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Merge pull request #2761 from yuriks/session-references 

Kernel: Ensure objects are kept alive during ClientSession disconnection
This commit is contained in:
Yuri Kunde Schlesner 2017-06-08 11:59:38 -07:00 committed by GitHub
parent 8c22334f96 838faf147e
commit 3146e95585
3 changed files with 15 additions and 9 deletions
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1
src/citra_qt/debugger/wait_tree.h
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@ -18,7 +18,6 @@ class WaitObject;
class Event; class Event;
class Mutex; class Mutex;
class Semaphore; class Semaphore;
class Session;
class Thread; class Thread;
class Timer; class Timer;
} }

21
src/core/hle/kernel/client_session.cpp
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@ -8,6 +8,7 @@
#include "core/hle/kernel/errors.h" #include "core/hle/kernel/errors.h"
#include "core/hle/kernel/hle_ipc.h" #include "core/hle/kernel/hle_ipc.h"
#include "core/hle/kernel/server_session.h" #include "core/hle/kernel/server_session.h"
#include "core/hle/kernel/session.h"
namespace Kernel { namespace Kernel {
@ -16,9 +17,13 @@ ClientSession::~ClientSession() {
// This destructor will be called automatically when the last ClientSession handle is closed by // This destructor will be called automatically when the last ClientSession handle is closed by
// the emulated application. // the emulated application.
if (parent->server) { // Local references to ServerSession and SessionRequestHandler are necessary to guarantee they
if (parent->server->hle_handler) // will be kept alive until after ClientDisconnected() returns.
parent->server->hle_handler->ClientDisconnected(parent->server); SharedPtr<ServerSession> server = parent->server;
if (server) {
std::shared_ptr<SessionRequestHandler> hle_handler = server->hle_handler;
if (hle_handler)
hle_handler->ClientDisconnected(server);
// TODO(Subv): Force a wake up of all the ServerSession's waiting threads and set // TODO(Subv): Force a wake up of all the ServerSession's waiting threads and set
// their WaitSynchronization result to 0xC920181A. // their WaitSynchronization result to 0xC920181A.
@ -28,11 +33,13 @@ ClientSession::~ClientSession() {
} }
ResultCode ClientSession::SendSyncRequest() { ResultCode ClientSession::SendSyncRequest() {
// Signal the server session that new data is available // Keep ServerSession alive until we're done working with it.
if (parent->server) SharedPtr<ServerSession> server = parent->server;
return parent->server->HandleSyncRequest(); if (server == nullptr)
return ERR_SESSION_CLOSED_BY_REMOTE;
return ERR_SESSION_CLOSED_BY_REMOTE; // Signal the server session that new data is available
return server->HandleSyncRequest();
} }
} // namespace } // namespace

2
src/core/hle/kernel/server_session.h
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@ -9,7 +9,6 @@
#include "common/assert.h" #include "common/assert.h"
#include "common/common_types.h" #include "common/common_types.h"
#include "core/hle/kernel/kernel.h" #include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/session.h"
#include "core/hle/kernel/wait_object.h" #include "core/hle/kernel/wait_object.h"
#include "core/hle/result.h" #include "core/hle/result.h"
#include "core/memory.h" #include "core/memory.h"
@ -19,6 +18,7 @@ namespace Kernel {
class ClientSession; class ClientSession;
class ClientPort; class ClientPort;
class ServerSession; class ServerSession;
class Session;
class SessionRequestHandler; class SessionRequestHandler;
class Thread; class Thread;