KolibriOS/kolibrios
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1) First commit of libIPC

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2) Kobra (0.1.1) uses libIPC, compilation changed, files with non-kobra functions moved to framework



git-svn-id: svn://kolibrios.org@1286 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
vkos
2009-11-25 18:23:48 +00:00
parent 48f7d9c554
commit 42f40b69fb
22 changed files with 1084 additions and 116 deletions
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programs/develop/libraries/framework/trunk/config.mk Normal file
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CC=gcc
AS=gcc
LD=ld
OBJCOPY=objcopy
READELF=readelf
MCOPY=mcopy
RM=rm -rf
CFLAGS=-c -m32 -O2 -I$(ROOT)/include/
ASFLAGS=-c -m32
LDFLAGS=-nostdlib -T kolibri.ld -melf_i386
OBJCOPYFLAGS=-O binary
READELFFLAGS=--syms
MCOPYFLAGS=-D o
.c.o:
$(CC) $(CFLAGS) -o $*.o $<
.s.o:
$(AS) $(ASFLAGS) $*.o $<

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programs/develop/libraries/framework/trunk/gpl3.txt Normal file
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notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.

27
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/*******************************************************************************
* Copyright (C) 2009 Vasiliy Kosenko *
* *
* 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, write to the Free Software *
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. *
*******************************************************************************/
#ifndef _DEFS_H_
#define _DEFS_H_
#define NULL 0
#define bool int
#define true 1
#define false 0
#endif

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/*******************************************************************************
* Copyright (C) 2009 Vasiliy Kosenko *
* *
* 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, write to the Free Software *
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. *
*******************************************************************************/
#ifndef _HEAP_H_
#define _HEAP_H_
#include "defs.h"
#define PAGE_SIZE 0x1000
typedef struct MemBlock {
struct MemBlock *next;
struct MemBlock *previos;
unsigned long nblocks;
unsigned long align;
} MemBlock;
typedef struct Heap {
struct MemBlock *free;
struct MemBlock *allocated;
void *(*alloc)(struct Heap *heap, int nbytes);
} Heap;
void *halMemAlloc(Heap *wheap, unsigned long n);
void halMemFree(Heap *wheap, void *addr);
MemBlock *halMemBlockAdd(MemBlock *heap, MemBlock *unit, bool optimize);
MemBlock *halMemBlockRemove(MemBlock *unit);
void halMemHeapInit(Heap *wheap, void *(*alloc)(Heap *heap, int nbytes), void *st_addr, int size);
#endif

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/***************************************************************************************************
* 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/>. *
***************************************************************************************************/
#ifndef _IPC_H_
#define _IPC_H_
#include "defs.h"
#define IPC_BUFFER_SIZE 0x1000
#define IPC_MAX_ERRORS 10
#define IPC_NO_MEMORY 1
#define IPC_CANNOT_SET_MASK 2
#define IPC_NO_AREA 1
#define IPC_BUFFER_LOCKED 2
#define IPC_OVERFLOW 3
#define IPC_NO_TID 4
/*
* Data types
*/
//
typedef struct kolibri_IPC_area {
unsigned long lock;
unsigned long size;
} IPCArea;
typedef struct kolibri_IPC_area kolibri_IPC_area_t;
//
typedef struct kolibri_IPC_message {
unsigned long tid;
unsigned long length;
} Message;
typedef struct kolibri_IPC_message kolibri_IPC_message_t;
/*
* High level IPC functions
*/
extern IPCArea *ipc_area;
int IPCInit(void);
int IPCSend(int tid, void *message, int length);
bool IPCCheck(void);
bool IPCCheckWait(int time);
Message *IPCGetNextMessage(void);
Message *IPCWaitMessage(int time);
void IPCLock(void);
void IPCUnlock(void);
/*
* Kolibri IPC functions & data
*/
extern kolibri_IPC_area_t *kolibri_IPC_area;
int kolibri_IPC_set_area(void *area, int size);
int kolibri_IPC_send(int tid, void *msg, int length);
void kolibri_IPC_unlock();
void kolibri_IPC_lock();
int kolibri_IPC_init(void *area, int size);
kolibri_IPC_message_t *kolibri_IPC_get_next_message();
// void kolibri_IPC_clear_buff();
#endif

