X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=lttv%2Flttv%2Ftraceset.c;h=10108f3ceb76383f70752834713e9a42714f7470;hb=c73ce169d9ddd488b2dbee4d6062b75814e379e0;hp=0aba1a10d310d3a9a21ef994328af6fa137622dd;hpb=cbb811b3d5b578fa0ffa64a32072f9d8e846cd70;p=lttv.git diff --git a/lttv/lttv/traceset.c b/lttv/lttv/traceset.c index 0aba1a10..10108f3c 100644 --- a/lttv/lttv/traceset.c +++ b/lttv/lttv/traceset.c @@ -22,8 +22,23 @@ #include #include +#include +#include +#include #include +#include #include +#include +#include + +/* To traverse a tree recursively */ +#include +#include +/* For the use of realpath*/ +#include +#include +/* For strcpy*/ +#include /* A trace is a sequence of events gathered in the same tracing session. The events may be stored in several tracefiles in the same directory. @@ -31,31 +46,31 @@ possibly to study the interactions between events in the different traces. */ -struct _LttvTraceset { - char * filename; - GPtrArray *traces; - struct bt_context *context; - LttvAttribute *a; -}; +LttvTraceset *lttv_traceset_new(void) +{ + LttvTraceset *ts; + struct bt_iter_pos begin_pos; -struct _LttvTrace { - LttTrace *t; - LttvAttribute *a; - guint ref_count; -}; + ts = g_new(LttvTraceset, 1); + ts->filename = NULL; + ts->traces = g_ptr_array_new(); + ts->context = bt_context_create(); + ts->a = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); + //TODO remove this when we have really mecanism + //s->tmpState = g_new(LttvTraceState *, 1); + //lttv_trace_state_init(s->tmpState,0); + /*Initialize iterator to the beginning of the traces*/ + begin_pos.type = BT_SEEK_BEGIN; + ts->iter = bt_ctf_iter_create(ts->context, &begin_pos, NULL); -LttvTraceset *lttv_traceset_new() -{ - LttvTraceset *s; + ts->event_hooks = lttv_hooks_new(); - s = g_new(LttvTraceset, 1); - s->filename = NULL; - s->traces = g_ptr_array_new(); - s->context = bt_context_create(); - s->a = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); - return s; + ts->state_trace_handle_index = g_ptr_array_new(); + ts->has_precomputed_states = FALSE; + + return ts; } char * lttv_traceset_name(LttvTraceset * s) @@ -63,18 +78,103 @@ char * lttv_traceset_name(LttvTraceset * s) return s->filename; } -LttvTrace *lttv_trace_new(LttTrace *t) +#ifdef BABEL_CLEANUP +LttvTrace *lttv_trace_new(LttTrace *t) { LttvTrace *new_trace; new_trace = g_new(LttvTrace, 1); new_trace->a = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); - new_trace->t = t; + new_trace->id = t; new_trace->ref_count = 0; return new_trace; } +#endif +/* + * get_absolute_pathname : Return the unique pathname in the system + * + * pathname is the relative path. + * + * abs_pathname is being set to the absolute path. + * + */ +void get_absolute_pathname(const gchar *pathname, gchar * abs_pathname) +{ + abs_pathname[0] = '\0'; + + if (realpath(pathname, abs_pathname) != NULL) + return; + else + { + /* error, return the original path unmodified */ + strcpy(abs_pathname, pathname); + return; + } + return; +} + +/* + * lttv_trace_create : Create a trace from a path + * + * ts is the traceset in which will be contained the trace + * + * path is the path where to find a trace. It is not recursive. + * + * This function is static since a trace should always be contained in a + * traceset. + * + * return the created trace or NULL on failure + */ +static LttvTrace *lttv_trace_create(LttvTraceset *ts, const char *path) +{ + int id = bt_context_add_trace(lttv_traceset_get_context(ts), + path, + "ctf", + NULL, + NULL, + NULL); + if (id < 0) { + return NULL; + } + // Create the trace and save the trace handle id returned by babeltrace + LttvTrace *new_trace; + + new_trace = g_new(LttvTrace, 1); + new_trace->a = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); + new_trace->id = id; + new_trace->ref_count = 0; + new_trace->traceset = ts; + new_trace->state = g_new(LttvTraceState,1); + lttv_trace_state_init(new_trace->state,new_trace); + + /* Add the state to the trace_handle to state index */ + g_ptr_array_set_size(ts->state_trace_handle_index,id+1); + g_ptr_array_index(ts->state_trace_handle_index,id) = new_trace->state; + + return new_trace; +} + +/* + * lttv_trace_create : Create and add a single trace to a traceset + * + * ts is the traceset in which will be contained the trace + * + * path is the path where to find a trace. It is not recursive. + * + * return a positive integer (>=0)on success or -1 on failure + */ +static int lttv_traceset_create_trace(LttvTraceset *ts, const char *path) +{ + LttvTrace *trace = lttv_trace_create(ts, path); + if (trace == NULL) { + return -1; + } + lttv_traceset_add(ts, trace); + return 0; +} + LttvTraceset *lttv_traceset_copy(LttvTraceset *s_orig) { guint i; @@ -84,12 +184,18 @@ LttvTraceset *lttv_traceset_copy(LttvTraceset *s_orig) s = g_new(LttvTraceset, 1); s->filename = NULL; s->traces = g_ptr_array_new(); + s->state_trace_handle_index = g_ptr_array_new(); for(i=0;itraces->len;i++) { trace = g_ptr_array_index(s_orig->traces, i); trace->ref_count++; + /* WARNING: this is an alias, not a copy. */ g_ptr_array_add(s->traces, trace); + + g_ptr_array_set_size(s->state_trace_handle_index,trace->id+1); + g_ptr_array_index(s->state_trace_handle_index,trace->id) = trace->state; + } s->context = s_orig->context; bt_context_get(s->context); @@ -131,6 +237,8 @@ void lttv_traceset_destroy(LttvTraceset *s) for(i=0;itraces->len;i++) { LttvTrace *trace = g_ptr_array_index(s->traces, i); lttv_trace_unref(trace); + // todo mdenis 2012-03-27: uncomment when babeltrace gets fixed + //bt_context_remove_trace(lttv_traceset_get_context(s), trace->id); if(lttv_trace_get_ref_number(trace) == 0) lttv_trace_destroy(trace); } @@ -140,19 +248,108 @@ void lttv_traceset_destroy(LttvTraceset *s) g_free(s); } +struct bt_context *lttv_traceset_get_context(LttvTraceset *s) +{ + return s->context; +} + +LttvTraceset *lttv_trace_get_traceset(LttvTrace *trace) +{ + return trace->traceset; +} + +LttvHooks *lttv_traceset_get_hooks(LttvTraceset *s) +{ + return s->event_hooks; +} + void lttv_trace_destroy(LttvTrace *t) { g_object_unref(t->a); g_free(t); } - void lttv_traceset_add(LttvTraceset *s, LttvTrace *t) { t->ref_count++; g_ptr_array_add(s->traces, t); } +int lttv_traceset_add_path(LttvTraceset *ts, char *trace_path) +{ + FTS *tree; + FTSENT *node; + char * const paths[2] = { trace_path, NULL }; + int ret = -1; + + gboolean metaFileFound = FALSE; + + tree = fts_open(paths, FTS_NOCHDIR | FTS_LOGICAL, 0); + if (tree == NULL) { + g_warning("Cannot traverse \"%s\" for reading.\n", + trace_path); + return ret; + } + + int dirfd, metafd; + while ((node = fts_read(tree))) { + + if (!