X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=src%2Flttngtop.c;fp=src%2Flttngtop.c;h=0000000000000000000000000000000000000000;hb=715cf83c121d2aeac7ae030d49ff5a31bd6b9ac5;hp=2ee303a318dccd6028b9994193e3174a1eec377e;hpb=62895477c7e60525e63e9e5117f92b34d467d0e6;p=lttngtop.git

diff --git a/src/lttngtop.c b/src/lttngtop.c
deleted file mode 100644
index 2ee303a..0000000
--- a/src/lttngtop.c
+++ /dev/null
@@ -1,677 +0,0 @@
-/*
- * 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.
- */
-
-#define _GNU_SOURCE
-#include <config.h>
-#include <stdio.h>
-#include <stdint.h>
-#include <babeltrace/babeltrace.h>
-#include <babeltrace/ctf/events.h>
-#include <babeltrace/ctf/callbacks.h>
-#include <babeltrace/ctf/iterator.h>
-#include <fcntl.h>
-#include <pthread.h>
-#include <popt.h>
-#include <stdlib.h>
-#include <ftw.h>
-#include <dirent.h>
-#include <ctype.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#include <string.h>
-#include <errno.h>
-#include <sys/types.h>
-#include <fts.h>
-#include <assert.h>
-
-#include "lttngtoptypes.h"
-#include "cputop.h"
-#include "iostreamtop.h"
-#include "cursesdisplay.h"
-#include "common.h"
-
-#define DEFAULT_FILE_ARRAY_SIZE 1
-
-const char *opt_input_path;
-
-struct lttngtop *copy;
-pthread_t display_thread;
-pthread_t timer_thread;
-
-unsigned long refresh_display = 1 * NSEC_PER_SEC;
-unsigned long last_display_update = 0;
-int quit = 0;
-
-enum {
-	OPT_NONE = 0,
-	OPT_HELP,
-	OPT_LIST,
-	OPT_VERBOSE,
-	OPT_DEBUG,
-	OPT_NAMES,
-};
-
-static struct poptOption long_options[] = {
-	/* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
-	{ "help", 'h', POPT_ARG_NONE, NULL, OPT_HELP, NULL, NULL },
-	{ NULL, 0, 0, NULL, 0, NULL, NULL },
-};
-
-void *refresh_thread(void *p)
-{
-	while (1) {
-		if (quit)
-			return NULL;
-		sem_wait(&pause_sem);
-		sem_post(&pause_sem);
-		sem_post(&timer);
-		sleep(refresh_display/NSEC_PER_SEC);
-	}
-}
-
-void *ncurses_display(void *p)
-{
-	unsigned int current_display_index = 0;
-
-	sem_wait(&bootstrap);
-	/*
-	 * Prevent the 1 second delay when we hit ESC
-	 */
-	ESCDELAY = 0;
-	init_ncurses();
-
-	while (1) {
-		sem_wait(&timer);
-		sem_wait(&goodtodisplay);
-		sem_wait(&pause_sem);
-
-		copy = g_ptr_array_index(copies, current_display_index);
-		assert(copy);
-		display(current_display_index++);
-
-		sem_post(&goodtoupdate);
-		sem_post(&pause_sem);
-
-		if (quit) {
-			reset_ncurses();
-			pthread_exit(0);
-		}
-	}
-}
-
-/*
- * hook on each event to check the timestamp and refresh the display if
- * necessary
- */
-enum bt_cb_ret check_timestamp(struct bt_ctf_event *call_data, void *private_data)
-{
-	unsigned long timestamp;
-
-	timestamp = bt_ctf_get_timestamp(call_data);
-	if (timestamp == -1ULL)
-		goto error;
-
-	if (last_display_update == 0)
-		last_display_update = timestamp;
-
-	if (timestamp - last_display_update >= refresh_display) {
-		sem_wait(&goodtoupdate);
-		g_ptr_array_add(copies, get_copy_lttngtop(last_display_update,
-					timestamp));
-		sem_post(&goodtodisplay);
-		sem_post(&bootstrap);
-		last_display_update = timestamp;
-	}
-	return BT_CB_OK;
-
-error:
-	fprintf(stderr, "check_timestamp callback error\n");
-	return BT_CB_ERROR_STOP;
-}
-
-/*
- * get_perf_counter : get or create and return a perf_counter struct for
- * either a process or a cpu (only one of the 2 parameters mandatory)
- */
-struct perfcounter *get_perf_counter(const char *name, struct processtop *proc,
-		struct cputime *cpu)
-{
-	struct perfcounter *ret;
-	GHashTable *table;
-
-	if (proc)
-		table = proc->perf;
-	else if (cpu)
-		table = cpu->perf;
-	else
-		goto error;
-
-	ret = g_hash_table_lookup(table, (gpointer) name);
-	if (ret)
-		goto end;
-
-	ret = g_new0(struct perfcounter, 1);
-	/* by default, make it visible in the UI */
-	ret->visible = 1;
-	g_hash_table_insert(table, (gpointer) strdup(name), ret);
-
-end:
-	return ret;
-
-error:
