API sync babeltrace
[lttngtop.git] / src / common.c
index d9ec95b33281f07628cece74325414109647fac5..d4f89f3e8970e69e5ef60cf81beebb540727f6fe 100644 (file)
  * 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., 59 Temple Place - Suite 330, Boston,
- * MA 02111-1307, USA.
+ * 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.
  */
 
 #include <babeltrace/ctf/events.h>
 #include <stdlib.h>
+#include <linux/unistd.h>
 #include <string.h>
 #include "common.h"
 
-uint64_t get_cpu_id(struct bt_ctf_event *event)
+uint64_t get_cpu_id(const struct ctf_event_definition *event)
 {
-       struct definition *scope;
+       const struct definition *scope;
        uint64_t cpu_id;
 
        scope = bt_ctf_get_top_level_scope(event, BT_STREAM_PACKET_CONTEXT);
@@ -36,9 +36,9 @@ uint64_t get_cpu_id(struct bt_ctf_event *event)
        return cpu_id;
 }
 
-uint64_t get_context_tid(struct bt_ctf_event *event)
+uint64_t get_context_tid(const struct ctf_event_definition *event)
 {
-       struct definition *scope;
+       const struct definition *scope;
        uint64_t tid;
 
        scope = bt_ctf_get_top_level_scope(event, BT_STREAM_EVENT_CONTEXT);
@@ -52,9 +52,9 @@ uint64_t get_context_tid(struct bt_ctf_event *event)
        return tid;
 }
 
-uint64_t get_context_pid(struct bt_ctf_event *event)
+uint64_t get_context_pid(const struct ctf_event_definition *event)
 {
-       struct definition *scope;
+       const struct definition *scope;
        uint64_t pid;
 
        scope = bt_ctf_get_top_level_scope(event, BT_STREAM_EVENT_CONTEXT);
@@ -68,9 +68,9 @@ uint64_t get_context_pid(struct bt_ctf_event *event)
        return pid;
 }
 
-uint64_t get_context_ppid(struct bt_ctf_event *event)
+uint64_t get_context_ppid(const struct ctf_event_definition *event)
 {
-       struct definition *scope;
+       const struct definition *scope;
        uint64_t ppid;
 
        scope = bt_ctf_get_top_level_scope(event, BT_STREAM_EVENT_CONTEXT);
@@ -84,9 +84,9 @@ uint64_t get_context_ppid(struct bt_ctf_event *event)
        return ppid;
 }
 
-char *get_context_comm(struct bt_ctf_event *event)
+char *get_context_comm(const struct ctf_event_definition *event)
 {
-       struct definition *scope;
+       const struct definition *scope;
        char *comm;
 
        scope = bt_ctf_get_top_level_scope(event, BT_STREAM_EVENT_CONTEXT);
@@ -100,6 +100,12 @@ char *get_context_comm(struct bt_ctf_event *event)
        return comm;
 }
 
+/*
+ * To get the parent process, put the pid in the tid field
+ * because the parent process gets pid = tid
+ *
+ * FIXME : char *comm useful ???
+ */
 struct processtop *find_process_tid(struct lttngtop *ctx, int tid, char *comm)
 {
        gint i;
@@ -126,16 +132,19 @@ struct processtop* add_proc(struct lttngtop *ctx, int tid, char *comm,
                newproc->tid = tid;
                newproc->birth = timestamp;
                newproc->process_files_table = g_ptr_array_new();
-               newproc->files_history = g_new0(struct file_history, 1);
-               newproc->files_history->next = NULL;
+               newproc->files_history = NULL;
                newproc->totalfileread = 0;
                newproc->totalfilewrite = 0;
                newproc->fileread = 0;
                newproc->filewrite = 0;
                newproc->syscall_info = NULL;
+               newproc->threadparent = NULL;
                newproc->threads = g_ptr_array_new();
                newproc->perf = g_hash_table_new(g_str_hash, g_str_equal);
                g_ptr_array_add(ctx->process_table, newproc);
+
+               ctx->nbnewthreads++;
+               ctx->nbthreads++;
        }
        newproc->comm = strdup(comm);
 
