2 * Copyright (C) 2011-2012 Julien Desfossez
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License Version 2 as
6 * published by the Free Software Foundation;
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License along
14 * with this program; if not, write to the Free Software Foundation, Inc.,
15 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
22 #include <babeltrace/babeltrace.h>
23 #include <babeltrace/ctf/events.h>
24 #include <babeltrace/ctf/callbacks.h>
25 #include <babeltrace/ctf/iterator.h>
37 #include <sys/types.h>
41 #include <lttng/lttng.h>
42 #include <lttng/lttngtop-helper.h>
44 #include "lttngtoptypes.h"
46 #include "iostreamtop.h"
47 #include "cursesdisplay.h"
50 #define DEFAULT_FILE_ARRAY_SIZE 1
52 const char *opt_input_path
;
54 struct lttngtop
*copy
;
55 pthread_t display_thread
;
56 pthread_t timer_thread
;
58 unsigned long refresh_display
= 1 * NSEC_PER_SEC
;
59 unsigned long last_display_update
= 0;
63 /* list of FDs available for being read with snapshots */
64 struct mmap_stream_list mmap_list
;
65 GPtrArray
*lttng_consumer_stream_array
;
66 int sessiond_metadata
, consumerd_metadata
;
77 static struct poptOption long_options
[] = {
78 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
79 { "help", 'h', POPT_ARG_NONE
, NULL
, OPT_HELP
, NULL
, NULL
},
80 { NULL
, 0, 0, NULL
, 0, NULL
, NULL
},
83 void *refresh_thread(void *p
)
91 sleep(refresh_display
/NSEC_PER_SEC
);
95 void *ncurses_display(void *p
)
97 unsigned int current_display_index
= 0;
101 * Prevent the 1 second delay when we hit ESC
108 sem_wait(&goodtodisplay
);
109 sem_wait(&pause_sem
);
111 copy
= g_ptr_array_index(copies
, current_display_index
);
113 display(current_display_index
++);
115 sem_post(&goodtoupdate
);
116 sem_post(&pause_sem
);
126 * hook on each event to check the timestamp and refresh the display if
129 enum bt_cb_ret
check_timestamp(struct bt_ctf_event
*call_data
, void *private_data
)
131 unsigned long timestamp
;
133 timestamp
= bt_ctf_get_timestamp(call_data
);
134 if (timestamp
== -1ULL)
137 if (last_display_update
== 0)
138 last_display_update
= timestamp
;
140 if (timestamp
- last_display_update
>= refresh_display
) {
141 sem_wait(&goodtoupdate
);
142 g_ptr_array_add(copies
, get_copy_lttngtop(last_display_update
,
144 sem_post(&goodtodisplay
);
145 sem_post(&bootstrap
);
146 last_display_update
= timestamp
;
151 fprintf(stderr
, "check_timestamp callback error\n");
152 return BT_CB_ERROR_STOP
;
156 * get_perf_counter : get or create and return a perf_counter struct for
157 * either a process or a cpu (only one of the 2 parameters mandatory)
159 struct perfcounter
*get_perf_counter(const char *name
, struct processtop
*proc
,
162 struct perfcounter
*ret
;
172 ret
= g_hash_table_lookup(table
, (gpointer
) name
);
176 ret
= g_new0(struct perfcounter
, 1);
177 /* by default, make it visible in the UI */
179 g_hash_table_insert(table
, (gpointer
) strdup(name
), ret
);
188 void update_perf_value(struct processtop
*proc
, struct cputime
*cpu
,
189 const char *name
, int value
)
191 struct perfcounter
*cpu_perf
, *process_perf
;
193 cpu_perf
