*
* Trace Format Header
*
- * Copyright 2010, 2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation
+ *
+ * Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* all copies or substantial portions of the Software.
*/
-#include <babeltrace/types.h>
+#include <babeltrace/list.h>
#include <stdint.h>
-#include <glib.h>
+#include <stdio.h>
-struct format {
- GQuark name;
+typedef int bt_intern_str;
+
+/* forward declaration */
+struct stream_pos;
+
+/* Parent trace descriptor */
+struct trace_descriptor {
+};
- uint64_t (*uint_read)(struct stream_pos *pos,
- const struct type_integer *integer_type);
- int64_t (*int_read)(struct stream_pos *pos,
- const struct type_integer *integer_type);
- void (*uint_write)(struct stream_pos *pos,
- const struct type_integer *integer_type,
- uint64_t v);
- void (*int_write)(struct stream_pos *pos,
- const struct type_integer *integer_type,
- int64_t v);
+struct mmap_stream {
+ int fd;
+ struct bt_list_head list;
+};
- void (*float_copy)(struct stream_pos *destp,
- struct stream_pos *srcp,
- const struct type_float *float_type);
- double (*double_read)(struct stream_pos *pos,
- const struct type_float *float_type);
- void (*double_write)(struct stream_pos *pos,
- const struct type_float *float_type,
- double v);
+struct mmap_stream_list {
+ struct bt_list_head head;
+};
- void (*string_copy)(struct stream_pos *dest, struct stream_pos *src,
- const struct type_string *string_type);
- void (*string_read)(char **dest, struct stream_pos *src,
- const struct type_string *string_type);
- void (*string_write)(struct stream_pos *dest, const char *src,
- const struct type_string *string_type);
- void (*string_free_temp)(char *string);
+struct format {
+ bt_intern_str name;
- /*
- * enum_read returns a GArray of GQuark. Must be released with
- * g_array_unref().
- */
- GArray *(*enum_read)(struct stream_pos *pos,
- const struct type_enum *src);
- void (*enum_write)(struct stream_pos *pos,
- const struct type_enum *dest,
- GQuark q);
- void (*struct_begin)(struct stream_pos *pos,
- const struct type_struct *struct_type);
- void (*struct_end)(struct stream_pos *pos,
- const struct type_struct *struct_type);
- void (*variant_begin)(struct stream_pos *pos,
- const struct type_variant *variant_type);
- void (*variant_end)(struct stream_pos *pos,
- const struct type_variant *variant_type);
- void (*array_begin)(struct stream_pos *pos,
- const struct type_array *array_type);
- void (*array_end)(struct stream_pos *pos,
- const struct type_array *array_type);
- void (*sequence_begin)(struct stream_pos *pos,
- const struct type_sequence *sequence_type);
- void (*sequence_end)(struct stream_pos *pos,
- const struct type_sequence *sequence_type);
+ struct trace_descriptor *(*open_trace)(const char *path, int flags,
+ void (*packet_seek)(struct stream_pos *pos,
+ size_t index, int whence),
+ FILE *metadata_fp);
+ struct trace_descriptor *(*open_mmap_trace)(
+ struct mmap_stream_list *mmap_list,
+ void (*packet_seek)(struct stream_pos *pos,
+ size_t index, int whence),
+ FILE *metadata_fp);
+ void (*close_trace)(struct trace_descriptor *descriptor);
};
-struct format *bt_lookup_format(GQuark qname);
-int bt_register_format(struct format *format);
+extern struct format *bt_lookup_format(bt_intern_str qname);
+extern void bt_fprintf_format_list(FILE *fp);
+extern int bt_register_format(struct format *format);
/* TBD: format unregistration */