-	return NULL;
-}
-
-void update_perf_value(struct processtop *proc, struct cputime *cpu,
-		const char *name, int value)
-{
-	struct perfcounter *cpu_perf, *process_perf;
-
-	cpu_perf = get_perf_counter(name, NULL, cpu);
-	if (cpu_perf->count < value) {
-		process_perf = get_perf_counter(name, proc, NULL);
-		process_perf->count += value - cpu_perf->count;
-		cpu_perf->count = value;
-	}
-}
-
-void extract_perf_counter_scope(const struct bt_ctf_event *event,
-		const struct definition *scope,
-		struct processtop *proc,
-		struct cputime *cpu)
-{
-	struct definition const * const *list = NULL;
-	const struct definition *field;
-	unsigned int count;
-	struct perfcounter *perfcounter;
-	GHashTableIter iter;
-	gpointer key;
-	int ret;
-
-	if (!scope)
-		goto end;
-
-	ret = bt_ctf_get_field_list(event, scope, &list, &count);
-	if (ret < 0)
-		goto end;
-
-	if (count == 0)
-		goto end;
-
-	g_hash_table_iter_init(&iter, global_perf_liszt);
-	while (g_hash_table_iter_next (&iter, &key, (gpointer) &perfcounter)) {
-		field = bt_ctf_get_field(event, scope, (char *) key);
-		if (field) {
-			int value = bt_ctf_get_uint64(field);
-			if (bt_ctf_field_get_error())
-				continue;
-			update_perf_value(proc, cpu, (char *) key, value);
-		}
-	}
-
-end:
-	return;
-}
-
-void update_perf_counter(struct processtop *proc, const struct bt_ctf_event *event)
-{
-	struct cputime *cpu;
-	const struct definition *scope;
-
-	cpu = get_cpu(get_cpu_id(event));
-
-	scope = bt_ctf_get_top_level_scope(event, BT_STREAM_EVENT_CONTEXT);
-	extract_perf_counter_scope(event, scope, proc, cpu);
-
-	scope = bt_ctf_get_top_level_scope(event, BT_STREAM_PACKET_CONTEXT);
-	extract_perf_counter_scope(event, scope, proc, cpu);
-
-	scope = bt_ctf_get_top_level_scope(event, BT_EVENT_CONTEXT);
-	extract_perf_counter_scope(event, scope, proc, cpu);
-}
-
-enum bt_cb_ret fix_process_table(struct bt_ctf_event *call_data,
-		void *private_data)
-{
-	int pid, tid, ppid;
-	char *comm;
-	struct processtop *parent, *child;
-	unsigned long timestamp;
-
-	timestamp = bt_ctf_get_timestamp(call_data);
-	if (timestamp == -1ULL)
-		goto error;
-
-	pid = get_context_pid(call_data);
-	if (pid == -1ULL) {
-		goto error;
-	}
-	tid = get_context_tid(call_data);
-	if (tid == -1ULL) {
-		goto error;
-	}
-	ppid = get_context_ppid(call_data);
-	if (ppid == -1ULL) {
-		goto error;
-	}
-	comm = get_context_comm(call_data);
-	if (!comm) {
-		goto error;
-	}
-
-	/* find or create the current process */
-	child = find_process_tid(&lttngtop, tid, comm);
-	if (!child)
-		child = add_proc(&lttngtop, tid, comm, timestamp);
-	update_proc(child, pid, tid, ppid, comm);
-
-	if (pid != tid) {
-		/* find or create the parent */
-		parent = find_process_tid(&lttngtop, pid, comm);
-		if (!parent) {
-			parent = add_proc(&lttngtop, pid, comm, timestamp);
-			parent->pid = pid;
-		}
-
-		/* attach the parent to the current process */
-		child->threadparent = parent;
-		add_thread(parent, child);
-	}
-
-	update_perf_counter(child, call_data);
-
-	return BT_CB_OK;
-
-error:
-	return BT_CB_ERROR_STOP;
-}
-
-void init_lttngtop()
-{
-	copies = g_ptr_array_new();
-	global_perf_liszt = g_hash_table_new(g_str_hash, g_str_equal);
-
-	sem_init(&goodtodisplay, 0, 0);
-	sem_init(&goodtoupdate, 0, 1);
-	sem_init(&timer, 0, 1);
-	sem_init(&bootstrap, 0, 0);
-	sem_init(&pause_sem, 0, 1);
-	sem_init(&end_trace_sem, 0, 0);
-
-	reset_global_counters();
-	lttngtop.nbproc = 0;
-	lttngtop.nbthreads = 0;
-	lttngtop.nbfiles = 0;
-
-	lttngtop.process_table = g_ptr_array_new();
-	lttngtop.files_table = g_ptr_array_new();
-	lttngtop.cpu_table = g_ptr_array_new();
-}
-
-void usage(FILE *fp)
-{
-	fprintf(fp, "LTTngTop %s\n\n", VERSION);
-	fprintf(fp, "Usage : lttngtop /path/to/trace\n");
-}
-
-/*
- * Return 0 if caller should continue, < 0 if caller should return
- * error, > 0 if caller should exit without reporting error.
