1 /*
2  * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved.
3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4  *
5  * This code is free software; you can redistribute it and/or modify it
6  * under the terms of the GNU General Public License version 2 only, as
7  * published by the Free Software Foundation.  Oracle designates this
8  * particular file as subject to the "Classpath" exception as provided
9  * by Oracle in the LICENSE file that accompanied this code.
10  *
11  * This code is distributed in the hope that it will be useful, but WITHOUT
12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14  * version 2 for more details (a copy is included in the LICENSE file that
15  * accompanied this code).
16  *
17  * You should have received a copy of the GNU General Public License version
18  * 2 along with this work; if not, write to the Free Software Foundation,
19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20  *
21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22  * or visit www.oracle.com if you need additional information or have any
23  * questions.
24  */
25 
26 #if !defined(_DEBUG_TRACE_H)
27 #define _DEBUG_TRACE_H
28 
29 #if defined(__cplusplus)
30 extern "C" {
31 #endif
32 
33 #if defined(DEBUG)
34 
35 #include "debug_util.h"
36 
37 /* Use THIS_FILE when it is available. */
38 #ifndef THIS_FILE
39     #define THIS_FILE __FILE__
40 #endif
41 
42 typedef int     dtrace_id;
43 enum {
44     UNDEFINED_TRACE_ID = -1 /* indicates trace point has not been registered yet */
45 };
46 
47 /* prototype for client provided output callback function */
48 typedef void (*DTRACE_OUTPUT_CALLBACK)(const char * msg);
49 
50 /* prototype for client provided print callback function */
51 typedef void (*DTRACE_PRINT_CALLBACK)(const char * file, int line, int argc, const char * fmt, va_list arglist);
52 
53 extern void DTrace_EnableAll(dbool_t enabled);
54 extern void DTrace_EnableFile(const char * file, dbool_t enabled);
55 extern void DTrace_EnableLine(const char * file, int linenum, dbool_t enabled);
56 extern void DTrace_SetOutputCallback(DTRACE_OUTPUT_CALLBACK pfn);
57 extern void DTrace_Initialize();
58 extern void DTrace_Shutdown();
59 void DTrace_DisableMutex();
60 extern void DTrace_VPrintImpl(const char * fmt, va_list arglist);
61 extern void DTrace_PrintImpl(const char * fmt, ...);
62 extern void DTrace_PrintFunction(DTRACE_PRINT_CALLBACK pfn, dtrace_id * pFileTraceId, dtrace_id * pTraceId, const char * file, int line, int argc, const char * fmt, ...);
63 
64 /* these functions are exported only for use in macros-- do not call them directly!!! */
65 extern void DTrace_VPrint(const char * file, int line, int argc, const char * fmt, va_list arglist);
66 extern void DTrace_VPrintln(const char * file, int line, int argc, const char * fmt, va_list arglist);
67 
68 /* each file includes this flag indicating module trace status */
69 static dtrace_id        _Dt_FileTraceId = UNDEFINED_TRACE_ID;
70 
71 /* not meant to be called from client code--
72  * it's just a template for the other macros
73  */
74 #define _DTrace_Template(_func, _ac, _f, _a1, _a2, _a3, _a4, _a5, _a6, _a7, _a8) \
75 { \
76     static dtrace_id _dt_lineid_ = UNDEFINED_TRACE_ID; \
77     DTrace_PrintFunction((_func), &_Dt_FileTraceId, &_dt_lineid_, THIS_FILE, __LINE__, (_ac), (_f), (_a1), (_a2), (_a3), (_a4), (_a5), (_a6), (_a7), (_a8) ); \
78 }
79 
80 /* printf style trace macros */
81 #define DTRACE_PRINT(_fmt) \
82         _DTrace_Template(DTrace_VPrint, 0, (_fmt), 0, 0, 0, 0, 0, 0, 0, 0)
83 #define DTRACE_PRINT1(_fmt, _arg1) \
84         _DTrace_Template(DTrace_VPrint, 1, (_fmt), (_arg1), 0, 0, 0, 0, 0, 0, 0)
85 #define DTRACE_PRINT2(_fmt, _arg1, _arg2) \
86         _DTrace_Template(DTrace_VPrint, 2, (_fmt), (_arg1), (_arg2), 0, 0, 0, 0, 0, 0)
87 #define DTRACE_PRINT3(_fmt, _arg1, _arg2, _arg3) \
88         _DTrace_Template(DTrace_VPrint, 3, (_fmt), (_arg1), (_arg2), (_arg3), 0, 0, 0, 0, 0)
