BSON_WRITER_T(3)

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
2009-present, MongoDB, Inc.