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server: Don't wait for client thread to enter suspended state in set_thread_context. 

Signed-off-by: Jacek Caban <jacek@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Jacek Caban 2020-04-22 14:33:09 +02:00 committed by Alexandre Julliard
parent 2960a973d1
commit aa0c4bb5e7
2 changed files with 4 additions and 44 deletions
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26
dlls/ntdll/thread.c
View File

@ -787,42 +787,16 @@ TEB_ACTIVE_FRAME * WINAPI RtlGetFrame(void)
NTSTATUS set_thread_context( HANDLE handle, const context_t *context, BOOL *self )
{
NTSTATUS ret;
DWORD dummy, i;
SERVER_START_REQ( set_thread_context )
{
req->handle = wine_server_obj_handle( handle );
req->suspend = 1;
wine_server_add_data( req, context, sizeof(*context) );
ret = wine_server_call( req );
*self = reply->self;
}
SERVER_END_REQ;
if (ret == STATUS_PENDING)
{
for (i = 0; i < 100; i++)
{
SERVER_START_REQ( set_thread_context )
{
req->handle = wine_server_obj_handle( handle );
req->suspend = 0;
wine_server_add_data( req, context, sizeof(*context) );
ret = wine_server_call( req );
}
SERVER_END_REQ;
if (ret == STATUS_PENDING)
{
LARGE_INTEGER timeout;
timeout.QuadPart = -10000;
NtDelayExecution( FALSE, &timeout );
}
else break;
}
NtResumeThread( handle, &dummy );
if (ret == STATUS_PENDING) ret = STATUS_ACCESS_DENIED;
}
return ret;
}

22
server/thread.c
View File

@ -1859,35 +1859,21 @@ DECL_HANDLER(set_thread_context)
if (!(thread = get_thread_from_handle( req->handle, THREAD_SET_CONTEXT ))) return;
reply->self = (thread == current);
if (thread != current && (!thread->context || thread->context->status == STATUS_PENDING))
{
/* thread is not suspended, retry (if it's still running) */
if (thread->state == RUNNING)
{
set_error( STATUS_PENDING );
if (req->suspend)
{
release_object( thread );
/* make sure we have suspend access */
if (!(thread = get_thread_from_handle( req->handle, THREAD_SUSPEND_RESUME ))) return;
suspend_thread( thread );
}
}
else set_error( STATUS_UNSUCCESSFUL );
}
else if (context->cpu == thread->process->cpu)
if (thread->state == TERMINATED) set_error( STATUS_UNSUCCESSFUL );
else if (context->cpu != thread->process->cpu) set_error( STATUS_INVALID_PARAMETER );
else
{
unsigned int system_flags = get_context_system_regs(context->cpu) & context->flags;
unsigned int client_flags = context->flags & ~system_flags;
if (system_flags) set_thread_context( thread, context, system_flags );
if (thread != current && !get_error()) stop_thread( thread );
if (thread->context && !get_error())
{
copy_context( &thread->context->regs, context, context->flags );
thread->context->regs.flags |= client_flags;
}
}
else set_error( STATUS_INVALID_PARAMETER );
release_object( thread );
}