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@ -47,29 +47,35 @@
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* the full size. These APIs are defined in <wdm.h> and <ntifs.h>
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* but those headers are meant for driver-level development and
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* conflict with the regular user-level headers, so we explicitly
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* declare them here. Using these APIs also means we must link to
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* ntdll.dll, which is not linked by default in user code.
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* declare them here. We get pointers to these functions from
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* NTDLL.DLL at runtime, to avoid buildtime dependencies on any
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* NTDLL import libraries.
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*/
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NTSTATUS WINAPI
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NtCreateSection(OUT PHANDLE sh, IN ACCESS_MASK acc,
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typedef NTSTATUS WINAPI (NtCreateSectionFunc)
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(OUT PHANDLE sh, IN ACCESS_MASK acc,
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IN void * oa OPTIONAL,
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IN PLARGE_INTEGER ms OPTIONAL,
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IN ULONG pp, IN ULONG aa, IN HANDLE fh OPTIONAL);
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static NtCreateSectionFunc *NtCreateSection;
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typedef enum _SECTION_INHERIT {
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ViewShare = 1,
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ViewUnmap = 2
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} SECTION_INHERIT;
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NTSTATUS WINAPI
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NtMapViewOfSection(IN PHANDLE sh, IN HANDLE ph,
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typedef NTSTATUS WINAPI (NtMapViewOfSectionFunc)
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(IN PHANDLE sh, IN HANDLE ph,
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IN OUT PVOID *addr, IN ULONG_PTR zbits,
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IN SIZE_T cs, IN OUT PLARGE_INTEGER off OPTIONAL,
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IN OUT PSIZE_T vs, IN SECTION_INHERIT ih,
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IN ULONG at, IN ULONG pp);
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NTSTATUS WINAPI
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NtClose(HANDLE h);
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static NtMapViewOfSectionFunc *NtMapViewOfSection;
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typedef NTSTATUS WINAPI (NtCloseFunc)(HANDLE h);
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static NtCloseFunc *NtClose;
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/** getpid() returns int; MinGW defines pid_t but MinGW64 typedefs it
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* as int64 which is wrong. MSVC doesn't define it at all, so just
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@ -4397,6 +4403,21 @@ mdb_env_open2(MDB_env *env, int prev)
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env->me_pidquery = MDB_PROCESS_QUERY_LIMITED_INFORMATION;
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else
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env->me_pidquery = PROCESS_QUERY_INFORMATION;
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/* Grab functions we need from NTDLL */
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if (!NtCreateSection) {
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HMODULE h = GetModuleHandle("NTDLL.DLL");
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if (!h)
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return MDB_PANIC;
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NtClose = (NtCloseFunc *)GetProcAddress(h, "NtClose");
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if (!NtClose)
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return MDB_PANIC;
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NtMapViewOfSection = (NtMapViewOfSectionFunc *)GetProcAddress(h, "NtMapViewOfSection");
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if (!NtMapViewOfSection)
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return MDB_PANIC;
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NtCreateSection = (NtCreateSectionFunc *)GetProcAddress(h, "NtCreateSection");
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if (!NtCreateSection)
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return MDB_PANIC;
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}
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#endif /* _WIN32 */
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#ifdef BROKEN_FDATASYNC
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