1 /*
2 * Copyright (c) 2016, Szymon Tomasz Stefanek
3 *
4 * This source code is released for free distribution under the terms of the
5 * GNU General Public License version 2 or (at your option) any later version.
6 *
7 * Tracing facility.
8 */
9
10 #include "general.h"
11 #include "trace.h"
12
13 #ifdef DO_TRACING
14
15 #include "options.h"
16 #include "read.h"
17
18 #include <stdio.h>
19 #include <stdarg.h>
20
traceEnter(const char * szFunction,const char * szFormat,...)21 void traceEnter(const char * szFunction,const char * szFormat,...)
22 {
23 if (!isTraced())
24 return;
25
26 debugIndent ();
27
28 fprintf(stderr,"[>> %s][at %lu] ",szFunction,getInputLineNumber());
29
30 va_list va;
31 va_start(va,szFormat);
32 vfprintf(stderr,szFormat,va);
33 va_end(va);
34
35 fprintf(stderr,"\n");
36
37 debugInc();
38 }
39
traceLeave(const char * szFunction,const char * szFormat,...)40 void traceLeave(const char * szFunction,const char * szFormat,...)
41 {
42 if (!isTraced())
43 return;
44
45 debugDec();
46 debugIndent ();
47
48 fprintf(stderr,"[<< %s][at %lu] ",szFunction,getInputLineNumber());
49
50 va_list va;
51 va_start(va,szFormat);
52 vfprintf(stderr,szFormat,va);
53 va_end(va);
54
55 fprintf(stderr,"\n");
56 }
57
tracePrintFmtVa(const char * szFormat,va_list va)58 static void tracePrintFmtVa(const char * szFormat, va_list va)
59 {
60 if (!isTraced())
61 return;
62
63 vfprintf(stderr,szFormat,va);
64 }
65
tracePrint(const char * szFunction,const char * szFormat,...)66 void tracePrint(const char * szFunction, const char * szFormat,...)
67 {
68 if (!isTraced())
69 return;
70
71 tracePrintPrefix(szFunction);
72
73 va_list va;
74 va_start(va,szFormat);
75 tracePrintFmtVa (szFormat,va);
76 va_end(va);
77
78 tracePrintNewline();
79 }
80
tracePrintFmt(const char * szFormat,...)81 void tracePrintFmt(const char * szFormat,...)
82 {
83 va_list va;
84 va_start(va,szFormat);
85 tracePrintFmtVa (szFormat,va);
86 va_end(va);
87 }
88
tracePrintPrefix(const char * szFunction)89 void tracePrintPrefix(const char * szFunction)
90 {
91 if (!isTraced())
92 return;
93
94 debugIndent();
95
96 fprintf(stderr,"[%s][at %lu] ",szFunction,getInputLineNumber());
97 }
98
tracePrintNewline(void)99 void tracePrintNewline(void)
100 {
101 if (!isTraced())
102 return;
103
104 fprintf(stderr,"\n");
105 }
106
107 static bool tracingMain;
108
traceMain(void)109 void traceMain(void)
110 {
111 verbose("Tracing main part\n");
112 tracingMain = true;
113 }
114
isMainTraced(void)115 bool isMainTraced(void)
116 {
117 return tracingMain;
118 }
119
120 #endif // DO_TRACING
121