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import changes from `dev' branch of rmottola/Arctic-Fox:

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- Bug 1120715 - Part 6: Remove the dom.requestcache.enabled pref; r=bkelly (800c996a96)
- Bug 1143222 - Put the DOM Cache tests in sequential mode again until we fix the rest of the intermittent failures; a=RyanVM (2ebdd659a1)
- Bug 1255636 - Give a better error message when the Request constructor fails because of a cross-origin referrer URL; r=bkelly (d81a21c0bb)
- Bug 1265056 - don't needlessly construct nsAutoCString temporaries in dom/; r=baku (3be49ca3fc)
- Bug 1243849 - Restore support for accessing the Cache API from app:// URLs and also for storing requests/responses with app:// URLs within it; r=bkelly (eb56fa564c)
- Bug 1263235, part 1 - Move PBrowser::AsyncMessage's data argument last. r=smaug (6852b87c22)
- Bug 1263235, part 2 - Make PContent::AsyncMessage and PContentBridge::AsyncMessage's data argument last. r=smaug (9e8cd94461)
- Bug 1263028 - send HTTP data to the content process in smaller chunks, r=michal (c0da548157)
- Bug 1263235, part 3 - Move PHttpChannel::OnTransportAndData's data argument last. r=mayhemer (e1bf4f430f)
- Bug 1263235, part 4 - Make PBrowserStream::Write's data argument last. r=jimm (8bcec4d541)
- Bug 1260876 - Remove process switch code for signed package code (added by Bug 1186290). r=valentin. (cef270b44c)
- Bug 1234575 - Empty fragment is ignored in URI of location header r=mcmanus (db68f102d8)
- Bug 1262506 - Unused variable in a runnable in BackgroundParentImpl, r=ehsan (9288f0a111)
- bug 1239166 - platform work to support Microsoft Family Safety functionality r=froydnj,mgoodwin,mhowell,rbarnes,vladan (adc357f3b3)
- Bug 842818 - Make Crypto::GetRandomValues() work off the main thread r=baku,keeler,mt (533f8942c4)
- Bug 1247089 - Add a mode to ReportToConsoleNonLocalized that ignores the calling location. r=bkelly (4be23e0869)
- Bug 1258883 - Add a way to replace the entire Push service in tests. r=wchen (06a5f27016)
- Bug 1243856 - Remove alarms from the Push H2 backend. r=dragana (60d146dc73)
- Bug 1246066 - Clear PushService timeout tasks on uninitialization. r=itcambridge (461276a972)
- Bug 1214338 - Implement Android GCM-based PushService protocol. r=rnewman r=kitcambridge (f2bb78994a)
- Bug 1257821 - Support the new aesgcm content encoding scheme. r=mt (1da653c14a)
- Bug 1243856 - Remove alarms from the Push WebSocket backend. r=dragana (43f74c4999)
- Bug 1258145 - Remove waitForPromise from the xpcshell tests. r=wchen (cdd1aff2f6)
- Bug 1253831 - Don't check actual intervals in the Push backoff test. r=wchen (859fa0bba3)
- Bug 1246341 - Include status codes in "ack" and "unregister" requests. r=dragana (a62d0daf9b)
- Bug 1246341 - Add a test for push event error reporting. r=dragana (013bc814e4)
- Bug 1247089 - Log Web Push decryption errors. r=bkelly (ffc093dc2f)
- Bug 1258221 - patch 2 - Port FileSystem API and DeviceStorage API to PBackground, r=smaug (c1c0e08bc0)
- Bug 1258221 - patch 3 - Rename FileSystemTaskBase to FileSystemTaskChildBase, r=smaug (867a0e65fd)
- Bug 1251032 - Don't return layersId or textureFactoryIdentifier as outparams in RenderFrameParent constructor. r=kanru (198ddff7fc)
- Bug 1251032 - Send RenderFrame info down to child in CreateWindow message. r=kanru (87e9001088)
- Bug 1251032 - Make it possible to assign a frameloader to RenderFrameParent after construction. r=kanru (96483d1282)
