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Refactor to always allocate chosen_entry_guards in new guard_selection_new() function

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This commit is contained in:
Andrea Shepard 2016-10-14 00:15:30 +00:00
parent 3b8a40f262
commit 1c6f8841f4
1 changed files with 29 additions and 21 deletions
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50
src/or/entrynodes.c
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@ -98,6 +98,7 @@ static const node_t *choose_random_entry_impl(guard_selection_t *gs,
int for_directory,
dirinfo_type_t dirtype,
int *n_options_out);
static guard_selection_t * guard_selection_new(void);
static int num_bridges_usable(void);
/* Default number of entry guards in the case where the NumEntryGuards
@ -108,6 +109,19 @@ static int num_bridges_usable(void);
#define MIN_N_GUARDS 1
#define MAX_N_GUARDS 10
/** Allocate a new guard_selection_t */
static guard_selection_t *
guard_selection_new(void)
{
guard_selection_t *gs;
gs = tor_malloc_zero(sizeof(*gs));
gs->chosen_entry_guards = smartlist_new();
return gs;
}
/** Get current default guard_selection_t, creating it if necessary */
guard_selection_t *
get_guard_selection_info(void)
@ -117,7 +131,7 @@ get_guard_selection_info(void)
}
if (!curr_guard_context) {
curr_guard_context = tor_malloc_zero(sizeof(*curr_guard_context));
curr_guard_context = guard_selection_new();
smartlist_add(guard_contexts, curr_guard_context);
}
@ -130,10 +144,7 @@ const smartlist_t *
get_entry_guards_for_guard_selection(guard_selection_t *gs)
{
tor_assert(gs != NULL);
if (!(gs->chosen_entry_guards)) {
gs->chosen_entry_guards = smartlist_new();
}
tor_assert(gs->chosen_entry_guards != NULL);
return gs->chosen_entry_guards;
}
@ -492,6 +503,7 @@ add_an_entry_guard(guard_selection_t *gs,
entry_guard_t *entry;
tor_assert(gs != NULL);
tor_assert(gs->chosen_entry_guards != NULL);
if (chosen) {
node = chosen;
@ -558,10 +570,6 @@ add_an_entry_guard(guard_selection_t *gs,
if (!for_discovery)
entry->made_contact = 1;
if (gs->chosen_entry_guards == NULL) {
gs->chosen_entry_guards = smartlist_new();
}
if (prepend)
smartlist_insert(gs->chosen_entry_guards, 0, entry);
else
@ -608,9 +616,7 @@ pick_entry_guards(guard_selection_t *gs,
const int num_needed = decide_num_guards(options, for_directory);
tor_assert(gs != NULL);
if (gs->chosen_entry_guards == NULL) {
gs->chosen_entry_guards = smartlist_new();
}
tor_assert(gs->chosen_entry_guards != NULL);
while (num_live_entry_guards_for_guard_selection(gs, for_directory)
< num_needed) {
@ -1297,13 +1303,11 @@ choose_random_entry_impl(guard_selection_t *gs,
int retval = 0;
tor_assert(gs != NULL);
tor_assert(gs->chosen_entry_guards != NULL);
if (n_options_out)
*n_options_out = 0;
if (!(gs->chosen_entry_guards))
gs->chosen_entry_guards = smartlist_new();
if (gs->should_add_entry_nodes)
entry_guards_set_from_config(gs, options);
@ -1726,14 +1730,15 @@ entry_guards_update_state(or_state_t *state)
config_line_t **next, *line;
guard_selection_t *gs = get_guard_selection_info();
tor_assert(gs != NULL);
tor_assert(gs->chosen_entry_guards != NULL);
if (!gs->dirty)
return;
config_free_lines(state->EntryGuards);
next = &state->EntryGuards;
*next = NULL;
if (!(gs->chosen_entry_guards))
gs->chosen_entry_guards = smartlist_new();
SMARTLIST_FOREACH_BEGIN(gs->chosen_entry_guards, entry_guard_t *, e) {
char dbuf[HEX_DIGEST_LEN+1];
if (!e->made_contact)
@ -1819,6 +1824,9 @@ getinfo_helper_entry_guards(control_connection_t *conn,
{
guard_selection_t *gs = get_guard_selection_info();
tor_assert(gs != NULL);
tor_assert(gs->chosen_entry_guards != NULL);
(void) conn;
(void) errmsg;
@ -1827,8 +1835,7 @@ getinfo_helper_entry_guards(control_connection_t *conn,
smartlist_t *sl = smartlist_new();
char tbuf[ISO_TIME_LEN+1];
char nbuf[MAX_VERBOSE_NICKNAME_LEN+1];
if (!(gs->chosen_entry_guards))
gs->chosen_entry_guards = smartlist_new();
SMARTLIST_FOREACH_BEGIN(gs->chosen_entry_guards, entry_guard_t *, e) {
const char *status = NULL;
time_t when = 0;
@ -2720,8 +2727,9 @@ entries_retry_helper(const or_options_t *options, int act)
int need_bridges = options->UseBridges != 0;
guard_selection_t *gs = get_guard_selection_info();
if (!(gs->chosen_entry_guards))
gs->chosen_entry_guards = smartlist_new();
tor_assert(gs != NULL);
tor_assert(gs->chosen_entry_guards != NULL);
SMARTLIST_FOREACH_BEGIN(gs->chosen_entry_guards, entry_guard_t *, e) {
node = node_get_by_id(e->identity);
if (node && node_has_descriptor(node) &&