ust-fd: Add close_range declaration

[lttng-ust.git] / libringbuffer / backend_types.h

diff --git a/libringbuffer/backend_types.h b/libringbuffer/backend_types.h
deleted file mode 100644 (file)
index 3432ef0..0000000
--- a/libringbuffer/backend_types.h
+++ /dev/null
@@ -1,112 +0,0 @@
-#ifndef _LTTNG_RING_BUFFER_BACKEND_TYPES_H
-#define _LTTNG_RING_BUFFER_BACKEND_TYPES_H
-
-/*
- * linux/ringbuffer/backend_types.h
- *
- * Ring buffer backend (types).
- *
- * Copyright (C) 2008-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; only
- * version 2.1 of the License.
- *
- * This library 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <limits.h>
-#include <stdint.h>
-#include "shm_internal.h"
-#include "vatomic.h"
-
-#define RB_BACKEND_PAGES_PADDING       16
-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 */
-       char padding[RB_BACKEND_PAGES_PADDING];
-};
-
-struct lttng_ust_lib_ring_buffer_backend_subbuffer {
-       /* Identifier for subbuf backend pages. Exchanged atomically. */
-       unsigned long id;               /* backend subbuffer identifier */
-};
-
-struct lttng_ust_lib_ring_buffer_backend_counts {
-       /*
-        * Counter specific to the sub-buffer location within the ring buffer.
-        * The actual sequence number of the packet within the entire ring
-        * buffer can be derived from the formula nr_subbuffers * seq_cnt +
-        * subbuf_idx.
-        */
-       uint64_t seq_cnt;               /* packet sequence number */
-};
-
-/*
- * Forward declaration of frontend-specific channel and ring_buffer.
- */
-struct channel;
-struct lttng_ust_lib_ring_buffer;
-
-struct lttng_ust_lib_ring_buffer_backend_pages_shmp {
-       DECLARE_SHMP(struct lttng_ust_lib_ring_buffer_backend_pages, shmp);
-};
-
-#define RB_BACKEND_RING_BUFFER_PADDING         64
-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);
-       /* ring_buffer_backend_subbuffer for reader */
-       struct lttng_ust_lib_ring_buffer_backend_subbuffer buf_rsb;
-       /* Array of lib_ring_buffer_backend_counts for the packet counter */
-       DECLARE_SHMP(struct lttng_ust_lib_ring_buffer_backend_counts, buf_cnt);
-       /*
-        * Pointer array of backend pages, for whole buffer.
-        * Indexed by ring_buffer_backend_subbuffer identifier (id) index.
-        */
-       DECLARE_SHMP(struct lttng_ust_lib_ring_buffer_backend_pages_shmp, array);
-       DECLARE_SHMP(char, memory_map); /* memory mapping */
-
-       DECLARE_SHMP(struct channel, chan);     /* Associated channel */
-       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 ? */
-       char padding[RB_BACKEND_RING_BUFFER_PADDING];
-};
-
-struct lttng_ust_lib_ring_buffer_shmp {
-       DECLARE_SHMP(struct lttng_ust_lib_ring_buffer, shmp); /* Channel per-cpu buffers */
-};
-
-#define RB_BACKEND_CHANNEL_PADDING     64
-struct channel_backend {
-       unsigned long buf_size;         /* Size of the buffer */
-       unsigned long subbuf_size;      /* Sub-buffer size */
-       unsigned int subbuf_size_order; /* Order of sub-buffer size */
-       unsigned int num_subbuf_order;  /*
-                                        * Order of number of sub-buffers/buffer
-                                        * for writer.
-                                        */
-       unsigned int buf_size_order;    /* Order of buffer size */
-       unsigned int extra_reader_sb:1; /* has extra reader subbuffer ? */
-       unsigned long num_subbuf;       /* Number of sub-buffers for writer */
-       uint64_t start_tsc;             /* Channel creation TSC value */
-       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 */
-       char padding[RB_BACKEND_CHANNEL_PADDING];
-       struct lttng_ust_lib_ring_buffer_shmp buf[];
-};
-
-#endif /* _LTTNG_RING_BUFFER_BACKEND_TYPES_H */