From 60c83971fb19dea49beab3a02c8913f75f62ad09 Mon Sep 17 00:00:00 2001
From: wolfbeast <mcwerewolf@wolfbeast.com>
Date: Fri, 8 Nov 2019 10:49:03 +0100
Subject: Issue #1263 - Part 1: Remove DiskSpaceWatcher

---
 dom/indexedDB/ActorsParent.cpp | 56 ------------------------------------------
 1 file changed, 56 deletions(-)

(limited to 'dom/indexedDB/ActorsParent.cpp')

diff --git a/dom/indexedDB/ActorsParent.cpp b/dom/indexedDB/ActorsParent.cpp
index cd998c31c..74afef452 100644
--- a/dom/indexedDB/ActorsParent.cpp
+++ b/dom/indexedDB/ActorsParent.cpp
@@ -4427,18 +4427,6 @@ CreateStorageConnection(nsIFile* aDBFile,
   nsresult rv;
   bool exists;
 
-  if (IndexedDatabaseManager::InLowDiskSpaceMode()) {
-    rv = aDBFile->Exists(&exists);
-    if (NS_WARN_IF(NS_FAILED(rv))) {
-      return rv;
-    }
-
-    if (!exists) {
-      NS_WARNING("Refusing to create database because disk space is low!");
-      return NS_ERROR_DOM_INDEXEDDB_QUOTA_ERR;
-    }
-  }
-
   nsCOMPtr<nsIFileURL> dbFileUrl;
   rv = GetDatabaseFileURL(aDBFile,
                           aPersistenceType,
@@ -19103,23 +19091,6 @@ DatabaseMaintenance::DetermineMaintenanceAction(
     return NS_OK;
   }
 
-  bool lowDiskSpace = IndexedDatabaseManager::InLowDiskSpaceMode();
-
-  if (QuotaManager::IsRunningXPCShellTests()) {
-    // If we're running XPCShell then we want to test both the low disk space
-    // and normal disk space code paths so pick semi-randomly based on the
-    // current time.
-    lowDiskSpace = ((PR_Now() / PR_USEC_PER_MSEC) % 2) == 0;
-  }
-
-  // If we're low on disk space then the best we can hope for is that an
-  // incremental vacuum might free some space. That is a journaled operation so
-  // it may not be possible even then.
-  if (lowDiskSpace) {
-    *aMaintenanceAction = MaintenanceAction::IncrementalVacuum;
-    return NS_OK;
-  }
-
   // This method shouldn't make any permanent changes to the database, so make
   // sure everything gets rolled back when we leave.
   mozStorageTransaction transaction(aConnection,
@@ -24233,11 +24204,6 @@ CreateFileOp::DoDatabaseWork()
                  "CreateFileOp::DoDatabaseWork",
                  js::ProfileEntry::Category::STORAGE);
 
-  if (NS_WARN_IF(IndexedDatabaseManager::InLowDiskSpaceMode())) {
-    NS_WARNING("Refusing to create file because disk space is low!");
-    return NS_ERROR_DOM_INDEXEDDB_QUOTA_ERR;
-  }
-
   if (NS_WARN_IF(QuotaManager::IsShuttingDown()) || !OperationMayProceed()) {
     IDB_REPORT_INTERNAL_ERR();
     return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
@@ -24378,10 +24344,6 @@ CreateObjectStoreOp::DoDatabaseWork(DatabaseConnection* aConnection)
                  "CreateObjectStoreOp::DoDatabaseWork",
                  js::ProfileEntry::Category::STORAGE);
 
-  if (NS_WARN_IF(IndexedDatabaseManager::InLowDiskSpaceMode())) {
-    return NS_ERROR_DOM_INDEXEDDB_QUOTA_ERR;
-  }
-
 #ifdef DEBUG
   {
     // Make sure that we're not creating an object store with the same name as
@@ -24705,10 +24667,6 @@ RenameObjectStoreOp::DoDatabaseWork(DatabaseConnection* aConnection)
                  "RenameObjectStoreOp::DoDatabaseWork",
                  js::ProfileEntry::Category::STORAGE);
 
-  if (NS_WARN_IF(IndexedDatabaseManager::InLowDiskSpaceMode())) {
-    return NS_ERROR_DOM_INDEXEDDB_QUOTA_ERR;
-  }
-
 #ifdef DEBUG
   {
     // Make sure that we're not renaming an object store with the same name as
@@ -24798,7 +24756,6 @@ CreateIndexOp::InsertDataFromObjectStore(DatabaseConnection* aConnection)
 {
   MOZ_ASSERT(aConnection);
   aConnection->AssertIsOnConnectionThread();
-  MOZ_ASSERT(!IndexedDatabaseManager::InLowDiskSpaceMode());
   MOZ_ASSERT(mMaybeUniqueIndexTable);
 
   PROFILER_LABEL("IndexedDB",
@@ -24849,7 +24806,6 @@ CreateIndexOp::InsertDataFromObjectStoreInternal(
 {
   MOZ_ASSERT(aConnection);
   aConnection->AssertIsOnConnectionThread();
-  MOZ_ASSERT(!IndexedDatabaseManager::InLowDiskSpaceMode());
   MOZ_ASSERT(mMaybeUniqueIndexTable);
 
   DebugOnly<void*> storageConnection = aConnection->GetStorageConnection();
@@ -24926,10 +24882,6 @@ CreateIndexOp::DoDatabaseWork(DatabaseConnection* aConnection)
                  "CreateIndexOp::DoDatabaseWork",
                  js::ProfileEntry::Category::STORAGE);
 
-  if (NS_WARN_IF(IndexedDatabaseManager::InLowDiskSpaceMode())) {
-    return NS_ERROR_DOM_INDEXEDDB_QUOTA_ERR;
-  }
-
 #ifdef DEBUG
   {
     // Make sure that we're not creating an index with the same name and object
@@ -25806,10 +25758,6 @@ RenameIndexOp::DoDatabaseWork(DatabaseConnection* aConnection)
                  "RenameIndexOp::DoDatabaseWork",
                  js::ProfileEntry::Category::STORAGE);
 
-  if (NS_WARN_IF(IndexedDatabaseManager::InLowDiskSpaceMode())) {
-    return NS_ERROR_DOM_INDEXEDDB_QUOTA_ERR;
-  }
-
 #ifdef DEBUG
   {
     // Make sure that we're not renaming an index with the same name as another
@@ -26294,10 +26242,6 @@ ObjectStoreAddOrPutRequestOp::DoDatabaseWork(DatabaseConnection* aConnection)
                  "ObjectStoreAddOrPutRequestOp::DoDatabaseWork",
                  js::ProfileEntry::Category::STORAGE);
 
-  if (NS_WARN_IF(IndexedDatabaseManager::InLowDiskSpaceMode())) {
-    return NS_ERROR_DOM_INDEXEDDB_QUOTA_ERR;
-  }
-
   DatabaseConnection::AutoSavepoint autoSave;
   nsresult rv = autoSave.Start(Transaction());
   if (NS_WARN_IF(NS_FAILED(rv))) {
-- 
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