= get_perf_counter(name
, NULL
, cpu
);
194 if (cpu_perf
->count
< value
) {
195 process_perf
= get_perf_counter(name
, proc
, NULL
);
196 process_perf
->count
+= value
- cpu_perf
->count
;
197 cpu_perf
->count
= value
;
201 void extract_perf_counter_scope(const struct bt_ctf_event
*event
,
202 const struct definition
*scope
,
203 struct processtop
*proc
,
206 struct definition
const * const *list
= NULL
;
207 const struct definition
*field
;
209 struct perfcounter
*perfcounter
;
217 ret
= bt_ctf_get_field_list(event
, scope
, &list
, &count
);
224 g_hash_table_iter_init(&iter
, global_perf_liszt
);
225 while (g_hash_table_iter_next (&iter
, &key
, (gpointer
) &perfcounter
)) {
226 field
= bt_ctf_get_field(event
, scope
, (char *) key
);
228 int value
= bt_ctf_get_uint64(field
);
229 if (bt_ctf_field_get_error())
231 update_perf_value(proc
, cpu
, (char *) key
, value
);
239 void update_perf_counter(struct processtop
*proc
, const struct bt_ctf_event
*event
)
242 const struct definition
*scope
;
244 cpu
= get_cpu(get_cpu_id(event
));
246 scope
= bt_ctf_get_top_level_scope(event
, BT_STREAM_EVENT_CONTEXT
);
247 extract_perf_counter_scope(event
, scope
, proc
, cpu
);
249 scope
= bt_ctf_get_top_level_scope(event
, BT_STREAM_PACKET_CONTEXT
);
250 extract_perf_counter_scope(event
, scope
, proc
, cpu
);
252 scope
= bt_ctf_get_top_level_scope(event
, BT_EVENT_CONTEXT
);
253 extract_perf_counter_scope(event
, scope
, proc
, cpu
);
256 enum bt_cb_ret
fix_process_table(struct bt_ctf_event
*call_data
,
261 struct processtop
*parent
, *child
;
262 unsigned long timestamp
;
264 timestamp
= bt_ctf_get_timestamp(call_data
);
265 if (timestamp
== -1ULL)
268 pid
= get_context_pid(call_data
);
272 tid
= get_context_tid(call_data
);
276 ppid
= get_context_ppid(call_data
);
280 comm
= get_context_comm(call_data
);
285 /* find or create the current process */
286 child
= find_process_tid(<tngtop
, tid
, comm
);
288 child
= add_proc(<tngtop
, tid
, comm
, timestamp
);
289 update_proc(child
, pid
, tid
, ppid
, comm
);
292 /* find or create the parent */
293 parent
= find_process_tid(<tngtop
, pid
, comm
);
295 parent
= add_proc(<tngtop
, pid
, comm
, timestamp
);
299 /* attach the parent to the current process */
300 child
->threadparent
= parent
;
301 add_thread(parent
, child
);
304 update_perf_counter(child
, call_data
);
309 return BT_CB_ERROR_STOP
;
314 copies
= g_ptr_array_new();
315 global_perf_liszt
= g_hash_table_new(g_str_hash
, g_str_equal
);
317 sem_init(&goodtodisplay
, 0, 0);
318 sem_init(&goodtoupdate
, 0, 1);
319 sem_init(&timer
, 0, 1);
320 sem_init(&bootstrap
, 0, 0);
321 sem_init(&pause_sem
, 0, 1);
322 sem_init(&end_trace_sem
, 0, 0);
324 reset_global_counters();
326 lttngtop
.nbthreads
= 0;
327 lttngtop
.nbfiles
= 0;
329 lttngtop
.process_table
= g_ptr_array_new();
330 lttngtop
.files_table
= g_ptr_array_new();
331 lttngtop
.cpu_table
= g_ptr_array_new();
336 fprintf(fp
, "LTTngTop %s\n\n", VERSION
);
337 fprintf(fp
, "Usage : lttngtop /path/to/trace\n");
341 * Return 0 if caller should continue, < 0 if caller should return
342 * error, > 0 if caller should exit without reporting error.