- Bug 1254865 - Send disableglobalhistory state down to TabChild after construction asynchronously. r=smaug (3949285b62)
- Bug 1238707 Release the window immediately in TabParent::Destroy() to avoid leaks. r=smaug (fc612485d7)
- Bug 1256589 part.1 Move the implementation of StopPropagation() from dom::Event to WidgetEvent r=smaug (181721b64c)
- Bug 1256589 part.2 Move the implementation of StopImmediatePropagation() from dom::Event to WidgetEvent r=smaug (554a0dc5b5)
- Bug 1203059 part.1 nsXBLWincowKeyHandler mark WidgetEvent::mFlags if it's reserved by chrome before the event is dispatched into the content r=smaug (9162dd68cb)
- Bug 1203059 part.2 When an event is reserved by chrome, it should be fired only on chrome r=smaug (35f082ca5f)
- Bug 1203059 part.3 Installing and removing keyboard event listeners of nsXBLWindowKeyHandler should be done by the class itself r=smaug (1e06c2d0bc)
- Bug 1203059 part.4 Update test_keycodes.xul for the new behavior r=smaug (3014d21c75)
- Bug 1256589 part.3 Move the implementation of StopCrossProcessForwarding() from dom::Event to WidgetEvent r=smaug (96db915b51)
- Bug 1257180 - patch 1 - Directory clonable to workers, r=smaug (5634acb08d)
- Bug 1257180 - patch 2 - Directory can be sent via postMessage(), r=smaug (82ada39ae3)
- Bug 1263311: Part 3 - s/nsCancelableRunnable/CancelableRunnable/g. r=froydnj (79d0a6c81f)
- Bug 1253198: add WebRtcIce prefix to all ICE unit tests. r=bwc (9c18f5fd56)
- Bug 1244926: added TCP socket filter to only allow outgoing STUN. r=jesup (75debfdc84)
- Bug 1257405 - Increase auth secret length to 16 octets. r=mt (b1e000c331)
- Bug 1257401 - Remove the worker descriptor for PushSubscription. r=khuey (5791fb69ef)
- Bug 1257401 - Remove the worker descriptor for PushManager. r=khuey (e2c75903a9)
- Bug 1257821 - Remove the authenticated aesgcm128 content coding scheme. r=mt,marco (64a2917910)
- Bug 1256488 - Add a Base64 URL-decoder for C++ and chrome JS callers. r=mt,baku (0bbb250298)
- Bug 1247685 - Validate and store app server keys in the Push service. r=mt (c3c026ccb1)
- Bug 1252650 - Support loading PushService immediately on Android; r=kitcambridge (d59a37fec4)
- Bug 1258595 - Shut down the Push service if errors occur at startup. r=wchen (eef1805652)
- Bug 1258595 - Wait for the Push service to shut down between tests. r=wchen (c30cf92ce6)
- Bug 1262618 - Fix an unchained promise and a couple of non-promise returns in the push service. r=wchen (8eadab5706)
- Bug 1263747 - Log error messages when stringifying errors. r=bgrins (edffd0074e)
- Bug 1265705 - Silence startup JavaScript strict warning in resource://gre/modules/PushService.jsm. r=kitcambridge (e7e210fb61)
- Bug 1264062 - Don't bother checking which accelerated layer types are available if they're all disabled by pref r=milan (0d3208ad59)
- Bug 1263346. Remove wrong Ivy Bridge device id. r=Bas (7e39e7f370)
- fix misspatch (a67a111b2c)
- Bug 1251334 - Create a disposable pref to force-disable e10s in an emergency. r=jimm (ef892d4474)
- Bug 1254774 - error: member access into incomplete type 'nsIUUIDGenerator' after bug 1237847. r=aklotz (c1f334609f)
- Bug 1257242 - Split the ::BrowserTabsRemoteAutostart() function into two parts, to allow for the blocking policies to be checked independently from the prefs checks. r=jimm (1babda578f)
- Bug 1260190 - Disable e10s for accessibility users on OS X. r=jimm (219e5b1f19)
- Bug 1237769 - Disable e10s on Windows XP if layers acceleration is requested r=milan (60f2434e9f)
