mirror of
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d1a79ea2eb
Convert all msvcrt locks over to use _lock and _unlock. Explicitly make msvcrt compile with multithreaded option. Fix flag handling in _sopen. Add W->A call for new _swopen.
513 lines
14 KiB
C
513 lines
14 KiB
C
/*
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* msvcrt.dll console functions
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*
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* Copyright 2000 Jon Griffiths
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*
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* Note: init and free don't need MT locking since they are called at DLL
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* (de)attachment time, which is syncronised for us
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*/
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#include "msvcrt.h"
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#include "wincon.h"
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#include "msvcrt/conio.h"
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#include "msvcrt/malloc.h"
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#include "msvcrt/stdio.h"
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#include "mtdll.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
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/* MT */
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#define LOCK_CONSOLE _mlock(_CONIO_LOCK)
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#define UNLOCK_CONSOLE _munlock(_CONIO_LOCK)
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static HANDLE MSVCRT_console_in = INVALID_HANDLE_VALUE;
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static HANDLE MSVCRT_console_out= INVALID_HANDLE_VALUE;
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static int __MSVCRT_console_buffer = MSVCRT_EOF;
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/* INTERNAL: Initialise console handles */
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void msvcrt_init_console(void)
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{
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TRACE(":Opening console handles\n");
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MSVCRT_console_in = GetStdHandle(STD_INPUT_HANDLE);
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/* FIXME: Should be initialised with:
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* CreateFileA("CONIN$", GENERIC_READ, FILE_SHARE_READ,
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* NULL, OPEN_EXISTING, 0, (HANDLE)NULL);
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*/
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MSVCRT_console_out= CreateFileA("CONOUT$", GENERIC_WRITE, FILE_SHARE_WRITE,
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NULL, OPEN_EXISTING, 0, (HANDLE)NULL);
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if ((MSVCRT_console_in == INVALID_HANDLE_VALUE) ||
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(MSVCRT_console_out== INVALID_HANDLE_VALUE))
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WARN(":Console handle Initialisation FAILED!\n");
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}
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/* INTERNAL: Free console handles */
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void msvcrt_free_console(void)
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{
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TRACE(":Closing console handles\n");
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CloseHandle(MSVCRT_console_in);
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CloseHandle(MSVCRT_console_out);
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}
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/*********************************************************************
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* _cputs (MSVCRT.@)
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*/
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int _cputs(const char* str)
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{
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DWORD count;
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int retval = MSVCRT_EOF;
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LOCK_CONSOLE;
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if (WriteConsoleA(MSVCRT_console_out, str, strlen(str), &count, NULL)
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&& count == 1)
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retval = 0;
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UNLOCK_CONSOLE;
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return retval;
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}
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/*********************************************************************
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* _getch (MSVCRT.@)
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*/
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int _getch(void)
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{
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int retval = MSVCRT_EOF;
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LOCK_CONSOLE;
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if (__MSVCRT_console_buffer != MSVCRT_EOF)
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{
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retval = __MSVCRT_console_buffer;
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__MSVCRT_console_buffer = MSVCRT_EOF;
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}
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else
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{
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INPUT_RECORD ir;
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DWORD count;
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DWORD mode = 0;
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GetConsoleMode(MSVCRT_console_in, &mode);
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if(mode)
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SetConsoleMode(MSVCRT_console_in, 0);
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do {
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if (ReadConsoleInputA(MSVCRT_console_in, &ir, 1, &count))
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{
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/* Only interested in ASCII chars */
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if (ir.EventType == KEY_EVENT &&
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ir.Event.KeyEvent.bKeyDown &&
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ir.Event.KeyEvent.uChar.AsciiChar)
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{
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retval = ir.Event.KeyEvent.uChar.AsciiChar;
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break;
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}
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}
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else
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break;
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} while(1);
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if (mode)
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SetConsoleMode(MSVCRT_console_in, mode);
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}
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UNLOCK_CONSOLE;
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return retval;
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}
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/*********************************************************************
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* _putch (MSVCRT.@)
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*/
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int _putch(int c)
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{
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int retval = MSVCRT_EOF;
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DWORD count;
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LOCK_CONSOLE;
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if (WriteConsoleA(MSVCRT_console_out, &c, 1, &count, NULL) && count == 1)
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retval = c;
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UNLOCK_CONSOLE;
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return retval;
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}
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/*********************************************************************
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* _getche (MSVCRT.@)
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*/
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int _getche(void)
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{
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int retval;
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LOCK_CONSOLE;
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retval = _getch();
