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#include "libipc/buffer.h"
#include "libipc/utility/pimpl.h"
#include <cstring>
namespace ipc {
bool operator==(buffer const & b1, buffer const & b2) {
return (b1.size() == b2.size()) && (std::memcmp(b1.data(), b2.data(), b1.size()) == 0);
}
bool operator!=(buffer const & b1, buffer const & b2) {
return !(b1 == b2);
}
class buffer::buffer_ : public pimpl<buffer_> {
public:
void* p_;
std::size_t s_;
void* a_;
buffer::destructor_t d_;
buffer_(void* p, std::size_t s, buffer::destructor_t d, void* a)
: p_(p), s_(s), a_(a), d_(d) {
}
~buffer_() {
if (d_ == nullptr) return;
d_((a_ == nullptr) ? p_ : a_, s_);
}
};
buffer::buffer()
: buffer(nullptr, 0, nullptr, nullptr) {
}
buffer::buffer(void* p, std::size_t s, destructor_t d)
: p_(p_->make(p, s, d, nullptr)) {
}
buffer::buffer(void* p, std::size_t s, destructor_t d, void* additional)
: p_(p_->make(p, s, d, additional)) {
}
buffer::buffer(void* p, std::size_t s)
: buffer(p, s, nullptr) {
}
buffer::buffer(char const & c)
: buffer(const_cast<char*>(&c), 1) {
}
buffer::buffer(buffer&& rhs)
: buffer() {
swap(rhs);
}
buffer::~buffer() {
p_->clear();
}
void buffer::swap(buffer& rhs) {
std::swap(p_, rhs.p_);
}
buffer& buffer::operator=(buffer rhs) {
swap(rhs);
return *this;
}
bool buffer::empty() const noexcept {
return (impl(p_)->p_ == nullptr) || (impl(p_)->s_ == 0);
}
void* buffer::data() noexcept {
return impl(p_)->p_;
}
void const * buffer::data() const noexcept {
return impl(p_)->p_;
}
std::size_t buffer::size() const noexcept {
return impl(p_)->s_;
}
} // namespace ipc
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