mirror of
https://github.com/signalwire/freeswitch.git
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f930eaeec7
git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@8689 d0543943-73ff-0310-b7d9-9358b9ac24b2
319 lines
12 KiB
C++
319 lines
12 KiB
C++
/*
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* FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application - mod_mono
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* Copyright (C) 2008, Michael Giagnocavo <mgg@packetrino.com>
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*
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* Version: MPL 1.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application - mod_mono
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*
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* The Initial Developer of the Original Code is
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* Michael Giagnocavo <mgg@packetrino.com>
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* Portions created by the Initial Developer are Copyright (C)
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Michael Giagnocavo <mgg@packetrino.com>
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*
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* mod_mono.cpp -- FreeSWITCH mod_mono main class
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*
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* Most of mod_mono is implmented in the mod_mono_managed Loader class.
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* The native code just handles getting the Mono runtime up and down
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* and passing pointers into managed code.
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*/
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#include <switch.h>
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SWITCH_BEGIN_EXTERN_C
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#include "freeswitch_mono.h"
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#include <glib.h>
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#include <mono/jit/jit.h>
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#include <mono/metadata/assembly.h>
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#include <mono/metadata/environment.h>
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#include <mono/metadata/threads.h>
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#include <mono/metadata/debug-helpers.h>
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#ifdef WIN32
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#include <shlobj.h>
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#define EXPORT __declspec(dllexport)
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#elif
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#define EXPORT
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#endif /*
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*/
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#define MOD_MONO_MANAGED_DLL "mod_mono_managed.dll"
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mod_mono_globals globals = {
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0};
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SWITCH_MODULE_LOAD_FUNCTION(mod_mono_load);
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SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_mono_shutdown);
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SWITCH_MODULE_DEFINITION(mod_mono, mod_mono_load, mod_mono_shutdown, NULL);
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SWITCH_STANDARD_API(monorun_api_function); /* ExecuteBackground */
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SWITCH_STANDARD_API(mono_api_function); /* Execute */
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SWITCH_STANDARD_APP(mono_app_function); /* Run */
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// Sets up delegates (and anything else needed) on the MonoSession object
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// Called via internalcall
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SWITCH_MOD_DECLARE(void) InitMonoSession(MonoSession * session, MonoObject * dtmfDelegate, MonoObject * hangupDelegate)
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{
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switch_assert(session);
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if (!session)
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return;
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session->setDTMFCallback(NULL, "");
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session->setHangupHook(NULL);
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session->dtmfDelegateHandle = mono_gchandle_new(dtmfDelegate, FALSE);
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session->hangupDelegateHandle = mono_gchandle_new(hangupDelegate, FALSE);
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}
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switch_status_t setMonoDirs()
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{
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#ifdef WIN32
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/* Win32 Mono installs can't figure out their own path
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// Guys in #mono say we should just deploy all the libs we need
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// I think it's much nicer to let the user deal with installing Mono
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// and we'll just look for it in program files. */
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HANDLE hFind;
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WIN32_FIND_DATA findData;
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char progFilesPath[MAX_PATH];
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char findPath[MAX_PATH];
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SHGetFolderPath(NULL, CSIDL_PROGRAM_FILES, NULL, SHGFP_TYPE_CURRENT, progFilesPath);
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switch_snprintf(findPath, MAX_PATH, "%s\\Mono-*", progFilesPath);
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hFind = FindFirstFile(findPath, &findData);
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if (hFind == INVALID_HANDLE_VALUE) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error looking for Mono in Program Files.\n");
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return SWITCH_STATUS_FALSE;
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}
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while ((findData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) != FILE_ATTRIBUTE_DIRECTORY) {
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if (FindNextFile(hFind, &findData) == 0) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Could not find Mono directory in Program Files.\n");
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FindClose(hFind);
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return SWITCH_STATUS_FALSE;
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}
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}
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/* Got it */
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{
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char libPath[MAX_PATH];
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char etcPath[MAX_PATH];
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switch_snprintf(libPath, MAX_PATH, "%s\\%s\\lib", progFilesPath, findData.cFileName);
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switch_snprintf(etcPath, MAX_PATH, "%s\\%s\\etc", progFilesPath, findData.cFileName);
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FindClose(hFind);
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "Using Mono paths '%s' and '%s'.\n", libPath, etcPath);
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mono_set_dirs(libPath, etcPath);
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return SWITCH_STATUS_SUCCESS;
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}
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#elif
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// On other platforms, it should just work if it hasn't been relocated
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mono_set_dirs(NULL, NULL);
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return SWITCH_STATUS_SUCCESS;
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#endif /*
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*/
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}
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switch_status_t loadModMonoManaged()
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{
