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LastError.c
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LastError.c
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/*
* Copyright (C) 2008, 2009 Wayne Meissner
*
* This file is part of jffi.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*
* Alternatively, you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this work. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdlib.h>
#include <errno.h>
#ifdef _WIN32
# include <windows.h>
#endif
#include <jni.h>
#include "LastError.h"
#include "CallContext.h"
#if defined(_WIN32)
static __thread int last_error = 0;
#endif
/*
* Class: com_kenai_jffi_Foreign
* Method: getLastError
* Signature: ()I
*/
JNIEXPORT jint JNICALL
Java_com_kenai_jffi_Foreign_getLastError(JNIEnv* env, jobject self)
{
#ifdef _WIN32
// printf("Getting ERRNO: %d on thread %d\n", last_error, (int)GetCurrentThreadId());
return last_error;
#else
return thread_data_get()->error;
#endif
}
/*
* Class: com_kenai_jffi_Foreign
* Method: setLastError
* Signature: (I)V
*/
JNIEXPORT void JNICALL
Java_com_kenai_jffi_Foreign_setLastError(JNIEnv* env, jobject self, jint value)
{
#ifdef _WIN32
// printf("Setting ERRNO: %d on thread %d\n", value, (int)GetCurrentThreadId());
SetLastError(value);
last_error = value;
#else
thread_data_get()->error = errno = value;
#endif
}
void
jffi_save_errno(void)
{
#ifdef _WIN32
last_error = GetLastError();
// printf("JFFI Saving ERRNO: %d on thread %d\n", last_error, (int)GetCurrentThreadId());
#else
thread_data_get()->error = errno;
#endif
}
void
jffi_save_errno_ctx(CallContext* ctx)
{
#ifdef _WIN32
if (unlikely(ctx->error_fn != NULL)) {
last_error = (*ctx->error_fn)();
} else {
last_error = GetLastError();
}
#else
if (unlikely(ctx->error_fn != NULL)) {
thread_data_get()->error = (*ctx->error_fn)();
} else {
thread_data_get()->error = errno;
}
#endif
}