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/***************************************************************************************************
* 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/>. *
***************************************************************************************************/
#ifndef _KOLIBRI_H_
#define _KOLIBRI_H_
#define KOLIBRI_ACCESS_READ 0x0
#define KOLIBRI_CREATE 0x8
#define KOLIBRI_EVENT_IPC_MASK 0x40
#define KOLIBRI_EVENT_IPC 0x7
//
struct kolibri_memarea {
void *addr;
int error; // or size
char *name;
};
typedef struct kolibri_memarea kolibri_memarea_t;
//
#pragma pack(push,1)
struct kolibri_process_info {
long cpu_using; // +0
short window_position; // +4
short window_position_slot; // +6
short reserved_0; // +8
char name[11]; // +10
char reserved_const_0; // +21
unsigned long addr; // +22
long mem_using; // +26
long tid; // +30
long window_x;
long window_y;
long window_width;
long window_height;
short state;
short reserved_const_1;
long window_client_x;
long window_client_y;
long window_client_width;
long window_client_height;
char window_state;
};
#pragma pack(pop)
typedef struct kolibri_process_info kolibri_process_info_t;
//
//extern kolibri_IPC_area_t *kolibri_IPC_area;
// //
// int kolibri_IPC_set_area(void *area, int size);
// int kolibri_IPC_send(int tid, void *msg, int length);
// void kolibri_IPC_unlock();
// void kolibri_IPC_lock();
// int kolibri_IPC_init(void *area, int size);
// kolibri_IPC_message_t *kolibri_IPC_get_next_message();
// void kolibri_IPC_clear_buff();
int kolibri_event_wait();
/*
* Memory functions
*/
kolibri_memarea_t kolibri_new_named_memory(char *name, int size, int flags);
int kolibri_heap_init();
void *kolibri_malloc(int nbytes);
/*
* Events functions
*/
void kolibri_set_event_mask(int mask);
#endif

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/***************************************************************************************************
* 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/>. *
***************************************************************************************************/
/***************************************************************************************************
* malloc.c - realisation of malloc & free functions based on heap.c *
***************************************************************************************************/
#ifndef _MALLOC_H_
#define _MALLOC_H_
#include "heap.h"
extern Heap malloc_heap;
void malloc_init();
void *heap_alloc(Heap *wheap, int nbytes);
void *malloc(int nbytes);
void free(void *addr);
#endif

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/***************************************************************************************************
* Copyright (C) Vasiliy Kosenko (vkos), 2009 *
* Kobra 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. *
* *
* Kobra 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 Kobra. *
* If not, see <http://www.gnu.org/licenses/>. *
***************************************************************************************************/
#ifndef _MEMCPY_H_
#define _MEMCPY_H_
void *memcpy(void *dst, void *src, int length);
char strcmp(char *s1, char *s2);
int strlen(char *s);
char *strcpy(char *dest, char *src);
#endif

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/***************************************************************************************************
* 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"
/*
* 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
*/
int kolibri_event_mask;
int kolibri_event_set_mask(int mask){
kolibri_event_mask = mask;
asm("int $0x40"::"a"(40),"b"(kolibri_event_mask));
return 0;
}
int kolibri_event_get_mask(int mask){
return kolibri_event_mask;
}
void kolibri_event_add_mask(int amask){
kolibri_event_set_mask(kolibri_event_mask | amask);
}
void kolibri_event_sub_mask(int amask){
kolibri_event_set_mask(kolibri_event_mask & ~amask);
}
int kolibri_event_wait(int time){
int event;
if (!time) {
asm("int $0x40":"=a"(event):"a"(11));
} else if (time == -1) {
asm("int $0x40":"=a"(event):"a"(10));
} else {
asm("int $0x40":"=a"(event):"a"(23),"b"(time));
}
return event;
}

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ROOT=..
include ../config.mk
all: kolibri.o

