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758 lines (576 loc) · 21.7 KB
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/**
* Copyright (c) 2007-2012, 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.
*
* @file logfile_sub_source.hh
*/
#ifndef logfile_sub_source_hh
#define logfile_sub_source_hh
#include <array>
#include <utility>
#include <vector>
#include <limits.h>
#include "base/time_util.hh"
#include "big_array.hh"
#include "bookmarks.hh"
#include "document.sections.hh"
#include "filter_observer.hh"
#include "log_format.hh"
#include "logfile.hh"
#include "strong_int.hh"
#include "textview_curses.hh"
STRONG_INT_TYPE(uint64_t, content_line);
struct sqlite3_stmt;
extern "C"
{
int sqlite3_finalize(sqlite3_stmt* pStmt);
}
class logfile_sub_source;
class index_delegate {
public:
virtual ~index_delegate() = default;
virtual void index_start(logfile_sub_source& lss) {}
virtual void index_line(logfile_sub_source& lss,
logfile* lf,
logfile::iterator ll)
{
}
virtual void index_complete(logfile_sub_source& lss) {}
};
class sql_filter : public text_filter {
public:
sql_filter(logfile_sub_source& lss,
std::string stmt_str,
sqlite3_stmt* stmt)
: text_filter(EXCLUDE, filter_lang_t::SQL, std::move(stmt_str), 0),
sf_log_source(lss)
{
this->sf_filter_stmt = stmt;
}
bool matches(std::optional<line_source> ls,
const shared_buffer_ref& line) override;
std::string to_command() const override;
auto_mem<sqlite3_stmt> sf_filter_stmt{sqlite3_finalize};
logfile_sub_source& sf_log_source;
};
class log_location_history : public location_history {
public:
explicit log_location_history(logfile_sub_source& lss)
: llh_history(std::begin(this->llh_backing),
std::end(this->llh_backing)),
llh_log_source(lss)
{
}
~log_location_history() override = default;
void loc_history_append(vis_line_t top) override;
std::optional<vis_line_t> loc_history_back(vis_line_t current_top) override;
std::optional<vis_line_t> loc_history_forward(
vis_line_t current_top) override;
private:
nonstd::ring_span<content_line_t> llh_history;
logfile_sub_source& llh_log_source;
content_line_t llh_backing[MAX_SIZE];
};
class logline_window;
/**
* Delegate class that merges the contents of multiple log files into a single
* source of data for a text view.
*/
class logfile_sub_source
: public text_sub_source
, public text_time_translator
, public text_accel_source
, public list_input_delegate
, public text_anchors
, public text_delegate
, public text_detail_provider
, public lnav_config_listener {
public:
const static bookmark_type_t BM_FILES;
virtual void text_filters_changed();
logfile_sub_source();
~logfile_sub_source() = default;
enum class line_context_t : uint8_t {
filename,
basename,
none,
time_column,
};
void increase_line_context();
bool decrease_line_context();
size_t get_filename_offset() const;
line_context_t get_line_context() const { return this->lss_line_context; }
void set_force_rebuild() { this->lss_force_rebuild = true; }
bool is_rebuild_forced() const { return this->lss_force_rebuild; }
bool list_input_handle_key(listview_curses& lv, const ncinput& ch);
void set_marked_only(bool val)
{
if (this->lss_marked_only != val) {
this->lss_marked_only = val;
this->text_filters_changed();
}
}
void update_filter_hash_state(hasher& h) const;
bool get_marked_only() { return this->lss_marked_only; }
size_t text_line_count() { return this->lss_filtered_index.size(); }
size_t text_line_width(textview_curses& curses)
