugin->GetStrError(); - printfd(__FILE__, "PLUGIN_RUNNER::Load() - %s\n", errorStr.c_str()); - throw Error(errorStr); + const std::string msg = "Plugin '" + pluginFileName + "' is unable to parse settings. " + plugin->GetStrError(); + printfd(__FILE__, "PLUGIN_RUNNER::Load() - %s\n", msg.c_str()); + throw Error(msg); } return *plugin; -- 2.43.2