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#include "handles.h"
#include "syscall.h"
#include "error.h"
#include "lock.h"
#include "print.h"
static int
s_handle_invoke_objdir_getmemb(
objdir_t *root_dir,
objdir_t *target_dir,
uint8_t *payload,
size_t payload_at
)
{
path_byte_t member;
obj_type_t *dest;
SYSCALL_PAYLOAD_TAKEL(payload, payload_at, member, uint8_t);
SYSCALL_PAYLOAD_TAKEP(payload, payload_at, dest, obj_type_t);
*dest = target_dir->entries[member].type;
#ifdef DBG_SYSCALL
klogf("objdir_getmemb %i ret %i\n", member, *dest);
#endif
return KE_OK;
}
static int
s_handle_invoke_objdir_lastmemb(
objdir_t *root_dir,
objdir_t *target_dir,
uint8_t *payload,
size_t payload_at
)
{
path_byte_t *dest;
SYSCALL_PAYLOAD_TAKEP(payload, payload_at, dest, path_byte_t);
uint8_t lastfull = 0;
for(int i = 1; i < 256; i++) {
if(target_dir->entries[i].type != KO_NONE) lastfull = i;
}
*dest = lastfull;
return 0;
}
static int (*s_invoke_handles[])(objdir_t*, objdir_t*, uint8_t*, size_t) = {
[INVOKE_OBJDIR_GETMEMB] = s_handle_invoke_objdir_getmemb,
[INVOKE_OBJDIR_LASTMEMB] = s_handle_invoke_objdir_lastmemb
};
static size_t s_invoke_handles_count = sizeof(s_invoke_handles) / sizeof(void*);
int
syscall_handle_invoke_objdir(
objdir_t *root_dir,
objdir_entry_t *target_entry,
uint8_t *payload,
size_t payload_at
)
{
uint8_t funcid;
SYSCALL_PAYLOAD_TAKEL(payload, payload_at, funcid, uint8_t);
if(funcid >= s_invoke_handles_count) return -KE_BADFUNC;
objdir_t *target_dir = (objdir_t*)target_entry->data;
if((void*)target_entry == root_dir) target_dir = root_dir;
#ifdef DBG_SYSCALL
klogf("Call %i root_dir %p target %p\n", funcid, root_dir, target_entry);
#endif
mtx_acquire(&target_entry->lock);
int e = s_invoke_handles[funcid](root_dir, target_dir, payload, payload_at);
mtx_release(&target_entry->lock);
return e;
}
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