{
return this->lss_longest_line;
}
size_t file_count() const;
bool empty() const { return this->lss_filtered_index.empty(); }
line_info text_value_for_line(textview_curses& tc,
int row,
std::string& value_out,
line_flags_t flags);
void text_attrs_for_line(textview_curses& tc,
int row,
string_attrs_t& value_out);
size_t text_size_for_line(textview_curses& tc, int row, line_flags_t flags);
void text_mark(const bookmark_type_t* bm, vis_line_t line, bool added);
void text_clear_marks(const bookmark_type_t* bm);
bool insert_file(const std::shared_ptr<logfile>& lf);
void remove_file(std::shared_ptr<logfile> lf);
enum class rebuild_result {
rr_no_change,
rr_appended_lines,
rr_partial_rebuild,
rr_full_rebuild,
};
rebuild_result rebuild_index(std::optional<ui_clock::time_point> deadline
= std::nullopt);
void text_update_marks(vis_bookmarks& bm);
void set_user_mark(const bookmark_type_t* bm, content_line_t cl)
{
this->lss_user_marks[bm].insert_once(cl);
}
bookmarks<content_line_t>::type& get_user_bookmarks()
{
return this->lss_user_marks;
}
bookmark_metadata& get_bookmark_metadata(content_line_t cl);
bookmark_metadata& get_bookmark_metadata(vis_line_t vl)
{
return this->get_bookmark_metadata(this->at(vl));
}
struct bookmark_metadata_context {
std::optional<vis_line_t> bmc_current;
std::optional<bookmark_metadata*> bmc_current_metadata;
std::optional<vis_line_t> bmc_next_line;
};
bookmark_metadata_context get_bookmark_metadata_context(
vis_line_t vl,
bookmark_metadata::categories desired
= bookmark_metadata::categories::any) const;
std::optional<bookmark_metadata*> find_bookmark_metadata(
content_line_t cl) const;
std::optional<bookmark_metadata*> find_bookmark_metadata(
vis_line_t vl) const
{
if (vl >= vis_line_t(this->lss_filtered_index.size())) {
return std::nullopt;
}
return this->find_bookmark_metadata(this->at(vl));
}
void erase_bookmark_metadata(content_line_t cl);
void erase_bookmark_metadata(vis_line_t vl)
{
this->erase_bookmark_metadata(this->at(vl));
}
void clear_bookmark_metadata();
int get_filtered_count() const
{
return this->lss_index.size() - this->lss_filtered_index.size();
}
int get_filtered_count_for(size_t filter_index) const;
Result<void, lnav::console::user_message> set_sql_filter(
std::string stmt_str, sqlite3_stmt* stmt);
Result<void, lnav::console::user_message> set_sql_marker(
std::string stmt_str, sqlite3_stmt* stmt);
Result<void, lnav::console::user_message> set_preview_sql_filter(
sqlite3_stmt* stmt);
std::string get_sql_filter_text()
{
auto filt = this->get_sql_filter();
if (filt) {
return filt.value()->get_id();
}
return "";
}
std::optional<std::shared_ptr<text_filter>> get_sql_filter();
std::string get_sql_marker_text() const
{
return this->lss_marker_stmt_text;
}
std::shared_ptr<logfile> find(const char* fn, content_line_t& line_base);
std::shared_ptr<logfile> find(content_line_t& line) const
{
std::shared_ptr<logfile> retval;
retval = this->lss_files[line / MAX_LINES_PER_FILE]->get_file();
line = content_line_t(line % MAX_LINES_PER_FILE);
return retval;
}
logfile* find_file_ptr(content_line_t& line) const
{
auto* retval
= this->lss_files[line / MAX_LINES_PER_FILE]->get_file_ptr();
line = content_line_t(line % MAX_LINES_PER_FILE);
return retval;
}
logline* find_line(content_line_t line) const
{
logline* retval = nullptr;
auto lf = this->find_file_ptr(line);
if (lf != nullptr) {
auto ll_iter = lf->begin() + line;
