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AUP3: Better space usage calculations

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Several improvements in determining how much actual disk space a
sampleblock uses. This allows us to provide how much space will
be recovered when using File -> Compact Project.

In addition, the History window now provides better space estimates.
This commit is contained in:
Leland Lucius
2020-08-01 04:25:42 -05:00
parent 59c3b360b7
commit 8943494f8a
6 changed files with 282 additions and 49 deletions
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24
src/ProjectFileIO.h
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@@ -38,6 +38,8 @@ using SampleBlockID = long long;
using Connection = std::unique_ptr<DBConnection>;
using BlockIDs = std::unordered_set<SampleBlockID>;
///\brief Object associated with a project that manages reading and writing
/// of Audacity project file formats, and autosave
class ProjectFileIO final
@@ -80,6 +82,7 @@ public:
bool OpenProject();
bool CloseProject();
bool ReopenProject();
bool ImportProject(const FilePath &fileName);
bool LoadProject(const FilePath &fileName);
@@ -88,6 +91,11 @@ public:
wxLongLong GetFreeDiskSpace();
int64_t GetBlockUsage(SampleBlockID blockid);
int64_t GetCurrentUsage(const std::shared_ptr<TrackList> &tracks);
int64_t GetTotalUsage();
static int64_t GetDiskUsage(DBConnection *conn, SampleBlockID blockid);
const TranslatableString &GetLastError() const;
const TranslatableString &GetLibraryError() const;
@@ -118,6 +126,10 @@ public:
bool TransactionCommit(const wxString &name);
bool TransactionRollback(const wxString &name);
// In one SQL command, delete sample blocks with ids in the given set, or
// (when complement is true), with ids not in the given set.
bool DeleteBlocks(const BlockIDs &blockids, bool complement);
// Type of function that is given the fields of one row and returns
// 0 for success or non-zero to stop the query
using ExecCB = std::function<int(int cols, char **vals, char **names)>;
@@ -168,15 +180,8 @@ private:
bool WriteDoc(const char *table, const ProjectSerializer &autosave, const char *schema = "main");
// Application defined function to verify blockid exists is in set of blockids
using BlockIDs = std::unordered_set<SampleBlockID>;
static void InSet(sqlite3_context *context, int argc, sqlite3_value **argv);
public:
// In one SQL command, delete sample blocks with ids in the given set, or
// (when complement is true), with ids not in the given set.
bool DeleteBlocks(const BlockIDs &blockids, bool complement);
private:
// Return a database connection if successful, which caller must close
bool CopyTo(const FilePath &destpath,
const TranslatableString &msg,
@@ -189,6 +194,11 @@ private:
bool ShouldCompact(const std::shared_ptr<TrackList> &tracks);
// Gets values from SQLite B-tree structures
static unsigned int get2(const unsigned char *ptr);
static unsigned int get4(const unsigned char *ptr);
static int get_varint(const unsigned char *ptr, int64_t *out);
private:
Connection &CurrConn();