| BSON_WRITER_T(3) | libbson | BSON_WRITER_T(3) |
bson_writer_t - bson_writer_t
Bulk BSON serialization Abstraction
#include <bson/bson.h> typedef struct _bson_writer_t bson_writer_t; bson_writer_t * bson_writer_new (uint8_t **buf,
size_t *buflen,
size_t offset,
bson_realloc_func realloc_func,
void *realloc_func_ctx); void bson_writer_destroy (bson_writer_t *writer);
The bson_writer_t API provides an abstraction for serializing many BSON documents to a single memory region. The memory region may be dynamically allocated and re-allocated as more memory is demanded. This can be useful when building network packets from a high-level language. For example, you can serialize a Python Dictionary directly to a single buffer destined for a TCP packet.
#include <bson/bson.h>
int
main (int argc, char *argv[])
{
bson_writer_t *writer;
uint8_t *buf = NULL;
size_t buflen = 0;
bson_t *doc;
writer = bson_writer_new (&buf, &buflen, 0, bson_realloc_ctx, NULL);
for (i = 0; i < 1000; i++) {
bson_writer_begin (writer, &doc);
BSON_APPEND_INT32 (&doc, "i", i);
bson_writer_end (writer);
}
bson_writer_destroy (writer);
bson_free (buf);
return 0;
}
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| June 4, 2021 | 1.17.6 |