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1 /*
2  * Copyright (C) 2008 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 // All static variables go here, to control initialization and
18 // destruction order in the library.
19 
20 #include <hwbinder/Static.h>
21 
22 #include <hwbinder/BufferedTextOutput.h>
23 #include <hwbinder/IPCThreadState.h>
24 #include <utils/Log.h>
25 
26 namespace android {
27 namespace hardware {
28 
29 // ------------ Text output streams
30 
31 Vector<int32_t> gTextBuffers;
32 
33 class LogTextOutput : public BufferedTextOutput
34 {
35 public:
LogTextOutput()36     LogTextOutput() : BufferedTextOutput(MULTITHREADED) { }
~LogTextOutput()37     virtual ~LogTextOutput() { };
38 
39 protected:
writeLines(const struct iovec & vec,size_t N)40     virtual status_t writeLines(const struct iovec& vec, size_t N)
41     {
42         //android_writevLog(&vec, N);       <-- this is now a no-op
43         if (N != 1) ALOGI("WARNING: writeLines N=%zu\n", N);
44         ALOGI("%.*s", (int)vec.iov_len, (const char*) vec.iov_base);
45         return NO_ERROR;
46     }
47 };
48 
49 class FdTextOutput : public BufferedTextOutput
50 {
51 public:
FdTextOutput(int fd)52     explicit FdTextOutput(int fd) : BufferedTextOutput(MULTITHREADED), mFD(fd) { }
~FdTextOutput()53     virtual ~FdTextOutput() { };
54 
55 protected:
writeLines(const struct iovec & vec,size_t N)56     virtual status_t writeLines(const struct iovec& vec, size_t N)
57     {
58         writev(mFD, &vec, N);
59         return NO_ERROR;
60     }
61 
62 private:
63     int mFD;
64 };
65 
66 static LogTextOutput gLogTextOutput;
67 static FdTextOutput gStdoutTextOutput(STDOUT_FILENO);
68 static FdTextOutput gStderrTextOutput(STDERR_FILENO);
69 
70 TextOutput& alog(gLogTextOutput);
71 TextOutput& aout(gStdoutTextOutput);
72 TextOutput& aerr(gStderrTextOutput);
73 
74 // ------------ ProcessState.cpp
75 
76 Mutex& gProcessMutex = *new Mutex;
77 sp<ProcessState> gProcess;
78 
79 }   // namespace hardware
80 }   // namespace android
81