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-rw-r--r--src/audiocache.cc14
-rw-r--r--src/audiocacheeventhandler.cc44
-rw-r--r--src/audiocacheeventhandler.h8
-rw-r--r--src/audiocacheidmanager.cc53
-rw-r--r--src/audiocacheidmanager.h39
5 files changed, 90 insertions, 68 deletions
diff --git a/src/audiocache.cc b/src/audiocache.cc
index fa144fd..92d3d61 100644
--- a/src/audiocache.cc
+++ b/src/audiocache.cc
@@ -91,8 +91,8 @@ gsl::owner<sample_t*> AudioCache::open(const AudioFile& file,
return nodata;
}
- // Get the cache_t connected with the registered id.
- cache_t& cache = id_manager.getCache(new_cacheid);
+ // Get the CacheBuffer connected with the registered id.
+ CacheBuffer& cache = id_manager.getCache(new_cacheid);
cache.afile = nullptr; // File is opened when needed.
cache.channel = channel;
@@ -140,7 +140,7 @@ gsl::owner<sample_t*> AudioCache::open(const AudioFile& file,
if(cache.back == nullptr)
{
- cache.back = new sample_t[chunk_size];
+ cache.allocBack(chunk_size);
}
event_handler.pushLoadNextEvent(cache.afile, cache.channel, cache.pos,
@@ -159,7 +159,7 @@ gsl::owner<sample_t*> AudioCache::next(cacheid_t cacheid, std::size_t& size)
return nodata;
}
- cache_t& cache = id_manager.getCache(cacheid);
+ CacheBuffer& cache = id_manager.getCache(cacheid);
if(cache.preloaded_samples != nullptr)
{
@@ -210,7 +210,7 @@ gsl::owner<sample_t*> AudioCache::next(cacheid_t cacheid, std::size_t& size)
}
// Swap buffers
- std::swap(cache.front, cache.back);
+ cache.swap();
// Next time we go here we have already read the first frame.
cache.localpos = size;
@@ -224,7 +224,7 @@ gsl::owner<sample_t*> AudioCache::next(cacheid_t cacheid, std::size_t& size)
// Do we have a back buffer to read into?
if(cache.back == nullptr)
{
- cache.back = new sample_t[chunk_size];
+ cache.allocBack(chunk_size);
}
event_handler.pushLoadNextEvent(cache.afile, cache.channel, cache.pos,
@@ -243,7 +243,7 @@ bool AudioCache::isReady(cacheid_t cacheid)
return true;
}
- const cache_t& cache = id_manager.getCache(cacheid);
+ const CacheBuffer& cache = id_manager.getCache(cacheid);
return cache.ready;
}
diff --git a/src/audiocacheeventhandler.cc b/src/audiocacheeventhandler.cc
index 06bbf6e..ffd183c 100644
--- a/src/audiocacheeventhandler.cc
+++ b/src/audiocacheeventhandler.cc
@@ -34,13 +34,14 @@
#include "audiocache.h"
#include "audiocacheidmanager.h"
-enum class EventType {
+enum class EventType
+{
LoadNext,
Close,
};
-class CacheEvent {
-public:
+struct CacheEvent
+{
EventType event_type;
// For close event:
@@ -63,9 +64,9 @@ AudioCacheEventHandler::~AudioCacheEventHandler()
clearEvents();
auto active_ids = id_manager.getActiveIDs();
- for(auto id : active_ids)
+ for(auto active_id : active_ids)
{
- handleCloseCache(id);
+ handleCloseCache(active_id);
}
}
@@ -119,28 +120,28 @@ void AudioCacheEventHandler::pushLoadNextEvent(AudioCacheFile* afile,
size_t pos, sample_t* buffer,
volatile bool* ready)
{
- CacheEvent cache_event;
+ CacheEvent cache_event{};
cache_event.event_type = EventType::LoadNext;
cache_event.pos = pos;
cache_event.afile = afile;
- CacheChannel c{};
- c.channel_index = channel_index;
- c.samples = buffer;
+ CacheChannel cache_channel{};
+ cache_channel.channel_index = channel_index;
+ cache_channel.samples = buffer;
*ready = false;
- c.ready = ready;
+ cache_channel.ready = ready;
- cache_event.channels.insert(cache_event.channels.end(), c);
+ cache_event.channels.insert(cache_event.channels.end(), cache_channel);
pushEvent(cache_event);
}
-void AudioCacheEventHandler::pushCloseEvent(cacheid_t id)
+void AudioCacheEventHandler::pushCloseEvent(cacheid_t cacheid)
{
- CacheEvent cache_event;
+ CacheEvent cache_event{};
cache_event.event_type = EventType::Close;
- cache_event.id = id;
+ cache_event.id = cacheid;
pushEvent(cache_event);
}
@@ -197,7 +198,7 @@ void AudioCacheEventHandler::clearEvents()
eventqueue.clear();
}
-void AudioCacheEventHandler::handleLoadNextEvent(CacheEvent& cache_event)
+void AudioCacheEventHandler::handleLoadNextEvent(CacheEvent& cache_event) const
{
assert(cache_event.afile); // Assert that we have an audio file
@@ -211,20 +212,21 @@ void AudioCacheEventHandler::handleCloseEvent(CacheEvent& cache_event)
handleCloseCache(cache_event.id);
}
-void AudioCacheEventHandler::handleCloseCache(cacheid_t id)
+void AudioCacheEventHandler::handleCloseCache(cacheid_t cacheid)
{
- auto& cache = id_manager.getCache(id);
+ auto& cache = id_manager.getCache(cacheid);
// Only close the file if we have also opened it.