@@ -166,8 +175,11 @@ void death_proc(struct lttngtop *ctx, int tid, char *comm,
 {
        struct processtop *tmp;
        tmp = find_process_tid(ctx, tid, comm);
-       if (tmp && strcmp(tmp->comm, comm) == 0)
+       if (tmp && strcmp(tmp->comm, comm) == 0) {
                tmp->death = timestamp;
+               ctx->nbdeadthreads++;
+               ctx->nbthreads--;
+       }
 }
 
 struct processtop* get_proc(struct lttngtop *ctx, int tid, char *comm,
@@ -180,6 +192,16 @@ struct processtop* get_proc(struct lttngtop *ctx, int tid, char *comm,
        return add_proc(ctx, tid, comm, timestamp);
 }
 
+struct processtop *get_proc_pid(struct lttngtop *ctx, int tid, int pid,
+               unsigned long timestamp)
+{
+       struct processtop *tmp;
+       tmp = find_process_tid(ctx, tid, NULL);
+       if (tmp && tmp->pid == pid)
+               return tmp;
+       return add_proc(ctx, tid, "Unknown", timestamp);
+}
+
 void add_thread(struct processtop *parent, struct processtop *thread)
 {
        gint i;
@@ -253,7 +275,7 @@ void reset_perf_counter(gpointer key, gpointer value, gpointer user_data)
 void copy_perf_counter(gpointer key, gpointer value, gpointer new_table)
 {
        struct perfcounter *newperf;
-       
+
        newperf = g_new0(struct perfcounter, 1);
        newperf->count = ((struct perfcounter *) value)->count;
        newperf->visible = ((struct perfcounter *) value)->visible;
@@ -288,11 +310,40 @@ void cleanup_processtop()
                        if (tmpf != NULL) {
                                tmpf->read = 0;
                                tmpf->write = 0;
+
+                               if (tmpf->flag == __NR_close)
+                                       g_ptr_array_index(
+                                               tmp->process_files_table, j
+                                       ) = NULL;
                        }
                }
        }
 }
 
+void reset_global_counters()
+{
+       lttngtop.nbnewproc = 0;
+       lttngtop.nbdeadproc = 0;
+       lttngtop.nbnewthreads = 0;
+       lttngtop.nbdeadthreads = 0;
+       lttngtop.nbnewfiles = 0;
+       lttngtop.nbclosedfiles = 0;
+}
+
+void copy_global_counters(struct lttngtop *dst)
+{
+       dst->nbproc = lttngtop.nbproc;
+       dst->nbnewproc = lttngtop.nbnewproc;
+       dst->nbdeadproc = lttngtop.nbdeadproc;
+       dst->nbthreads = lttngtop.nbthreads;
+       dst->nbnewthreads = lttngtop.nbnewthreads;
+       dst->nbdeadthreads = lttngtop.nbdeadthreads;
+       dst->nbfiles = lttngtop.nbfiles;
+       dst->nbnewfiles = lttngtop.nbnewfiles;
+       dst->nbclosedfiles = lttngtop.nbclosedfiles;
+       reset_global_counters();
+}
+
 struct lttngtop* get_copy_lttngtop(unsigned long start, unsigned long end)
 {
        gint i, j;
@@ -305,6 +356,7 @@ struct lttngtop* get_copy_lttngtop(unsigned long start, unsigned long end)
        dst = g_new0(struct lttngtop, 1);
        dst->start = start;
        dst->end = end;
+       copy_global_counters(dst);
        dst->process_table = g_ptr_array_new();
        dst->files_table = g_ptr_array_new();
        dst->cpu_table = g_ptr_array_new();
@@ -321,6 +373,7 @@ struct lttngtop* get_copy_lttngtop(unsigned long start, unsigned long end)
                new->threads = g_ptr_array_new();
                new->comm = strdup(tmp->comm);
                new->process_files_table = g_ptr_array_new();
+               new->files_history = tmp->files_history;
                new->perf = g_hash_table_new(g_str_hash, g_str_equal);
                g_hash_table_foreach(tmp->perf, copy_perf_counter, new->perf);
 
@@ -352,6 +405,7 @@ struct lttngtop* get_copy_lttngtop(unsigned long start, unsigned long end)
                         * files associated with if after the copy
                         */
                        if (tmp->death > 0 && tmp->death < end) {
+                               /* FIXME : close the files before */
                                g_ptr_array_remove(tmp->process_files_table, tmpfile);
                                g_free(tmpfile);
                        }
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