*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
*/
#include <babeltrace/types.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
-#include <sys/mman.h>
#include <errno.h>
#include <stdint.h>
#include <unistd.h>
#include <glib.h>
#include <stdio.h>
+#include <inttypes.h>
+#include <babeltrace/mmap-align.h>
+
+#define LAST_OFFSET_POISON ((int64_t) ~0ULL)
struct bt_stream_callbacks;
+struct packet_index_time {
+ uint64_t timestamp_begin;
+ uint64_t timestamp_end;
+};
+
struct packet_index {
off_t offset; /* offset of the packet in the file, in bytes */
- off_t data_offset; /* offset of data within the packet, in bits */
+ int64_t data_offset; /* offset of data within the packet, in bits */
uint64_t packet_size; /* packet size, in bits */
uint64_t content_size; /* content size, in bits */
- uint64_t timestamp_begin;
- uint64_t timestamp_end;
- uint32_t events_discarded;
+ uint64_t events_discarded;
+ uint64_t events_discarded_len; /* length of the field, in bits */
+ struct packet_index_time ts_cycles; /* timestamp in cycles */
+ struct packet_index_time ts_real; /* realtime timestamp */
};
/*
* Always update ctf_stream_pos with ctf_move_pos and ctf_init_pos.
*/
struct ctf_stream_pos {
- struct stream_pos parent;
+ struct bt_stream_pos parent;
int fd; /* backing file fd. -1 if unset. */
+ FILE *index_fp; /* backing index file fp. NULL if unset. */
GArray *packet_index; /* contains struct packet_index */
int prot; /* mmap protection */
int flags; /* mmap flags */
/* Current position */
off_t mmap_offset; /* mmap offset in the file, in bytes */
- size_t packet_size; /* current packet size, in bits */
- size_t content_size; /* current content size, in bits */
- uint32_t *content_size_loc; /* pointer to current content size */
- char *base; /* mmap base address */
- ssize_t offset; /* offset from base, in bits. EOF for end of file. */
- ssize_t last_offset; /* offset before the last read_event */
- size_t cur_index; /* current index in packet index */
- void (*packet_seek)(struct stream_pos *pos, size_t index,
+ off_t mmap_base_offset; /* offset of start of packet in mmap, in bytes */
+ uint64_t packet_size; /* current packet size, in bits */
+ uint64_t content_size; /* current content size, in bits */
+ uint64_t *content_size_loc; /* pointer to current content size */
+ struct mmap_align *base_mma;/* mmap base address */
+ int64_t offset; /* offset from base, in bits. EOF for end of file. */
+ int64_t last_offset; /* offset before the last read_event */
+ int64_t data_offset; /* offset of data in current packet */
+ uint64_t cur_index; /* current index in packet index */
+ uint64_t last_events_discarded; /* last known amount of event discarded */
+ void (*packet_seek)(struct bt_stream_pos *pos, size_t index,
int whence); /* function called to switch packet */
int dummy; /* dummy position, for length calculation */
struct bt_stream_callbacks *cb; /* Callbacks registered for iterator. */
+ void *priv;
};
static inline
-struct ctf_stream_pos *ctf_pos(struct stream_pos *pos)
+struct ctf_stream_pos *ctf_pos(struct bt_stream_pos *pos)
{
return container_of(pos, struct ctf_stream_pos, parent);
}
-int ctf_integer_read(struct stream_pos *pos, struct definition *definition);
-int ctf_integer_write(struct stream_pos *pos, struct definition *definition);
-int ctf_float_read(struct stream_pos *pos, struct definition *definition);
-int ctf_float_write(struct stream_pos *pos, struct definition *definition);
-int ctf_string_read(struct stream_pos *pos, struct definition *definition);
-int ctf_string_write(struct stream_pos *pos, struct definition *definition);
-int ctf_enum_read(struct stream_pos *pos, struct definition *definition);
-int ctf_enum_write(struct stream_pos *pos, struct definition *definition);
-int ctf_struct_rw(struct stream_pos *pos, struct definition *definition);
-int ctf_variant_rw(struct stream_pos *pos, struct definition *definition);
-int ctf_array_read(struct stream_pos *pos, struct definition *definition);
-int ctf_array_write(struct stream_pos *pos, struct definition *definition);
-int ctf_sequence_read(struct stream_pos *pos, struct definition *definition);
-int ctf_sequence_write(struct stream_pos *pos, struct definition *definition);
-
-void ctf_packet_seek(struct stream_pos *pos, size_t index, int whence);
-
-void ctf_init_pos(struct ctf_stream_pos *pos, int fd, int open_flags);
-void ctf_fini_pos(struct ctf_stream_pos *pos);
+BT_HIDDEN
+int ctf_integer_read(struct bt_stream_pos *pos, struct bt_definition *definition);
+BT_HIDDEN
+int ctf_integer_write(struct bt_stream_pos *pos, struct bt_definition *definition);
+BT_HIDDEN
+int ctf_float_read(struct bt_stream_pos *pos, struct bt_definition *definition);
+BT_HIDDEN
+int ctf_float_write(struct bt_stream_pos *pos, struct bt_definition *definition);
+BT_HIDDEN
+int ctf_string_read(struct bt_stream_pos *pos, struct bt_definition *definition);
+BT_HIDDEN
+int ctf_string_write(struct bt_stream_pos *pos, struct bt_definition *definition);
+BT_HIDDEN
+int ctf_enum_read(struct bt_stream_pos *pos, struct bt_definition *definition);
+BT_HIDDEN
+int ctf_enum_write(struct bt_stream_pos *pos, struct bt_definition *definition);
+BT_HIDDEN
+int ctf_struct_rw(struct bt_stream_pos *pos, struct bt_definition *definition);
+BT_HIDDEN
+int ctf_variant_rw(struct bt_stream_pos *pos, struct bt_definition *definition);
+BT_HIDDEN
+int ctf_array_read(struct bt_stream_pos *pos, struct bt_definition *definition);
+BT_HIDDEN
+int ctf_array_write(struct bt_stream_pos *pos, struct bt_definition *definition);
+BT_HIDDEN
+int ctf_sequence_read(struct bt_stream_pos *pos, struct bt_definition *definition);
+BT_HIDDEN
+int ctf_sequence_write(struct bt_stream_pos *pos, struct bt_definition *definition);
+
+void ctf_packet_seek(struct bt_stream_pos *pos, size_t index, int whence);
+
+int ctf_init_pos(struct ctf_stream_pos *pos, struct bt_trace_descriptor *trace,
+ int fd, int open_flags);
+int ctf_fini_pos(struct ctf_stream_pos *pos);
+
+static inline
+int ctf_pos_access_ok(struct ctf_stream_pos *pos, uint64_t bit_len)
+{
+ uint64_t max_len;
+
+ if (unlikely(pos->offset == EOF))
+ return 0;
+ if (pos->prot == PROT_READ) {
+ /*
+ * Reads may only reach up to the "content_size",
+ * regardless of the packet_size.
