--- /dev/null
+/*
+ * FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
+ * Copyright (C) 2006, James Martelletti <james@nerdc0re.com>
+ *
+ * Version: MPL 1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
+ *
+ * The Initial Developer of the Original Code is
+ * James Martelletti <james@nerdc0re.com>
+ * Portions created by the Initial Developer are Copyright (C)
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * James Martelletti <james@nerdc0re.com>
+ *
+ *
+ * mod_mono.c -- Embedded mono runtime.
+ *
+ */
+#include <mono/jit/jit.h>
+#include <mono/metadata/assembly.h>
+#include <mono/metadata/environment.h>
+#include <mono/metadata/tokentype.h>
+#include <mono/metadata/debug-helpers.h>
+#include <mono/metadata/image.h>
+#include <mono/metadata/threads.h>
+#include <gc/gc.h>
+#include <switch.h>
+
+#define SWITCH_MONO_MODULES "mono/"
+#define SWITCH_MONO_LIBDIR "lib/"
+#define SWITCH_MONO_ASSEMBLY "Freeswitch.dll"
+
+/* Module functions */
+switch_status_t mod_mono_load_modules(const char *module_dir);
+MonoClass* mod_mono_find_assembly_class(MonoImage *image);
+
+/* Managed functions */
+void mod_mono_switch_console_printf(switch_text_channel_t channel, char *file, const char *func, int line, char *fmt, char *msg);
+
+static const char modname[] = "mod_mono";
+static switch_memory_pool_t *mono_pool = NULL;
+
+static struct {
+ MonoDomain *domain;
+ switch_hash_t *plugins;
+} globals;
+
+typedef struct {
+ MonoAssembly *assembly;
+ MonoClass *class;
+ MonoObject *object;
+} mono_plugin;
+
+static switch_loadable_module_interface_t mono_module_interface = {
+ /*.module_name */ modname,
+};
+
+/*
+ * Load mod_mono module and initialise domain
+ *
+ * This function will initialise the memory pool and plugin hash for this module,
+ * it will then initialise a new mono domain.
+ */
+SWITCH_MOD_DECLARE(switch_status_t) switch_module_load(const switch_loadable_module_interface_t **interface, char *filename)
+{
+ *interface = &mono_module_interface;
+
+ /* Initialise memory pool */
+ if (switch_core_new_memory_pool(&mono_pool) != SWITCH_STATUS_SUCCESS) {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Could not allocate memory pool\n");
+ return SWITCH_STATUS_FALSE;
+ }
+
+ /* Initialise plugin hash */
+ if (switch_core_hash_init(&globals.plugins, mono_pool) != SWITCH_STATUS_SUCCESS) {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Could not initialise plugins hash\n");
+ return SWITCH_STATUS_FALSE;
+ }
+
+ /* Construct the path to the Freeswitch assembly, then check to make sure it exists */
+ switch_size_t assembly_dir_len = strlen(SWITCH_GLOBAL_dirs.base_dir) + strlen(SWITCH_MONO_LIBDIR) + 2; /* Account for / and \0 */
+ switch_size_t assembly_file_len = assembly_dir_len + strlen(SWITCH_MONO_ASSEMBLY);
+ char *assembly_dir = (char *) switch_core_alloc(mono_pool, assembly_dir_len);
+ char *assembly_file = (char *) switch_core_alloc(mono_pool, assembly_file_len);
+
+ apr_finfo_t *finfo = (apr_finfo_t *) switch_core_alloc(mono_pool, sizeof(*finfo));
+
+ snprintf(assembly_dir, assembly_dir_len, "%s/%s", SWITCH_GLOBAL_dirs.base_dir, SWITCH_MONO_LIBDIR);
+ snprintf(assembly_file, assembly_file_len, "%s/%s%s", SWITCH_GLOBAL_dirs.base_dir, SWITCH_MONO_LIBDIR, SWITCH_MONO_ASSEMBLY);
+
+ if (apr_stat(finfo, assembly_file, 0, mono_pool) != SWITCH_STATUS_SUCCESS) {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Could not find Freeswitch.NET assembly");
+ return SWITCH_STATUS_FALSE;
+ }
+
+ /* Mono wants to know where it will be able to find the Freeswitch assembly if it's not in the GAC */
+ if (getenv("MONO_PATH") != NULL) {
+ switch_size_t mono_path_len = strlen(getenv("MONO_PATH")) + strlen(assembly_dir) + 2; /* Account for : and \0 */
+ char *mono_path = (char *) switch_core_alloc(mono_pool, mono_path_len);
+
+ snprintf(mono_path, mono_path_len, "%s:%s", getenv("MONO_PATH"), assembly_dir);
+
+ setenv("MONO_PATH", mono_path, 1);
+ }
+ else
+ setenv("MONO_PATH", assembly_dir, 1);
+
+ /* Now find where our managed modules are */
+ switch_size_t module_dir_len = strlen(SWITCH_GLOBAL_dirs.mod_dir) + strlen(SWITCH_MONO_MODULES) + 2; /* Account for / and \0 */
+ char *module_dir = (char *) switch_core_alloc(mono_pool, module_dir_len);
+
+ snprintf(module_dir, module_dir_len, "%s/%s", SWITCH_GLOBAL_dirs.mod_dir, SWITCH_MONO_MODULES);
+
