mirror of
https://github.com/mozilla/gecko-dev.git
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5f8f360823
MozReview-Commit-ID: BIZ1GQEZ1vs --HG-- extra : rebase_source : 2f1f0aa12493c44f352d9a7e8683e7bb72d2d75b
892 lines
24 KiB
C++
892 lines
24 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* vim: sw=2 ts=2 et lcs=trail\:.,tab\:>~ :
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include <limits.h>
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#include <stdio.h>
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#include "nsError.h"
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#include "nsMemory.h"
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#include "nsThreadUtils.h"
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#include "nsIClassInfoImpl.h"
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#include "Variant.h"
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#include "mozIStorageError.h"
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#include "mozStorageBindingParams.h"
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#include "mozStorageConnection.h"
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#include "mozStorageStatementJSHelper.h"
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#include "mozStoragePrivateHelpers.h"
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#include "mozStorageStatementParams.h"
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#include "mozStorageStatementRow.h"
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#include "mozStorageStatement.h"
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#include "GeckoProfiler.h"
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#include "nsDOMClassInfo.h"
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#include "mozilla/Logging.h"
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#include "mozilla/Printf.h"
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extern mozilla::LazyLogModule gStorageLog;
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namespace mozilla {
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namespace storage {
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////////////////////////////////////////////////////////////////////////////////
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//// nsIClassInfo
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NS_IMPL_CI_INTERFACE_GETTER(Statement,
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mozIStorageStatement,
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mozIStorageBaseStatement,
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mozIStorageBindingParams,
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mozIStorageValueArray,
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mozilla::storage::StorageBaseStatementInternal)
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class StatementClassInfo : public nsIClassInfo
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{
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public:
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constexpr StatementClassInfo() {}
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NS_DECL_ISUPPORTS_INHERITED
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NS_IMETHOD
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GetInterfaces(uint32_t *_count, nsIID ***_array) override
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{
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return NS_CI_INTERFACE_GETTER_NAME(Statement)(_count, _array);
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}
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NS_IMETHOD
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GetScriptableHelper(nsIXPCScriptable **_helper) override
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{
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static StatementJSHelper sJSHelper;
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*_helper = &sJSHelper;
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return NS_OK;
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}
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NS_IMETHOD
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GetContractID(char **_contractID) override
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{
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*_contractID = nullptr;
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return NS_OK;
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}
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NS_IMETHOD
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GetClassDescription(char **_desc) override
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{
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*_desc = nullptr;
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return NS_OK;
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}
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NS_IMETHOD
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GetClassID(nsCID **_id) override
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{
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*_id = nullptr;
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return NS_OK;
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}
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NS_IMETHOD
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GetFlags(uint32_t *_flags) override
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{
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*_flags = 0;
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return NS_OK;
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}
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NS_IMETHOD
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GetClassIDNoAlloc(nsCID *_cid) override
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{
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return NS_ERROR_NOT_AVAILABLE;
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}
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};
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NS_IMETHODIMP_(MozExternalRefCountType) StatementClassInfo::AddRef() { return 2; }
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NS_IMETHODIMP_(MozExternalRefCountType) StatementClassInfo::Release() { return 1; }
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NS_IMPL_QUERY_INTERFACE(StatementClassInfo, nsIClassInfo)
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static StatementClassInfo sStatementClassInfo;
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////////////////////////////////////////////////////////////////////////////////
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//// Statement
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Statement::Statement()
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: StorageBaseStatementInternal()
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, mDBStatement(nullptr)
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, mColumnNames()
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, mExecuting(false)
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{
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}
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nsresult
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Statement::initialize(Connection *aDBConnection,
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sqlite3 *aNativeConnection,
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const nsACString &aSQLStatement)
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{
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MOZ_ASSERT(aDBConnection, "No database connection given!");
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MOZ_ASSERT(!aDBConnection->isClosed(), "Database connection should be valid");
