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$Revision: 520 $
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$Revision: 536 $
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;                                                              ;;
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;;                                                              ;;
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;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;;
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;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;;
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;; Distributed under terms of the GNU General Public License    ;;
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;; Distributed under terms of the GNU General Public License    ;;
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;;                                                              ;;
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;;                                                              ;;
Line 611... Line 611...
611 
           jz .exit
 611 
           jz .exit
Line 612... Line 612...
612 
 
 612 
 
613 
           mov eax, [pdir]
 613 
           mov eax, [pdir]
Line 614... Line 614...
614 
           and eax, 0xFFFFF000
 614 
           and eax, 0xFFFFF000
615 
 
 615 
 
616 
           stdcall map_page,[ipc_pdir],eax,dword PG_UW
 616 
           stdcall map_page,[ipc_pdir],eax,PG_UW
617 
           mov ebx, [ofs]
 617 
           mov ebx, [ofs]
618 
           shr ebx, 22
 618 
           shr ebx, 22
619 
           mov esi, [ipc_pdir]
 619 
           mov esi, [ipc_pdir]
620 
           mov edi, [ipc_ptab]
 620 
           mov edi, [ipc_ptab]
621 
           mov eax, [esi+ebx*4]
 - 
 
622 
           and eax, 0xFFFFF000
 621 
           mov eax, [esi+ebx*4]
623 
           test eax, eax
 622 
           and eax, 0xFFFFF000
624 
           jz .exit
 623 
           jz .exit
625 
           stdcall map_page,edi,eax,dword PG_UW
 624 
           stdcall map_page,edi,eax,PG_UW
626 
;           inc ebx
 625 
;           inc ebx
627 
;           add edi, 0x1000
 626 
;           add edi, 0x1000
628 
;           mov eax, [esi+ebx*4]
 627 
;           mov eax, [esi+ebx*4]
Line 643... Line 642...
643 
           and edx, 0x3FF
 642 
           and edx, 0x3FF
644 
           mov esi, [ipc_ptab]
 643 
           mov esi, [ipc_ptab]
Line 645... Line 644...
645 
 
 644 
 
646 
.map:      mov eax, [esi+edx*4]
 645 
.map:      mov eax, [esi+edx*4]
647 
           and eax, 0xFFFFF000
 - 
 
648 
           test eax, eax
 646 
           and eax, 0xFFFFF000
649 
           jz .exit
 647 
           jz  .exit
- 
 
 648 
           stdcall map_page,edi,eax,PG_UW
- 
 
 649 
           dec ecx
650 
           stdcall map_page,edi,eax,dword PG_UW
 650 
           jz  .exit
651 
           add edi, 0x1000
 651 
           add edi, 0x1000
652 
           inc edx
 652 
           inc edx
653 
           dec ecx
 653 
           cmp edx, 0x400
- 
 
 654 
           jnz .map
- 
 
 655 
           inc ebx
- 
 
 656 
           mov eax, [ipc_pdir]
- 
 
 657 
           mov eax, [eax+ebx*4]
- 
 
 658 
           and eax, 0xFFFFF000
- 
 
 659 
           jz  .exit
- 
 
 660 
           stdcall map_page,esi,eax,PG_UW
- 
 
 661 
           xor edx, edx
Line 654... Line 662...
654 
           jnz .map
 662 
           jmp .map
655 
 
 663 
 
656 
.exit:
 664 
.exit:
Line 747... Line 755...
747 
           and ecx, not 4095
 755 
           and ecx, not 4095
Line 748... Line 756...
748 
 
 756 
 
749 
.touch:    mov eax, [ebx]
 757 
.touch:    mov eax, [ebx]
750 
           add ebx, 0x1000
 758 
           add ebx, 0x1000
751 
           cmp ebx, ecx
 759 
           cmp ebx, ecx
Line 752... Line 760...
752 
           jna .touch
 760 
           jb  .touch
753 
 
 761 
 
754 
           popf
 762 
           popf
755 
           xor eax, eax
 763 
           xor eax, eax
Line 759... Line 767...
759 
proc sys_ipc_send stdcall, PID:dword, msg_addr:dword, msg_size:dword
 767 
proc sys_ipc_send stdcall, PID:dword, msg_addr:dword, msg_size:dword
760 
           locals
 768 
           locals
761 
             dst_slot   dd ?
 769 
             dst_slot   dd ?
762 
             dst_offset dd ?
 770 
             dst_offset dd ?
763 
             buf_size   dd ?
 771 
             buf_size   dd ?
- 
 