- */
-static int parse_options(int argc, char **argv)
-{
-	poptContext pc;
-	int opt, ret = 0;
-
-	if (argc == 1) {
-		usage(stdout);
-		return 1;   /* exit cleanly */
-	}
-
-	pc = poptGetContext(NULL, argc, (const char **) argv, long_options, 0);
-	poptReadDefaultConfig(pc, 0);
-
-	while ((opt = poptGetNextOpt(pc)) != -1) {
-		switch (opt) {
-			case OPT_HELP:
-				usage(stdout);
-				ret = 1;    /* exit cleanly */
-				goto end;
-			default:
-				ret = -EINVAL;
-				goto end;
-		}
-	}
-
-	opt_input_path = poptGetArg(pc);
-	if (!opt_input_path) {
-		ret = -EINVAL;
-		goto end;
-	}
-end:
-	if (pc) {
-		poptFreeContext(pc);
-	}
-	return ret;
-}
-
-void iter_trace(struct bt_context *bt_ctx)
-{
-	struct bt_ctf_iter *iter;
-	struct bt_iter_pos begin_pos;
-	const struct bt_ctf_event *event;
-	int ret = 0;
-
-	begin_pos.type = BT_SEEK_BEGIN;
-	iter = bt_ctf_iter_create(bt_ctx, &begin_pos, NULL);
-
-	/* at each event check if we need to refresh */
-	bt_ctf_iter_add_callback(iter, 0, NULL, 0,
-			check_timestamp,
-			NULL, NULL, NULL);
-	/* at each event, verify the status of the process table */
-	bt_ctf_iter_add_callback(iter, 0, NULL, 0,
-			fix_process_table,
-			NULL, NULL, NULL);
-	/* to handle the scheduling events */
-	bt_ctf_iter_add_callback(iter,
-			g_quark_from_static_string("sched_switch"),
-			NULL, 0, handle_sched_switch, NULL, NULL, NULL);
-	/* to clean up the process table */
-	bt_ctf_iter_add_callback(iter,
-			g_quark_from_static_string("sched_process_free"),
-			NULL, 0, handle_sched_process_free, NULL, NULL, NULL);
-	/* to get all the process from the statedumps */
-	bt_ctf_iter_add_callback(iter,
-			g_quark_from_static_string(
-				"lttng_statedump_process_state"),
-			NULL, 0, handle_statedump_process_state,
-			NULL, NULL, NULL);
-
-	/* for IO top */
-	bt_ctf_iter_add_callback(iter,
-			g_quark_from_static_string("exit_syscall"),
-			NULL, 0, handle_exit_syscall, NULL, NULL, NULL);
-	bt_ctf_iter_add_callback(iter,
-			g_quark_from_static_string("sys_write"),
-			NULL, 0, handle_sys_write, NULL, NULL, NULL);
-	bt_ctf_iter_add_callback(iter,
-			g_quark_from_static_string("sys_read"),
-			NULL, 0, handle_sys_read, NULL, NULL, NULL);
-	bt_ctf_iter_add_callback(iter,
-			g_quark_from_static_string("sys_open"),
-			NULL, 0, handle_sys_open, NULL, NULL, NULL);
-	bt_ctf_iter_add_callback(iter,
-			g_quark_from_static_string("sys_close"),
-			NULL, 0, handle_sys_close, NULL, NULL, NULL);
-	bt_ctf_iter_add_callback(iter,
-			g_quark_from_static_string(
-					"lttng_statedump_file_descriptor"),
-			NULL, 0, handle_statedump_file_descriptor,
-			NULL, NULL, NULL);
-
-	while ((event = bt_ctf_iter_read_event(iter)) != NULL) {
-		ret = bt_iter_next(bt_ctf_get_iter(iter));
-		if (ret < 0)
-			goto end_iter;
-	}
-
-	/* block until quit, we reached the end of the trace */
-	sem_wait(&end_trace_sem);
-
-end_iter:
-	bt_ctf_iter_destroy(iter);
-}
-
-/*
- * bt_context_add_traces_recursive: Open a trace recursively
- * (copied from BSD code in converter/babeltrace.c)
- *
- * Find each trace present in the subdirectory starting from the given
- * path, and add them to the context. The packet_seek parameter can be
- * NULL: this specify to use the default format packet_seek.
