struct lttng_ust_lib_ring_buffer_backend_pages {
unsigned long mmap_offset; /* offset of the subbuffer in mmap */
union v_atomic records_commit; /* current records committed count */
union v_atomic records_unread; /* records to read */
unsigned long data_size; /* Amount of data to read from subbuf */
DECLARE_SHMP(char, p); /* Backing memory map */
struct lttng_ust_lib_ring_buffer_backend_pages {
unsigned long mmap_offset; /* offset of the subbuffer in mmap */
union v_atomic records_commit; /* current records committed count */
union v_atomic records_unread; /* records to read */
unsigned long data_size; /* Amount of data to read from subbuf */
DECLARE_SHMP(char, p); /* Backing memory map */
struct lttng_ust_lib_ring_buffer_backend {
/* Array of ring_buffer_backend_subbuffer for writer */
DECLARE_SHMP(struct lttng_ust_lib_ring_buffer_backend_subbuffer, buf_wsb);
struct lttng_ust_lib_ring_buffer_backend {
/* Array of ring_buffer_backend_subbuffer for writer */
DECLARE_SHMP(struct lttng_ust_lib_ring_buffer_backend_subbuffer, buf_wsb);
int cpu; /* This buffer's cpu. -1 if global. */
union v_atomic records_read; /* Number of records read */
unsigned int allocated:1; /* is buffer allocated ? */
int cpu; /* This buffer's cpu. -1 if global. */
union v_atomic records_read; /* Number of records read */
unsigned int allocated:1; /* is buffer allocated ? */
};
struct lttng_ust_lib_ring_buffer_shmp {
DECLARE_SHMP(struct lttng_ust_lib_ring_buffer, shmp); /* Channel per-cpu buffers */
};
};
struct lttng_ust_lib_ring_buffer_shmp {
DECLARE_SHMP(struct lttng_ust_lib_ring_buffer, shmp); /* Channel per-cpu buffers */
};
DECLARE_SHMP(void *, priv_data);/* Client-specific information */
struct lttng_ust_lib_ring_buffer_config config; /* Ring buffer configuration */
char name[NAME_MAX]; /* Channel name */
DECLARE_SHMP(void *, priv_data);/* Client-specific information */
struct lttng_ust_lib_ring_buffer_config config; /* Ring buffer configuration */
char name[NAME_MAX]; /* Channel name */