Atmosphere/libraries/libstratosphere/source/fs/fs_context.cpp

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/*
* Copyright (c) Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stratosphere.hpp>
namespace ams::fs {
namespace {
constinit bool g_auto_abort_enabled = true;
/* NOTE: This generates a global constructor. */
os::SdkThreadLocalStorage g_context_tls;
}
void SetEnabledAutoAbort(bool enabled) {
g_auto_abort_enabled = enabled;
}
AbortSpecifier DefaultResultHandler(Result result) {
AMS_UNUSED(result);
if (g_auto_abort_enabled) {
return AbortSpecifier::Default;
} else {
return AbortSpecifier::Return;
}
}
AbortSpecifier AlwaysReturnResultHandler(Result result) {
AMS_UNUSED(result);
return AbortSpecifier::Return;
}
constinit FsContext g_default_context(DefaultResultHandler);
constinit FsContext g_always_return_context(AlwaysReturnResultHandler);
void SetDefaultFsContextResultHandler(const ResultHandler handler) {
if (handler == nullptr) {
g_default_context.SetHandler(DefaultResultHandler);
} else {
g_default_context.SetHandler(handler);
}
}
const FsContext *GetCurrentThreadFsContext() {
const FsContext *context = reinterpret_cast<const FsContext *>(g_context_tls.GetValue());
if (context == nullptr) {
context = std::addressof(g_default_context);
}
return context;
}
void SetCurrentThreadFsContext(const FsContext *context) {
g_context_tls.SetValue(reinterpret_cast<uintptr_t>(context));
}
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ScopedAutoAbortDisabler::ScopedAutoAbortDisabler() : m_prev_context(GetCurrentThreadFsContext()) {
SetCurrentThreadFsContext(std::addressof(g_always_return_context));
}
}