- if(cache.afile)
+ if(cache.afile != nullptr)
{
files.releaseFile(cache.afile->getFilename());
}
- delete[] cache.front;
- delete[] cache.back;
+ //delete[] cache.front;
+ //delete[] cache.back;
+ cache.deleteChunks();
- id_manager.releaseID(id);
+ id_manager.releaseID(cacheid);
}
void AudioCacheEventHandler::handleEvent(CacheEvent& cache_event)
diff --git a/src/audiocacheeventhandler.h b/src/audiocacheeventhandler.h
index 8de812b..e676f6e 100644
--- a/src/audiocacheeventhandler.h
+++ b/src/audiocacheeventhandler.h
@@ -36,7 +36,7 @@
#include "audiocachefile.h"
#include "audiocacheidmanager.h"
-class CacheEvent;
+struct CacheEvent;
class AudioCacheEventHandler
: protected Thread
@@ -71,7 +71,7 @@ public:
void pushLoadNextEvent(AudioCacheFile* afile, size_t channel_index,
size_t pos, sample_t* buffer,
volatile bool* ready);
- void pushCloseEvent(cacheid_t id);
+ void pushCloseEvent(cacheid_t cacheid);
void setChunkSize(size_t chunksize);
size_t getChunkSize() const;
@@ -81,13 +81,13 @@ public:
protected:
void clearEvents();
- void handleLoadNextEvent(CacheEvent& cache_event);
+ void handleLoadNextEvent(CacheEvent& cache_event) const;
//! Lock the mutex and calls handleCloseCache
void handleCloseEvent(CacheEvent& cache_event);
//! Close decrease the file ref and release the cache id.
- void handleCloseCache(cacheid_t id);
+ void handleCloseCache(cacheid_t cacheid);
void handleEvent(CacheEvent& cache_event);
diff --git a/src/audiocacheidmanager.cc b/src/audiocacheidmanager.cc
index 693ed3c..80b0f98 100644
--- a/src/audiocacheidmanager.cc
+++ b/src/audiocacheidmanager.cc
@@ -29,6 +29,21 @@
#include <limits>
#include <cassert>
+void CacheBuffer::allocBack(std::size_t chunk_size)
+{
+ back = new sample_t[chunk_size];
+}
+
+void CacheBuffer::deleteChunks() const
+{
+ delete[] front;
+ delete[] back;
+}
+
+void CacheBuffer::swap() noexcept
+{
+ std::swap(front, back);
+}
AudioCacheIDManager::~AudioCacheIDManager()
{
@@ -41,30 +56,30 @@ void AudioCacheIDManager::init(unsigned int capacity)
id2cache.resize(capacity);
available_ids.resize(capacity);
- for(size_t i = 0; i < capacity; ++i)
+ for(int i = 0; i < static_cast<int>(capacity); ++i)
{
available_ids[i] = i;
}
}
-cache_t& AudioCacheIDManager::getCache(cacheid_t id)
+CacheBuffer& AudioCacheIDManager::getCache(cacheid_t cacheid)
{
const std::lock_guard<std::mutex> guard(mutex);
- assert(id != CACHE_NOID);
- assert(id != CACHE_DUMMYID);
- assert(id >= 0);
- assert(id < (int)id2cache.size());
- assert(id2cache[id].id == id);
+ assert(cacheid != CACHE_NOID);
+ assert(cacheid != CACHE_DUMMYID);
+ assert(cacheid >= 0);
+ assert(cacheid < (int)id2cache.size());
+ assert(id2cache[cacheid].id == cacheid);
- return id2cache[id];
+ return id2cache[cacheid];
}
-cacheid_t AudioCacheIDManager::registerID(const cache_t& cache)
+cacheid_t AudioCacheIDManager::registerID(const CacheBuffer& cache)
{
const std::lock_guard<std::mutex> guard(mutex);
- cacheid_t id = CACHE_NOID;
+ cacheid_t cacheid = CACHE_NOID;
if(available_ids.empty())
{
@@ -72,27 +87,27 @@ cacheid_t AudioCacheIDManager::registerID(const cache_t& cache)
}
else
{
- id = available_ids.back();
+ cacheid = available_ids.back();
