4 * Babeltrace Trace Converter Library
6 * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation
8 * Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
10 * Permission is hereby granted, free of charge, to any person obtaining a copy
11 * of this software and associated documentation files (the "Software"), to deal
12 * in the Software without restriction, including without limitation the rights
13 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
14 * copies of the Software, and to permit persons to whom the Software is
15 * furnished to do so, subject to the following conditions:
17 * The above copyright notice and this permission notice shall be included in
18 * all copies or substantial portions of the Software.
25 #include <babeltrace/babeltrace.h>
26 #include <babeltrace/format.h>
27 #include <babeltrace/ctf/types.h>
28 #include <babeltrace/ctf/metadata.h>
29 #include <babeltrace/ctf-text/types.h>
30 #include <babeltrace/prio_heap.h>
32 static int read_event(struct ctf_file_stream
*sin
)
36 ret
= sin
->pos
.parent
.event_cb(&sin
->pos
.parent
, &sin
->parent
);
40 fprintf(stdout
, "[error] Reading event failed.\n");
47 * returns true if a < b, false otherwise.
49 int stream_compare(void *a
, void *b
)
51 struct ctf_file_stream
*s_a
= a
, *s_b
= b
;
53 if (s_a
->parent
.timestamp
< s_b
->parent
.timestamp
)
59 int convert_trace(struct trace_descriptor
*td_write
,
60 struct trace_collection
*trace_collection_read
)
62 struct ptr_heap
*stream_heap
;
63 struct ctf_text_stream_pos
*sout
;
67 stream_heap
= g_new(struct ptr_heap
, 1);
68 heap_init(stream_heap
, 0, stream_compare
);
69 sout
= container_of(td_write
, struct ctf_text_stream_pos
,
72 for (i
= 0; i
< trace_collection_read
->array
->len
; i
++) {
73 struct ctf_trace
*tin
;
74 struct trace_descriptor
*td_read
;
76 td_read
= g_ptr_array_index(trace_collection_read
->array
, i
);
77 tin
= container_of(td_read
, struct ctf_trace
, parent
);
79 /* Populate heap with each stream */
80 for (stream_id
= 0; stream_id
< tin
->streams
->len
;
82 struct ctf_stream_class
*stream
;
85 stream
= g_ptr_array_index(tin
->streams
, stream_id
);
88 for (filenr
= 0; filenr
< stream
->streams
->len
;
90 struct ctf_file_stream
*file_stream
;
92 file_stream
= g_ptr_array_index(stream
->streams
,
95 ret
= read_event(file_stream
);
103 ret
= heap_insert(stream_heap
, file_stream
);
106 "[error] Out of memory.\n");
113 /* Replace heap entries until EOF for each stream (heap empty) */
115 struct ctf_file_stream
*file_stream
, *removed
;
117 file_stream
= heap_maximum(stream_heap
);
119 /* end of file for all streams */
123 ret
= sout
->parent
.event_cb(&sout
->parent
, &file_stream
->parent
);
125 fprintf(stdout
, "[error] Writing event failed.\n");
128 ret
= read_event(file_stream
);
130 removed
= heap_remove(stream_heap
);
131 assert(removed
== file_stream
);
136 /* Reinsert the file stream into the heap, and rebalance. */
137 removed
= heap_replace_max(stream_heap
, file_stream
);
138 assert(removed
== file_stream
);
142 heap_free(stream_heap
);
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