From 95e2d05e5d6b92a2f6b28e00f36064b7bf6b249a Mon Sep 17 00:00:00 2001
From: Alexandre Julliard <julliard@winehq.org>
Date: Sat, 6 Jun 2020 15:16:38 +0200
Subject: [PATCH] ntdll: Implement NtContinue() in the Unix library.

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
---
 dlls/ntdll/ntdll.spec    |  4 ++--
 dlls/ntdll/thread.c      |  9 +++++++++
 dlls/ntdll/unix/loader.c |  1 +
 dlls/ntdll/unix/thread.c | 12 ++++++++++++
 dlls/ntdll/unixlib.h     |  3 ++-
 5 files changed, 26 insertions(+), 3 deletions(-)

diff --git a/dlls/ntdll/ntdll.spec b/dlls/ntdll/ntdll.spec
index 11fa03b4d1b..766e458621a 100644
--- a/dlls/ntdll/ntdll.spec
+++ b/dlls/ntdll/ntdll.spec
@@ -157,7 +157,7 @@
 @ stdcall NtCompleteConnectPort(ptr)
 # @ stub NtCompressKey
 @ stdcall NtConnectPort(ptr ptr ptr ptr ptr ptr ptr ptr)
-@ stub NtContinue
+@ stdcall NtContinue(ptr long)
 # @ stub NtCreateDebugObject
 @ stdcall NtCreateDirectoryObject(ptr long ptr)
 @ stdcall NtCreateEvent(ptr long ptr long long)
@@ -1145,7 +1145,7 @@
 @ stdcall -private ZwCompleteConnectPort(ptr) NtCompleteConnectPort
 # @ stub ZwCompressKey
 @ stdcall -private ZwConnectPort(ptr ptr ptr ptr ptr ptr ptr ptr) NtConnectPort
-@ stub ZwContinue
+@ stdcall -private ZwContinue(ptr long) NtContinue
 # @ stub ZwCreateDebugObject
 @ stdcall -private ZwCreateDirectoryObject(ptr long ptr) NtCreateDirectoryObject
 @ stdcall -private ZwCreateEvent(ptr long ptr long long) NtCreateEvent
diff --git a/dlls/ntdll/thread.c b/dlls/ntdll/thread.c
index 18664030df5..d045466f6d2 100644
--- a/dlls/ntdll/thread.c
+++ b/dlls/ntdll/thread.c
@@ -602,6 +602,15 @@ NTSTATUS get_thread_context( HANDLE handle, context_t *context, unsigned int fla
 }
 
 
+/***********************************************************************
+ *              NtContinue  (NTDLL.@)
+ */
+NTSTATUS WINAPI NtContinue( CONTEXT *context, BOOLEAN alertable )
+{
+    return unix_funcs->NtContinue( context, alertable );
+}
+
+
 /***********************************************************************
  *              NtSetContextThread  (NTDLL.@)
  *              ZwSetContextThread  (NTDLL.@)
diff --git a/dlls/ntdll/unix/loader.c b/dlls/ntdll/unix/loader.c
index 3116c885d15..618e3d6adb3 100644
--- a/dlls/ntdll/unix/loader.c
+++ b/dlls/ntdll/unix/loader.c
@@ -988,6 +988,7 @@ static struct unix_funcs unix_funcs =
     NtCancelTimer,
     NtClearEvent,
     NtClose,
+    NtContinue,
     NtCreateEvent,
     NtCreateKeyedEvent,
     NtCreateMutant,
diff --git a/dlls/ntdll/unix/thread.c b/dlls/ntdll/unix/thread.c
index 1fc7dc84543..d4b7a51a627 100644
--- a/dlls/ntdll/unix/thread.c
+++ b/dlls/ntdll/unix/thread.c
@@ -470,6 +470,18 @@ NTSTATUS WINAPI NtRaiseException( EXCEPTION_RECORD *rec, CONTEXT *context, BOOL
 }
 
 
+/***********************************************************************
+ *              NtContinue  (NTDLL.@)
+ */
+NTSTATUS WINAPI NtContinue( CONTEXT *context, BOOLEAN alertable )
+{
+    static const LARGE_INTEGER zero_timeout;
+
+    if (alertable) server_wait( NULL, 0, SELECT_INTERRUPTIBLE | SELECT_ALERTABLE, &zero_timeout );
+    return NtSetContextThread( GetCurrentThread(), context );
+}
+
+
 /***********************************************************************
  *              set_thread_context
  */
diff --git a/dlls/ntdll/unixlib.h b/dlls/ntdll/unixlib.h
index 779b91c89b9..017a0a71b3f 100644
--- a/dlls/ntdll/unixlib.h
+++ b/dlls/ntdll/unixlib.h
@@ -28,7 +28,7 @@ struct ldt_copy;
 struct msghdr;
 
 /* increment this when you change the function table */
-#define NTDLL_UNIXLIB_VERSION 31
+#define NTDLL_UNIXLIB_VERSION 32
 
 struct unix_funcs
 {
@@ -39,6 +39,7 @@ struct unix_funcs
     NTSTATUS      (WINAPI *NtCancelTimer)( HANDLE handle, BOOLEAN *state );
     NTSTATUS      (WINAPI *NtClearEvent)( HANDLE handle );
     NTSTATUS      (WINAPI *NtClose)( HANDLE handle );
+    NTSTATUS      (WINAPI *NtContinue)( CONTEXT *context, BOOLEAN alertable );
     NTSTATUS      (WINAPI *NtCreateEvent)( HANDLE *handle, ACCESS_MASK access,
                                            const OBJECT_ATTRIBUTES *attr, EVENT_TYPE type, BOOLEAN state );
     NTSTATUS      (WINAPI *NtCreateKeyedEvent)( HANDLE *handle, ACCESS_MASK access,