diff options
Diffstat (limited to 'src/cachemanager.cc')
| -rw-r--r-- | src/cachemanager.cc | 28 |
1 files changed, 25 insertions, 3 deletions
diff --git a/src/cachemanager.cc b/src/cachemanager.cc index 9b18882..2c0315d 100644 --- a/src/cachemanager.cc +++ b/src/cachemanager.cc @@ -30,8 +30,13 @@ #define CHUNKSIZE 256 +sample_t nodata[CHUNKSIZE]; + CacheManager::CacheManager() { + for(int i = 0; i < CHUNKSIZE; i++) { + nodata[i] = 0; + } } CacheManager::~CacheManager() @@ -62,11 +67,17 @@ sample_t *CacheManager::open(AudioFile *file, size_t initial_samples_needed, int { // What if no free ids is available? m_ids.lock(); - id = availableids.front(); - availableids.pop_front(); + if(availableids.empty()) { + id = CACHEMANAGER_NOID; + } + else { + id = availableids.front(); + availableids.pop_front(); + } m_ids.unlock(); - if(initial_samples_needed < file->size) { + if(id != CACHEMANAGER_NOID && + initial_samples_needed < file->size) { cache_t c; c.file = file; c.channel = channel; @@ -81,11 +92,17 @@ sample_t *CacheManager::open(AudioFile *file, size_t initial_samples_needed, int pushEvent(e); } + if(id == CACHEMANAGER_NOID) { + return nodata; + } + return file->data; } void CacheManager::close(cacheid_t id) { + if(CACHEMANAGER_NOID) return; + { event_t e = createEvent(id, CLEAN); MutexAutolock l(m_events); @@ -103,6 +120,11 @@ void CacheManager::close(cacheid_t id) sample_t *CacheManager::next(cacheid_t id, size_t &size) { size = CHUNKSIZE; + + if(id == CACHEMANAGER_NOID) { + return nodata; + } + m_caches.lock(); cache_t c = id2cache[id]; c.pos += size; |