1 files changed, 141 insertions, 0 deletions
diff --git a/samples/slept/dslept.cpp b/samples/slept/dslept.cpp
new file mode 100644
index 0000000..3929820
--- /dev/null
+++ b/samples/slept/dslept.cpp
@@ -0,0 +1,141 @@
+//////////////////////////////////////////////////////////////////////////////
+//
+//  Detour Test Program (dslept.cpp of dslept.dll)
+//
+//  Microsoft Research Detours Package
+//
+//  Copyright (c) Microsoft Corporation.  All rights reserved.
+//
+//  An example dynamically detouring a function.
+//
+#include <stdio.h>
+#include <windows.h>
+#include "detours.h"
+#include "slept.h"
+
+#include "verify.cpp"
+
+LONG dwSlept = 0;
+
+static DWORD (WINAPI * TrueSleepEx)(DWORD dwMilliseconds, BOOL bAlertable) = NULL;
+static int (WINAPI * TrueEntryPoint)(VOID) = NULL;
+static int (WINAPI * RawEntryPoint)(VOID) = NULL;
+
+DWORD WINAPI UntimedSleepEx(DWORD dwMilliseconds, BOOL bAlertable)
+{
+    if (TrueSleepEx != NULL) {
+        return TrueSleepEx(dwMilliseconds, bAlertable);
+    }
+    return 0;
+}
+
+DWORD WINAPI TimedSleepEx(DWORD dwMilliseconds, BOOL bAlertable)
+{
+    DWORD dwBeg = GetTickCount();
+    DWORD ret = TrueSleepEx(dwMilliseconds, bAlertable);
+    DWORD dwEnd = GetTickCount();
+
+    InterlockedExchangeAdd(&dwSlept, dwEnd - dwBeg);
+    return ret;
+}
+
+DWORD WINAPI GetSleptTicks(VOID)
+{
+    return dwSlept;
+}
+
+int WINAPI TimedEntryPoint(VOID)
+{
+    // We couldn't call LoadLibrary in DllMain,
+    // so we detour SleepEx here...
+    LONG error;
+
+    TrueSleepEx = (DWORD (WINAPI *)(DWORD, BOOL))
+        DetourFindFunction("kernel32.dll", "SleepEx");
+
+    DetourTransactionBegin();
+    DetourUpdateThread(GetCurrentThread());
+    DetourAttach(&(PVOID&)TrueSleepEx, TimedSleepEx);
+    error = DetourTransactionCommit();
+
+    if (error == NO_ERROR) {
+        printf("dslept" DETOURS_STRINGIFY(DETOURS_BITS) ".dll: "
+               " Detoured SleepEx().\n");
+
+    }
+    else {
+        printf("dslept" DETOURS_STRINGIFY(DETOURS_BITS) ".dll: "
+               " Error detouring SleepEx(): %ld\n", error);
+    }
+
+    Verify("SleepEx", (PVOID)SleepEx);
+    printf("\n");
+    fflush(stdout);
+
+    printf("dslept" DETOURS_STRINGIFY(DETOURS_BITS) ".dll: "
+           " Calling EntryPoint\n");
+    fflush(stdout);
+
+    return TrueEntryPoint();
+}
+
+BOOL WINAPI DllMain(HINSTANCE hinst, DWORD dwReason, LPVOID reserved)
+{
+    LONG error;
+    (void)hinst;
+    (void)reserved;
+
+    if (DetourIsHelperProcess()) {
+        return TRUE;
+    }
+
+    if (dwReason == DLL_PROCESS_ATTACH) {
+        DetourRestoreAfterWith();
+
+        printf("dslept" DETOURS_STRINGIFY(DETOURS_BITS) ".dll: "
+               " Starting.\n");
+        Verify("SleepEx", (PVOID)SleepEx);
+        printf("\n");
+        fflush(stdout);
+
+        // NB: DllMain can't call LoadLibrary, so we hook the app entry point.
+        TrueEntryPoint = (int (WINAPI *)(VOID))DetourGetEntryPoint(NULL);
+        RawEntryPoint = TrueEntryPoint;
+
+        Verify("EntryPoint", RawEntryPoint);
+
+        DetourTransactionBegin();
+        DetourUpdateThread(GetCurrentThread());
+        DetourAttach(&(PVOID&)TrueEntryPoint, TimedEntryPoint);
+        error = DetourTransactionCommit();
+
+        Verify("EntryPoint after attach", RawEntryPoint);
+        Verify("EntryPoint trampoline", TrueEntryPoint);
+
+        if (error == NO_ERROR) {
+            printf("dslept" DETOURS_STRINGIFY(DETOURS_BITS) ".dll: "
+                   " Detoured EntryPoint().\n");
+        }
+        else {
+            printf("dslept" DETOURS_STRINGIFY(DETOURS_BITS) ".dll: "
+                   " Error detouring EntryPoint(): %ld\n", error);
+        }
+    }
+    else if (dwReason == DLL_PROCESS_DETACH) {
+        DetourTransactionBegin();
+        DetourUpdateThread(GetCurrentThread());
+        if (TrueSleepEx != NULL) {
+            DetourDetach(&(PVOID&)TrueSleepEx, (PVOID)TimedSleepEx);
+        }
+        DetourDetach(&(PVOID&)TrueEntryPoint, TimedEntryPoint);
+        error = DetourTransactionCommit();
+
+        printf("dslept" DETOURS_STRINGIFY(DETOURS_BITS) ".dll: "
+               " Removed Sleep() detours (%ld), slept %ld ticks.\n", error, dwSlept);
+
+        fflush(stdout);
+    }
+    return TRUE;
+}
+//
+///////////////////////////////////////////////////////////////// End of File.