1 files changed, 0 insertions, 418 deletions
diff --git a/updater/sql/win/src/backup.cc b/updater/sql/win/src/backup.cc
deleted file mode 100755
index 0f971f5..0000000
--- a/updater/sql/win/src/backup.cc
+++ /dev/null
@@ -1,418 +0,0 @@
-#include <cstring>
-#include <napi.h>
-#include "macros.h"
-#include "database.h"
-#include "backup.h"
-
-using namespace node_sqlite3;
-
-Napi::Object Backup::Init(Napi::Env env, Napi::Object exports) {
-    Napi::HandleScope scope(env);
-
-    // declare napi_default_method here as it is only available in Node v14.12.0+
-    auto napi_default_method = static_cast<napi_property_attributes>(napi_writable | napi_configurable);
-
-    auto t = DefineClass(env, "Backup", {
-        InstanceMethod("step", &Backup::Step, napi_default_method),
-        InstanceMethod("finish", &Backup::Finish, napi_default_method),
-        InstanceAccessor("idle", &Backup::IdleGetter, nullptr),
-        InstanceAccessor("completed", &Backup::CompletedGetter, nullptr),
-        InstanceAccessor("failed", &Backup::FailedGetter, nullptr),
-        InstanceAccessor("remaining", &Backup::RemainingGetter, nullptr),
-        InstanceAccessor("pageCount", &Backup::PageCountGetter, nullptr),
-        InstanceAccessor("retryErrors", &Backup::RetryErrorGetter, &Backup::RetryErrorSetter),
-    });
-
-    exports.Set("Backup", t);
-    return exports;
-}
-
-void Backup::Process() {
-    if (finished && !queue.empty()) {
-        return CleanQueue();
-    }
-
-    while (inited && !locked && !queue.empty()) {
-        auto call = std::move(queue.front());
-        queue.pop();
-
-        call->callback(call->baton);
-    }
-}
-
-void Backup::Schedule(Work_Callback callback, Baton* baton) {
-    if (finished) {
-        queue.emplace(new Call(callback, baton));
-        CleanQueue();
-    }
-    else if (!inited || locked || !queue.empty()) {
-        queue.emplace(new Call(callback, baton));
-    }
-    else {
-        callback(baton);
-    }
-}
-
-template <class T> void Backup::Error(T* baton) {
-    auto env = baton->backup->Env();
-    Napi::HandleScope scope(env);
-
-    Backup* backup = baton->backup;
-    // Fail hard on logic errors.
-    assert(backup->status != 0);
-    EXCEPTION(Napi::String::New(env, backup->message), backup->status, exception);
-
-    Napi::Function cb = baton->callback.Value();
-
-    if (!cb.IsEmpty() && cb.IsFunction()) {
-        Napi::Value argv[] = { exception };
-        TRY_CATCH_CALL(backup->Value(), cb, 1, argv);
-    }
-    else {
-        Napi::Value argv[] = { Napi::String::New(env, "error"), exception };
-        EMIT_EVENT(backup->Value(), 2, argv);
-    }
-}
-
-void Backup::CleanQueue() {
-    auto env = this->Env();
-    Napi::HandleScope scope(env);
-
-    if (inited && !queue.empty()) {
-        // This backup has already been initialized and is now finished.
-        // Fire error for all remaining items in the queue.
-        EXCEPTION(Napi::String::New(env, "Backup is already finished"), SQLITE_MISUSE, exception);
-        Napi::Value argv[] = { exception };
-        bool called = false;
-
-        // Clear out the queue so that this object can get GC'ed.
-        while (!queue.empty()) {
-            auto call = std::move(queue.front());
-            queue.pop();
-
-            std::unique_ptr<Baton> baton(call->baton);
-            Napi::Function cb = baton->callback.Value();
-
-            if (inited && !cb.IsEmpty() &&
-                cb.IsFunction()) {
-                TRY_CATCH_CALL(Value(), cb, 1, argv);
-                called = true;
-            }
-        }
-
-        // When we couldn't call a callback function, emit an error on the
-        // Backup object.
