9cb654adbece20c2bf75aa9875a6cd3bba1e8560
[babeltrace.git] / lib / trace-handle.c
1 /*
2 * trace_handle.c
3 *
4 * Babeltrace Library
5 *
6 * Copyright 2012 EfficiOS Inc. and Linux Foundation
7 *
8 * Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
9 * Julien Desfossez <julien.desfossez@efficios.com>
10 *
11 * Permission is hereby granted, free of charge, to any person obtaining a copy
12 * of this software and associated documentation files (the "Software"), to deal
13 * in the Software without restriction, including without limitation the rights
14 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
15 * copies of the Software, and to permit persons to whom the Software is
16 * furnished to do so, subject to the following conditions:
17 *
18 * The above copyright notice and this permission notice shall be included in
19 * all copies or substantial portions of the Software.
20 */
21
22 #include <stdint.h>
23 #include <stdlib.h>
24 #include <babeltrace/babeltrace.h>
25 #include <babeltrace/context.h>
26 #include <babeltrace/context-internal.h>
27 #include <babeltrace/trace-handle.h>
28 #include <babeltrace/trace-handle-internal.h>
29
30 struct bt_trace_handle *bt_trace_handle_create(struct bt_context *ctx)
31 {
32 struct bt_trace_handle *th;
33
34 if (!ctx)
35 return NULL;
36
37 th = g_new0(struct bt_trace_handle, 1);
38 th->id = ctx->last_trace_handle_id++;
39 return th;
40 }
41
42 void bt_trace_handle_destroy(struct bt_trace_handle *th)
43 {
44 th->format->close_trace(th->td);
45 g_free(th);
46 }
47
48 int bt_trace_handle_get_id(struct bt_trace_handle *th)
49 {
50 if (!th)
51 return -1;
52
53 return th->id;
54 }
55
56 const char *bt_trace_handle_get_path(struct bt_context *ctx, int handle_id)
57 {
58 struct bt_trace_handle *handle;
59
60 if (!ctx)
61 return NULL;
62
63 handle = g_hash_table_lookup(ctx->trace_handles,
64 (gpointer) (unsigned long) handle_id);
65 if (!handle)
66 return NULL;
67 return handle->path;
68 }
69
70 uint64_t bt_trace_handle_get_timestamp_begin(struct bt_context *ctx,
71 int handle_id, enum bt_clock_type type)
72 {
73 struct bt_trace_handle *handle;
74 uint64_t ret;
75
76 if (!ctx)
77 return -1ULL;
78
79 handle = g_hash_table_lookup(ctx->trace_handles,
80 (gpointer) (unsigned long) handle_id);
81 if (!handle) {
82 ret = -1ULL;
83 goto end;
84 }
85 if (type == BT_CLOCK_REAL) {
86 ret = handle->real_timestamp_begin;
87 } else if (type == BT_CLOCK_CYCLES) {
88 ret = handle->cycles_timestamp_begin;
89 } else {
90 ret = -1ULL;
91 }
92
93 end:
94 return ret;
95 }
96
97 uint64_t bt_trace_handle_get_timestamp_end(struct bt_context *ctx,
98 int handle_id, enum bt_clock_type type)
99 {
100 struct bt_trace_handle *handle;
101 uint64_t ret;
102
103 if (!ctx)
104 return -1ULL;
105
106 handle = g_hash_table_lookup(ctx->trace_handles,
107 (gpointer) (unsigned long) handle_id);
108 if (!handle) {
109 ret = -1ULL;
110 goto end;
111 }
112 if (type == BT_CLOCK_REAL) {
113 ret = handle->real_timestamp_end;
114 } else if (type == BT_CLOCK_CYCLES) {
115 ret = handle->cycles_timestamp_end;
116 } else {
117 ret = -1ULL;
118 }
119
120 end:
121 return ret;
122 }
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