Proper size return from output buffers
[fio.git] / log.c
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1#include <unistd.h>
2#include <fcntl.h>
3#include <string.h>
4#include <stdarg.h>
e46d8091 5#include <syslog.h>
3c39a379 6
ac9b9101 7#include "fio.h"
3c39a379 8
5768cc2b 9size_t log_valist(const char *str, va_list args)
e46d8091 10{
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11 char buffer[1024];
12 size_t len;
13
14 len = vsnprintf(buffer, sizeof(buffer), str, args);
98ffb8f3 15 len = min(len, sizeof(buffer) - 1);
734f38cb 16
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17 if (is_backend)
18 len = fio_server_text_output(FIO_LOG_INFO, buffer, len);
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19 if (log_syslog)
20 syslog(LOG_INFO, "%s", buffer);
21 else
22 len = fwrite(buffer, len, 1, f_out);
23
24 return len;
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25}
26
5768cc2b 27size_t log_local_buf(const char *buf, size_t len)
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28{
29 if (log_syslog)
30 syslog(LOG_INFO, "%s", buf);
31 else
32 len = fwrite(buf, len, 1, f_out);
33
34 return len;
35}
36
5768cc2b 37size_t log_info(const char *format, ...)
3c39a379 38{
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39 char buffer[1024];
40 va_list args;
41 size_t len;
3c39a379 42
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43 va_start(args, format);
44 len = vsnprintf(buffer, sizeof(buffer), format, args);
45 va_end(args);
98ffb8f3 46 len = min(len, sizeof(buffer) - 1);
f29b25a3 47
ac9b9101 48 if (is_backend)
084d1c6f 49 return fio_server_text_output(FIO_LOG_INFO, buffer, len);
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50 else if (log_syslog) {
51 syslog(LOG_INFO, "%s", buffer);
52 return len;
53 } else
ac9b9101 54 return fwrite(buffer, len, 1, f_out);
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55}
56
5768cc2b 57size_t __log_buf(struct buf_output *buf, const char *format, ...)
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58{
59 char buffer[1024];
60 va_list args;
61 size_t len;
62
63 va_start(args, format);
64 len = vsnprintf(buffer, sizeof(buffer), format, args);
65 va_end(args);
66 len = min(len, sizeof(buffer) - 1);
67
5768cc2b 68 return buf_output_add(buf, buffer, len);
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69}
70
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71int log_info_flush(void)
72{
73 if (is_backend || log_syslog)
74 return 0;
75
76 return fflush(f_out);
77}
78
5768cc2b 79size_t log_err(const char *format, ...)
fb71fbd7 80{
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81 char buffer[1024];
82 va_list args;
83 size_t len;
f29b25a3 84
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85 va_start(args, format);
86 len = vsnprintf(buffer, sizeof(buffer), format, args);
87 va_end(args);
98ffb8f3 88 len = min(len, sizeof(buffer) - 1);
fb71fbd7 89
ac9b9101 90 if (is_backend)
084d1c6f 91 return fio_server_text_output(FIO_LOG_ERR, buffer, len);
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92 else if (log_syslog) {
93 syslog(LOG_INFO, "%s", buffer);
94 return len;
95 } else {
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96 if (f_err != stderr) {
97 int fio_unused ret;
98
99 ret = fwrite(buffer, len, 1, stderr);
100 }
fb71fbd7 101
ac9b9101 102 return fwrite(buffer, len, 1, f_err);
f29b25a3 103 }
e3cedca7 104}
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105
106const char *log_get_level(int level)
107{
108 static const char *levels[] = { "Unknown", "Debug", "Info", "Error",
109 "Unknown" };
110
111 if (level >= FIO_LOG_NR)
112 level = FIO_LOG_NR;
113
114 return levels[level];
115}