344 static int parse_options(int argc
, char **argv
)
349 pc
= poptGetContext(NULL
, argc
, (const char **) argv
, long_options
, 0);
350 poptReadDefaultConfig(pc
, 0);
352 while ((opt
= poptGetNextOpt(pc
)) != -1) {
356 ret
= 1; /* exit cleanly */
364 opt_input_path
= poptGetArg(pc
);
373 void iter_trace(struct bt_context
*bt_ctx
)
375 struct bt_ctf_iter
*iter
;
376 struct bt_iter_pos begin_pos
;
377 const struct bt_ctf_event
*event
;
380 begin_pos
.type
= BT_SEEK_BEGIN
;
381 iter
= bt_ctf_iter_create(bt_ctx
, &begin_pos
, NULL
);
383 /* at each event check if we need to refresh */
384 bt_ctf_iter_add_callback(iter
, 0, NULL
, 0,
387 /* at each event, verify the status of the process table */
388 bt_ctf_iter_add_callback(iter
, 0, NULL
, 0,
391 /* to handle the scheduling events */
392 bt_ctf_iter_add_callback(iter
,
393 g_quark_from_static_string("sched_switch"),
394 NULL
, 0, handle_sched_switch
, NULL
, NULL
, NULL
);
395 /* to clean up the process table */
396 bt_ctf_iter_add_callback(iter
,
397 g_quark_from_static_string("sched_process_free"),
398 NULL
, 0, handle_sched_process_free
, NULL
, NULL
, NULL
);
399 /* to get all the process from the statedumps */
400 bt_ctf_iter_add_callback(iter
,
401 g_quark_from_static_string(
402 "lttng_statedump_process_state"),
403 NULL
, 0, handle_statedump_process_state
,
407 bt_ctf_iter_add_callback(iter
,
408 g_quark_from_static_string("exit_syscall"),
409 NULL
, 0, handle_exit_syscall
, NULL
, NULL
, NULL
);
410 bt_ctf_iter_add_callback(iter
,
411 g_quark_from_static_string("sys_write"),
412 NULL
, 0, handle_sys_write
, NULL
, NULL
, NULL
);
413 bt_ctf_iter_add_callback(iter
,
414 g_quark_from_static_string("sys_read"),
415 NULL
, 0, handle_sys_read
, NULL
, NULL
, NULL
);
416 bt_ctf_iter_add_callback(iter
,
417 g_quark_from_static_string("sys_open"),
418 NULL
, 0, handle_sys_open
, NULL
, NULL
, NULL
);
419 bt_ctf_iter_add_callback(iter
,
420 g_quark_from_static_string("sys_close"),
421 NULL
, 0, handle_sys_close
, NULL
, NULL
, NULL
);
422 bt_ctf_iter_add_callback(iter
,
423 g_quark_from_static_string(
424 "lttng_statedump_file_descriptor"),
425 NULL
, 0, handle_statedump_file_descriptor
,
428 while ((event
= bt_ctf_iter_read_event(iter
)) != NULL
) {
429 ret
= bt_iter_next(bt_ctf_get_iter(iter
));
434 /* block until quit, we reached the end of the trace */
435 sem_wait(&end_trace_sem
);
438 bt_ctf_iter_destroy(iter
);
442 * bt_context_add_traces_recursive: Open a trace recursively
443 * (copied from BSD code in converter/babeltrace.c)
445 * Find each trace present in the subdirectory starting from the given
446 * path, and add them to the context. The packet_seek parameter can be
447 * NULL: this specify to use the default format packet_seek.
449 * Return: 0 on success, nonzero on failure.
450 * Unable to open toplevel: failure.
451 * Unable to open some subdirectory or file: warn and continue;
453 int bt_context_add_traces_recursive(struct bt_context
*ctx
, const char *path
,
454 const char *format_str
,
455 void (*packet_seek
)(struct stream_pos
*pos
,
456 size_t offset
, int whence
))
461 char lpath
[PATH_MAX
];
462 char * const paths
[2] = { lpath
, NULL
};
466 * Need to copy path, because fts_open can change it.
467 * It is the pointer array, not the strings, that are constant.
469 strncpy(lpath
, path
, PATH_MAX
);
470 lpath
[PATH_MAX
- 1] = '\0';
472 tree
= fts_open(paths
, FTS_NOCHDIR
| FTS_LOGICAL
, 0);
474 fprintf(stderr
, "[error] [Context] Cannot traverse \"%s\" for reading.\n",
479 trace_ids
= g_array_new(FALSE
, TRUE
, sizeof(int));
