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3
Makefile
Normal file
3
Makefile
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all: mdbx
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mdbx: mdbx.c
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gcc mdbx.c -I /usr/include/libmdbx -L /usr/include/libmdbx -Wl,-R/usr/include/libmdbx -lmdbx -lm -o mdbx
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26
README.md
26
README.md
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# libmdbx
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# Простой консольный клиент для libmdbx
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Консольный клиент для libmbdx
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Libmdbx (https://libmdbx.dqdkfa.ru/) - встраиваемая БД типа ключ-значение российской разработки, продолжающая традиции Tokyo Cabinet и подобных.
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Base and simple libmbdx cli frontent:
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- Support put, del and get
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- Commit changes
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- Not support interactive mode
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- Not support DUPKEYS
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# Usage
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```
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mdbx [db_path...] [--help] [--del] [--put] [--get] [--info] [--del]
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```
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Options:
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--put key value
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--del key
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--get key
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--info - database info
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17
install.sh
Executable file
17
install.sh
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#!/bin/sh
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MDBX_VERSION="0.11.13"
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set -ex
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DIRNAME="/usr/include/libmdbx"
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if [ -e $DIRNAME ]; then
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rm -rf $DIRNAME
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fi
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mkdir -p $DIRNAME
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wget -P $DIRNAME https://libmdbx.dqdkfa.ru/release/libmdbx-amalgamated-${MDBX_VERSION}.tar.gz
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cd /usr/include/libmdbx
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tar xvzf libmdbx-amalgamated-${MDBX_VERSION}.tar.gz
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make lib
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168
mdbx.c
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168
mdbx.c
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/*
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* Copyright 2015-2022 Leonid Yuriev <leo@yuriev.ru>.
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* Copyright 2017 Ilya Shipitsin <chipitsine@gmail.com>.
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* Copyright 2012-2015 Howard Chu, Symas Corp.
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* Copyright 2024 Zoviet, asustem.ru.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted only as authorized by the OpenLDAP
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* Public License.
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*
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* A copy of this license is available in the file LICENSE in the
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* top-level directory of the distribution or, alternatively, at
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* <http://www.OpenLDAP.org/license.html>.
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*/
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#include "mdbx.h"
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#include <limits.h>
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#include <stdint.h>
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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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void help(void) {
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printf("Usage: mdbx [db_path...] [--help] [--del] [--put] [--get] [--info] [--del]\n Options:\n--put key value :put key-value pair\n--del key :delete key\n--get key :get key\n--info :db info\n");
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}
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int main(int argc, char **argv) {
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int rc;
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MDBX_env *env = NULL;
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MDBX_dbi dbi = 0;
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MDBX_val key, data;
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MDBX_txn *txn = NULL;
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MDBX_cursor *cursor = NULL;
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char sval[32];
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#if UINTPTR_MAX > 0xffffFFFFul || ULONG_MAX > 0xffffFFFFul
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const double scale_factor = 1099511627776.0;
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const char *const scale_unit = "TiB";
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#else
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const double scale_factor = 1073741824.0;
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const char *const scale_unit = "GiB";
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#endif
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const size_t pagesize_min = mdbx_limits_pgsize_min();
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const size_t pagesize_max = mdbx_limits_pgsize_max();
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const size_t pagesize_default = mdbx_default_pagesize();
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if(argc <= 1 || !strcmp(argv[1], "--help")) {
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help();
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return 0;
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}
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rc = mdbx_env_create(&env);
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if (rc != MDBX_SUCCESS) {
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fprintf(stderr, "mdbx_env_create: (%d) %s\n", rc, mdbx_strerror(rc));
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goto bailout;
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}
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rc = mdbx_env_open(env, argv[1], MDBX_NOSUBDIR | MDBX_COALESCE | MDBX_LIFORECLAIM, 0664);
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if (rc != MDBX_SUCCESS) {
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fprintf(stderr, "mdbx_env_open: (%d) %s\n", rc, mdbx_strerror(rc));
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goto bailout;
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}
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rc = mdbx_txn_begin(env, NULL, 0, &txn);
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if (rc != MDBX_SUCCESS) {
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fprintf(stderr, "mdbx_txn_begin: (%d) %s\n", rc, mdbx_strerror(rc));
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goto bailout;
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}
