static rtems_filesystem_mount_table_entry_t *alloc_mount_table_entry(
const char *source_or_null,
const char *target_or_null,
const char *filesystemtype,
size_t *target_length_ptr
)
{
const char *target = target_or_null != NULL ? target_or_null : "/";
size_t filesystemtype_size = strlen( filesystemtype ) + 1;
size_t source_size = source_or_null != NULL ?
strlen( source_or_null ) + 1 : 0;
size_t target_size = strlen( target ) + 1;
size_t size = sizeof( rtems_filesystem_mount_table_entry_t )
+ filesystemtype_size + source_size + target_size
+ sizeof( rtems_filesystem_global_location_t );
rtems_filesystem_mount_table_entry_t *mt_entry = calloc( 1, size );
if ( mt_entry != NULL ) {
rtems_filesystem_global_location_t *mt_fs_root =
(rtems_filesystem_global_location_t *)
((char *) mt_entry + sizeof( *mt_entry ));
char *str = (char *) mt_fs_root + sizeof( *mt_fs_root );
memcpy( str, filesystemtype, filesystemtype_size );
mt_entry->type = str;
str += filesystemtype_size;
if ( source_or_null != NULL ) {
memcpy( str, source_or_null, source_size );
mt_entry->dev = str;
str += source_size;
}
memcpy( str, target, target_size );
mt_entry->target = str;
str += target_size;
mt_entry->mounted = true;
mt_entry->mt_fs_root = mt_fs_root;
mt_entry->pathconf_limits_and_options = &rtems_filesystem_default_pathconf;
mt_fs_root->location.mt_entry = mt_entry;
mt_fs_root->reference_count = 1;
rtems_chain_initialize(
&mt_entry->location_chain,
mt_fs_root,
1,
sizeof(*mt_fs_root)
);
}
*target_length_ptr = target_size - 1;
return mt_entry;
}
static void extend_descriptors(rtems_rbheap_control *control)
{
rtems_chain_control *chain =
rtems_rbheap_get_spare_descriptor_chain(control);
rtems_rbheap_set_extend_descriptors(
control,
rtems_rbheap_extend_descriptors_never
);
rtems_chain_initialize(
chain,
chunks,
PAGE_COUNT,
sizeof(chunks [0])
);
}
int rtems_print_printer_task(
rtems_printer *printer,
rtems_printer_task_context *ctx
)
{
rtems_status_code sc;
if ( ctx->buffer_size < sizeof( printer_task_buffer ) ) {
return EINVAL;
}
sc = rtems_task_create(
rtems_build_name( 'P', 'R', 'N', 'T'),
ctx->task_priority,
ctx->task_stack_size,
RTEMS_DEFAULT_MODES,
RTEMS_DEFAULT_ATTRIBUTES,
&ctx->task
);
if ( sc != RTEMS_SUCCESSFUL ) {
return ENOMEM;
}
rtems_chain_initialize_empty( &ctx->todo_buffers );
rtems_chain_initialize(
&ctx->free_buffers,
ctx->buffer_table,
ctx->buffer_count,
ctx->buffer_size
);
ctx->buffer_size -= sizeof( printer_task_buffer );
printer->context = ctx;
printer->printer = printer_task_printer;
rtems_task_start( ctx->task, printer_task, (rtems_task_argument) ctx );
return 0;
}
