OpenCoverage

stats.c

Absolute File Name:/home/opencoverage/opencoverage/guest-scripts/bash/src/lib/malloc/stats.c
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1-
2-
3-
4-
5-
6-
7-
8-
9-
10extern int malloc_free_blocks (int);-
11-
12extern struct _malstats _mstats;-
13-
14extern FILE *_imalloc_fopen (char *, char *, char *, char *, size_t);-
15-
16struct bucket_stats-
17malloc_bucket_stats (size)-
18 int size;-
19{-
20 struct bucket_stats v;-
21-
22 v.nfree = 0;-
23-
24 if (size < 0
size < 0Description
TRUEnever evaluated
FALSEnever evaluated
 || size >= 30
size >= 30Description
TRUEnever evaluated
FALSEnever evaluated
)		0
25 {-
26 v.blocksize = 0;-
27 v.nused = v.nmal = v.nmorecore = v.nlesscore = v.nsplit = 0;-
28 return
never executed: return v;
 v;
never executed: return v;
0
29 }-
30-
31 v.blocksize = 1 << (size + 3);-
32 v.nused = _mstats.nmalloc[size];-
33 v.nmal = _mstats.tmalloc[size];-
34 v.nmorecore = _mstats.nmorecore[size];-
35 v.nlesscore = _mstats.nlesscore[size];-
36 v.nsplit = _mstats.nsplit[size];-
37 v.ncoalesce = _mstats.ncoalesce[size];-
38-
39 v.nfree = malloc_free_blocks (size);-
40-
41 return
never executed: return v;
 v;
never executed: return v;
0
42}-
43-
44-
45-
46-
47-
48struct _malstats-
49malloc_stats ()-
50{-
51 struct _malstats result;-
52 struct bucket_stats v;-
53 register int i;-
54-
55 result = _mstats;-
56 result.bytesused = result.bytesfree = 0;-
57 for (i = 0; i < 30
i < 30Description
TRUEnever evaluated
FALSEnever evaluated
; i++)		0
58 {-
59 v = malloc_bucket_stats (i);-
60 result.bytesfree += v.nfree * v.blocksize;-
61 result.bytesused += v.nused * v.blocksize;-
62 }
never executed: end of block
0
63 return
never executed: return (result);
 (result);
never executed: return (result);
0
64}-
65-
66static void-
67_print_malloc_stats (s, fp)-
68 char *s;-
69 FILE *fp;-
70{-
71 register int i;-
72 unsigned long totused, totfree;-
73 struct bucket_stats v;-
74-
75 fprintf (fp, "Memory allocation statistics: %s\n size\tfree\tin use\ttotal\tmorecore lesscore split\tcoalesce\n", s ? s : "");-
76 for (i = totused = totfree = 0; i < 30
i < 30Description
TRUEnever evaluated
FALSEnever evaluated
; i++)		0
77 {-
78 v = malloc_bucket_stats (i);-
79 if (v.nmal > 0
v.nmal > 0Description
TRUEnever evaluated
FALSEnever evaluated
)		0
80 fprintf (fp, "%8lu\t%4d\t%6d\t%5d\t%8d\t%d %5d %8d\n", (unsigned long)v.blocksize, v.nfree, v.nused, v.nmal, v.nmorecore, v.nlesscore, v.nsplit, v.ncoalesce);
never executed: fprintf (fp, "%8lu\t%4d\t%6d\t%5d\t%8d\t%d %5d %8d\n", (unsigned long)v.blocksize, v.nfree, v.nused, v.nmal, v.nmorecore, v.nlesscore, v.nsplit, v.ncoalesce);
0
81 totfree += v.nfree * v.blocksize;-
82 totused += v.nused * v.blocksize;-
83 }
never executed: end of block
0
84 fprintf (fp, "\nTotal bytes in use: %lu, total bytes free: %lu\n",-
85 totused, totfree);-
86 fprintf (fp, "\nTotal bytes requested by application: %lu\n", (unsigned long)_mstats.bytesreq);-
87 fprintf (fp, "Total mallocs: %d, total frees: %d, total reallocs: %d (%d copies)\n",-
88 _mstats.nmal, _mstats.nfre, _mstats.nrealloc, _mstats.nrcopy);-
