Squashed 'external/toxcore/c-toxcore/' changes from 1828c5356..c9cdae001

c9cdae001 fix(toxav): remove extra copy of video frame on encode
4f6d4546b test: Improve the fake network library.
a2581e700 refactor(toxcore): generate `Friend_Request` and `Dht_Nodes_Response`
2aaa11770 refactor(toxcore): use Tox_Memory in generated events
5c367452b test(toxcore): fix incorrect mutex in tox_scenario_get_time
8f92e710f perf: Add a timed limit of number of cookie requests.
695b6417a test: Add some more simulated network support.
815ae9ce9 test(toxcore): fix thread-safety in scenario framework
6d85c754e test(toxcore): add unit tests for net_crypto
9c22e79cc test(support): add SimulatedEnvironment for deterministic testing
f34fcb195 chore: Update windows Dockerfile to debian stable (trixie).
ece0e8980 fix(group_moderation): allow validating unsorted sanction list signatures
a4fa754d7 refactor: rename struct Packet to struct Net_Packet
d6f330f85 cleanup: Fix some warnings from coverity.
e206bffa2 fix(group_chats): fix sync packets reverting topics
0e4715598 test: Add new scenario testing framework.
668291f44 refactor(toxcore): decouple Network_Funcs from sockaddr via IP_Port
fc4396cef fix: potential division by zero in toxav and unsafe hex parsing
8e8b352ab refactor: Add nullable annotations to struct members.
7740bb421 refactor: decouple net_crypto from DHT
1936d4296 test: add benchmark for toxav audio and video
46bfdc2df fix: correct printf format specifiers for unsigned integers
REVERT: 1828c5356 fix(toxav): remove extra copy of video frame on encode

git-subtree-dir: external/toxcore/c-toxcore
git-subtree-split: c9cdae001341e701fca980c9bb9febfeb95d2902

auto_tests/scenarios/scenario_friend_delete_test.c

@@ -0,0 +1,103 @@
+#include "framework/framework.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+typedef struct {
+    bool bob_went_offline;
+} AliceState;
+
+static void on_alice_friend_connection_status(const Tox_Event_Friend_Connection_Status *event, void *user_data)
+{
+    ToxNode *self = (ToxNode *)user_data;
+    AliceState *state = (AliceState *)tox_node_get_script_ctx(self);
+
+    Tox_Connection status = tox_event_friend_connection_status_get_connection_status(event);
+    tox_node_log(self, "Friend connection status changed to %u", status);
+
+    if (status == TOX_CONNECTION_NONE) {
+        state->bob_went_offline = true;
+    }
+}
+
+static void alice_script(ToxNode *self, void *ctx)
+{
+    tox_events_callback_friend_connection_status(tox_node_get_dispatch(self), on_alice_friend_connection_status);
+
+    tox_node_wait_for_self_connected(self);
+    tox_node_wait_for_friend_connected(self, 0);
+    tox_node_log(self, "Connected to Bob. Deleting Bob now...");
+
+    Tox_Err_Friend_Delete err;
+    bool success = tox_friend_delete(tox_node_get_tox(self), 0, &err);
+    ck_assert(success);
+    ck_assert(err == TOX_ERR_FRIEND_DELETE_OK);
+
+    tox_node_log(self, "Bob deleted. Bob should see Alice as offline.");
+
+    // Wait for Bob to finish
+    ToxNode *bob = tox_scenario_get_node(tox_node_get_scenario(self), 1);
+    WAIT_UNTIL(tox_node_is_finished(bob));
+}
+
+typedef struct {
+    bool alice_went_offline;
+    bool alice_connected;
+} BobState;
+
+static void on_bob_friend_connection_status(const Tox_Event_Friend_Connection_Status *event, void *user_data)
+{
+    ToxNode *self = (ToxNode *)user_data;
+    BobState *state = (BobState *)tox_node_get_script_ctx(self);
+
+    Tox_Connection status = tox_event_friend_connection_status_get_connection_status(event);
+    tox_node_log(self, "Friend connection status changed to %u", status);
+
+    if (status != TOX_CONNECTION_NONE) {
+        state->alice_connected = true;
+    }
+
+    if (status == TOX_CONNECTION_NONE) {
+        state->alice_went_offline = true;
+    }
+}
+
+static void bob_script(ToxNode *self, void *ctx)
+{
+    const BobState *state = (const BobState *)ctx;
+    tox_events_callback_friend_connection_status(tox_node_get_dispatch(self), on_bob_friend_connection_status);
+
+    tox_node_wait_for_self_connected(self);
+    WAIT_UNTIL(state->alice_connected);
+    tox_node_log(self, "Connected to Alice. Waiting for Alice to delete me...");
+
+    WAIT_UNTIL(state->alice_went_offline);
+    tox_node_log(self, "Alice went offline as expected!");
+}
+
+int main(int argc, char *argv[])
+{
+    ToxScenario *s = tox_scenario_new(argc, argv, 60000);
+
+    AliceState alice_state = {false};
+    BobState bob_state = {false, false};
+
+    tox_scenario_add_node(s, "Alice", alice_script, &alice_state, sizeof(AliceState));
+    tox_scenario_add_node(s, "Bob", bob_script, &bob_state, sizeof(BobState));
+
+    ToxNode *alice = tox_scenario_get_node(s, 0);
+    ToxNode *bob = tox_scenario_get_node(s, 1);
+
+    tox_node_bootstrap(alice, bob);
+    tox_node_friend_add(alice, bob);
+    tox_node_friend_add(bob, alice);
+
+    ToxScenarioStatus res = tox_scenario_run(s);
+    if (res != TOX_SCENARIO_DONE) {
+        fprintf(stderr, "Scenario failed with status %u\n", res);
+        return 1;
+    }
+
+    tox_scenario_free(s);
+    return 0;
+}