- Bug 1232911 - [3.2] Block VPX support in ADM on unsupported devices. r=snorp (6924aa073a)
- Bug 1263249 - Bubble up unique failureId in GetFeatureStatus. r=mconley,milan (cd56eeab3c)
- Bug 1219296 - Split fields not needed for repaints out from FrameMetrics. r=kats (9003ca634a)
- Bug 1219296 - Factor out scroll snap information into a form that's usable by the compositor. r=kats (23d3e619a1)
- Bug 1219296 - Make ScrollMetadata::sNullMetadata a StaticAutoPtr so that ScrollMetadata can admit nsTArray members. r=kats (1729ff7d93)
- Bug 1257641 - Replace the mUpdateScrollOffset bool with an enum, needed in the next patch. r=botond (f9d546f8e8)
- Bug 1257641 - Use empty transactions to carry scroll offset updates to APZ that don't require a repaint. r=mattwoodrow,mstange,botond (ba4a8a8c29)
- Bug 1246290 - Add a bit to FrameMetrics to indicate if APZ-scrolling should be disabled on that APZC. r=botond (af2067137f)
- Bug 1256589 part.4 Move the implementation of PreventDefault() and add PreventDefaultBeforeDispatch() from dom::Event to WidgetEvent r=smaug (e7828f2d8f)
- Bug 1256589 part.5 Add DefaultPrevented() and DefaultPreventedByContent() to WidgetEvent r=smaug (e65cdd9127)
- Bug 1249915 - Fix missing MOZ_COUNT_CTOR and some misc cleanup. r=karlt (d2f26cf971)
- Bug 1154183 part.1 Move shortcut/access key candidate list creators from nsContentUtils to WidgetKeyboardEvent r=smaug (40b0b11a5a)
- Bug 1154183 part.2 eKeyDown event should have charCode value of following keypress event r=smaug (28c1443ba3)
- Bug 1154183 part.3 Clean up some variable names in nsXBLWindowKeyHandler::WalkHandlersAndExecute() r=smaug (81e25023d8)
- Bug 1154183 part.4 Implement nsXBLWindowKeyHandler::GetElementForHandler() r=smaug (b5605d5c83)
- Bug 1154183 part.5 Make nsXBLWindowKeyHandler::GetElementForHandler() use early return style r=smaug (017467204f)
- Bug 1154183 part.6 Add nsXBLWindowKeyHandler::IsExecuteableElement() r=smaug (1fda349113)
- Bug 1154183 part.7 Don't dispatch preceding keydown events of reserved keypress events on content in the default event group r=smaug (15b9e8c9d2)
- Bug 1256589 part.6 Move the implementation of IsTrusted() from dom::Event to WidgetEvent r=smaug (ec79520fd3)
- Bug 1253044. Fix fall through of observer topics when other conditions aren't met in PresShell::Observe. r=dholbert (dcc36884aa)
- Bug 1157546 - Replace the image visibility API with a more general API that tracks visibility for any kind of frame. r=mstange (d6ea061614)
- Bug 1219296 - Factor out the algorithm that computes a scroll snap destination into a reusable form. r=kats (296cbe9e49)
- Bug 1254275 - Inspect the event queue to find out whether momentum events are following. r=kats (b2bb8a26b9)
- Bug 1219296 - Scroll snap directly in APZ instead of going through the main thread. r=kats (0a30b550f9)
- Bug 1219296 - Fix an include-what-you-use error. r=kats (4a128ae98e)
- Bug 1260588 - C++ APZ should only allow handoff to ancestor APZC r=botond (9856ab5160)
- Bug 1257269 - Panning up in a scrollable element should not hide the toolbar r=kats,jchen (1036ffc9e3)
- Bug 1219296 - Ship scroll snap information to the compositor. r=kats (0e920f02a1)
- Bug 1219296 - Move the layout.css.scroll-snap.proximity-threshold pref to gfxPrefs, so it can be queried on the compositor thread. r=kats (2e3e1ec16e)
- Bug 1219296 - Remove StartSmoothScroll()'s argument, which is no longer used. r=kats (12efcd9c79)
