X-Git-Url: https://git.lttng.org/?p=lttngtop.git;a=blobdiff_plain;f=src%2Fcputop.c;fp=src%2Fcputop.c;h=2ade0db7cbeff18c58348ec77645e620891de94c;hp=0000000000000000000000000000000000000000;hb=37010c3c1a006bf7f3181a1746751c99645ad4bb;hpb=1fc22eb45fde328b82aa5a5e296fdc086e77a32e

diff --git a/src/cputop.c b/src/cputop.c
new file mode 100644
index 0000000..2ade0db
--- /dev/null
+++ b/src/cputop.c
@@ -0,0 +1,146 @@
+/*
+ * Copyright (C) 2011 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., 59 Temple Place - Suite 330, Boston,
+ * MA 02111-1307, USA.
+ */
+
+#include <babeltrace/babeltrace.h>
+
+#include "lttngtoptypes.h"
+#include "common.h"
+#include "cputop.h"
+
+void update_cputop_data(unsigned long timestamp, int64_t cpu, int prev_pid,
+		int next_pid, char *prev_comm, char *next_comm)
+{
+	struct cputime *tmpcpu;
+	unsigned long elapsed;
+
+	tmpcpu = get_cpu(cpu);
+
+	if (tmpcpu->current_task && tmpcpu->current_task->pid == prev_pid) {
+		elapsed = timestamp - tmpcpu->task_start;
+		tmpcpu->current_task->totalcpunsec += elapsed;
+		tmpcpu->current_task->threadstotalcpunsec += elapsed;
+		if (tmpcpu->current_task->pid != tmpcpu->current_task->tid)
+			tmpcpu->current_task->threadparent->threadstotalcpunsec += elapsed;
+	}
+
+	if (next_pid != 0)
+		tmpcpu->current_task = get_proc(&lttngtop, next_pid, next_comm, timestamp);
+	else
+		tmpcpu->current_task = NULL;
+
+	tmpcpu->task_start = timestamp;
+}
+
+enum bt_cb_ret handle_sched_switch(struct bt_ctf_event *call_data,
+		void *private_data)
+{
+	struct definition *scope;
+	unsigned long timestamp;
+	uint64_t cpu_id;
+	char *prev_comm, *next_comm;
+	int prev_tid, next_tid;
+
+	timestamp = bt_ctf_get_timestamp(call_data);
+	if (timestamp == -1ULL)
+		goto error;
+
+	scope = bt_ctf_get_top_level_scope(call_data,
+			BT_EVENT_FIELDS);
+	prev_comm = bt_ctf_get_char_array(bt_ctf_get_field(call_data,
+				scope, "_prev_comm"));
+	if (bt_ctf_field_get_error()) {
+		fprintf(stderr, "Missing prev_comm context info\n");
+		goto error;
+	}
+
+	next_comm = bt_ctf_get_char_array(bt_ctf_get_field(call_data,
+				scope, "_next_comm"));
+	if (bt_ctf_field_get_error()) {
+		fprintf(stderr, "Missing next_comm context info\n");
+		goto error;
+	}
+
+	prev_tid = bt_ctf_get_int64(bt_ctf_get_field(call_data,
+				scope, "_prev_tid"));
+	if (bt_ctf_field_get_error()) {
+		fprintf(stderr, "Missing prev_tid context info\n");
+		goto error;
+	}
+
+	next_tid = bt_ctf_get_int64(bt_ctf_get_field(call_data,
+				scope, "_next_tid"));
+	if (bt_ctf_field_get_error()) {
+		fprintf(stderr, "Missing next_tid context info\n");
+		goto error;
+	}
+
+	scope = bt_ctf_get_top_level_scope(call_data,
+			BT_STREAM_PACKET_CONTEXT);
+	cpu_id = bt_ctf_get_uint64(bt_ctf_get_field(call_data,
+				scope, "cpu_id"));
+	if (bt_ctf_field_get_error()) {
+		fprintf(stderr, "Missing cpu_id context info\n");
+		goto error;
+	}
+
+	update_cputop_data(timestamp, cpu_id, prev_tid, next_tid,
+			prev_comm, next_comm);
+
+	return BT_CB_OK;
+
+error:
+	return BT_CB_ERROR_STOP;
+}
+
+enum bt_cb_ret handle_sched_process_free(struct bt_ctf_event *call_data,
+		void *private_data)
+{
+	struct definition *scope;
+	unsigned long timestamp;
+	char *comm;
+	int tid;
+
+	timestamp = bt_ctf_get_timestamp(call_data);
+	if (timestamp == -1ULL)
+		goto error;
+
+	scope = bt_ctf_get_top_level_scope(call_data,
+			BT_EVENT_FIELDS);
+	comm = bt_ctf_get_char_array(bt_ctf_get_field(call_data,
+				scope, "_comm"));
+	if (bt_ctf_field_get_error()) {
+		fprintf(stderr, "Missing procname context info\n");
+		goto error;
+	}
+
+	tid = bt_ctf_get_int64(bt_ctf_get_field(call_data,
+				scope, "_tid"));
+	if (bt_ctf_field_get_error()) {
+		fprintf(stderr, "Missing tid context info\n");
+		goto error;
+	}
+
+	death_proc(&lttngtop, tid, comm, timestamp);
+
+	return BT_CB_OK;
+
+error:
+	return BT_CB_ERROR_STOP;
+
+}
+