| /kernel/trunk/core/clipboard.inc |
|---|
| 0,0 → 1,148 |
| ;------------------------------------------------------------------------------ |
| align 4 |
| sys_clipboard: |
| xor eax, eax |
| dec eax |
| ; check availability of main list |
| cmp [clipboard_main_list], eax |
| je .exit_1 ; main list area not found |
| test ebx, ebx ; 0 - Get the number of slots in the clipboard |
| jnz .1 |
| ; get the number of slots |
| mov eax, [clipboard_slots] |
| jmp .exit_1 |
| ;------------------------------------------------------------------------------ |
| align 4 |
| .1: |
| dec ebx ; 1 - Read the data from the clipboard |
| jnz .2 |
| ; verify the existence of slot |
| cmp ecx, [clipboard_slots] |
| jae .exit_2 |
| ; get a pointer to the data of slot |
| shl ecx, 2 |
| add ecx, [clipboard_main_list] |
| mov esi, [ecx] |
| mov ecx, [esi] |
| ; allocate memory for application for copy the data of slots |
| push ecx |
| stdcall user_alloc, ecx |
| pop ecx |
| ; copying data of slots |
| mov edi, eax |
| cld |
| rep movsb |
| jmp .exit_1 |
| ;------------------------------------------------------------------------------ |
| align 4 |
| .2: |
| dec ebx ; 2 - Write the data to the clipboard |
| jnz .3 |
| ; check the lock |
| mov ebx, clipboard_write_lock |
| xor eax, eax |
| cmp [ebx], eax |
| jne .exit_2 |
| ; lock last slot |
| inc eax |
| mov [ebx], eax |
| ; check the overflow pointer of slots |
| cmp [clipboard_slots], 1024 |
| jae .exit_3 |
| ; get memory for new slot |
| push ebx ecx edx |
| stdcall kernel_alloc, ecx |
| pop edx ecx ebx |
| test eax, eax |
| jz .exit_3 |
| ; create a new slot |
| mov edi, eax |
| mov eax, [clipboard_slots] |
| shl eax, 2 |
| add eax, [clipboard_main_list] |
| mov [eax], edi |
| ; copy the data into the slot |
| mov esi, edx |
| mov eax, ecx |
| cld |
| stosd ; store size of slot |
| sub ecx, 4 |
| add esi, 4 |
| rep movsb ; store slot data |
| ; increase the counter of slots |
| inc [clipboard_slots] |
| ; unlock last slot |
| xor eax, eax |
| mov [ebx], eax |
| jmp .exit_1 |
| ;------------------------------------------------------------------------------ |
| align 4 |
| .3: |
| dec ebx ; 3 - Delete the last slot in the clipboard |
| jnz .4 |
| ; check the availability of slots |
| mov eax, [clipboard_slots] |
| test eax, eax |
| jz .exit_2 |
| ; check the lock |
| mov ebx, clipboard_write_lock |
| xor eax, eax |
| cmp [ebx], eax |
| jne .exit_2 |
| ; lock last slot |
| inc eax |
| mov [ebx], eax |
| ; decrease the counter of slots |
| mov eax, clipboard_slots |
| dec dword [eax] |
| ; free of kernel memory allocated for the slot |
| mov eax, [eax] |
| shl eax, 2 |
| add eax, [clipboard_main_list] |
| mov eax, [eax] |
| push ebx |
| stdcall kernel_free, eax |
| pop ebx |
| ; unlock last slot |
| xor eax, eax |
| mov [ebx], eax |
| jmp .exit_1 |
| ;------------------------------------------------------------------------------ |
| align 4 |
| .4: |
| dec ebx ; 4 - Emergency discharge of clipboard |
| jnz .exit |
| ; check the lock |
| mov ebx, clipboard_write_lock |
| xor eax, eax |
| cmp [ebx], eax |
| je .exit_2 |
| ; there should be a procedure for checking the integrity of the slots |
| ; and I will do so in the future |
| ; unlock last slot |
| mov [ebx], eax |
| jmp .exit |
| ;------------------------------------------------------------------------------ |
| align 4 |
| .exit_3: |
| ; unlock last slot |
| xor eax, eax |
| mov [ebx], eax |
| .exit_2: |
| xor eax, eax |
| inc eax ; error |
| .exit_1: |
| mov [esp + 32], eax |
| .exit: |
| ret |
| ;------------------------------------------------------------------------------ |
| uglobal |
| align 4 |
| clipboard_slots dd ? |
| clipboard_main_list dd ? |
| clipboard_write_lock dd ? |
| endg |
| ;------------------------------------------------------------------------------ |
| Property changes: |
| Added: svn:eol-style |
| +native |
| \ No newline at end of property |
| /kernel/trunk/core/syscall.inc |
|---|
| 184,7 → 184,7 |
| dd syscall_threads ; 51-Threads |
| dd undefined_syscall ; 52- deprecated Stack driver status |
| dd undefined_syscall ; 53- deprecated Socket interface |
| dd undefined_syscall ; 54-reserved |
| dd sys_clipboard ; 54-Custom clipboard |
| dd sound_interface ; 55-Sound interface |
| dd undefined_syscall ; 56-reserved |
| dd sys_pcibios ; 57-PCI BIOS32 |
| /kernel/trunk/docs/sysfuncr.txt |
|---|
| 2428,6 → 2428,70 |
| * иначе eax = TID - идентификатор потока |
| ====================================================================== |
| ====================== Функция 54, подфункция 0 ====================== |
| ============== Узнать количество слотов в буфере обмена. ============= |
| ====================================================================== |
| Параметры: |
| * eax = 54 - номер функции |
| * ebx = 0 - номер подфункции |
| Возвращаемое значение: |
| * eax = количество слотов в буфере |
| * eax = -1 - отсутствует область главного списка |
| ====================================================================== |
| ====================== Функция 54, подфункция 1 ====================== |
| ================== Считать данные из буфера обмена. ================== |
| ====================================================================== |
| Параметры: |
| * eax = 54 - номер функции |
| * ebx = 1 - номер подфункции |
| * eсx = номер слота |
| Возвращаемое значение: |
| * eax = если успешно - указатель на область памяти с данными |
| * eax = 1 - ошибка |
| * eax = -1 - отсутствует область главного списка |
| ====================================================================== |
| ====================== Функция 54, подфункция 2 ====================== |
