diff options
Diffstat (limited to 'libnm-util/nm-param-spec-specialized.c')
| -rw-r--r-- | libnm-util/nm-param-spec-specialized.c | 710 |
1 files changed, 710 insertions, 0 deletions
diff --git a/libnm-util/nm-param-spec-specialized.c b/libnm-util/nm-param-spec-specialized.c new file mode 100644 index 0000000000..aba86b0b9b --- /dev/null +++ b/libnm-util/nm-param-spec-specialized.c @@ -0,0 +1,710 @@ +/* -*- Mode: C; tab-width: 5; indent-tabs-mode: t; c-basic-offset: 5 -*- */ + +#include "nm-param-spec-specialized.h" + +struct _NMParamSpecSpecialized { + GParamSpec parent; +}; + +#include <string.h> +#include <dbus/dbus-glib.h> + +/***********************************************************/ +/* nm_gvalues_compare */ + +static gint nm_gvalues_compare (const GValue *value1, const GValue *value2); + +static gboolean +type_is_fixed_size (GType type) +{ + switch (type) { + case G_TYPE_CHAR: + case G_TYPE_UCHAR: + case G_TYPE_BOOLEAN: + case G_TYPE_LONG: + case G_TYPE_ULONG: + case G_TYPE_INT: + case G_TYPE_UINT: + case G_TYPE_INT64: + case G_TYPE_UINT64: + case G_TYPE_FLOAT: + case G_TYPE_DOUBLE: + return TRUE; + default: + return FALSE; + } +} + +static gint +nm_gvalues_compare_fixed (const GValue *value1, const GValue *value2) +{ + int ret = 0; + + switch (G_VALUE_TYPE (value1)) { + case G_TYPE_CHAR: { + gchar val1 = g_value_get_char (value1); + gchar val2 = g_value_get_char (value2); + if (val1 != val2) + ret = val1 < val2 ? -1 : val1 > val2; + break; + } + case G_TYPE_UCHAR: { + guchar val1 = g_value_get_uchar (value1); + guchar val2 = g_value_get_uchar (value2); + if (val1 != val2) + ret = val1 < val2 ? -1 : val1 > val2; + break; + } + case G_TYPE_BOOLEAN: { + gboolean val1 = g_value_get_boolean (value1); + gboolean val2 = g_value_get_boolean (value2); + if (val1 != val2) + ret = val1 < val2 ? -1 : val1 > val2; + break; + } + case G_TYPE_LONG: { + glong val1 = g_value_get_long (value1); + glong val2 = g_value_get_long (value2); + if (val1 != val2) + ret = val1 < val2 ? -1 : val1 > val2; + break; + } + case G_TYPE_ULONG: { + gulong val1 = g_value_get_ulong (value1); + gulong val2 = g_value_get_ulong (value2); + if (val1 != val2) + ret = val1 < val2 ? -1 : val1 > val2; + break; + } + case G_TYPE_INT: { + gint val1 = g_value_get_int (value1); + gint val2 = g_value_get_int (value2); + if (val1 != val2) + ret = val1 < val2 ? -1 : val1 > val2; + break; + } + case G_TYPE_UINT: { + guint val1 = g_value_get_uint (value1); + guint val2 = g_value_get_uint (value2); + if (val1 != val2) + ret = val1 < val2 ? -1 : val1 > val2; + break; + } + case G_TYPE_INT64: { + gint64 val1 = g_value_get_int64 (value1); + gint64 val2 = g_value_get_int64 (value2); + if (val1 != val2) + ret = val1 < val2 ? -1 : val1 > val2; + break; + } + case G_TYPE_UINT64: { + guint64 val1 = g_value_get_uint64 (value1); + guint64 val2 = g_value_get_uint64 (value2); + if (val1 != val2) + ret = val1 < val2 ? -1 : val1 > val2; + break; + } + case G_TYPE_FLOAT: { + gfloat val1 = g_value_get_float (value1); + gfloat val2 = g_value_get_float (value2); + if (val1 != val2) + ret = val1 < val2 ? -1 : val1 > val2; + break; + } + case G_TYPE_DOUBLE: { + gdouble val1 = g_value_get_double (value1); + gdouble val2 = g_value_get_double (value2); + if (val1 != val2) + ret = val1 < val2 ? -1 : val1 > val2; + break; + } + default: + g_warning ("Unhandled fixed size type '%s'", G_VALUE_TYPE_NAME (value1)); + } + + return ret; +} + +static gint +nm_gvalues_compare_string (const GValue *value1, const GValue *value2) +{ + const char *str1 = g_value_get_string (value1); + const char *str2 = g_value_get_string (value2); + + if (str1 == str2) + return 0; + + if (!str1) + return 1; + if (!str2) + return -1; + + return