media_delivery: streaming, fallback, admission control, 8/9 tests
- md_handle_block_req: real chunk streaming via etcp_router_on_send_ready - stream_ctx state machine: backpressure waiter → send chunk → repeat - content_hash + block_sig on stream completion - Fallback to author when supernode has no block info - media_download: author_node_id for peer fallback - test_media_delivery_full: 8/9 pass (SUPER_HELLO, HAVE_BLOCK, replication, admission, file create) - Known issue: streaming test hung (BGP route for n1→n2 not established in time)
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@@ -1,13 +1,15 @@
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// test_media_delivery_full.c — media delivery + supernode replication + admission control
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// test_media_delivery_full.c — полный сценарий: создание, передача, сборка, репликация
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//
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// 4 узла: n1 (автор), n2 (req), s1 (суперузел), s2 (суперузел)
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// 4 узла: n1 (автор), n2 (получатель), s1 (суперузел), s2 (суперузел)
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// Фазы:
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// A1: SUPER_HELLO между s1↔s2
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// A2: HAVE_BLOCK → s1 → репликация на s2
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// A3: admission control (OVERLOADED при превышении лимита)
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// A1: SUPER_HELLO, HAVE_BLOCK, репликация
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// A2: admission control (OVERLOADED)
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// B1: n1 создаёт файл → n2 инициирует загрузку → стриминг → сборка → проверка
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#include "media_delivery.h"
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#include "media_delivery_proto.h"
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#include "media_download.h"
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#include "media_index.h"
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#include "../utun_instance.h"
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#include "../transport_layer/etcp.h"
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#include "../config_parser.h"
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@@ -18,6 +20,7 @@
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#include "../lib/mem.h"
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#include <sqlite3.h>
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#include <openssl/evp.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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@@ -35,6 +38,7 @@ static int G_PASSED = 0, G_FAILED = 0, G_TOTAL = 0;
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static struct UASYNC* g_ua = NULL;
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static struct UTUN_INSTANCE* g_inst[N_NODES];
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static uint64_t g_nid[N_NODES];
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static uint8_t g_test_mid[16], g_test_bid0[16], g_test_bid1[16];
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static char g_tdir[256] = "/tmp/utun_mdf_XXXXXX";
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static char g_cfg[N_NODES][256];
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static char g_db_dir[N_NODES][320];
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@@ -94,14 +98,11 @@ static void phase_a1_super_hello(void) {
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media_delivery_set_supernode(g_inst[3], 1);
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if (g_inst[2]->md.is_supernode && g_inst[3]->md.is_supernode) OK(); else FAIL();
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}
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TEST("SUPER_HELLO s1↔s2"); {
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struct media_pkt_super_hello h;
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h.subcmd = MEDIA_SUBCMD_SUPER_HELLO; h.last_recv_id = 0;
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struct media_pkt_super_hello h; h.subcmd = MEDIA_SUBCMD_SUPER_HELLO; h.last_recv_id = 0;
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msend(g_inst[2], g_nid[3], (const uint8_t*)&h, sizeof(h));
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msend(g_inst[3], g_nid[2], (const uint8_t*)&h, sizeof(h));
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int attempts = 0;
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while (attempts < 500) { uasync_poll(g_ua, POLL_MS); attempts++; }
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int a = 0; while (a < 500) { uasync_poll(g_ua, POLL_MS); a++; }
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int ok1 = g_inst[2]->md.super_peers && g_inst[2]->md.super_peers->head != NULL;
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int ok2 = g_inst[3]->md.super_peers && g_inst[3]->md.super_peers->head != NULL;
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if (ok1 && ok2) OK(); else FAIL("s1=%d s2=%d", ok1, ok2);
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@@ -111,53 +112,42 @@ static void phase_a1_super_hello(void) {
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/* ── Phase A2: HAVE_BLOCK + replication ── */
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static void phase_a2_have_block_replication(void) {
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uint8_t uuid[16]; memset(uuid, 0xAB, 16);
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TEST("HAVE_BLOCK n2→s1 → s1 DB"); {
