shithub: lwext4

ref: 0f1cc07213540e99bdfe5c4ee6c49b6e583ffbb7
dir: /demos/generic/main.c/

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/*
 * Copyright (c) 2013 Grzegorz Kostka (kostka.grzegorz@gmail.com)
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <getopt.h>
#include <stdbool.h>
#include <time.h>
#include <unistd.h>

#include <ext4_filedev.h>
#include <io_raw.h>
#include <ext4.h>

#ifdef WIN32
#include <windows.h>
#endif

/**@brief   Input stream name.*/
char input_name[128] = "ext2";

/**@brief	Read-write size*/
static int rw_szie  = 1024 * 1024;

/**@brief	Read-write size*/
static int rw_count = 10;

/**@brief   Directory test count*/
static int dir_cnt  = 0;

/**@brief   Static or dynamic cache mode*/
static bool cache_mode = true;

/**@brief   Cleanup after test.*/
static bool cleanup_flag = false;

/**@brief   Block device stats.*/
static bool bstat = false;

/**@brief   Superblock stats.*/
static bool sbstat = false;

/**@brief   Indicates that input is windows partition.*/
static bool winpart = false;

/**@brief	File write buffer*/
static uint8_t	*wr_buff;

/**@brief	File read buffer.*/
static uint8_t	*rd_buff;

/**@brief	Block device handle.*/
static struct ext4_blockdev *bd;

/**@brief	Block cache handle.*/
static struct ext4_bcache   *bc;

static const char *usage = "									\n\
Welcome in ext4 generic demo.									\n\
Copyright (c) 2013 Grzegorz Kostka (kostka.grzegorz@gmail.com)	\n\
Usage:															\n\
    --i   - input file             (default = ext2)				\n\
    --rws - single R/W size        (default = 1024)				\n\
    --rwc - R/W count              (default = 10000) 			\n\
    --cache  - 0 static, 1 dynamic  (default = 1)                \n\
    --dirs   - directory test count (default = 0)                \n\
    --clean  - clean up after test                               \n\
    --bstat  - block device stats                                \n\
    --sbstat - superblock stats                                  \n\
    --wpart  - windows partition mode                            \n\
\n";

static char* entry_to_str(uint8_t type)
{
	switch(type){
	case EXT4_DIRENTRY_UNKNOWN:
		return "[UNK] ";
	case EXT4_DIRENTRY_REG_FILE:
		return "[FIL] ";
	case EXT4_DIRENTRY_DIR:
		return "[DIR] ";
	case EXT4_DIRENTRY_CHRDEV:
		return "[CHA] ";
	case EXT4_DIRENTRY_BLKDEV:
		return "[BLK] ";
	case EXT4_DIRENTRY_FIFO:
		return "[FIF] ";
	case EXT4_DIRENTRY_SOCK:
		return "[SOC] ";
	case EXT4_DIRENTRY_SYMLINK:
		return "[SYM] ";
	default:
		break;
	}
	return "[???]";
}

static void dir_ls(const char *path)
{
	int j = 0;
	char sss[255];
	ext4_dir d;
	ext4_direntry *de;

	printf("**********************************************\n");

	ext4_dir_open(&d, path);
	de = ext4_dir_entry_get(&d, j++);
	printf("ls %s\n", path);

	while(de){
		memcpy(sss, de->name, de->name_length);
		sss[de->name_length] = 0;
		printf("%s", entry_to_str(de->inode_type));
		printf("%s", sss);
		printf("\n");
		de = ext4_dir_entry_get(&d, j++);
	}
	printf("**********************************************\n");
	ext4_dir_close(&d);
}

static void mp_stats(void)
{
    struct ext4_mount_stats stats;
    ext4_mount_point_stats("/mp/", &stats);

    printf("**********************************************\n");
    printf("ext4_mount_point_stats\n");
    printf("inodes_count        = %u\n", stats.inodes_count);
    printf("free_inodes_count   = %u\n", stats.free_inodes_count);
    printf("blocks_count        = %u\n", (uint32_t)stats.blocks_count);
    printf("free_blocks_count   = %u\n", (uint32_t)stats.free_blocks_count);
    printf("block_size          = %u\n", stats.block_size);
    printf("block_group_count   = %u\n", stats.block_group_count);
    printf("blocks_per_group    = %u\n", stats.blocks_per_group);
    printf("inodes_per_group    = %u\n", stats.inodes_per_group);
    printf("volume_name         = %s\n", stats.volume_name);

    printf("**********************************************\n");

