X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=liblttng-ust%2Fltt-ring-buffer-metadata-client.h;h=7e79b116fa613a672be0efaeb0a2c1987536c762;hb=ef9ff354212ff4b038e1a5b6a7ed0ffe1b949663;hp=4f2620e0a5426441b5aeb9a6e307e80199bfd388;hpb=7a7849896a95db678d916ccb7c5d91371828e3f8;p=lttng-ust.git

diff --git a/liblttng-ust/ltt-ring-buffer-metadata-client.h b/liblttng-ust/ltt-ring-buffer-metadata-client.h
index 4f2620e0..7e79b116 100644
--- a/liblttng-ust/ltt-ring-buffer-metadata-client.h
+++ b/liblttng-ust/ltt-ring-buffer-metadata-client.h
@@ -34,8 +34,7 @@ struct metadata_record_header {
 
 static const struct lttng_ust_lib_ring_buffer_config client_config;
 
-static inline
-u64 lib_ring_buffer_clock_read(struct channel *chan)
+static inline uint64_t lib_ring_buffer_clock_read(struct channel *chan)
 {
 	return 0;
 }
@@ -51,7 +50,7 @@ unsigned char record_header_size(const struct lttng_ust_lib_ring_buffer_config *
 
 #include "../libringbuffer/api.h"
 
-static u64 client_ring_buffer_clock_read(struct channel *chan)
+static uint64_t client_ring_buffer_clock_read(struct channel *chan)
 {
 	return 0;
 }
@@ -77,7 +76,7 @@ static size_t client_packet_header_size(void)
 	return offsetof(struct metadata_packet_header, header_end);
 }
 
-static void client_buffer_begin(struct lttng_ust_lib_ring_buffer *buf, u64 tsc,
+static void client_buffer_begin(struct lttng_ust_lib_ring_buffer *buf, uint64_t tsc,
 				unsigned int subbuf_idx,
 				struct lttng_ust_shm_handle *handle)
 {
@@ -88,10 +87,9 @@ static void client_buffer_begin(struct lttng_ust_lib_ring_buffer *buf, u64 tsc,
 				subbuf_idx * chan->backend.subbuf_size,
 				handle);
 	struct ltt_channel *ltt_chan = channel_get_private(chan);
-	struct ltt_session *session = ltt_chan->session;
 
 	header->magic = TSDL_MAGIC_NUMBER;
-	memcpy(header->uuid, session->uuid, sizeof(session->uuid));
+	memcpy(header->uuid, ltt_chan->uuid, sizeof(ltt_chan->uuid));
 	header->checksum = 0;		/* 0 if unused */
 	header->content_size = 0xFFFFFFFF; /* in bits, for debugging */
 	header->packet_size = 0xFFFFFFFF;  /* in bits, for debugging */
@@ -107,7 +105,7 @@ static void client_buffer_begin(struct lttng_ust_lib_ring_buffer *buf, u64 tsc,
  * offset is assumed to never be 0 here : never deliver a completely empty
  * subbuffer. data_size is between 1 and subbuf_size.
  */
-static void client_buffer_end(struct lttng_ust_lib_ring_buffer *buf, u64 tsc,
+static void client_buffer_end(struct lttng_ust_lib_ring_buffer *buf, uint64_t tsc,
 			      unsigned int subbuf_idx, unsigned long data_size,
 			      struct lttng_ust_shm_handle *handle)
 {
@@ -165,19 +163,28 @@ const struct lttng_ust_lib_ring_buffer_client_cb *LTTNG_CLIENT_CALLBACKS = &clie
 
 static
 struct ltt_channel *_channel_create(const char *name,
-				struct ltt_channel *ltt_chan, void *buf_addr,
+				void *buf_addr,
 				size_t subbuf_size, size_t num_subbuf,
 				unsigned int switch_timer_interval,
 				unsigned int read_timer_interval,
-				int *shm_fd, int *wait_fd,
-				uint64_t *memory_map_size)
+				int **shm_fd, int **wait_fd,
+				uint64_t **memory_map_size,
+				struct ltt_channel *chan_priv_init)
 {
-	ltt_chan->handle = channel_create(&client_config, name, ltt_chan, buf_addr,
-			      subbuf_size, num_subbuf, switch_timer_interval,
-			      read_timer_interval, shm_fd, wait_fd,
-			      memory_map_size);
-	if (!ltt_chan->handle)
+	void *priv;
+	struct ltt_channel *ltt_chan = NULL;
+	struct lttng_ust_shm_handle *handle;
+
+	handle = channel_create(&client_config, name,
+			&priv, __alignof__(*ltt_chan), sizeof(*ltt_chan),
+			chan_priv_init,
+			buf_addr, subbuf_size, num_subbuf,
+			switch_timer_interval, read_timer_interval,
+			shm_fd, wait_fd, memory_map_size);
+	if (!handle)
 		return NULL;
+	ltt_chan = priv;
+	ltt_chan->handle = handle;
 	ltt_chan->chan = shmp(ltt_chan->handle, ltt_chan->handle->chan);
 	return ltt_chan;
 }
@@ -191,8 +198,8 @@ void ltt_channel_destroy(struct ltt_channel *ltt_chan)
 static
 struct lttng_ust_lib_ring_buffer *ltt_buffer_read_open(struct channel *chan,
 					     struct lttng_ust_shm_handle *handle,
-					     int *shm_fd, int *wait_fd,
-					     uint64_t *memory_map_size)
+					     int **shm_fd, int **wait_fd,
+					     uint64_t **memory_map_size)
 {
 	struct lttng_ust_lib_ring_buffer *buf;
 
@@ -276,8 +283,8 @@ static
 int ltt_flush_buffer(struct channel *chan, struct lttng_ust_shm_handle *handle)
 {
 	struct lttng_ust_lib_ring_buffer *buf;
-	int shm_fd, wait_fd;
-	uint64_t memory_map_size;
+	int *shm_fd, *wait_fd;
+	uint64_t *memory_map_size;
 
 	buf = channel_get_ring_buffer(&client_config, chan,
 			0, handle, &shm_fd, &wait_fd,