available_ids.pop_back();
}
- assert(id2cache[id].id == CACHE_NOID); // Make sure it is not already in use
+ assert(id2cache[cacheid].id == CACHE_NOID); // Make sure it is not already in use
- id2cache[id] = cache;
- id2cache[id].id = id;
+ id2cache[cacheid] = cache;
+ id2cache[cacheid].id = cacheid;
- return id;
+ return cacheid;
}
-void AudioCacheIDManager::releaseID(cacheid_t id)
+void AudioCacheIDManager::releaseID(cacheid_t cacheid)
{
const std::lock_guard<std::mutex> guard(mutex);
- assert(id2cache[id].id != CACHE_NOID); // Test if it wasn't already released.
+ assert(id2cache[cacheid].id != CACHE_NOID); // Test if it wasn't already released.
- id2cache[id].id = CACHE_NOID;
+ id2cache[cacheid].id = CACHE_NOID;
- available_ids.push_back(id);
+ available_ids.push_back(cacheid);
}
void AudioCacheIDManager::disableActive()
diff --git a/src/audiocacheidmanager.h b/src/audiocacheidmanager.h
index 2bbe09d..d440415 100644
--- a/src/audiocacheidmanager.h
+++ b/src/audiocacheidmanager.h
@@ -36,25 +36,30 @@
class AudioCacheFile;
-#define CACHE_DUMMYID -2
-#define CACHE_NOID -1
+using cacheid_t = int;
-typedef int cacheid_t;
+constexpr cacheid_t CACHE_DUMMYID{-2};
+constexpr cacheid_t CACHE_NOID{-1};
-struct cache_t
+class CacheBuffer
{
- cacheid_t id{CACHE_NOID}; //< Current id of this cache_t. CACHE_NOID means not in use.
+public:
+ void allocBack(std::size_t chunk_size);
+ void deleteChunks() const;
+ void swap() noexcept;
+
+ cacheid_t id{CACHE_NOID}; //< Current id of this CacheBuffer. CACHE_NOID means not in use.
- AudioCacheFile* afile{nullptr};
- size_t channel{0};
- size_t pos{0}; //< File position
+ AudioCacheFile* afile{};
+ size_t channel{};
+ size_t pos{}; //< File position
volatile bool ready{false};
- gsl::owner<sample_t*> front{nullptr};
- gsl::owner<sample_t*> back{nullptr};
- size_t localpos{0}; //< Intra buffer (front) position.
+ gsl::owner<sample_t*> front{};
+ gsl::owner<sample_t*> back{};
+ size_t localpos{}; //< Intra buffer (front) position.
- sample_t* preloaded_samples{nullptr}; // nullptr means preload buffer not active.
- size_t preloaded_samples_size{0};
+ sample_t* preloaded_samples{}; // nullptr means preload buffer not active.
+ size_t preloaded_samples_size{};
};
class AudioCacheIDManager
@@ -71,16 +76,16 @@ public:
//! Get the cache object connected with the specified cacheid.
//! Note: The cacheid MUST be active.
- cache_t& getCache(cacheid_t id);
+ CacheBuffer& getCache(cacheid_t cacheid);
//! Reserve a new cache object and return its cacheid.
//! The contents of the supplied cache object will be copied to the new
//! cache object.
- cacheid_t registerID(const cache_t& cache);
+ cacheid_t registerID(const CacheBuffer& cache);
//! Release a cache object and its correseponding cacheid.
//! After this call the cacheid can no longer be used.
- void releaseID(cacheid_t id);
+ void releaseID(cacheid_t cacheid);
protected:
// For AudioCacheEventHandler
@@ -89,6 +94,6 @@ protected:
std::mutex mutex;
- std::vector<cache_t> id2cache;
+ std::vector<CacheBuffer> id2cache;
std::vector<cacheid_t> available_ids;
};
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 15:18:11 +0000