(node->fts_info & FTS_D)) + continue; + + dirfd = open(node->fts_accpath, 0); + if (dirfd < 0) { + g_warning("Unable to open trace " + "directory file descriptor : %s.", node->fts_accpath); + ret = dirfd; + goto error; + } + + // Check if a metadata file exists in the current directory + metafd = openat(dirfd, "metadata", O_RDONLY); + if (metafd < 0) { + ret = close(dirfd); + if (ret < 0) { + g_warning("Unable to open metadata " + "file descriptor : %s.", node->fts_accpath); + goto error; + } + } else { + ret = close(metafd); + if (ret < 0) { + g_warning("Unable to close metadata " + "file descriptor : %s.", node->fts_accpath); + goto error; + } + ret = close(dirfd); + if (ret < 0) { + g_warning("Unable to close trace " + "directory file descriptor : %s.", node->fts_accpath); + goto error; + } + + ret = lttv_traceset_create_trace(ts, node->fts_accpath); + if (ret < 0) { + g_warning("Opening trace \"%s\" from %s " + "for reading.", node->fts_accpath, trace_path); + goto error; + } + metaFileFound = TRUE; + } + } + +error: + ret = fts_close(tree); + if (ret < 0) { + g_warning("Unable to close tree " + "file descriptor : %s.", trace_path); + } + if(metaFileFound) + return ret; + else + return -1; +} + unsigned lttv_traceset_number(LttvTraceset *s) { @@ -173,6 +370,7 @@ void lttv_traceset_remove(LttvTraceset *s, unsigned i) g_assert(s->traces->len > i); t = (LttvTrace *)s->traces->pdata[i]; t->ref_count--; + bt_context_remove_trace(lttv_traceset_get_context(s), t->id); g_ptr_array_remove_index(s->traces, i); } @@ -192,13 +390,14 @@ LttvAttribute *lttv_trace_attribute(LttvTrace *t) } -LttTrace *lttv_trace(LttvTrace *t) +gint lttv_trace_get_id(LttvTrace *t) { - return t->t; + return t->id; } guint lttv_trace_get_ref_number(LttvTrace * t) { + // todo mdenis: adapt to babeltrace return t->ref_count; } @@ -217,3 +416,301 @@ guint lttv_trace_unref(LttvTrace * t) return t->ref_count; } +guint lttv_trace_get_num_cpu(LttvTrace *t) +{ +#warning "TODO - Set the right number of CPU" + return 24; +} + +LttvTracesetPosition *lttv_traceset_create_current_position(LttvTraceset *traceset) +{ + LttvTracesetPosition *traceset_pos; + + traceset_pos = g_new(LttvTracesetPosition, 1); + + /* Check if the new passed */ + if(traceset_pos == NULL) { + return NULL; + } + + traceset_pos->iter = traceset->iter; + traceset_pos->bt_pos = bt_iter_get_pos(bt_ctf_get_iter(traceset->iter)); + traceset_pos->timestamp = G_MAXUINT64; + traceset_pos->cpu_id = INT_MAX; + + return traceset_pos; +} + +LttvTracesetPosition *lttv_traceset_create_time_position(LttvTraceset *traceset, + LttTime timestamp) +{ + LttvTracesetPosition *traceset_pos; + + traceset_pos = g_new(LttvTracesetPosition, 1); + + /* Check if the new passed */ + if(traceset_pos == NULL) { + return NULL; + } + + traceset_pos->iter = traceset->iter; + traceset_pos->bt_pos = bt_iter_create_time_pos( + bt_ctf_get_iter(traceset_pos->iter), + ltt_time_to_uint64(timestamp)); + traceset_pos->timestamp = G_MAXUINT64; + traceset_pos->cpu_id = INT_MAX; + return traceset_pos; +} + +void lttv_traceset_destroy_position(LttvTracesetPosition *traceset_pos) +{ + bt_iter_free_pos(traceset_pos->bt_pos); + g_free(traceset_pos); +} + +void lttv_traceset_seek_to_position(const LttvTracesetPosition *traceset_pos) +{ + bt_iter_set_pos(bt_ctf_get_iter(traceset_pos->iter), traceset_pos->bt_pos); +} + +guint