Move libconsumer under common/consumer/

[lttng-tools.git] / src / common / consumer / consumer-timer.h

diff --git a/src/common/consumer/consumer-timer.h b/src/common/consumer/consumer-timer.h
new file mode 100644 (file)
index 0000000..22e7457
--- /dev/null
+++ b/src/common/consumer/consumer-timer.h
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2011 - Julien Desfossez <julien.desfossez@polymtl.ca>
+ *                      Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *               2012 - David Goulet <dgoulet@efficios.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2 only,
+ * 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.
+ */
+
+#ifndef CONSUMER_TIMER_H
+#define CONSUMER_TIMER_H
+
+#include <pthread.h>
+
+#include "consumer.h"
+
+#define LTTNG_CONSUMER_SIG_SWITCH      SIGRTMIN + 10
+#define LTTNG_CONSUMER_SIG_TEARDOWN    SIGRTMIN + 11
+#define LTTNG_CONSUMER_SIG_LIVE                SIGRTMIN + 12
+
+#define CLOCKID CLOCK_MONOTONIC
+
+/*
+ * Handle timer teardown race wrt memory free of private data by consumer
+ * signals are handled by a single thread, which permits a synchronization
+ * point between handling of each signal. Internal lock ensures mutual
+ * exclusion.
+ */
+struct timer_signal_data {
+       pthread_t tid;  /* thread id managing signals */
+       int setup_done;
+       int qs_done;
+       pthread_mutex_t lock;
+};
+
+void consumer_timer_switch_start(struct lttng_consumer_channel *channel,
+               unsigned int switch_timer_interval);
+void consumer_timer_switch_stop(struct lttng_consumer_channel *channel);
+void consumer_timer_live_start(struct lttng_consumer_channel *channel,
+               int live_timer_interval);
+void consumer_timer_live_stop(struct lttng_consumer_channel *channel);
+void *consumer_timer_thread(void *data);
+int consumer_signal_init(void);
+
+int consumer_flush_kernel_index(struct lttng_consumer_stream *stream);
+int consumer_flush_ust_index(struct lttng_consumer_stream *stream);
+
+#endif /* CONSUMER_TIMER_H */