Service: Support indications on instance property modification.

4 files changed, 361 insertions, 3 deletions

diff --git a/src/service-dbus/CMakeLists.txt b/src/service-dbus/CMakeLists.txt
index 3cc2082..4ba3231 100644
--- a/src/service-dbus/CMakeLists.txt
+++ b/src/service-dbus/CMakeLists.txt
@@ -23,8 +23,15 @@ add_library(${LIBRARY_NAME} SHARED
 # Require libgio
 pkg_check_modules(GIO REQUIRED gio-2.0)
 
-include_directories(${CMAKE_CURRENT_BINARY_DIR} ${CMPI_INCLUDE_DIR} ${GIO_INCLUDE_DIRS})
-target_link_libraries(${LIBRARY_NAME} openlmicommon ${KONKRETCMPI_LIBRARIES} ${GIO_LIBRARIES})
+include_directories(${CMAKE_CURRENT_BINARY_DIR}
+                    ${CMPI_INCLUDE_DIR}
+                    ${GIO_INCLUDE_DIRS}
+                    ${CMAKE_SOURCE_DIR}/src/indmanager)
+target_link_libraries(${LIBRARY_NAME}
+                      openlmicommon
+                      openlmiindmanager
+                      ${KONKRETCMPI_LIBRARIES}
+                      ${GIO_LIBRARIES})
 
 # Create registration file
 cim_registration(${PROVIDER_NAME} ${LIBRARY_NAME} ${MOF} share/openlmi-providers)
diff --git a/src/service-dbus/LMI_ServiceInstanceModificationIndicationProvider.c b/src/service-dbus/LMI_ServiceInstanceModificationIndicationProvider.c
new file mode 100644
index 0000000..1b0edf4
--- /dev/null
+++ b/src/service-dbus/LMI_ServiceInstanceModificationIndicationProvider.c
@@ -0,0 +1,140 @@
+/*
+ * Copyright (C) 2013 Red Hat, Inc.  All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Authors: Vitezslav Crhonek <vcrhonek@redhat.com>
+*/
+
+#include <konkret/konkret.h>
+#include "LMI_ServiceInstanceModificationIndication.h"
+
+#include "ind_manager.h"
+#include "util/serviceutil.h"
+
+static const CMPIBroker* _cb = NULL;
+
+static const char* service_allowed_classes[] = {
+  LMI_Service_ClassName,
+  NULL};
+
+static IMManager *im = NULL;
+static IMError im_err = IM_ERR_OK;
+static ServiceIndication si;
+
+static void LMI_ServiceInstanceModificationIndicationInitialize()
+{
+    im = im_create_manager(NULL, NULL, true, ind_watcher,
+                           IM_IND_MODIFICATION, _cb, &im_err);
+    im_register_filter_classes(im, &service_allowed_classes[0], &im_err);
+}
+
+static CMPIStatus LMI_ServiceInstanceModificationIndicationIndicationCleanup(
+    CMPIIndicationMI* mi,
+    const CMPIContext* cc,
+    CMPIBoolean term)
+{
+    if (!im_destroy_manager(im, cc, &im_err))
+        CMReturn(CMPI_RC_ERR_FAILED);
+    CMReturn(CMPI_RC_OK);
+}
+
+static CMPIStatus LMI_ServiceInstanceModificationIndicationAuthorizeFilter(
+    CMPIIndicationMI* mi,
+    const CMPIContext* cc,
+    const CMPISelectExp* se,
+    const char* ns,
+    const CMPIObjectPath* op,
+    const char* user)
+{
+    if (!im_verify_filter(im, se, cc, &im_err) )
+        CMReturn(CMPI_RC_ERR_INVALID_QUERY);
+    CMReturn(CMPI_RC_OK);
+}
+
+static CMPIStatus LMI_ServiceInstanceModificationIndicationMustPoll(
+    CMPIIndicationMI* mi,
+    const CMPIContext* cc,
+    const CMPISelectExp* se,
+    const char* ns,
+    const CMPIObjectPath* op)
+{
+    CMReturn(CMPI_RC_ERR_NOT_SUPPORTED);
+}
+
+static CMPIStatus LMI_ServiceInstanceModificationIndicationActivateFilter(
+    CMPIIndicationMI* mi,
+    const CMPIContext* cc,
+    const CMPISelectExp* se,
+    const char* ns,
+    const CMPIObjectPath* op,
+    CMPIBoolean firstActivation)
+{
+    if (!im_verify_filter(im, se, cc, &im_err))
+        CMReturn(CMPI_RC_ERR_INVALID_QUERY);
+    if (!im_add_filter(im, (CMPISelectExp*)se, cc, &im_err))
+        CMReturn(CMPI_RC_ERR_FAILED);
+    CMReturn(CMPI_RC_OK);
+}
+
+static CMPIStatus LMI_ServiceInstanceModificationIndicationDeActivateFilter(
+    CMPIIndicationMI* mi,
+    const CMPIContext* cc,
+    const CMPISelectExp* se,
+    const char* ns,
+    const CMPIObjectPath* op,
+    CMPIBoolean lastActivation)
+{
+    if (!im_remove_filter(im, se, cc, &im_err))
+        CMReturn(CMPI_RC_ERR_FAILED);
+    CMReturn(CMPI_RC_OK);
+}
+
+static CMPIStatus LMI_ServiceInstanceModificationIndicationEnableIndications(
+    CMPIIndicationMI* mi,
+    const CMPIContext* cc)
+{
+    char output[1024];
+
+    if (ind_init(&si, output, sizeof(output)) != 0) {
+        lmi_debug("ind_init failed: %s", output);
+        CMReturn(CMPI_RC_ERR_FAILED);
+    }
+    if (!im_start_ind(im, cc, &im_err))
+        CMReturn(CMPI_RC_ERR_FAILED);
+    CMReturn(CMPI_RC_OK);
+}
+
+static CMPIStatus LMI_ServiceInstanceModificationIndicationDisableIndications(
+    CMPIIndicationMI* mi,
+    const CMPIContext* cc)
+{
+    if (!im_stop_ind(im, cc, &im_err))
+        CMReturn(CMPI_RC_ERR_FAILED);
+    ind_destroy(&si);
+    CMReturn(CMPI_RC_OK);
+}
+
+CMIndicationMIStub(
+    LMI_ServiceInstanceModificationIndication,
+    LMI_ServiceInstanceModificationIndication,
+    _cb,
+    LMI_ServiceInstanceModificationIndicationInitialize())
+
+KONKRET_REGISTRATION(
+    "root/cimv2",
+    "LMI_ServiceInstanceModificationIndication",
+    "LMI_ServiceInstanceModificationIndication",
+    "indication")
diff --git a/src/service-dbus/util/serviceutil.c b/src/service-dbus/util/serviceutil.c
index 50b18b9..eed0ad8 100644
--- a/src/service-dbus/util/serviceutil.c
+++ b/src/service-dbus/util/serviceutil.c
@@ -26,7 +26,6 @@
 #include <unistd.h>
 #include <sys/types.h>
 #include <dirent.h>
-#include <gio/gio.h>
 
