file mode

This commit is contained in:
john30
2016-12-04 18:03:43 +01:00
parent 8eb2f72258
commit b4a596da5a
2 changed files with 191 additions and 191 deletions
+96 -96
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@@ -1,96 +1,96 @@
/*
* ebusd - daemon for communication with eBUS heating systems.
* Copyright (C) 2016 John Baier <ebusd@ebusd.eu>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "rotatefile.h"
#include "clock.h"
#include <cstdlib>
#include <cstring>
#include <fcntl.h>
#include <fstream>
#include <sys/ioctl.h>
#include <sys/file.h>
#include <errno.h>
using namespace std;
RotateFile::~RotateFile()
{
if (m_stream) {
fclose(m_stream);
m_stream = NULL;
}
}
bool RotateFile::setEnabled(bool enabled)
{
if (enabled==m_enabled) {
return false;
}
m_enabled = enabled;
if (m_stream) {
fclose(m_stream);
m_stream = NULL;
}
if (enabled) {
m_stream = fopen(m_fileName.c_str(), m_textMode ? "w" : "wb");
m_fileSize = 0;
}
return true;
}
void RotateFile::write(unsigned char* value, unsigned int size, bool received)
{
if (!m_enabled || !m_stream) {
return;
}
if (m_textMode) {
struct timespec ts;
struct tm* tm;
clockGettime(&ts);
tm = localtime(&ts.tv_sec);
char* buf;
fprintf(m_stream, "%04d-%02d-%02d %02d:%02d:%02d.%03ld %c",
tm->tm_year+1900, tm->tm_mon+1, tm->tm_mday,
tm->tm_hour, tm->tm_min, tm->tm_sec, ts.tv_nsec/1000000,
received ? '<' : '>'
);
for (unsigned int pos=0; pos<size; pos++) {
fprintf(m_stream, "%2.2x ", value[pos]);
}
fprintf(m_stream, "\n");
m_fileSize += 25+3*size+1;
} else {
fwrite(value, (streamsize)size, 1, m_stream);
m_fileSize += size;
}
if ((m_fileSize%1024) == 0) {
fflush(m_stream);
}
if (m_fileSize >= m_maxSize * 1024) {
string oldfile = string(m_fileName)+".old";
if (rename(m_fileName.c_str(), oldfile.c_str()) == 0) {
fclose(m_stream);
m_stream = fopen(m_fileName.c_str(), m_textMode ? "w" : "wb");
m_fileSize = 0;
}
}
}
/*
* ebusd - daemon for communication with eBUS heating systems.
* Copyright (C) 2016 John Baier <ebusd@ebusd.eu>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "rotatefile.h"
#include "clock.h"
#include <cstdlib>
#include <cstring>
#include <fcntl.h>
#include <fstream>
#include <sys/ioctl.h>
#include <sys/file.h>
#include <errno.h>
using namespace std;
RotateFile::~RotateFile()
{
if (m_stream) {
fclose(m_stream);
m_stream = NULL;
}
}
bool RotateFile::setEnabled(bool enabled)
{
if (enabled==m_enabled) {
return false;
}
m_enabled = enabled;
if (m_stream) {
fclose(m_stream);
m_stream = NULL;
}
if (enabled) {
m_stream = fopen(m_fileName.c_str(), m_textMode ? "w" : "wb");
m_fileSize = 0;
}
return true;
}
void RotateFile::write(unsigned char* value, unsigned int size, bool received)
{
if (!m_enabled || !m_stream) {
return;
}
if (m_textMode) {
struct timespec ts;
struct tm* tm;
clockGettime(&ts);
tm = localtime(&ts.tv_sec);
char* buf;
fprintf(m_stream, "%04d-%02d-%02d %02d:%02d:%02d.%03ld %c",
tm->tm_year+1900, tm->tm_mon+1, tm->tm_mday,
tm->tm_hour, tm->tm_min, tm->tm_sec, ts.tv_nsec/1000000,
received ? '<' : '>'
);
for (unsigned int pos=0; pos<size; pos++) {
fprintf(m_stream, "%2.2x ", value[pos]);
}
fprintf(m_stream, "\n");
m_fileSize += 25+3*size+1;
} else {
fwrite(value, (streamsize)size, 1, m_stream);
m_fileSize += size;
}
if ((m_fileSize%1024) == 0) {
fflush(m_stream);
}
if (m_fileSize >= m_maxSize * 1024) {
string oldfile = string(m_fileName)+".old";
if (rename(m_fileName.c_str(), oldfile.c_str()) == 0) {
fclose(m_stream);
m_stream = fopen(m_fileName.c_str(), m_textMode ? "w" : "wb");
m_fileSize = 0;
}
}
}
+95 -95
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@@ -1,95 +1,95 @@
/*
* ebusd - daemon for communication with eBUS heating systems.
