BSON_WRITER_T(3)

NAME
bson_writer_t - bson_writer_t

Bulk BSON serialization Abstraction

SYNOPSIS

        #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);

DESCRIPTION

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.

EXAMPLE

        #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;
        }

AUTHOR
MongoDB, Inc

COPYRIGHT
2017-present, MongoDB, Inc