1 // SPDX-License-Identifier: GPL-2.0
2 #include "util.h"
3 #include "../util/debug.h"
4 #include <stdio.h>
5
6 /*
7 * Default error logging functions
8 */
9 static int perf_stdio__error(const char *format, va_list args)
10 {
11 fprintf(stderr, "Error:\n");
12 vfprintf(stderr, format, args);
13 return 0;
14 }
15
16 static int perf_stdio__warning(const char *format, va_list args)
17 {
18 if (quiet)
19 return 0;
20
21 fprintf(stderr, "Warning:\n");
22 vfprintf(stderr, format, args);
23 return 0;
24 }
25
26 static struct perf_error_ops default_eops =
27 {
28 .error = perf_stdio__error,
29 .warning = perf_stdio__warning,
30 };
31
32 static struct perf_error_ops *perf_eops = &default_eops;
33
34
35 int ui__error(const char *format, ...)
36 {
37 int ret;
38 va_list args;
39
40 va_start(args, format);
41 ret = perf_eops->error(format, args);
42 va_end(args);
43
44 return ret;
45 }
46
47 int ui__warning(const char *format, ...)
48 {
49 int ret;
50 va_list args;
51 if (quiet)
52 return 0;
53
54 va_start(args, format);
55 ret = perf_eops->warning(format, args);
56 va_end(args);
57
58 return ret;
59 }
60
61 /**
62 * perf_error__register - Register error logging functions
63 * @eops: The pointer to error logging function struct
64 *
65 * Register UI-specific error logging functions. Before calling this,
66 * other logging functions should be unregistered, if any.
67 */
68 int perf_error__register(struct perf_error_ops *eops)
69 {
70 if (perf_eops != &default_eops)
71 return -1;
72
73 perf_eops = eops;
74 return 0;
75 }
76
77 /**
78 * perf_error__unregister - Unregister error logging functions
79 * @eops: The pointer to error logging function struct
80 *
81 * Unregister already registered error logging functions.
82 */
83 int perf_error__unregister(struct perf_error_ops *eops)
84 {
85 if (perf_eops != eops)
86 return -1;
87
88 perf_eops = &default_eops;
89 return 0;
90 }
91
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