fix packet vs file size check
[babeltrace.git] / formats / ctf-text / ctf-text.c
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1/*
2 * BabelTrace - Common Trace Format (CTF)
3 *
4 * CTF Text Format registration.
5 *
6 * Copyright 2010, 2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a copy
9 * of this software and associated documentation files (the "Software"), to deal
10 * in the Software without restriction, including without limitation the rights
11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12 * copies of the Software, and to permit persons to whom the Software is
13 * furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
17 */
18
19#include <babeltrace/format.h>
20#include <babeltrace/ctf-text/types.h>
21#include <babeltrace/babeltrace.h>
22#include <inttypes.h>
23#include <uuid/uuid.h>
24#include <sys/mman.h>
25#include <errno.h>
26#include <sys/types.h>
27#include <sys/stat.h>
28#include <fcntl.h>
29#include <dirent.h>
30#include <glib.h>
31#include <unistd.h>
32#include <stdlib.h>
33
34struct trace_descriptor *ctf_text_open_trace(const char *path, int flags);
35void ctf_text_close_trace(struct trace_descriptor *descriptor);
36
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37static
38rw_dispatch write_dispatch_table[] = {
39 [ CTF_TYPE_INTEGER ] = ctf_text_integer_write,
40 [ CTF_TYPE_FLOAT ] = ctf_text_float_write,
41 [ CTF_TYPE_ENUM ] = ctf_text_enum_write,
42 [ CTF_TYPE_STRING ] = ctf_text_string_write,
43 [ CTF_TYPE_STRUCT ] = ctf_text_struct_write,
44 [ CTF_TYPE_VARIANT ] = ctf_text_variant_write,
45 [ CTF_TYPE_ARRAY ] = ctf_text_array_write,
46 [ CTF_TYPE_SEQUENCE ] = ctf_text_sequence_write,
47};
48
49static
50struct format ctf_text_format = {
51 .open_trace = ctf_text_open_trace,
52 .close_trace = ctf_text_close_trace,
53};
54
55struct trace_descriptor *ctf_text_open_trace(const char *path, int flags)
56{
57 struct ctf_text_stream_pos *pos;
58 FILE *fp;
59
60 pos = g_new0(struct ctf_text_stream_pos, 1);
61
62 switch (flags & O_ACCMODE) {
63 case O_WRONLY:
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64 if (!path)
65 path = "/dev/stdout";
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66 fp = fopen(path, "w");
67 if (!fp)
68 goto error;
69 pos->fp = fp;
70 pos->parent.rw_table = write_dispatch_table;
71 break;
72 case O_RDONLY:
73 default:
74 fprintf(stdout, "[error] Incorrect open flags.\n");
75 goto error;
76 }
77
78 return &pos->trace_descriptor;
79error:
80 g_free(pos);
81 return NULL;
82}
83
84void ctf_text_close_trace(struct trace_descriptor *td)
85{
86 struct ctf_text_stream_pos *pos =
87 container_of(td, struct ctf_text_stream_pos, trace_descriptor);
88 fclose(pos->fp);
89 g_free(pos);
90}
91
92void __attribute__((constructor)) ctf_text_init(void)
93{
94 int ret;
95
96 ctf_text_format.name = g_quark_from_static_string("text");
97 ret = bt_register_format(&ctf_text_format);
98 assert(!ret);
99}
100
101/* TODO: finalize */
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