102 lines
6.6 KiB
C
102 lines
6.6 KiB
C
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/*
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* Copyright(c) 2006 to 2022 ZettaScale Technology and others
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*
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* This program and the accompanying materials are made available under the
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* terms of the Eclipse Public License v. 2.0 which is available at
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* http://www.eclipse.org/legal/epl-2.0, or the Eclipse Distribution License
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* v. 1.0 which is available at
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* http://www.eclipse.org/org/documents/edl-v10.php.
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*
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* SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
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*/
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#ifndef DDSI_CDRSTREAM_H
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#define DDSI_CDRSTREAM_H
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#include "dds/ddsrt/static_assert.h"
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#include "dds/ddsi/ddsi_serdata.h"
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#include "dds/ddsi/ddsi_serdata_default.h"
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#if defined (__cplusplus)
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extern "C" {
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#endif
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#define DDSI_CDRSTREAM_MAX_NESTING_DEPTH 32 /* maximum level of nesting for key extraction */
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typedef struct dds_istream {
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const unsigned char *m_buffer;
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uint32_t m_size; /* Buffer size */
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uint32_t m_index; /* Read/write offset from start of buffer */
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uint32_t m_xcdr_version; /* XCDR version of the data */
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} dds_istream_t;
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typedef struct dds_ostream {
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unsigned char *m_buffer;
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uint32_t m_size; /* Buffer size */
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uint32_t m_index; /* Read/write offset from start of buffer */
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uint32_t m_xcdr_version; /* XCDR version to use for serializing data */
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} dds_ostream_t;
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typedef struct dds_ostreamBE {
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dds_ostream_t x;
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} dds_ostreamBE_t;
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typedef struct dds_ostreamLE {
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dds_ostream_t x;
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} dds_ostreamLE_t;
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DDSRT_STATIC_ASSERT (offsetof (dds_ostreamLE_t, x) == 0);
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DDSRT_STATIC_ASSERT (offsetof (dds_ostreamBE_t, x) == 0);
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DDS_EXPORT void dds_istream_init (dds_istream_t * __restrict st, uint32_t size, const void * __restrict input, uint32_t xcdr_version);
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DDS_EXPORT void dds_istream_fini (dds_istream_t * __restrict st);
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DDS_EXPORT void dds_ostream_init (dds_ostream_t * __restrict st, uint32_t size, uint32_t xcdr_version);
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DDS_EXPORT void dds_ostream_fini (dds_ostream_t * __restrict st);
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DDS_EXPORT void dds_ostreamLE_init (dds_ostreamLE_t * __restrict st, uint32_t size, uint32_t xcdr_version);
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DDS_EXPORT void dds_ostreamLE_fini (dds_ostreamLE_t * __restrict st);
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DDS_EXPORT void dds_ostreamBE_init (dds_ostreamBE_t * __restrict st, uint32_t size, uint32_t xcdr_version);
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DDS_EXPORT void dds_ostreamBE_fini (dds_ostreamBE_t * __restrict st);
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// *actual_size is set to the actual size of the data (*actual_size <= size) on successful return
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DDS_EXPORT bool dds_stream_normalize (void * __restrict data, uint32_t size, bool bswap, uint32_t xcdr_version, const struct ddsi_sertype_default * __restrict type, bool just_key, uint32_t * __restrict actual_size) ddsrt_attribute_warn_unused_result ddsrt_nonnull_all;
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DDS_EXPORT const uint32_t *dds_stream_normalize_data (char * __restrict data, uint32_t * __restrict off, uint32_t size, bool bswap, uint32_t xcdr_version, const uint32_t * __restrict ops) ddsrt_attribute_warn_unused_result ddsrt_nonnull_all;