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/***************************************************************************************************
* 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/>. *
***************************************************************************************************/
#include <ipc.h>
#include <malloc.h>
#include <kolibri.h>
#include <defs.h>
#include <stdlib.h>
/*
* High level IPC functions
*/
IPCArea *ipc_area = NULL;
int IPCInit(void){
ipc_area = malloc(IPC_BUFFER_SIZE);
if (!ipc_area) {
return IPC_NO_MEMORY;
}
return kolibri_IPC_init(ipc_area, IPC_BUFFER_SIZE);
}
int IPCSend(int tid, void *message, int length){
int err_count = IPC_MAX_ERRORS;
int err;
while (--err_count) {
if (!(err = kolibri_IPC_send(tid, message, length)) || err == IPC_NO_AREA || err == IPC_NO_TID) {
return err;
}
}
return err;
}
bool IPCCheck(void){
return IPCCheckWait(0);
}
bool IPCCheckWait(int time){
int result = false;
int emask = kolibri_event_get_mask();
kolibri_event_set_mask(KOLIBRI_EVENT_IPC_MASK);
result = kolibri_event_wait(time);
kolibri_event_set_mask(emask);
return result;
}
Message *IPCGetNextMessage(void){
return IPCWaitMessage(0);
}
Message *IPCWaitMessage(int time){
if (IPCCheckWait(time)){
Message *msg_ret, *msg = kolibri_IPC_get_next_message();
msg_ret = malloc(sizeof(Message)+msg->length);
if (!msg_ret) {
return NULL;
}
IPCLock();
memcpy(msg_ret, msg, sizeof(Message)+msg->length);
ipc_area->size -= sizeof(Message)+msg->length;
memcpy(msg, msg+sizeof(Message)+msg->length, ipc_area->size);
IPCUnlock();
return msg_ret;
} else {
return NULL;
}
}
/*
* Kolibri 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 IPCLock(void){
kolibri_IPC_lock();
}
void IPCUnlock(void){
kolibri_IPC_unlock();
}
// void kolibri_IPC_clear_buff(){
// kolibri_ipc_area->size = 8;
// kolibri_IPC_unlock();
// }

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LibIPC -- библиотека межпотокового взаимодействия
=================================================
Интерфейс
---------
**LibIPC** будет предоставлять следующие функции:
int **IPCInit**\(void);
Инициализация IPC. При этом должна быть инициализирована куча для динамического
выделения памяти под буфер. Возвращает 0 = **SUCCESS** в случае удачи, в противном
случае код ошибки:
- **NO_MEMORY** (=1) -- невозможно получить память
- **CANNOT_SET_MASK** (=2) -- невозможно установить маску событий
- *n* + 2 -- системная функция завершилась с ошибкой *n*
int **IPCSend**\(int *tid*, void *\*message*, int *length*);
Послать сообщение. Если произошла системная ошибка 2 или 3, будут произведены
дополнительные попытки (не больше какой-то константы). В случае успеха
возвращает 0, коды ошибок:
- **IPC_NO_AREA** (=1) -- поток не определил область IPC
- **IPC_BUFFER_LOCKED** (=2) -- были ошибки 2 и 3, при последней попытке -- ошибка 2 (поток заблокировал буфер)
- **IPC_OVERFLOW** (=3) -- то же, что и 2, только последняя ошибка 3 (переполнение буфера)
- **IPC_NO_TID** (=4) -- единственная или последняя ошибка была 4, т.е. отсутствие потока с заданным TID
bool **IPCCheck**\(void);
Проверить, не пришло ли новое сообщение.
Message \*\ **IPCGetNextMessage**\(void);
Получить следующее сообщение. То же самое, что **IPCWaitMessage**\(0).
Message \*\ **IPCWaitMessage**\(int *time*);
Ждать сообщения не больше time миллисекунд (-1 = ждать вечно). При этом
сообщение удаляется из буфера и копируется в динамически выделяемую область
памяти. Если сообщения нет (или произошла ошибка выделения памяти),
возвращается **NULL**, если есть -- адрес на структуру Message::
typedef struct Message {
int tid;
int length;
//void msg;
} Message;
void **IPCLock**\(void);
Функция ручной блокировки буфера (в большинстве случаев не нужна, т.к.
библиотека сама блокирует буфер в нужных случаях).
void **IPCUnclock**\(void);
Функция, обратная **IPCLock**\();
Форма реализации
----------------
- Язык: **C**
- Формат: .o -- поддержка C, asm и т.д. Динамичность библиотеки в данном случае бессмысленна.

