feat(ncm): 缓存分目录（songs//covers/）+ 陈旧 mp3 缓存修复
任务1 缓存分目录（用户定案）：\n- ncm_cache_init mkdir songs/ 与 covers/ 子目录 + 一次性迁移\n （根混放 song_*/cov*/cover_current.jpg 挪进两子目录，幂等，legacy_migrated 计数）\n- ncm_cache_path 按 id 前缀路由（cov*→covers/，其余→songs/）\n- LRU（evict/total_bytes/7天 .part 回收）只扫 songs/；clear 清 songs/+covers/ 的 song_*\n- cover.c save_cover_raw 落 covers/cover_current.jpg\n\n任务2 陈旧 mp3 缓存修复（真机实锤：hires 档键下存 mp3，播放命中旧档）：\n- song_local_file 缓存命中且用户档>EXHIGH（无损+）且实体是 .mp3 = 静默降级产物\n → 迁移重命名到 exhigh 键 song_<id>_exhigh.mp3（选极高仍可用；目标已存在删旧）\n → 本档视为未命中走下载（311 flac 门禁拿真无损/正确降级）\n\n验证：cache_evict_sim case10（目录迁移一次成型）+P1-9；player_flow_sim P13（迁移+miss）\n+P1-12 零回归；stream/window/search/degrade/cover_chain/test_ncm_core(host+qemu) 全 PASS；\nbuild_ncm.sh -Wall -Wextra 0 warning。0 真实请求。新 ncm md5 a90ba8c3 (text1028458/bss1364484)。
This commit is contained in:
AskaEth committed
1 parent
986e3814bc
commit
de18cef02c
11 files changed
+299
-64
No files matched your search
@@ -14,6 +14,8 @@
|
||||
* P12 切音质后重播同一曲（§25）：同 idx 在播时再 play —— 修前被解码主循环忽略
|
||||
* （旧曲继续出声、state 恒 BUFFER/「缓冲中」，收尾被外层当播完顺延下一首）；
|
||||
* 修后 seq 变化即重启换档，状态回 PLAYING、新档位下载、eff_level 回填。
|
||||
* P13 陈旧 hires.mp3（flac 门禁前静默降级产物，hires 键下存 mp3）：song_local_file
|
||||
* 迁移重命名到 exhigh 键（song_<id>_exhigh.mp3）+ 本档视为 miss 走下载（§NEW 任务2）。
|
||||
*
|
||||
* 编译（宿主，ncm_app 目录下）：
|
||||
* gcc -O2 -ffunction-sections -DJSMN_HEADER -I. -I../sdk -I../meow_launcherd \
|
||||
@@ -37,6 +39,7 @@
|
||||
#include <string.h>
|
||||
#include <stdlib.h>
|
||||
#include <stdarg.h>
|
||||
#include <sys/stat.h>
|
||||
#include <unistd.h>
|
||||
|
||||
ncm_app_state_t g_st;
|
||||
@@ -77,6 +80,7 @@ int appstate_queue_song(int idx, ncm_song_t *out) { return appstate_song_copy(id
|
||||
* g_cache_ok=1 → lookup 命中（给真实存在的 /tmp 文件，免下载）；
|
||||
* 否则走下载：song_url(g_url_rc 可注入失败) → http_download(g_dl_delay_ms 模拟慢) → commit。 */
|
||||
static int g_cache_ok = 1;
|
||||
static char g_cache_real[600]; /* g_cache_ok==2：lookup 命中返回此真实路径（P13 陈旧 mp3 迁移用） */
|
||||
static int g_url_rc = NCM_OK;
|
||||
static int g_dl_delay_ms = 0;
|
||||
static int g_downloads; /* http_download 调用数（song_url 请求放大检测） */
|
||||
@@ -107,10 +111,30 @@ int account_level_cap(void)
|
||||
}
|
||||
}
|
||||
|
||||
/* 兜底保证 /tmp/pf_sim.mp3 存在（fake 缓存命中用；§NEW 任务2 的迁移 rename 会把它挪走到
|
||||
* exhigh 键——下次命中前补回，避免跨用例污染损坏共享命中文件）。 */
|
||||
static void pf_ensure_sim_mp3(void)
|
||||
{
|
||||
struct stat st;
|
||||
if (stat("/tmp/pf_sim.mp3", &st) == 0) return;
|
||||
FILE *f = fopen("/tmp/pf_sim.mp3", "wb");
|
||||
if (!f) return;
|
||||
for (int i = 0; i < 4096; i++) fputc(i & 0xFF, f);
|
||||
fclose(f);
|
||||
}
|
||||
|
||||
int ncm_cache_lookup(const ncm_cache_t *c, const char *id, const char *ext, char *out, size_t out_sz)
|
||||
{
|
||||
(void)c; (void)id; (void)ext;
|
||||
(void)c; (void)id;
|
||||
if (g_cache_ok == 2) { /* P13 真实命中模式：仅 mp3 命中（stale hires 实体是 mp3） */
|
||||
if (ext && strcmp(ext, "mp3") == 0 && g_cache_real[0]) {
|
||||
