char *
dec_ctx_init(struct dec_ctx *ctx, struct membuf *inbuf, struct membuf *outbuf)
{
char *encoding;
ctx->bits_read = 0;
ctx->inbuf = membuf_get(inbuf);
ctx->inend = membuf_memlen(inbuf);
ctx->inpos = 0;
ctx->outbuf = outbuf;
/* init bitbuf */
ctx->bitbuf = get_byte(ctx);
/* init tables */
table_init(ctx, ctx->t);
encoding = table_dump(ctx->t);
return encoding;
}
int
main (int argc, char *argv[])
{
int table_bytes;
int lock_bytes;
int i;
srand ( getpid () + getuid () );
start_pes (0);
me = _my_pe ();
npes = _num_pes ();
/*
* size of the per-PE partition
*/
ip_pe = table_size / npes;
/*
* each PE only stores what it owns
*/
table_bytes = sizeof (*table) * ip_pe;
table = shmalloc (table_bytes); /* !!! unchecked !!! */
/*
* initialize table
*/
for (i = 0; i < ip_pe; i+= 1)
{
table[i] = 0;
}
/*
* each PE needs to be able to lock everywhere
*/
lock_bytes = sizeof (*lock) * table_size;
lock = shmalloc (lock_bytes); /* !!! unchecked !!! */
/*
* initialize locks
*/
for (i = 0; i < table_size; i+= 1)
{
lock[i] = 0L;
}
/*
* make sure all PEs have initialized symmetric data
*/
shmem_barrier_all ();
for (i = 0; i < 4; i += 1)
{
const int updater = rand () % npes;
if (me == updater)
{
const int i2u = rand () % table_size;
const int nv = rand () % 100;
printf ("PE %d: About to update index %d with %d...\n",
me, i2u, nv
);
table_update (nv, i2u);
}
}
shmem_barrier_all ();
/*
* everyone shows their part of the table
*/
table_dump ();
/*
* clean up allocated memory
*/
shmem_barrier_all ();
shfree (lock);
shfree (table);
return 0;
}
int lang_t(){
PTOKEN* p = (PTOKEN*) dstack_pop();
dstack_push( table_dump(p) );
}
/*
* This function print the results of the command "btrfs fi usage"
* in tabular format
*/
static void _cmd_filesystem_usage_tabular(unsigned unit_mode,
struct btrfs_ioctl_space_args *sargs,
struct chunk_info *chunks_info_ptr,
int chunks_info_count,
struct device_info *device_info_ptr,
int device_info_count)
{
int i;
u64 total_unused = 0;
struct string_table *matrix = 0;
int ncols, nrows;
ncols = sargs->total_spaces + 2;
nrows = 2 + 1 + device_info_count + 1 + 2;
matrix = table_create(ncols, nrows);
if (!matrix) {
fprintf(stderr, "ERROR: not enough memory\n");
return;
}
/* header */
for (i = 0; i < sargs->total_spaces; i++) {
const char *description;
u64 flags = sargs->spaces[i].flags;
if (flags & BTRFS_SPACE_INFO_GLOBAL_RSV)
continue;
description = btrfs_group_type_str(flags);
table_printf(matrix, 1+i, 0, "<%s", description);
}
for (i = 0; i < sargs->total_spaces; i++) {
const char *r_mode;
u64 flags = sargs->spaces[i].flags;
r_mode = btrfs_group_profile_str(flags);
table_printf(matrix, 1+i, 1, "<%s", r_mode);
}
table_printf(matrix, 1+sargs->total_spaces, 1, "<Unallocated");
/* body */
for (i = 0; i < device_info_count; i++) {
int k, col;
char *p;
u64 total_allocated = 0, unused;
p = strrchr(device_info_ptr[i].path, '/');
if (!p)
p = device_info_ptr[i].path;
else
p++;
table_printf(matrix, 0, i + 3, "<%s", device_info_ptr[i].path);
for (col = 1, k = 0 ; k < sargs->total_spaces ; k++) {
u64 flags = sargs->spaces[k].flags;
u64 devid = device_info_ptr[i].devid;
int j;
u64 size = 0;
for (j = 0 ; j < chunks_info_count ; j++) {
if (chunks_info_ptr[j].type != flags )
continue;
if (chunks_info_ptr[j].devid != devid)
continue;
size += calc_chunk_size(chunks_info_ptr+j);
}
if (size)
table_printf(matrix, col, i+3,
">%s", pretty_size_mode(size, unit_mode));
else
table_printf(matrix, col, i+3, ">-");
total_allocated += size;
col++;
}
unused = get_partition_size(device_info_ptr[i].path)
- total_allocated;
table_printf(matrix, sargs->total_spaces + 1, i + 3,
">%s", pretty_size_mode(unused, unit_mode));
total_unused += unused;
}
for (i = 0; i <= sargs->total_spaces; i++)
table_printf(matrix, i + 1, device_info_count + 3, "=");
/* footer */
table_printf(matrix, 0, device_info_count + 4, "<Total");
for (i = 0; i < sargs->total_spaces; i++)
table_printf(matrix, 1 + i, device_info_count + 4, ">%s",
pretty_size_mode(sargs->spaces[i].total_bytes, unit_mode));
table_printf(matrix, sargs->total_spaces + 1, device_info_count + 4,
">%s", pretty_size_mode(total_unused, unit_mode));
table_printf(matrix, 0, device_info_count + 5, "<Used");