- Bug 1219296 - Light refactoring to how a smooth scroll is launched inside APZC. r=kats (ba6a9ed9a2)
- Bug 1219296 - Followup to fix stale code comments. r=me and DONTBUILD (fec5f65988)
- Bug 1257641 - Remove now-unused code for the lightweight scroll offset update message. r=botond (d449e45d6d)
- Bug 1236680 Part 1: Add new WinUtils function to Resolve moved Users folder. r=jimm (51d12f856c)
- Bug 1236680 Part 2: Resolve GMP path for moved Users folder. r=cpearce (e568217b78)
- Bug 1236680 Part 3: Add #ifs to include to fix bustage. r=me (40c38680ea)
- Bug 1240315: Add startup crash report annotation for AppInit_DLLs; r=jimm (aa2040baae)
- Bug 1253446 - patch 2 - Return the proper scaling factor when querying the primary screen on Windows. r=emk (9765e4f7ca)
- Bug 1251624 - patch 1 - The desktop to device scaling in WinUtils::MonitorFromRect should not depend on custom CSS pixel scaling (devPixelsPerPx setting). r=emk (788b4ad5db)
- Bug 1251624 - patch 2 - Check for scaling override (devPixelsPerPx setting) in nsScreenWin::GetDefaultCSSScaleFactor, for proper window positioning when a custom scale factor is used. r=emk (2843a3fe70)
- Bug 1222149 - delete unused fields from AsyncEncodeAndWriteIcon; r=roc clang-cl says these are unused, so let's delete them. (62cf7f8f47)
- Bug 1204809 - Notify (don't hang) third party windows when adding shortcut icon. r=jmathies (7e4058a0f8)
- Bug 1253566 - Deal with char16_t/wchar_t mismatch. r=aklotz (1c6cf160c7)
- Bug 1211941 - Let nsICacheStorage.openTruncate impl return an HTTP cache entry write handle, r=michal (6a5796fb93)
- Bug 1050613 - Make sure force-valid for HTTP cache entries is removed when entries are removed, r=michal (9efb91eefc)
- Bug 1248389 - Cache index causing CPU loops, r=honzab (175b5b27f2)
- Bug 1066970 - Show 'calculating' during HTTP cache cleaning process in preferences window, r=michal (db722000d8)
- Bug 1248958 - CacheIndex mRWBuf ownership too fragile, read-after-free, r=honzab (66ee3d1d0d)
- Bug 1248003 - Purge from HTTP cache memory pool only in reasonable intervals, r=michal (1cd6cb5983)
- Bug 1068674 - Don't turn off e10s if hardware acceleration is disabled. r=jimm (dfbef44278)
This commit is contained in:
roytam1
2024-04-18 11:14:32 +08:00
parent 52a27516d8
commit d457251529
392 changed files with 11612 additions and 6523 deletions
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dom/filesystem/FileSystemTaskBase.h
+194 -134
View File
@@ -10,111 +10,118 @@
#include "mozilla/ErrorResult.h"
#include "mozilla/dom/FileSystemRequestParent.h"
#include "mozilla/dom/PFileSystemRequestChild.h"
#include "nsThreadUtils.h"
namespace mozilla {
namespace dom {
class BlobImpl;
class BlobParent;
class FileSystemBase;
class FileSystemParams;
class PBlobParent;
/*
* The base class to implement a Task class.
* The task is used to handle the OOP (out of process) operations.
* The file system operations can only be performed in the parent process. When
* performing such a parent-process-only operation, a task will delivered the
* operation to the parent process if needed.
* The file system operations can only be performed in the parent process. In
* order to avoid duplicated code, we used PBackground for child-parent and
* parent-parent communications.
*
* The following diagram illustrates the how a API call from the content page
* starts a task and gets call back results.
*
* The left block is the call sequence inside the child process, while the
* right block is the call sequence inside the parent process.