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ROOT=..
include ../config.mk
all: ipc.o

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/*******************************************************************************
* Copyright (C) 2009 Vasiliy Kosenko *
* *
* 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, write to the Free Software *
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. *
*******************************************************************************/
/*******************************************************************************
* This is my heap realization adapted for KolibriOS *
*******************************************************************************/
#include "kolibri.h"
#include "heap.h"
#include "defs.h"
void *halMemAlloc(Heap *wheap, unsigned long nbytes){
MemBlock *heap = wheap->free, *best = 0;
int good_best = 0; // Such memory block, that no memory will left
unsigned long nblocks = (nbytes-1)/sizeof(MemBlock)+1;
if (heap) {
while (heap) {
if (heap->nblocks > nblocks && (!best || heap->nblocks < best->nblocks) && (!good_best || heap->nblocks > nblocks+1)) {
best = heap;
if (heap->nblocks > nblocks+1) {
good_best = 1;
}
} else if (heap->nblocks == nblocks) {
best = heap;
good_best = 0;
break;
}
heap = heap->next;
}
}
if (best && good_best) {
heap = best+best->nblocks-nblocks;
heap->nblocks = nblocks;
wheap->allocated = halMemBlockAdd(wheap->allocated, heap, false);
best->nblocks -= nblocks+1;
best = heap;
} else if (best) {
wheap->free = halMemBlockRemove(best);
wheap->allocated = halMemBlockAdd(wheap->allocated, best, false);
} else {
// We need some memory for heap
int npages = ((nblocks+1)-1)/(PAGE_SIZE/sizeof(MemBlock))+1;
void *pages;
// debug(DEBUG_MESSAGE, 4, "no enough memory in heap, needed %d page%s", npages, npages == 1 ? "" : "s");
// Try to get npages at once
pages = wheap->alloc(wheap, npages*PAGE_SIZE);
if (pages) {
// debug(DEBUG_MESSAGE, 5, "physic pages allocated");
best = (MemBlock *) pages;
if (npages*PAGE_SIZE <= (nblocks+2)*sizeof(MemBlock)) {
best->nblocks = npages*PAGE_SIZE/sizeof(MemBlock)-1;
} else {
best->nblocks = nblocks;
heap = best+best->nblocks+1;
heap->nblocks = npages*PAGE_SIZE/sizeof(MemBlock)-(nblocks+1)-1;
wheap->free = halMemBlockAdd(wheap->free, heap, true);
}
wheap->allocated = halMemBlockAdd(wheap->allocated, best, false);
} else {
// debug(DEBUG_WARNING, 3, "no available physic pages");
return NULL;
}
}
// debug(DEBUG_MESSAGE, 5, "memory allocated");
return (void *) (best + 1);
}
void halMemFree(Heap *wheap, void *addr){
MemBlock *heap = wheap->allocated;
MemBlock *block = (MemBlock *)addr - 1;
while (heap->next && block < heap) {
heap = heap->next;
}
if (block != heap) {
return;
}
wheap->allocated = halMemBlockRemove(block);
wheap->free = halMemBlockAdd(wheap->free, block, true);
}
void halMemHeapInit(Heap *wheap, void *(*alloc)(Heap *heap, int nbytes), void *st_addr, int size){
MemBlock *st_unit = (MemBlock *)st_addr;
if (st_unit) {
st_unit->nblocks = size/sizeof(MemBlock)-1;
wheap->free = halMemBlockAdd(NULL, st_unit, true);
} else {
wheap->free = NULL;
}
wheap->allocated = NULL;
wheap->alloc = alloc;
}
/////////////////////////////////////////////////////////////////////////////////
// inside functions //
/////////////////////////////////////////////////////////////////////////////////
MemBlock *halMemBlockAdd(MemBlock *heap, MemBlock *unit, bool optimize){
MemBlock *heap_st = heap;
// int optimize = (heap_st != wheap->allocated);
if (!heap || (heap > unit)) {
heap_st = unit;
if (heap) {
heap->previos = unit;
}
unit->next = heap;
unit->previos = NULL;
} else {
if (heap->next) {
while (heap->next && (heap < unit)) {
heap = heap->next;
}
heap = heap->previos;
}
unit->next = heap->next;
unit->previos = heap;
if (heap->next) {
heap->next->previos = unit;
}
heap->next = unit;
}
if (optimize) {
if (unit->previos && unit->previos+unit->previos->nblocks == unit) {
halMemBlockRemove(unit);
unit->previos->nblocks += unit->nblocks+1;
}
if (unit->next && unit+unit->nblocks == unit->next) {
unit->nblocks += unit->next->nblocks+1;
halMemBlockRemove(unit->next);
}
}
return heap_st;
}
MemBlock *halMemBlockRemove(MemBlock *unit) {
if (unit->next) {
unit->next->previos = unit->previos;
}
if (unit->previos) {
unit->previos->next = unit->next;
while (unit->previos) {
unit = unit->previos;
}
return unit;
} else {
return unit->next;
}
}

