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[lttng-tools.git]
/
src
/
bin
/
lttng-sessiond
/
consumer.h
diff --git
a/src/bin/lttng-sessiond/consumer.h
b/src/bin/lttng-sessiond/consumer.h
index 7ff3e5dcf70cbe06f28c371480ffd4391eec75a1..27da4e38c2bfa7e70a460e4c61abeec40cd82e0b 100644
(file)
--- a/
src/bin/lttng-sessiond/consumer.h
+++ b/
src/bin/lttng-sessiond/consumer.h
@@
-35,9
+35,10
@@
enum consumer_dst_type {
struct consumer_socket {
/*
* File descriptor. This is just a reference to the consumer data meaning
struct consumer_socket {
/*
* File descriptor. This is just a reference to the consumer data meaning
- * that every access must be locked and check for a possible invalid value.
+ * that every access must be locked and checked for a possible invalid
+ * value.
*/
*/
- int *fd;
+ int *fd
_ptr
;
/*
* To use this socket (send/recv), this lock MUST be acquired.
/*
* To use this socket (send/recv), this lock MUST be acquired.
@@
-94,8
+95,8
@@
struct consumer_data {
/*
* The metadata socket object is handled differently and only created
* locally in this object thus it's the only reference available in the
/*
* The metadata socket object is handled differently and only created
* locally in this object thus it's the only reference available in the
- * session daemon. For that reason, a
static variable for the fd is
- *
required and
the metadata socket fd points to it.
+ * session daemon. For that reason, a
variable for the fd is required and
+ * the metadata socket fd points to it.
*/
int metadata_fd;
struct consumer_socket metadata_sock;
*/
int metadata_fd;
struct consumer_socket metadata_sock;
@@
-104,7
+105,11
@@
struct consumer_data {
char err_unix_sock_path[PATH_MAX];
char cmd_unix_sock_path[PATH_MAX];
char err_unix_sock_path[PATH_MAX];
char cmd_unix_sock_path[PATH_MAX];
- /* communication lock */
+ /*
+ * This lock has two purposes. It protects any change to the consumer
+ * socket and make sure only one thread uses this object for read/write
+ * operations.
+ */
pthread_mutex_t lock;
};
pthread_mutex_t lock;
};
@@
-177,6
+182,10
@@
void consumer_destroy_socket(struct consumer_socket *sock);
int consumer_copy_sockets(struct consumer_output *dst,
struct consumer_output *src);
void consumer_destroy_output_sockets(struct consumer_output *obj);
int consumer_copy_sockets(struct consumer_output *dst,
struct consumer_output *src);
void consumer_destroy_output_sockets(struct consumer_output *obj);
+int consumer_socket_send(struct consumer_socket *socket, void *msg,
+ size_t len);
+int consumer_socket_recv(struct consumer_socket *socket, void *msg,
+ size_t len);
struct consumer_output *consumer_create_output(enum consumer_dst_type type);
struct consumer_output *consumer_copy_output(struct consumer_output *obj);
struct consumer_output *consumer_create_output(enum consumer_dst_type type);
struct consumer_output *consumer_copy_output(struct consumer_output *obj);
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