+ /* Initialise the mono domain */
+ if (!(globals.domain = mono_jit_init("freeswitch"))) {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error initialising mono runtime\n");
+ return SWITCH_STATUS_FALSE;
+ }
+
+ /* Let user know everything initialised fine */
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Initialised mono runtime\n");
+
+ /* Load our modules */
+ if (mod_mono_load_modules(module_dir) != SWITCH_STATUS_SUCCESS) {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Error loading modules\n");
+ return SWITCH_STATUS_FALSE;
+ }
+
+ /* Finally, go through and initialise each plugin before returning SUCCESS */
+ switch_hash_index_t *p = NULL;
+
+ for (p = switch_hash_first(mono_pool, globals.plugins); p; p = switch_hash_next(p)) {
+ mono_plugin *plugin = (mono_plugin *) switch_core_alloc(mono_pool, sizeof(*plugin));
+ switch_size_t *key_length = NULL;
+ const void *key = NULL;
+ void *value = NULL;
+
+ switch_hash_this(p, &key, key_length, &value);
+ plugin = (mono_plugin *) value;
+
+ mono_runtime_object_init(plugin->object);
+ }
+
+ return SWITCH_STATUS_SUCCESS;
+}
+
+/*
+ * Function for cleanly shutting down mod_mono
+ *
+ */
+SWITCH_MOD_DECLARE(switch_status_t) switch_module_shutdown(void)
+{
+ if (globals.domain) {
+ mono_jit_cleanup(globals.domain);
+ globals.domain = NULL;
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Deallocated mono runtime.\n");
+ }
+
+ return SWITCH_STATUS_SUCCESS;
+}
+
+/*
+ * This function will load the managed modules
+ *
+ */
+switch_status_t mod_mono_load_modules(const char *module_dir)
+{
+ apr_dir_t *module_dir_handle;
+ char *file;
+ size_t len;
+ char *ptr;
+ apr_finfo_t finfo;
+ apr_int32_t finfo_flags = APR_FINFO_DIRENT | APR_FINFO_TYPE | APR_FINFO_NAME;
+ const char *ext = ".dll";
+ const char *EXT = ".DLL";
+ MonoAssembly *assembly;
+ MonoImage *image;
+ gpointer iter;
+ iter=NULL;
+ mono_plugin *plugin=NULL;
+
+ if (apr_dir_open(&module_dir_handle, module_dir, mono_pool) != SWITCH_STATUS_SUCCESS)
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Could not open directory: %s\n", module_dir);
+
+ /* Read the modules directory */
+ while (apr_dir_read(&finfo, finfo_flags, module_dir_handle) == SWITCH_STATUS_SUCCESS)
+ {
+ assembly = (MonoAssembly *) switch_core_alloc(mono_pool, sizeof(assembly));
+ image = (MonoImage *) switch_core_alloc(mono_pool, sizeof(image));
+ const char *fname = finfo.fname;
+
+ if (finfo.filetype != APR_REG)
+ continue;
+
+ if (!fname)
+ fname = finfo.name;
+
+ if (!(ptr = (char *) fname))
+ continue;
+
+ if (!strstr(fname, ext) && !strstr(fname, EXT))
+ continue;
+
+ len = strlen(module_dir) + strlen(fname) + 2;
+ file = (char *)switch_core_alloc(mono_pool, len);
+ snprintf(file, len, "%s%s", module_dir, fname);
+
+ /* Attempt to open the assembly */
+ assembly = mono_domain_assembly_open(globals.domain, file);
+
+ if (!assembly) {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Not a valid assembly\n");
+ continue;
+ }
+
+ /* Get the image from assembly */
+ image = mono_assembly_get_image(assembly);
+
+ plugin = (mono_plugin *)switch_core_alloc(mono_pool, sizeof(*plugin));
+
+ plugin->assembly = assembly;
+ plugin->class = mod_mono_find_assembly_class(mono_assembly_get_image(plugin->assembly));
+
+ if (!plugin->class)
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "No plugin class\n");
+
+ plugin->object = mono_object_new(globals.domain, plugin->class);
+
+ switch_core_hash_insert(globals.plugins, (char *) mono_image_get_name(mono_assembly_get_image(assembly)), plugin);
+
+ plugin = NULL;
+ }
+ return SWITCH_STATUS_SUCCESS;
+}
+
+/*
+ *
+ */
+MonoClass* mod_mono_find_assembly_class(MonoImage *image)
+{
+ MonoClass *class, *parent_class = NULL;
+ int i, total;
+
+ total = mono_image_get_table_rows(image, MONO_TABLE_TYPEDEF);
+
+ for (i = 1; i <= total; ++i)
+ {
+ class = mono_class_get(image, MONO_TOKEN_TYPE_DEF | i);
+ parent_class = mono_class_get_parent(class);
+
+ if (parent_class)
+ if (!strcmp("Module", mono_class_get_name(parent_class)))
+ return class;
+ }
+
+ return NULL;
+}
+
+/*
+ *
+ */
+void mono_switch_console_printf(switch_text_channel_t channel, char *file, const char *func, int line, char *fmt, char *msg)
+{
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, msg);
+}
projects / thirdparty / freeswitch.git / commitdiff
