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 * 23 */ 24 #ifndef SHARE_VM_LOGGING_LOGPREFIX_HPP 25 #define SHARE_VM_LOGGING_LOGPREFIX_HPP 26 27 #include "gc/shared/gcId.hpp" 28 #include "logging/logTag.hpp" 29 30 // Prefixes prepend each log message for a specified tagset with the given prefix. 31 // A prefix consists of a format string and a value or callback. Prefixes are added 32 // after the decorations but before the log message. 33 // 34 // List of prefixes for specific tags and/or tagsets. 35 // Syntax: LOG_PREFIX(<printf format>, <value/callback for value>, LOG_TAGS(<chosen log tags>)) 36 #define LOG_PREFIX_LIST // Currently unused/empty 37 38 // The empty prefix, used when there's no prefix defined. 39 template <LogTagType T0, LogTagType T1, LogTagType T2, LogTagType T3, LogTagType T4, LogTagType GuardTag = LogTag::__NO_TAG> 40 struct LogPrefix : public AllStatic { 41 STATIC_ASSERT(GuardTag == LogTag::__NO_TAG); 42 static size_t prefix(char* buf, size_t len) { 43 return 0; 44 } 45 }; 46 47 #define LOG_PREFIX(fmt, fn, ...) \ 48 template <> struct LogPrefix<__VA_ARGS__> { \ 49 static size_t prefix(char* buf, size_t len) { \ 50 int ret = jio_snprintf(buf, len, fmt, fn); \ 51 assert(ret >= 0, \ 52 "Failed to prefix log message using prefix ('%s', '%s'), log buffer too small?", fmt, #fn); \ 53 return ret; \ 54 } \ 55 }; 56 LOG_PREFIX_LIST 57 #undef LOG_PREFIX 58 59 #endif // SHARE_VM_LOGGING_LOGPREFIX_HPP | 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 * 23 */ 24 #ifndef SHARE_VM_LOGGING_LOGPREFIX_HPP 25 #define SHARE_VM_LOGGING_LOGPREFIX_HPP 26 27 #include "gc/shared/gcId.hpp" 28 #include "logging/logTag.hpp" 29 30 // Prefixes prepend each log message for a specified tagset with the given prefix. 31 // A prefix consists of a format string and a value or callback. Prefixes are added 32 // after the decorations but before the log message. 33 // 34 // List of prefixes for specific tags and/or tagsets. 35 // Syntax: LOG_PREFIX(<printf format>, <value/callback for value>, LOG_TAGS(<chosen log tags>)) 36 #define LOG_PREFIX_LIST \ 37 LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc)) \ 38 LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, age)) \ 39 LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, alloc)) \ 40 LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, barrier)) \ 41 LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, compaction)) \ 42 LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, compaction, phases)) \ 43 LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, cpu)) \ 44 LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, ergo)) \ 45 LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, ergo, conc)) \ 46 LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, ergo, cset)) \ 47 LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, ergo, heap)) \ 48 LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, heap)) \ 49 LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, freelist)) \ 50 LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, liveness)) \ 51 LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, metaspace)) \ 52 LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, phases)) \ 53 LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, phases, start)) \ 54 LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, plab)) \ 55 LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, region)) \ 56 LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, remset)) \ 57 LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, ref)) \ 58 LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, ref, start)) \ 59 LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, start)) \ 60 LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, task)) \ 61 LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, task, start)) \ 62 LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, task, stats)) \ 63 LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, task, time)) \ 64 LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, tlab)) 65 66 // The empty prefix, used when there's no prefix defined. 67 template <LogTagType T0, LogTagType T1, LogTagType T2, LogTagType T3, LogTagType T4, LogTagType GuardTag = LogTag::__NO_TAG> 68 struct LogPrefix : public AllStatic { 69 STATIC_ASSERT(GuardTag == LogTag::__NO_TAG); 70 static size_t prefix(char* buf, size_t len) { 71 return 0; 72 } 73 }; 74 75 #define LOG_PREFIX(fn, ...) \ 76 template <> struct LogPrefix<__VA_ARGS__> { \ 77 static size_t prefix(char* buf, size_t len) { \ 78 DEBUG_ONLY(buf[0] = '\0'); \ 79 size_t ret = fn(buf, len); \ 80 assert(ret == strlen(buf), "Length mismatch ret (" SIZE_FORMAT ") != buf length (" SIZE_FORMAT ")", ret, strlen(buf)); \ 81 return ret; \ 82 } \ 83 }; 84 LOG_PREFIX_LIST 85 #undef LOG_PREFIX 86 87 #endif // SHARE_VM_LOGGING_LOGPREFIX_HPP |