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//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2026
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#include "td/utils/Status.h"
#include "td/utils/SliceBuilder.h"
#if TD_PORT_WINDOWS
#include "td/utils/port/wstring_convert.h"
#endif
#if TD_PORT_POSIX
#include "td/utils/port/thread_local.h"
#include <string.h>
#include <cstring>
#endif
namespace td {
#if TD_PORT_POSIX
CSlice strerror_safe(int code) {
const size_t size = 1000;
static TD_THREAD_LOCAL char *buf;
init_thread_local<char[]>(buf, size);
#if !defined(__GLIBC__) || ((_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600) && !_GNU_SOURCE)
strerror_r(code, buf, size);
return CSlice(buf, buf + std::strlen(buf));
#else
return CSlice(strerror_r(code, buf, size));
#endif
}
#endif
#if TD_PORT_WINDOWS
string winerror_to_string(int code) {
const size_t size = 1000;
wchar_t wbuf[size];
auto res_size = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, nullptr, code, 0, wbuf, size - 1, nullptr);
if (res_size == 0) {
return "Unknown Windows error";
}
while (res_size != 0 && (wbuf[res_size - 1] == '\n' || wbuf[res_size - 1] == '\r')) {
res_size--;
}
auto error_message = from_wstring(wbuf, res_size);
if (error_message.is_error()) {
return "Invalid Windows error";
}
return error_message.move_as_ok();
}
#endif
Status Status::move_as_error_prefix(Slice prefix) const {
CHECK(is_error());
return move_as_error_prefix_unsafe(prefix);
}
Status Status::move_as_error_prefix_unsafe(Slice prefix) const {
Info info = get_info();
switch (info.error_type) {
case ErrorType::General:
return Error(code(), PSLICE() << prefix << message());
case ErrorType::Os:
return Status(false, ErrorType::Os, code(), PSLICE() << prefix << message());
default:
UNREACHABLE();
return {};
}
}
Status Status::move_as_error_suffix(Slice suffix) const {
CHECK(is_error());
return move_as_error_suffix_unsafe(suffix);
}
Status Status::move_as_error_suffix_unsafe(Slice suffix) const {
Info info = get_info();
switch (info.error_type) {
case ErrorType::General:
return Error(code(), PSLICE() << message() << suffix);
case ErrorType::Os:
return Status(false, ErrorType::Os, code(), PSLICE() << message() << suffix);
default:
UNREACHABLE();
return {};
}
}
} // namespace td
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