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MOZ_ASSERT(!mDBStatement, "Statement already initialized!");
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MOZ_ASSERT(aNativeConnection, "No native connection given!");
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int srv = aDBConnection->prepareStatement(aNativeConnection,
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PromiseFlatCString(aSQLStatement),
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&mDBStatement);
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if (srv != SQLITE_OK) {
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MOZ_LOG(gStorageLog, LogLevel::Error,
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("Sqlite statement prepare error: %d '%s'", srv,
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::sqlite3_errmsg(aNativeConnection)));
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MOZ_LOG(gStorageLog, LogLevel::Error,
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("Statement was: '%s'", PromiseFlatCString(aSQLStatement).get()));
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return NS_ERROR_FAILURE;
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}
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MOZ_LOG(gStorageLog, LogLevel::Debug, ("Initialized statement '%s' (0x%p)",
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PromiseFlatCString(aSQLStatement).get(),
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mDBStatement));
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mDBConnection = aDBConnection;
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mNativeConnection = aNativeConnection;
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mParamCount = ::sqlite3_bind_parameter_count(mDBStatement);
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mResultColumnCount = ::sqlite3_column_count(mDBStatement);
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mColumnNames.Clear();
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nsCString* columnNames = mColumnNames.AppendElements(mResultColumnCount);
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for (uint32_t i = 0; i < mResultColumnCount; i++) {
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const char *name = ::sqlite3_column_name(mDBStatement, i);
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columnNames[i].Assign(name);
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}
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#ifdef DEBUG
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// We want to try and test for LIKE and that consumers are using
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// escapeStringForLIKE instead of just trusting user input. The idea to
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// check to see if they are binding a parameter after like instead of just
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// using a string. We only do this in debug builds because it's expensive!
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const nsCaseInsensitiveCStringComparator c;
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nsACString::const_iterator start, end, e;
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aSQLStatement.BeginReading(start);
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aSQLStatement.EndReading(end);
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e = end;
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while (::FindInReadable(NS_LITERAL_CSTRING(" LIKE"), start, e, c)) {
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// We have a LIKE in here, so we perform our tests
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// FindInReadable moves the iterator, so we have to get a new one for
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// each test we perform.
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nsACString::const_iterator s1, s2, s3;
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s1 = s2 = s3 = start;
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if (!(::FindInReadable(NS_LITERAL_CSTRING(" LIKE ?"), s1, end, c) ||
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::FindInReadable(NS_LITERAL_CSTRING(" LIKE :"), s2, end, c) ||
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::FindInReadable(NS_LITERAL_CSTRING(" LIKE @"), s3, end, c))) {
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// At this point, we didn't find a LIKE statement followed by ?, :,
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// or @, all of which are valid characters for binding a parameter.
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// We will warn the consumer that they may not be safely using LIKE.
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NS_WARNING("Unsafe use of LIKE detected! Please ensure that you "
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"are using mozIStorageStatement::escapeStringForLIKE "
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"and that you are binding that result to the statement "
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"to prevent SQL injection attacks.");
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}
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// resetting start and e
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start = e;
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e = end;
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}
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#endif
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return NS_OK;
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}
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mozIStorageBindingParams *
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Statement::getParams()
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{
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nsresult rv;
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// If we do not have an array object yet, make it.
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if (!mParamsArray) {
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nsCOMPtr<mozIStorageBindingParamsArray> array;
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rv = NewBindingParamsArray(getter_AddRefs(array));
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NS_ENSURE_SUCCESS(rv, nullptr);
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mParamsArray = static_cast<BindingParamsArray *>(array.get());
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}
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// If there isn't already any rows added, we'll have to add one to use.
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if (mParamsArray->length() == 0) {
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RefPtr<BindingParams> params(new BindingParams(mParamsArray, this));
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NS_ENSURE_TRUE(params, nullptr);
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rv = mParamsArray->AddParams(params);
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NS_ENSURE_SUCCESS(rv, nullptr);
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// We have to unlock our params because AddParams locks them. This is safe
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// because no reference to the params object was, or ever will be given out.
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params->unlock(this);
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// We also want to lock our array at this point - we don't want anything to
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// be added to it. Nothing has, or will ever get a reference to it, but we
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// will get additional safety checks via assertions by doing this.
