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Merge pull request #30 from Intel-HLS/dev
Clang Support, Advanced I/O, Improved Performance and Bug Fixes
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| /** | ||
| * @file aio_request.h | ||
| * | ||
| * @section LICENSE | ||
| * | ||
| * The MIT License | ||
| * | ||
| * @copyright Copyright (c) 2016 MIT and Intel Corporation | ||
| * | ||
| * Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| * of this software and associated documentation files (the "Software"), to deal | ||
| * in the Software without restriction, including without limitation the rights | ||
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| * copies of the Software, and to permit persons to whom the Software is | ||
| * furnished to do so, subject to the following conditions: | ||
| * | ||
| * The above copyright notice and this permission notice shall be included in | ||
| * all copies or substantial portions of the Software. | ||
| * | ||
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
| * THE SOFTWARE. | ||
| * | ||
| * @section DESCRIPTION | ||
| * | ||
| * This file declares the AIO_Request struct. | ||
| */ | ||
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| #ifndef __AIO_REQUEST_H__ | ||
| #define __AIO_REQUEST_H__ | ||
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| #include <stdio.h> | ||
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| /** Describes an AIO (read or write) request. */ | ||
| struct AIO_Request { | ||
| /** | ||
| * An array of buffers, one for each attribute. These must be | ||
| * provided in the same order as the attributes specified in | ||
| * array initialization or when resetting the attributes. The case of | ||
| * variable-sized attributes is special. Instead of providing a single | ||
| * buffer for such an attribute, **two** must be provided: the second | ||
| * will hold the variable-sized cell values, whereas the first holds the | ||
| * start offsets of each cell in the second buffer. | ||
| */ | ||
| void** buffers_; | ||
| /** | ||
| * The sizes (in bytes) allocated by the user for the input | ||
| * buffers (there is a one-to-one correspondence). The function will attempt | ||
| * to write as many results as can fit in the buffers, and potentially | ||
| * alter the buffer size to indicate the size of the *useful* data written | ||
| * in the buffer. | ||
| */ | ||
| size_t* buffer_sizes_; | ||
| /** Function to be called upon completion of the request. */ | ||
| void *(*completion_handle_) (void*); | ||
| /** Data to be passed to the completion handle. */ | ||
| void* completion_data_; | ||
| /** A unique request id. */ | ||
| size_t id_; | ||
| /** | ||
| * Applicable only to read requests. | ||
| * Indicates whether a buffer has overflowed during a read request. | ||
| * If it is NULL, it will be ignored. Otherwise, it must be an array | ||
| * with as many elements as the number of buffers above. | ||
| */ | ||
| bool* overflow_; | ||
| /** | ||
| * The status of the AIO request. It can be one of the following: | ||
| * - TILEDB_AIO_COMPLETED | ||
| * The request is completed. | ||
| * - TILEDB_AIO_INPROGRESS | ||
| * The request is still in progress. | ||
| * - TILEDB_AIO_OVERFLOW | ||
| * At least one of the input buffers overflowed (applicable only to AIO | ||
| * read requests) | ||
| * - TILEDB_AIO_ERR | ||
| * The request caused an error (and thus was canceled). | ||
| */ | ||
| int* status_; | ||
| /** | ||
| * The subarray in which the array read/write will be | ||
| * constrained on. It should be a sequence of [low, high] pairs (one | ||
| * pair per dimension), whose type should be the same as that of the | ||
| * coordinates. If it is NULL, then the subarray is set to the entire | ||
| * array domain. For the case of writes, this is meaningful only for | ||
| * dense arrays, and specifically dense writes. | ||
| */ | ||
| const void* subarray_; | ||
| }; | ||
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| #endif | ||
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