* The left block is the call sequence inside any process loading content, while
* the right block is the call sequence only inside the parent process.
*
* There are two types of API call. One is from the content page of the child
* process and we mark the steps as (1) to (8). The other is from the content
* page of the parent process and we mark the steps as (1') to (4').
* Page
* |
* | (1)
* ______|_______________________ | __________________________________
* | | | | | |
* | | | | | |
* | V | IPC | PBackground thread on |
* | [new FileSystemTaskChildBase()] | | | the parent process |
* | | | | | |
* | | (2) | | | |
* | V | | | |
* | [FileSystemPermissionRequest------------------\ |
* | ::RequestForTask()] <------------------------/ |
* | | | | | |
* | | (3) | | |
* | V | (4) | |
* | [GetRequestParams]------------------->[new FileSystemTaskParentBase()] |
* | | | | |
* | | | | | (5) _____________ |
* | | | | | | | |
* | | | | | | I/O Thread | |
* | | | | | | | |
* | | | | ---------> [IOWork] | |
* | | IPC | | | | |
* | | | | | | (6) | |
* | | | | -------------- | |
* | | | | | |_____________| |
* | | | | | |
* | | | | V |
* | | | | [HandleResult] |
* | | | | | |
* | | | | (7) |
* | | (8) | V |
* | [SetRequestResult]<---------------------[GetRequestResult] |
* | | | | |
* | | (9) | | | |
* | V | | | |
* |[HandlerCallback] | IPC | |
* |_______|_________________________| | |_________________________________|
* | |
* V
* Page
*
* Page Page
* | |
* | (1) | (1')
* ______|________________ | _____________________|_____________
* | | | | | | |
* | | Task in | | | Task in | |
* | | Child Process | | | Parent Process | |
* | V | IPC | V |
* [new FileSystemTaskBase()] | | [new FileSystemTaskBase()] |
* | | | | | | |
* | | (2) | | | (2') |
* | V | (3) | | |
* | [GetRequestParams]------------->[new FileSystemTaskBase(...)] |
* | | | | | |
* | | | | | (4) | |
* | | | | | V |
* | | | | -----------> [Work] |
* | | IPC | | |
* | | | | (5) | (3') |
* | | | | V |
* | | | | --------[HandleResult] |
* | | | | | | |
* | | | | (6) | |
* | | (7) | V | |
* | [SetRequestResult]<-------------[GetRequestResult] | |
* | | | | | (4') |
* | | (8) | | | | |
* | V | | | V |
* |[HandlerCallback] | IPC | [HandlerCallback] |
* |_______|_______________| | |_________________________|_________|
* | | |
* V V
* Page Page
*
* 1. From child process page
* Child:
* 1. From the process that is handling the request
* Child/Parent (it can be in any process):
* (1) Call FileSystem API from content page with JS. Create a task and run.
* The base constructor [FileSystemTaskBase()] of the task should be called.
* (2) Forward the task to the parent process through the IPC and call
* The base constructor [FileSystemTaskChildBase()] of the task should be
* called.
* (2) The FileSystemTaskChildBase object is given to
* [FileSystemPermissionRequest::RequestForTask()] that will perform a
* permission check step if needed (See ePermissionCheckType enum). The real
* operation is done on the parent process but it's hidden by
* [nsContentPermissionUtils::AskPermission()]. If the permission check is not
* needed or if the page has the right permission, the
* FileSystemPermissionRequest will start the task (only once PBackground
* actor is fully initialized).
* (3) Forward the task to the parent process through the IPC and call
* [GetRequestParams] to prepare the parameters of the IPC.
* Parent:
* (3) The parent process receives IPC and handle it in
* FileystemRequestParent.
* Get the IPC parameters and create a task to run the IPC task. The base
* constructor [FileSystemTaskBase(aParam, aParent)] of the task should be
* called to set the task as an IPC task.
* (4) The task operation will be performed in the member function of [Work].
