Add async pool (to replace EVENT_LOOP).

[stg.git] / projects / stargazer / plugin_runner.cpp

diff --git a/projects/stargazer/plugin_runner.cpp b/projects/stargazer/plugin_runner.cpp
index 0bf159b8ee5bf58601bbf88a35269e9772060629..8938950fb7655061216b75d9277bd40041316125 100644 (file)
--- a/projects/stargazer/plugin_runner.cpp
+++ b/projects/stargazer/plugin_runner.cpp
@@ -16,284 +16,140 @@
 
 /*
  *    Author : Boris Mikhailenko <stg34@stargazer.dp.ua>
 
 /*
  *    Author : Boris Mikhailenko <stg34@stargazer.dp.ua>

+ *    Author : Maxim Mamontov <faust@stargazer.dp.ua>

  */
 
  */
 

-/*
- $Revision: 1.17 $
- $Date: 2010/09/13 05:52:46 $
- $Author: faust $
- */
+#include "plugin_runner.h"
+
+#include "stg/common.h"

 
 #include <dlfcn.h>
 #include <unistd.h>
 
 
 #include <dlfcn.h>
 #include <unistd.h>
 

-#include "stg/common.h"
-#include "stg/traffcounter.h"
-#include "plugin_runner.h"
-#include "settings_impl.h"
-#include "admins_impl.h"
-#include "tariffs_impl.h"
-#include "users_impl.h"
-#include "services_impl.h"
-#include "corps_impl.h"
+using STG::PluginRunner;
+using STG::Plugin;

 
 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------

-PLUGIN_RUNNER::PLUGIN_RUNNER(const std::string & pFileName,
-                             const MODULE_SETTINGS & ms,
-                             ADMINS_IMPL * a,
-                             TARIFFS_IMPL * t,
-                             USERS_IMPL * u,
-                             SERVICES_IMPL * svc,
-                             CORPORATIONS_IMPL * crp,
-                             TRAFFCOUNTER * tc,
-                             STORE * st,
-                             const SETTINGS_IMPL * s)
-    : pluginFileName(pFileName),
-      pluginSettingFileName(),
-      plugin(NULL),
-      isPluginLoaded(false),
-      errorStr(),
+PluginRunner::PluginRunner(const std::string& fileName,
+                           const std::string& name,
+                           const ModuleSettings& ms,
+                           Admins& admins,
+                           Tariffs& tariffs,
+                           Users& users,
+                           Services& services,
+                           Corporations& corporations,
+                           TraffCounter& traffcounter,
+                           Store& store,
+                           const Settings& settings)
+    : pluginFileName(fileName),
+      pluginName(name),

       libHandle(NULL),
       libHandle(NULL),

-      isRunning(false),
-      admins(a),
-      tariffs(t),
-      users(u),
-      services(svc),
-      corps(crp),
-      store(st),
-      traffCnt(tc),
-      stgSettings(s),
-      modSettings(ms)
+      m_plugin(load(ms, admins, tariffs, users, services, corporations,
+                    traffcounter, store, settings))

 {
 }
 //-----------------------------------------------------------------------------
 {
 }
 //-----------------------------------------------------------------------------

-PLUGIN_RUNNER::PLUGIN_RUNNER(const PLUGIN_RUNNER & rvalue)
-    : pluginFileName(rvalue.pluginFileName),
-      pluginSettingFileName(rvalue.pluginSettingFileName),
-      plugin(rvalue.plugin),
-      isPluginLoaded(rvalue.isPluginLoaded),
-      errorStr(rvalue.errorStr),
-      libHandle(rvalue.libHandle),
-      isRunning(rvalue.isRunning),
-      admins(rvalue.admins),
-      tariffs(rvalue.tariffs),
-      users(rvalue.users),
-      services(rvalue.services),
-      corps(rvalue.corps),
-      store(rvalue.store),
-      traffCnt(rvalue.traffCnt),
-      stgSettings(rvalue.stgSettings),
-      modSettings(rvalue.modSettings)
+PluginRunner::~PluginRunner()

 {
 {

-}
-//-----------------------------------------------------------------------------
-PLUGIN_RUNNER & PLUGIN_RUNNER::operator=(const PLUGIN_RUNNER & rvalue)
-{
-pluginFileName = rvalue.pluginFileName;
-pluginSettingFileName = rvalue.pluginSettingFileName;
-plugin = rvalue.plugin;
-isPluginLoaded = rvalue.isPluginLoaded;
-errorStr = rvalue.errorStr;
-libHandle = rvalue.libHandle;
-isRunning = rvalue.isRunning;
-admins = rvalue.admins;
-tariffs = rvalue.tariffs;
-users = rvalue.users;
-services = rvalue.services;
-corps = rvalue.corps;
-store = rvalue.store;
-traffCnt = rvalue.traffCnt;
-stgSettings = rvalue.stgSettings;
-modSettings = rvalue.modSettings;
-
-return *this;
-}
-//-----------------------------------------------------------------------------
-PLUGIN_RUNNER::~PLUGIN_RUNNER()
-{
-if (isPluginLoaded)
-    {
-    Unload();
-    }
-
-isPluginLoaded = false;
-}
-//-----------------------------------------------------------------------------
-PLUGIN * PLUGIN_RUNNER::GetPlugin()
-{
-if (!isPluginLoaded)
+    delete &m_plugin;
+    if (dlclose(libHandle))