}

static void block_stats(void)
{
    uint32_t i;

    printf("**********************************************\n");
    printf("ext4 blockdev stats\n");
    printf("bdev->bread_ctr          = %u\n", bd->bread_ctr);
    printf("bdev->bwrite_ctr         = %u\n", bd->bwrite_ctr);


    printf("bcache->ref_blocks       = %u\n", bc->ref_blocks);
    printf("bcache->max_ref_blocks   = %u\n", bc->max_ref_blocks);
    printf("bcache->lru_ctr          = %u\n", bc->lru_ctr);

    printf("\n");
    for (i = 0; i < bc->cnt; ++i) {
        printf("bcache->refctr[%d]     = %u\n", i, bc->refctr[i]);
    }

    printf("\n");
    for (i = 0; i < bc->cnt; ++i) {
        printf("bcache->lru_id[%d]     = %u\n", i, bc->lru_id[i]);
    }

    printf("\n");
    for (i = 0; i < bc->cnt; ++i) {
        printf("bcache->free_delay[%d] = %d\n", i, bc->free_delay[i]);
    }

    printf("\n");
    for (i = 0; i < bc->cnt; ++i) {
        printf("bcache->lba[%d]        = %u\n", i, (uint32_t)bc->lba[i]);
    }

    printf("**********************************************\n");
}

static clock_t get_ms(void)
{
    struct timeval t;
    gettimeofday(&t, NULL);
    return (t.tv_sec * 1000) + (t.tv_usec / 1000);
}

static bool dir_test(int len)
{
    ext4_file f;
    int       r;
    int       i;
    char path[64];
    clock_t diff;
    clock_t stop;
    clock_t start;
    start = get_ms();

    printf("Directory create: /mp/dir1\n");
    r = ext4_dir_mk("/mp/dir1");
    if(r != EOK){
        printf("Unable to create directory: /mp/dir1\n");
        return false;
    }


    printf("Add files to: /mp/dir1\n");
    for (i = 0; i < len; ++i) {
        sprintf(path, "/mp/dir1/f%d", i);
        r = ext4_fopen(&f, path, "wb");
        if(r != EOK){
            printf("Unable to create file in directory: /mp/dir1\n");
            return false;
        }
    }

    stop =  get_ms();
    diff = stop - start;
    dir_ls("/mp/dir1");
    printf("dir_test time: %d ms\n", (int)diff);
    return true;
}


static bool file_test(void)
{
    int r;
    uint32_t  size;
    ext4_file f;
    int i;
    clock_t start;
    clock_t stop;
    clock_t diff;
    uint32_t kbps;
    uint64_t size_bytes;
    /*Add hello world file.*/
    r = ext4_fopen(&f, "/mp/hello.txt", "wb");
    r = ext4_fwrite(&f, "Hello World !\n", strlen("Hello World !\n"), 0);
    r = ext4_fclose(&f);


    printf("ext4_fopen: test1\n");

    start = get_ms();
    r = ext4_fopen(&f, "/mp/test1", "wb");
    if(r != EOK){
        printf("ext4_fopen ERROR = %d\n", r);
        return false;
    }

    printf("ext4_write: %d * %d ..." , rw_szie, rw_count);
    for (i = 0; i < rw_count; ++i) {

        memset(wr_buff, i % 10 + '0', rw_szie);

        r = ext4_fwrite(&f, wr_buff, rw_szie, &size);

        if((r != EOK) || (size != rw_szie))
            break;
    }

    if(i != rw_count){
        printf("ERROR: rw_count = %d\n", i);
        return false;
    }

    printf("OK\n");
    stop = get_ms();
    diff = stop - start;
    size_bytes = rw_szie * rw_count;
    size_bytes = (size_bytes * 1000) / 1024;
    kbps = (size_bytes) / (diff + 1);
    printf("file_test write time: %d ms\n", (int)diff);
    printf("file_test write speed: %d KB/s\n", kbps);
    r = ext4_fclose(&f);
    printf("ext4_fopen: test1\n");


    start = get_ms();
    r = ext4_fopen(&f, "/mp/test1", "r+");
    if(r != EOK){
        printf("ext4_fopen ERROR = %d\n", r);
        return false;
    }

    printf("ext4_read: %d * %d ..." , rw_szie, rw_count);

    for (i = 0; i < rw_count; ++i) {
        memset(wr_buff, i % 10 + '0', rw_szie);
        r = ext4_fread(&f, rd_buff, rw_szie, &size);

        if((r != EOK) || (size != rw_szie))
            break;

        if(memcmp(rd_buff, wr_buff, rw_szie)){
            break;
        }
    }
    if(i != rw_count){
        printf("ERROR: rw_count = %d\n", i);
        return false;
    }
    printf("OK\n");
    stop = get_ms();
    diff = stop - start;
    size_bytes = rw_szie * rw_count;
    size_bytes = (size_bytes * 1000) / 1024;
    kbps = (size_bytes) / (diff + 1);
    printf("file_test read time: %d ms\n", (int)diff);
    printf("file_test read speed: %d KB/s\n", kbps);
    r = ext4_fclose(&f);

    return true;