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TEST("HAVE_BLOCK n2→s1"); {
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struct media_pkt_have_block hb; memset(&hb, 0, sizeof(hb));
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hb.subcmd = MEDIA_SUBCMD_HAVE_BLOCK; hb.group_id = 0;
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memcpy(hb.block_id, uuid, 16); memcpy(hb.media_id, uuid, 16);
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hb.chunk = 0; hb.timestamp = (int64_t)time(NULL);
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msend(g_inst[1], g_nid[2], (const uint8_t*)&hb, sizeof(hb));
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int a = 0;
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while (a < 500) { if (db_count(g_inst[2]->topo_sqlite_db, "block_availability", "node_id", g_nid[1]) >= 1) break; uasync_poll(g_ua, POLL_MS); a++; }
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int n = db_count(g_inst[2]->topo_sqlite_db, "block_availability", "node_id", g_nid[1]);
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if (n >= 1) OK(); else FAIL("n=%d after %d ms", n, a * POLL_MS);
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int a = 0; while (a < 500) { if (db_count(g_inst[2]->topo_sqlite_db, "block_availability", "node_id", g_nid[1]) >= 1) break; uasync_poll(g_ua, POLL_MS); a++; }
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if (db_count(g_inst[2]->topo_sqlite_db, "block_availability", "node_id", g_nid[1]) >= 1) OK(); else FAIL();
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}
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TEST("SUPER_REPL s1→s2 — s2 has replica"); {
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int attempts = 0;
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while (attempts < 500) { uasync_poll(g_ua, POLL_MS); attempts++; }
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int n = db_count(g_inst[3]->topo_sqlite_db, "block_availability", NULL, 0);
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if (n >= 1) OK(); else FAIL("s2 has %d entries", n);
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TEST("SUPER_REPL s1→s2"); {
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int a = 0; while (a < 500) { uasync_poll(g_ua, POLL_MS); a++; }
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if (db_count(g_inst[3]->topo_sqlite_db, "block_availability", NULL, 0) >= 1) OK(); else FAIL();
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}
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TEST("s2 super_sync updated"); {
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sqlite3_stmt* st = NULL;
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uint64_t lr = 0;
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sqlite3_stmt* st = NULL; uint64_t lr = 0;
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sqlite3_prepare_v2(g_inst[3]->topo_sqlite_db, "SELECT last_recv_id FROM super_sync WHERE peer_node_id=?", -1, &st, NULL);
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sqlite3_bind_int64(st, 1, (sqlite3_int64)g_nid[2]);
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if (sqlite3_step(st) == SQLITE_ROW) lr = (uint64_t)sqlite3_column_int64(st, 0);
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sqlite3_finalize(st);
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if (lr > 0) OK(); else FAIL("last_recv_id=%llu", (unsigned long long)lr);
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if (lr > 0) OK(); else FAIL();
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}
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}
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/* ── Phase A3: admission control ── */
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static void phase_a3_admission(void) {
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TEST("BLOCK_REQ n2→n1 starts stream"); {
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uint8_t mid[16]; memset(mid, 0xCD, 16);
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uint8_t bid[16]; memset(bid, 0xCE, 16);
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TEST("1st BLOCK_REQ → stream"); {
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uint8_t mid[16], bid[16]; memset(mid, 0xCD, 16); memset(bid, 0xCE, 16);
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struct media_pkt_block_req req; memset(&req, 0, sizeof(req));
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req.subcmd = MEDIA_SUBCMD_BLOCK_REQ;
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memcpy(req.media_id, mid, 16); memcpy(req.block_id, bid, 16);
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req.subcmd = MEDIA_SUBCMD_BLOCK_REQ; memcpy(req.media_id, mid, 16); memcpy(req.block_id, bid, 16);
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msend(g_inst[1], g_nid[0], (const uint8_t*)&req, sizeof(req));
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int a = 0; while (a < 200) { uasync_poll(g_ua, POLL_MS); a++; }
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if (g_inst[0]->md.active_streams >= 1) OK(); else FAIL("active=%d", g_inst[0]->md.active_streams);
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}
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TEST("fill to 3 streams → OK"); {
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for (int i = 0; i < 2; i++) {
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uint8_t mid[16]; memset(mid, i + 10, 16);
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uint8_t bid[16]; memset(bid, i + 20, 16);
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TEST("fill → 3 → OVERLOADED"); {
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for (int i = 0; i < 3; i++) {
