kolibrios/programs/system/kobra/trunk/kolibri.c
vkos 3612344bac Initial commit of Kobra, Kolibri Bus for Reaching Applications
git-svn-id: svn://kolibrios.org@1238 a494cfbc-eb01-0410-851d-a64ba20cac60
2009-10-26 17:03:29 +00:00

132 lines
3.6 KiB
C

/***************************************************************************************************
* Copyright (C) Vasiliy Kosenko (vkos), 2009 *
* This program is free software: you can redistribute it and/or modify it under the terms of the *
* GNU General Public License as published by the Free Software Foundation, either version 3 *
* of the License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; *
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See *
* the GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License along with this program. *
* If not, see <http://www.gnu.org/licenses/>. *
***************************************************************************************************/
/***************************************************************************************************
* kolibri.c - KolibriOS system functions *
***************************************************************************************************/
#include "kolibri.h"
#include "malloc.h"
/*
* IPC functions & data
*/
kolibri_IPC_area_t *kolibri_IPC_area;
int kolibri_IPC_set_area(void *area, int size){
int result;
asm("int $0x40":"=a"(result):"a"(60),"b"(1),"c"(area),"d"(size));
return result;
}
int kolibri_IPC_send(int tid, void *msg, int length){
int result;
asm("movl %5, %%esi\nint $0x40":"=a"(result):"a"(60),"b"(2),"c"(tid),"d"(msg),"g"(length));
return result;
}
void kolibri_IPC_unlock(){
kolibri_IPC_area->lock = 0;
}
void kolibri_IPC_lock(){
kolibri_IPC_area->lock = 1;
}
int kolibri_IPC_init(void *area, int size){
kolibri_IPC_area = (kolibri_IPC_area_t *)area;
kolibri_IPC_area->size = 8;
return kolibri_IPC_set_area(area, size);
}
kolibri_IPC_message_t *kolibri_IPC_get_next_message(){
kolibri_IPC_lock();
return (kolibri_IPC_message_t *)((char *)kolibri_IPC_area+sizeof(kolibri_IPC_area_t));
}
void kolibri_IPC_clear_buff(){
kolibri_IPC_area->size = 8;
kolibri_IPC_unlock();
}
/*
* Other process/thread functions
*/
int kolibri_get_my_tid(){
kolibri_process_info_t *info = malloc(0x400);
int tid;
kolibri_get_process_info(info, -1);
tid = info->tid;
free(info);
return tid;
}
int kolibri_get_process_info(kolibri_process_info_t *info, int slot){
int max_slot;
asm("int $0x40":"=a"(max_slot):"a"(9),"b"(info),"c"(slot));
return max_slot;
}
/*
* Memory functions
*/
kolibri_memarea_t kolibri_new_named_memory(char *name, int size, int flags){
kolibri_memarea_t area;
asm("pushl %%esi\nmovl %6, %%esi\nint $0x40\npopl %%esi":"=a"(area.addr),"=d"(area.error):"a"(68),"b"(22),"c"(name),"d"(size),"g"(flags));
return area;
}
int kolibri_heap_init(){
int size;
asm("int $0x40":"=a"(size):"a"(68),"b"(11));
return size;
}
void *kolibri_malloc(int nbytes){
void *addr;
asm("int $0x40":"=a"(addr):"a"(68),"b"(12),"c"(nbytes));
return addr;
}
/*
* Events functions
*/
void kolibri_set_event_mask(int mask){
asm("int $0x40"::"a"(40),"b"(mask));
}
int kolibri_event_wait(){
int event;
asm("int $0x40":"=a"(event):"a"(10));
return event;
}