* A worker thread will be created to run that function. If error occurs
* (4) The parent process receives IPC and handle it in
* FileystemRequestParent. Get the IPC parameters and create a task to run the
* IPC task. The base constructor [FileSystemTaskParentBase(aParam, aParent)]
* For security reasons, we do an additional permission check if needed. In
* the check fails, the child process will be killed.
* of the task should be called to set the task as an IPC task.
* (5) The task operation will be performed in the member function of [IOWork].
* A I/O thread will be created to run that function. If error occurs
* during the operation, call [SetError] to record the error and then abort.
* (5) After finishing the task operation, call [HandleResult] to send the
* (6) After finishing the task operation, call [HandleResult] to send the
* result back to the child process though the IPC.
* (6) Call [GetRequestResult] request result to prepare the parameters of the
* (7) Call [GetRequestResult] request result to prepare the parameters of the
* IPC. Because the formats of the error result for different task are the
* same, FileSystemTaskBase can handle the error message without interfering.
* same, FileSystemTaskChildBase can handle the error message without
* interfering.
* Each task only needs to implement its specific success result preparation
* function -[GetSuccessRequestResult].
* Child:
* (7) The child process receives IPC and calls [SetRequestResult] to get the
* Child/Parent:
* (8) The process receives IPC and calls [SetRequestResult] to get the
* task result. Each task needs to implement its specific success result
* parsing function [SetSuccessRequestResult] to get the success result.
* (8) Call [HandlerCallback] to send the task result to the content page.
* 2. From parent process page
* We don't need to send the task parameters and result to other process. So
* there are less steps, but their functions are the same. The correspondence
* between the two types of steps is:
* (1') = (1),
* (2') = (4),
* (3') = (5),
* (4') = (8).
* (9) Call [HandlerCallback] to send the task result to the content page.
*/
class FileSystemTaskBase
: public nsRunnable
, public PFileSystemRequestChild
class FileSystemTaskChildBase : public PFileSystemRequestChild
{
public:
NS_INLINE_DECL_REFCOUNTING(FileSystemTaskChildBase)
/*
* Start the task. If the task is running the child process, it will be
* forwarded to parent process by IPC, or else, creates a worker thread to
* do the task work.
* Start the task. It will dispatch all the information to the parent process,
* PBackground thread. This method must be called from the owning thread.
*/
void
Start();
@@ -135,104 +142,157 @@ public:
virtual void
GetPermissionAccessType(nsCString& aAccess) const = 0;
NS_DECL_NSIRUNNABLE
protected:
/*
* To create a task to handle the page content request.
*/
explicit FileSystemTaskBase(FileSystemBase* aFileSystem);
/*
* To create a parent process task delivered from the child process through
* IPC.
*/
FileSystemTaskBase(FileSystemBase* aFileSystem,
const FileSystemParams& aParam,
FileSystemRequestParent* aParent);
virtual
~FileSystemTaskBase();
/*
* The function to perform task operation. It will be run on the worker
* thread of the parent process.
* Overrides this function to define the task operation for individual task.
*/
virtual nsresult
Work() = 0;
/*
* After the task is completed, this function will be called to pass the task
* result to the content page.
* result to the content page. This method is called in the owning thread.
* Override this function to handle the call back to the content page.
*/
virtual void
HandlerCallback() = 0;
bool
HasError() const { return NS_FAILED(mErrorValue); }
protected:
/*
* To create a task to handle the page content request.
*/
explicit FileSystemTaskChildBase(FileSystemBase* aFileSystem);
virtual
~FileSystemTaskChildBase();
/*
* Wrap the task parameter to FileSystemParams for sending it through IPC.
* It will be called when we need to forward a task from the child process to
* the prarent process.
* the parent process. This method runs in the owning thread.
* @param filesystem The string representation of the file system.
*/
virtual FileSystemParams
GetRequestParams(const nsString& aSerializedDOMPath,
ErrorResult& aRv) const = 0;
/*
* Unwrap the IPC message to get the task success result.
* It will be called when the task is completed successfully and an IPC
* message is received in the child process and we want to get the task
* success result. This method runs in the owning thread.
