78 lines
1.9 KiB
C++
78 lines
1.9 KiB
C++
// 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 "leveldb/status.h"
|
|
|
|
#include <stdio.h>
|
|
|
|
#include "port/port.h"
|
|
|
|
namespace leveldb {
|
|
|
|
const char* Status::CopyState(const char* state) {
|
|
uint32_t size;
|
|
memcpy(&size, state, sizeof(size));
|
|
char* result = new char[size + 5];
|
|
memcpy(result, state, size + 5);
|
|
return result;
|
|
}
|
|
|
|
Status::Status(Code code, const Slice& msg, const Slice& msg2) {
|
|
assert(code != kOk);
|
|
const uint32_t len1 = static_cast<uint32_t>(msg.size());
|
|
const uint32_t len2 = static_cast<uint32_t>(msg2.size());
|
|
const uint32_t size = len1 + (len2 ? (2 + len2) : 0);
|
|
char* result = new char[size + 5];
|
|
memcpy(result, &size, sizeof(size));
|
|
result[4] = static_cast<char>(code);
|
|
memcpy(result + 5, msg.data(), len1);
|
|
if (len2) {
|
|
result[5 + len1] = ':';
|
|
result[6 + len1] = ' ';
|
|
memcpy(result + 7 + len1, msg2.data(), len2);
|
|
}
|
|
state_ = result;
|
|
}
|
|
|
|
std::string Status::ToString() const {
|
|
if (state_ == nullptr) {
|
|
return "OK";
|
|
} else {
|
|
char tmp[30];
|
|
const char* type;
|
|
switch (code()) {
|
|
case kOk:
|
|
type = "OK";
|
|
break;
|
|
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;
|
|
default:
|
|
snprintf(tmp, sizeof(tmp),
|
|
"Unknown code(%d): ", static_cast<int>(code()));
|
|
type = tmp;
|
|
break;
|
|
}
|
|
std::string result(type);
|
|
uint32_t length;
|
|
memcpy(&length, state_, sizeof(length));
|
|
result.append(state_ + 5, length);
|
|
return result;
|
|
}
|
|
}
|
|
|
|
} // namespace leveldb
|