* Copyright (C) 2016 John Baier <ebusd@ebusd.eu>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef LIBUTILS_ROTATEFILE_H_
#define LIBUTILS_ROTATEFILE_H_
#include <unistd.h>
#include <iostream>
#include <fstream>
/** @file rotatefile.h
* Helpers for writing to rotating files.
*/
using namespace std;
/**
* Helper class for writing to a rotating file with maximum size.
*/
class RotateFile
{
public:
/**
* Construct a new instance.
* @param fileName the name of the file write to.
* @param maxSize the maximum size of the file to write to.
* @param textMode whether to write each byte with prefixed timestamp and direction as text.
*/
RotateFile(const string fileName, const long maxSize, const bool textMode=false)
: m_enabled(false), m_fileName(fileName), m_maxSize(maxSize), m_textMode(textMode), m_stream(), m_fileSize(0) {}
/**
* Destructor.
*/
virtual ~RotateFile();
/**
* Enable or disable writing to the file.
* @param enabled @p true to enable writing to the file, @p false to disable it.
* @return @p true when the state was changed, @p false otherwise.
*/
bool setEnabled(bool enabled=true);
/**
* Return whether writing to the file is enabled.
* @return whether writing to the file is enabled.
*/
bool isEnabled() { return m_enabled; }
/**
* Write a number of bytes to the stream.
* @param value the pointer to the bytes to write.
* @param size the number of bytes to write.
* @param received @a true on reception, @a false on sending (only relevant in text mode).
*/
void write(unsigned char* value, unsigned int size, bool received=true);
private:
/** whether writing to the file is enabled. */
bool m_enabled;
/** the name of the file write to. */
const string m_fileName;
/** the maximum size of @a m_file, or 0 for infinite. */
const long m_maxSize;
/** whether to write each byte with prefixed timestamp and direction as text. */
const bool m_textMode;
/** the @a FILE to writing to. */
FILE* m_stream;
/** the number of bytes already written to the @a m_file. */
unsigned long m_fileSize;
};
#endif // LIBUTILS_ROTATEFILE_H_
/*
* ebusd - daemon for communication with eBUS heating systems.
* Copyright (C) 2016 John Baier <ebusd@ebusd.eu>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef LIBUTILS_ROTATEFILE_H_
#define LIBUTILS_ROTATEFILE_H_
#include <unistd.h>
#include <iostream>
#include <fstream>
/** @file rotatefile.h
* Helpers for writing to rotating files.
*/
using namespace std;
/**
* Helper class for writing to a rotating file with maximum size.
*/
class RotateFile
{
public:
/**
* Construct a new instance.
* @param fileName the name of the file write to.
* @param maxSize the maximum size of the file to write to.
* @param textMode whether to write each byte with prefixed timestamp and direction as text.
*/
RotateFile(const string fileName, const long maxSize, const bool textMode=false)
: m_enabled(false), m_fileName(fileName), m_maxSize(maxSize), m_textMode(textMode), m_stream(), m_fileSize(0) {}
/**
* Destructor.
*/
virtual ~RotateFile();
/**
* Enable or disable writing to the file.
* @param enabled @p true to enable writing to the file, @p false to disable it.
* @return @p true when the state was changed, @p false otherwise.
*/
bool setEnabled(bool enabled=true);
/**
* Return whether writing to the file is enabled.
* @return whether writing to the file is enabled.
*/
bool isEnabled() { return m_enabled; }
/**
* Write a number of bytes to the stream.
* @param value the pointer to the bytes to write.
* @param size the number of bytes to write.
* @param received @a true on reception, @a false on sending (only relevant in text mode).
*/
void write(unsigned char* value, unsigned int size, bool received=true);
private:
/** whether writing to the file is enabled. */
bool m_enabled;
/** the name of the file write to. */
const string m_fileName;
/** the maximum size of @a m_file, or 0 for infinite. */
const long m_maxSize;
/** whether to write each byte with prefixed timestamp and direction as text. */
const bool m_textMode;
/** the @a FILE to writing to. */
FILE* m_stream;
/** the number of bytes already written to the @a m_file. */
unsigned long m_fileSize;
};
#endif // LIBUTILS_ROTATEFILE_H_