int
main(void)
{
WT_CONNECTION *conn;
int ret;
/*
* Create a clean test directory for this run of the test program if the
* environment variable isn't already set (as is done by make check).
*/
if (getenv("WIREDTIGER_HOME") == NULL) {
home = "WT_HOME";
ret = system("rm -rf WT_HOME && mkdir WT_HOME");
} else
home = NULL;
/*! [Open a connection] */
ret = wiredtiger_open(home, NULL,
"create,cache_size=5GB,log=(enabled,recover=on)", &conn);
/*! [Open a connection] */
if (ret == 0)
ret = connection_ops(conn);
/*
* The connection has been closed.
*/
#ifdef MIGHT_NOT_RUN
/*
* This example code gets run, and the compression libraries might not
* be installed, causing the open to fail. The documentation requires
* the code snippets, use #ifdef's to avoid running it.
*/
/*! [Configure lz4 extension] */
ret = wiredtiger_open(home, NULL,
"create,"
"extensions=[/usr/local/lib/libwiredtiger_lz4.so]", &conn);
/*! [Configure lz4 extension] */
if (ret == 0)
(void)conn->close(conn, NULL);
/*! [Configure snappy extension] */
ret = wiredtiger_open(home, NULL,
"create,"
"extensions=[/usr/local/lib/libwiredtiger_snappy.so]", &conn);
/*! [Configure snappy extension] */
if (ret == 0)
(void)conn->close(conn, NULL);
/*! [Configure zlib extension] */
ret = wiredtiger_open(home, NULL,
"create,"
"extensions=[/usr/local/lib/libwiredtiger_zlib.so]", &conn);
/*! [Configure zlib extension] */
if (ret == 0)
(void)conn->close(conn, NULL);
/*! [Configure zlib extension with compression level] */
ret = wiredtiger_open(home, NULL,
"create,"
"extensions=[/usr/local/lib/"
"libwiredtiger_zlib.so=[config=[compression_level=3]]]", &conn);
/*! [Configure zlib extension with compression level] */
if (ret == 0)
(void)conn->close(conn, NULL);
/*! [Configure zstd extension] */
ret = wiredtiger_open(home, NULL,
"create,"
"extensions=[/usr/local/lib/libwiredtiger_zstd.so]", &conn);
/*! [Configure zstd extension] */
if (ret == 0)
(void)conn->close(conn, NULL);
/*! [Configure zstd extension with compression level] */
ret = wiredtiger_open(home, NULL,
"create,"
"extensions=[/usr/local/lib/"
"libwiredtiger_zstd.so=[config=[compression_level=9]]]", &conn);
/*! [Configure zstd extension with compression level] */
if (ret == 0)
(void)conn->close(conn, NULL);
/*
* This example code gets run, and direct I/O might not be available,
* causing the open to fail. The documentation requires code snippets,
* use #ifdef's to avoid running it.
*/
/* Might Not Run: direct I/O may not be available. */
/*! [Configure direct_io for data files] */
ret = wiredtiger_open(home, NULL, "create,direct_io=[data]", &conn);
/*! [Configure direct_io for data files] */
if (ret == 0)
(void)conn->close(conn, NULL);
#endif
/*! [Configure file_extend] */
ret = wiredtiger_open(
home, NULL, "create,file_extend=(data=16MB)", &conn);
/*! [Configure file_extend] */
if (ret == 0)
ret = conn->close(conn, NULL);
/*! [Eviction configuration] */
/*
* Configure eviction to begin at 90% full, and run until the cache
* is only 75% dirty.
*/
ret = wiredtiger_open(home, NULL,
"create,eviction_trigger=90,eviction_dirty_target=75", &conn);
/*! [Eviction configuration] */
if (ret == 0)
ret = conn->close(conn, NULL);
/*! [Eviction worker configuration] */
/* Configure up to four eviction threads */
ret = wiredtiger_open(home, NULL,
"create,eviction_trigger=90,eviction=(threads_max=4)", &conn);
/*! [Eviction worker configuration] */
if (ret == 0)
ret = conn->close(conn, NULL);
/*! [Statistics configuration] */
ret = wiredtiger_open(home, NULL, "create,statistics=(all)", &conn);
/*! [Statistics configuration] */
if (ret == 0)
ret = conn->close(conn, NULL);
/*! [Statistics logging] */
ret = wiredtiger_open(
home, NULL, "create,statistics_log=(wait=30)", &conn);
/*! [Statistics logging] */
if (ret == 0)
ret = conn->close(conn, NULL);
#ifdef MIGHT_NOT_RUN
/*
* Don't run this code, statistics logging doesn't yet support tables.
