/* Routines for handling XML generic OS data provided by target.
- Copyright (C) 2008-2017 Free Software Foundation, Inc.
+ Copyright (C) 2008-2020 Free Software Foundation, Inc.
This file is part of GDB.
#include "defs.h"
#include "target.h"
-#include "vec.h"
#include "xml-support.h"
#include "osdata.h"
#include "ui-out.h"
#if !defined(HAVE_LIBEXPAT)
-struct osdata *
+std::unique_ptr<osdata>
osdata_parse (const char *xml)
{
static int have_warned;
/* Internal parsing data passed to all XML callbacks. */
struct osdata_parsing_data
- {
- struct osdata *osdata;
- char *property_name;
- };
+{
+ std::unique_ptr<struct osdata> osdata;
+ std::string property_name;
+};
/* Handle the start of a <osdata> element. */
static void
osdata_start_osdata (struct gdb_xml_parser *parser,
const struct gdb_xml_element *element,
- void *user_data, VEC(gdb_xml_value_s) *attributes)
+ void *user_data,
+ std::vector<gdb_xml_value> &attributes)
{
struct osdata_parsing_data *data = (struct osdata_parsing_data *) user_data;
- char *type;
- struct osdata *osdata;
- if (data->osdata)
+ if (data->osdata != NULL)
gdb_xml_error (parser, _("Seen more than on osdata element"));
- type = (char *) xml_find_attribute (attributes, "type")->value;
- osdata = XCNEW (struct osdata);
- osdata->type = xstrdup (type);
- data->osdata = osdata;
+ char *type = (char *) xml_find_attribute (attributes, "type")->value.get ();
+ data->osdata.reset (new struct osdata (std::string (type)));
}
/* Handle the start of a <item> element. */
static void
osdata_start_item (struct gdb_xml_parser *parser,
const struct gdb_xml_element *element,
- void *user_data, VEC(gdb_xml_value_s) *attributes)
+ void *user_data,
+ std::vector<gdb_xml_value> &attributes)
{
struct osdata_parsing_data *data = (struct osdata_parsing_data *) user_data;
- struct osdata_item item = { NULL };
-
- VEC_safe_push (osdata_item_s, data->osdata->items, &item);
+ data->osdata->items.emplace_back ();
}
/* Handle the start of a <column> element. */
static void
osdata_start_column (struct gdb_xml_parser *parser,
const struct gdb_xml_element *element,
- void *user_data, VEC(gdb_xml_value_s) *attributes)
+ void *user_data,
+ std::vector<gdb_xml_value> &attributes)
{
struct osdata_parsing_data *data = (struct osdata_parsing_data *) user_data;
const char *name
- = (const char *) xml_find_attribute (attributes, "name")->value;
+ = (const char *) xml_find_attribute (attributes, "name")->value.get ();
- data->property_name = xstrdup (name);
+ data->property_name.assign (name);
}
/* Handle the end of a <column> element. */
const struct gdb_xml_element *element,
void *user_data, const char *body_text)
{
- struct osdata_parsing_data *data = (struct osdata_parsing_data *) user_data;
- struct osdata *osdata = data->osdata;
- struct osdata_item *item = VEC_last (osdata_item_s, osdata->items);
- struct osdata_column *col = VEC_safe_push (osdata_column_s,
- item->columns, NULL);
-
- /* Transfer memory ownership. NAME was already strdup'ed. */
- col->name = data->property_name;
- col->value = xstrdup (body_text);
- data->property_name = NULL;
-}
-
-/* Discard the constructed osdata (if an error occurs). */
+ osdata_parsing_data *data = (struct osdata_parsing_data *) user_data;
+ struct osdata *osdata = data->osdata.get ();
+ osdata_item &item = osdata->items.back ();
-static void
-clear_parsing_data (void *p)
-{
- struct osdata_parsing_data *data = (struct osdata_parsing_data *) p;
-
- osdata_free (data->osdata);
- data->osdata = NULL;
- xfree (data->property_name);
- data->property_name = NULL;
+ item.columns.emplace_back (std::move (data->property_name),
+ std::string (body_text));
}
/* The allowed elements and attributes for OS data object.
{ NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
};
-struct osdata *
+std::unique_ptr<osdata>
osdata_parse (const char *xml)
{
- struct cleanup *back_to;
- struct osdata_parsing_data data = { NULL };
-
- back_to = make_cleanup (clear_parsing_data, &data);
+ osdata_parsing_data data;
if (gdb_xml_parse_quick (_("osdata"), "osdata.dtd",
osdata_elements, xml, &data) == 0)
{
/* Parsed successfully, don't need to delete the result. */
- discard_cleanups (back_to);
- return data.osdata;
+ return std::move (data.osdata);
}
- do_cleanups (back_to);
return NULL;
}
#endif
-static void
-osdata_item_clear (struct osdata_item *item)
-{
- if (item->columns != NULL)
- {
- struct osdata_column *col;
- int ix;
-
- for (ix = 0;
- VEC_iterate (osdata_column_s, item->columns,
- ix, col);
- ix++)
- {
- xfree (col->name);
- xfree (col->value);
- }
- VEC_free (osdata_column_s, item->columns);
- item->columns = NULL;
- }
-}
-
-void
-osdata_free (struct osdata *osdata)
-{
- if (osdata == NULL)
- return;
-
- if (osdata->items != NULL)
- {
- struct osdata_item *item;
- int ix;
-
- for (ix = 0;
- VEC_iterate (osdata_item_s, osdata->items,
- ix, item);
- ix++)
- osdata_item_clear (item);
- VEC_free (osdata_item_s, osdata->items);
- }
-
- xfree (osdata);
-}
-
-static void
-osdata_free_cleanup (void *arg)
-{
- struct osdata *osdata = (struct osdata *) arg;
-
- osdata_free (osdata);
-}
-
-struct cleanup *
-make_cleanup_osdata_free (struct osdata *data)
-{
- return make_cleanup (osdata_free_cleanup, data);
-}
-
-struct osdata *
+std::unique_ptr<osdata>
get_osdata (const char *type)
{
- struct osdata *osdata = NULL;
- char *xml = target_get_osdata (type);
+ std::unique_ptr<osdata> osdata;
+ gdb::optional<gdb::char_vector> xml = target_get_osdata (type);
if (xml)
{
- struct cleanup *old_chain = make_cleanup (xfree, xml);
-
- if (xml[0] == '\0')
+ if ((*xml)[0] == '\0')
{
if (type)
warning (_("Empty data returned by target. Wrong osdata type?"));
warning (_("Empty type list returned by target. No type data?"));
}
else
- osdata = osdata_parse (xml);
-
- do_cleanups (old_chain);
+ osdata = osdata_parse (xml->data ());
}
- if (!osdata)
+ if (osdata == NULL)
error (_("Can not fetch data now."));
return osdata;
}
-const char *
-get_osdata_column (struct osdata_item *item, const char *name)
+const std::string *
+get_osdata_column (const osdata_item &item, const char *name)
{
- struct osdata_column *col;
- int ix_cols;
-
- for (ix_cols = 0;
- VEC_iterate (osdata_column_s, item->columns,
- ix_cols, col);
- ix_cols++)
- if (strcmp (col->name, name) == 0)
- return col->value;
+ for (const osdata_column &col : item.columns)
+ if (col.name == name)
+ return &col.value;
return NULL;
}
info_osdata (const char *type)
{
struct ui_out *uiout = current_uiout;
- struct osdata *osdata = NULL;
struct osdata_item *last = NULL;
- struct cleanup *old_chain;
int ncols = 0;
- int nrows;
int col_to_skip = -1;
if (type == NULL)
type = "";
- osdata = get_osdata (type);
- old_chain = make_cleanup_osdata_free (osdata);
+ std::unique_ptr<osdata> osdata = get_osdata (type);
- nrows = VEC_length (osdata_item_s, osdata->items);
+ int nrows = osdata->items.size ();
if (*type == '\0' && nrows == 0)
error (_("Available types of OS data not reported."));
- if (!VEC_empty (osdata_item_s, osdata->items))
+ if (!osdata->items.empty ())
{
- last = VEC_last (osdata_item_s, osdata->items);
- if (last->columns)
- ncols = VEC_length (osdata_column_s, last->columns);
+ last = &osdata->items.back ();
+ ncols = last->columns.size ();
/* As a special case, scan the listing of available data types
for a column named "Title", and only include it with MI
elements like menus, and it clutters up CLI output. */
if (*type == '\0' && !uiout->is_mi_like_p ())
{
- struct osdata_column *col;
- int ix;
-
- for (ix = 0;
- VEC_iterate (osdata_column_s, last->columns, ix, col);
- ix++)
+ for (int ix = 0; ix < last->columns.size (); ix++)
{
- if (strcmp (col->name, "Title") == 0)
+ if (last->columns[ix].name == "Title")
col_to_skip = ix;
}
/* Be sure to reduce the total column count, otherwise
/* With no columns/items, we just output an empty table, but we
still output the table. This matters for MI. */
if (ncols == 0)
- {
- do_cleanups (old_chain);
- return;
- }
+ return;
- if (last && last->columns)
+ if (last != NULL && !last->columns.empty ())
{
- struct osdata_column *col;
- int ix;
-
- for (ix = 0;
- VEC_iterate (osdata_column_s, last->columns,
- ix, col);
- ix++)
+ for (int ix = 0; ix < last->columns.size (); ix++)
{
char col_name[32];
snprintf (col_name, 32, "col%d", ix);
uiout->table_header (10, ui_left,
- col_name, col->name);
+ col_name, last->columns[ix].name.c_str ());
}
}
if (nrows != 0)
{
- struct osdata_item *item;
- int ix_items;
-
- for (ix_items = 0;
- VEC_iterate (osdata_item_s, osdata->items,
- ix_items, item);
- ix_items++)
+ for (const osdata_item &item : osdata->items)
{
- int ix_cols;
- struct osdata_column *col;
-
{
ui_out_emit_tuple tuple_emitter (uiout, "item");
- for (ix_cols = 0;
- VEC_iterate (osdata_column_s, item->columns,
- ix_cols, col);
- ix_cols++)
+ for (int ix_cols = 0; ix_cols < item.columns.size (); ix_cols++)
{
char col_name[32];
continue;
snprintf (col_name, 32, "col%d", ix_cols);
- uiout->field_string (col_name, col->value);
+ uiout->field_string (col_name,
+ item.columns[ix_cols].value.c_str ());
}
}
uiout->text ("\n");
}
}
-
- do_cleanups (old_chain);
}
static void
-info_osdata_command (char *arg, int from_tty)
+info_osdata_command (const char *arg, int from_tty)
{
info_osdata (arg);
}
-extern initialize_file_ftype _initialize_osdata; /* -Wmissing-prototypes */
-
+void _initialize_osdata ();
void
-_initialize_osdata (void)
+_initialize_osdata ()
{
add_info ("os", info_osdata_command,
_("Show OS data ARG."));
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