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mParamsArray->lock();
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}
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return *mParamsArray->begin();
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}
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Statement::~Statement()
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{
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(void)internalFinalize(true);
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}
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////////////////////////////////////////////////////////////////////////////////
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//// nsISupports
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NS_IMPL_ADDREF(Statement)
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NS_IMPL_RELEASE(Statement)
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NS_INTERFACE_MAP_BEGIN(Statement)
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NS_INTERFACE_MAP_ENTRY(mozIStorageStatement)
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NS_INTERFACE_MAP_ENTRY(mozIStorageBaseStatement)
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NS_INTERFACE_MAP_ENTRY(mozIStorageBindingParams)
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NS_INTERFACE_MAP_ENTRY(mozIStorageValueArray)
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NS_INTERFACE_MAP_ENTRY(mozilla::storage::StorageBaseStatementInternal)
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if (aIID.Equals(NS_GET_IID(nsIClassInfo))) {
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foundInterface = static_cast<nsIClassInfo *>(&sStatementClassInfo);
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}
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else
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NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, mozIStorageStatement)
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NS_INTERFACE_MAP_END
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////////////////////////////////////////////////////////////////////////////////
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//// StorageBaseStatementInternal
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Connection *
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Statement::getOwner()
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{
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return mDBConnection;
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}
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int
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Statement::getAsyncStatement(sqlite3_stmt **_stmt)
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{
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// If we have no statement, we shouldn't be calling this method!
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NS_ASSERTION(mDBStatement != nullptr, "We have no statement to clone!");
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// If we do not yet have a cached async statement, clone our statement now.
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if (!mAsyncStatement) {
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nsDependentCString sql(::sqlite3_sql(mDBStatement));
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int rc = mDBConnection->prepareStatement(mNativeConnection, sql,
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&mAsyncStatement);
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if (rc != SQLITE_OK) {
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*_stmt = nullptr;
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return rc;
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}
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MOZ_LOG(gStorageLog, LogLevel::Debug,
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("Cloned statement 0x%p to 0x%p", mDBStatement, mAsyncStatement));
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}
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*_stmt = mAsyncStatement;
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return SQLITE_OK;
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}
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nsresult
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Statement::getAsynchronousStatementData(StatementData &_data)
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{
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if (!mDBStatement)
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return NS_ERROR_UNEXPECTED;
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sqlite3_stmt *stmt;
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int rc = getAsyncStatement(&stmt);
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if (rc != SQLITE_OK)
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return convertResultCode(rc);
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_data = StatementData(stmt, bindingParamsArray(), this);
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return NS_OK;
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}
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already_AddRefed<mozIStorageBindingParams>
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Statement::newBindingParams(mozIStorageBindingParamsArray *aOwner)
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{
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nsCOMPtr<mozIStorageBindingParams> params = new BindingParams(aOwner, this);
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return params.forget();
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}
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////////////////////////////////////////////////////////////////////////////////
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//// mozIStorageStatement
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// proxy to StorageBaseStatementInternal using its define helper.
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MIXIN_IMPL_STORAGEBASESTATEMENTINTERNAL(Statement, (void)0;)
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NS_IMETHODIMP
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Statement::Clone(mozIStorageStatement **_statement)
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{
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RefPtr<Statement> statement(new Statement());
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NS_ENSURE_TRUE(statement, NS_ERROR_OUT_OF_MEMORY);
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nsAutoCString sql(::sqlite3_sql(mDBStatement));
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nsresult rv = statement->initialize(mDBConnection, mNativeConnection, sql);
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NS_ENSURE_SUCCESS(rv, rv);
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statement.forget(_statement);
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return NS_OK;
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}
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NS_IMETHODIMP
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Statement::Finalize()
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{
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return internalFinalize(false);
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}
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nsresult
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Statement::internalFinalize(bool aDestructing)
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{
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if (!mDBStatement)
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return NS_OK;
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int srv = SQLITE_OK;
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if (!mDBConnection->isClosed()) {
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//
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// The connection is still open. While statement finalization and
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// closing may, in some cases, take place in two distinct threads,
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// we have a guarantee that the connection will remain open until
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// this method terminates:
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//
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// a. The connection will be closed synchronously. In this case,
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// there is no race condition, as everything takes place on the
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// same thread.
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//
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// b. The connection is closed asynchronously and this code is
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// executed on the opener thread. In this case, asyncClose() has
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// not been called yet and will not be called before we return
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// from this function.