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/* Find and load mod_mono_managed.exe */
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char filename[256];
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switch_snprintf(filename, 256, "%s%s%s", SWITCH_GLOBAL_dirs.mod_dir, SWITCH_PATH_SEPARATOR, MOD_MONO_MANAGED_DLL);
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globals.domain = mono_jit_init(filename);
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if (!globals.domain) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "mono_jit_init failed.\n");
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return SWITCH_STATUS_FALSE;
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}
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/* Open the assembly */
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globals.mod_mono_asm = mono_domain_assembly_open(globals.domain, filename);
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if (!globals.mod_mono_asm) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "mono_domain_assembly_open failed.\n");
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return SWITCH_STATUS_FALSE;
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}
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return SWITCH_STATUS_SUCCESS;
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}
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MonoMethod * getMethod(const char *name, MonoClass * klass)
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{
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MonoMethodDesc * desc;
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MonoMethod * method;
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desc = mono_method_desc_new(name, TRUE);
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method = mono_method_desc_search_in_class(desc, klass);
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if (!method) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Could not find %s method.\n", name);
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return NULL;
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}
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return method;
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}
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switch_status_t findLoader()
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{
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/* Find loader class and methods */
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MonoImage * img;
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MonoClass * loaderClass;
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img = mono_assembly_get_image(globals.mod_mono_asm);
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loaderClass = mono_class_from_name(img, "FreeSWITCH", "Loader");
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if (!loaderClass) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Could not find FreeSWITCH.Loader class.\n");
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return SWITCH_STATUS_FALSE;
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}
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globals.loadMethod = getMethod("FreeSWITCH.Loader:Load()", loaderClass);
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if (!globals.loadMethod)
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return SWITCH_STATUS_FALSE;
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globals.unloadMethod = getMethod("FreeSWITCH.Loader:Unload()", loaderClass);
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if (!globals.unloadMethod)
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return SWITCH_STATUS_FALSE;
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globals.runMethod = getMethod("FreeSWITCH.Loader:Run(string,intptr)", loaderClass);
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if (!globals.runMethod)
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return SWITCH_STATUS_FALSE;
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globals.executeMethod = getMethod("FreeSWITCH.Loader:Execute(string,intptr,intptr)", loaderClass);
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if (!globals.executeMethod)
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return SWITCH_STATUS_FALSE;
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globals.executeBackgroundMethod = getMethod("FreeSWITCH.Loader:ExecuteBackground(string)", loaderClass);
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if (!globals.executeBackgroundMethod)
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return SWITCH_STATUS_FALSE;
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Found all loader functions.\n");
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return SWITCH_STATUS_SUCCESS;
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}
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SWITCH_MODULE_LOAD_FUNCTION(mod_mono_load)
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{
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/* connect my internal structure to the blank pointer passed to me */
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*module_interface = switch_loadable_module_create_module_interface(pool, modname);
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globals.pool = pool;
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if (setMonoDirs() != SWITCH_STATUS_SUCCESS) {
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return SWITCH_STATUS_FALSE;
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}
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if (loadModMonoManaged() != SWITCH_STATUS_SUCCESS) {
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return SWITCH_STATUS_FALSE;
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}
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if (findLoader() != SWITCH_STATUS_SUCCESS) {
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return SWITCH_STATUS_FALSE;
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}
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/* Not sure if this is necesary on the loading thread */
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mono_thread_attach(globals.domain);
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mono_add_internal_call("FreeSWITCH.Native.MonoSession::InitMonoSession", InitMonoSession);
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/* Run loader */
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MonoObject * objResult;
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MonoObject * exception = NULL;
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objResult = mono_runtime_invoke(globals.loadMethod, NULL, NULL, &exception);
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if (exception) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Load threw an exception.\n");
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mono_print_unhandled_exception(exception);
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return SWITCH_STATUS_FALSE;
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}
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if (*(int *) mono_object_unbox(objResult)) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Load completed successfully.\n");
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} else {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Load did not return true.\n");
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return SWITCH_STATUS_FALSE;
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}
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/* We're good to register */
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switch_api_interface_t *api_interface;
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switch_application_interface_t *app_interface;
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SWITCH_ADD_API(api_interface, "monorun", "Run a module (ExecuteBackground)", monorun_api_function, "<module> [<args>]");
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SWITCH_ADD_API(api_interface, "mono", "Run a module as an API function (Execute)", mono_api_function, "<module> [<args>]");
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SWITCH_ADD_APP(app_interface, "mono", "Run Mono IVR", "Run a Mono IVR on a channel", mono_app_function, "<modulename> [<args>]", SAF_NONE);
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return SWITCH_STATUS_SUCCESS;
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}
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SWITCH_STANDARD_API(monorun_api_function)
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{
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// TODO: Should we be detaching after all this?