| ================== Записать данные в буфер обмена. =================== |
| ====================================================================== |
| Параметры: |
| * eax = 54 - номер функции |
| * ebx = 2 - номер подфункции |
| * eсx = количество копируемых байт |
| * edx = указатель на буфер под копируемые данные |
| Возвращаемое значение: |
| * eax = 0 - успешно |
| * eax = 1 - ошибка |
| * eax = -1 - отсутствует область главного списка |
| ====================================================================== |
| ====================== Функция 54, подфункция 3 ====================== |
| ========= Удалить последний слот с данными в буфере обмена =========== |
| ====================================================================== |
| Параметры: |
| * eax = 54 - номер функции |
| * ebx = 3 - номер подфункции |
| Возвращаемое значение: |
| * eax = 0 - успешно |
| * eax = 1 - ошибка |
| * eax = -1 - отсутствует область главного списка |
| ====================================================================== |
| ====================== Функция 54, подфункция 4 ====================== |
| =================== Аварийный сброс блокировки буфера ================ |
| ====================================================================== |
| Параметры: |
| * eax = 54 - номер функции |
| * ebx = 4 - номер подфункции |
| Возвращаемое значение: |
| * eax = 0 - успешно |
| * eax = -1 - отсутствует область главного списка или нет блокировки |
| Замечания: |
| * Используется в исключительных случаях, когда зависшее или убитое |
| приложение заблокировало работу с буфером обмена. |
| ====================================================================== |
| ====================== Функция 55, подфункция 55 ===================== |
| ========== Начать проигрывать данные на встроенном спикере. ========== |
| ====================================================================== |
| /kernel/trunk/docs/sysfuncs.txt |
|---|
| 2411,6 → 2411,70 |
| </UL> |
| ====================================================================== |
| ==================== Function 54, subfunction 0 ====================== |
| ============== Get the number of slots in the clipboard. ============= |
| ====================================================================== |
| Parameters: |
| * eax = 54 - function number |
| * ebx = 0 - subfunction number |
| Returned value: |
| * eax = slots in the clipboard |
| * eax = -1 - main list area not found |
| ====================================================================== |
| ==================== Function 54, subfunction 1 ====================== |
| ================= Read the data from the clipboard. ================== |
| ====================================================================== |
| Parameters: |
| * eax = 54 - function number |
| * ebx = 1 - subfunction number |
| * eсx = slot number |
| Returned value: |
| * eax = if successful - pointer to a memory with data |
| * eax = 1 - error |
| * eax = -1 - main list area not found |
| ====================================================================== |
| ==================== Function 54, subfunction 2 ====================== |
| ================= Write the data to the clipboard. =================== |
| ====================================================================== |
| Parameters: |
| * eax = 54 - function number |
| * ebx = 2 - subfunction number |
| * eсx = the number of bytes to be copied |
| * edx = a pointer to a buffer for data to be copied |
| Returned value: |
| * eax = 0 - success |
| * eax = 1 - error |
| * eax = -1 - main list area not found |
| ====================================================================== |
| ===================== Function 54, subfunction 3 ===================== |
| ================ Delete the last slot in the clipboard =============== |
| ====================================================================== |
| Parameters: |
| * eax = 54 - function number |
| * ebx = 3 - subfunction number |
| Returned value: |
| * eax = 0 - success |
| * eax = 1 - error |
| * eax = -1 - main list area not found |
| ====================================================================== |
| ===================== Function 54, subfunction 4 ===================== |
| ===================== Alarm reset the lock buffer ==================== |
| ====================================================================== |
| Parameters: |
| * eax = 54 - function number |
| * ebx = 4 - subfunction number |
| Returned value: |
| * eax = 0 - success |
| * eax = -1 - main list area not found or no blocking |
| Remarks: |
| * Used in exceptional cases, where no responsible or killed |
| application blocked the clipboard operations. |
| ====================================================================== |
| Function 55, subfunction 55 - begin to play data on built-in speaker. |
| ====================================================================== |
| Parameters: |
| /kernel/trunk/kernel.asm |
|---|
| 698,6 → 698,19 |
| mov [mem_BACKGROUND], 4 |
| mov [img_background], static_background_data |
| ; set clipboard |
| xor eax, eax |
| mov [clipboard_slots], eax |
| mov [clipboard_write_lock], eax |
| stdcall kernel_alloc, 4096 |
| test eax, eax |
| jnz @f |
| dec eax |
| @@: |
| mov [clipboard_main_list], eax |
| ; SET UP OS TASK |
| mov esi, boot_setostask |
| /kernel/trunk/kernel32.inc |
|---|
| 171,6 → 171,7 |
| include "core/irq.inc" ; irq handling functions |
| include "core/apic.inc" ; Interrupt Controller functions |
| include "core/timers.inc" |
| include "core/clipboard.inc" ; custom clipboard |
| ; GUI stuff |
| include "gui/window.inc" |