build: merge libmm-common into libmm-glib

It's pointless to have libmm-common around, just merge it into libmm-glib and
make ModemManager depend on libmm-glib directly. At the end, the non-common
stuff in libmm-glib is really minimal.

1 files changed, 248 insertions, 0 deletions

diff --git a/libmm-glib/mm-location-gps-nmea.c b/libmm-glib/mm-location-gps-nmea.c
new file mode 100644
index 00000000..de6478dc
--- /dev/null
+++ b/libmm-glib/mm-location-gps-nmea.c
@@ -0,0 +1,248 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details:
+ *
+ * Copyright (C) 2012 Lanedo GmbH <aleksander@lanedo.com>
+ */
+
+#include <string.h>
+#include <ctype.h>
+#include <stdlib.h>
+
+#include "mm-common-helpers.h"
+#include "mm-errors-types.h"
+#include "mm-location-gps-nmea.h"
+
+G_DEFINE_TYPE (MMLocationGpsNmea, mm_location_gps_nmea, G_TYPE_OBJECT);
+
+struct _MMLocationGpsNmeaPrivate {
+    GHashTable *traces;
+    GRegex *sequence_regex;
+};
+
+/*****************************************************************************/
+
+static gboolean
+check_append_or_replace (MMLocationGpsNmea *self,
+                         const gchar *trace)
+{
+    /* By default, replace */
+    gboolean append_or_replace = FALSE;
+    GMatchInfo *match_info = NULL;
+
+    if (G_UNLIKELY (!self->priv->sequence_regex))
+        self->priv->sequence_regex = g_regex_new ("\\$GPGSV,(\\d),(\\d).*",
+                                                  G_REGEX_RAW | G_REGEX_OPTIMIZE,
+                                                  0,
+                                                  NULL);
+
+    if (g_regex_match (self->priv->sequence_regex, trace, 0, &match_info)) {
+        guint index;
+
+        /* If we don't have the first element of a sequence, append */
+        if (mm_get_uint_from_match_info (match_info, 2, &index) && index != 1)
+            append_or_replace = TRUE;
+    }
+    g_match_info_free (match_info);
+
+    return append_or_replace;
+}
+
+static gboolean
+location_gps_nmea_take_trace (MMLocationGpsNmea *self,
+                              gchar *trace)
+{
+    gchar *i;
+    gchar *trace_type;
+
+    i = strchr (trace, ',');
+    if (!i || i == trace)
+        return FALSE;
+
+    trace_type = g_malloc (i - trace + 1);
+    memcpy (trace_type, trace, i - trace);
+    trace_type[i - trace] = '\0';
+
+    /* Some traces are part of a SEQUENCE; so we need to decide whether we
+     * completely replace the previous trace, or we append the new one to
+     * the already existing list */
+    if (check_append_or_replace (self, trace)) {
+        /* Append */
+        const gchar *previous;
+
+        previous = g_hash_table_lookup (self->priv->traces, trace_type);
+        if (previous) {
+            gchar *sequence;
+
+            /* Skip the trace if we already have it there */
+            if (strstr (previous, trace))
+                return TRUE;
+
+            sequence = g_strdup_printf ("%s%s%s",
+                                        previous,
+                                        g_str_has_suffix (previous, "\r\n") ? "" : "\r\n",
+                                        trace);
+            g_free (trace);
+            trace = sequence;
+        }
+    }
+
+    g_hash_table_replace (self->priv->traces,
+                          trace_type,
+                          trace);
+    return TRUE;
+}
+
+gboolean
+mm_location_gps_nmea_add_trace (MMLocationGpsNmea *self,
+                                const gchar *trace)
+{
+    return location_gps_nmea_take_trace (self, g_strdup (trace));
+}
+
+/*****************************************************************************/
+
+const gchar *
+mm_location_gps_nmea_get_trace (MMLocationGpsNmea *self,
+                                const gchar *trace_type)
+{
+    return (const gchar *)g_hash_table_lookup (self->priv->traces, trace_type);
+}
+