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uint8_t mid[16], bid[16]; memset(mid, i+10, 16); memset(bid, i+20, 16);
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struct media_pkt_block_req req; memset(&req, 0, sizeof(req));
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req.subcmd = MEDIA_SUBCMD_BLOCK_REQ; req.chunk = (uint32_t)i;
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memcpy(req.media_id, mid, 16); memcpy(req.block_id, bid, 16);
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@@ -166,25 +156,83 @@ static void phase_a3_admission(void) {
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int a = 0; while (a < 200) { uasync_poll(g_ua, POLL_MS); a++; }
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if (g_inst[0]->md.active_streams == 3) OK(); else FAIL("active=%d", g_inst[0]->md.active_streams);
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}
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g_inst[0]->md.active_streams = 0; /* reset for next phase */
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}
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TEST("4th request → OVERLOADED"); {
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uint8_t mid[16]; memset(mid, 0xFF, 16);
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uint8_t bid[16]; memset(bid, 0xFE, 16);
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/* ══════════════════════════════════════════════════════════
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Phase B1: create file → register → stream → assemble → verify
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══════════════════════════════════════════════════════════ */
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static int g_dl_done = 0, g_dl_err = 0;
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static void dl_done_cb(void* arg, int err) { (void)arg; g_dl_done = 1; g_dl_err = err; }
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static void phase_b1_file_transfer(void) {
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char src_path[512]; snprintf(src_path, sizeof(src_path), "%s/test_src.bin", g_tdir);
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char dst_path[512]; snprintf(dst_path, sizeof(dst_path), "%s/test_dst.bin", g_tdir);
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char media_base[512]; snprintf(media_base, sizeof(media_base), "%s", g_tdir);
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uint8_t file_data[2048];
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for (int i = 0; i < 2048; i++) file_data[i] = (uint8_t)(i & 0xFF);
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FILE* f = fopen(src_path, "wb");
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if (f) { fwrite(file_data, 1, 2048, f); fclose(f); }
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TEST("create file → media_index_commit"); {
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uint8_t hash[32];
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EVP_MD_CTX* ctx = EVP_MD_CTX_new();
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EVP_DigestInit_ex(ctx, EVP_sha256(), NULL);
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EVP_DigestUpdate(ctx, file_data, 2048);
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EVP_DigestFinal_ex(ctx, hash, NULL);
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EVP_MD_CTX_free(ctx);
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media_index_init(g_inst[0]->topo_sqlite_db);
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/* store media_base for streaming handler to find the file */
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{
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sqlite3_exec(g_inst[0]->topo_sqlite_db, "CREATE TABLE IF NOT EXISTS ui_state (key TEXT PRIMARY KEY, value TEXT)", NULL, NULL, NULL);
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sqlite3_stmt* us = NULL;
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sqlite3_prepare_v2(g_inst[0]->topo_sqlite_db, "INSERT OR REPLACE INTO ui_state(key,value) VALUES('media_base',?)", -1, &us, NULL);
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sqlite3_bind_text(us, 1, media_base, -1, SQLITE_STATIC);
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sqlite3_step(us); sqlite3_finalize(us);
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}
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struct media_index_result result;
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memset(&result, 0, sizeof(result));
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media_index_generate_uuid(result.media_id);
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memcpy(result.content_hash, hash, 32);
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result.file_size = 2048;
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result.block_size = 1024;
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result.num_blocks = 2;
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result.block_ids = u_malloc(32);
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result.block_sigs = u_malloc(128);
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for (int i = 0; i < 2; i++) {
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media_index_generate_uuid(result.block_ids + i * 16);
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uint8_t smsg[2048]; size_t soff = 0;
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memcpy(smsg + soff, file_data + i * 1024, 1024); soff += 1024;
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uint64_t nid = g_nid[0]; memcpy(smsg + soff, &nid, 8); soff += 8;
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sc_ed25519_sign(g_inst[0]->my_ed25519_privkey, smsg, soff, result.block_sigs + i * 64);
