e1731a4f2e
Fixes -Wzero-as-null-pointer-constant warning. Test: m Bug: 68236239 Change-Id: I5e89ec8c42151875439d2656475a8739ab9cb7dc
160 lines
3.9 KiB
C++
160 lines
3.9 KiB
C++
/*
|
|
* Copyright (C) 2013 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#define LOG_TAG "Printer"
|
|
// #define LOG_NDEBUG 0
|
|
|
|
#include <utils/Printer.h>
|
|
#include <utils/String8.h>
|
|
#include <utils/Log.h>
|
|
|
|
#include <stdlib.h>
|
|
|
|
namespace android {
|
|
|
|
/*
|
|
* Implementation of Printer
|
|
*/
|
|
Printer::Printer() {
|
|
// Intentionally left empty
|
|
}
|
|
|
|
Printer::~Printer() {
|
|
// Intentionally left empty
|
|
}
|
|
|
|
void Printer::printFormatLine(const char* format, ...) {
|
|
va_list arglist;
|
|
va_start(arglist, format);
|
|
|
|
char* formattedString;
|
|
|
|
#ifndef _WIN32
|
|
if (vasprintf(&formattedString, format, arglist) < 0) { // returns -1 on error
|
|
ALOGE("%s: Failed to format string", __FUNCTION__);
|
|
va_end(arglist);
|
|
return;
|
|
}
|
|
#else
|
|
va_end(arglist);
|
|
return;
|
|
#endif
|
|
|
|
va_end(arglist);
|
|
|
|
printLine(formattedString);
|
|
free(formattedString);
|
|
}
|
|
|
|
/*
|
|
* Implementation of LogPrinter
|
|
*/
|
|
LogPrinter::LogPrinter(const char* logtag,
|
|
android_LogPriority priority,
|
|
const char* prefix,
|
|
bool ignoreBlankLines) :
|
|
mLogTag(logtag),
|
|
mPriority(priority),
|
|
mPrefix(prefix ?: ""),
|
|
mIgnoreBlankLines(ignoreBlankLines) {
|
|
}
|
|
|
|
void LogPrinter::printLine(const char* string) {
|
|
if (string == nullptr) {
|
|
ALOGW("%s: NULL string passed in", __FUNCTION__);
|
|
return;
|
|
}
|
|
|
|
if (mIgnoreBlankLines || (*string)) {
|
|
// Simple case: Line is not blank, or we don't care about printing blank lines
|
|
printRaw(string);
|
|
} else {
|
|
// Force logcat to print empty lines by adding prefixing with a space
|
|
printRaw(" ");
|
|
}
|
|
}
|
|
|
|
void LogPrinter::printRaw(const char* string) {
|
|
__android_log_print(mPriority, mLogTag, "%s%s", mPrefix, string);
|
|
}
|
|
|
|
|
|
/*
|
|
* Implementation of FdPrinter
|
|
*/
|
|
FdPrinter::FdPrinter(int fd, unsigned int indent, const char* prefix) :
|
|
mFd(fd), mIndent(indent), mPrefix(prefix ?: "") {
|
|
|
|
if (fd < 0) {
|
|
ALOGW("%s: File descriptor out of range (%d)", __FUNCTION__, fd);
|
|
}
|
|
|
|
// <indent><prefix><line> -- e.g. '%-4s%s\n' for indent=4
|
|
snprintf(mFormatString, sizeof(mFormatString), "%%-%us%%s\n", mIndent);
|
|
}
|
|
|
|
void FdPrinter::printLine(const char* string) {
|
|
if (string == nullptr) {
|
|
ALOGW("%s: NULL string passed in", __FUNCTION__);
|
|
return;
|
|
} else if (mFd < 0) {
|
|
ALOGW("%s: File descriptor out of range (%d)", __FUNCTION__, mFd);
|
|
return;
|
|
}
|
|
|
|
#ifndef _WIN32
|
|
dprintf(mFd, mFormatString, mPrefix, string);
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Implementation of String8Printer
|
|
*/
|
|
String8Printer::String8Printer(String8* target, const char* prefix) :
|
|
mTarget(target),
|
|
mPrefix(prefix ?: "") {
|
|
|
|
if (target == nullptr) {
|
|
ALOGW("%s: Target string was NULL", __FUNCTION__);
|
|
}
|
|
}
|
|
|
|
void String8Printer::printLine(const char* string) {
|
|
if (string == nullptr) {
|
|
ALOGW("%s: NULL string passed in", __FUNCTION__);
|
|
return;
|
|
} else if (mTarget == nullptr) {
|
|
ALOGW("%s: Target string was NULL", __FUNCTION__);
|
|
return;
|
|
}
|
|
|
|
mTarget->append(mPrefix);
|
|
mTarget->append(string);
|
|
mTarget->append("\n");
|
|
}
|
|
|
|
/*
|
|
* Implementation of PrefixPrinter
|
|
*/
|
|
PrefixPrinter::PrefixPrinter(Printer& printer, const char* prefix) :
|
|
mPrinter(printer), mPrefix(prefix ?: "") {
|
|
}
|
|
|
|
void PrefixPrinter::printLine(const char* string) {
|
|
mPrinter.printFormatLine("%s%s", mPrefix, string);
|
|
}
|
|
|
|
}; //namespace android
|