1.1 --- a/src/share/vm/gc_interface/gcCause.hpp Tue May 15 22:26:37 2012 +0200
1.2 +++ b/src/share/vm/gc_interface/gcCause.hpp Tue May 15 10:25:06 2012 +0200
1.3 @@ -88,4 +88,36 @@
1.4 static const char* to_string(GCCause::Cause cause);
1.5 };
1.6
1.7 +// Helper class for doing logging that includes the GC Cause
1.8 +// as a string.
1.9 +class GCCauseString : StackObj {
1.10 + private:
1.11 + static const int _length = 128;
1.12 + char _buffer[_length];
1.13 + int _position;
1.14 +
1.15 + public:
1.16 + GCCauseString(const char* prefix, GCCause::Cause cause) {
1.17 + if (PrintGCCause) {
1.18 + _position = jio_snprintf(_buffer, _length, "%s (%s)", prefix, GCCause::to_string(cause));
1.19 + } else {
1.20 + _position = jio_snprintf(_buffer, _length, "%s", prefix);
1.21 + }
1.22 + assert(_position >= 0 && _position <= _length,
1.23 + err_msg("Need to increase the buffer size in GCCauseString? %d", _position));
1.24 + }
1.25 +
1.26 + GCCauseString& append(const char* str) {
1.27 + int res = jio_snprintf(_buffer + _position, _length - _position, "%s", str);
1.28 + _position += res;
1.29 + assert(res >= 0 && _position <= _length,
1.30 + err_msg("Need to increase the buffer size in GCCauseString? %d", res));
1.31 + return *this;
1.32 + }
1.33 +
1.34 + operator const char*() {
1.35 + return _buffer;
1.36 + }
1.37 +};
1.38 +
1.39 #endif // SHARE_VM_GC_INTERFACE_GCCAUSE_HPP