retval = &(*ll_iter);
}
return retval;
}
std::optional<std::pair<std::shared_ptr<logfile>, logfile::iterator>>
find_line_with_file(content_line_t line) const
{
std::shared_ptr<logfile> lf = this->find(line);
if (lf != nullptr) {
auto ll_iter = lf->begin() + line;
return std::make_pair(lf, ll_iter);
}
return std::nullopt;
}
std::optional<std::pair<std::shared_ptr<logfile>, logfile::iterator>>
find_line_with_file(std::optional<vis_line_t> vl) const
{
if (vl && vl.value() >= 0_vl
&& vl.value() < vis_line_t(this->lss_filtered_index.size()))
{
return this->find_line_with_file(this->at(vl.value()));
}
return std::nullopt;
}
std::optional<vis_line_t> find_from_time(const timeval& start) const;
std::optional<vis_line_t> find_from_time(time_t start) const
{
const auto tv = timeval{start, 0};
return this->find_from_time(tv);
}
std::optional<vis_line_t> find_from_time(const exttm& etm) const
{
return this->find_from_time(etm.to_timeval());
}
std::optional<vis_line_t> find_from_content(content_line_t cl);
std::optional<row_info> time_for_row(vis_line_t row)
{
if (row >= 0_vl && row < (ssize_t) this->lss_filtered_index.size()) {
auto cl = this->at(row);
return row_info{
this->find_line(cl)->get_timeval(),
(int64_t) cl,
};
}
return std::nullopt;
}
std::optional<vis_line_t> row_for(const row_info& ri);
std::optional<vis_line_t> row_for_time(struct timeval time_bucket)
{
return this->find_from_time(time_bucket);
}
content_line_t at(vis_line_t vl) const
{
return this->lss_index[this->lss_filtered_index[vl]].value();
}
size_t get_filtered_before() const
{
return this->lss_filtered_index.empty() ? 0
: this->lss_filtered_index[0];
}
size_t get_filtered_after() const
{
if (this->lss_filtered_index.empty()) {
return 0;
}
return this->lss_index.size() - this->lss_filtered_index.back() - 1;
}
content_line_t at_base(vis_line_t vl)
{
while (vl > 0_vl
&& this->find_line(this->at(vl))->get_sub_offset() != 0)
{
--vl;
}
return this->at(vl);
}
std::unique_ptr<logline_window> window_at(vis_line_t start_vl,
vis_line_t end_vl);
std::unique_ptr<logline_window> window_at(vis_line_t start_vl);
std::unique_ptr<logline_window> window_to_end(vis_line_t start_vl);
/**
* Container for logfile references that keeps of how many lines in the
* logfile have been indexed.
*/
struct logfile_data {
logfile_data(size_t index,
filter_stack& fs,
const std::shared_ptr<logfile>& lf)
: ld_file_index(index), ld_filter_state(fs, lf),
ld_visible(lf->is_indexing())
{
lf->set_logline_observer(&this->ld_filter_state);
this->ld_file_ptr = lf.get();
}
void clear()
{
this->ld_filter_state.lfo_filter_state.clear();
this->ld_file_ptr = nullptr;
}
void set_file(const std::shared_ptr<logfile>& lf)
{
this->ld_filter_state.lfo_filter_state.tfs_logfile = lf;
this->ld_file_ptr = lf.get();
this->ld_lines_indexed = 0;
this->ld_lines_watched = 0;
this->ld_visible = lf->is_indexing();
lf->set_logline_observer(&this->ld_filter_state);
}
std::shared_ptr<logfile> get_file() const
{
return this->ld_filter_state.lfo_filter_state.tfs_logfile;
}
logfile* get_file_ptr() const { return this->ld_file_ptr; }
bool is_visible() const
{
return this->get_file_ptr() != nullptr && this->ld_visible;
}
void set_visibility(bool vis) { this->ld_visible = vis; }
size_t ld_file_index;
line_filter_observer ld_filter_state;
size_t ld_lines_indexed{0};
size_t ld_lines_watched{0};
logfile* ld_file_ptr{nullptr};
bool ld_visible;
};