+ */
+ max_len = pos->content_size;
+ } else {
+ /* Writes may take place up to the end of the packet. */
+ max_len = pos->packet_size;
+ }
+ if (unlikely(pos->offset + bit_len > max_len))
+ return 0;
+ return 1;
+}
/*
* move_pos - move position of a relative bit offset
*
+ * Return 1 if OK, 0 if out-of-bound.
+ *
* TODO: allow larger files by updating base too.
*/
static inline
-void ctf_move_pos(struct ctf_stream_pos *pos, size_t bit_offset)
+int ctf_move_pos(struct ctf_stream_pos *pos, uint64_t bit_offset)
{
- printf_debug("ctf_move_pos test EOF: %zd\n", pos->offset);
- if (unlikely(pos->offset == EOF))
- return;
+ int ret = 0;
- if (pos->fd >= 0) {
- /*
- * PROT_READ ctf_packet_seek is called from within
- * ctf_pos_get_event so end of packet does not change
- * the packet context on for the last event of the
- * packet.
- */
- if ((pos->prot == PROT_WRITE)
- && (unlikely(pos->offset + bit_offset >= pos->packet_size))) {
- printf_debug("ctf_packet_seek (before call): %zd\n",
- pos->offset);
- ctf_packet_seek(&pos->parent, 0, SEEK_CUR);
- printf_debug("ctf_packet_seek (after call): %zd\n",
- pos->offset);
- return;
- }
+ printf_debug("ctf_move_pos test EOF: %" PRId64 "\n", pos->offset);
+ ret = ctf_pos_access_ok(pos, bit_offset);
+ if (!ret) {
+ goto end;
}
pos->offset += bit_offset;
- printf_debug("ctf_move_pos after increment: %zd\n", pos->offset);
+ printf_debug("ctf_move_pos after increment: %" PRId64 "\n", pos->offset);
+end:
+ return ret;
}
/*
* align_pos - align position on a bit offset (> 0)
*
+ * Return 1 if OK, 0 if out-of-bound.
+ *
* TODO: allow larger files by updating base too.
*/
static inline
-void ctf_align_pos(struct ctf_stream_pos *pos, size_t bit_offset)
+int ctf_align_pos(struct ctf_stream_pos *pos, uint64_t bit_offset)
{
- ctf_move_pos(pos, offset_align(pos->offset, bit_offset));
+ return ctf_move_pos(pos, offset_align(pos->offset, bit_offset));
}
static inline
{
/* Only makes sense to get the address after aligning on CHAR_BIT */
assert(!(pos->offset % CHAR_BIT));
- return pos->base + (pos->offset / CHAR_BIT);
+ return mmap_align_addr(pos->base_mma) +
+ pos->mmap_base_offset + (pos->offset / CHAR_BIT);
}
static inline
static inline
void ctf_pos_pad_packet(struct ctf_stream_pos *pos)
{
- ctf_move_pos(pos, pos->packet_size - pos->offset);
-}
-
-static inline
-int ctf_pos_access_ok(struct ctf_stream_pos *pos, size_t bit_len)
-{
- if (unlikely(pos->offset == EOF))
- return 0;
- if (unlikely(pos->offset + bit_len > pos->packet_size))
- return 0;
- return 1;
+ ctf_packet_seek(&pos->parent, 0, SEEK_CUR);
}
/*
- * Update the stream position for to the current event. This moves to
+ * Update the stream position to the current event. This moves to
* the next packet if we are located at the end of the current packet.
*/
static inline
{
assert(pos->offset <= pos->content_size);
if (pos->offset == pos->content_size) {
- printf_debug("ctf_packet_seek (before call): %zd\n",
+ printf_debug("ctf_packet_seek (before call): %" PRId64 "\n",
pos->offset);
pos->packet_seek(&pos->parent, 0, SEEK_CUR);
- printf_debug("ctf_packet_seek (after call): %zd\n",
+ printf_debug("ctf_packet_seek (after call): %" PRId64 "\n",
pos->offset);
}
}
-void ctf_print_timestamp(FILE *fp, struct ctf_stream *stream,
+void ctf_print_timestamp(FILE *fp, struct ctf_stream_definition *stream,
uint64_t timestamp);
+int ctf_append_trace_metadata(struct bt_trace_descriptor *tdp,
+ FILE *metadata_fp);
#endif /* _BABELTRACE_CTF_TYPES_H */
projects / babeltrace.git / blobdiff