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//
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// c. The connection is closed asynchronously and this code is
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// executed on the async execution thread. In this case,
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// AsyncCloseConnection::Run() has not been called yet and will
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// not be called before we return from this function.
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//
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// In either case, the connection is still valid, hence closing
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// here is safe.
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//
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MOZ_LOG(gStorageLog, LogLevel::Debug, ("Finalizing statement '%s' during garbage-collection",
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::sqlite3_sql(mDBStatement)));
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srv = ::sqlite3_finalize(mDBStatement);
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}
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#ifdef DEBUG
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else {
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//
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// The database connection is either closed or closing. The sqlite
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// statement has either been finalized already by the connection
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// or is about to be finalized by the connection.
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//
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// Finalizing it here would be useless and segfaultish.
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//
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char *msg = ::mozilla::Smprintf("SQL statement (%p) should have been finalized"
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" before garbage-collection. For more details on this statement, set"
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" NSPR_LOG_MESSAGES=mozStorage:5 .",
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mDBStatement);
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//
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// Note that we can't display the statement itself, as the data structure
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// is not valid anymore. However, the address shown here should help
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// developers correlate with the more complete debug message triggered
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// by AsyncClose().
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//
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#if 0
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// Deactivate the warning until we have fixed the exising culprit
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// (see bug 914070).
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NS_WARNING(msg);
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#endif // 0
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// Use %s so we aren't exposing random strings to printf interpolation.
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MOZ_LOG(gStorageLog, LogLevel::Warning, ("%s", msg));
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::mozilla::SmprintfFree(msg);
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}
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#endif
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mDBStatement = nullptr;
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if (mAsyncStatement) {
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// If the destructor called us, there are no pending async statements (they
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// hold a reference to us) and we can/must just kill the statement directly.
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if (aDestructing)
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destructorAsyncFinalize();
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else
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asyncFinalize();
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}
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// Release the holders, so they can release the reference to us.
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mStatementParamsHolder = nullptr;
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mStatementRowHolder = nullptr;
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return convertResultCode(srv);
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}
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NS_IMETHODIMP
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Statement::GetParameterCount(uint32_t *_parameterCount)
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{
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if (!mDBStatement)
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return NS_ERROR_NOT_INITIALIZED;
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*_parameterCount = mParamCount;
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return NS_OK;
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}
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NS_IMETHODIMP
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Statement::GetParameterName(uint32_t aParamIndex,
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nsACString &_name)
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{
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if (!mDBStatement)
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return NS_ERROR_NOT_INITIALIZED;
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ENSURE_INDEX_VALUE(aParamIndex, mParamCount);
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const char *name = ::sqlite3_bind_parameter_name(mDBStatement,
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aParamIndex + 1);
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if (name == nullptr) {
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// this thing had no name, so fake one
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nsAutoCString fakeName(":");
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fakeName.AppendInt(aParamIndex);
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_name.Assign(fakeName);
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}
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else {
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_name.Assign(nsDependentCString(name));
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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Statement::GetParameterIndex(const nsACString &aName,
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uint32_t *_index)
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{
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if (!mDBStatement)
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return NS_ERROR_NOT_INITIALIZED;
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// We do not accept any forms of names other than ":name", but we need to add
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// the colon for SQLite.
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nsAutoCString name(":");
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name.Append(aName);
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int ind = ::sqlite3_bind_parameter_index(mDBStatement, name.get());
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if (ind == 0) // Named parameter not found.
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return NS_ERROR_INVALID_ARG;
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*_index = ind - 1; // SQLite indexes are 1-based, we are 0-based.
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return NS_OK;
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}
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NS_IMETHODIMP
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Statement::GetColumnCount(uint32_t *_columnCount)
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{
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if (!mDBStatement)
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return NS_ERROR_NOT_INITIALIZED;
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*_columnCount = mResultColumnCount;
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return NS_OK;
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}
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NS_IMETHODIMP
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Statement::GetColumnName(uint32_t aColumnIndex,
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nsACString &_name)
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{
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if (!mDBStatement)
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return NS_ERROR_NOT_INITIALIZED;
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ENSURE_INDEX_VALUE(aColumnIndex, mResultColumnCount);
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const char *cname = ::sqlite3_column_name(mDBStatement, aColumnIndex);
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_name.Assign(nsDependentCString(cname));
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return NS_OK;
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}
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NS_IMETHODIMP
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Statement::GetColumnIndex(const nsACString &aName,
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uint32_t *_index)
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{
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if (!mDBStatement)
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return NS_ERROR_NOT_INITIALIZED;
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// Surprisingly enough, SQLite doesn't provide an API for this. We have to
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// determine it ourselves sadly.