+/*****************************************************************************/
+
+static void
+build_full_foreach (const gchar *trace_type,
+                    const gchar *trace,
+                    GString **built)
+{
+    if ((*built)->len == 0 || g_str_has_suffix ((*built)->str, "\r\n"))
+        g_string_append (*built, trace);
+    else
+        g_string_append_printf (*built, "\r\n%s", trace);
+}
+
+gchar *
+mm_location_gps_nmea_build_full (MMLocationGpsNmea *self)
+{
+    GString *built;
+
+    built = g_string_new ("");
+    g_hash_table_foreach (self->priv->traces,
+                          (GHFunc)build_full_foreach,
+                          &built);
+    return g_string_free (built, FALSE);
+}
+
+/*****************************************************************************/
+
+GVariant *
+mm_location_gps_nmea_get_string_variant (MMLocationGpsNmea *self)
+{
+    GVariant *variant = NULL;
+    gchar *built;
+
+    g_return_val_if_fail (MM_IS_LOCATION_GPS_NMEA (self), NULL);
+
+    built = mm_location_gps_nmea_build_full (self);
+    variant = g_variant_new_string (built);
+    g_free (built);
+
+    return variant;
+}
+
+/*****************************************************************************/
+
+MMLocationGpsNmea *
+mm_location_gps_nmea_new_from_string_variant (GVariant *string,
+                                              GError **error)
+{
+    MMLocationGpsNmea *self = NULL;
+    gchar **split;
+    guint i;
+
+    if (!g_variant_is_of_type (string, G_VARIANT_TYPE_STRING)) {
+        g_set_error (error,
+                     MM_CORE_ERROR,
+                     MM_CORE_ERROR_INVALID_ARGS,
+                     "Cannot create GPS NMEA location from string: "
+                     "invalid variant type received");
+        return NULL;
+    }
+
+    split = g_strsplit (g_variant_get_string (string, NULL), "\r\n", -1);
+    if (!split) {
+        g_set_error (error,
+                     MM_CORE_ERROR,
+                     MM_CORE_ERROR_INVALID_ARGS,
+                     "Invalid GPS NMEA location string: '%s'",
+                     g_variant_get_string (string, NULL));
+        return NULL;
+    }
+
+    /* Create new location object */
+    self = mm_location_gps_nmea_new ();
+
+    for (i = 0; split[i]; i++) {
+        if (!location_gps_nmea_take_trace (self, split[i]))
+            g_free (split[i]);
+    }
+
+    /* Note that the strings in the array of strings were already taken
+     * or freed */
+    g_free (split);
+
+    return self;
+}
+
+/*****************************************************************************/
+
+MMLocationGpsNmea *
+mm_location_gps_nmea_new (void)
+{
+    return (MM_LOCATION_GPS_NMEA (
+                g_object_new (MM_TYPE_LOCATION_GPS_NMEA, NULL)));
+}
+
+static void
+mm_location_gps_nmea_init (MMLocationGpsNmea *self)
+{
+    self->priv = G_TYPE_INSTANCE_GET_PRIVATE ((self),
+                                              MM_TYPE_LOCATION_GPS_NMEA,
+                                              MMLocationGpsNmeaPrivate);
+
+    self->priv->traces = g_hash_table_new_full (g_str_hash,
+                                                g_str_equal,
+                                                g_free,
+                                                g_free);
+}
+
+static void
+finalize (GObject *object)
+{
+    MMLocationGpsNmea *self = MM_LOCATION_GPS_NMEA (object);
+
+    g_hash_table_destroy (self->priv->traces);
+    if (self->priv->sequence_regex)
+        g_regex_unref (self->priv->sequence_regex);
+
+    G_OBJECT_CLASS (mm_location_gps_nmea_parent_class)->finalize (object);
+}
+
+static void
+mm_location_gps_nmea_class_init (MMLocationGpsNmeaClass *klass)
+{
+    GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+    g_type_class_add_private (object_class, sizeof (MMLocationGpsNmeaPrivate));
+
+    object_class->finalize = finalize;
+}