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AUP3: Many corrections and (safe) speed ups

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This reenables synchronous mode by default.  However, for processing
where a power cut or crash can be tolerated, synchronous and journaling
are disabled.  Once the processing is complete, they are reenabled.

Types of processing that are like this are "Save As", "Backup Project",
and "Vacuuming". They all write to a separate project file while
running, so the real project file is safe.

Unfortunately, effects are back to be slow and sluggish.

I believe I've address all of the weird file corruption issues and
I'll continue to continue testing for these.
This commit is contained in:
Leland Lucius
2020-07-17 16:17:42 -05:00
parent c0ec20a641
commit 93d9303c3d
5 changed files with 345 additions and 242 deletions
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39
src/ProjectFileIO.h
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@@ -80,10 +80,6 @@ public:
bool SaveProject(const FilePath &fileName);
bool SaveCopy(const FilePath& fileName);
XMLTagHandler *HandleXMLChild(const wxChar *tag) override;
void WriteXMLHeader(XMLWriter &xmlFile) const;
void WriteXML(XMLWriter &xmlFile, bool recording = false) /* not override */;
wxLongLong GetFreeDiskSpace();
const TranslatableString &GetLastError() const;
@@ -105,22 +101,33 @@ public:
bool ShouldBypass();
// Remove all unused space within a project file
bool Vacuum();
void Vacuum(const std::shared_ptr<TrackList> &tracks);
// The last vacuum check did actually vacuum the project file if true
bool WasVacuumed();
// The last vacuum check found unused blocks in the project file
bool HadUnused();
private:
void WriteXMLHeader(XMLWriter &xmlFile) const;
void WriteXML(XMLWriter &xmlFile, bool recording = false, const std::shared_ptr<TrackList> &tracks = nullptr) /* not override */;
// XMLTagHandler callback methods
bool HandleXMLTag(const wxChar *tag, const wxChar **attrs) override;
XMLTagHandler *HandleXMLChild(const wxChar *tag) override;
void UpdatePrefs() override;
using ExecCB = std::function<int(std::vector<wxString> *result, int cols, char **vals, char **names)>;
using ExecResult = std::vector<std::vector<wxString>>;
using ExecCB = std::function<int(ExecResult &result, int cols, char **vals, char **names)>;
struct ExecParm
{
ExecCB func;
std::vector<wxString> *result;
ExecResult &result;
};
static int ExecCallback(void *data, int cols, char **vals, char **names);
int Exec(const char *query, ExecCB callback, std::vector<wxString> *result);
int Exec(const char *query, ExecCB callback, ExecResult &result);
// The opening of the database may be delayed until demanded.
// Returns a non-null pointer to an open database, or throws an exception
@@ -141,7 +148,7 @@ private:
void UseConnection(sqlite3 *db, const FilePath &filePath);
// Make sure the connection/schema combo is configured the way we want
void ConfigConnection(sqlite3 *db, const wxString &schema = wxT("main"));
void Config(sqlite3 *db, const char *config, const wxString &schema = wxT("main"));
sqlite3 *OpenDB(FilePath fileName = {});
bool CloseDB();
@@ -151,7 +158,8 @@ private:
bool TransactionCommit(const wxString &name);
bool TransactionRollback(const wxString &name);
bool GetValues(const char *sql, std::vector<wxString> &value);
bool Query(const char *sql, ExecResult &result);
bool GetValue(const char *sql, wxString &value);
bool GetBlob(const char *sql, wxMemoryBuffer &buffer);
@@ -172,12 +180,13 @@ private:
// Return a database connection if successful, which caller must close
sqlite3 *CopyTo(const FilePath &destpath,
const TranslatableString &msg,
bool prune = false);
bool prune = false,
const std::shared_ptr<TrackList> &tracks = nullptr);
void SetError(const TranslatableString & msg);
void SetDBError(const TranslatableString & msg);
unsigned long long CalculateUsage();
bool ShouldVacuum(const std::shared_ptr<TrackList> &tracks);
private:
// non-static data members
@@ -198,6 +207,12 @@ private:
// Bypass transactions if database will be deleted after close
bool mBypass;
// Project was vacuumed last time Vacuum() ran
bool mWasVacuumed;
// Project had unused blocks during last Vacuum()
bool mHadUnused;
sqlite3 *mPrevDB;
FilePath mPrevFileName;