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for (uint32_t i = 0; i < mResultColumnCount; i++) {
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if (mColumnNames[i].Equals(aName)) {
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*_index = i;
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return NS_OK;
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}
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}
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return NS_ERROR_INVALID_ARG;
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}
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NS_IMETHODIMP
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Statement::Reset()
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{
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if (!mDBStatement)
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return NS_ERROR_NOT_INITIALIZED;
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#ifdef DEBUG
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MOZ_LOG(gStorageLog, LogLevel::Debug, ("Resetting statement: '%s'",
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::sqlite3_sql(mDBStatement)));
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checkAndLogStatementPerformance(mDBStatement);
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#endif
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mParamsArray = nullptr;
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(void)sqlite3_reset(mDBStatement);
|
|
(void)sqlite3_clear_bindings(mDBStatement);
|
|
|
|
mExecuting = false;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
Statement::BindParameters(mozIStorageBindingParamsArray *aParameters)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aParameters);
|
|
|
|
if (!mDBStatement)
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
|
|
BindingParamsArray *array = static_cast<BindingParamsArray *>(aParameters);
|
|
if (array->getOwner() != this)
|
|
return NS_ERROR_UNEXPECTED;
|
|
|
|
if (array->length() == 0)
|
|
return NS_ERROR_UNEXPECTED;
|
|
|
|
mParamsArray = array;
|
|
mParamsArray->lock();
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
Statement::Execute()
|
|
{
|
|
if (!mDBStatement)
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
|
|
bool ret;
|
|
nsresult rv = ExecuteStep(&ret);
|
|
nsresult rv2 = Reset();
|
|
|
|
return NS_FAILED(rv) ? rv : rv2;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
Statement::ExecuteStep(bool *_moreResults)
|
|
{
|
|
PROFILER_LABEL("Statement", "ExecuteStep",
|
|
js::ProfileEntry::Category::STORAGE);
|
|
|
|
if (!mDBStatement)
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
|
|
// Bind any parameters first before executing.
|
|
if (mParamsArray) {
|
|
// If we have more than one row of parameters to bind, they shouldn't be
|
|
// calling this method (and instead use executeAsync).
|
|
if (mParamsArray->length() != 1)
|
|
return NS_ERROR_UNEXPECTED;
|
|
|
|
BindingParamsArray::iterator row = mParamsArray->begin();
|
|
nsCOMPtr<IStorageBindingParamsInternal> bindingInternal =
|
|
do_QueryInterface(*row);
|
|
nsCOMPtr<mozIStorageError> error = bindingInternal->bind(mDBStatement);
|
|
if (error) {
|
|
int32_t srv;
|
|
(void)error->GetResult(&srv);
|
|
return convertResultCode(srv);
|
|
}
|
|
|
|
// We have bound, so now we can clear our array.