89 #define DTRACE_PRINT4(_fmt, _arg1, _arg2, _arg3, _arg4) \
90         _DTrace_Template(DTrace_VPrint, 4, (_fmt), (_arg1), (_arg2), (_arg3), (_arg4), 0, 0, 0, 0)
91 #define DTRACE_PRINT5(_fmt, _arg1, _arg2, _arg3, _arg4, _arg5) \
92         _DTrace_Template(DTrace_VPrint, 5, (_fmt), (_arg1), (_arg2), (_arg3), (_arg4), (_arg5), 0, 0, 0)
93 #define DTRACE_PRINT6(_fmt, _arg1, _arg2, _arg3, _arg4, _arg5, _arg6) \
94         _DTrace_Template(DTrace_VPrint, 6, (_fmt), (_arg1), (_arg2), (_arg3), (_arg4), (_arg5), (_arg6), 0, 0)
95 #define DTRACE_PRINT7(_fmt, _arg1, _arg2, _arg3, _arg4, _arg5, _arg6, _arg7) \
96         _DTrace_Template(DTrace_VPrint, 7, (_fmt), (_arg1), (_arg2), (_arg3), (_arg4), (_arg5), (_arg6), (_arg7), 0)
97 #define DTRACE_PRINT8(_fmt, _arg1, _arg2, _arg3, _arg4, _arg5, _arg6, _arg7, _arg8) \
98         _DTrace_Template(DTrace_VPrint, 8, (_fmt), (_arg1), (_arg2), (_arg3), (_arg4), (_arg5), (_arg6), (_arg7), (_arg8))
99 
100 /* printf style trace macros that automatically output a newline */
101 #define DTRACE_PRINTLN(_fmt) \
102         _DTrace_Template(DTrace_VPrintln, 0, (_fmt), 0, 0, 0, 0, 0, 0, 0, 0)
103 #define DTRACE_PRINTLN1(_fmt, _arg1) \
104         _DTrace_Template(DTrace_VPrintln, 1, (_fmt), (_arg1), 0, 0, 0, 0, 0, 0, 0)
105 #define DTRACE_PRINTLN2(_fmt, _arg1, _arg2) \
106         _DTrace_Template(DTrace_VPrintln, 2, (_fmt), (_arg1), (_arg2), 0, 0, 0, 0, 0, 0)
107 #define DTRACE_PRINTLN3(_fmt, _arg1, _arg2, _arg3) \
108         _DTrace_Template(DTrace_VPrintln, 3, (_fmt), (_arg1), (_arg2), (_arg3), 0, 0, 0, 0, 0)
109 #define DTRACE_PRINTLN4(_fmt, _arg1, _arg2, _arg3, _arg4) \
110         _DTrace_Template(DTrace_VPrintln, 4, (_fmt), (_arg1), (_arg2), (_arg3), (_arg4), 0, 0, 0, 0)
111 #define DTRACE_PRINTLN5(_fmt, _arg1, _arg2, _arg3, _arg4, _arg5) \
112         _DTrace_Template(DTrace_VPrintln, 5, (_fmt), (_arg1), (_arg2), (_arg3), (_arg4), (_arg5), 0, 0, 0)
113 #define DTRACE_PRINTLN6(_fmt, _arg1, _arg2, _arg3, _arg4, _arg5, _arg6) \
114         _DTrace_Template(DTrace_VPrintln, 6, (_fmt), (_arg1), (_arg2), (_arg3), (_arg4), (_arg5), (_arg6), 0, 0)
115 #define DTRACE_PRINTLN7(_fmt, _arg1, _arg2, _arg3, _arg4, _arg5, _arg6, _arg7) \
116         _DTrace_Template(DTrace_VPrintln, 7, (_fmt), (_arg1), (_arg2), (_arg3), (_arg4), (_arg5), (_arg6), (_arg7), 0)
117 #define DTRACE_PRINTLN8(_fmt, _arg1, _arg2, _arg3, _arg4, _arg5, _arg6, _arg7, _arg8) \
118         _DTrace_Template(DTrace_VPrintln, 8, (_fmt), (_arg1), (_arg2), (_arg3), (_arg4), (_arg5), (_arg6), (_arg7), (_arg8))
119 
120 #else /* else DEBUG not defined */
121 
122 /* printf style trace macros */
123 #define DTRACE_PRINT(_fmt)
124 #define DTRACE_PRINT1(_fmt, _arg1)
125 #define DTRACE_PRINT2(_fmt, _arg1, _arg2)
126 #define DTRACE_PRINT3(_fmt, _arg1, _arg2, _arg3)
127 #define DTRACE_PRINT4(_fmt, _arg1, _arg2, _arg3, _arg4)
128 #define DTRACE_PRINT5(_fmt, _arg1, _arg2, _arg3, _arg4, _arg5)
129 #define DTRACE_PRINT6(_fmt, _arg1, _arg2, _arg3, _arg4, _arg5, _arg6)
130 #define DTRACE_PRINT7(_fmt, _arg1, _arg2, _arg3, _arg4, _arg5, _arg6, _arg7)
131 #define DTRACE_PRINT8(_fmt, _arg1, _arg2, _arg3, _arg4, _arg5, _arg6, _arg7, _arg8)
132 
133 /* printf style trace macros that automatically output a newline */
134 #define DTRACE_PRINTLN(_fmt)
135 #define DTRACE_PRINTLN1(_fmt, _arg1)
136 #define DTRACE_PRINTLN2(_fmt, _arg1, _arg2)
137 #define DTRACE_PRINTLN3(_fmt, _arg1, _arg2, _arg3)
138 #define DTRACE_PRINTLN4(_fmt, _arg1, _arg2, _arg3, _arg4)
139 #define DTRACE_PRINTLN5(_fmt, _arg1, _arg2, _arg3, _arg4, _arg5)
140 #define DTRACE_PRINTLN6(_fmt, _arg1, _arg2, _arg3, _arg4, _arg5, _arg6)
141 #define DTRACE_PRINTLN7(_fmt, _arg1, _arg2, _arg3, _arg4, _arg5, _arg6, _arg7)
142 #define DTRACE_PRINTLN8(_fmt, _arg1, _arg2, _arg3, _arg4, _arg5, _arg6, _arg7, _arg8)
143 
144 #endif /* endif DEBUG defined */
145 
146 #if defined(__cplusplus)
147 } /* extern "C" */
148 #endif
149 
150 #endif /* _DEBUG_TRACE_H */
151