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mdbx: big-bang (initial).

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- OS Abstraction Layer;
 - Windows Support.
 - preparation for more changes.

Change-Id: I53772eda9091ba361cbc9a28656190ea0d4c5cee
This commit is contained in:
Leo Yuriev
2017-03-16 18:09:27 +03:00
parent 95e606606a
commit 0f49ed6e53
33 changed files with 3678 additions and 2498 deletions
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76
src/tools/mdbx_copy.c Normal file
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/* mdbx_copy.c - memory-mapped database backup tool */
/*
* Copyright 2015-2017 Leonid Yuriev <leo@yuriev.ru>
* and other libmdbx authors: please see AUTHORS file.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
* Public License.
*
* A copy of this license is available in the file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
*/
#include "../../mdbx.h"
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
static void sighandle(int sig) { (void)sig; }
int main(int argc, char *argv[]) {
int rc;
MDB_env *env = NULL;
const char *progname = argv[0], *act;
unsigned flags = MDB_RDONLY;
unsigned cpflags = 0;
for (; argc > 1 && argv[1][0] == '-'; argc--, argv++) {
if (argv[1][1] == 'n' && argv[1][2] == '\0')
flags |= MDB_NOSUBDIR;
else if (argv[1][1] == 'c' && argv[1][2] == '\0')
cpflags |= MDB_CP_COMPACT;
else if (argv[1][1] == 'V' && argv[1][2] == '\0') {
printf("%s\n", MDBX_VERSION_STRING);
exit(0);
} else
argc = 0;
}
if (argc < 2 || argc > 3) {
fprintf(stderr, "usage: %s [-V] [-c] [-n] srcpath [dstpath]\n", progname);
exit(EXIT_FAILURE);
}
#ifdef SIGPIPE
signal(SIGPIPE, sighandle);
#endif
#ifdef SIGHUP
signal(SIGHUP, sighandle);
#endif
signal(SIGINT, sighandle);
signal(SIGTERM, sighandle);
act = "opening environment";
rc = mdbx_env_create(&env);
if (rc == MDB_SUCCESS) {
rc = mdbx_env_open(env, argv[1], flags, 0640);
}
if (rc == MDB_SUCCESS) {
act = "copying";
if (argc == 2)
rc = mdbx_env_copyfd2(env, STDOUT_FILENO, cpflags);
else
rc = mdbx_env_copy2(env, argv[2], cpflags);
}
if (rc)
fprintf(stderr, "%s: %s failed, error %d (%s)\n", progname, act, rc,
mdbx_strerror(rc));
mdbx_env_close(env);
return rc ? EXIT_FAILURE : EXIT_SUCCESS;
}