snprintf(out, out_sz, "%s", g_cache_real);
|
||||
return NCM_OK;
|
||||
}
|
||||
return NCM_ERR_NOENT;
|
||||
}
|
||||
if (!g_cache_ok) return NCM_ERR_NOENT;
|
||||
pf_ensure_sim_mp3();
|
||||
snprintf(out, out_sz, "/tmp/pf_sim.mp3");
|
||||
return NCM_OK;
|
||||
}
|
||||
@@ -460,7 +484,10 @@ int main(void)
|
||||
CHECK(wait_err(NCM_ERR_VIP, 2000), "fee=1 + 非会员 -> err=NCM_ERR_VIP (rc=%d)",
|
||||
player_manager_error());
|
||||
CHECK(g_url_calls == 0, "song_url 零请求（省一次请求，防风控；calls=%d)", g_url_calls);
|
||||
/* 已缓存的 VIP 曲：门禁不拦（缓存优先，NCM_CACHE_DESIGN §2.4） */
|
||||
/* 已缓存的 VIP 曲：门禁不拦（缓存优先，NCM_CACHE_DESIGN §2.4）。
|
||||
* 注：把档位降回 EXHIGH——缓存 stub 的「命中」恒是 mp3；用户档若仍 SURROUND(>EXHIGH)，
|
||||
* 会被 §NEW 任务2 当作静默降级产物迁移/重下，与「绕过门禁」的本意不符（P13 单独测迁移）。 */
|
||||
player_manager_set_quality(NCM_LEVEL_EXHIGH, 10);
|
||||
g_cache_ok = 1;
|
||||
player_manager_play(2);
|
||||
CHECK(wait_state(NCM_PC_PLAYING, 3000), "cached VIP song plays (缓存命中绕过门禁)");
|
||||
@@ -562,6 +589,34 @@ int main(void)
|
||||
g_eof = 1;
|
||||
wait_state(NCM_PC_STOPPED, 3000);
|
||||
|
||||
printf("== P13: 陈旧 hires.mp3（静默降级产物）-> exhigh 迁移 + 本档 miss 重下（§NEW 任务2）==\n");
|
||||
usleep(300 * 1000);
|
||||
g_eof = 0; g_reads_left = -1; g_url_rc = NCM_OK; g_fee = 0;
|
||||
g_part_size = 0; g_http_status = 200; g_416_first = 0; g_dl_delay_ms = 0; g_dl_fail = 0;
|
||||
g_vip = NCM_VIP_NONE; g_writes = 0; g_downloads = 0; g_url_calls = 0;
|
||||
g_last_key[0] = 0; g_last_ext[0] = 0; g_url_type = "mp3";
|
||||
/* 用户档 = Hi-Res（>EXHIGH），缓存实体是一首 mp3 = flac 门禁前把 exhigh 的 mp3 写进 hires
|
||||
* 键的「静默降级」产物。须被迁移到 exhigh 键（song_1000_exhigh.mp3），本档视为 miss 走下载。 */
|
||||
unlink("/tmp/song_1000_exhigh.mp3"); /* 保证 exhigh 目标不存在（走 rename 而非删旧） */
|
||||
FILE *hf = fopen("/tmp/pf_hires.mp3", "wb");
|
||||
if (hf) { fputs("DEGRADED", hf); fclose(hf); }
|
||||
snprintf(g_cache_real, sizeof g_cache_real, "/tmp/pf_hires.mp3");
|
||||
g_cache_ok = 2; /* lookup 命中返回 g_cache_real（仅 mp3 键） */
|
||||
player_manager_set_quality(NCM_LEVEL_HIRES, 10);
|
||||
player_manager_play(0);
|
||||
CHECK(wait_state(NCM_PC_PLAYING, 3000), "stale hires.mp3 redownloaded -> plays");
|
||||
CHECK(g_downloads >= 1, "stale mp3 triggered redownload (downloads=%d)", g_downloads);
|
||||
CHECK(strcmp(g_last_key, "1000_hires") == 0,
|
||||
"redownload cache key=%s (expect 1000_hires=用户档键)", g_last_key);
|
||||
CHECK(strcmp(g_last_ext, "mp3") == 0, "redownload ext=%s (请求档为 mp3，维持原身份)", g_last_ext);
|
||||
struct stat mm;
|
||||
CHECK(stat("/tmp/song_1000_exhigh.mp3", &mm) == 0,
|
||||
"exhigh migrated file exists (选「极高」档仍可用)");
|
||||
CHECK(stat("/tmp/pf_hires.mp3", &mm) != 0, "stale hires.mp3 source gone (已迁走)");
|
||||
g_cache_ok = 0; g_cache_real[0] = 0;
|
||||
g_eof = 1;
|
||||
wait_state(NCM_PC_STOPPED, 3000);
|
||||
|
||||
usleep(200 * 1000);
|
||||
player_manager_stop_thread();
|
||||
printf(g_fail ? "== PLAYER FLOW SIM: FAIL ==\n" : "== PLAYER FLOW SIM: ALL PASS ==\n");
|
||||
|
||||
Reference in new issue
Block a user