d473094676
Change the copyright check script to always use the current year. Change the example code copyright notices to document them as freeware, anybody using WiredTiger example code is free to use it in any way they choose, including commercially, WiredTiger claims no rights in such a copy. Minor re-ordering of the standard copyright notice so the preamble is always the copyright notice itself, not the mention of the LICENSE file.
106 lines
3.0 KiB
C
106 lines
3.0 KiB
C
/*-
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* Copyright (c) 2008-2012 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_thread.c
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* This is an example demonstrating how to create and access a simple
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* table from multiple threads.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <pthread.h>
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#include <wiredtiger.h>
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void *scan_thread(void *arg);
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const char *home = "WT_TEST";
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#define NUM_THREADS 10
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WT_CONNECTION *conn;
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/*! [thread scan] */
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void *
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scan_thread(void *arg)
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{
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WT_SESSION *session;
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WT_CURSOR *cursor;
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const char *key, *value;
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int ret;
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ret = conn->open_session(conn, NULL, NULL, &session);
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ret = session->open_cursor(session, "table:access",
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NULL, NULL, &cursor);
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/* Show all records. */
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while ((ret = cursor->next(cursor)) == 0) {
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ret = cursor->get_key(cursor, &key);
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ret = cursor->get_value(cursor, &value);
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printf("Got record: %s : %s\n", key, value);
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}
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return (arg);
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}
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/*! [thread scan] */
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/*! [thread main] */
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int
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main(void)
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{
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WT_SESSION *session;
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WT_CURSOR *cursor;
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pthread_t threads[NUM_THREADS];
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int i, ret;
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if ((ret = wiredtiger_open(home, NULL,
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"create", &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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/* Note: further error checking omitted for clarity. */
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ret = conn->open_session(conn, NULL, NULL, &session);
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ret = session->create(session, "table:access",
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"key_format=S,value_format=S");
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ret = session->open_cursor(session, "table:access", NULL,
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"overwrite", &cursor);
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cursor->set_key(cursor, "key1");
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cursor->set_value(cursor, "value1");
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ret = cursor->insert(cursor);
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ret = session->close(session, NULL);
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for (i = 0; i < NUM_THREADS; i++)
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ret = pthread_create(&threads[i], NULL, scan_thread, NULL);
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for (i = 0; i < NUM_THREADS; i++)
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ret = pthread_join(threads[i], NULL);
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ret = conn->close(conn, NULL);
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return (ret);
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}
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/*! [thread main] */
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