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