core: add base location API implementation
This commit is contained in:
Dan Williams
320
src/mm-modem-location.c
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320
src/mm-modem-location.c
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@@ -0,0 +1,320 @@
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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details:
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*
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* Copyright (C) 2010 Red Hat, Inc.
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*/
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#include <string.h>
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#include <dbus/dbus-glib.h>
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#include "mm-modem-location.h"
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#include "mm-errors.h"
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#include "mm-callback-info.h"
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#include "mm-marshal.h"
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static void impl_modem_location_enable (MMModemLocation *modem,
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gboolean enable,
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gboolean signal_location,
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DBusGMethodInvocation *context);
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static void impl_modem_location_get_location (MMModemLocation *modem,
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DBusGMethodInvocation *context);
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#include "mm-modem-location-glue.h"
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/*****************************************************************************/
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static void
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async_call_done (MMModem *modem, GError *error, gpointer user_data)
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{
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DBusGMethodInvocation *context = (DBusGMethodInvocation *) user_data;
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if (error)
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dbus_g_method_return_error (context, error);
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else
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dbus_g_method_return (context);
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}
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static void
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async_call_not_supported (MMModemLocation *self,
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MMModemFn callback,
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gpointer user_data)
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{
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MMCallbackInfo *info;
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info = mm_callback_info_new (MM_MODEM (self), callback, user_data);
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info->error = g_error_new_literal (MM_MODEM_ERROR, MM_MODEM_ERROR_OPERATION_NOT_SUPPORTED,
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"Operation not supported");
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mm_callback_info_schedule (info);
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}
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/*****************************************************************************/
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typedef struct {
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gboolean enable;
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gboolean signals_location;
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} LocAuthInfo;
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static void
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loc_auth_info_destroy (gpointer data)
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{
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LocAuthInfo *info = data;
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memset (info, 0, sizeof (LocAuthInfo));
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g_free (info);
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}
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static LocAuthInfo *
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loc_auth_info_new (gboolean enable, gboolean signals_location)
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{
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LocAuthInfo *info;
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info = g_malloc0 (sizeof (LocAuthInfo));
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info->enable = enable;
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info->signals_location = signals_location;
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return info;
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}
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/*****************************************************************************/
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void
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mm_modem_location_enable (MMModemLocation *self,
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gboolean enable,
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gboolean signals_location,
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MMModemFn callback,
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gpointer user_data)
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{
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g_return_if_fail (MM_IS_MODEM_LOCATION (self));
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g_return_if_fail (callback != NULL);
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if (MM_MODEM_LOCATION_GET_INTERFACE (self)->enable)
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MM_MODEM_LOCATION_GET_INTERFACE (self)->enable (self, enable, signals_location, callback, user_data);
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else
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async_call_not_supported (self, callback, user_data);
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}
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/*****************************************************************************/
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static void
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loc_enable_auth_cb (MMAuthRequest *req,
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GObject *owner,
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DBusGMethodInvocation *context,
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gpointer user_data)
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{
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MMModemLocation *self = MM_MODEM_LOCATION (owner);
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LocAuthInfo *info = (LocAuthInfo *) user_data;
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GError *error = NULL;
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/* Return any authorization error, otherwise enable location gathering */
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if (!mm_modem_auth_finish (MM_MODEM (self), req, &error)) {
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dbus_g_method_return_error (context, error);
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g_error_free (error);
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} else
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mm_modem_location_enable (self, info->enable, info->signals_location, async_call_done, context);
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}
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static void
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impl_modem_location_enable (MMModemLocation *modem,
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gboolean enable,
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gboolean signals_location,
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DBusGMethodInvocation *context)
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{
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GError *error = NULL;
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LocAuthInfo *info;
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info = loc_auth_info_new (enable, signals_location);
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/* Make sure the caller is authorized to enable location gathering */
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if (!mm_modem_auth_request (MM_MODEM (modem),
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MM_AUTHORIZATION_LOCATION,
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context,
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loc_enable_auth_cb,
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info,
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loc_auth_info_destroy,
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&error)) {
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dbus_g_method_return_error (context, error);
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g_error_free (error);
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}
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}
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/*****************************************************************************/
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static void
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loc_get_invoke (MMCallbackInfo *info)
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{
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MMModemLocationGetFn callback = (MMModemLocationGetFn) info->callback;
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callback ((MMModemLocation *) info->modem, NULL, info->error, info->user_data);
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}
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static void
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async_get_call_not_supported (MMModemLocation *self,
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MMModemLocationGetFn callback,
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gpointer user_data)
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{
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MMCallbackInfo *info;