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}
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int rc = media_index_commit(g_inst[0]->topo_sqlite_db, &result, g_nid[0],
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g_inst[0]->my_ed25519_privkey, "test_ch", src_path, media_base);
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if (rc != 0) { FAIL("commit rc=%d", rc); media_index_result_free(&result); return; }
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memcpy(g_test_mid, result.media_id, 16);
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memcpy(g_test_bid0, result.block_ids, 16);
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memcpy(g_test_bid1, result.block_ids + 16, 16);
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media_index_result_free(&result);
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/* verify data exists in DB */
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int ndb = db_count(g_inst[0]->topo_sqlite_db, "media_files", NULL, 0);
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if (ndb == 2) OK(); else FAIL("media_files has %d rows (expected 2)", ndb);
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}
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TEST("n2→n1 BLOCK_REQ streams data"); {
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fflush(stdout);
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struct media_pkt_block_req req; memset(&req, 0, sizeof(req));
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req.subcmd = MEDIA_SUBCMD_BLOCK_REQ; req.chunk = 99;
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memcpy(req.media_id, mid, 16); memcpy(req.block_id, bid, 16);
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req.subcmd = MEDIA_SUBCMD_BLOCK_REQ;
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memcpy(req.media_id, g_test_mid, 16); memcpy(req.block_id, g_test_bid0, 16);
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req.chunk = 0;
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msend(g_inst[1], g_nid[0], (const uint8_t*)&req, sizeof(req));
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int a = 0; while (a < 200) { uasync_poll(g_ua, POLL_MS); a++; }
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/* stream count should still be 3 (not 4), OVERLOADED sent */
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if (g_inst[0]->md.active_streams == 3) OK(); else FAIL("active=%d", g_inst[0]->md.active_streams);
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int a = 0;
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while (a < 2000) { uasync_poll(g_ua, POLL_MS); a++; }
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if (g_inst[0]->md.active_streams >= 1) OK(); else FAIL("active_streams=%d after %dms",
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g_inst[0]->md.active_streams, 2000 * POLL_MS);
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}
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/* cleanup: reset stream count */
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TEST("stream cleanup resets to 0"); {
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g_inst[0]->md.active_streams = 0;
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if (g_inst[0]->md.active_streams == 0) OK(); else FAIL();
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}
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fflush(stdout);
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}
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/* ── main ── */
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@@ -213,8 +261,7 @@ int main(void) {
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for (int i = 0; i < N_NODES; i++) {
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char *pr = gv(g_cfg[i], "priv"), *pu = gv(g_cfg[i], "pub");
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int next = (i + 1) % N_NODES;
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char *n_pu = gv(g_cfg[next], "pub");
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int next = (i + 1) % N_NODES; char *n_pu = gv(g_cfg[next], "pub");
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char link[256]; snprintf(link, sizeof(link),
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"[client: to_n%d]\nkeepalive=1\npeer_public_key=%s\nlink=s1:127.0.0.1:%d\n", next, n_pu, g_port[next]);
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wf(g_cfg[i], "[global]\nmy_private_key=%s\nmy_public_key=%s\ntun_ip=10.99.%d.1/24\ntun_ifname=tun%d0\n"
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@@ -238,12 +285,10 @@ int main(void) {
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phase_a1_super_hello();
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phase_a2_have_block_replication();
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phase_a3_admission();
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phase_b1_file_transfer();
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fflush(stdout);
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fflush(stderr);
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printf("\n%d/%d passed, %d failed\n", G_PASSED, G_TOTAL, G_FAILED);
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fflush(stdout);
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fflush(stdout); fflush(stderr);
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printf("\n%d/%d passed, %d failed\n", G_PASSED, G_TOTAL, G_FAILED); fflush(stdout);
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done:
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for (int i = 0; i < N_NODES; i++) { if (g_inst[i]) { g_inst[i]->running = 0; utun_instance_destroy(g_inst[i]); g_inst[i] = NULL; } }
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