 772 
             used_buf   dd ?
764 
           endl
 773 
           endl
Line 765... Line 774...
765 
 
 774 
 
766 
           pushf
 775 
           pushf
Line 783... Line 792...
783 
           mov [dst_offset], ebx
 792 
           mov [dst_offset], ebx
Line 784... Line 793...
784 
 
 793 
 
785 
           mov esi, [eax+SLOT_BASE+0xa4]
 794 
           mov esi, [eax+SLOT_BASE+0xa4]
Line -... Line 795...
- 
 
 795 
           mov [buf_size], esi
- 
 
 796 
 
- 
 
 797 
           mov ecx, [ipc_tmp]
- 
 
 798 
           cmp esi, 0x40000-0x1000 ; size of [ipc_tmp] minus one page
- 
 
 799 
           jbe @f
- 
 
 800 
           push eax esi edi
- 
 
 801 
           add esi,0x1000
- 
 
 802 
           stdcall alloc_kernel_space,esi
- 
 
 803 
           mov ecx, eax
- 
 
 804 
           pop edi esi eax
786 
           mov [buf_size], esi
 805 
@@:
787 
 
 806 
           mov [used_buf], ecx
Line 788... Line 807...
788 
           stdcall map_mem, [ipc_tmp], [SLOT_BASE+eax+0xB8],\
 807 
           stdcall map_mem, ecx, [SLOT_BASE+eax+0xB8],\
789 
                             edi, esi
 808 
                             edi, esi
790 
 
 809 
 
791 
           mov edi, [dst_offset]
 810 
           mov edi, [dst_offset]
Line 792... Line 811...
792 
           add edi, [ipc_tmp]
 811 
           add edi, [used_buf]
793 
           cmp dword [edi], 0
 812 
           cmp dword [edi], 0
Line 801... Line 820...
801 
           ja .buffer_overflow         ;esi<0 - not enough memory in buffer
 820 
           ja .buffer_overflow         ;esi<0 - not enough memory in buffer
Line 802... Line 821...
802 
 
 821 
 
803 
           mov dword [edi+4], ebx
 822 
           mov dword [edi+4], ebx
804 
           mov eax,[TASK_BASE]
 823 
           mov eax,[TASK_BASE]
805 
           mov eax, [eax+0x04]         ;eax - our PID
 - 
 
806 
           mov edi, [dst_offset]
 - 
 
807 
           add edi, [ipc_tmp]
 824 
           mov eax, [eax+0x04]         ;eax - our PID
808 
           add edi, edx
 825 
           add edi, edx
809 
           mov [edi], eax
 826 
           mov [edi], eax
Line 810... Line 827...
810 
           mov ecx, [msg_size]
 827 
           mov ecx, [msg_size]
Line 843... Line 860...
843 
           cmp  dword [check_idle_semaphore],20
 860 
           cmp  dword [check_idle_semaphore],20
844 
           jge  .ipc_no_cis
 861 
           jge  .ipc_no_cis
Line 845... Line 862...
845 
 
 862 
 
846 
           mov  dword [check_idle_semaphore],5
 863 
           mov  dword [check_idle_semaphore],5
847 
.ipc_no_cis:
 864 
.ipc_no_cis:
848 
           popf
 - 
 
849 
           xor eax, eax
 865 
           push 0
850 
           ret
 866 
           jmp .ret
851 
.no_pid:
 867 
.no_pid:
852 
           popf
 868 
           popf
853 
           mov  eax, 4
 869 
           mov eax, 4
854 
           ret
 870 
           ret
855 
.no_ipc_area:
 871 
.no_ipc_area:
856 
           popf
 872 
           popf
857 
           xor eax, eax
 873 
           xor eax, eax
858 
           inc eax
 874 
           inc eax
859 
           ret
 875 
           ret
860 
.ipc_blocked:
 876 
.ipc_blocked:
861 
           popf
 - 
 
862 
           mov  eax, 2
 877 
           push 2
863 
           ret
 878 
           jmp .ret
- 
 
 879 
.buffer_overflow:
- 
 
 880 
           push 3
- 
 
 881 
.ret:
- 
 
 882 
           mov eax, [used_buf]
- 
 
 883 
           cmp eax, [ipc_tmp]
- 
 
 884 
           jz @f
- 
 
 885 
           stdcall free_kernel_space,eax
- 
 
 886 
@@:
864 
.buffer_overflow:
 887 
           pop eax
865 
           popf
 - 
 
866 
           mov  eax, 3
 888 
           popf
867 
           ret
 889 
           ret
Line 868... Line 890...
868 
endp
 890 
endp
869 
 
 891