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if (retval != MSVCRT_EOF)
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retval = _putch(retval);
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UNLOCK_CONSOLE;
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return retval;
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}
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/*********************************************************************
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* _cgets (MSVCRT.@)
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*/
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char* _cgets(char* str)
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{
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char *buf = str + 2;
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int c;
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str[1] = 0; /* Length */
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/* FIXME: No editing of string supported */
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LOCK_CONSOLE;
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do
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{
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if (str[1] >= str[0] || (str[1]++, c = _getche()) == MSVCRT_EOF || c == '\n')
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break;
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*buf++ = c & 0xff;
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} while (1);
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UNLOCK_CONSOLE;
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*buf = '\0';
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return str + 2;
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}
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/*********************************************************************
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* _ungetch (MSVCRT.@)
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*/
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int _ungetch(int c)
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{
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int retval = MSVCRT_EOF;
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LOCK_CONSOLE;
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if (c != MSVCRT_EOF && __MSVCRT_console_buffer == MSVCRT_EOF)
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retval = __MSVCRT_console_buffer = c;
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UNLOCK_CONSOLE;
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return retval;
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}
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/* helper function for _cscanf. Returns the value of character c in the
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* given base, or -1 if the given character is not a digit of the base.
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*/
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static int char2digit(char c, int base) {
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if ((c>='0') && (c<='9') && (c<='0'+base-1)) return (c-'0');
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if (base<=10) return -1;
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if ((c>='A') && (c<='Z') && (c<='A'+base-11)) return (c-'A'+10);
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if ((c>='a') && (c<='z') && (c<='a'+base-11)) return (c-'a'+10);
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return -1;
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}
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/*********************************************************************
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* _cscanf (MSVCRT.@)
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*/
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int _cscanf(const char* format, ...)
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{
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/* NOTE: If you extend this function, extend MSVCRT_fscanf in file.c too */
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int rd = 0;
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int nch;
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va_list ap;
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if (!*format) return 0;
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WARN("\"%s\": semi-stub\n", format);
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va_start(ap, format);
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LOCK_CONSOLE;
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nch = _getch();
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while (*format) {
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/* a whitespace character in the format string causes scanf to read,
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* but not store, all consecutive white-space characters in the input
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* up to the next non-white-space character. One white space character
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* in the input matches any number (including zero) and combination of
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* white-space characters in the input. */
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if (isspace(*format)) {
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/* skip whitespace */
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while ((nch!=MSVCRT_EOF) && isspace(nch))
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nch = _getch();
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}
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/* a format specification causes scanf to read and convert characters
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* in the input into values of a specified type. The value is assigned
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* to an argument in the argument list. Format specifications have
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* the form %[*][width][{h | l | I64 | L}]type */
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/* FIXME: unimplemented: h/l/I64/L modifiers and some type specs. */
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else if (*format == '%') {
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int st = 0; int suppress = 0; int width = 0;
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int base, number_signed;
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format++;
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/* look for leading asterisk, which means 'suppress assignment of
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* this field'. */
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if (*format=='*') {
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format++;
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suppress=1;
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}
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/* look for width specification */
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while (isdigit(*format)) {
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width*=10;
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width+=*format++ - '0';
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}
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if (width==0) width=-1; /* no width spec seen */
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switch(*format) {
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case '%': /* read a percent symbol */
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if (nch!='%') break;
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nch = _getch();
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break;
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case 'x':
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case 'X': /* hexadecimal integer. */
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base = 16; number_signed = 0;
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goto number;
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case 'o': /* octal integer */
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base = 8; number_signed = 0;
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goto number;
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case 'u': /* unsigned decimal integer */
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base = 10; number_signed = 0;
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goto number;
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case 'd': /* signed decimal integer */
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base = 10; number_signed = 1;
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goto number;
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case 'i': /* generic integer */
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base = 0; number_signed = 1;
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number: {
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/* read an integer */