using iterator = std::vector<std::unique_ptr<logfile_data>>::iterator;
using const_iterator
= std::vector<std::unique_ptr<logfile_data>>::const_iterator;
size_t size() const { return this->lss_files.size(); }
iterator begin() { return this->lss_files.begin(); }
iterator end() { return this->lss_files.end(); }
const_iterator cbegin() const { return this->lss_files.begin(); }
const_iterator cend() const { return this->lss_files.end(); }
iterator find_data(content_line_t& line)
{
auto retval = this->lss_files.begin();
std::advance(retval, line / MAX_LINES_PER_FILE);
line = content_line_t(line % MAX_LINES_PER_FILE);
return retval;
}
iterator find_data(content_line_t line, uint64_t& offset_out)
{
auto retval = this->lss_files.begin();
std::advance(retval, line / MAX_LINES_PER_FILE);
offset_out = line % MAX_LINES_PER_FILE;
return retval;
}
std::optional<logfile_data*> find_data(const std::shared_ptr<logfile>& lf)
{
for (auto& ld : *this) {
if (ld->ld_filter_state.lfo_filter_state.tfs_logfile == lf) {
return ld.get();
}
}
return std::nullopt;
}
iterator find_data_i(const std::shared_ptr<const logfile>& lf)
{
for (auto iter = this->begin(); iter != this->end(); ++iter) {
if ((*iter)->ld_filter_state.lfo_filter_state.tfs_logfile == lf) {
return iter;
}
}
return this->end();
}
content_line_t get_file_base_content_line(iterator iter)
{
ssize_t index = std::distance(this->begin(), iter);
return content_line_t(index * MAX_LINES_PER_FILE);
}
void set_index_delegate(index_delegate* id)
{
if (id != this->lss_index_delegate) {
this->lss_index_delegate = id;
this->reload_index_delegate();
}
}
index_delegate* get_index_delegate() const
{
return this->lss_index_delegate;
}
void reload_index_delegate();
class meta_grepper
: public grep_proc_source<vis_line_t>
, public grep_proc_sink<vis_line_t> {
public:
meta_grepper(logfile_sub_source& source) : lmg_source(source) {}
std::optional<line_info> grep_value_for_line(
vis_line_t line, std::string& value_out) override;
vis_line_t grep_initial_line(vis_line_t start,
vis_line_t highest) override;
void grep_next_line(vis_line_t& line) override;
void grep_begin(grep_proc<vis_line_t>& gp,
vis_line_t start,
vis_line_t stop) override;
void grep_end(grep_proc<vis_line_t>& gp) override;
void grep_match(grep_proc<vis_line_t>& gp, vis_line_t line) override;
logfile_sub_source& lmg_source;
bool lmg_done{false};
};
std::optional<
std::pair<grep_proc_source<vis_line_t>*, grep_proc_sink<vis_line_t>*>>
get_grepper();
std::optional<location_history*> get_location_history()
{
return &this->lss_location_history;
}
void text_crumbs_for_line(int line, std::vector<breadcrumb::crumb>& crumbs);
bool text_handle_mouse(textview_curses& tc,
const listview_curses::display_line_content_t&,
mouse_event& me);
Result<bool, lnav::console::user_message> eval_sql_filter(
sqlite3_stmt* stmt, iterator ld, logfile::const_iterator ll);
void invalidate_sql_filter();
void set_line_meta_changed() { this->lss_line_meta_changed = true; }
bool is_line_meta_changed() const { return this->lss_line_meta_changed; }
void set_exec_context(exec_context* ec) { this->lss_exec_context = ec; }
exec_context* get_exec_context() const { return this->lss_exec_context; }
static constexpr uint64_t MAX_CONTENT_LINES = 1ULL << 40;
static constexpr uint64_t MAX_LINES_PER_FILE = 1ULL << 27;
static constexpr uint64_t MAX_FILES
= (MAX_CONTENT_LINES / MAX_LINES_PER_FILE);
std::function<void(logfile_sub_source&, file_off_t, file_size_t)>