-        if (!called) {
-            Napi::Value info[] = { Napi::String::New(env, "error"), exception };
-            EMIT_EVENT(Value(), 2, info);
-        }
-    }
-    else while (!queue.empty()) {
-        // Just delete all items in the queue; we already fired an event when
-        // initializing the backup failed.
-        auto call = std::move(queue.front());
-        queue.pop();
-
-        // We don't call the actual callback, so we have to make sure that
-        // the baton gets destroyed.
-        delete call->baton;
-    }
-}
-
-Backup::Backup(const Napi::CallbackInfo& info) : Napi::ObjectWrap<Backup>(info) {
-    auto env = info.Env();
-    if (!info.IsConstructCall()) {
-        Napi::TypeError::New(env, "Use the new operator to create new Backup objects").ThrowAsJavaScriptException();
-        return;
-    }
-
-    auto length = info.Length();
-
-    if (length <= 0 || !Database::HasInstance(info[0])) {
-        Napi::TypeError::New(env, "Database object expected").ThrowAsJavaScriptException();
-        return;
-    }
-    else if (length <= 1 || !info[1].IsString()) {
-        Napi::TypeError::New(env, "Filename expected").ThrowAsJavaScriptException();
-        return;
-    }
-    else if (length <= 2 || !info[2].IsString()) {
-        Napi::TypeError::New(env, "Source database name expected").ThrowAsJavaScriptException();
-        return;
-    }
-    else if (length <= 3 || !info[3].IsString()) {
-        Napi::TypeError::New(env, "Destination database name expected").ThrowAsJavaScriptException();
-        return;
-    }
-    else if (length <= 4 || !info[4].IsBoolean()) {
-        Napi::TypeError::New(env, "Direction flag expected").ThrowAsJavaScriptException();
-        return;
-    }
-    else if (length > 5 && !info[5].IsUndefined() && !info[5].IsFunction()) {
-        Napi::TypeError::New(env, "Callback expected").ThrowAsJavaScriptException();
-        return;
-    }
-
-    this->db = Napi::ObjectWrap<Database>::Unwrap(info[0].As<Napi::Object>());
-    this->db->Ref();
-
-    auto filename = info[1].As<Napi::String>();
-    auto sourceName = info[2].As<Napi::String>();
-    auto destName = info[3].As<Napi::String>();
-    auto filenameIsDest = info[4].As<Napi::Boolean>();
-
-    info.This().As<Napi::Object>().DefineProperty(Napi::PropertyDescriptor::Value("filename", filename));
-    info.This().As<Napi::Object>().DefineProperty(Napi::PropertyDescriptor::Value("sourceName", sourceName));
-    info.This().As<Napi::Object>().DefineProperty(Napi::PropertyDescriptor::Value("destName", destName));
-    info.This().As<Napi::Object>().DefineProperty(Napi::PropertyDescriptor::Value("filenameIsDest", filenameIsDest));
-
-    auto* baton = new InitializeBaton(this->db, info[5].As<Napi::Function>(), this);
-    baton->filename = filename.Utf8Value();
-    baton->sourceName = sourceName.Utf8Value();
-    baton->destName = destName.Utf8Value();
-    baton->filenameIsDest = filenameIsDest.Value();
-
-    this->db->Schedule(Work_BeginInitialize, baton);
-}
-
-void Backup::Work_BeginInitialize(Database::Baton* baton) {
-    assert(baton->db->open);
-    baton->db->pending++;
-    auto env = baton->db->Env();
-    CREATE_WORK("sqlite3.Backup.Initialize", Work_Initialize, Work_AfterInitialize);
-}
-
-void Backup::Work_Initialize(napi_env e, void* data) {
-    BACKUP_INIT(InitializeBaton);
-
-    // In case stepping fails, we use a mutex to make sure we get the associated
-    // error message.