- *
- * Return: 0 on success, nonzero on failure.
- * Unable to open toplevel: failure.
- * Unable to open some subdirectory or file: warn and continue;
- */
-int bt_context_add_traces_recursive(struct bt_context *ctx, const char *path,
-		const char *format_str,
-		void (*packet_seek)(struct stream_pos *pos,
-			size_t offset, int whence))
-{
-	FTS *tree;
-	FTSENT *node;
-	GArray *trace_ids;
-	char lpath[PATH_MAX];
-	char * const paths[2] = { lpath, NULL };
-	int ret = -1;
-
-	/*
-	 * Need to copy path, because fts_open can change it.
-	 * It is the pointer array, not the strings, that are constant.
-	 */
-	strncpy(lpath, path, PATH_MAX);
-	lpath[PATH_MAX - 1] = '\0';
-
-	tree = fts_open(paths, FTS_NOCHDIR | FTS_LOGICAL, 0);
-	if (tree == NULL) {
-		fprintf(stderr, "[error] [Context] Cannot traverse \"%s\" for reading.\n",
-				path);
-		return -EINVAL;
-	}
-
-	trace_ids = g_array_new(FALSE, TRUE, sizeof(int));
-
-	while ((node = fts_read(tree))) {
-		int dirfd, metafd;
-
-		if (!(node->fts_info & FTS_D))
-			continue;
-
-		dirfd = open(node->fts_accpath, 0);
-		if (dirfd < 0) {
-			fprintf(stderr, "[error] [Context] Unable to open trace "
-				"directory file descriptor.\n");
-			ret = dirfd;
-			goto error;
-		}
-		metafd = openat(dirfd, "metadata", O_RDONLY);
-		if (metafd < 0) {
-			close(dirfd);
-			ret = -1;
-			continue;
-		} else {
-			int trace_id;
-
-			ret = close(metafd);
-			if (ret < 0) {
-				perror("close");
-				goto error;
-			}
-			ret = close(dirfd);
-			if (ret < 0) {
-				perror("close");
-				goto error;
-			}
-
-			trace_id = bt_context_add_trace(ctx,
-				node->fts_accpath, format_str,
-				packet_seek, NULL, NULL);
-			if (trace_id < 0) {
-				fprintf(stderr, "[warning] [Context] opening trace \"%s\" from %s "
-					"for reading.\n", node->fts_accpath, path);
-				/* Allow to skip erroneous traces. */
-				continue;
-			}
-			g_array_append_val(trace_ids, trace_id);
-		}
-	}
-
-	g_array_free(trace_ids, TRUE);
-	return ret;
-
-error:
-	return ret;
-}
-
-static int check_field_requirements(const struct bt_ctf_field_decl *const * field_list,
-		int field_cnt, int *tid_check, int *pid_check,
-		int *procname_check, int *ppid_check)
-{
-	int j;
-	struct perfcounter *global;
-	const char *name;
-
-	for (j = 0; j < field_cnt; j++) {
-		name = bt_ctf_get_decl_field_name(field_list[j]);
-		if (*tid_check == 0) {
-			if (strncmp(name, "tid", 3) == 0)
-				(*tid_check)++;
-		}
-		if (*pid_check == 0) {
-			if (strncmp(name, "tid", 3) == 0)
-				(*pid_check)++;
-		}
-		if (*ppid_check == 0) {
-			if (strncmp(name, "ppid", 4) == 0)
-				(*ppid_check)++;
-		}
-		if (*procname_check == 0) {
-			if (strncmp(name, "procname", 8) == 0)
-				(*procname_check)++;
-		}
-		if (strncmp(name, "perf_", 5) == 0) {
-			global = g_hash_table_lookup(global_perf_liszt, (gpointer) name);
-			if (!global) {
-				global = g_new0(struct perfcounter, 1);
-				/* by default, sort on the first perf context */
-				if (g_hash_table_size(global_perf_liszt) == 0)
-					global->sort = 1;
-				global->visible = 1;
-				g_hash_table_insert(global_perf_liszt, (gpointer) strdup(name), global);
-			}
-		}
-	}
-
-	if (*tid_check == 1 && *pid_check == 1 && *ppid_check == 1 &&
-			*procname_check == 1)
-		return 0;
-
-	return -1;
-}
-
-/*
- * check_requirements: check if the required context informations are available
- *
- * If each mandatory context information is available for at least in one
- * event, return 0 otherwise return -1.