strcmp (str1, str2); +} + +static gint +nm_gvalues_compare_strv (const GValue *value1, const GValue *value2) +{ + char **strv1; + char **strv2; + gint ret; + guint i = 0; + + strv1 = (char **) g_value_get_boxed (value1); + strv2 = (char **) g_value_get_boxed (value2); + + while (strv1[i] && strv2[i]) { + ret = strcmp (strv1[i], strv2[i]); + if (ret) + return ret; + i++; + } + + if (strv1[i] == NULL && strv2[i] == NULL) + return 0; + + if (strv1[i]) + return 1; + + return -1; +} + +static void +nm_gvalue_destroy (gpointer data) +{ + GValue *value = (GValue *) data; + + g_value_unset (value); + g_slice_free (GValue, value); +} + +static GValue * +nm_gvalue_dup (const GValue *value) +{ + GValue *dup; + + dup = g_slice_new0 (GValue); + g_value_init (dup, G_VALUE_TYPE (value)); + g_value_copy (value, dup); + + return dup; +} + +static void +iterate_collection (const GValue *value, gpointer user_data) +{ + GSList **list = (GSList **) user_data; + + *list = g_slist_prepend (*list, nm_gvalue_dup (value)); +} + +static gint +nm_gvalues_compare_collection (const GValue *value1, const GValue *value2) +{ + gint ret; + guint len1; + guint len2; + GType value_type = dbus_g_type_get_collection_specialization (G_VALUE_TYPE (value1)); + + if (type_is_fixed_size (value_type)) { + gpointer data1 = NULL; + gpointer data2 = NULL; + + dbus_g_type_collection_get_fixed ((GValue *) value1, &data1, &len1); + dbus_g_type_collection_get_fixed ((GValue *) value2, &data2, &len2); + + if (len1 != len2) + ret = len1 < len2 ? -1 : len1 > len2; + else + ret = memcmp (data1, data2, len1); + } else { + GSList *list1 = NULL; + GSList *list2 = NULL; + + dbus_g_type_collection_value_iterate (value1, iterate_collection, &list1); + len1 = g_slist_length (list1); + dbus_g_type_collection_value_iterate (value2, iterate_collection, &list2); + len2 = g_slist_length (list2); + + if (len1 != len2) + ret = len1 < len2 ? -1 : len1 > len2; + else { + GSList *iter1; + GSList *iter2; + + for (iter1 = list1, iter2 = list2, ret = 0; + ret == 0 && iter1 && iter2; + iter1 = iter1->next, iter2 = iter2->next) + ret = nm_gvalues_compare ((GValue *) iter1->data, (GValue *) iter2->data); + } + + g_slist_foreach (list1, (GFunc) nm_gvalue_destroy, NULL); + g_slist_free (list1); + g_slist_foreach (list2, (GFunc) nm_gvalue_destroy, NULL); + g_slist_free (list2); + } + + return ret; +} + +static void +iterate_map (const GValue *key_val, + const GValue *value_val, + gpointer user_data) +{ + GHashTable **hash = (GHashTable **) user_data; + + g_hash_table_insert (*hash, g_value_dup_string (key_val), nm_gvalue_dup (value_val)); +} + +typedef struct { + GHashTable *hash2; + gint ret; +} CompareMapInfo; + +static void +compare_one_map_item (gpointer key, gpointer val, gpointer user_data) +{ + CompareMapInfo *info = (CompareMapInfo *) user_data; + GValue *value2; + + if (info->ret) + return; + + value2 = (GValue *) g_hash_table_lookup (info->hash2, key); + if (value2) + info->ret = nm_gvalues_compare ((GValue *) val, value2); + else + info->ret = 1; +} + +static gint +nm_gvalues_compare_map (const GValue *value1, const GValue *value2) +{ + GHashTable *hash1 = NULL; + GHashTable *hash2 = NULL; + guint len1; + guint len2; + gint ret = 0; + + if (dbus_g_type_get_map_key_specialization (G_VALUE_TYPE (value1)) != G_TYPE_STRING) { + g_warning ("Can not compare maps with '%s' for keys", + g_type_name (dbus_g_type_get_map_key_specialization (G_VALUE_TYPE (value1)))); + return 0; + } + + hash1 = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, nm_gvalue_destroy); + dbus_g_type_map_value_iterate (value1, iterate_map, &hash1); + len1 = g_hash_table_size (hash1); + + hash2 = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, nm_gvalue_destroy); + dbus_g_type_map_value_iterate (value2, iterate_map, &hash2); + len2 = g_hash_table_size (hash2); + + if (len1 != len2) + ret = len1 < len2 ? -1 : len1 > len2; + else { + CompareMapInfo info; + + info.ret = 0; + info.hash2 = hash2; + g_hash_table_foreach (hash1, compare_one_map_item, &info); + ret = info.ret; + } + + g_hash_table_destroy (hash1); + g_hash_table_destroy (hash2); + + return ret; +} + +static gint +nm_gvalues_compare_struct (const GValue *value1, const GValue *value2) +{ + g_warning ("Not implemented"); + return 0; +} + +gint +nm_gvalues_compare (const GValue *value1, const GValue *value2) +{ + GType type1; + GType type2; + gint ret; + + if (value1 == value2) + return 0; + if (!value1) + return 1; + if (!value2) + return -1; + + type1 = G_VALUE_TYPE (value1); + type2 = G_VALUE_TYPE (value2); + + if (type1 != type2) + return type1 < type2 ? -1 : type1 > type2; + + + if (type_is_fixed_size (type1)) + ret = nm_gvalues_compare_fixed (value1, value2); + else if (type1 == G_TYPE_STRING) + ret = nm_gvalues_compare_string (value1, value2); + else if (G_VALUE_HOLDS_BOXED (value1)) { + gpointer p1 = g_value_get_boxed (value1); + gpointer p2 = g_value_get_boxed (value2); + + if (p1 == p2) + ret = 0; /* Exactly the same values */ + else if (!p1) + ret = 1; /* The comparision functions below don't handle NULLs */ + else if (!p2) + ret = -1; /* The comparision functions below don't handle NULLs */ + else if (type1 == G_TYPE_STRV) + ret = nm_gvalues_compare_strv (value1, value2); + else if (dbus_g_type_is_collection (type1)) + ret = nm_gvalues_compare_collection (value1, value2); + else if (dbus_g_type_is_map (type1)) + ret = nm_gvalues_compare_map (value1, value2); + else if (dbus_g_type_is_struct (type1)) + ret = nm_gvalues_compare_struct (value1, value2); + else if (type1 == G_TYPE_VALUE) + ret = nm_gvalues_compare ((GValue *) g_value_get_boxed (value1), (GValue *) g_value_get_boxed (value2)); + else { + g_warning ("Don't know how to compare boxed types '%s'", g_type_name (type1)); + ret = value1 == value2; + } + } else { + g_warning ("Don't know how to compare types '%s'", g_type_name (type1)); + ret = value1 == value2; + } + + return ret; +} + +/***********************************************************/ + +static void +param_specialized_init (GParamSpec *pspec) +{ +} + +static void +param_specialized_set_default (GParamSpec *pspec, GValue *value) +{ + value->data[0].v_pointer = NULL; +} + +static gboolean +param_specialized_validate (GParamSpec *pspec, GValue *value) +{ + NMParamSpecSpecialized *sspec = NM_PARAM_SPEC_SPECIALIZED (pspec); + GType value_type = G_VALUE_TYPE (value); + gboolean changed = FALSE; + + if (!g_value_type_compatible (value_type, G_PARAM_SPEC_VALUE_TYPE (sspec))) { + g_value_reset (value); + changed = TRUE; + } + + return changed; +} + +static gint +param_specialized_values_cmp (GParamSpec *pspec, + const GValue *value1, + const GValue *value2) +{ + return nm_gvalues_compare (value1, value2); +} + +GType +nm_param_spec_specialized_get_type (void) +{ + static GType type; + + if (G_UNLIKELY (type) == 0) { + static const GParamSpecTypeInfo pspec_info = { + sizeof (NMParamSpecSpecialized), + 0, + param_specialized_init, + G_TYPE_OBJECT, /* value_type */ + NULL, /* finalize */ + param_specialized_set_default, + param_specialized_validate, + param_specialized_values_cmp, + }; + type = g_param_type_register_static ("NMParamSpecSpecialized", &pspec_info); + } + + return type; +} + +GParamSpec * +nm_param_spec_specialized (const char *name, + const char *nick, + const char *blurb, + GType specialized_type, + GParamFlags flags) +{ + NMParamSpecSpecialized *pspec; + + g_return_val_if_fail (g_type_is_a (specialized_type, G_TYPE_BOXED), NULL); + + pspec = g_param_spec_internal (NM_TYPE_PARAM_SPEC_SPECIALIZED, + name, nick, blurb, flags); + + G_PARAM_SPEC (pspec)->value_type = specialized_type; + + return G_PARAM_SPEC (pspec); +} + +/***********************************************************/ +/* Tests */ + +#if 0 + +static void +compare_ints (void) +{ + GValue value1 = { 0 }; + GValue value2 = { 0 }; + + g_value_init (&value1, G_TYPE_INT); + g_value_init (&value2, G_TYPE_INT); + + g_value_set_int (&value1, 5); + g_value_set_int (&value2, 5); + g_print ("Comparing ints 5 and 5: %d\n", nm_gvalues_compare (&value1, &value2)); + + g_value_set_int (&value2, 10); + g_print ("Comparing ints 5 and 10: %d\n", nm_gvalues_compare (&value1, &value2)); + + g_value_set_int (&value2, 1); + g_print ("Comparing ints 5 and 1: %d\n", nm_gvalues_compare (&value1, &value2)); +} + +static void +compare_strings (void) +{ + GValue value1 = { 0 }; + GValue value2 = { 0 }; + const char *str1 = "hello"; + const char *str2 = "world"; + + g_value_init (&value1, G_TYPE_STRING); + g_value_init (&value2, G_TYPE_STRING); + + g_value_set_string (&value1, str1); + g_value_set_string (&value2, str1); + g_print ("Comparing identical strings: %d\n", nm_gvalues_compare (&value1, &value2)); + + g_value_set_string (&value2, str2); + g_print ("Comparing different strings: %d\n", nm_gvalues_compare (&value1, &value2)); +} + +static void +compare_strv (void) +{ + GValue value1 = { 0 }; + GValue value2 = { 0 }; + char *strv1[] = { "foo", "bar", "baz", NULL }; + char *strv2[] = { "foo", "bar", "bar", NULL }; + char *strv3[] = { "foo", "bar", NULL }; + char *strv4[] = { "foo", "bar", "baz", "bam", NULL }; + + g_value_init (&value1, G_TYPE_STRV); + g_value_init (&value2, G_TYPE_STRV); + + g_value_set_boxed (&value1, strv1); + g_value_set_boxed (&value2, strv1); + g_print ("Comparing identical strv's: %d\n", nm_gvalues_compare (&value1, &value2)); + + g_value_set_boxed (&value2, strv2); + g_print ("Comparing different strv's: %d\n", nm_gvalues_compare (&value1, &value2)); + + g_value_set_boxed (&value2, strv3); + g_print ("Comparing different len (smaller) strv's: %d\n", nm_gvalues_compare (&value1, &value2)); + + g_value_set_boxed (&value2, strv4); + g_print ("Comparing different len (longer) strv's: %d\n", nm_gvalues_compare (&value1, &value2)); +} + +static void +compare_garrays (void) +{ + GArray *array1; + GArray *array2; + GValue value1 = { 0 }; + GValue value2 = { 0 }; + int i; + + g_value_init (&value1, DBUS_TYPE_G_UINT_ARRAY); + array1 = g_array_new (FALSE, FALSE, sizeof (guint32)); + + g_value_init (&value2, DBUS_TYPE_G_UINT_ARRAY); + array2 = g_array_new (FALSE, FALSE, sizeof (guint32)); + + for (i = 0; i < 5; i++) { + g_array_append_val (array1, i); + g_array_append_val (array2, i); + } + + g_value_set_boxed (&value1, array1); + g_value_set_boxed (&value2, array2); + + g_print ("Comparing identical arrays's: %d\n", nm_gvalues_compare (&value1, &value2)); + + g_array_remove_index (array2, 0); + g_value_set_boxed (&value2, array2); + g_print ("Comparing different length arrays's: %d\n", nm_gvalues_compare (&value1, &value2)); + + i = 7; + g_array_prepend_val (array2, i); + g_value_set_boxed (&value2, array2); + g_print ("Comparing different arrays's: %d\n", nm_gvalues_compare (&value1, &value2)); +} + +static void +compare_ptrarrays (void) +{ + GPtrArray *array1; + GPtrArray *array2; + GValue value1 = { 0 }; + GValue value2 = { 0 }; + + g_value_init (&value1, dbus_g_type_get_collection ("GPtrArray", G_TYPE_STRING)); + array1 = g_ptr_array_new (); + + g_value_init (&value2, dbus_g_type_get_collection ("GPtrArray", G_TYPE_STRING)); + array2 = g_ptr_array_new (); + + g_ptr_array_add (array1, "hello"); + g_ptr_array_add (array1, "world"); + g_value_set_boxed (&value1, array1); + + g_ptr_array_add (array2, "hello"); + g_ptr_array_add (array2, "world"); + g_value_set_boxed (&value2, array2); + + g_print ("Comparing identical ptr arrays's: %d\n", nm_gvalues_compare (&value1, &value2)); + + g_ptr_array_add (array2, "boo"); + g_value_set_boxed (&value2, array2); + g_print ("Comparing different len ptr arrays's: %d\n", nm_gvalues_compare (&value1, &value2)); + + g_ptr_array_add (array1, "booz"); + g_value_set_boxed (&value1, array1); + g_print ("Comparing different ptr arrays's: %d\n", nm_gvalues_compare (&value1, &value2)); +} + +static void +compare_str_hash (void) +{ + GHashTable *hash1; + GHashTable *hash2; + GValue value1 = { 0 }; + GValue value2 = { 0 }; + + g_value_init (&value1, dbus_g_type_get_map ("GHashTable", G_TYPE_STRING, G_TYPE_STRING)); + g_value_init (&value2, dbus_g_type_get_map ("GHashTable", G_TYPE_STRING, G_TYPE_STRING)); + + hash1 = g_hash_table_new (g_str_hash, g_str_equal); + hash2 = g_hash_table_new (g_str_hash, g_str_equal); + + g_hash_table_insert (hash1, "key1", "hello"); + g_hash_table_insert (hash1, "key2", "world"); + + g_hash_table_insert (hash2, "key1", "hello"); + g_hash_table_insert (hash2, "key2", "world"); + + g_value_set_boxed (&value1, hash1); + g_value_set_boxed (&value2, hash2); + g_print ("Comparing identical str hashes: %d\n", nm_gvalues_compare (&value1, &value2)); + + g_hash_table_remove (hash2, "key2"); + g_value_set_boxed (&value2, hash2); + g_print ("Comparing different length str hashes: %d\n", nm_gvalues_compare (&value1, &value2)); + + g_hash_table_insert (hash2, "key2", "moon"); + g_value_set_boxed (&value2, hash2); + g_print ("Comparing different str hashes: %d\n", nm_gvalues_compare (&value1, &value2)); +} + +static GValue * +str_to_gvalue (const char *str) +{ + GValue *value; + + value = g_slice_new0 (GValue); + g_value_init (value, G_TYPE_STRING); + g_value_set_string (value, str); + + return value; +} + +static GValue * +int_to_gvalue (int i) +{ + GValue *value; + + value = g_slice_new0 (GValue); + g_value_init (value, G_TYPE_INT); + g_value_set_int (value, i); + + return value; +} + +static void +compare_gvalue_hash (void) +{ + GHashTable *hash1; + GHashTable *hash2; + GValue value1 = { 0 }; + GValue value2 = { 0 }; + + g_value_init (&value1, dbus_g_type_get_map ("GHashTable", G_TYPE_STRING, G_TYPE_VALUE)); + g_value_init (&value2, dbus_g_type_get_map ("GHashTable", G_TYPE_STRING, G_TYPE_VALUE)); + + hash1 = g_hash_table_new (g_str_hash, g_str_equal); + hash2 = g_hash_table_new (g_str_hash, g_str_equal); + + g_hash_table_insert (hash1, "key1", str_to_gvalue ("hello")); + g_hash_table_insert (hash1, "key2", int_to_gvalue (5)); + + g_hash_table_insert (hash2, "key1", str_to_gvalue ("hello")); + g_hash_table_insert (hash2, "key2", int_to_gvalue (5)); + + g_value_set_boxed (&value1, hash1); + g_value_set_boxed (&value2, hash2); + g_print ("Comparing identical gvalue hashes: %d\n", nm_gvalues_compare (&value1, &value2)); + + g_hash_table_remove (hash2, "key2"); + g_value_set_boxed (&value2, hash2); + g_print ("Comparing different length str hashes: %d\n", nm_gvalues_compare (&value1, &value2)); + + g_hash_table_insert (hash2, "key2", str_to_gvalue ("moon")); + g_value_set_boxed (&value2, hash2); + g_print ("Comparing different str hashes: %d\n", nm_gvalues_compare (&value1, &value2)); +} + +int +main (int argc, char *argv[]) +{ + DBusGConnection *bus; + + g_type_init (); + bus = dbus_g_bus_get (DBUS_BUS_SESSION, NULL); + + compare_ints (); + compare_strings (); + compare_strv (); + compare_garrays (); + compare_ptrarrays (); + compare_str_hash (); + compare_gvalue_hash (); + + return 0; +} + +#endif |