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lnav/src/lnav.hh

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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 lnav.hh
*/
#ifndef __lnav_hh
#define __lnav_hh
#include "config.h"
#include <signal.h>
#include <map>
#include <set>
#include <list>
#include <stack>
#include <memory>
#include "byte_array.hh"
#include "grapher.hh"
#include "logfile.hh"
#include "hist_source.hh"
#include "statusview_curses.hh"
#include "listview_curses.hh"
#include "top_status_source.hh"
#include "bottom_status_source.hh"
#include "grep_highlighter.hh"
#include "db_sub_source.hh"
#include "textfile_sub_source.hh"
#include "log_vtab_impl.hh"
#include "readline_curses.hh"
#include "xterm_mouse.hh"
#include "piper_proc.hh"
#include "term_extra.hh"
#include "ansi_scrubber.hh"
#include "curl_looper.hh"
#include "papertrail_proc.hh"
/** The command modes that are available while viewing a file. */
typedef enum {
LNM_PAGING,
LNM_COMMAND,
LNM_SEARCH,
LNM_CAPTURE,
LNM_SQL,
} ln_mode_t;
enum {
LNB_SYSLOG,
LNB__MAX,
LNB_TIMESTAMP,
LNB_HELP,
LNB_HEADLESS,
LNB_QUIET,
LNB_ROTATED,
LNB_CHECK_CONFIG,
LNB_INSTALL,
};
/** Flags set on the lnav command-line. */
typedef enum {
LNF_SYSLOG = (1L << LNB_SYSLOG),
LNF_ROTATED = (1L << LNB_ROTATED),
LNF_TIMESTAMP = (1L << LNB_TIMESTAMP),
LNF_HELP = (1L << LNB_HELP),
LNF_HEADLESS = (1L << LNB_HEADLESS),
LNF_QUIET = (1L << LNB_QUIET),
LNF_CHECK_CONFIG = (1L << LNB_CHECK_CONFIG),
LNF_INSTALL = (1L << LNB_INSTALL),
LNF__ALL = (LNF_SYSLOG|LNF_HELP)
} lnav_flags_t;
/** The different views available. */
typedef enum {
LNV_LOG,
LNV_TEXT,
LNV_HELP,
LNV_HISTOGRAM,
LNV_GRAPH,
LNV_DB,
LNV_EXAMPLE,
LNV_SCHEMA,
LNV_PRETTY,
LNV__MAX
} lnav_view_t;
extern const char *lnav_view_strings[LNV__MAX + 1];
extern const char *lnav_zoom_strings[];
/** The status bars. */
typedef enum {
LNS_TOP,
LNS_BOTTOM,
LNS__MAX
} lnav_status_t;
typedef enum {
LG_GRAPH,
LG_CAPTURE,
LG__MAX
} lnav_grep_t;
void sqlite_close_wrapper(void *mem);
typedef std::pair<int, int> ppid_time_pair_t;
typedef std::pair<ppid_time_pair_t, std::string> session_pair_t;
class input_state_tracker : public log_state_dumper {
public:
input_state_tracker() : ist_index(0) {
memset(this->ist_recent_key_presses, 0, sizeof(this->ist_recent_key_presses));
};
void log_state() {
log_info("recent_key_presses: index=%d", this->ist_index);
for (int lpc = 0; lpc < COUNT; lpc++) {
log_msg_extra(" 0x%x (%c)", this->ist_recent_key_presses[lpc],
this->ist_recent_key_presses[lpc]);
}
log_msg_extra_complete();
};
void push_back(int ch) {
this->ist_recent_key_presses[this->ist_index % COUNT] = ch;
this->ist_index = (this->ist_index + 1) % COUNT;
};
private:
static const int COUNT = 10;
int ist_recent_key_presses[COUNT];
size_t ist_index;
};
struct _lnav_data {
std::string ld_session_id;
time_t ld_session_time;
time_t ld_session_load_time;
time_t ld_session_save_time;
std::list<session_pair_t> ld_session_file_names;
int ld_session_file_index;
const char * ld_program_name;
const char * ld_debug_log_name;
std::list<std::string> ld_commands;
std::vector<std::string> ld_config_paths;
std::set<std::pair<std::string, int> > ld_file_names;
std::list<logfile *> ld_files;
std::list<std::string> ld_other_files;
std::set<std::string> ld_closed_files;
std::list<std::pair<std::string, int> > ld_files_to_front;
std::string ld_pt_search;
bool ld_stdout_used;
sig_atomic_t ld_looping;
sig_atomic_t ld_winched;
sig_atomic_t ld_child_terminated;
unsigned long ld_flags;
WINDOW * ld_window;
ln_mode_t ld_mode;
statusview_curses ld_status[LNS__MAX];
top_status_source ld_top_source;
bottom_status_source ld_bottom_source;
listview_curses::action::broadcaster ld_scroll_broadcaster;
time_t ld_top_time;
int ld_top_time_millis;
time_t ld_bottom_time;
int ld_bottom_time_millis;
textview_curses ld_match_view;
std::stack<textview_curses *> ld_view_stack;
textview_curses ld_views[LNV__MAX];
std::auto_ptr<grep_highlighter> ld_search_child[LNV__MAX];
vis_line_t ld_search_start_line;
readline_curses * ld_rl_view;
logfile_sub_source ld_log_source;
hist_source ld_hist_source;
int ld_hist_zoom;
textfile_sub_source ld_text_source;
std::map<textview_curses *, int> ld_last_user_mark;
std::map<textview_curses *, int> ld_select_start;
grapher ld_graph_source;
hist_source ld_db_source;
db_label_source ld_db_rows;
db_overlay_source ld_db_overlay;
std::vector<std::string> ld_db_key_names;
std::auto_ptr<grep_highlighter> ld_grep_child[LG__MAX];
std::string ld_previous_search;
std::string ld_last_search[LNV__MAX];
vis_line_t ld_last_pretty_print_top;
log_vtab_manager * ld_vtab_manager;
auto_mem<sqlite3, sqlite_close_wrapper> ld_db;
std::list<pid_t> ld_children;
std::list<piper_proc *> ld_pipers;
std::auto_ptr<papertrail_proc> ld_pt_proc;
xterm_mouse ld_mouse;
term_extra ld_term_extra;
input_state_tracker ld_input_state;
curl_looper ld_curl_looper;
};
extern struct _lnav_data lnav_data;
extern readline_context::command_map_t lnav_commands;
extern bookmark_type_t BM_QUERY;
extern const int HIST_ZOOM_LEVELS;
#define HELP_MSG_1(x, msg) \
"Press '" ANSI_BOLD(#x) "' " msg
#define HELP_MSG_2(x, y, msg) \
"Press " ANSI_BOLD(#x) "/" ANSI_BOLD(#y) " " msg
void rebuild_hist(size_t old_count, bool force);
void rebuild_indexes(bool force);
bool ensure_view(textview_curses *expected_tc);
bool toggle_view(textview_curses *toggle_tc);
bool setup_logline_table();
void execute_search(lnav_view_t view, const std::string &regex);
void redo_search(lnav_view_t view_index);
bool rescan_files(bool required = false);
vis_line_t next_cluster(
vis_line_t(bookmark_vector<vis_line_t>::*f) (vis_line_t),
bookmark_type_t *bt,
vis_line_t top);
bool moveto_cluster(vis_line_t(bookmark_vector<vis_line_t>::*f) (vis_line_t),
bookmark_type_t *bt,
vis_line_t top);
#endif
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