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