109 lines
3.2 KiB
C
109 lines
3.2 KiB
C
/*-
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* Public Domain 2008-2014 WiredTiger, Inc.
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*
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* This is free and unencumbered software released into the public domain.
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*
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* Anyone is free to copy, modify, publish, use, compile, sell, or
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* distribute this software, either in source code form or as a compiled
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* binary, for any purpose, commercial or non-commercial, and by any
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* means.
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*
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* In jurisdictions that recognize copyright laws, the author or authors
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* of this software dedicate any and all copyright interest in the
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* software to the public domain. We make this dedication for the benefit
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* of the public at large and to the detriment of our heirs and
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* successors. We intend this dedication to be an overt act of
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* relinquishment in perpetuity of all present and future rights to this
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* software under copyright law.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* ex_async.c
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* demonstrates how to use the asynchronous API.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <wiredtiger.h>
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const char *home = NULL;
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const char *uri = "table:async";
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uint64_t insert_done, search_id;
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int global_error = 0;
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/*! [async example callback implementation] */
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static int
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cb_asyncop(WT_ASYNC_CALLBACK *cb, WT_ASYNC_OP *op, int ret, uint32_t flags)
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{
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const char *key, *value;
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int t_ret;
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(void)cb;
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t_ret = 0;
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if (ret != 0) {
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printf("ID %" PRIu64 " error %d\n", op->get_id, ret);
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global_error = ret;
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return (1);
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}
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if (op->get_id == search_id) {
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t_ret = op->get_key(cursor, &key);
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t_ret = op->get_value(cursor, &value);
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printf("Got record: %s : %s\n", key, value);
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} else
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insert_done = 1;
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return (t_ret);
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}
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static WT_ASYNC_CALLBACK cb = { cb_asyncop };
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/*! [async example callback implementation] */
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int main(void)
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{
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/*! [async example connection] */
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WT_ASYNC_OP *op, *op1;
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WT_CONNECTION *wt_conn;
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WT_SESSION *session;
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int ret;
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if ((ret = wiredtiger_open(home, NULL,
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"create,async=(enabled=true,ops_max=10,threads=2)", &conn)) != 0) {
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fprintf(stderr, "Error connecting to %s: %s\n",
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home, wiredtiger_strerror(ret));
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return (ret);
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}
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/*! [async example connection] */
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/*! [async example table create] */
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ret = conn->open_session(wt_conn, NULL, NULL, &session);
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ret = session->create(session, uri,
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"key_format=S,value_format=S");
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/*! [async example table create] */
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/*! [async example open cursor] */
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ret = conn->new_async_op(conn, uri, NULL, &cb, &op);
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ret = conn->new_async_op(conn, uri, NULL, &cb, &op1);
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/*! [async example open cursor] */
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/*! [async example insert] */
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op->set_key(op, "key1");
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op->set_value(op, "value1");
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ret = op->insert(op);
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op1->set_key(op1, "key1");
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search_id = op1->get_id(op1);
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op1->search(op1);
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/*! [async example insert] */
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/*! [async example close] */
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ret = conn->close(conn, NULL);
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/*! [async example close] */
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return (ret);
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}
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