lttv_traceset_get_cpuid_from_event(LttvEvent *event) +{ + unsigned long timestamp; + unsigned int cpu_id; + + struct bt_ctf_event *ctf_event = event->bt_event; + timestamp = bt_ctf_get_timestamp(ctf_event); + if (timestamp == -1ULL) { + return 0; + } + const struct definition *scope = bt_ctf_get_top_level_scope(ctf_event, BT_STREAM_PACKET_CONTEXT); + if (bt_ctf_field_get_error()) { + return 0; + } + cpu_id = bt_ctf_get_uint64(bt_ctf_get_field(ctf_event, scope, "cpu_id")); + if (bt_ctf_field_get_error()) { + return 0; + } else { + return cpu_id; + } +} + +guint64 lttv_traceset_get_timestamp_first_event(LttvTraceset *ts) +{ + LttvTracesetPosition begin_position; + struct bt_iter_pos pos; + begin_position.bt_pos = &pos; + begin_position.timestamp = G_MAXUINT64; + begin_position.cpu_id = INT_MAX; + + /* Assign iterator to the beginning of the traces */ + begin_position.bt_pos->type = BT_SEEK_BEGIN; + begin_position.iter = ts->iter; + + return lttv_traceset_position_get_timestamp(&begin_position); +} + +/* + * lttv_traceset_get_timestamp_begin : returns the minimum timestamp of + * all the traces in the traceset. + * + */ +guint64 lttv_traceset_get_timestamp_begin(LttvTraceset *traceset) +{ + struct bt_context *bt_ctx; + bt_ctx = lttv_traceset_get_context(traceset); + guint64 timestamp_min, timestamp_cur = 0; + int i; + int trace_count; + LttvTrace *currentTrace; + trace_count = traceset->traces->len; + if(trace_count == 0) + timestamp_min = 0; + else{ + timestamp_min = G_MAXUINT64; + for(i = 0; i < trace_count;i++) + { + currentTrace = g_ptr_array_index(traceset->traces,i); + timestamp_cur = bt_trace_handle_get_timestamp_begin(bt_ctx, + currentTrace->id); + if(timestamp_cur < timestamp_min) + timestamp_min = timestamp_cur; + } + } + return timestamp_min; +} + +/* + * lttv_traceset_get_timestamp_end: returns the maximum timestamp of + * all the traces in the traceset. + * + */ +guint64 lttv_traceset_get_timestamp_end(LttvTraceset *traceset) +{ + struct bt_context *bt_ctx; + bt_ctx = lttv_traceset_get_context(traceset); + guint64 timestamp_max, timestamp_cur = 0; + int i; + int trace_count; + LttvTrace *currentTrace; + trace_count = traceset->traces->len; + + if(trace_count == 0){ + timestamp_max = 1; + } + else{ + timestamp_max = 0; + for(i =0; i < trace_count;i++) + { + currentTrace = g_ptr_array_index(traceset->traces,i); + timestamp_cur = bt_trace_handle_get_timestamp_end(bt_ctx, + currentTrace->id); + if(timestamp_cur > timestamp_max){ + timestamp_max = timestamp_cur; + } + } + } + return timestamp_max; +} +/* + * lttv_traceset_get_time_span_real : return a TimeInterval representing the + * minimum timestamp dans le maximum timestamp of the traceset. + * + */ +TimeInterval lttv_traceset_get_time_span_real(LttvTraceset *ts) +{ + TimeInterval time_span; + time_span.start_time =ltt_time_from_uint64(lttv_traceset_get_timestamp_first_event(ts)); + time_span.end_time = ltt_time_from_uint64(lttv_traceset_get_timestamp_end(ts)); + return time_span; +} + +/* + * lttv_traceset_get_time_span : return a TimeInterval representing the + * minimum timestamp dans le maximum timestamp of the traceset. + * + */ +TimeInterval lttv_traceset_get_time_span(LttvTraceset *ts) +{ + TimeInterval time_span; + time_span.start_time =ltt_time_from_uint64(lttv_traceset_get_timestamp_begin(ts)); + time_span.end_time = ltt_time_from_uint64(lttv_traceset_get_timestamp_end(ts)); + return time_span; +} + +const char *lttv_traceset_get_name_from_event(LttvEvent *event) +{ + return bt_ctf_event_name(event->bt_event); +} + +int set_values_position(const LttvTracesetPosition *pos) +{ + LttvTracesetPosition previous_pos; + previous_pos.iter = pos->iter; + previous_pos.bt_pos = bt_iter_get_pos(bt_ctf_get_iter(pos->iter)); + /* Seek to the new desired position */ + lttv_traceset_seek_to_position(pos); + /*Read the event*/ + struct bt_ctf_event *event = bt_ctf_iter_read_event(pos->iter); + + if(event != NULL){ + ((LttvTracesetPosition *)pos)->timestamp = bt_ctf_get_timestamp_raw(event); + + LttvEvent lttv_event; + lttv_event.bt_event = event; + ((LttvTracesetPosition *)pos)->cpu_id = lttv_traceset_get_cpuid_from_event(<tv_event); + } + else { + /* The event is null */ + return 0; + } + + /* Reassign the previously saved position */ + lttv_traceset_seek_to_position(&previous_pos); + /*We must desallocate because the function bt_iter_get_pos() does a g_new */ + bt_iter_free_pos(previous_pos.bt_pos); +} + +guint64 lttv_traceset_position_get_timestamp(const LttvTracesetPosition *pos) +{ + if(pos->timestamp == G_MAXUINT64){ + if(set_values_position(pos) == 0){ + return 0; + } + } + + return pos->timestamp; +} + +int lttv_traceset_position_get_cpuid(const LttvTracesetPosition *pos){ + if(pos->cpu_id == INT_MAX ){ + if(set_values_position(pos) == 0){ + return 0; + } + } + return pos->cpu_id; +} + +LttTime lttv_traceset_position_get_time(const LttvTracesetPosition *pos) +{ + return ltt_time_from_uint64(lttv_traceset_position_get_timestamp(pos)); +} + + + +int lttv_traceset_position_compare(const LttvTracesetPosition *pos1, const LttvTracesetPosition *pos2) +{ +#warning " TODO :Rename for lttv_traceset_position_equals && Must return COMPARAISON OF THE 2 POSITION && verify if it is the best way to compare position" + if(pos1 == NULL || pos2 == NULL){ + return -1; + } + + guint64 timeStampPos1,timeStampPos2; + guint cpuId1, cpuId2; + + timeStampPos1 = lttv_traceset_position_get_timestamp(pos1); + timeStampPos2 = lttv_traceset_position_get_timestamp(pos2); + + + cpuId1 = lttv_traceset_position_get_cpuid(pos1); + cpuId2 = lttv_traceset_position_get_cpuid(pos2); + + if(timeStampPos1 == timeStampPos2 && cpuId1 == cpuId2){ + return 0; + } + else{ + return 1; + } +} + +int lttv_traceset_position_time_compare(const LttvTracesetPosition *pos1, + const LttvTracesetPosition *pos2) +{ + guint64 timeStampPos1,timeStampPos2; + + timeStampPos1 = lttv_traceset_position_get_timestamp(pos1); + timeStampPos2 = lttv_traceset_position_get_timestamp(pos2); + + return timeStampPos1 - timeStampPos2; +} +int lttv_traceset_position_compare_current(const LttvTraceset *ts, + const LttvTracesetPosition *pos) +{ + int result = 0; + LttvTracesetPosition *curPos = lttv_traceset_create_current_position(ts); + + result = lttv_traceset_position_compare(curPos,pos); + + lttv_traceset_destroy_position(curPos); + + return result; +} + +LttTime lttv_traceset_get_current_time(const LttvTraceset *ts) +{ + LttvTracesetPosition *curPos = lttv_traceset_create_current_position(ts); + guint64 currentTimestamp = lttv_traceset_position_get_timestamp(curPos); + lttv_traceset_destroy_position(curPos); + + return ltt_time_from_uint64(currentTimestamp); +}