transmission/libtransmission/error.cc

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/*
* This file Copyright (C) 2013-2014 Mnemosyne LLC
*
* It may be used under the GNU GPL versions 2 or 3
* or any future license endorsed by Mnemosyne LLC.
*
*/
#include <string_view>
#include "transmission.h"
#include "error.h"
#include "tr-assert.h"
#include "tr-macros.h"
#include "utils.h"
void tr_error_free(tr_error* error)
{
if (error == nullptr)
{
return;
}
tr_free(error->message);
delete error;
}
void tr_error_set(tr_error** error, int code, std::string_view message)
{
if (error == nullptr)
{
return;
}
TR_ASSERT(*error == nullptr);
*error = new tr_error{ code, tr_strvDup(message) };
}
void tr_error_propagate(tr_error** new_error, tr_error** old_error)
{
TR_ASSERT(old_error != nullptr);
TR_ASSERT(*old_error != nullptr);
if (new_error != nullptr)
{
TR_ASSERT(*new_error == nullptr);
*new_error = *old_error;
*old_error = nullptr;
}
else
{
tr_error_clear(old_error);
}
}
void tr_error_clear(tr_error** error)
{
if (error == nullptr)
{
return;
}
tr_error_free(*error);
*error = nullptr;
}
void tr_error_prefix(tr_error** error, char const* prefix)
{
TR_ASSERT(prefix != nullptr);
if (error == nullptr || *error == nullptr)
{
return;
}
auto* err = *error;
auto* const new_message = tr_strvDup(tr_strvJoin(prefix, err->message));
tr_free(err->message);
err->message = new_message;
}