apple_glx_log.c revision 27b821bc95ea01cc4292ada9c7c65211580d1f98 
1/*
2 * Copyright (c) 2012 Apple Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person
5 * obtaining a copy of this software and associated documentation files
6 * (the "Software"), to deal in the Software without restriction,
7 * including without limitation the rights to use, copy, modify, merge,
8 * publish, distribute, sublicense, and/or sell copies of the Software,
9 * and to permit persons to whom the Software is furnished to do so,
10 * subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT.  IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT
19 * HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
20 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 *
24 * Except as contained in this notice, the name(s) of the above
25 * copyright holders shall not be used in advertising or otherwise to
26 * promote the sale, use or other dealings in this Software without
27 * prior written authorization.
28 */
29
30#include <sys/cdefs.h>
31#include <asl.h>
32#include <stdio.h>
33#include <stdbool.h>
34#include <stdint.h>
35#include <stdlib.h>
36#include <inttypes.h>
37#include <pthread.h>
38#include "apple_glx_log.h"
39
40static bool diagnostic = false;
41static aslclient aslc;
42
43void apple_glx_log_init(void) {
44    if (getenv("LIBGL_DIAGNOSTIC")) {
45        diagnostic = true;
46    }
47
48    aslc = asl_open(NULL, NULL, 0);
49}
50
51void _apple_glx_log(int level, const char *file, const char *function,
52                    int line, const char *fmt, ...) {
53    va_list v;
54    va_start(v, fmt);
55    _apple_glx_vlog(level, file, function, line, fmt, v);
56    va_end(v);
57}
58
59static const char *
60_asl_level_string(int level)
61{
62        if (level == ASL_LEVEL_EMERG) return ASL_STRING_EMERG;
63        if (level == ASL_LEVEL_ALERT) return ASL_STRING_ALERT;
64        if (level == ASL_LEVEL_CRIT) return ASL_STRING_CRIT;
65        if (level == ASL_LEVEL_ERR) return ASL_STRING_ERR;
66        if (level == ASL_LEVEL_WARNING) return ASL_STRING_WARNING;
67        if (level == ASL_LEVEL_NOTICE) return ASL_STRING_NOTICE;
68        if (level == ASL_LEVEL_INFO) return ASL_STRING_INFO;
69        if (level == ASL_LEVEL_DEBUG) return ASL_STRING_DEBUG;
70        return "unknown";
71}
72
73void _apple_glx_vlog(int level, const char *file, const char *function,
74                     int line, const char *fmt, va_list args) {
75    aslmsg msg;
76    uint64_t thread = 0;
77
78    if (pthread_is_threaded_np()) {
79#if MAC_OS_X_VERSION_MAX_ALLOWED < 1060
80        thread = (uint64_t)(uintptr_t)pthread_self();
81#elif MAC_OS_X_VERSION_MIN_REQUIRED < 1060
82        if (&pthread_threadid_np) {
83            pthread_threadid_np(NULL, &thread);
84        } else {
85            thread = (uint64_t)(uintptr_t)pthread_self();
86        }
87#else
88        pthread_threadid_np(NULL, &thread);
89#endif
90    }
91
92    if (diagnostic) {
93        va_list args2;
94        va_copy(args2, args);
95
96        fprintf(stderr, "%-9s %24s:%-4d %s(%"PRIu64"): ",
97                _asl_level_string(level), file, line, function, thread);
98        vfprintf(stderr, fmt, args2);
99    }
100
101    msg = asl_new(ASL_TYPE_MSG);
102    if (msg) {
103        if (file)
104            asl_set(msg, "File", file);
105        if (function)
106            asl_set(msg, "Function", function);
107        if (line) {
108            char *_line;
109            asprintf(&_line, "%d", line);
110            if (_line) {
111                asl_set(msg, "Line", _line);
112                free(_line);
113            }
114        }
115        if (pthread_is_threaded_np()) {
116            char *_thread;
117            asprintf(&_thread, "%"PRIu64, thread);
118            if (_thread) {
119                asl_set(msg, "Thread", _thread);
120                free(_thread);
121            }
122        }
123    }
124
125    asl_vlog(aslc, msg, level, fmt, args);
126    if (msg)
127        asl_free(msg);
128}
129