120 lines
3.5 KiB
C++
120 lines
3.5 KiB
C++
////////////////////////////////////////////////////////////////////////////////
|
|
// Copyright 2017 Google LLC.
|
|
//
|
|
// This software is licensed under the terms defined in the Widevine Master
|
|
// License Agreement. For a copy of this agreement, please contact
|
|
// widevine-licensing@google.com.
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef UTIL_STATUS_H_
|
|
#define UTIL_STATUS_H_
|
|
|
|
#include <string>
|
|
|
|
#include "util/error_space.h"
|
|
|
|
namespace widevine {
|
|
namespace util {
|
|
namespace error {
|
|
|
|
enum StatusCode {
|
|
// Success.
|
|
OK = 0,
|
|
|
|
// Client specified an invalid argument.
|
|
INVALID_ARGUMENT = 3,
|
|
|
|
// Some requested entity (e.g., file or directory) was not found.
|
|
NOT_FOUND = 5,
|
|
|
|
// Some entity that we attempted to create (e.g., file or directory)
|
|
// already exists.
|
|
ALREADY_EXISTS = 6,
|
|
|
|
// The caller does not have permission to execute the specified
|
|
// operation. PERMISSION_DENIED must not be used for rejections
|
|
// caused by exhausting some resource (use RESOURCE_EXHAUSTED
|
|
// instead for those errors).
|
|
PERMISSION_DENIED = 7,
|
|
|
|
// Operation is not implemented or not supported/enabled in this service.
|
|
UNIMPLEMENTED = 12,
|
|
|
|
// Internal errors. Means some invariants expected by underlying
|
|
// system has been broken. If you see one of these errors,
|
|
// something is very broken.
|
|
INTERNAL = 13,
|
|
|
|
// Operation is not implemented or not supported/enabled in this service.
|
|
UNAVAILABLE = 14,
|
|
|
|
// Number of generic (non license related) errors.
|
|
NUM_ERRORS,
|
|
};
|
|
|
|
} // namespace error
|
|
|
|
class GenericErrorSpace : public ErrorSpaceImpl<GenericErrorSpace> {
|
|
public:
|
|
static std::string SpaceName();
|
|
static std::string CodeToString(int code);
|
|
};
|
|
|
|
class Status {
|
|
public:
|
|
Status() : status_code_(error::OK) {}
|
|
~Status() {}
|
|
explicit Status(error::StatusCode c) : status_code_(c) {}
|
|
Status(error::StatusCode c, const std::string& error_message)
|
|
: status_code_(c), error_message_(error_message) {}
|
|
Status(const ErrorSpace* e, error::StatusCode c,
|
|
const std::string& error_message) {
|
|
SetError(e, c, error_message);
|
|
}
|
|
Status(const ErrorSpace* e, int error, const std::string& error_message) {
|
|
SetError(e, error, error_message);
|
|
}
|
|
void SetError(const ErrorSpace* e, int c, const std::string& error_message) {
|
|
error_space_ = e;
|
|
status_code_ = c;
|
|
error_message_ = error_message;
|
|
}
|
|
|
|
bool ok() const { return status_code_ == error::OK; }
|
|
const ErrorSpace* error_space() const { return error_space_; }
|
|
static const ErrorSpace* canonical_space() {
|
|
return GenericErrorSpace::Get();
|
|
}
|
|
std::string ToString() const;
|
|
std::string error_message() const { return error_message_; }
|
|
int error_code() const { return status_code_; }
|
|
|
|
private:
|
|
const ErrorSpace* error_space_ = GenericErrorSpace::Get();
|
|
int status_code_;
|
|
std::string error_message_;
|
|
}; // class Status
|
|
|
|
inline Status OkStatus() { return Status(); }
|
|
|
|
// Here error_message_ is ignored during comparison.
|
|
inline bool operator==(const Status& s1, const Status& s2) {
|
|
return s1.error_space() == s2.error_space() &&
|
|
s1.error_code() == s2.error_code();
|
|
}
|
|
inline bool operator!=(const Status& s1, const Status& s2) {
|
|
return s1.error_space() != s2.error_space() ||
|
|
s1.error_code() != s2.error_code();
|
|
}
|
|
|
|
// Prints a human-readable representation of 'x' to 'os'.
|
|
std::ostream& operator<<(std::ostream& os, const Status& x);
|
|
|
|
#define CHECK_OK(expression) CHECK_EQ(util::error::OK, expression.error_code())
|
|
|
|
|
|
} // namespace util
|
|
} // namespace widevine
|
|
|
|
#endif // UTIL_STATUS_H_
|