 #include "serviceutil.h"
 
@@ -346,3 +345,195 @@ unsigned int service_operation(
     g_object_unref(manager_proxy);
     return 0;
 }
+
+/* Indications */
+
+pthread_mutex_t m;
+pthread_cond_t c;
+
+void *loop_thread(
+    void *arg)
+{
+    ServiceIndication *si = (ServiceIndication *) arg;
+
+    lmi_debug("loop_thread enter");
+
+    g_main_loop_run(si->loop);
+
+    lmi_debug("loop_thread exit");
+
+    return NULL;
+}
+
+static void on_signal(
+    GDBusProxy *proxy,
+    gchar *sender_name,
+    gchar *signal_name,
+    GVariant *parameters,
+    gpointer user_data)
+{
+    lmi_debug("on_signal enter, object_path: %s", g_dbus_proxy_get_object_path(proxy));
+
+    pthread_mutex_lock(&m);
+    pthread_cond_signal(&c);
+    pthread_mutex_unlock(&m);
+
+    lmi_debug("on_signal exit");
+}
+
+int ind_init(ServiceIndication *si, char *output, int output_len)
+{
+    GVariant *result = NULL;
+    GError *error = NULL;
+    gchar *tmps = NULL;
+    int i = 0;
+
+    lmi_debug("ind_init enter");
+
+    si->context = g_main_context_new();
+    g_main_context_push_thread_default(si->context);
+
+    si->loop = NULL;
+
+    si->slist = service_find_all(output, output_len);
+    if (si->slist == NULL) {
+        g_main_context_unref(si->context);
+        return -1;
+    }
+
+    si->manager_proxy = g_dbus_proxy_new_for_bus_sync(G_BUS_TYPE_SYSTEM, G_DBUS_PROXY_FLAGS_NONE,
+        NULL, MANAGER_NAME, MANAGER_OP, MANAGER_INTERFACE, NULL, &error);
+    if (!si->manager_proxy) {
+        strncpy(output, error->message, output_len);
+        g_error_free(error);
+        g_main_context_unref(si->context);
+        service_free_slist(si->slist);
+        return -1;
+    }
+
+    si->signal_proxy = malloc(si->slist->cnt * sizeof(GDBusProxy *));
+    if (!si->signal_proxy) {
+        strncpy(output, "Insufficient memory", output_len);
+        g_main_context_unref(si->context);
+        service_free_slist(si->slist);
+        return -1;
+    }
+
+    for (i = 0; i < si->slist->cnt; i++) {
+        result = g_dbus_proxy_call_sync(si->manager_proxy, "LoadUnit", g_variant_new("(s)", si->slist->name[i]),
+            G_DBUS_CALL_FLAGS_NONE, -1, NULL, &error);
+        if (error) {
+            strncpy(output, error->message, output_len);
+            g_error_free(error);
+            ind_destroy(si);
+            return -1;
+        }
+        g_variant_get(result, "(&o)", &tmps);
+
+        error = NULL;
+        si->signal_proxy[i] = g_dbus_proxy_new_for_bus_sync(G_BUS_TYPE_SYSTEM, G_DBUS_PROXY_FLAGS_NONE,
+            NULL, MANAGER_NAME, tmps, PROPERTY_INTERFACE, NULL, &error);
+        g_variant_unref(result);
+        if (si->signal_proxy[i] == NULL)
+        {
+            strncpy(output, error->message, output_len);
+            g_error_free(error);
+            ind_destroy(si);
+            return -1;
+        }
+        g_signal_connect(si->signal_proxy[i], "g-signal", G_CALLBACK(on_signal), NULL);
+    }
+
+    error = NULL;
+    g_dbus_proxy_call_sync(si->manager_proxy, "Subscribe", NULL,
+        G_DBUS_CALL_FLAGS_NONE, -1,  NULL, &error);
