From c9bfccc35345ce58fb5774d4b0b6a9868b262c0a Mon Sep 17 00:00:00 2001 From: giorgio Date: Wed, 5 Sep 2012 08:31:30 +0000 Subject: git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1381061 13f79535-47bb-0310-9956-ffa450edef68 --- .../branches/lightweight-sca/kernel/fstream.hpp | 404 +++++++++++++++++++++ 1 file changed, 404 insertions(+) create mode 100644 sca-cpp/branches/lightweight-sca/kernel/fstream.hpp (limited to 'sca-cpp/branches/lightweight-sca/kernel/fstream.hpp') diff --git a/sca-cpp/branches/lightweight-sca/kernel/fstream.hpp b/sca-cpp/branches/lightweight-sca/kernel/fstream.hpp new file mode 100644 index 0000000000..4f7f5152aa --- /dev/null +++ b/sca-cpp/branches/lightweight-sca/kernel/fstream.hpp @@ -0,0 +1,404 @@ +/* + * 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 +#include + +#ifdef WANT_HTTPD_LOG +#include +#include +#include +#define APR_WANT_STRFUNC +#include +#include + +#include +// Hack to workaround compile error with CLang/LLVM +#undef strtoul +// Hack to workaround compile error with HTTPD 2.3.8 +#define new new_ +#include +#undef new +#include +#include + +#else + +#include +#include +#include + +#ifdef WANT_THREADS +#include +#endif + +#endif + +#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) { + } + + const ofstream& operator=(const ofstream& os) { + if(this == &os) + return *this; + file = os.file; + owner = false; + return *this; + } + + ~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) { + } + + const ifstream& operator=(const ifstream& is) { + if(this == &is) + return *this; + file = is.file; + owner = false; + return *this; + } + + ~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. + */ + +#ifdef WANT_HTTPD_LOG + +/* + * HTTPD-based log stream. + */ +class loghstream : public ostream { +public: + loghstream(const int level) : level(level), len(0) { + } + + ~loghstream() { + } + + ostream& vprintf(const char* fmt, ...) { + va_list args; + va_start (args, fmt); + const int l = vsnprintf(buf + len, (sizeof(buf) - 1) - len, fmt, args); + va_end (args); + len += l; + if (len > (int)(sizeof(buf) - 1)) + len = sizeof(buf) - 1; + return *this; + } + + ostream& write(const string& s) { + if (s != "\n") + return this->vprintf("%s", c_str(s)); + buf[len] = '\0'; + ap_log_error(NULL, 0, -1, level, 0, ap_server_conf, "%s", buf); + len = 0; + return *this; + } + + ostream& flush() { + return *this; + } + +private: + const int level; + int len; + char buf[2049]; +}; + +/** + * Info and failure log streams. + */ +loghstream cinfo(APLOG_INFO); +loghstream cfailure(APLOG_ERR); + +#ifdef WANT_MAINTAINER_LOG + +/** + * Debug log stream. + */ +loghstream cdebug(APLOG_DEBUG); + +/** + * Return true if debug log is enabled. + */ +#define debug_islogging() (bool)(APLOG_MODULE_IS_LEVEL(ap_server_conf, APLOG_NO_MODULE, APLOG_DEBUG)) + +#endif + +#else + +/** + * Format the current time. + */ +const string logTime() { + struct timeval tv; + gettimeofday(&tv, NULL); + const time_t t = tv.tv_sec; + const tm* lt = localtime(&t); + char ft[32]; + strftime(ft, 20, "%a %b %d %H:%M:%S", lt); + sprintf(ft + 19, ".%06lu ", (unsigned long)tv.tv_usec); + strftime(ft + 27, 5, "%Y", lt); + return ft; +} + +/* + * File-based log stream. + */ +class logfstream : public ostream { +public: + logfstream(FILE* file, const string& type) : file(file), type(type), head(false) { + } + + logfstream(const logfstream& os) : file(os.file), type(os.type), head(os.head) { + } + + ~logfstream() { + } + + ostream& vprintf(const char* fmt, ...) { + whead(); + va_list args; + va_start (args, fmt); + vfprintf (file, fmt, args); + va_end (args); + return *this; + } + + ostream& write(const string& s) { + whead(); + fwrite(c_str(s), 1, length(s), file); + if (s == "\n") + head = false; + return *this; + } + + ostream& flush() { + fflush(file); + return *this; + } + +private: + FILE* file; + const string type; + bool head; + + const unsigned long tid() const { +#ifdef WANT_THREADS + return (unsigned long)pthread_self(); +#else + return 0; +#endif + } + + ostream& whead() { + if (head) + return *this; + head = true; + *this << "[" << logTime() << "] [" << type << "] [pid " << (unsigned long)getpid() << ":tid " << tid() << "] "; + return *this; + } +}; + +/** + * Info and failure log streams. + */ +logfstream cinfo(stderr, "info"); +logfstream cfailure(stderr, "error"); + +#ifdef WANT_MAINTAINER_LOG + +/** + * Debug log stream. + */ +logfstream cdebug(stderr, "debug"); + +/** + * Return true if debug log is enabled. + */ +bool debug_isLoggingSet = false; +bool debug_isLoggingEnv = false; + +const bool debug_isLogging() { + if (debug_isLoggingSet) + return debug_isLoggingEnv; + debug_isLoggingEnv = getenv("TUSCANY_DEBUG_LOG") != NULL; + return debug_isLoggingEnv; +} + +#define debug_islogging() debug_isLogging() + +#endif + +#endif + +#ifdef WANT_MAINTAINER_LOG + +/** + * Log a debug message. + */ +const bool debugLog(const string& msg) { + gc_scoped_pool p; + cdebug << msg << endl; + return true; +} + +/** + * Log a debug message and a value. + */ +template const bool debugLog(const V& v, const string& msg) { + gc_scoped_pool p; + cdebug << msg << ": " << v << endl; + return true; +} + +/** + * Log a debug message and two values. + */ +template const bool debugLog(const V& v, const W& w, const string& msg) { + gc_scoped_pool p; + cdebug << msg << ": " << v << " : " << w << endl; + return true; +} + +#define debug(...) do { if (debug_islogging()) tuscany::debugLog(__VA_ARGS__); } while(0) + +#else + +#define debug_islogging() false +#define debug(...) + +#endif + +} + +#endif /* tuscany_fstream_hpp */ -- cgit v1.2.3