*/
/*! [Statistics logging with a table] */
ret = wiredtiger_open(home, NULL,
"create, statistics_log=("
"sources=(\"table:table1\",\"table:table2\"), wait=5)",
&conn);
/*! [Statistics logging with a table] */
if (ret == 0)
ret = conn->close(conn, NULL);
/*
* Don't run this code, statistics logging doesn't yet support indexes.
*/
/*! [Statistics logging with a source type] */
ret = wiredtiger_open(home, NULL,
"create, statistics_log=(sources=(\"index:\"), wait=5)",
&conn);
/*! [Statistics logging with a source type] */
if (ret == 0)
ret = conn->close(conn, NULL);
/*
* Don't run this code, because memory checkers get very upset when we
* leak memory.
*/
(void)wiredtiger_open(home, NULL, "create", &conn);
/*! [Connection close leaking memory] */
ret = conn->close(conn, "leak_memory=true");
/*! [Connection close leaking memory] */
#endif
/*! [Get the WiredTiger library version #1] */
printf("WiredTiger version %s\n", wiredtiger_version(NULL, NULL, NULL));
/*! [Get the WiredTiger library version #1] */
{
/*! [Get the WiredTiger library version #2] */
int major_v, minor_v, patch;
(void)wiredtiger_version(&major_v, &minor_v, &patch);
printf("WiredTiger version is %d, %d (patch %d)\n",
major_v, minor_v, patch);
/*! [Get the WiredTiger library version #2] */
}
return (ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE);
}
int
main(void)
{
WT_CONNECTION *conn;
int ret;
/*! [Open a connection] */
ret = wiredtiger_open(home, NULL, "create,cache_size=500M", &conn);
/*! [Open a connection] */
if (ret == 0)
connection_ops(conn);
/*
* The connection has been closed.
*/
#ifdef MIGHT_NOT_RUN
/*
* This example code gets run, and the compression libraries might not
* be installed, causing the open to fail. The documentation requires
* the code snippets, use #ifdef's to avoid running it.
*/
/*! [Configure bzip2 extension] */
ret = wiredtiger_open(home, NULL,
"create,"
"extensions=[/usr/local/lib/libwiredtiger_bzip2.so]", &conn);
/*! [Configure bzip2 extension] */
if (ret == 0)
(void)conn->close(conn, NULL);
/*! [Configure snappy extension] */
ret = wiredtiger_open(home, NULL,
"create,"
"extensions=[/usr/local/lib/libwiredtiger_snappy.so]", &conn);
/*! [Configure snappy extension] */
if (ret == 0)
(void)conn->close(conn, NULL);
/*! [Configure zlib extension] */
ret = wiredtiger_open(home, NULL,
"create,"
"extensions=[/usr/local/lib/libwiredtiger_zlib.so]", &conn);
/*! [Configure zlib extension] */
if (ret == 0)
(void)conn->close(conn, NULL);
/*
* This example code gets run, and direct I/O might not be available,
* causing the open to fail. The documentation requires code snippets,
* use #ifdef's to avoid running it.
*/
/* Might Not Run: direct I/O may not be available. */
/*! [Configure direct_io for data files] */
ret = wiredtiger_open(home, NULL, "create,direct_io=[data]", &conn);
/*! [Configure direct_io for data files] */
if (ret == 0)
(void)conn->close(conn, NULL);
#endif
/*! [Configure file_extend] */
ret = wiredtiger_open(
home, NULL, "create,file_extend=(data=16MB)", &conn);
/*! [Configure file_extend] */
if (ret == 0)
(void)conn->close(conn, NULL);
/*! [Statistics configuration] */
ret = wiredtiger_open(home, NULL, "create,statistics=(all)", &conn);
/*! [Statistics configuration] */
if (ret == 0)
(void)conn->close(conn, NULL);
/*! [Statistics logging] */
ret = wiredtiger_open(
home, NULL, "create,statistics_log=(wait=30)", &conn);
/*! [Statistics logging] */
if (ret == 0)
(void)conn->close(conn, NULL);
/*! [Statistics logging with a table] */
ret = wiredtiger_open(home, NULL,
"create,"
"statistics_log=(sources=(\"table:table1\",\"table:table2\"))",
&conn);
/*! [Statistics logging with a table] */
if (ret == 0)
(void)conn->close(conn, NULL);
/*! [Statistics logging with all tables] */
ret = wiredtiger_open(home, NULL,
"create,statistics_log=(sources=(\"table:\"))",
&conn);
/*! [Statistics logging with all tables] */
if (ret == 0)
(void)conn->close(conn, NULL);
#ifdef MIGHT_NOT_RUN
/*
* This example code gets run, and a non-existent log file path might
* cause the open to fail. The documentation requires code snippets,
* use #ifdef's to avoid running it.
