80 lines
2.6 KiB
C
80 lines
2.6 KiB
C
/*-
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* Public Domain 2014-2015 MongoDB, Inc.
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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_process.c
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* This is an example demonstrating how to connect to a database from
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* multiple processes.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <wiredtiger.h>
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static const char *home;
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int
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main(void)
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{
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int ret;
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WT_CONNECTION *conn;
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WT_SESSION *session;
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/*
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* Create a clean test directory for this run of the test program if the
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* environment variable isn't already set (as is done by make check).
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*/
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if (getenv("WIREDTIGER_HOME") == NULL) {
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home = "WT_HOME";
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ret = system("rm -rf WT_HOME && mkdir WT_HOME");
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} else
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home = NULL;
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/*! [processes] */
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/* Open a connection to the database, creating it if necessary. */
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if ((ret =
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wiredtiger_open(home, NULL, "create,multiprocess", &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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/* Open a session for the current thread's work. */
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if ((ret = conn->open_session(conn, NULL, NULL, &session)) != 0)
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fprintf(stderr, "Error opening a session on %s: %s\n",
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home, wiredtiger_strerror(ret));
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/* XXX Do some work... */
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/* Note: closing the connection implicitly closes open session(s). */
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if ((ret = conn->close(conn, NULL)) != 0)
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fprintf(stderr, "Error closing %s: %s\n",
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home, wiredtiger_strerror(ret));
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/*! [processes] */
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return (ret);
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}
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