Convert LTTngTop to C++ and state system

[lttngtop.git] / src / common.h

/*
 * Copyright (C) 2011-2012 Julien Desfossez
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License Version 2 as
 * published by the Free Software Foundation;
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#ifndef _COMMON_H
#define _COMMON_H

#include <semaphore.h>
extern "C" {
#include <babeltrace/ctf/events.h>
}
#include <state/IntervalHistoryProvider.hpp>
#include <state/StateSystem.hpp>
#include <state/statevalue/StateValue.hpp>
#include <state/statevalue/IntegerStateValue.hpp>
#include <state/statevalue/StringStateValue.hpp>
#include <state/statevalue/NullStateValue.hpp>
#include <state/statevalue/QuarkStateValue.hpp>
#include <sstream>
#include <map>
#include <vector>
#include <set>

#include "lttngtoptypes.h"
#include "cputop.h"

using namespace State;

#define NSEC_PER_USEC 1000
#define NSEC_PER_SEC 1000000000L

extern StateSystem *state_system;
extern std::set<Quark> modified_quarks;
const unsigned long refresh_display = 1 * NSEC_PER_SEC;
extern unsigned long last_display_update;
extern unsigned long first_display_update;

extern sem_t goodtodisplay, goodtoupdate, timer, pause_sem, end_trace_sem, bootstrap;

bool find_process_tid(int tid, Quark &ret_proc_quark);
Quark add_proc(int tid, std::string comm, unsigned long timestamp);
void update_proc(unsigned long timestamp, Quark proc, int pid, int tid,
		 int ppid, char *comm);
void add_thread(unsigned long timestamp, Quark parent, Quark thread);
Quark get_proc(int tid, char *comm, unsigned long timestamp);
Quark get_proc_pid(int pid, int tid, unsigned long timestamp);
void death_proc(int tid, char *comm, unsigned long timestamp);

Quark add_cpu(int cpu, unsigned long timestamp);
Quark get_cpu(int cpu, unsigned long timestamp);
void update_state_on_refresh(unsigned long start, unsigned long end);
Quark get_perf_counter(unsigned long timestamp, Quark root, std::string name);

/* common field access functions */
int get_cpu_id(const struct bt_ctf_event *event);
int get_context_tid(const struct bt_ctf_event *event);
int get_context_pid(const struct bt_ctf_event *event);
int get_context_ppid(const struct bt_ctf_event *event);
char *get_context_comm(const struct bt_ctf_event *event);

enum bt_cb_ret handle_statedump_process_state(
	struct bt_ctf_event *call_data, void *private_data);

std::string path_name_from_cpuid(int cpuid);
std::string thread_path_name_from_tid(int tid);
std::string path_name_from_tid(int tid);
std::string path_name_from_fd(int fd);

void update_file_on_refresh(Quark proc, Quark file, unsigned long end);
void update_proc_on_refresh(Quark proc, unsigned long start, unsigned long end);

void modify_attribute(unsigned long timestamp, const Quark *starting_node,
		      std::string attribute, int value);
void modify_attribute(unsigned long timestamp, const Quark *starting_node,
		      std::string attribute, Quark value);
void modify_attribute(unsigned long timestamp, const Quark *starting_node,
		      std::string attribute, char *value);
void modify_attribute(unsigned long timestamp, const Quark *starting_node,
		      std::string attribute, unsigned long value);
void modify_attribute(unsigned long timestamp, const Quark *starting_node,
		      std::string attribute, std::string value);
void nullify_attribute(unsigned long timestamp, const Quark *starting_node,
		       std::string attribute);
void increment_attribute(unsigned long timestamp, const Quark *starting_node,
			 std::string attribute);
void increase_attribute(unsigned long timestamp, const Quark *starting_node,
			std::string attribute, int amount);
void increase_attribute(unsigned long timestamp, const Quark *starting_node,
			std::string attribute, unsigned long amount);
void decrement_attribute(unsigned long timestamp, const Quark *starting_node,
			 std::string attribute);
void decrease_attribute(unsigned long timestamp, const Quark *starting_node,
			std::string attribute, int amount);
void decrease_attribute(unsigned long timestamp, const Quark *starting_node,
			std::string attribute, unsigned long amount);
bool get_current_attribute_value_int(const Quark *starting_node,
				     std::string attribute, int &value);
bool get_current_attribute_value_ulong(const Quark *starting_node,
				       std::string attribute, unsigned long &value);
bool get_current_attribute_value_quark(const Quark *starting_node,
				       std::string attribute, Quark &value);
bool get_current_attribute_value_string(const Quark *starting_node,
					std::string attribute, std::string &value);
bool get_attribute_value_at_int(unsigned long timestamp,
				const Quark *starting_node,
				std::string attribute,
				int &value);
bool get_attribute_value_at_ulong(unsigned long timestamp,
				  const Quark *starting_node,
				  std::string attribute,
				  unsigned long &value);
bool get_attribute_value_at_quark(unsigned long timestamp,
				  const Quark *starting_node,
				  std::string attribute,
				  Quark &value);
bool get_attribute_value_at_string(unsigned long timestamp,
				   const Quark *starting_node,
				   std::string attribute,
				   std::string &value);
bool get_interval_value_int(unsigned long start,
			    unsigned long end,
			    const Quark *starting_node,
			    std::string attribute,
			    int &value);
bool get_interval_value_ulong(unsigned long start,
			      unsigned long end,
			      const Quark *starting_node,
			      std::string attribute,
			      unsigned long &value);
void add_in_sequence(unsigned long timestamp, Quark item, Quark beg);
void remove_from_sequence(unsigned long timestamp, Quark item, Quark beg);
int get_sequence_length(unsigned long timestamp, Quark beg);
int sequence_to_array(unsigned long timestamp, Quark beg, Quark *arr,
		      int len);
int get_global_perf_list(unsigned long timestamp, Quark *arr, int len);
int get_global_perf_list_size(unsigned long timestamp);
int get_number_of_opened_files(unsigned long timestamp, Quark proc);
int get_opened_files(unsigned long timestamp, Quark proc, Quark *arr, int len);

#endif /* _COMMON_H */