3 * Copyright (C) 2000 David Welch <welch@cwcom.net>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 /* $Id: trace.c,v 1.1 2001/04/10 18:15:22 dwelch Exp $
21 * PROJECT: ReactOS kernel
22 * PURPOSE: Tracing library calls
23 * FILE: lib/ntdll/rtl/trace.c
24 * PROGRAMER: David Welch <welch@cwcom.net>
27 /* INCLUDES *****************************************************************/
29 #include <ddk/ntddk.h>
30 #include <ntdll/trace.h>
36 /* GLOBALS *******************************************************************/
38 static NTDLL_TRACE_TABLE TraceTable
;
39 static BOOLEAN TraceTableValid
= FALSE
;
41 /* FUNCTIONS *****************************************************************/
47 UNICODE_STRING SectionName
;
48 OBJECT_ATTRIBUTES ObjectAttributes
;
51 PROCESS_BASIC_INFORMATION Pbi
;
57 Status
= NtQueryInformationProcess(NtCurrentProcess(),
58 ProcessBasicInformation
,
62 if (!NT_SUCCESS(Status
))
67 sprintf(Buffer
, "\\??\\TraceSection%d", Pbi
.UniqueProcessId
);
69 InitializeObjectAttributes(&ObjectAttributes
,
74 Status
= NtOpenSection(&SectionHandle
,
77 if (!NT_SUCCESS(Status
))
85 Status
= NtMapViewOfSection(SectionHandle
,
89 sizeof(NTDLL_TRACE_TABLE
),
95 if (!NT_SUCCESS(Status
))
97 NtClose(SectionHandle
);
100 NtClose(SectionHandle
);
102 memcpy(&TraceTable
, BaseAddress
, sizeof(TraceTable
));
103 TraceTableValid
= TRUE
;
105 Status
= NtUnmapViewOfSection(NtCurrentProcess(), BaseAddress
);
107 return(STATUS_SUCCESS
);
111 RtlPrintTrace(ULONG Flag
, PCH Format
, ...)
116 if (!TraceTableValid
)
120 if (TraceTable
.Flags
[Flag
/ BITS_IN_CHAR
] & (1 << (Flag
% BITS_IN_CHAR
)))
122 va_start(ap
, Format
);
123 vsprintf(FString
, Format
, ap
);