     {
     {

-    errorStr = "Plugin '" + pluginFileName + "' is not loaded yet!";
-    printfd(__FILE__, "PLUGIN_LOADER::GetPlugin() - %s\n", errorStr.c_str());
-    return NULL;
+        errorStr = "Failed to unload plugin '" + pluginFileName + "': " + dlerror();
+        printfd(__FILE__, "PluginRunner::Unload() - %s", errorStr.c_str());

     }
     }

-
-return plugin;

 }
 //-----------------------------------------------------------------------------
 }
 //-----------------------------------------------------------------------------

-int PLUGIN_RUNNER::Start()
+int PluginRunner::Start()

 {
 {

-if (!isPluginLoaded)
-    if (Load())
-        return -1;
-
-if (!plugin)
-    {
-    errorStr = "Plugin '" + pluginFileName + "' was not created!";
-    printfd(__FILE__, "PLUGIN_LOADER::Start() - %s\n", errorStr.c_str());
-    return -1;
-    }
-
-plugin->SetTariffs(tariffs);
-plugin->SetAdmins(admins);
-plugin->SetUsers(users);
-plugin->SetServices(services);
-plugin->SetCorporations(corps);
-plugin->SetTraffcounter(traffCnt);
-plugin->SetStore(store);
-plugin->SetStgSettings(stgSettings);
-
-if (plugin->Start())
-    {
-    errorStr = plugin->GetStrError();
-    return -1;
-    }
-
-return 0;
+    int res = m_plugin.Start();
+    errorStr = m_plugin.GetStrError();
+    return res;

 }
 //-----------------------------------------------------------------------------
 }
 //-----------------------------------------------------------------------------

-int PLUGIN_RUNNER::Stop()
+int PluginRunner::Stop()

 {
 {

-if (!isPluginLoaded)
-    {
-    errorStr = "Plugin '" + pluginFileName + "' was not loaded yet!";
-    printfd(__FILE__, "PLUGIN_LOADER::Stop() - %s\n", errorStr.c_str());
-    return -1;
-    }
-
-if (!plugin)
-    {
-    errorStr = "Plugin '" + pluginFileName + "' was not created!";
-    printfd(__FILE__, "PLUGIN_LOADER::Stop() - %s\n", errorStr.c_str());
-    return -1;
-    }
-
-plugin->Stop();
-
-return 0;
+    int res = m_plugin.Stop();
+    errorStr = m_plugin.GetStrError();
+    return res;

 }
 //-----------------------------------------------------------------------------
 }
 //-----------------------------------------------------------------------------

-int PLUGIN_RUNNER::Reload()
+int PluginRunner::Reload(const ModuleSettings& ms)

 {
 {

-if (!isPluginLoaded)
-    {
-    errorStr = "Plugin '" + pluginFileName + "' was not loaded yet!";
-    printfd(__FILE__, "PLUGIN_LOADER::Reload() - %s\n", errorStr.c_str());
-    return -1;
-    }
-
-if (!plugin)
-    {
-    errorStr = "Plugin '" + pluginFileName + "' was not created!";
-    printfd(__FILE__, "PLUGIN_LOADER::Reload() - %s\n", errorStr.c_str());
-    return -1;
-    }
-
-int res = plugin->Reload();
-errorStr = plugin->GetStrError();
-return res;
+    int res = m_plugin.Reload(ms);
+    errorStr = m_plugin.GetStrError();
+    return res;

 }
 //-----------------------------------------------------------------------------
 }
 //-----------------------------------------------------------------------------

-bool PLUGIN_RUNNER::IsRunning()
+Plugin & PluginRunner::load(const ModuleSettings& ms,
+                            Admins& admins,
+                            Tariffs& tariffs,
+                            Users& users,
+                            Services& services,
+                            Corporations& corporations,
+                            TraffCounter& traffcounter,
+                            Store& store,
+                            const Settings& settings)

 {
 {

-if (!isPluginLoaded)
+    if (pluginFileName.empty())

     {
     {

-    errorStr = "Plugin '" + pluginFileName + "' was not loaded yet!";
-    printfd(__FILE__, "PLUGIN_LOADER::IsRunning() - %s\n", errorStr.c_str());
-    return false;
+        const std::string msg = "Empty plugin file name.";
+        printfd(__FILE__, "PluginRunner::load() - %s\n", msg.c_str());
+        throw Error(msg);

     }
 
     }
 

-if (!plugin)
+    if (access(pluginFileName.c_str(), R_OK))