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info = mm_callback_info_new_full (MM_MODEM (self),
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loc_get_invoke,
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G_CALLBACK (callback),
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user_data);
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info->error = g_error_new_literal (MM_MODEM_ERROR, MM_MODEM_ERROR_OPERATION_NOT_SUPPORTED,
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"Operation not supported");
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mm_callback_info_schedule (info);
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}
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void
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mm_modem_location_get_location (MMModemLocation *self,
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MMModemLocationGetFn callback,
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gpointer user_data)
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{
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g_return_if_fail (MM_IS_MODEM_LOCATION (self));
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g_return_if_fail (callback != NULL);
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if (MM_MODEM_LOCATION_GET_INTERFACE (self)->get_location)
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MM_MODEM_LOCATION_GET_INTERFACE (self)->get_location (self, callback, user_data);
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else
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async_get_call_not_supported (self, callback, user_data);
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}
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/*****************************************************************************/
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static void
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async_get_call_done (MMModemLocation *self,
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GHashTable *locations,
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GError *error,
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gpointer user_data)
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{
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DBusGMethodInvocation *context = (DBusGMethodInvocation *) user_data;
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if (error)
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dbus_g_method_return_error (context, error);
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else
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dbus_g_method_return (context, locations);
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}
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static void
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loc_get_auth_cb (MMAuthRequest *req,
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GObject *owner,
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DBusGMethodInvocation *context,
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gpointer user_data)
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{
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MMModemLocation *self = MM_MODEM_LOCATION (owner);
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GError *error = NULL;
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/* Return any authorization error, otherwise get the location */
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if (!mm_modem_auth_finish (MM_MODEM (self), req, &error)) {
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dbus_g_method_return_error (context, error);
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g_error_free (error);
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} else
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mm_modem_location_get_location (self, async_get_call_done, context);
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}
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static void
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impl_modem_location_get_location (MMModemLocation *modem,
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DBusGMethodInvocation *context)
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{
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GError *error = NULL;
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LocAuthInfo *info;
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info = loc_auth_info_new (FALSE, FALSE);
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/* Make sure the caller is authorized to enable location gathering */
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if (!mm_modem_auth_request (MM_MODEM (modem),
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MM_AUTHORIZATION_LOCATION,
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context,
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loc_get_auth_cb,
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info,
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loc_auth_info_destroy,
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&error)) {
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dbus_g_method_return_error (context, error);
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g_error_free (error);
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}
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}
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/*****************************************************************************/
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static void
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mm_modem_location_init (gpointer g_iface)
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{
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static gboolean initialized = FALSE;
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if (initialized)
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return;
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/* Properties */
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g_object_interface_install_property
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(g_iface,
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g_param_spec_boxed (MM_MODEM_LOCATION_LOCATION,
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"Location",
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"Available location information",
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G_TYPE_HASH_TABLE,
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
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g_object_interface_install_property
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(g_iface,
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g_param_spec_uint (MM_MODEM_LOCATION_CAPABILITIES,
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"Capabilities",
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"Supported location information methods",
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MM_MODEM_LOCATION_CAPABILITY_UNKNOWN,
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MM_MODEM_LOCATION_CAPABILITY_GPS_NMEA
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| MM_MODEM_LOCATION_CAPABILITY_GSM_LAC_CI,
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MM_MODEM_LOCATION_CAPABILITY_UNKNOWN,
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
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g_object_interface_install_property
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(g_iface,
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g_param_spec_boolean (MM_MODEM_LOCATION_ENABLED,
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"Enabled",
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"Whether or not location gathering is enabled",
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FALSE,
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
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g_object_interface_install_property
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(g_iface,
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g_param_spec_boolean (MM_MODEM_LOCATION_SIGNALS_LOCATION,
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"SignalsLocation",
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"Whether or not location updates are emitted as signals",
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FALSE,
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
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initialized = TRUE;
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}
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GType
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mm_modem_location_get_type (void)
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{
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static GType loc_type = 0;
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if (!G_UNLIKELY (loc_type)) {
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const GTypeInfo loc_info = {
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sizeof (MMModemLocation), /* class_size */
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mm_modem_location_init, /* base_init */
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NULL, /* base_finalize */
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NULL,
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NULL, /* class_finalize */
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NULL, /* class_data */
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0,
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0, /* n_preallocs */
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NULL
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};
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loc_type = g_type_register_static (G_TYPE_INTERFACE,
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"MMModemLocation",
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&loc_info, 0);
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g_type_interface_add_prerequisite (loc_type, G_TYPE_OBJECT);
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dbus_g_object_type_install_info (loc_type, &dbus_glib_mm_modem_location_object_info);
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}
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return loc_type;
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}
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