5
programs/develop/libraries/framework/trunk/stdlib/makefile Normal file
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ROOT=..
include ../config.mk
all: heap.o malloc.o stdlib.o

43
programs/develop/libraries/framework/trunk/stdlib/malloc.c Normal file
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/***************************************************************************************************
* 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/>. *
***************************************************************************************************/
/***************************************************************************************************
* malloc.c - realisation of malloc & free functions based on heap.c *
***************************************************************************************************/
#include "malloc.h"
#include "kolibri.h"
#include "heap.h"
Heap malloc_heap;
void malloc_init(){
// Init system heap
kolibri_heap_init();
// Init main heap for malloc
halMemHeapInit(&malloc_heap, &heap_alloc, NULL, 0);
}
void *heap_alloc(Heap *wheap, int nbytes){
return kolibri_malloc(nbytes);
}
void *malloc(int nbytes){
return halMemAlloc(&malloc_heap, nbytes);
}
void free(void *addr){
halMemFree(&malloc_heap, addr);
}

70
programs/develop/libraries/framework/trunk/stdlib/stdlib.c Normal file
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@@ -0,0 +1,70 @@
/***************************************************************************************************
* Copyright (C) Vasiliy Kosenko (vkos), 2009 *
* Kobra 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. *
* *
* Kobra 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 Kobra. *
* If not, see <http://www.gnu.org/licenses/>. *
***************************************************************************************************/
/***************************************************************************************************
* Some stdlib functions *
***************************************************************************************************/
#include "stdlib.h"
void *memcpy(void *dst, void *src, int length){
void *value;
if (length & 3) { //length not aligned in 4 bytes use rep movsb
__asm__ __volatile__(
"movl %%edi,%%eax\n\t"
"cld\n\t"
"rep\n\t"
"movsb"
:"=D"(value)
:"c"(length),"S"(src),"D"(dst)
:"eax");
} else { //length aligned in 4 bytes use rep movsd
length=length >> 2;//length=length/4
__asm__ __volatile__(
"movl %%edi,%%eax\n\t"
"cld\n\t"
"rep\n\t"
"movsd"
:"=D"(value)
:"c"(length),"S"(src),"D"(dst)
:"eax");
}
return(value);
}
char strcmp(char *s1, char *s2){
while (*s1) {
if (*s1++ != *s2++) {
return *--s1-*--s2;
}
}
return 0;
}
int strlen(char *s){
int i;
while (*s++) {
++i;
}
return i;
}
char *strcpy(char *dest, char *src){
while (*src) {
*dest++ = *src++;
}
*dest = '\0';
}