[reactos] 01/01: [UMPNPMGR] PNP_GetDeviceList/PNP_GetDeviceListSize: Move device relations code into separate functions.

[Eric Kohl]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=ccb8c906b076f6316b05b…

commit ccb8c906b076f6316b05beaa981e815b3c127278
Author:     Eric Kohl <eric.kohl(a)reactos.org>
AuthorDate: Mon Dec 31 11:20:30 2018 +0100
Commit:     Eric Kohl <eric.kohl(a)reactos.org>
CommitDate: Mon Dec 31 11:21:17 2018 +0100

    [UMPNPMGR] PNP_GetDeviceList/PNP_GetDeviceListSize: Move device relations code into
separate functions.
---
 base/services/umpnpmgr/umpnpmgr.c | 178 +++++++++++++++++++++++---------------
 1 file changed, 108 insertions(+), 70 deletions(-)

diff --git a/base/services/umpnpmgr/umpnpmgr.c b/base/services/umpnpmgr/umpnpmgr.c
index 2420a47a85..e7d1d42bdf 100644
--- a/base/services/umpnpmgr/umpnpmgr.c
+++ b/base/services/umpnpmgr/umpnpmgr.c
@@ -529,6 +529,57 @@ PNP_EnumerateSubKeys(
 }
 
 
+static
+CONFIGRET
+GetRelationsInstanceList(
+    _In_ PWSTR pszDevice,
+    _In_ DWORD ulFlags,
+    _Inout_ PWSTR pszBuffer,
+    _Inout_ PDWORD pulLength)
+{
+    PLUGPLAY_CONTROL_DEVICE_RELATIONS_DATA PlugPlayData;
+    NTSTATUS Status;
+    CONFIGRET ret = CR_SUCCESS;
+
+    RtlInitUnicodeString(&PlugPlayData.DeviceInstance,
+                         pszDevice);
+
+    if (ulFlags & CM_GETIDLIST_FILTER_BUSRELATIONS)
+    {
+        PlugPlayData.Relations = 3;
+    }
+    else if (ulFlags & CM_GETIDLIST_FILTER_POWERRELATIONS)
+    {
+        PlugPlayData.Relations = 2;
+    }
+    else if (ulFlags & CM_GETIDLIST_FILTER_REMOVALRELATIONS)
+    {
+        PlugPlayData.Relations = 1;
+    }
+    else if (ulFlags & CM_GETIDLIST_FILTER_EJECTRELATIONS)
+    {
+        PlugPlayData.Relations = 0;
+    }
+
+    PlugPlayData.BufferSize = *pulLength * sizeof(WCHAR);
+    PlugPlayData.Buffer = pszBuffer;
+
+    Status = NtPlugPlayControl(PlugPlayControlQueryDeviceRelations,
+                               (PVOID)&PlugPlayData,
+                               sizeof(PLUGPLAY_CONTROL_DEVICE_RELATIONS_DATA));
+    if (NT_SUCCESS(Status))
+    {
+        *pulLength = PlugPlayData.BufferSize / sizeof(WCHAR);
+    }
+    else
+    {
+        ret = NtStatusToCrError(Status);
+    }
+
+    return ret;
+}
+
+
 static
 CONFIGRET
 GetDeviceInstanceList(
@@ -729,12 +780,10 @@ PNP_GetDeviceList(
     PNP_RPC_STRING_LEN *pulLength,
     DWORD ulFlags)
 {
-    PLUGPLAY_CONTROL_DEVICE_RELATIONS_DATA PlugPlayData;
     WCHAR szEnumerator[MAX_DEVICE_ID_LEN];
     WCHAR szDevice[MAX_DEVICE_ID_LEN];
     WCHAR szInstance[MAX_DEVICE_ID_LEN];
     CONFIGRET ret = CR_SUCCESS;
-    NTSTATUS Status;
 
     DPRINT("PNP_GetDeviceList() called\n");
 
@@ -754,39 +803,10 @@ PNP_GetDeviceList(
          CM_GETIDLIST_FILTER_REMOVALRELATIONS |
          CM_GETIDLIST_FILTER_EJECTRELATIONS))
     {
-        RtlInitUnicodeString(&PlugPlayData.DeviceInstance,
-                             pszFilter);
-        if (ulFlags & CM_GETIDLIST_FILTER_BUSRELATIONS)
-        {
-            PlugPlayData.Relations = 3;
-        }
-        else if (ulFlags & CM_GETIDLIST_FILTER_POWERRELATIONS)
-        {
-            PlugPlayData.Relations = 2;
-        }
-        else if (ulFlags & CM_GETIDLIST_FILTER_REMOVALRELATIONS)
-        {
-            PlugPlayData.Relations = 1;
-        }
-        else if (ulFlags & CM_GETIDLIST_FILTER_EJECTRELATIONS)
-        {
-            PlugPlayData.Relations = 0;
-        }
-
-        PlugPlayData.BufferSize = *pulLength * sizeof(WCHAR);
-        PlugPlayData.Buffer = Buffer;
-
-        Status = NtPlugPlayControl(PlugPlayControlQueryDeviceRelations,
-                                   (PVOID)&PlugPlayData,
-                                   sizeof(PLUGPLAY_CONTROL_DEVICE_RELATIONS_DATA));
-        if (NT_SUCCESS(Status))
-        {
-            *pulLength = PlugPlayData.BufferSize / sizeof(WCHAR);
-        }
-        else
-        {
-            ret = NtStatusToCrError(Status);
-        }
+        ret = GetRelationsInstanceList(pszFilter,
+                                       ulFlags,
+                                       Buffer,
+                                       pulLength);
     }
     else if (ulFlags & CM_GETIDLIST_FILTER_SERVICE)
     {
@@ -822,6 +842,56 @@ PNP_GetDeviceList(
 }
 