481 while ((node
= fts_read(tree
))) {
484 if (!(node
->fts_info
& FTS_D
))
487 dirfd
= open(node
->fts_accpath
, 0);
489 fprintf(stderr
, "[error] [Context] Unable to open trace "
490 "directory file descriptor.\n");
494 metafd
= openat(dirfd
, "metadata", O_RDONLY
);
513 trace_id
= bt_context_add_trace(ctx
,
514 node
->fts_accpath
, format_str
,
515 packet_seek
, NULL
, NULL
);
517 fprintf(stderr
, "[warning] [Context] opening trace \"%s\" from %s "
518 "for reading.\n", node
->fts_accpath
, path
);
519 /* Allow to skip erroneous traces. */
522 g_array_append_val(trace_ids
, trace_id
);
526 g_array_free(trace_ids
, TRUE
);
533 static int check_field_requirements(const struct bt_ctf_field_decl
*const * field_list
,
534 int field_cnt
, int *tid_check
, int *pid_check
,
535 int *procname_check
, int *ppid_check
)
538 struct perfcounter
*global
;
541 for (j
= 0; j
< field_cnt
; j
++) {
542 name
= bt_ctf_get_decl_field_name(field_list
[j
]);
543 if (*tid_check
== 0) {
544 if (strncmp(name
, "tid", 3) == 0)
547 if (*pid_check
== 0) {
548 if (strncmp(name
, "tid", 3) == 0)
551 if (*ppid_check
== 0) {
552 if (strncmp(name
, "ppid", 4) == 0)
555 if (*procname_check
== 0) {
556 if (strncmp(name
, "procname", 8) == 0)
559 if (strncmp(name
, "perf_", 5) == 0) {
560 global
= g_hash_table_lookup(global_perf_liszt
, (gpointer
) name
);
562 global
= g_new0(struct perfcounter
, 1);
563 /* by default, sort on the first perf context */
564 if (g_hash_table_size(global_perf_liszt
) == 0)
567 g_hash_table_insert(global_perf_liszt
, (gpointer
) strdup(name
), global
);
572 if (*tid_check
== 1 && *pid_check
== 1 && *ppid_check
== 1 &&
573 *procname_check
== 1)
580 * check_requirements: check if the required context informations are available
582 * If each mandatory context information is available for at least in one
583 * event, return 0 otherwise return -1.
585 int check_requirements(struct bt_context
*ctx
)
587 unsigned int i
, evt_cnt
, field_cnt
;
588 struct bt_ctf_event_decl
*const * evt_list
;
589 const struct bt_ctf_field_decl
*const * field_list
;
592 int procname_check
= 0;
596 bt_ctf_get_event_decl_list(0, ctx
, &evt_list
, &evt_cnt
);
597 for (i
= 0; i
< evt_cnt
; i
++) {
598 bt_ctf_get_decl_fields(evt_list
[i
], BT_STREAM_EVENT_CONTEXT
,
599 &field_list
, &field_cnt
);
600 ret
= check_field_requirements(field_list
, field_cnt
,
601 &tid_check
, &pid_check
, &procname_check
,
604 bt_ctf_get_decl_fields(evt_list
[i
], BT_EVENT_CONTEXT
,
605 &field_list
, &field_cnt
);
606 ret
= check_field_requirements(field_list
, field_cnt
,
607 &tid_check
, &pid_check
, &procname_check
,
610 bt_ctf_get_decl_fields(evt_list
[i
], BT_STREAM_PACKET_CONTEXT
,
611 &field_list
, &field_cnt
);
612 ret
= check_field_requirements(field_list
, field_cnt
,
613 &tid_check
, &pid_check
, &procname_check
,
617 if (tid_check
== 0) {
619 fprintf(stderr
, "[error] missing tid context information\n");
621 if (pid_check
== 0) {
623 fprintf(stderr
, "[error] missing pid context information\n");
625 if (ppid_check
== 0) {
627 fprintf(stderr
, "[error] missing ppid context information\n");
629 if (procname_check
== 0) {
631 fprintf(stderr
, "[error] missing procname context information\n");
637 ssize_t
read_subbuffer(struct lttng_consumer_stream
*kconsumerd_fd
,
638 struct lttng_consumer_local_data
*ctx
)
643 int infd
= helper_get_lttng_consumer_stream_wait_fd(kconsumerd_fd
);
645 if (helper_get_lttng_consumer_stream_output(kconsumerd_fd
) == LTTNG_EVENT_SPLICE
) {
646 /* Get the next subbuffer */
647 printf("get_next : %d\n", infd
);
648 err