+    if (error) {
+        strncpy(output, error->message, output_len);
+        g_error_free(error);
+        ind_destroy(si);
+        return -1;
+    }
+
+    g_main_context_pop_thread_default(si->context);
+
+    si->loop = g_main_loop_new(si->context, FALSE);
+
+    if (pthread_create(&si->p, NULL, loop_thread, si) != 0) {
+        ind_destroy(si);
+        return -1;
+    }
+
+    if (pthread_mutex_init(&m, NULL) != 0) {
+        strncpy(output, "pthread_mutex_init error", output_len);
+        return -1;
+    }
+    if (pthread_cond_init(&c, NULL) != 0) {
+        strncpy(output, "pthread_cond_init error", output_len);
+        return -1;
+    }
+
+    lmi_debug("ind_init exit");
+
+    return 0;
+}
+
+bool ind_watcher(
+    void **data)
+{
+    lmi_debug("ind_watcher enter");
+
+    pthread_mutex_lock(&m);
+    pthread_cond_wait(&c, &m);
+    pthread_mutex_unlock(&m);
+
+    lmi_debug("ind_watcher exit");
+
+    return true;
+}
+
+void ind_destroy(ServiceIndication *si)
+{
+    int i;
+    GError *error = NULL;
+
+    lmi_debug("ind_destroy enter");
+
+    if (si->loop) {
+        g_main_loop_quit(si->loop);
+        if (pthread_join(si->p, NULL) != 0) {
+            lmi_debug("pthread_join error");
+        }
+        g_main_loop_unref(si->loop);
+    }
+
+    if (pthread_cond_destroy(&c) != 0) {
+        lmi_debug("pthread_cond_destroy error");
+    }
+    if (pthread_mutex_destroy(&m) != 0) {
+        lmi_debug("pthread_mutex_destroy error");
+    }
+
+    g_main_context_unref(si->context);
+
+    for (i = 0; i < si->slist->cnt; i++) {
+        if (si->signal_proxy[i]) {
+            g_object_unref(si->signal_proxy[i]);
+        }
+    }
+    free(si->signal_proxy);
+
+    g_dbus_proxy_call_sync(si->manager_proxy, "Unsubscribe", NULL,
+        G_DBUS_CALL_FLAGS_NONE, -1,  NULL, &error);
+    if (error) {
+        lmi_debug("Unsubscribe error: %s", error->message);
+        g_error_free(error);
+    }
+
+    g_object_unref(si->manager_proxy);
+
+    service_free_slist(si->slist);
+
+    lmi_debug("ind_destroy exit");
+
+    return;
+}
diff --git a/src/service-dbus/util/serviceutil.h b/src/service-dbus/util/serviceutil.h
index fbdadad..9bb565c 100644
--- a/src/service-dbus/util/serviceutil.h
+++ b/src/service-dbus/util/serviceutil.h
@@ -23,7 +23,10 @@
 #define SERVICEUTIL_H
 
 #include <stdio.h>
+#include <gio/gio.h>
+#include <pthread.h>
 #include "openlmi.h"
+#include "LMI_Service.h"
 
 #define ARRAY_SIZE(name) (sizeof(name) / sizeof(name[0]))
 
@@ -62,4 +65,21 @@ int service_get_properties(Service *svc, const char *service, char *output, int
 
 unsigned int service_operation(const char *service, const char *method, char *output, int output_len);
 
+/* Indications */
+
+struct _ServiceIndication {
+  SList *slist;
+  GDBusProxy *manager_proxy;
+  GDBusProxy **signal_proxy;
+  GMainContext *context;
+  GMainLoop *loop;
+  pthread_t p;
+};
+
+typedef struct _ServiceIndication ServiceIndication;
+
+int ind_init(ServiceIndication *si, char *output, int output_len);
+bool ind_watcher(void **data);
+void ind_destroy(ServiceIndication *si);
+
 #endif