[PATCH 4/4] kernel32: Reimplement GetMaximumProcessorCount on top of SystemCpuInformation

[Alex Henrie]

Signed-off-by: Alex Henrie 
---
This fixes the console spam when the Clinithink natural language
processing software https://www.clinithink.com/ calls
GetMaximumProcessorCount repeatedly.
---
 dlls/kernel32/kernel_main.c    | 1 +
 dlls/kernel32/kernel_private.h | 1 +
 dlls/kernel32/process.c        | 9 +++++++--
 3 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/dlls/kernel32/kernel_main.c b/dlls/kernel32/kernel_main.c
index 89394e16430..531a580749f 100644
--- a/dlls/kernel32/kernel_main.c
+++ b/dlls/kernel32/kernel_main.c
@@ -123,6 +123,7 @@ static BOOL process_attach( HMODULE module )
     RtlSetUnhandledExceptionFilter( UnhandledExceptionFilter );

NtQuerySystemInformation( SystemBasicInformation, &system_info, sizeof(system_info), NULL );
+    NtQuerySystemInformation( SystemCpuInformation, &cpu_info, sizeof(cpu_info), NULL );

copy_startup_info();

diff --git a/dlls/kernel32/kernel_private.h b/dlls/kernel32/kernel_private.h
index 633511d6140..cbd23f52f10 100644
--- a/dlls/kernel32/kernel_private.h
+++ b/dlls/kernel32/kernel_private.h
@@ -30,6 +30,7 @@ static inline BOOL set_ntstatus( NTSTATUS status )
 }

extern SYSTEM_BASIC_INFORMATION system_info DECLSPEC_HIDDEN;
+extern SYSTEM_CPU_INFORMATION cpu_info DECLSPEC_HIDDEN;

extern WCHAR *FILE_name_AtoW( LPCSTR name, BOOL alloc ) DECLSPEC_HIDDEN;
 extern DWORD FILE_name_WtoA( LPCWSTR src, INT srclen, LPSTR dest, INT destlen ) DECLSPEC_HIDDEN;
diff --git a/dlls/kernel32/process.c b/dlls/kernel32/process.c
index c1c3c484493..564fa703b5a 100644
--- a/dlls/kernel32/process.c
+++ b/dlls/kernel32/process.c
@@ -50,6 +50,7 @@ typedef struct
 } LOADPARMS32;

SYSTEM_BASIC_INFORMATION system_info = { 0 };
+SYSTEM_CPU_INFORMATION cpu_info = { 0 };

/* Process flags */
 #define PDB32_DEBUGGED      0x0001  /* Process is being debugged */
@@ -620,9 +621,13 @@ DWORD WINAPI GetActiveProcessorCount(WORD group)
  */
 DWORD WINAPI GetMaximumProcessorCount(WORD group)
 {
-    DWORD cpus = system_info.NumberOfProcessors;
+    DWORD cpus = cpu_info.MaximumCpus;
+
+    if (group == ALL_PROCESSOR_GROUPS)
+        TRACE("(0x%x): returning %u\n", group, cpus);
+    else
+        FIXME("(0x%x): processor groups not supported, returning %u\n", group, cpus);

-    FIXME("(0x%x): semi-stub, returning %u\n", group, cpus);
     return cpus;
 }