-    auto* mtx = sqlite3_db_mutex(baton->db->_handle);
-    sqlite3_mutex_enter(mtx);
-
-    backup->status = sqlite3_open(baton->filename.c_str(), &backup->_otherDb);
-
-    if (backup->status == SQLITE_OK) {
-        backup->_handle = sqlite3_backup_init(
-            baton->filenameIsDest ? backup->_otherDb : backup->db->_handle,
-            baton->destName.c_str(),
-            baton->filenameIsDest ? backup->db->_handle : backup->_otherDb,
-            baton->sourceName.c_str());
-    }
-    backup->_destDb = baton->filenameIsDest ? backup->_otherDb : backup->db->_handle;
-
-    if (backup->status != SQLITE_OK) {
-        backup->message = std::string(sqlite3_errmsg(backup->_destDb));
-        sqlite3_close(backup->_otherDb);
-        backup->_otherDb = NULL;
-        backup->_destDb = NULL;
-    }
-
-    sqlite3_mutex_leave(mtx);
-}
-
-void Backup::Work_AfterInitialize(napi_env e, napi_status status, void* data) {
-    std::unique_ptr<InitializeBaton> baton(static_cast<InitializeBaton*>(data));
-    auto* backup = baton->backup;
-
-    auto env = backup->Env();
-    Napi::HandleScope scope(env);
-
-    if (backup->status != SQLITE_OK) {
-        Error(baton.get());
-        backup->FinishAll();
-    }
-    else {
-        backup->inited = true;
-        Napi::Function cb = baton->callback.Value();
-        if (!cb.IsEmpty() && cb.IsFunction()) {
-            Napi::Value argv[] = { env.Null() };
-            TRY_CATCH_CALL(backup->Value(), cb, 1, argv);
-        }
-    }
-    BACKUP_END();
-}
-
-Napi::Value Backup::Step(const Napi::CallbackInfo& info) {
-    auto* backup = this;
-    auto env = backup->Env();
-
-    REQUIRE_ARGUMENT_INTEGER(0, pages);
-    OPTIONAL_ARGUMENT_FUNCTION(1, callback);
-
-    auto* baton = new StepBaton(backup, callback, pages);
-    backup->GetRetryErrors(baton->retryErrorsSet);
-    backup->Schedule(Work_BeginStep, baton);
-    return info.This();
-}
-
-void Backup::Work_BeginStep(Baton* baton) {
-    BACKUP_BEGIN(Step);
-}
-
-void Backup::Work_Step(napi_env e, void* data) {
-    BACKUP_INIT(StepBaton);
-    if (backup->_handle) {
-        backup->status = sqlite3_backup_step(backup->_handle, baton->pages);
-        backup->remaining = sqlite3_backup_remaining(backup->_handle);
-        backup->pageCount = sqlite3_backup_pagecount(backup->_handle);
-    }
-    if (backup->status != SQLITE_OK) {
-        // Text of message is a little awkward to get, since the error is not associated
-        // with a db connection.
-#if SQLITE_VERSION_NUMBER >= 3007015
-        // sqlite3_errstr is a relatively new method
-        backup->message = std::string(sqlite3_errstr(backup->status));
-#else
-        backup->message = "Sqlite error";
-#endif
-        if (baton->retryErrorsSet.size() > 0) {
-            if (baton->retryErrorsSet.find(backup->status) == baton->retryErrorsSet.end()) {
-                backup->FinishSqlite();
-            }
-        }
-    }
-}
-
-void Backup::Work_AfterStep(napi_env e, napi_status status, void* data) {
-    std::unique_ptr<StepBaton> baton(static_cast<StepBaton*>(data));
-    auto* backup = baton->backup;
-
-    auto env = backup->Env();
-    Napi::HandleScope scope(env);
-
-    if (backup->status == SQLITE_DONE) {
-        backup->completed = true;
-    } else if (!backup->_handle) {
-        backup->failed = true;
-    }
-
-    if (backup->status != SQLITE_OK && backup->status != SQLITE_DONE) {
-        Error(baton.get());
-    }
-    else {
-        // Fire callbacks.
