1 /*
2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
103 Log() {
104 }
105
106 static bool is_level(LogLevelType level) {
107 return LogTagSetMapping<T0, T1, T2, T3, T4>::tagset().is_level(level);
108 }
109
110 template <LogLevelType Level>
111 ATTRIBUTE_PRINTF(1, 2)
112 static void write(const char* fmt, ...) {
113 va_list args;
114 va_start(args, fmt);
115 vwrite<Level>(fmt, args);
116 va_end(args);
117 };
118
119 template <LogLevelType Level>
120 ATTRIBUTE_PRINTF(1, 0)
121 static void vwrite(const char* fmt, va_list args) {
122 char buf[LogBufferSize];
123 size_t prefix_len = LogPrefix<T0, T1, T2, T3, T4>::prefix(buf, sizeof(buf));
124 // Check that string fits in buffer; resize buffer if necessary
125 int ret = os::log_vsnprintf(buf + prefix_len, sizeof(buf) - prefix_len, fmt, args);
126 assert(ret >= 0, "Log message buffer issue");
127 if ((size_t)ret > sizeof(buf)) {
128 size_t newbuf_len = prefix_len + ret + 1;
129 char* newbuf = NEW_C_HEAP_ARRAY(char, newbuf_len, mtLogging);
130 prefix_len = LogPrefix<T0, T1, T2, T3, T4>::prefix(newbuf, newbuf_len);
131 ret = os::log_vsnprintf(newbuf + prefix_len, newbuf_len - prefix_len, fmt, args);
132 assert(ret >= 0, "Log message buffer issue");
133 puts<Level>(newbuf);
134 FREE_C_HEAP_ARRAY(char, newbuf);
135 } else {
136 puts<Level>(buf);
137 }
138 }
139
140 template <LogLevelType Level>
141 static void puts(const char* string) {
142 LogTagSetMapping<T0, T1, T2, T3, T4>::tagset().log(Level, string);
143 }
144
145 #define LOG_LEVEL(level, name) ATTRIBUTE_PRINTF(2, 0) \
146 Log& v##name(const char* fmt, va_list args) { \
147 vwrite<LogLevel::level>(fmt, args); \
148 return *this; \
149 } \
150 Log& name(const char* fmt, ...) ATTRIBUTE_PRINTF(2, 3) { \
151 va_list args; \
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1 /*
2 * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
103 Log() {
104 }
105
106 static bool is_level(LogLevelType level) {
107 return LogTagSetMapping<T0, T1, T2, T3, T4>::tagset().is_level(level);
108 }
109
110 template <LogLevelType Level>
111 ATTRIBUTE_PRINTF(1, 2)
112 static void write(const char* fmt, ...) {
113 va_list args;
114 va_start(args, fmt);
115 vwrite<Level>(fmt, args);
116 va_end(args);
117 };
118
119 template <LogLevelType Level>
120 ATTRIBUTE_PRINTF(1, 0)
121 static void vwrite(const char* fmt, va_list args) {
122 char buf[LogBufferSize];
123 va_list saved_args; // For re-format on buf overflow.
124 va_copy(saved_args, args);
125 size_t prefix_len = LogPrefix<T0, T1, T2, T3, T4>::prefix(buf, sizeof(buf));
126 // Check that string fits in buffer; resize buffer if necessary
127 int ret = os::log_vsnprintf(buf + prefix_len, sizeof(buf) - prefix_len, fmt, args);
128 assert(ret >= 0, "Log message buffer issue");
129 if ((size_t)ret >= sizeof(buf)) {
130 size_t newbuf_len = prefix_len + ret + 1;
131 char* newbuf = NEW_C_HEAP_ARRAY(char, newbuf_len, mtLogging);
132 prefix_len = LogPrefix<T0, T1, T2, T3, T4>::prefix(newbuf, newbuf_len);
133 ret = os::log_vsnprintf(newbuf + prefix_len, newbuf_len - prefix_len, fmt, saved_args);
134 assert(ret >= 0, "Log message buffer issue");
135 puts<Level>(newbuf);
136 FREE_C_HEAP_ARRAY(char, newbuf);
137 } else {
138 puts<Level>(buf);
139 }
140 }
141
142 template <LogLevelType Level>
143 static void puts(const char* string) {
144 LogTagSetMapping<T0, T1, T2, T3, T4>::tagset().log(Level, string);
145 }
146
147 #define LOG_LEVEL(level, name) ATTRIBUTE_PRINTF(2, 0) \
148 Log& v##name(const char* fmt, va_list args) { \
149 vwrite<LogLevel::level>(fmt, args); \
150 return *this; \
151 } \
152 Log& name(const char* fmt, ...) ATTRIBUTE_PRINTF(2, 3) { \
153 va_list args; \
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