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#ifndef ADHOC_BUFFER_H
#define ADHOC_BUFFER_H
#include "intrusivePtrBase.h"
#include <string>
#include <vector>
#include <stdarg.h>
#include <boost/format.hpp>
#include <boost/shared_ptr.hpp>
#include "visibility.h"
class DLL_PUBLIC Buffer;
namespace std {
DLL_PUBLIC std::ostream & operator<<(std::ostream &, const Buffer &);
}
class DLL_PUBLIC Buffer : public virtual IntrusivePtrBase {
public:
enum CStringHandling { Use, Copy, Free };
typedef boost::intrusive_ptr<Buffer> Ptr;
typedef boost::intrusive_ptr<const Buffer> CPtr;
Buffer();
Buffer(const char * src, CStringHandling);
Buffer(char * src, CStringHandling);
Buffer(const std::string &);
~Buffer();
Buffer & operator+=(const char * str);
Buffer & operator+=(const std::string & str);
Buffer & operator=(const char * str);
Buffer & operator=(const std::string & str);
Buffer & operator=(const Buffer & str);
bool operator!() const;
operator bool() const;
operator std::string() const;
operator const char *() const;
void writeto(char * buf, size_t bufSize, size_t off) const;
friend std::ostream & std::operator<<(std::ostream &, const Buffer &);
Buffer & append(const char * str, CStringHandling h);
Buffer & append(char * str, CStringHandling h);
Buffer & append(const std::string & str);
Buffer & appendf(const char * fmt, ...) __attribute__((format (printf, 2, 3)));
Buffer & vappendf(const char * fmt, va_list args);
template <typename ... Params>
Buffer & appendbf(const std::string & fmtstr, const Params & ... params)
{
return appendbf(*getFormat(fmtstr), params...);
}
template <typename Param, typename ... Params>
Buffer & appendbf(boost::format & fmt, const Param & param, const Params & ... params)
{
fmt % param;
return appendbf(fmt, params...);
}
Buffer & clear();
size_t length() const;
std::string str() const;
static boost::shared_ptr<boost::format> getFormat(const std::string & msgfmt);
private:
Buffer & appendbf(boost::format & fmt);
void DLL_PRIVATE flatten() const;
class DLL_PRIVATE FragmentBase : public virtual IntrusivePtrBase {
public:
virtual ~FragmentBase() = 0;
virtual size_t length() const = 0;
virtual char operator[](size_t) const = 0;
virtual const char * c_str() const = 0;
virtual std::string str() const = 0;
};
class DLL_PRIVATE CStringFragment : public FragmentBase {
public:
CStringFragment(const char *, CStringHandling);
CStringFragment(const char *, CStringHandling, size_t);
CStringFragment(char *, CStringHandling);
CStringFragment(char *, CStringHandling, size_t);
~CStringFragment();
size_t length() const;
char operator[](size_t) const;
const char * c_str() const;
std::string str() const;
private:
const size_t len; // Excluding NULL term
const char * buf;
const CStringHandling handling;
};
class DLL_PRIVATE StringFragment : public FragmentBase {
public:
StringFragment(const std::string &);
size_t length() const;
char operator[](size_t) const;
const char * c_str() const;
std::string str() const;
private:
const std::string buf;
};
typedef boost::intrusive_ptr<FragmentBase> FragmentPtr;
typedef std::vector<FragmentPtr> Content;
mutable Content content;
};
Buffer::FragmentBase::~FragmentBase() = default;
#endif
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