- */
-int check_requirements(struct bt_context *ctx)
-{
-	unsigned int i, evt_cnt, field_cnt;
-	struct bt_ctf_event_decl *const * evt_list;
-	const struct bt_ctf_field_decl *const * field_list;
-	int tid_check = 0;
-	int pid_check = 0;
-	int procname_check = 0;
-	int ppid_check = 0;
-	int ret = 0;
-
-	bt_ctf_get_event_decl_list(0, ctx, &evt_list, &evt_cnt);
-	for (i = 0; i < evt_cnt; i++) {
-		bt_ctf_get_decl_fields(evt_list[i], BT_STREAM_EVENT_CONTEXT,
-				&field_list, &field_cnt);
-		ret = check_field_requirements(field_list, field_cnt,
-				&tid_check, &pid_check, &procname_check,
-				&ppid_check);
-
-		bt_ctf_get_decl_fields(evt_list[i], BT_EVENT_CONTEXT,
-				&field_list, &field_cnt);
-		ret = check_field_requirements(field_list, field_cnt,
-				&tid_check, &pid_check, &procname_check,
-				&ppid_check);
-
-		bt_ctf_get_decl_fields(evt_list[i], BT_STREAM_PACKET_CONTEXT,
-				&field_list, &field_cnt);
-		ret = check_field_requirements(field_list, field_cnt,
-				&tid_check, &pid_check, &procname_check,
-				&ppid_check);
-	}
-
-	if (tid_check == 0) {
-		ret = -1;
-		fprintf(stderr, "[error] missing tid context information\n");
-	}
-	if (pid_check == 0) {
-		ret = -1;
-		fprintf(stderr, "[error] missing pid context information\n");
-	}
-	if (ppid_check == 0) {
-		ret = -1;
-		fprintf(stderr, "[error] missing ppid context information\n");
-	}
-	if (procname_check == 0) {
-		ret = -1;
-		fprintf(stderr, "[error] missing procname context information\n");
-	}
-
-	return ret;
-}
-
-int main(int argc, char **argv)
-{
-	int ret;
-	struct bt_context *bt_ctx = NULL;
-
-	ret = parse_options(argc, argv);
-	if (ret < 0) {
-		fprintf(stdout, "Error parsing options.\n\n");
-		usage(stdout);
-		exit(EXIT_FAILURE);
-	} else if (ret > 0) {
-		exit(EXIT_SUCCESS);
-	}
-
-	init_lttngtop();
-
-	bt_ctx = bt_context_create();
-	ret = bt_context_add_traces_recursive(bt_ctx, opt_input_path, "ctf", NULL);
-	if (ret < 0) {
-		fprintf(stderr, "[error] Opening the trace\n");
-		goto end;
-	}
-
-	ret = check_requirements(bt_ctx);
-	if (ret < 0) {
-		fprintf(stderr, "[error] some mandatory contexts were missing, exiting.\n");
-		goto end;
-	}
-
-	pthread_create(&display_thread, NULL, ncurses_display, (void *) NULL);
-	pthread_create(&timer_thread, NULL, refresh_thread, (void *) NULL);
-
-	iter_trace(bt_ctx);
-
-	quit = 1;
-	pthread_join(display_thread, NULL);
-	pthread_join(timer_thread, NULL);
-
-end:
-	bt_context_put(bt_ctx);
-	return 0;
-}