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mdbx++: Implements std::ostream << operators.

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Change-Id: Iec4b6fc0344e3d3f3ff665ce28e23c2f315d8bdb
This commit is contained in:
Leonid Yuriev
2020-09-01 01:59:21 +03:00
parent 62be36cc9e
commit baeca4109a
2 changed files with 247 additions and 130 deletions
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68
mdbx.h++
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@@ -1261,16 +1261,31 @@ public:
//----------------------------------------------------------------------------
struct LIBMDBX_API_TYPE geometry {
enum : intptr_t {
enum : int64_t {
default_value = -1,
minimal_value = 0,
maximal_value = INTPTR_MAX,
KiB = intptr_t(1) << 10,
MiB = intptr_t(1) << 20,
/* TODO: enable for 64-bit builds only
GiB = intptr_t(1) << 30,
TiB = intptr_t(1) << 40, */
kB = 1000, ///< \f$10^{3}\f$ bytes
MB = kB * 1000, ///< \f$10^{6}\f$ bytes
GB = MB * 1000, ///< \f$10^{9}\f$ bytes
TB = GB * 1000, ///< \f$10^{12}\f$ bytes
PB = TB * 1000, ///< \f$10^{15}\f$ bytes
EB = PB * 1000, ///< \f$10^{18}\f$ bytes
KiB = 1024, ///< \f$2^{10}\f$ bytes
MiB = KiB << 10, ///< \f$2^{20}\f$ bytes
GiB = MiB << 10, ///< \f$2^{30}\f$ bytes
TiB = GiB << 10, ///< \f$2^{40}\f$ bytes
PiB = TiB << 10, ///< \f$2^{50}\f$ bytes
EiB = PiB << 10, ///< \f$2^{60}\f$ bytes
};
/// Tagged type for output to std::ostream
struct size {
intptr_t bytes;
constexpr size(intptr_t bytes) noexcept : bytes(bytes) {}
operator intptr_t() const noexcept { return bytes; }
};
intptr_t size_lower{minimal_value};
intptr_t size_now{default_value};
intptr_t size_upper{maximal_value};
@@ -1800,9 +1815,14 @@ LIBMDBX_API ::std::ostream &operator<<(::std::ostream &, const ::mdbx::slice &);
LIBMDBX_API ::std::ostream &operator<<(::std::ostream &, const ::mdbx::pair &);
template <class ALLOCATOR>
inline ::std::ostream &operator<<(::std::ostream &out,
const ::mdbx::buffer<ALLOCATOR> &) {
return out << "FIXME: " << __func__ << ", " __FILE__ ":" << __LINE__;
const ::mdbx::buffer<ALLOCATOR> &it) {
return (it.is_freestanding()
? out << "buf-" << it.headroom() << "." << it.tailroom()
: out << "ref-")
<< it.ref();
}
LIBMDBX_API ::std::ostream &operator<<(::std::ostream &,
const ::mdbx::env_ref::geometry::size &);
LIBMDBX_API ::std::ostream &operator<<(::std::ostream &,
const ::mdbx::env_ref::geometry &);
LIBMDBX_API ::std::ostream &
@@ -1822,21 +1842,11 @@ LIBMDBX_API ::std::ostream &operator<<(::std::ostream &,
const MDBX_log_level_t &);
LIBMDBX_API ::std::ostream &operator<<(::std::ostream &,
const MDBX_debug_flags_t &);
LIBMDBX_API ::std::ostream &operator<<(::std::ostream &, const MDBX_error_t &);
LIBMDBX_API ::std::ostream &operator<<(::std::ostream &,
const MDBX_env_flags_t &);
LIBMDBX_API ::std::ostream &operator<<(::std::ostream &,
const MDBX_txn_flags_t &);
LIBMDBX_API ::std::ostream &operator<<(::std::ostream &,
const MDBX_db_flags_t &);
LIBMDBX_API ::std::ostream &operator<<(::std::ostream &,
const MDBX_put_flags_t &);
LIBMDBX_API ::std::ostream &operator<<(::std::ostream &,
const MDBX_copy_flags_t &);
LIBMDBX_API ::std::ostream &operator<<(::std::ostream &,
const MDBX_cursor_op &);
LIBMDBX_API ::std::ostream &operator<<(::std::ostream &,
const MDBX_dbi_state_t &);
LIBMDBX_API ::std::ostream &operator<<(::std::ostream &, const ::mdbx::error &);
inline ::std::ostream &operator<<(::std::ostream &out,
const MDBX_error_t &errcode) {
return out << ::mdbx::error(errcode);
}
} // namespace mdbx
@@ -1872,14 +1882,10 @@ LIBMDBX_API string to_string(const ::mdbx::env_ref::create_parameters &);
LIBMDBX_API string to_string(const ::MDBX_log_level_t &);
LIBMDBX_API string to_string(const ::MDBX_debug_flags_t &);
LIBMDBX_API string to_string(const ::MDBX_error_t &);
LIBMDBX_API string to_string(const ::MDBX_env_flags_t &);
LIBMDBX_API string to_string(const ::MDBX_txn_flags_t &);
LIBMDBX_API string to_string(const ::MDBX_db_flags_t &);
LIBMDBX_API string to_string(const ::MDBX_put_flags_t &);
LIBMDBX_API string to_string(const ::MDBX_copy_flags_t &);
LIBMDBX_API string to_string(const ::MDBX_cursor_op &);
LIBMDBX_API string to_string(const ::MDBX_dbi_state_t &);
LIBMDBX_API string to_string(const ::mdbx::error &);
inline string to_string(const ::MDBX_error_t &errcode) {
return to_string(::mdbx::error(errcode));
}
} // namespace std