1 /*
2 * Copyright (c) 2018, The Linux Foundation. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above
10 * copyright notice, this list of conditions and the following
11 * disclaimer in the documentation and/or other materials provided
12 * with the distribution.
13 * * Neither the name of The Linux Foundation nor the names of its
14 * contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
24 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
26 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
27 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30 #include "debug_handler.h"
31
32 namespace display {
33
34 // By default, drop any log messages/traces. It need to be overridden by client.
35 class DefaultDebugHandler : public DebugHandler {
36 public:
Error(const char *,...)37 virtual void Error(const char *, ...) { }
Warning(const char *,...)38 virtual void Warning(const char *, ...) { }
Info(const char *,...)39 virtual void Info(const char *, ...) { }
Debug(const char *,...)40 virtual void Debug(const char *, ...) { }
Verbose(const char *,...)41 virtual void Verbose(const char *, ...) { }
BeginTrace(const char *,const char *,const char *)42 virtual void BeginTrace(const char *, const char *, const char *) { }
EndTrace()43 virtual void EndTrace() { }
GetProperty(const char *,int *)44 virtual int GetProperty(const char *, int *) { return -1; }
GetProperty(const char *,char *)45 virtual int GetProperty(const char *, char *) { return -1; }
46 };
47
48 DefaultDebugHandler g_default_debug_handler;
49 DebugHandler * DebugHandler::debug_handler_ = &g_default_debug_handler;
50 std::bitset<32> DebugHandler::log_mask_ = 0x1; // Always print logs tagged with value 0
51
Set(DebugHandler * debug_handler)52 void DebugHandler::Set(DebugHandler *debug_handler) {
53 if (debug_handler) {
54 debug_handler_ = debug_handler;
55 } else {
56 debug_handler_ = &g_default_debug_handler;
57 }
58 }
59
60 } // namespace display
61