static int procfs_bind(FAR struct inode *blkdriver, const void *data,
void **handle)
{
/* Make sure that we are properly initialized */
procfs_initialize();
return OK;
}
int procfs_register(FAR const struct procfs_entry_s *entry)
{
FAR struct procfs_entry_s *newtable;
unsigned int newcount;
size_t newsize;
int ret;
/* Make sure that we are properly initialized */
procfs_initialize();
/* realloc the table of procfs entries.
*
* REVISIT: This reallocation may free memory previously used for the
* procfs entry table. If that table were actively in use, then that
* could cause procfs logic to use a stale memory pointer! We avoid that
* problem by requiring that the procfs file be unmounted when the new
* entry is added. That requirment, however, is not enforced explicitly.
*
* Locking the scheduler as done below is insufficient. As would be just
* marking the entries as volatile.
*/
newcount = g_procfs_entrycount + 1;
newsize = newcount * sizeof(struct procfs_entry_s);
sched_lock();
newtable = (FAR struct procfs_entry_s *)kmm_realloc(g_procfs_entries, newsize);
if (newtable == NULL)
{
/* Reallocation failed! */
ret = -ENOMEM;
}
else
{
/* Copy the new entry at the end of the reallocated table */
memcpy(&newtable[g_procfs_entrycount], entry, sizeof(struct procfs_entry_s));
/* Instantiate the reallocated table */
g_procfs_entries = newtable;
g_procfs_entrycount = newcount;
ret = OK;
}
sched_unlock();
return ret;
}
static int __init fullnat_initialize(void)
{
int ret;
ret = procfs_initialize();
if (ret) {
return ret;
}
ret = sysfs_initialize();
if (ret) {
procfs_shutdown();
return ret;
}
ret = rip_initialize();
if (ret) {
sysfs_shutdown();
procfs_shutdown();
return ret;
}
return 0;
}