= helper_kernctl_get_next_subbuf(infd
);
651 perror("Reserving sub buffer failed (everything is normal, "
652 "it is due to concurrency)");
655 /* read the whole subbuffer */
656 err
= helper_kernctl_get_padded_subbuf_size(infd
, &len
);
659 perror("Getting sub-buffer len failed.");
662 printf("len : %ld\n", len
);
664 /* splice the subbuffer to the tracefile */
665 ret
= helper_lttng_consumer_on_read_subbuffer_splice(ctx
, kconsumerd_fd
, len
);
668 * display the error but continue processing to try
669 * to release the subbuffer
671 fprintf(stderr
,"Error splicing to tracefile\n");
673 printf("ret : %ld\n", ret
);
674 printf("put_next : %d\n", infd
);
675 err
= helper_kernctl_put_next_subbuf(infd
);
678 perror("Reserving sub buffer failed (everything is normal, "
679 "it is due to concurrency)");
682 // sem_post(&metadata_available);
689 int on_update_fd(int key
, uint32_t state
)
691 /* let the lib handle the metadata FD */
692 if (key
== sessiond_metadata
)
697 int on_recv_fd(struct lttng_consumer_stream
*kconsumerd_fd
)
700 struct mmap_stream
*new_info
;
703 printf("Receiving %d\n", helper_get_lttng_consumer_stream_wait_fd(kconsumerd_fd
));
704 /* Opening the tracefile in write mode */
705 if (helper_get_lttng_consumer_stream_path_name(kconsumerd_fd
) != NULL
) {
706 ret
= open(helper_get_lttng_consumer_stream_path_name(kconsumerd_fd
),
707 O_WRONLY
|O_CREAT
|O_TRUNC
, S_IRWXU
|S_IRWXG
|S_IRWXO
);
712 helper_set_lttng_consumer_stream_out_fd(kconsumerd_fd
, ret
);
715 if (helper_get_lttng_consumer_stream_output(kconsumerd_fd
) == LTTNG_EVENT_MMAP
) {
716 new_info
= malloc(sizeof(struct mmap_stream
));
717 new_info
->fd
= helper_get_lttng_consumer_stream_wait_fd(kconsumerd_fd
);
718 bt_list_add(&new_info
->list
, &mmap_list
.head
);
720 /* get the len of the mmap region */
721 ret
= helper_kernctl_get_mmap_len(helper_get_lttng_consumer_stream_wait_fd(kconsumerd_fd
),
725 perror("helper_kernctl_get_mmap_len");
728 helper_set_lttng_consumer_stream_mmap_len(kconsumerd_fd
, tmp_mmap_len
);
729 printf("mmap len : %ld\n", tmp_mmap_len
);
731 helper_set_lttng_consumer_stream_mmap_base(kconsumerd_fd
,
732 mmap(NULL
, helper_get_lttng_consumer_stream_mmap_len(kconsumerd_fd
),
733 PROT_READ
, MAP_PRIVATE
, helper_get_lttng_consumer_stream_wait_fd(kconsumerd_fd
), 0));
734 if (helper_get_lttng_consumer_stream_mmap_base(kconsumerd_fd
) == MAP_FAILED
) {
735 perror("Error mmaping");
740 g_ptr_array_add(lttng_consumer_stream_array
, kconsumerd_fd
);
743 consumerd_metadata
= helper_get_lttng_consumer_stream_wait_fd(kconsumerd_fd
);
744 sessiond_metadata
= helper_get_lttng_consumer_stream_key(kconsumerd_fd
);
753 int setup_consumer(char *command_sock_path
, pthread_t
*threads
,
754 struct lttng_consumer_local_data
*ctx
)
758 ctx
= helper_lttng_consumer_create(HELPER_LTTNG_CONSUMER_KERNEL
,
759 read_subbuffer
, NULL
, on_recv_fd
, on_update_fd
);
763 unlink(command_sock_path
);
764 helper_lttng_consumer_set_command_sock_path(ctx
, command_sock_path
);
765 helper_lttng_consumer_init();
767 /* Create the thread to manage the receive of fd */
768 ret
= pthread_create(&threads
[0], NULL
, helper_lttng_consumer_thread_receive_fds
,
771 perror("pthread_create");
774 /* Create thread to manage the polling/writing of traces */
775 ret
= pthread_create(&threads
[1], NULL
, helper_lttng_consumer_thread_poll_fds
,
778 perror("pthread_create");
786 int setup_live_tracing()
788 struct lttng_domain dom
;
789 struct lttng_channel chan
;
790 char *channel_name
= "mmapchan";
791 struct lttng_consumer_local_data
*ctx
= NULL
;