 
+static
+CONFIGRET
+GetRelationsInstanceListSize(
+    _In_ PWSTR pszDevice,
+    _In_ DWORD ulFlags,
+    _Inout_ PDWORD pulLength)
+{
+    PLUGPLAY_CONTROL_DEVICE_RELATIONS_DATA PlugPlayData;
+    NTSTATUS Status;
+    CONFIGRET ret = CR_SUCCESS;
+
+    RtlInitUnicodeString(&PlugPlayData.DeviceInstance,
+                         pszDevice);
+
+    if (ulFlags & CM_GETIDLIST_FILTER_BUSRELATIONS)
+    {
+        PlugPlayData.Relations = 3;
+    }
+    else if (ulFlags & CM_GETIDLIST_FILTER_POWERRELATIONS)
+    {
+        PlugPlayData.Relations = 2;
+    }
+    else if (ulFlags & CM_GETIDLIST_FILTER_REMOVALRELATIONS)
+    {
+        PlugPlayData.Relations = 1;
+    }
+    else if (ulFlags & CM_GETIDLIST_FILTER_EJECTRELATIONS)
+    {
+        PlugPlayData.Relations = 0;
+    }
+
+    PlugPlayData.BufferSize = 0;
+    PlugPlayData.Buffer = NULL;
+
+    Status = NtPlugPlayControl(PlugPlayControlQueryDeviceRelations,
+                               (PVOID)&PlugPlayData,
+                               sizeof(PLUGPLAY_CONTROL_DEVICE_RELATIONS_DATA));
+    if (NT_SUCCESS(Status))
+    {
+        *pulLength = PlugPlayData.BufferSize / sizeof(WCHAR);
+    }
+    else
+    {
+        ret = NtStatusToCrError(Status);
+    }
+
+    return ret;
+}
+
+
 static
 CONFIGRET
 GetDeviceInstanceListSize(
@@ -978,12 +1048,10 @@ PNP_GetDeviceListSize(
     PNP_RPC_BUFFER_SIZE *pulLength,
     DWORD ulFlags)
 {
-    PLUGPLAY_CONTROL_DEVICE_RELATIONS_DATA PlugPlayData;
     WCHAR szEnumerator[MAX_DEVICE_ID_LEN];
     WCHAR szDevice[MAX_DEVICE_ID_LEN];
     WCHAR szInstance[MAX_DEVICE_ID_LEN];
     CONFIGRET ret = CR_SUCCESS;
-    NTSTATUS Status;
 
     DPRINT("PNP_GetDeviceListSize(%p %S %p 0x%lx)\n",
            hBinding, pszFilter, pulLength, ulFlags);
@@ -1006,39 +1074,9 @@ PNP_GetDeviceListSize(
          CM_GETIDLIST_FILTER_REMOVALRELATIONS |
          CM_GETIDLIST_FILTER_EJECTRELATIONS))
     {
-        RtlInitUnicodeString(&PlugPlayData.DeviceInstance,
-                             pszFilter);
-        if (ulFlags & CM_GETIDLIST_FILTER_BUSRELATIONS)
-        {
-            PlugPlayData.Relations = 3;
-        }
-        else if (ulFlags & CM_GETIDLIST_FILTER_POWERRELATIONS)
-        {
-            PlugPlayData.Relations = 2;
-        }
-        else if (ulFlags & CM_GETIDLIST_FILTER_REMOVALRELATIONS)
-        {
-            PlugPlayData.Relations = 1;
-        }
-        else if (ulFlags & CM_GETIDLIST_FILTER_EJECTRELATIONS)
-        {
-            PlugPlayData.Relations = 0;
-        }
-
-        PlugPlayData.BufferSize = 0;
-        PlugPlayData.Buffer = NULL;
-
-        Status = NtPlugPlayControl(PlugPlayControlQueryDeviceRelations,
-                                   (PVOID)&PlugPlayData,
-                                   sizeof(PLUGPLAY_CONTROL_DEVICE_RELATIONS_DATA));
-        if (NT_SUCCESS(Status))
-        {
-            *pulLength = PlugPlayData.BufferSize / sizeof(WCHAR);
-        }
-        else
-        {
-            ret = NtStatusToCrError(Status);
-        }
+        ret = GetRelationsInstanceListSize(pszFilter,
+                                           ulFlags,
+                                           pulLength);
     }
     else if (ulFlags & CM_GETIDLIST_FILTER_SERVICE)
     {