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rc = mdbx_dbi_open(txn, NULL, 0, &dbi);
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if (rc != MDBX_SUCCESS) {
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fprintf(stderr, "mdbx_dbi_open: (%d) %s\n", rc, mdbx_strerror(rc));
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goto bailout;
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}
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if(!strcmp(argv[2], "--put")) {
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if(argc <= 4) {
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printf("'--put' operation requires two parameters: key and value.\n");
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return 0;
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}
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key.iov_len = sizeof(argv[3]);
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key.iov_base = argv[3];
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data.iov_len = sizeof(char) * (strlen(argv[4]) + 1);
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data.iov_base = argv[4];
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rc = mdbx_put(txn, dbi, &key, &data, 0);
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if (rc != MDBX_SUCCESS) {
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fprintf(stderr, "mdbx_put: (%d) %s\n", rc, mdbx_strerror(rc));
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goto bailout;
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}
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rc = mdbx_txn_commit(txn);
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if (rc) {
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fprintf(stderr, "mdbx_txn_commit: (%d) %s\n", rc, mdbx_strerror(rc));
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goto bailout;
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}
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goto bailout;
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} else if (!strcmp(argv[2], "--get")) {
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if(argc <= 3) {
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printf("'--get' operation requires key.\n");
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return 0;
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}
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key.iov_len = sizeof(argv[3]);
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key.iov_base = argv[3];
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MDBX_val v = {0};
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rc = mdbx_get(txn, dbi, &key, &v);
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if (rc != MDBX_SUCCESS) {
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if (rc == MDBX_NOTFOUND) {
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printf("Key '%s' not found", argv[3]);
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goto bailout;
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}
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fprintf(stderr, "mdbx_put: (%d) %s\n", rc, mdbx_strerror(rc));
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goto bailout;
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}
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printf("%s", (char *) v.iov_base);
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goto bailout;
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} else if (!strcmp(argv[2], "--del")) {
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if(argc <= 3) {
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printf("'--del' operation requires key.\n");
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return 0;
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}
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key.iov_len = sizeof(argv[3]);
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key.iov_base = argv[3];
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rc = mdbx_del(txn, dbi, &key, NULL);
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if (rc != MDBX_SUCCESS) {
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if (rc == MDBX_EINVAL) {
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printf("Key '%s' not found", argv[3]);
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goto bailout;
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}
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fprintf(stderr, "mdbx_put: (%d) %s\n", rc, mdbx_strerror(rc));
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goto bailout;
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}
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rc = mdbx_txn_commit(txn);
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if (rc) {
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fprintf(stderr, "mdbx_txn_commit: (%d) %s\n", rc, mdbx_strerror(rc));
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goto bailout;
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}
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goto bailout;
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} else if (!strcmp(argv[2], "--info")) {
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printf("\tWrite transaction size: up to %zu (0x%zX) pages (%f %s for default "
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"%zuK pagesize, %f %s for %zuK pagesize).\n",
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mdbx_limits_txnsize_max(pagesize_min) / pagesize_min,
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mdbx_limits_txnsize_max(pagesize_min) / pagesize_min,
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mdbx_limits_txnsize_max(-1) / scale_factor, scale_unit,
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pagesize_default / 1024,
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mdbx_limits_txnsize_max(pagesize_max) / scale_factor, scale_unit,
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pagesize_max / 1024);
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printf("\tDatabase size: up to %zu pages (%f %s for default %zuK "
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"pagesize, %f %s for %zuK pagesize).\n",
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mdbx_limits_dbsize_max(pagesize_min) / pagesize_min,
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mdbx_limits_dbsize_max(-1) / scale_factor, scale_unit,
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pagesize_default / 1024,
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mdbx_limits_dbsize_max(pagesize_max) / scale_factor, scale_unit,
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pagesize_max / 1024);
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} else {
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printf("Unknown parameter: '%s'. Type %s --help for help.\n", argv[2], argv[0]);
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}
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bailout:
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if (cursor)
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mdbx_cursor_close(cursor);
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if (txn)
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mdbx_txn_abort(txn);
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if (dbi)
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mdbx_dbi_close(env, dbi);
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if (env)
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mdbx_env_close(env);
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return (rc != MDBX_SUCCESS) ? EXIT_FAILURE : EXIT_SUCCESS;
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}
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