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int*val = suppress ? NULL : va_arg(ap, int*);
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int cur = 0; int negative = 0; int seendigit=0;
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/* skip initial whitespace */
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while ((nch!=MSVCRT_EOF) && isspace(nch))
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nch = _getch();
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/* get sign */
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if (number_signed && (nch == '-' || nch == '+')) {
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negative = (nch=='-');
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nch = _getch();
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if (width>0) width--;
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}
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/* look for leading indication of base */
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if (width!=0 && nch == '0') {
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nch = _getch();
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if (width>0) width--;
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seendigit=1;
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if (width!=0 && (nch=='x' || nch=='X')) {
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if (base==0)
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base=16;
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if (base==16) {
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nch = _getch();
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if (width>0) width--;
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seendigit=0;
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}
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} else if (base==0)
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base = 8;
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}
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if (base==0)
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base=10;
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/* throw away leading zeros */
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while (width!=0 && nch=='0') {
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nch = _getch();
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if (width>0) width--;
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seendigit=1;
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}
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/* get first digit. Keep working copy negative, as the
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* range of negative numbers in two's complement notation
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* is one larger than the range of positive numbers. */
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if (width!=0 && char2digit(nch, base)!=-1) {
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cur = -char2digit(nch, base);
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nch = _getch();
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if (width>0) width--;
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seendigit=1;
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}
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/* read until no more digits */
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while (width!=0 && (nch!=MSVCRT_EOF) && isdigit(nch)) {
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cur = cur*base + char2digit(nch, base);
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nch = _getch();
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if (width>0) width--;
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seendigit=1;
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}
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/* negate parsed number if non-negative */
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if (!negative) cur=-cur;
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/* okay, done! */
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if (!seendigit) break; /* not a valid number */
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st = 1;
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if (!suppress) *val = cur;
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}
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break;
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case 'e':
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case 'E':
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case 'f':
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case 'g':
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case 'G': { /* read a float */
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float*val = suppress ? NULL : va_arg(ap, float*);
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float cur = 0;
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int negative = 0;
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/* skip initial whitespace */
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while ((nch!=MSVCRT_EOF) && isspace(nch))
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nch = _getch();
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/* get sign. */
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if (nch == '-' || nch == '+') {
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negative = (nch=='-');
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if (width>0) width--;
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if (width==0) break;
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nch = _getch();
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}
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/* get first digit. */
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if (!isdigit(nch)) break;
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cur = (nch - '0') * (negative ? -1 : 1);
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nch = _getch();
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if (width>0) width--;
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/* read until no more digits */
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while (width!=0 && (nch!=MSVCRT_EOF) && isdigit(nch)) {
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cur = cur*10 + (nch - '0');
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nch = _getch();
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if (width>0) width--;
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}
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/* handle decimals */
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if (width!=0 && nch == '.') {
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float dec = 1;
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nch = _getch();
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if (width>0) width--;
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while (width!=0 && (nch!=MSVCRT_EOF) && isdigit(nch)) {
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dec /= 10;
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cur += dec * (nch - '0');
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nch = _getch();
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if (width>0) width--;
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}
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}
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/* handle exponent */
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if (width!=0 && (nch == 'e' || nch == 'E')) {
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int exponent = 0, negexp = 0;
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float expcnt;
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nch = _getch();
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if (width>0) width--;
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/* possible sign on the exponent */
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if (width!=0 && (nch=='+' || nch=='-')) {
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negexp = (nch=='-');
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nch = _getch();
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if (width>0) width--;
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}
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/* exponent digits */
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while (width!=0 && (nch!=MSVCRT_EOF) && isdigit(nch)) {
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exponent *= 10;
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exponent += (nch - '0');
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nch = _getch();
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if (width>0) width--;
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}
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/* update 'cur' with this exponent. */
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expcnt = negexp ? .1 : 10;
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while (exponent!=0) {
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if (exponent&1)
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cur*=expcnt;