     {
     {

-    errorStr = "Plugin '" + pluginFileName + "' was not created!";
-    printfd(__FILE__, "PLUGIN_LOADER::IsRunning() - %s\n", errorStr.c_str());
-    return false;
+        const std::string msg = "Plugin file '" + pluginFileName + "' is missing or inaccessible.";
+        printfd(__FILE__, "PluginRunner::load() - %s\n", msg.c_str());
+        throw Error(msg);

     }
 
     }
 

-return plugin->IsRunning();
-}
-//-----------------------------------------------------------------------------
-int PLUGIN_RUNNER::Load()
-{
-if (isPluginLoaded)
-    {
-    errorStr = "Plugin '" + pluginFileName + "' was already loaded!";
-    printfd(__FILE__, "PLUGIN_LOADER::Load() - %s\n", errorStr.c_str());
-    return -1;
-    }
+    libHandle = dlopen(pluginFileName.c_str(), RTLD_NOW);

 
 

-if (pluginFileName.empty())
+    if (!libHandle)

     {
     {

-    errorStr = "Empty plugin file name!";
-    printfd(__FILE__, "PLUGIN_LOADER::Load() - %s\n", errorStr.c_str());
-    return -1;
+        std::string msg = "Error loading plugin '" + pluginFileName + "'";
+        const char* error = dlerror();
+        if (error)
+            msg = msg + ": '" + error + "'";
+        printfd(__FILE__, "PluginRunner::load() - %s\n", msg.c_str());
+        throw Error(msg);

     }
 
     }
 

-libHandle = dlopen(pluginFileName.c_str(), RTLD_NOW);
-
-if (!libHandle)
+    using Getter = Plugin* (*)();
+    auto GetPlugin = reinterpret_cast<Getter>(dlsym(libHandle, "GetPlugin"));
+    if (!GetPlugin)

     {
     {

-    errorStr = "Error loading plugin '"
-        + pluginFileName + "': '" + dlerror() + "'";
-    printfd(__FILE__, "PLUGIN_LOADER::Load() - %s\n", errorStr.c_str());
-    return -1;
+        const std::string msg = "Plugin '" + pluginFileName + "' does not have GetPlugin() function. ";
+        printfd(__FILE__, "PluginRunner::load() - %s\n", msg.c_str());
+        throw Error(msg);

     }
 
     }
 

-isPluginLoaded = true;
+    Plugin* plugin = GetPlugin();

 
 

-PLUGIN * (*GetPlugin)();
-GetPlugin = (PLUGIN * (*)())dlsym(libHandle, "GetPlugin");
-if (!GetPlugin)
+    if (!plugin)

     {
     {

-    errorStr = std::string("GetPlugin() not found. ") + dlerror();
-    printfd(__FILE__, "PLUGIN_LOADER::Load() - %s\n", errorStr.c_str());
-    return -1;
+        const std::string msg = "Failed to create an instance of plugin '" + pluginFileName + "'.";
+        printfd(__FILE__, "PluginRunner::load() - %s\n", msg.c_str());
+        throw Error(msg);

     }
     }

-plugin = GetPlugin();

 
 

-if (!plugin)
-    {
-    errorStr = "Plugin was not created!";
-    printfd(__FILE__, "PLUGIN_LOADER::Load() - %s\n", errorStr.c_str());
-    return -1;
-    }
+    plugin->SetSettings(ms);
+    plugin->SetTariffs(&tariffs);
+    plugin->SetAdmins(&admins);
+    plugin->SetUsers(&users);
+    plugin->SetServices(&services);
+    plugin->SetCorporations(&corporations);
+    plugin->SetTraffcounter(&traffcounter);
+    plugin->SetStore(&store);
+    plugin->SetStgSettings(&settings);

 
 

-plugin->SetSettings(modSettings);
-if (plugin->ParseSettings())
+    if (plugin->ParseSettings())

     {
     {

-    errorStr = plugin->GetStrError();
-    printfd(__FILE__, "PLUGIN_LOADER::Load() - Failed to parse settings. Plugin reports: '%s'\n", errorStr.c_str());
-    return -1;
+        const std::string msg = "Plugin '" + pluginFileName + "' is unable to parse settings. " + plugin->GetStrError();
+        printfd(__FILE__, "PluginRunner::load() - %s\n", msg.c_str());
+        throw Error(msg);

     }
 
     }
 

-return 0;
+    return *plugin;

 }
 }

-//-----------------------------------------------------------------------------
-int PLUGIN_RUNNER::Unload()
-{
-if (isPluginLoaded)
-    {
-    if (dlclose(libHandle))
-        {
-        errorStr = "Failed to unload plugin '";
-        errorStr += pluginFileName + "': ";
-        errorStr += dlerror();
-        printfd(__FILE__, "PLUGIN_LOADER::Unload() - %s", errorStr.c_str());
-        return -1;
-        }
-    plugin = NULL;
-    isPluginLoaded = false;
-    }
-return 0;
-}
-//-----------------------------------------------------------------------------