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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
//
// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.
#include "rocksdb/status.h"
#include <stdio.h>
#ifdef OS_WIN
#include <string.h>
#endif
#include <cstring>
#include "port/port.h"
namespace rocksdb {
const char* Status::CopyState(const char* state) {
#ifdef OS_WIN
const size_t cch = std::strlen(state) + 1; // +1 for the null terminator
char* result = new char[cch];
errno_t ret;
ret = strncpy_s(result, cch, state, cch - 1);
result[cch - 1] = '\0';
assert(ret == 0);
return result;
#else
const size_t cch = std::strlen(state) + 1; // +1 for the null terminator
return std::strncpy(new char[cch], state, cch);
#endif
}
static const char* msgs[static_cast<int>(Status::kMaxSubCode)] = {
"", // kNone
"Timeout Acquiring Mutex", // kMutexTimeout
"Timeout waiting to lock key", // kLockTimeout
"Failed to acquire lock due to max_num_locks limit", // kLockLimit
"No space left on device", // kNoSpace
"Deadlock", // kDeadlock
"Stale file handle", // kStaleFile
"Memory limit reached", // kMemoryLimit
"Space limit reached", // kSpaceLimit
"No such file or directory", // kPathNotFound
};
Status::Status(Code _code, SubCode _subcode, const Slice& msg,
const Slice& msg2)
: code_(_code), subcode_(_subcode), sev_(kNoError) {
assert(code_ != kOk);
assert(subcode_ != kMaxSubCode);
const size_t len1 = msg.size();
const size_t len2 = msg2.size();
const size_t size = len1 + (len2 ? (2 + len2) : 0);
char* const result = new char[size + 1]; // +1 for null terminator
memcpy(result, msg.data(), len1);
if (len2) {
result[len1] = ':';
result[len1 + 1] = ' ';
memcpy(result + len1 + 2, msg2.data(), len2);
}
result[size] = '\0'; // null terminator for C style string
state_ = result;
}
std::string Status::ToString() const {
char tmp[30];
const char* type;
switch (code_) {
case kOk:
return "OK";
case kNotFound:
type = "NotFound: ";
break;
case kCorruption:
type = "Corruption: ";
break;
case kNotSupported:
type = "Not implemented: ";
break;
case kInvalidArgument:
type = "Invalid argument: ";
break;
case kIOError:
type = "IO error: ";
break;
case kMergeInProgress:
type = "Merge in progress: ";
break;
case kIncomplete:
type = "Result incomplete: ";
break;
case kShutdownInProgress:
type = "Shutdown in progress: ";
break;
case kTimedOut:
type = "Operation timed out: ";
break;
case kAborted:
type = "Operation aborted: ";
break;
case kBusy:
type = "Resource busy: ";
break;
case kExpired:
type = "Operation expired: ";
break;
case kTryAgain:
type = "Operation failed. Try again.: ";
break;
default:
snprintf(tmp, sizeof(tmp), "Unknown code(%d): ",
static_cast<int>(code()));
type = tmp;
break;
}
std::string result(type);
if (subcode_ != kNone) {
uint32_t index = static_cast<int32_t>(subcode_);
assert(sizeof(msgs) > index);
result.append(msgs[index]);
}
if (state_ != nullptr) {
result.append(state_);
}
return result;
}
} // namespace rocksdb
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