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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 17:44:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 17:44:55 +0000 |
commit | 5068d34c08f951a7ea6257d305a1627b09a95817 (patch) | |
tree | 08213e2be853396a3b07ce15dbe222644dcd9a89 /src/filter_observer.cc | |
parent | Initial commit. (diff) | |
download | lnav-5068d34c08f951a7ea6257d305a1627b09a95817.tar.xz lnav-5068d34c08f951a7ea6257d305a1627b09a95817.zip |
Adding upstream version 0.11.1.upstream/0.11.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/filter_observer.cc')
-rw-r--r-- | src/filter_observer.cc | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/src/filter_observer.cc b/src/filter_observer.cc new file mode 100644 index 0000000..0cdaca5 --- /dev/null +++ b/src/filter_observer.cc @@ -0,0 +1,111 @@ +/** + * Copyright (c) 2019, Timothy Stack + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * * Neither the name of Timothy Stack nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "filter_observer.hh" + +#include "config.h" +#include "log_format.hh" + +void +line_filter_observer::logline_new_lines(const logfile& lf, + logfile::const_iterator ll_begin, + logfile::const_iterator ll_end, + shared_buffer_ref& sbr) +{ + size_t offset = std::distance(lf.begin(), ll_begin); + + require(&lf == this->lfo_filter_state.tfs_logfile.get()); + + this->lfo_filter_state.resize(lf.size()); + if (this->lfo_filter_stack.empty()) { + return; + } + + for (; ll_begin != ll_end; ++ll_begin) { + if (lf.get_format() != nullptr) { + lf.get_format()->get_subline(*ll_begin, sbr); + } + for (auto& filter : this->lfo_filter_stack) { + if (filter->lf_deleted) { + continue; + } + if (offset + >= this->lfo_filter_state.tfs_filter_count[filter->get_index()]) + { + filter->add_line(this->lfo_filter_state, ll_begin, sbr); + } + } + } +} + +void +line_filter_observer::logline_eof(const logfile& lf) +{ + for (auto& iter : this->lfo_filter_stack) { + if (iter->lf_deleted) { + continue; + } + iter->end_of_message(this->lfo_filter_state); + } +} + +size_t +line_filter_observer::get_min_count(size_t max) const +{ + size_t retval = max; + + for (auto& filter : this->lfo_filter_stack) { + if (filter->lf_deleted) { + continue; + } + retval = std::min( + retval, + this->lfo_filter_state.tfs_filter_count[filter->get_index()]); + } + + return retval; +} + +void +line_filter_observer::clear_deleted_filter_state() +{ + uint32_t used_mask = 0; + + for (auto& filter : this->lfo_filter_stack) { + if (filter->lf_deleted) { + log_debug("skipping deleted %p %d %d", + filter.get(), + filter->get_index(), + filter->get_lang()); + continue; + } + used_mask |= (1UL << filter->get_index()); + } + this->lfo_filter_state.clear_deleted_filter_state(used_mask); +} |