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#include "block_list.h"
#include "block_range.h"
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
struct block_list {
FILE *f;
const char *mountpoint;
const char *filename;
struct block_range_list blocks;
};
static void *init(const char *file, const char *mountpoint)
{
struct block_list *params = calloc(1, sizeof(*params));
if (!params)
return NULL;
params->mountpoint = mountpoint;
params->f = fopen(file, "w+");
if (!params->f) {
free(params);
return NULL;
}
return params;
}
static int start_new_file(char *path, ext2_ino_t ino EXT2FS_ATTR((unused)),
struct ext2_inode *inode EXT2FS_ATTR((unused)),
void *data)
{
struct block_list *params = data;
params->filename = LINUX_S_ISREG(inode->i_mode) ? path : NULL;
return 0;
}
static int add_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk64_t blocknr,
int metadata, void *data)
{
struct block_list *params = data;
if (params->filename && !metadata)
add_blocks_to_range(¶ms->blocks, blocknr, blocknr);
return 0;
}
static int inline_data(void *inline_data EXT2FS_ATTR((unused)),
void *data EXT2FS_ATTR((unused)))
{
return 0;
}
static int end_new_file(void *data)
{
struct block_list *params = data;
if (!params->filename || !params->blocks.head)
return 0;
if (fprintf(params->f, "%s%s ", params->mountpoint,
params->filename) < 0
|| write_block_ranges(params->f, params->blocks.head, " ")
|| fwrite("\n", 1, 1, params->f) != 1)
return -1;
delete_block_ranges(¶ms->blocks);
return 0;
}
static int cleanup(void *data)
{
struct block_list *params = data;
fclose(params->f);
free(params);
return 0;
}
struct fsmap_format block_list_format = {
.init = init,
.start_new_file = start_new_file,
.add_block = add_block,
.inline_data = inline_data,
.end_new_file = end_new_file,
.cleanup = cleanup,
};
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