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exponent/=2;
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expcnt=expcnt*expcnt;
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}
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}
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st = 1;
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if (!suppress) *val = cur;
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}
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break;
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case 's': { /* read a word */
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char*str = suppress ? NULL : va_arg(ap, char*);
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char*sptr = str;
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/* skip initial whitespace */
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while ((nch!=MSVCRT_EOF) && isspace(nch))
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nch = _getch();
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/* read until whitespace */
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while (width!=0 && (nch!=MSVCRT_EOF) && !isspace(nch)) {
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if (!suppress) *sptr++ = nch;
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st++;
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nch = _getch();
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if (width>0) width--;
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}
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/* terminate */
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if (!suppress) *sptr = 0;
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TRACE("read word: %s\n", str);
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}
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break;
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default: FIXME("unhandled: %%%c\n", *format);
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/* From spec: "if a percent sign is followed by a character
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* that has no meaning as a format-control character, that
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* character and the following characters are treated as
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* an ordinary sequence of characters, that is, a sequence
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* of characters that must match the input. For example,
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* to specify that a percent-sign character is to be input,
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* use %%."
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* LEAVING AS-IS because we catch bugs better that way. */
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}
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if (st && !suppress) rd++;
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else break;
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}
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/* a non-white-space character causes scanf to read, but not store,
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* a matching non-white-space character. */
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else {
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/* check for character match */
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if (nch == *format)
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nch = _getch();
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else break;
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}
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format++;
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}
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if (nch != MSVCRT_EOF)
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_ungetch(nch);
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UNLOCK_CONSOLE;
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va_end(ap);
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TRACE("returning %d\n", rd);
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return rd;
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}
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/*********************************************************************
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* _kbhit (MSVCRT.@)
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*/
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int _kbhit(void)
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{
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int retval = 0;
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LOCK_CONSOLE;
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if (__MSVCRT_console_buffer != MSVCRT_EOF)
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retval = 1;
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else
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{
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/* FIXME: There has to be a faster way than this in Win32.. */
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INPUT_RECORD *ir = NULL;
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DWORD count = 0, i;
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GetNumberOfConsoleInputEvents(MSVCRT_console_in, &count);
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if (count && (ir = MSVCRT_malloc(count * sizeof(INPUT_RECORD))) &&
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PeekConsoleInputA(MSVCRT_console_in, ir, count, &count))
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for(i = 0; i < count - 1; i++)
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{
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if (ir[i].EventType == KEY_EVENT &&
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ir[i].Event.KeyEvent.bKeyDown &&
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ir[i].Event.KeyEvent.uChar.AsciiChar)
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{
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retval = 1;
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break;
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}
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}
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if (ir)
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MSVCRT_free(ir);
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}
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UNLOCK_CONSOLE;
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return retval;
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}
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/*********************************************************************
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* _cprintf (MSVCRT.@)
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*/
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int _cprintf(const char* format, ...)
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{
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char buf[2048], *mem = buf;
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int written, resize = sizeof(buf), retval;
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va_list valist;
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va_start( valist, format );
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/* There are two conventions for snprintf failing:
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* Return -1 if we truncated, or
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* Return the number of bytes that would have been written
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* The code below handles both cases
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*/
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while ((written = _snprintf( mem, resize, format, valist )) == -1 ||
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written > resize)
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{
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resize = (written == -1 ? resize * 2 : written + 1);
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if (mem != buf)
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MSVCRT_free (mem);
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if (!(mem = (char *)MSVCRT_malloc(resize)))
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return MSVCRT_EOF;
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va_start( valist, format );
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}
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va_end(valist);
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LOCK_CONSOLE;
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retval = _cputs( mem );
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UNLOCK_CONSOLE;
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if (mem != buf)
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MSVCRT_free (mem);
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return retval;
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}
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