89 fprintf (fp, "Total sbrks: %d, total bytes via sbrk: %d\n",-
90 _mstats.nsbrk, _mstats.tsbrk);-
91 fprintf (fp, "Total blocks split: %d, total block coalesces: %d\n",-
92 _mstats.tbsplit, _mstats.tbcoalesce);-
93}
never executed: end of block
0
94-
95void-
96print_malloc_stats (s)-
97 char *s;-
98{-
99 _print_malloc_stats (s, -
100 stderr-
101 );-
102}
never executed: end of block
0
103-
104void-
105fprint_malloc_stats (s, fp)-
106 char *s;-
107 FILE *fp;-
108{-
109 _print_malloc_stats (s, fp);-
110}
never executed: end of block
0
111-
112-
113-
114void-
115trace_malloc_stats (s, fn)-
116 char *s, *fn;-
117{-
118 FILE *fp;-
119 char defname[sizeof ("/var/tmp/maltrace/stats.") + 64];-
120 static char mallbuf[1024];-
121-
122 fp = _imalloc_fopen (s, fn, "/var/tmp/maltrace/stats.", defname, sizeof (defname));-
123 if (fp
fpDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
124 {-
125 setvbuf (fp, mallbuf, -
126 0-
127 , sizeof (mallbuf));-
128 _print_malloc_stats (s, fp);-
129 fflush(fp);-
130 fclose(fp);-
131 }
never executed: end of block
0
132}
never executed: end of block
0
133-
134-
135-
136-
137FILE *-
138_imalloc_fopen (s, fn, def, defbuf, defsiz)-
139 char *s;-
140 char *fn;-
141 char *def;-
142 char *defbuf;-
143 size_t defsiz;-
144{-
145 char fname[1024];-
146 long l;-
147 FILE *fp;-
148-
149 l = (long)getpid ();-
150 if (fn == 0
fn == 0Description
TRUEnever evaluated
FALSEnever evaluated
)		0
151 {-
152 sprintf (defbuf, "%s%ld", def, l);-
153 fp = fopen(defbuf, "w");-
154 }
never executed: end of block
0
155 else-
156 {-
157 char *p, *q, *r;-
158 char pidbuf[32];-
159 int sp;-
160-
161 sprintf (pidbuf, "%ld", l);-
162 if ((
(strlen (pidbu...sizeof (fname)Description
TRUEnever evaluated
FALSEnever evaluated
strlen (pidbuf) + strlen (fn) + 2) >= sizeof (fname)
(strlen (pidbu...sizeof (fname)Description
TRUEnever evaluated
FALSEnever evaluated
)		0
163 return
never executed: return ((FILE *)0);
 ((FILE *)0);
never executed: return ((FILE *)0);
0
164 for (sp = 0, p = fname, q = fn; *
*qDescription
TRUEnever evaluated
FALSEnever evaluated
q
*qDescription
TRUEnever evaluated
FALSEnever evaluated
; )		0
165 {-
166 if (sp == 0
sp == 0Description
TRUEnever evaluated
FALSEnever evaluated
 && *
*q == '%'Description
TRUEnever evaluated
FALSEnever evaluated
q == '%'
*q == '%'Description
TRUEnever evaluated
FALSEnever evaluated
 && q[1] == 'p'
q[1] == 'p'Description
TRUEnever evaluated
FALSEnever evaluated
)		0
167 {-
168 sp = 1;-
169 for (r = pidbuf; *
*rDescription
TRUEnever evaluated
FALSEnever evaluated
r
*rDescription
TRUEnever evaluated
FALSEnever evaluated
; )		0
170 *
never executed: *p++ = *r++;
p++ = *r++;
never executed: *p++ = *r++;
0
171 q += 2;-
172 }
never executed: end of block
0
173 else-
174 *
never executed: *p++ = *q++;
p++ = *q++;
never executed: *p++ = *q++;
0
175 }-
176 *p = '\0';-
177 fp = fopen (fname, "w");-
178 }
never executed: end of block
0
179-
180 return
never executed: return fp;
 fp;
never executed: return fp;
0
181}-
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