*/
#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>
};
/*
- * Always update stream_pos with move_pos and init_pos.
+ * Always update ctf_stream_pos with ctf_move_pos and ctf_init_pos.
*/
-struct stream_pos {
+struct ctf_stream_pos {
+ struct stream_pos parent;
int fd; /* backing file fd. -1 if unset. */
GArray *packet_index; /* contains struct packet_index */
int prot; /* mmap protection */
int dummy; /* dummy position, for length calculation */
};
-/*
- * IMPORTANT: All lengths (len) and offsets (start, end) are expressed in bits,
- * *not* in bytes.
- *
- * All write primitives, as well as read for dynamically sized entities, can
- * receive a NULL ptr/dest parameter. In this case, no write is performed, but
- * the size is returned.
- */
+static inline
+struct ctf_stream_pos *ctf_pos(struct stream_pos *pos)
+{
+ return container_of(pos, struct ctf_stream_pos, parent);
+}
+
+void ctf_integer_read(struct stream_pos *pos, struct definition *definition);
+void ctf_integer_write(struct stream_pos *pos, struct definition *definition);
+void ctf_float_read(struct stream_pos *pos, struct definition *definition);
+void ctf_float_write(struct stream_pos *pos, struct definition *definition);
+void ctf_string_read(struct stream_pos *pos, struct definition *definition);
+void ctf_string_write(struct stream_pos *pos, struct definition *definition);
+void ctf_enum_read(struct stream_pos *pos, struct definition *definition);
+void ctf_enum_write(struct stream_pos *pos, struct definition *definition);
+void ctf_struct_rw(struct stream_pos *pos, struct definition *definition);
+void ctf_variant_rw(struct stream_pos *pos, struct definition *definition);
+void ctf_array_rw(struct stream_pos *pos, struct definition *definition);
+void ctf_sequence_rw(struct stream_pos *pos, struct definition *definition);
+
+void ctf_move_pos_slow(struct ctf_stream_pos *pos, size_t offset);
-uint64_t ctf_uint_read(struct stream_pos *pos,
- const struct declaration_integer *integer_declaration);
-int64_t ctf_int_read(struct stream_pos *pos,
- const struct declaration_integer *integer_declaration);
-void ctf_uint_write(struct stream_pos *pos,
- const struct declaration_integer *integer_declaration,
- uint64_t v);
-void ctf_int_write(struct stream_pos *pos,
- const struct declaration_integer *integer_declaration,
- int64_t v);
-
-double ctf_double_read(struct stream_pos *pos,
- const struct declaration_float *src);
-void ctf_double_write(struct stream_pos *pos,
- const struct declaration_float *dest,
- double v);
-long double ctf_ldouble_read(struct stream_pos *pos,
- const struct declaration_float *src);
-void ctf_ldouble_write(struct stream_pos *pos,
- const struct declaration_float *dest,
- long double v);
-void ctf_float_copy(struct stream_pos *destp,
- struct stream_pos *srcp,
- const struct declaration_float *float_declaration);
-
-void ctf_string_copy(struct stream_pos *dest, struct stream_pos *src,
- const struct declaration_string *string_declaration);
-void ctf_string_read(char **dest, struct stream_pos *src,
- const struct declaration_string *string_declaration);
-void ctf_string_write(struct stream_pos *dest, const char *src,
- const struct declaration_string *string_declaration);
-void ctf_string_free_temp(char *string);
-
-GArray *ctf_enum_read(struct stream_pos *pos,
- const struct declaration_enum *src);
-void ctf_enum_write(struct stream_pos *pos,
- const struct declaration_enum *dest,
- GQuark q);
-void ctf_struct_begin(struct stream_pos *pos,
- const struct declaration_struct *struct_declaration);
-void ctf_struct_end(struct stream_pos *pos,
- const struct declaration_struct *struct_declaration);
-void ctf_variant_begin(struct stream_pos *pos,
- const struct declaration_variant *variant_declaration);
-void ctf_variant_end(struct stream_pos *pos,
- const struct declaration_variant *variant_declaration);
-void ctf_array_begin(struct stream_pos *pos,
- const struct declaration_array *array_declaration);
-void ctf_array_end(struct stream_pos *pos,
- const struct declaration_array *array_declaration);
-void ctf_sequence_begin(struct stream_pos *pos,
- const struct declaration_sequence *sequence_declaration);
-void ctf_sequence_end(struct stream_pos *pos,
- const struct declaration_sequence *sequence_declaration);
-
-void move_pos_slow(struct stream_pos *pos, size_t offset);
-
-void init_pos(struct stream_pos *pos, int fd);
-void fini_pos(struct stream_pos *pos);
+void ctf_init_pos(struct ctf_stream_pos *pos, int fd, int open_flags);
+void ctf_fini_pos(struct ctf_stream_pos *pos);
/*
* move_pos - move position of a relative bit offset
* TODO: allow larger files by updating base too.
*/
static inline
-void move_pos(struct stream_pos *pos, size_t bit_offset)
+void ctf_move_pos(struct ctf_stream_pos *pos, size_t bit_offset)
{
if (pos->fd >= 0) {
if (((pos->prot == PROT_READ)
&& (pos->offset + bit_offset >= pos->content_size))
|| ((pos->prot == PROT_WRITE)
&& (pos->offset + bit_offset >= pos->packet_size))) {
- move_pos_slow(pos, bit_offset);
+ ctf_move_pos_slow(pos, bit_offset);
return;
}
}
* TODO: allow larger files by updating base too.
*/
static inline
-void align_pos(struct stream_pos *pos, size_t bit_offset)
+void ctf_align_pos(struct ctf_stream_pos *pos, size_t bit_offset)
{
- move_pos(pos, offset_align(pos->offset, bit_offset));
+ ctf_move_pos(pos, offset_align(pos->offset, bit_offset));
}
static inline
-char *get_pos_addr(struct stream_pos *pos)
+char *ctf_get_pos_addr(struct ctf_stream_pos *pos)
{
/* Only makes sense to get the address after aligning on CHAR_BIT */
assert(!(pos->offset % CHAR_BIT));
}
static inline
-void dummy_pos(struct stream_pos *pos, struct stream_pos *dummy)
+void ctf_dummy_pos(struct ctf_stream_pos *pos, struct ctf_stream_pos *dummy)
{
- memcpy(dummy, pos, sizeof(struct stream_pos));
+ memcpy(dummy, pos, sizeof(struct ctf_stream_pos));
dummy->dummy = 1;
dummy->fd = -1;
}
* Returns 0 for success, negative error otherwise.
*/
static inline
-int pos_packet(struct stream_pos *dummy)
+int ctf_pos_packet(struct ctf_stream_pos *dummy)
{
if (dummy->offset > dummy->packet_size)
return -ENOSPC;
}
static inline
-void pos_pad_packet(struct stream_pos *pos)
+void ctf_pos_pad_packet(struct ctf_stream_pos *pos)
{
- move_pos(pos, pos->packet_size - pos->offset);
+ ctf_move_pos(pos, pos->packet_size - pos->offset);
}
#endif /* _BABELTRACE_CTF_TYPES_H */
projects / babeltrace.git / blobdiff