*/
/*! [Statistics logging with path] */
ret = wiredtiger_open(home, NULL,
"create,"
"statistics_log=(wait=120,path=/log/log.%m.%d.%y)", &conn);
/*! [Statistics logging with path] */
if (ret == 0)
(void)conn->close(conn, NULL);
#endif
/*! [Get the WiredTiger library version #1] */
printf("WiredTiger version %s\n", wiredtiger_version(NULL, NULL, NULL));
/*! [Get the WiredTiger library version #1] */
{
/*! [Get the WiredTiger library version #2] */
int major, minor, patch;
(void)wiredtiger_version(&major, &minor, &patch);
printf("WiredTiger version is %d, %d (patch %d)\n",
major, minor, patch);
/*! [Get the WiredTiger library version #2] */
}
return (ret);
}
int
main(int argc, char *argv[])
{
WT_CONNECTION *conn;
home = example_setup(argc, argv);
/*! [Open a connection] */
error_check(wiredtiger_open(home, NULL,
"create,cache_size=5GB,log=(enabled,recover=on),statistics=(all)",
&conn));
/*! [Open a connection] */
connection_ops(conn);
/*
* The connection has been closed.
*/
#ifdef MIGHT_NOT_RUN
/*
* This example code gets run, and the compression libraries might not
* be installed, causing the open to fail. The documentation requires
* the code snippets, use #ifdef's to avoid running it.
*/
/*! [Configure lz4 extension] */
error_check(wiredtiger_open(home, NULL,
"create,"
"extensions=[/usr/local/lib/libwiredtiger_lz4.so]", &conn));
/*! [Configure lz4 extension] */
error_check(conn->close(conn, NULL));
/*! [Configure snappy extension] */
error_check(wiredtiger_open(home, NULL,
"create,"
"extensions=[/usr/local/lib/libwiredtiger_snappy.so]", &conn));
/*! [Configure snappy extension] */
error_check(conn->close(conn, NULL));
/*! [Configure zlib extension] */
error_check(wiredtiger_open(home, NULL,
"create,"
"extensions=[/usr/local/lib/libwiredtiger_zlib.so]", &conn));
/*! [Configure zlib extension] */
error_check(conn->close(conn, NULL));
/*! [Configure zlib extension with compression level] */
error_check(wiredtiger_open(home, NULL,
"create,"
"extensions=[/usr/local/lib/"
"libwiredtiger_zlib.so=[config=[compression_level=3]]]", &conn));
/*! [Configure zlib extension with compression level] */
error_check(conn->close(conn, NULL));
/*! [Configure zstd extension] */
error_check(wiredtiger_open(home, NULL,
"create,"
"extensions=[/usr/local/lib/libwiredtiger_zstd.so]", &conn));
/*! [Configure zstd extension] */
error_check(conn->close(conn, NULL));
/*! [Configure zstd extension with compression level] */
error_check(wiredtiger_open(home, NULL,
"create,"
"extensions=[/usr/local/lib/"
"libwiredtiger_zstd.so=[config=[compression_level=9]]]", &conn));
/*! [Configure zstd extension with compression level] */
error_check(conn->close(conn, NULL));
/*
* This example code gets run, and direct I/O might not be available,
* causing the open to fail. The documentation requires code snippets,
* use #ifdef's to avoid running it.