|
|
mParamsArray = nullptr;
|
|
}
|
|
int srv = mDBConnection->stepStatement(mNativeConnection, mDBStatement);
|
|
|
|
if (srv != SQLITE_ROW && srv != SQLITE_DONE && MOZ_LOG_TEST(gStorageLog, LogLevel::Debug)) {
|
|
nsAutoCString errStr;
|
|
(void)mDBConnection->GetLastErrorString(errStr);
|
|
MOZ_LOG(gStorageLog, LogLevel::Debug,
|
|
("Statement::ExecuteStep error: %s", errStr.get()));
|
|
}
|
|
|
|
// SQLITE_ROW and SQLITE_DONE are non-errors
|
|
if (srv == SQLITE_ROW) {
|
|
// we got a row back
|
|
mExecuting = true;
|
|
*_moreResults = true;
|
|
return NS_OK;
|
|
}
|
|
else if (srv == SQLITE_DONE) {
|
|
// statement is done (no row returned)
|
|
mExecuting = false;
|
|
*_moreResults = false;
|
|
return NS_OK;
|
|
}
|
|
else if (srv == SQLITE_BUSY || srv == SQLITE_MISUSE) {
|
|
mExecuting = false;
|
|
}
|
|
else if (mExecuting) {
|
|
MOZ_LOG(gStorageLog, LogLevel::Error,
|
|
("SQLite error after mExecuting was true!"));
|
|
mExecuting = false;
|
|
}
|
|
|
|
return convertResultCode(srv);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
Statement::GetState(int32_t *_state)
|
|
{
|
|
if (!mDBStatement)
|
|
*_state = MOZ_STORAGE_STATEMENT_INVALID;
|
|
else if (mExecuting)
|
|
*_state = MOZ_STORAGE_STATEMENT_EXECUTING;
|
|
else
|
|
*_state = MOZ_STORAGE_STATEMENT_READY;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//// mozIStorageValueArray (now part of mozIStorageStatement too)
|
|
|
|
NS_IMETHODIMP
|
|
Statement::GetNumEntries(uint32_t *_length)
|
|
{
|
|
*_length = mResultColumnCount;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
Statement::GetTypeOfIndex(uint32_t aIndex,
|
|
int32_t *_type)
|
|
{
|
|
if (!mDBStatement)
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
|
|
ENSURE_INDEX_VALUE(aIndex, mResultColumnCount);
|
|
|
|
if (!mExecuting)
|
|
return NS_ERROR_UNEXPECTED;
|
|
|
|
int t = ::sqlite3_column_type(mDBStatement, aIndex);
|
|
switch (t) {
|
|
case SQLITE_INTEGER:
|
|
*_type = mozIStorageStatement::VALUE_TYPE_INTEGER;
|
|
break;
|
|
case SQLITE_FLOAT:
|
|
*_type = mozIStorageStatement::VALUE_TYPE_FLOAT;
|
|
break;
|
|
case SQLITE_TEXT:
|
|
*_type = mozIStorageStatement::VALUE_TYPE_TEXT;
|
|
break;
|
|
case SQLITE_BLOB:
|
|
*_type = mozIStorageStatement::VALUE_TYPE_BLOB;
|
|
break;
|
|
case SQLITE_NULL:
|
|
*_type = mozIStorageStatement::VALUE_TYPE_NULL;
|
|
break;
|
|
default:
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
Statement::GetInt32(uint32_t aIndex,
|
|
int32_t *_value)
|
|
{
|
|
if (!mDBStatement)
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
|
|
ENSURE_INDEX_VALUE(aIndex, mResultColumnCount);
|
|
|
|
if (!mExecuting)
|
|
return NS_ERROR_UNEXPECTED;
|
|
|
|
*_value = ::sqlite3_column_int(mDBStatement, aIndex);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
Statement::GetInt64(uint32_t aIndex,
|
|
int64_t *_value)
|
|
{
|
|
if (!mDBStatement)
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
|
|
ENSURE_INDEX_VALUE(aIndex, mResultColumnCount);
|
|
|
|
if (!mExecuting)
|
|
return NS_ERROR_UNEXPECTED;
|
|
|
|
*_value = ::sqlite3_column_int64(mDBStatement, aIndex);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
Statement::GetDouble(uint32_t aIndex,
|
|
double *_value)
|
|
{
|
|
if (!mDBStatement)
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
|
|
ENSURE_INDEX_VALUE(aIndex, mResultColumnCount);
|
|
|
|
if (!mExecuting)
|
|
return NS_ERROR_UNEXPECTED;
|
|
|
|
*_value = ::sqlite3_column_double(mDBStatement, aIndex);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
Statement::GetUTF8String(uint32_t aIndex,
|
|
nsACString &_value)
|
|
{
|
|
// Get type of Index will check aIndex for us, so we don't have to.
|
|
int32_t type;
|
|
nsresult rv = GetTypeOfIndex(aIndex, &type);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
if (type == mozIStorageStatement::VALUE_TYPE_NULL) {
|
|
// NULL columns should have IsVoid set to distinguish them from the empty
|
|
// string.
