u_log.h revision b8e80941 
1/*
2 * Copyright 2017 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * on the rights to use, copy, modify, merge, publish, distribute, sub
8 * license, and/or sell copies of the Software, and to permit persons to whom
9 * the Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21 * USE OR OTHER DEALINGS IN THE SOFTWARE.
22 */
23
24/**
25 * @file u_log.h
26 * @brief Context logging facilities
27 *
28 * Provides a means of logging context events (draw calls, command streams, ...)
29 * into files.
30 *
31 * Log entries start their life cycle as "chunks". Chunks can be plain text
32 * written by \ref u_log_printf or custom internal representations added by
33 * \ref u_log_chunk that are only converted to text on-demand (e.g. for higher
34 * performance pipelined hang-debugging).
35 *
36 * Chunks are accumulated into "pages". The manager of the log can periodically
37 * take out the current page using \ref u_log_new_page and dump it to a file.
38 *
39 * Furthermore, "auto loggers" can be added to a context, which are callbacks
40 * that are given the opportunity to add their own logging each time a chunk is
41 * added. Drivers can use this to lazily log chunks of their command stream.
42 * Lazy loggers don't need to be re-entrant.
43 */
44
45#ifndef U_LOG_H
46#define U_LOG_H
47
48#include <stdio.h>
49
50#include "util/u_debug.h"
51
52struct u_log_page;
53struct u_log_auto_logger;
54
55struct u_log_chunk_type {
56   void (*destroy)(void *data);
57   void (*print)(void *data, FILE *stream);
58};
59
60struct u_log_context {
61   struct u_log_page *cur;
62   struct u_log_auto_logger *auto_loggers;
63   unsigned num_auto_loggers;
64};
65
66typedef void (u_auto_log_fn)(void *data, struct u_log_context *ctx);
67
68void
69u_log_context_init(struct u_log_context *ctx);
70
71void
72u_log_context_destroy(struct u_log_context *ctx);
73
74void
75u_log_add_auto_logger(struct u_log_context *ctx, u_auto_log_fn *callback,
76                      void *data);
77
78void
79u_log_flush(struct u_log_context *ctx);
80
81void
82u_log_printf(struct u_log_context *ctx, const char *fmt, ...) _util_printf_format(2,3);
83
84void
85u_log_chunk(struct u_log_context *ctx, const struct u_log_chunk_type *type,
86            void *data);
87
88void
89u_log_new_page_print(struct u_log_context *ctx, FILE *stream);
90
91struct u_log_page *
92u_log_new_page(struct u_log_context *ctx);
93
94void
95u_log_page_destroy(struct u_log_page *page);
96
97void
98u_log_page_print(struct u_log_page *page, FILE *stream);
99
100#endif /* U_LOG_H */
101