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/*-
* Public Domain 2014-present MongoDB, Inc.
* Public Domain 2008-2014 WiredTiger, Inc.
*
* This is free and unencumbered software released into the public domain.
*
* Anyone is free to copy, modify, publish, use, compile, sell, or
* distribute this software, either in source code form or as a compiled
* binary, for any purpose, commercial or non-commercial, and by any
* means.
*
* In jurisdictions that recognize copyright laws, the author or authors
* of this software dedicate any and all copyright interest in the
* software to the public domain. We make this dedication for the benefit
* of the public at large and to the detriment of our heirs and
* successors. We intend this dedication to be an overt act of
* relinquishment in perpetuity of all present and future rights to this
* software under copyright law.
*
* 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 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.
*
* ex_pack.c
* This is an example demonstrating basic packing and unpacking of fields.
*/
#include <test_util.h>
static const char *home;
int
main(int argc, char *argv[])
{
WT_CONNECTION *conn;
WT_SESSION *session;
int i, j, k;
home = example_setup(argc, argv);
/* Open a connection to the database, creating it if necessary. */
error_check(wiredtiger_open(home, NULL, "create", &conn));
/* Open a session for the current thread's work. */
error_check(conn->open_session(conn, NULL, NULL, &session));
{
/*! [packing] */
size_t size;
char buf[50];
error_check(wiredtiger_struct_size(session, &size, "iii", 42, 1000, -9));
if (size > sizeof(buf)) {
/* Allocate a bigger buffer. */
}
error_check(wiredtiger_struct_pack(session, buf, size, "iii", 42, 1000, -9));
error_check(wiredtiger_struct_unpack(session, buf, size, "iii", &i, &j, &k));
/*! [packing] */
}
/* Note: closing the connection implicitly closes open session(s). */
error_check(conn->close(conn, NULL));
return (EXIT_SUCCESS);
}
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