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src/share/vm/logging/logStream.cpp

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rev 13113 : imported patch 8181917-refactor-ul-logstream
rev 13114 : imported patch 8181917-refactor-ul-logstream-changes-2
rev 13115 : [mq]: 8181917-refactor-ul-logstream-changes-3

*** 22,34 **** * */ #include "precompiled.hpp" #include "logging/log.hpp" ! #include "logging/logStream.inline.hpp" ! // Create a log stream without an embedded ResourceMark. ! // The function is placed here to be called out-of-line in log.hpp. ! outputStream* create_log_stream(LogLevelType level, LogTagSet* tagset) { ! return new LogStreamNoResourceMark(level, tagset); } --- 22,84 ---- * */ #include "precompiled.hpp" #include "logging/log.hpp" ! #include "logging/logStream.hpp" ! LogStream::LineBuffer::LineBuffer() ! : _buf(_smallbuf), _cap(sizeof(_smallbuf)), _pos(0) ! { ! _buf[0] = '\0'; ! } ! ! LogStream::LineBuffer::~LineBuffer() { ! assert(_pos == 0, "still outstanding bytes in the line buffer"); ! if (_buf != _smallbuf) { ! os::free(_buf); ! } ! } ! ! void LogStream::LineBuffer::ensure_cap(size_t atleast) { ! assert(_cap >= sizeof(_smallbuf), "sanity"); ! if (_cap < atleast) { ! const size_t newcap = MAX2(_cap * 2, atleast * 2); ! char* const newbuf = (char*) os::malloc(newcap, mtLogging); ! if (_pos > 0) { // preserve old content ! memcpy(newbuf, _buf, _pos + 1); // ..including trailing zero ! } ! if (_buf != _smallbuf) { ! os::free(_buf); ! } ! _buf = newbuf; ! _cap = newcap; ! } ! assert(_cap >= atleast, "sanity"); ! } ! ! void LogStream::LineBuffer::append(const char* s, size_t len) { ! assert(_buf[_pos] == '\0', "sanity"); ! ensure_cap(_pos + len + 1); ! assert(_cap >= _pos + len + 1, "sanity"); ! memcpy(_buf + _pos, s, len); ! _pos += len; ! _buf[_pos] = '\0'; ! } ! ! void LogStream::LineBuffer::reset() { ! _pos = 0; ! _buf[_pos] = '\0'; ! } ! ! void LogStream::write(const char* s, size_t len) { ! ! if (len > 0 && s[len - 1] == '\n') { ! _current_line.append(s, len - 1); // omit the newline. ! _log_handle.print("%s", _current_line.ptr()); ! _current_line.reset(); ! } else { ! _current_line.append(s, len); ! } ! update_position(s, len); }
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