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/*-
* Copyright (c) 2014-2019 MongoDB, Inc.
* Copyright (c) 2008-2014 WiredTiger, Inc.
* All rights reserved.
*
* See the file LICENSE for redistribution information.
*/
#include "util.h"
static int usage(void);
int
util_read(WT_SESSION *session, int argc, char *argv[])
{
WT_CURSOR *cursor;
WT_DECL_RET;
uint64_t recno;
int ch;
char *uri, *value;
bool rkey, rval;
uri = NULL;
while ((ch = __wt_getopt(progname, argc, argv, "")) != EOF)
switch (ch) {
case '?':
default:
return (usage());
}
argc -= __wt_optind;
argv += __wt_optind;
/* The remaining arguments are a uri followed by a list of keys. */
if (argc < 2)
return (usage());
if ((uri = util_uri(session, *argv, "table")) == NULL)
return (1);
/*
* Open the object; free allocated memory immediately to simplify future error handling.
*/
if ((ret = session->open_cursor(session, uri, NULL, NULL, &cursor)) != 0)
(void)util_err(session, ret, "%s: session.open_cursor", uri);
free(uri);
if (ret != 0)
return (ret);
/*
* A simple search only makes sense if the key format is a string or a record number, and the
* value format is a single string.
*/
if (!WT_STREQ(cursor->key_format, "r") && !WT_STREQ(cursor->key_format, "S")) {
fprintf(stderr,
"%s: read command only possible when the key format is "
"a record number or string\n",
progname);
return (1);
}
rkey = WT_STREQ(cursor->key_format, "r");
if (!WT_STREQ(cursor->value_format, "S")) {
fprintf(stderr,
"%s: read command only possible when the value format is "
"a string\n",
progname);
return (1);
}
/*
* Run through the keys, returning non-zero on error or if any requested key isn't found.
*/
for (rval = false; *++argv != NULL;) {
if (rkey) {
if (util_str2num(session, *argv, true, &recno))
return (1);
cursor->set_key(cursor, recno);
} else
cursor->set_key(cursor, *argv);
switch (ret = cursor->search(cursor)) {
case 0:
if ((ret = cursor->get_value(cursor, &value)) != 0)
return (util_cerr(cursor, "get_value", ret));
if (printf("%s\n", value) < 0)
return (util_err(session, EIO, NULL));
break;
case WT_NOTFOUND:
(void)util_err(session, 0, "%s: not found", *argv);
rval = true;
break;
default:
return (util_cerr(cursor, "search", ret));
}
}
return (rval ? 1 : 0);
}
static int
usage(void)
{
(void)fprintf(stderr,
"usage: %s %s "
"read uri key ...\n",
progname, usage_prefix);
return (1);
}
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