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mono_thread_attach(globals.domain);
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if (switch_strlen_zero(cmd)) {
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stream->write_function(stream, "-ERR no args specified!\n");
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return SWITCH_STATUS_SUCCESS;
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}
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// ExecuteBackground(string command)
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void *args[1];
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args[0] = mono_string_new(globals.domain, cmd);
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MonoObject * exception = NULL;
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MonoObject * objResult = mono_runtime_invoke(globals.executeBackgroundMethod, NULL, args, &exception);
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if (exception) {
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stream->write_function(stream, "-ERR FreeSWITCH.Loader.ExecuteBackground threw an exception.\n");
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mono_print_unhandled_exception(exception);
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return SWITCH_STATUS_SUCCESS;
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}
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if (*(int *) mono_object_unbox(objResult)) {
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stream->write_function(stream, "+OK\n");
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} else {
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stream->write_function(stream, "-ERR ExecuteBackground returned false (unknown module?).\n");
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}
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return SWITCH_STATUS_SUCCESS;
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}
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SWITCH_STANDARD_API(mono_api_function)
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{
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mono_thread_attach(globals.domain);
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if (switch_strlen_zero(cmd)) {
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stream->write_function(stream, "-ERR no args specified!\n");
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return SWITCH_STATUS_SUCCESS;
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}
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// Method is: Execute(string command, IntPtr streamPtr, IntPtr eventPtr)
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void *args[3];
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args[0] = mono_string_new(globals.domain, cmd);
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args[1] = &stream; // Address of the arguments
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args[2] = &(stream->param_event);
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MonoObject * exception = NULL;
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MonoObject * objResult = mono_runtime_invoke(globals.executeMethod, NULL, args, &exception);
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if (exception) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Exception trying to execute mono %s.\n", cmd);
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mono_print_unhandled_exception(exception);
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}
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if (!(*(int *) mono_object_unbox(objResult))) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Execute failed for %s (unknown module?).\n", cmd);
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}
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return SWITCH_STATUS_SUCCESS;
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}
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SWITCH_STANDARD_APP(mono_app_function)
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{
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mono_thread_attach(globals.domain);
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if (switch_strlen_zero(data)) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "No args specified!\n");
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}
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// bool Run(string command, IntPtr sessionHandle)
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void *args[2];
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args[0] = mono_string_new(globals.domain, data);
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args[1] = &session;
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MonoObject * exception = NULL;
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MonoObject * objResult = mono_runtime_invoke(globals.runMethod, NULL, args, &exception);
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if (exception) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Exception trying to execute application mono %s.\n", data);
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mono_print_unhandled_exception(exception);
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}
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if (!(*(int *) mono_object_unbox(objResult))) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Application run failed for %s (unknown module?).\n", data);
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}
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}
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SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_mono_shutdown)
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{
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mono_thread_attach(globals.domain);
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MonoObject * ex;
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mono_runtime_invoke(globals.unloadMethod, NULL, NULL, &ex);
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if (ex) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Exception occurred in Loader::Unload.\n");
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mono_print_unhandled_exception(ex);
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}
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mono_runtime_set_shutting_down();
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mono_runtime_cleanup(globals.domain);
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mono_runtime_quit();
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return SWITCH_STATUS_SUCCESS;
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}
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SWITCH_END_EXTERN_C
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