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DDS_EXPORT const uint32_t *dds_stream_write (dds_ostream_t * __restrict os, const char * __restrict data, const uint32_t * __restrict ops);
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DDS_EXPORT const uint32_t *dds_stream_writeLE (dds_ostreamLE_t * __restrict os, const char * __restrict data, const uint32_t * __restrict ops);
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DDS_EXPORT const uint32_t *dds_stream_writeBE (dds_ostreamBE_t * __restrict os, const char * __restrict data, const uint32_t * __restrict ops);
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DDS_EXPORT const uint32_t * dds_stream_write_with_byte_order (dds_ostream_t * __restrict os, const char * __restrict data, const uint32_t * __restrict ops, enum ddsrt_byte_order_selector bo);
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DDS_EXPORT bool dds_stream_write_sample (dds_ostream_t * __restrict os, const void * __restrict data, const struct ddsi_sertype_default * __restrict type);
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DDS_EXPORT bool dds_stream_write_sampleLE (dds_ostreamLE_t * __restrict os, const void * __restrict data, const struct ddsi_sertype_default * __restrict type);
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DDS_EXPORT bool dds_stream_write_sampleBE (dds_ostreamBE_t * __restrict os, const void * __restrict data, const struct ddsi_sertype_default * __restrict type);
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DDS_EXPORT void dds_stream_read_sample (dds_istream_t * __restrict is, void * __restrict data, const struct ddsi_sertype_default * __restrict type);
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DDS_EXPORT void dds_stream_free_sample (void * __restrict data, const uint32_t * __restrict ops);
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DDS_EXPORT uint32_t dds_stream_countops (const uint32_t * __restrict ops, uint32_t nkeys, const dds_key_descriptor_t * __restrict keys);
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DDS_EXPORT size_t dds_stream_check_optimize (const struct ddsi_sertype_default_desc * __restrict desc, uint32_t xcdr_version);
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DDS_EXPORT void dds_istream_from_serdata_default (dds_istream_t * __restrict s, const struct ddsi_serdata_default * __restrict d);
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DDS_EXPORT void dds_ostream_from_serdata_default (dds_ostream_t * __restrict s, const struct ddsi_serdata_default * __restrict d);
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DDS_EXPORT void dds_ostream_add_to_serdata_default (dds_ostream_t * __restrict s, struct ddsi_serdata_default ** __restrict d);
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DDS_EXPORT void dds_stream_write_key (dds_ostream_t * __restrict os, const char * __restrict sample, const struct ddsi_sertype_default * __restrict type);
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DDS_EXPORT void dds_stream_write_keyBE (dds_ostreamBE_t * __restrict os, const char * __restrict sample, const struct ddsi_sertype_default * __restrict type);
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DDS_EXPORT bool dds_stream_extract_key_from_data (dds_istream_t * __restrict is, dds_ostream_t * __restrict os, const struct ddsi_sertype_default * __restrict type);
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DDS_EXPORT void dds_stream_extract_key_from_key (dds_istream_t * __restrict is, dds_ostream_t * __restrict os, const struct ddsi_sertype_default * __restrict type);
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DDS_EXPORT bool dds_stream_extract_keyBE_from_data (dds_istream_t * __restrict is, dds_ostreamBE_t * __restrict os, const struct ddsi_sertype_default * __restrict type);
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DDS_EXPORT void dds_stream_extract_keyBE_from_key (dds_istream_t * __restrict is, dds_ostreamBE_t * __restrict os, const struct ddsi_sertype_default * __restrict type);
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DDS_EXPORT const uint32_t *dds_stream_read (dds_istream_t * __restrict is, char * __restrict data, const uint32_t * __restrict ops);
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DDS_EXPORT void dds_stream_read_key (dds_istream_t * __restrict is, char * __restrict sample, const struct ddsi_sertype_default * __restrict type);
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DDS_EXPORT size_t dds_stream_print_key (dds_istream_t * __restrict is, const struct ddsi_sertype_default * __restrict type, char * __restrict buf, size_t size);
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DDS_EXPORT size_t dds_stream_print_sample (dds_istream_t * __restrict is, const struct ddsi_sertype_default * __restrict type, char * __restrict buf, size_t size);
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DDS_EXPORT uint16_t dds_stream_minimum_xcdr_version (const uint32_t * __restrict ops);
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DDS_EXPORT uint32_t dds_stream_type_nesting_depth (const uint32_t * __restrict ops);
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DDS_EXPORT bool dds_stream_extensibility (const uint32_t * __restrict ops, enum ddsi_sertype_extensibility *ext);
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#if defined (__cplusplus)
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}
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#endif
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#endif
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