lss_sorting_observer;
uint32_t lss_index_generation{0};
void quiesce();
struct __attribute__((__packed__)) indexed_content {
enum class level_t : uint8_t {
normal,
warning,
error,
};
static level_t level_from_log(const logfile::iterator iter)
{
if (!iter->is_message()) {
return level_t::normal;
}
switch (iter->get_msg_level()) {
case log_level_t::LEVEL_WARNING:
return level_t::warning;
case log_level_t::LEVEL_ERROR:
case log_level_t::LEVEL_FATAL:
case log_level_t::LEVEL_CRITICAL:
return level_t::error;
default:
return level_t::normal;
}
}
indexed_content() = default;
indexed_content(content_line_t cl, const logfile::iterator iter)
: ic_value(cl),
ic_level(lnav::enums::to_underlying(level_from_log(iter)))
{
}
content_line_t value() const { return content_line_t(this->ic_value); }
level_t level() const { return static_cast<level_t>(this->ic_level); }
uint64_t ic_value : 38;
uint8_t ic_level : 2;
};
big_array<indexed_content> lss_index;
std::optional<vis_line_t> row_for_anchor(const std::string& id);
std::optional<vis_line_t> adjacent_anchor(vis_line_t vl, direction dir);
std::optional<std::string> anchor_for_row(vis_line_t vl);
std::unordered_set<std::string> get_anchors();
std::optional<json_string> text_row_details(const textview_curses& tc);
void reload_config(error_reporter& reporter);
bool is_indexing_in_progress() const
{
return this->lss_indexing_in_progress;
}
void clear_preview();
void add_commands_for_session(
const std::function<void(const std::string&)>& receiver);
std::vector<highlighter> lss_highlighters;
protected:
void text_accel_display_changed() { this->clear_line_size_cache(); }
logline* text_accel_get_line(vis_line_t vl)
{
return this->find_line(this->at(vl));
}
private:
static const size_t LINE_SIZE_CACHE_SIZE = 512;
void clear_line_size_cache()
{
this->lss_line_size_cache.fill(std::make_pair(0, 0));
this->lss_line_size_cache[0].first = -1;
}
bool check_extra_filters(iterator ld, logfile::iterator ll);
size_t lss_basename_width = 0;
size_t lss_filename_width = 0;
line_context_t lss_line_context{line_context_t::none};
bool lss_force_rebuild{false};
std::vector<std::unique_ptr<logfile_data>> lss_files;
unsigned int lss_all_timestamp_flags{0};
std::vector<uint32_t> lss_filtered_index;
auto_mem<sqlite3_stmt> lss_preview_filter_stmt{sqlite3_finalize};
bookmarks<content_line_t>::type lss_user_marks{
bookmarks<content_line_t>::create_array()};
auto_mem<sqlite3_stmt> lss_marker_stmt{sqlite3_finalize};
std::string lss_marker_stmt_text;
line_flags_t lss_token_flags{0};
iterator lss_token_file_data;
std::shared_ptr<logfile> lss_token_file;
attr_line_t lss_token_al;
lnav::document::metadata lss_token_meta;
int lss_token_meta_line{-1};
int lss_token_meta_size{0};
size_t lss_time_column_size{0};
size_t lss_time_column_padding{0};
logline_value_vector lss_token_values;
int lss_token_shift_start{0};
int lss_token_shift_size{0};
shared_buffer lss_share_manager;
logfile::iterator lss_token_line;
std::array<std::pair<int, size_t>, LINE_SIZE_CACHE_SIZE>
lss_line_size_cache;
bool lss_marked_only{false};
index_delegate* lss_index_delegate{nullptr};
size_t lss_longest_line{0};
meta_grepper lss_meta_grepper;
log_location_history lss_location_history;
exec_context* lss_exec_context{nullptr};
bool lss_in_value_for_line{false};
bool lss_line_meta_changed{false};
bool lss_indexing_in_progress{false};
};
#endif
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