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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
/* $Rev$ $Date$ */
#ifndef tuscany_fstream_hpp
#define tuscany_fstream_hpp
/**
* File based streams.
*/
#include <stdio.h>
#include <stdarg.h>
#include <time.h>
#include "string.hpp"
#include "stream.hpp"
namespace tuscany {
/*
* Output stream backed by a FILE.
*/
class ofstream : public ostream {
public:
ofstream(const string& path) : file(fopen(c_str(path), "wb")), owner(true) {
}
ofstream(FILE* file) : file(file), owner(false) {
}
ofstream(const ofstream& os) : file(os.file), owner(false) {
}
~ofstream() {
if (!owner)
return;
if (file == NULL)
return;
fclose(file);
}
const bool fail() {
return file == NULL;
}
ofstream& vprintf(const char* fmt, ...) {
va_list args;
va_start (args, fmt);
vfprintf (file, fmt, args);
va_end (args);
return *this;
}
ofstream& write(const string& s) {
fwrite(c_str(s), 1, length(s), file);
return *this;
}
ofstream& flush() {
fflush(file);
return *this;
}
private:
FILE* file;
bool owner;
};
/*
* Input stream backed by a FILE.
*/
class ifstream : public istream {
public:
ifstream(const string& path) : file(fopen(c_str(path), "rb")), owner(true) {
}
ifstream(FILE* file) : file(file), owner(false) {
}
ifstream(const ifstream& is) : file(is.file), owner(false) {
}
~ifstream() {
if (!owner)
return;
if (file == NULL)
return;
fclose(file);
}
const size_t read(void* buf, size_t size) {
return fread(buf, 1, size, file);
}
const bool eof() {
return feof(file);
}
const bool fail() {
return file == NULL;
}
const int get() {
return fgetc(file);
}
const int peek() {
int c = fgetc(file);
if (c == -1)
return c;
ungetc(c, file);
return c;
}
private:
FILE* file;
bool owner;
};
/**
* Standard streams.
*/
ofstream cout(stdout);
ofstream cerr(stderr);
ifstream cin(stdin);
/**
* Streams used for logging.
*/
/**
* Format the current time.
*/
const string logTime() {
const time_t t = ::time(NULL);
const tm* lt = localtime(&t);
char ft[32];
strftime(ft, 31, "%a %b %d %H:%M:%S %Y", lt);
return ft;
}
/*
* Log stream.
*/
class logfstream : public ostream {
public:
logfstream(FILE* file, const string& type) : file(file), type(type), owner(false), head(false) {
}
logfstream(const logfstream& os) : file(os.file), type(type), owner(false), head(os.head) {
}
~logfstream() {
if (!owner)
return;
if (file == NULL)
return;
fclose(file);
}
logfstream& vprintf(const char* fmt, ...) {
whead();
va_list args;
va_start (args, fmt);
vfprintf (file, fmt, args);
va_end (args);
return *this;
}
logfstream& write(const string& s) {
whead();
fwrite(c_str(s), 1, length(s), file);
if (s == "\n")
head = false;
return *this;
}
logfstream& flush() {
fflush(file);
return *this;
}
private:
FILE* file;
const string type;
bool owner;
bool head;
logfstream& whead() {
if (head)
return *this;
head = true;
*this << "[" << logTime() << "] [" << type << "] ";
return *this;
}
};
/**
* Info and failure log streams.
*/
logfstream cinfo(stderr, "info");
logfstream cfailure(stderr, "error");
#ifdef WANT_MAINTAINER_MODE
/**
* Debug log stream and debug functions.
*/
logfstream cdebug(stderr, "debug");
/**
* Log a debug message.
*/
const bool debugLog(const string& msg) {
cdebug << msg << endl;
return true;
}
/**
* Log a debug message and a value.
*/
template<typename V> const bool debugLog(const V& v, const string& msg) {
cdebug << msg << ": " << v << endl;
return true;
}
#define debug(...) tuscany::debugLog(__VA_ARGS__)
#else
#define debug(...)
#endif
}
#endif /* tuscany_fstream_hpp */
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