}
static void cleanup(void)
{
    clock_t start;
    clock_t stop;
    clock_t diff;

    ext4_fremove("/mp/hello.txt");

    printf("cleanup: remove /mp/test1\n");
    start = get_ms();
    ext4_fremove("/mp/test1");
    stop = get_ms();
    diff = stop - start;
    printf("cleanup: time: %d ms\n", (int)diff);


    printf("cleanup: remove /mp/dir1\n");
    start =get_ms();
    ext4_dir_rm("/mp/dir1");
    stop = get_ms();
    diff = stop - start;
    printf("cleanup: time: %d ms\n", (int)diff);
}

static bool open_filedev(void)
{
    ext4_filedev_filename(input_name);
    bd = ext4_filedev_get();
    bc = ext4_filecache_get();
    if(!bd || !bc){
        printf("Block device ERROR\n");
        return false;
    }
    return true;
}

static bool open_winpartition(void)
{
#ifdef WIN32
    ext4_io_raw_filename(input_name);
    bd = ext4_io_raw_dev_get();
    bc = ext4_io_raw_cache_get();
    if(!bd || !bc){
        printf("Block device ERROR\n");
        return false;
    }
    return true;
#else
    printf("open_winpartition: this mode shouls be used only under windows !\n");
    return false;
#endif
}

static bool mount(void)
{
    int r;
    if(winpart){
         if(!open_winpartition())
             return false;
    }else{
        if(!open_filedev())
            return false;

    }
    wr_buff = malloc(rw_szie);
    rd_buff = malloc(rw_szie);

    if(!wr_buff || !rd_buff){
        printf("Read-Write allocation ERROR\n");
        return EXIT_FAILURE;
    }

    ext4_dmask_set(EXT4_DEBUG_ALL);

    r = ext4_device_register(bd, cache_mode ? 0 : bc, "ext4_filesim");
    if(r != EOK){
        printf("ext4_device_register ERROR = %d\n", r);
        return false;
    }

    r = ext4_mount("ext4_filesim", "/mp/");
    if(r != EOK){
        printf("ext4_mount ERROR = %d\n", r);
        return false;
    }

    return true;
}

static bool umount(void)
{
    int r = ext4_umount("/mp/");
    if(r != EOK){
        printf("ext4_umount: FAIL %d", r);
        return false;
    }
    return true;
}

static bool parse_opt(int argc, char **argv)
{
    int option_index = 0;
    int c;

    static struct option long_options[] =
      {
        {"in",      required_argument, 0, 'a'},
        {"rws",     required_argument, 0, 'b'},
        {"rwc",     required_argument, 0, 'c'},
        {"cache",   required_argument, 0, 'd'},
        {"dirs",    required_argument, 0, 'e'},
        {"clean",   no_argument,       0, 'f'},
        {"bstat",   no_argument,       0, 'g'},
        {"sbstat",  no_argument,       0, 'h'},
        {"wpart",   no_argument,       0, 'i'},
        {0, 0, 0, 0}
      };

    while(-1 != (c = getopt_long (argc, argv, "a:b:c:d:e:fghi", long_options, &option_index))) {

        switch(c){
            case 'a':
                strcpy(input_name, optarg);
                break;
            case 'b':
                rw_szie = atoi(optarg);
                break;
            case 'c':
                rw_count = atoi(optarg);
                break;
            case 'd':
                cache_mode = atoi(optarg);
                break;
            case 'e':
                dir_cnt = atoi(optarg);
                break;
            case 'f':
                cleanup_flag = true;
                break;
            case 'g':
                bstat = true;
                break;
            case 'h':
                sbstat = true;
                break;
            case 'i':
                winpart = true;
                break;
            default:
                printf("%s", usage);
                return false;

        }
    }
    return true;
}

int main(int argc, char **argv)
{
    if(!parse_opt(argc, argv))
        return EXIT_FAILURE;

    printf("Test conditions:\n");
    printf("Imput name: %s\n", input_name);
    printf("RW size: %d\n",  rw_szie);
    printf("RW count: %d\n", rw_count);
    printf("Cache mode: %s\n", cache_mode ? "dynamic" : "static");

    if(!mount())
        return EXIT_FAILURE;


    cleanup();

    if(sbstat)
        mp_stats();

    dir_ls("/mp/");
    fflush(stdout);
    if(!dir_test(dir_cnt))
	    return EXIT_FAILURE;

    fflush(stdout);
	if(!file_test())
	    return EXIT_FAILURE;

	fflush(stdout);
	dir_ls("/mp/");

	if(sbstat)
	    mp_stats();

	if(cleanup_flag)
	    cleanup();

    if(bstat)
        block_stats();

    if(!umount())
        return EXIT_FAILURE;

    printf("Test finish: OK\n");
    return EXIT_SUCCESS;

}