1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
|
/*
* Copyright (c) 2017 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <config.h>
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <errno.h>
#include <LongBow/runtime.h>
#include <parc/algol/parc_Memory.h>
#include <parc/algol/parc_Object.h>
#include <parc/logging/parc_Log.h>
#include <ccnx/forwarder/metis/core/metis_Logger.h>
#include <ccnx/forwarder/metis/core/metis_Forwarder.h>
struct metis_logger {
PARCClock *clock;
PARCLogReporter *reporter;
PARCLog *loggerArray[MetisLoggerFacility_END];
};
static const struct facility_to_string {
MetisLoggerFacility facility;
const char *string;
} _facilityToString[] = {
{ .facility = MetisLoggerFacility_Config, .string = "Config" },
{ .facility = MetisLoggerFacility_Core, .string = "Core" },
{ .facility = MetisLoggerFacility_IO, .string = "IO" },
{ .facility = MetisLoggerFacility_Message, .string = "Message" },
{ .facility = MetisLoggerFacility_Processor, .string = "Processor" },
{ .facility = 0, .string = NULL }
};
const char *
metisLogger_FacilityString(MetisLoggerFacility facility)
{
for (int i = 0; _facilityToString[i].string != NULL; i++) {
if (_facilityToString[i].facility == facility) {
return _facilityToString[i].string;
}
}
return "Unknown";
}
static void
_allocateLoggers(MetisLogger *logger, PARCLogReporter *reporter)
{
trapUnexpectedStateIf(logger->reporter != NULL, "Trying to allocate a reporter when the previous one is not null");
logger->reporter = parcLogReporter_Acquire(reporter);
char hostname[255];
int gotHostName = gethostname(hostname, 255);
if (gotHostName < 0) {
snprintf(hostname, 255, "unknown");
}
for (int i = 0; i < MetisLoggerFacility_END; i++) {
logger->loggerArray[i] = parcLog_Create(hostname, metisLogger_FacilityString(i), "metis", logger->reporter);
parcLog_SetLevel(logger->loggerArray[i], PARCLogLevel_Error);
}
}
static void
_releaseLoggers(MetisLogger *logger)
{
for (int i = 0; i < MetisLoggerFacility_END; i++) {
parcLog_Release(&logger->loggerArray[i]);
}
parcLogReporter_Release(&logger->reporter);
}
static void
_destroyer(MetisLogger **loggerPtr)
{
MetisLogger *logger = *loggerPtr;
_releaseLoggers(logger);
parcClock_Release(&(*loggerPtr)->clock);
}
parcObject_ExtendPARCObject(MetisLogger, _destroyer, NULL, NULL, NULL, NULL, NULL, NULL);
parcObject_ImplementAcquire(metisLogger, MetisLogger);
parcObject_ImplementRelease(metisLogger, MetisLogger);
MetisLogger *
metisLogger_Create(PARCLogReporter *reporter, const PARCClock *clock)
{
assertNotNull(reporter, "Parameter reporter must be non-null");
assertNotNull(clock, "Parameter clock must be non-null");
MetisLogger *logger = parcObject_CreateAndClearInstance(MetisLogger);
if (logger) {
logger->clock = parcClock_Acquire(clock);
_allocateLoggers(logger, reporter);
}
return logger;
}
void
metisLogger_SetReporter(MetisLogger *logger, PARCLogReporter *reporter)
{
assertNotNull(logger, "Parameter logger must be non-null");
// save the log level state
PARCLogLevel savedLevels[MetisLoggerFacility_END];
for (int i = 0; i < MetisLoggerFacility_END; i++) {
savedLevels[i] = parcLog_GetLevel(logger->loggerArray[i]);
}
_releaseLoggers(logger);
_allocateLoggers(logger, reporter);
// restore log level state
for (int i = 0; i < MetisLoggerFacility_END; i++) {
parcLog_SetLevel(logger->loggerArray[i], savedLevels[i]);
}
}
void
metisLogger_SetClock(MetisLogger *logger, PARCClock *clock)
{
assertNotNull(logger, "Parameter logger must be non-null");
parcClock_Release(&logger->clock);
logger->clock = parcClock_Acquire(clock);
}
static void
_assertInvariants(const MetisLogger *logger, MetisLoggerFacility facility)
{
assertNotNull(logger, "Parameter logger must be non-null");
trapOutOfBoundsIf(facility >= MetisLoggerFacility_END, "Invalid facility %d", facility);
}
void
metisLogger_SetLogLevel(MetisLogger *logger, MetisLoggerFacility facility, PARCLogLevel minimumLevel)
{
_assertInvariants(logger, facility);
PARCLog *log = logger->loggerArray[facility];
parcLog_SetLevel(log, minimumLevel);
}
bool
metisLogger_IsLoggable(const MetisLogger *logger, MetisLoggerFacility facility, PARCLogLevel level)
{
_assertInvariants(logger, facility);
PARCLog *log = logger->loggerArray[facility];
return parcLog_IsLoggable(log, level);
}
void
metisLogger_Log(MetisLogger *logger, MetisLoggerFacility facility, PARCLogLevel level, const char *module, const char *format, ...)
{
if (metisLogger_IsLoggable(logger, facility, level)) {
// this is logged as the messageid
uint64_t logtime = parcClock_GetTime(logger->clock);
// metisLogger_IsLoggable asserted invariants so we know facility is in bounds
PARCLog *log = logger->loggerArray[facility];
va_list va;
va_start(va, format);
parcLog_MessageVaList(log, level, logtime, format, va);
va_end(va);
}
}
|