*/
/* Might Not Run: direct I/O may not be available. */
/*! [Configure direct_io for data files] */
error_check(wiredtiger_open(
home, NULL, "create,direct_io=[data]", &conn));
/*! [Configure direct_io for data files] */
error_check(conn->close(conn, NULL));
#endif
/*! [Configure file_extend] */
error_check(wiredtiger_open(
home, NULL, "create,file_extend=(data=16MB)", &conn));
/*! [Configure file_extend] */
error_check(conn->close(conn, NULL));
/*! [Eviction configuration] */
/*
* Configure eviction to begin at 90% full, and run until the cache
* is only 75% dirty.
*/
error_check(wiredtiger_open(home, NULL,
"create,eviction_trigger=90,eviction_dirty_target=75", &conn));
/*! [Eviction configuration] */
error_check(conn->close(conn, NULL));
/*! [Eviction worker configuration] */
/* Configure up to four eviction threads */
error_check(wiredtiger_open(home, NULL,
"create,eviction_trigger=90,eviction=(threads_max=4)", &conn));
/*! [Eviction worker configuration] */
error_check(conn->close(conn, NULL));
/*! [Statistics configuration] */
error_check(wiredtiger_open(
home, NULL, "create,statistics=(all)", &conn));
/*! [Statistics configuration] */
error_check(conn->close(conn, NULL));
/*! [Statistics logging] */
error_check(wiredtiger_open(
home, NULL, "create,statistics_log=(wait=30)", &conn));
/*! [Statistics logging] */
error_check(conn->close(conn, NULL));
#ifdef MIGHT_NOT_RUN
/*
* Don't run this code, statistics logging doesn't yet support tables.
*/
/*! [Statistics logging with a table] */
error_check(wiredtiger_open(home, NULL,
"create, statistics_log=("
"sources=(\"table:table1\",\"table:table2\"), wait=5)", &conn));
/*! [Statistics logging with a table] */
error_check(conn->close(conn, NULL));
/*
* Don't run this code, statistics logging doesn't yet support indexes.
*/
/*! [Statistics logging with a source type] */
error_check(wiredtiger_open(home, NULL,
"create, statistics_log=(sources=(\"index:\"), wait=5)", &conn));
/*! [Statistics logging with a source type] */
error_check(conn->close(conn, NULL));
/*
* Don't run this code, because memory checkers get very upset when we
* leak memory.
*/
error_check(wiredtiger_open(home, NULL, "create", &conn));
/*! [Connection close leaking memory] */
error_check(conn->close(conn, "leak_memory=true"));
/*! [Connection close leaking memory] */
#endif
/*! [Get the WiredTiger library version #1] */
printf("WiredTiger version %s\n", wiredtiger_version(NULL, NULL, NULL));
/*! [Get the WiredTiger library version #1] */
{
/*! [Get the WiredTiger library version #2] */
int major_v, minor_v, patch;
(void)wiredtiger_version(&major_v, &minor_v, &patch);
printf("WiredTiger version is %d, %d (patch %d)\n",
major_v, minor_v, patch);
/*! [Get the WiredTiger library version #2] */
}
{
/*! [Calculate a modify operation] */
WT_MODIFY mod[3];
int nmod = 3;
WT_ITEM prev, newv;
prev.data = "the quick brown fox jumped over the lazy dog. " \
"THE QUICK BROWN FOX JUMPED OVER THE LAZY DOG. " \
"the quick brown fox jumped over the lazy dog. " \
"THE QUICK BROWN FOX JUMPED OVER THE LAZY DOG. ";
prev.size = strlen(prev.data);
newv.data = "A quick brown fox jumped over the lazy dog. " \
"THE QUICK BROWN FOX JUMPED OVER THE LAZY DOG. " \
"then a quick brown fox jumped over the lazy dog. " \
"THE QUICK BROWN FOX JUMPED OVER THE LAZY DOG. " \
"then what?";
newv.size = strlen(newv.data);
error_check(wiredtiger_calc_modify(NULL, &prev, &newv, 20, mod, &nmod));
/*! [Calculate a modify operation] */
}
{
const char *buffer = "some string";
size_t len = strlen(buffer);
/*! [Checksum a buffer] */
uint32_t crc32c, (*func)(const void *, size_t);
func = wiredtiger_crc32c_func();
crc32c = func(buffer, len);
/*! [Checksum a buffer] */
(void)crc32c;
}
return (EXIT_SUCCESS);
}