-        Napi::Function cb = baton->callback.Value();
-        if (!cb.IsEmpty() && cb.IsFunction()) {
-            Napi::Value argv[] = { env.Null(), Napi::Boolean::New(env, backup->status == SQLITE_DONE) };
-            TRY_CATCH_CALL(backup->Value(), cb, 2, argv);
-        }
-    }
-
-    BACKUP_END();
-}
-
-Napi::Value Backup::Finish(const Napi::CallbackInfo& info) {
-    auto* backup = this;
-    auto env = backup->Env();
-
-    OPTIONAL_ARGUMENT_FUNCTION(0, callback);
-
-    auto* baton = new Baton(backup, callback);
-    backup->Schedule(Work_BeginFinish, baton);
-    return info.This();
-}
-
-void Backup::Work_BeginFinish(Baton* baton) {
-    BACKUP_BEGIN(Finish);
-}
-
-void Backup::Work_Finish(napi_env e, void* data) {
-    BACKUP_INIT(Baton);
-    backup->FinishSqlite();
-}
-
-void Backup::Work_AfterFinish(napi_env e, napi_status status, void* data) {
-    std::unique_ptr<Baton> baton(static_cast<Baton*>(data));
-    auto* backup = baton->backup;
-
-    auto env = backup->Env();
-    Napi::HandleScope scope(env);
-
-    backup->FinishAll();
-
-    // Fire callback in case there was one.
-    Napi::Function cb = baton->callback.Value();
-    if (!cb.IsEmpty() && cb.IsFunction()) {
-        TRY_CATCH_CALL(backup->Value(), cb, 0, NULL);
-    }
-
-    BACKUP_END();
-}
-
-void Backup::FinishAll() {
-    assert(!finished);
-    if (!completed && !failed) {
-        failed = true;
-    }
-    finished = true;
-    CleanQueue();
-    FinishSqlite();
-    db->Unref();
-}
-
-void Backup::FinishSqlite() {
-    if (_handle) {
-        sqlite3_backup_finish(_handle);
-        _handle = NULL;
-    }
-    if (_otherDb) {
-        sqlite3_close(_otherDb);
-        _otherDb = NULL;
-    }
-    _destDb = NULL;
-}
-
-Napi::Value Backup::IdleGetter(const Napi::CallbackInfo& info) {
-    auto* backup = this;
-    bool idle = backup->inited && !backup->locked && backup->queue.empty();
-    return Napi::Boolean::New(this->Env(), idle);
-}
-
-Napi::Value Backup::CompletedGetter(const Napi::CallbackInfo& info) {
-    auto* backup = this;
-    return Napi::Boolean::New(this->Env(), backup->completed);
-}
-
-Napi::Value Backup::FailedGetter(const Napi::CallbackInfo& info) {
-    auto* backup = this;
-    return Napi::Boolean::New(this->Env(), backup->failed);
-}
-
-Napi::Value Backup::RemainingGetter(const Napi::CallbackInfo& info) {
-    auto* backup = this;
-    return Napi::Number::New(this->Env(), backup->remaining);
-}
-
-Napi::Value Backup::PageCountGetter(const Napi::CallbackInfo& info) {
-    auto* backup = this;
-    return Napi::Number::New(this->Env(), backup->pageCount);
-}
-
-Napi::Value Backup::RetryErrorGetter(const Napi::CallbackInfo& info) {
-    auto* backup = this;
-    return backup->retryErrors.Value();
-}
-
-void Backup::RetryErrorSetter(const Napi::CallbackInfo& info, const Napi::Value& value) {
-    auto* backup = this;
-    auto env = backup->Env();
-    if (!value.IsArray()) {
-        Napi::Error::New(env, "retryErrors must be an array").ThrowAsJavaScriptException();
-        return;
-    }
-    Napi::Array array = value.As<Napi::Array>();
-    backup->retryErrors.Reset(array, 1);
-}
-
-void Backup::GetRetryErrors(std::set<int>& retryErrorsSet) {
-    retryErrorsSet.clear();
-    Napi::Array array = retryErrors.Value();
-    auto length = array.Length();
-    for (size_t i = 0; i < length; i++) {
-        Napi::Value code = (array).Get(static_cast<uint32_t>(i));
-        if (code.IsNumber()) {
-            retryErrorsSet.insert(code.As<Napi::Number>().Int32Value());
-        }
-    }
-}