792 struct lttng_event ev
;
794 char *command_sock_path
= "/tmp/consumerd_sock";
795 static pthread_t threads
[2]; /* recv_fd, poll */
796 struct lttng_event_context kctxpid
, kctxcomm
, kctxppid
, kctxtid
;
797 /* list of snapshots currently not consumed */
798 GPtrArray
*available_snapshots
;
800 struct lttng_handle
*handle
;
802 BT_INIT_LIST_HEAD(&mmap_list
.head
);
804 lttng_consumer_stream_array
= g_ptr_array_new();
806 if ((ret
= setup_consumer(command_sock_path
, threads
, ctx
)) < 0) {
807 fprintf(stderr
,"error setting up consumer\n");
811 available_snapshots
= g_ptr_array_new();
813 /* setup the session */
814 dom
.type
= LTTNG_DOMAIN_KERNEL
;
816 ret
= system("rm -rf /tmp/livesession");
818 if ((ret
= lttng_create_session("test", "/tmp/livesession")) < 0) {
819 fprintf(stderr
,"error creating the session : %s\n",
820 helper_lttcomm_get_readable_code(ret
));
824 if ((handle
= lttng_create_handle("test", &dom
)) == NULL
) {
825 fprintf(stderr
,"error creating handle\n");
829 if ((ret
= lttng_register_consumer(handle
, command_sock_path
)) < 0) {
830 fprintf(stderr
,"error registering consumer : %s\n",
831 helper_lttcomm_get_readable_code(ret
));
835 strcpy(chan
.name
, channel_name
);
836 chan
.attr
.overwrite
= 1;
837 // chan.attr.subbuf_size = 32768;
838 chan
.attr
.subbuf_size
= 1048576; /* 1MB */
839 chan
.attr
.num_subbuf
= 4;
840 chan
.attr
.switch_timer_interval
= 0;
841 chan
.attr
.read_timer_interval
= 200;
842 chan
.attr
.output
= LTTNG_EVENT_MMAP
;
844 if ((ret
= lttng_enable_channel(handle
, &chan
)) < 0) {
845 fprintf(stderr
,"error creating channel : %s\n", helper_lttcomm_get_readable_code(ret
));
849 sprintf(ev
.name
, "sched_switch");
850 ev
.type
= LTTNG_EVENT_TRACEPOINT
;
852 //if ((ret = lttng_enable_event(handle, NULL, channel_name)) < 0) {
853 if ((ret
= lttng_enable_event(handle
, &ev
, channel_name
)) < 0) {
854 fprintf(stderr
,"error enabling event : %s\n", helper_lttcomm_get_readable_code(ret
));
858 kctxpid
.ctx
= LTTNG_EVENT_CONTEXT_PID
;
859 lttng_add_context(handle
, &kctxpid
, NULL
, NULL
);
860 kctxppid
.ctx
= LTTNG_EVENT_CONTEXT_PPID
;
861 lttng_add_context(handle
, &kctxppid
, NULL
, NULL
);
862 kctxcomm
.ctx
= LTTNG_EVENT_CONTEXT_PROCNAME
;
863 lttng_add_context(handle
, &kctxcomm
, NULL
, NULL
);
864 kctxtid
.ctx
= LTTNG_EVENT_CONTEXT_TID
;
865 lttng_add_context(handle
, &kctxtid
, NULL
, NULL
);
867 if ((ret
= lttng_start_tracing("test")) < 0) {
868 fprintf(stderr
,"error starting tracing : %s\n", helper_lttcomm_get_readable_code(ret
));
872 helper_kernctl_buffer_flush(consumerd_metadata
);
875 lttng_stop_tracing("test");
876 lttng_destroy_session("test");
878 /* block until metadata is ready */
879 //sem_init(&metadata_available, 0, 0);
887 int main(int argc
, char **argv
)
890 struct bt_context
*bt_ctx
= NULL
;
892 ret
= parse_options(argc
, argv
);
894 fprintf(stdout
, "Error parsing options.\n\n");
897 } else if (ret
> 0) {
901 if (!opt_input_path
) {
902 printf("live tracing enabled\n");
903 setup_live_tracing();
908 bt_ctx
= bt_context_create();
909 ret
= bt_context_add_traces_recursive(bt_ctx
, opt_input_path
, "ctf", NULL
);
911 fprintf(stderr
, "[error] Opening the trace\n");
915 ret
= check_requirements(bt_ctx
);
917 fprintf(stderr
, "[error] some mandatory contexts were missing, exiting.\n");
920 pthread_create(&display_thread
, NULL
, ncurses_display
, (void *) NULL
);
921 pthread_create(&timer_thread
, NULL
, refresh_thread
, (void *) NULL
);
926 pthread_join(display_thread
, NULL
);
927 pthread_join(timer_thread
, NULL
);
932 bt_context_put(bt_ctx
);