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Copy pathhelpers.h
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117 lines (100 loc) · 3.76 KB
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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you 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.
#pragma once
#include <assert.h>
#include <string.h>
#include "arrow/c/abi.h"
#ifdef __cplusplus
extern "C" {
#endif
/// Query whether the C schema is released
inline int ArrowSchemaIsReleased(const struct ArrowSchema* schema) {
return schema->release == NULL;
}
/// Mark the C schema released (for use in release callbacks)
inline void ArrowSchemaMarkReleased(struct ArrowSchema* schema) {
schema->release = NULL;
}
/// Move the C schema from `src` to `dest`
///
/// Note `dest` must *not* point to a valid schema already, otherwise there
/// will be a memory leak.
inline void ArrowSchemaMove(struct ArrowSchema* src, struct ArrowSchema* dest) {
assert(dest != src);
assert(!ArrowSchemaIsReleased(src));
memcpy(dest, src, sizeof(struct ArrowSchema));
ArrowSchemaMarkReleased(src);
}
/// Release the C schema, if necessary, by calling its release callback
inline void ArrowSchemaRelease(struct ArrowSchema* schema) {
if (!ArrowSchemaIsReleased(schema)) {
schema->release(schema);
assert(ArrowSchemaIsReleased(schema));
}
}
/// Query whether the C array is released
inline int ArrowArrayIsReleased(const struct ArrowArray* array) {
return array->release == NULL;
}
/// Mark the C array released (for use in release callbacks)
inline void ArrowArrayMarkReleased(struct ArrowArray* array) { array->release = NULL; }
/// Move the C array from `src` to `dest`
///
/// Note `dest` must *not* point to a valid array already, otherwise there
/// will be a memory leak.
inline void ArrowArrayMove(struct ArrowArray* src, struct ArrowArray* dest) {
assert(dest != src);
assert(!ArrowArrayIsReleased(src));
memcpy(dest, src, sizeof(struct ArrowArray));
ArrowArrayMarkReleased(src);
}
/// Release the C array, if necessary, by calling its release callback
inline void ArrowArrayRelease(struct ArrowArray* array) {
if (!ArrowArrayIsReleased(array)) {
array->release(array);
assert(ArrowArrayIsReleased(array));
}
}
/// Query whether the C array stream is released
inline int ArrowArrayStreamIsReleased(const struct ArrowArrayStream* stream) {
return stream->release == NULL;
}
/// Mark the C array stream released (for use in release callbacks)
inline void ArrowArrayStreamMarkReleased(struct ArrowArrayStream* stream) {
stream->release = NULL;
}
/// Move the C array stream from `src` to `dest`
///
/// Note `dest` must *not* point to a valid stream already, otherwise there
/// will be a memory leak.
inline void ArrowArrayStreamMove(struct ArrowArrayStream* src,
struct ArrowArrayStream* dest) {
assert(dest != src);
assert(!ArrowArrayStreamIsReleased(src));
memcpy(dest, src, sizeof(struct ArrowArrayStream));
ArrowArrayStreamMarkReleased(src);
}
/// Release the C array stream, if necessary, by calling its release callback
inline void ArrowArrayStreamRelease(struct ArrowArrayStream* stream) {
if (!ArrowArrayStreamIsReleased(stream)) {
stream->release(stream);
assert(ArrowArrayStreamIsReleased(stream));
}
}
#ifdef __cplusplus
}
#endif