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tdutils/td/utils/Status.cpp

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+/*
+    This file is part of TON Blockchain Library.
+
+    TON Blockchain Library is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 2 of the License, or
+    (at your option) any later version.
+
+    TON Blockchain Library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with TON Blockchain Library.  If not, see <http://www.gnu.org/licenses/>.
+
+    Copyright 2017-2019 Telegram Systems LLP
+*/
+#include "td/utils/Status.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--;
+  }
+  return from_wstring(wbuf, res_size).ok();
+}
+#endif
+
+}  // namespace td