*/
virtual void
SetSuccessRequestResult(const FileSystemResponseValue& aValue,
ErrorResult& aRv) = 0;
// Overrides PFileSystemRequestChild
virtual bool
Recv__delete__(const FileSystemResponseValue& value) override;
nsresult mErrorValue;
RefPtr<FileSystemBase> mFileSystem;
private:
/*
* Unwrap the IPC message to get the task result.
* It will be called when the task is completed and an IPC message is received
* in the content process and we want to get the task result. This runs on the
* owning thread.
*/
void
SetRequestResult(const FileSystemResponseValue& aValue);
};
// This class is the 'alter ego' of FileSystemTaskChildBase in the PBackground
// world.
class FileSystemTaskParentBase : public nsRunnable
{
public:
/*
* Start the task. This must be called from the PBackground thread only.
*/
void
Start();
/*
* The error codes are defined in xpcom/base/ErrorList.h and their
* corresponding error name and message are defined in dom/base/domerr.msg.
*/
void
SetError(const nsresult& aErrorCode);
/*
* The function to perform task operation. It will be run on the I/O
* thread of the parent process.
* Overrides this function to define the task operation for individual task.
*/
virtual nsresult
IOWork() = 0;
/*
* Wrap the task success result to FileSystemResponseValue for sending it
* through IPC.
* through IPC. This method runs in the PBackground thread.
* It will be called when the task is completed successfully and we need to
* send the task success result back to the child process.
*/
virtual FileSystemResponseValue
GetSuccessRequestResult(ErrorResult& aRv) const = 0;
/*
* Unwrap the IPC message to get the task success result.
* It will be called when the task is completed successfully and an IPC
* message is received in the child process and we want to get the task
* success result.
*/
virtual void
SetSuccessRequestResult(const FileSystemResponseValue& aValue,
ErrorResult& aRv) = 0;
bool
HasError() const { return mErrorValue != NS_OK; }
// Overrides PFileSystemRequestChild
virtual bool
Recv__delete__(const FileSystemResponseValue& value) override;
nsresult mErrorValue;
RefPtr<FileSystemBase> mFileSystem;
RefPtr<FileSystemRequestParent> mRequestParent;
private:
/*
* After finishing the task operation, handle the task result.
* If it is an IPC task, send back the IPC result. Or else, send the result
* to the content page.
* If it is an IPC task, send back the IPC result. It runs on the PBackground
* thread.
*/
void
HandleResult();
// If this task must do something on the main-thread before IOWork(), it must
// overwrite this method. Otherwise it returns true if the FileSystem must be
// initialized on the main-thread. It's called from the Background thread.
virtual bool
NeedToGoToMainThread() const;
// This method is called only if NeedToGoToMainThread() returns true.
// Of course, it runs on the main-thread.
virtual nsresult
MainThreadWork();
/*
* Get the type of permission access required to perform this task.
*/
virtual void
GetPermissionAccessType(nsCString& aAccess) const = 0;
bool
HasError() const { return NS_FAILED(mErrorValue); }
NS_IMETHOD
Run() override;
private:
/*
* Wrap the task result to FileSystemResponseValue for sending it through IPC.
* It will be called when the task is completed and we need to
* send the task result back to the child process.
* send the task result back to the content. This runs on the PBackground
* thread.
*/
FileSystemResponseValue
GetRequestResult() const;
protected:
/*
* Unwrap the IPC message to get the task result.
* It will be called when the task is completed and an IPC message is received
* in the child process and we want to get the task result.
* To create a parent process task delivered from the child process through
* IPC.
*/
void
SetRequestResult(const FileSystemResponseValue& aValue);
FileSystemTaskParentBase(FileSystemBase* aFileSystem,
const FileSystemParams& aParam,
FileSystemRequestParent* aParent);
virtual
~FileSystemTaskParentBase();
nsresult mErrorValue;
RefPtr<FileSystemBase> mFileSystem;
RefPtr<FileSystemRequestParent> mRequestParent;
nsCOMPtr<nsIEventTarget> mBackgroundEventTarget;
};
} // namespace dom