for (i = 0; i < sargs->total_spaces; i++)
table_printf(matrix, 1 + i, device_info_count+5, ">%s",
pretty_size_mode(sargs->spaces[i].used_bytes, unit_mode));
table_dump(matrix);
table_free(matrix);
}
/*
* This function print the results of the command "btrfs fi usage"
* in tabular format
*/
static void _cmd_filesystem_usage_tabular(unsigned unit_mode,
struct btrfs_ioctl_space_args *sargs,
struct chunk_info *chunks_info_ptr,
int chunks_info_count,
struct device_info *device_info_ptr,
int device_info_count)
{
int i;
u64 total_unused = 0;
struct string_table *matrix = NULL;
int ncols, nrows;
int col;
int unallocated_col;
int spaceinfos_col;
const int vhdr_skip = 3; /* amount of vertical header space */
/* id, path, unallocated */
ncols = 3;
spaceinfos_col = 2;
/* Properly count the real space infos */
for (i = 0; i < sargs->total_spaces; i++) {
if (sargs->spaces[i].flags & BTRFS_SPACE_INFO_GLOBAL_RSV)
continue;
ncols++;
}
/* 2 for header, empty line, devices, ===, total, used */
nrows = vhdr_skip + device_info_count + 1 + 2;
matrix = table_create(ncols, nrows);
if (!matrix) {
error("not enough memory");
return;
}
/*
* We have to skip the global block reserve everywhere as it's an
* artificial blockgroup
*/
/* header */
for (i = 0, col = spaceinfos_col; i < sargs->total_spaces; i++) {
u64 flags = sargs->spaces[i].flags;
if (flags & BTRFS_SPACE_INFO_GLOBAL_RSV)
continue;
table_printf(matrix, col, 0, "<%s",
btrfs_group_type_str(flags));
table_printf(matrix, col, 1, "<%s",
btrfs_group_profile_str(flags));
col++;
}
unallocated_col = col;
table_printf(matrix, 0, 1, "<Id");
table_printf(matrix, 1, 1, "<Path");
table_printf(matrix, unallocated_col, 1, "<Unallocated");
/* body */
for (i = 0; i < device_info_count; i++) {
int k;
char *p;
u64 total_allocated = 0, unused;
p = strrchr(device_info_ptr[i].path, '/');
if (!p)
p = device_info_ptr[i].path;
else
p++;
table_printf(matrix, 0, vhdr_skip + i, ">%llu",
device_info_ptr[i].devid);
table_printf(matrix, 1, vhdr_skip + i, "<%s",
device_info_ptr[i].path);
for (col = spaceinfos_col, k = 0; k < sargs->total_spaces; k++) {
u64 flags = sargs->spaces[k].flags;
u64 devid = device_info_ptr[i].devid;
int j;
u64 size = 0;
if (flags & BTRFS_SPACE_INFO_GLOBAL_RSV)
continue;
for (j = 0 ; j < chunks_info_count ; j++) {
if (chunks_info_ptr[j].type != flags )
continue;
if (chunks_info_ptr[j].devid != devid)
continue;
size += calc_chunk_size(chunks_info_ptr+j);
}
if (size)
table_printf(matrix, col, vhdr_skip+ i,
">%s", pretty_size_mode(size, unit_mode));
else
table_printf(matrix, col, vhdr_skip + i, ">-");
total_allocated += size;
col++;
}
unused = get_partition_size(device_info_ptr[i].path)
- total_allocated;
table_printf(matrix, unallocated_col, vhdr_skip + i,
">%s", pretty_size_mode(unused, unit_mode));
total_unused += unused;
}
for (i = 0; i < spaceinfos_col; i++) {
table_printf(matrix, i, vhdr_skip - 1, "*-");
table_printf(matrix, i, vhdr_skip + device_info_count, "*-");
}
for (i = 0, col = spaceinfos_col; i < sargs->total_spaces; i++) {
if (sargs->spaces[i].flags & BTRFS_SPACE_INFO_GLOBAL_RSV)
continue;
table_printf(matrix, col, vhdr_skip - 1, "*-");
table_printf(matrix, col, vhdr_skip + device_info_count, "*-");
col++;
}
/* One for Unallocated */
table_printf(matrix, col, vhdr_skip - 1, "*-");
table_printf(matrix, col, vhdr_skip + device_info_count, "*-");
/* footer */
table_printf(matrix, 1, vhdr_skip + device_info_count + 1, "<Total");
for (i = 0, col = spaceinfos_col; i < sargs->total_spaces; i++) {
if (sargs->spaces[i].flags & BTRFS_SPACE_INFO_GLOBAL_RSV)
continue;
table_printf(matrix, col++, vhdr_skip + device_info_count + 1,
">%s",
pretty_size_mode(sargs->spaces[i].total_bytes, unit_mode));
}
table_printf(matrix, unallocated_col, vhdr_skip + device_info_count + 1,
">%s", pretty_size_mode(total_unused, unit_mode));
table_printf(matrix, 1, vhdr_skip + device_info_count + 2, "<Used");
for (i = 0, col = spaceinfos_col; i < sargs->total_spaces; i++) {
if (sargs->spaces[i].flags & BTRFS_SPACE_INFO_GLOBAL_RSV)
continue;
table_printf(matrix, col++, vhdr_skip + device_info_count + 2,
">%s",
pretty_size_mode(sargs->spaces[i].used_bytes, unit_mode));
}
table_dump(matrix);
table_free(matrix);
}