|
|
_value.SetIsVoid(true);
|
|
}
|
|
else {
|
|
const char *value =
|
|
reinterpret_cast<const char *>(::sqlite3_column_text(mDBStatement,
|
|
aIndex));
|
|
_value.Assign(value, ::sqlite3_column_bytes(mDBStatement, aIndex));
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
Statement::GetString(uint32_t aIndex,
|
|
nsAString &_value)
|
|
{
|
|
// Get type of Index will check aIndex for us, so we don't have to.
|
|
int32_t type;
|
|
nsresult rv = GetTypeOfIndex(aIndex, &type);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
if (type == mozIStorageStatement::VALUE_TYPE_NULL) {
|
|
// NULL columns should have IsVoid set to distinguish them from the empty
|
|
// string.
|
|
_value.SetIsVoid(true);
|
|
} else {
|
|
const char16_t *value =
|
|
static_cast<const char16_t *>(::sqlite3_column_text16(mDBStatement,
|
|
aIndex));
|
|
_value.Assign(value, ::sqlite3_column_bytes16(mDBStatement, aIndex) / 2);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
Statement::GetBlob(uint32_t aIndex,
|
|
uint32_t *_size,
|
|
uint8_t **_blob)
|
|
{
|
|
if (!mDBStatement)
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
|
|
ENSURE_INDEX_VALUE(aIndex, mResultColumnCount);
|
|
|
|
if (!mExecuting)
|
|
return NS_ERROR_UNEXPECTED;
|
|
|
|
int size = ::sqlite3_column_bytes(mDBStatement, aIndex);
|
|
void *blob = nullptr;
|
|
if (size) {
|
|
blob = nsMemory::Clone(::sqlite3_column_blob(mDBStatement, aIndex), size);
|
|
NS_ENSURE_TRUE(blob, NS_ERROR_OUT_OF_MEMORY);
|
|
}
|
|
|
|
*_blob = static_cast<uint8_t *>(blob);
|
|
*_size = size;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
Statement::GetBlobAsString(uint32_t aIndex, nsAString& aValue)
|
|
{
|
|
return DoGetBlobAsString(this, aIndex, aValue);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
Statement::GetBlobAsUTF8String(uint32_t aIndex, nsACString& aValue)
|
|
{
|
|
return DoGetBlobAsString(this, aIndex, aValue);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
Statement::GetSharedUTF8String(uint32_t aIndex,
|
|
uint32_t *_length,
|
|
const char **_value)
|
|
{
|
|
if (_length)
|
|
*_length = ::sqlite3_column_bytes(mDBStatement, aIndex);
|
|
|
|
*_value = reinterpret_cast<const char *>(::sqlite3_column_text(mDBStatement,
|
|
aIndex));
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
Statement::GetSharedString(uint32_t aIndex,
|
|
uint32_t *_length,
|
|
const char16_t **_value)
|
|
{
|
|
if (_length)
|
|
*_length = ::sqlite3_column_bytes16(mDBStatement, aIndex);
|
|
|
|
*_value = static_cast<const char16_t *>(::sqlite3_column_text16(mDBStatement,
|
|
aIndex));
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
Statement::GetSharedBlob(uint32_t aIndex,
|
|
uint32_t *_size,
|
|
const uint8_t **_blob)
|
|
{
|
|
*_size = ::sqlite3_column_bytes(mDBStatement, aIndex);
|
|
*_blob = static_cast<const uint8_t *>(::sqlite3_column_blob(mDBStatement,
|
|
aIndex));
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
Statement::GetIsNull(uint32_t aIndex,
|
|
bool *_isNull)
|
|
{
|
|
// Get type of Index will check aIndex for us, so we don't have to.
|
|
int32_t type;
|
|
nsresult rv = GetTypeOfIndex(aIndex, &type);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
*_isNull = (type == mozIStorageStatement::VALUE_TYPE_NULL);
|
|
return NS_OK;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//// mozIStorageBindingParams
|
|
|
|
BOILERPLATE_BIND_PROXIES(
|
|
Statement,
|
|
if (!mDBStatement) return NS_ERROR_NOT_INITIALIZED;
|
|
)
|
|
|
|
} // namespace storage
|
|
} // namespace mozilla
|