＋设为首页 ＋添加到收藏夹
尽管Dev-C++可以编译C++程序，我编写的是完全C的程序。我想使用多线程。由于Dev使用的是MinGW编译器，类同Linux下的GCC。但是书上的Posix程序我照搬过来在Dev里面都不能编译。比如
#include "pthread.h"
int main()
{
pthread_t th; // 这个就出问题了，居然说找不到不能识别pthread_t
return 0;
}
总之我现在想做多线程程序，用C语言，环境是Dev-C++，该用什么方法？
MinGW属于Windows操作系统的GCC版本，这个版本不带有Posix Thread库，但是可以使用Windows本地的API
CreateThread等，相关信息察看MSDN即可。
在C语言中，最好使用_beginthreadex函数来创建线程，该函数的参数和CreateThread的参数相同，但是它比CreateThread做更多的事情，要关闭线程就用对应的函数：_endthreadex
在c中使用多线程真是难为了这门语言.呵呵。
用wingcc
你用什么操作系统，如果想写通用的，就用ace吧。
MSDN例子
#include <windows.h>
#include <process.h> /* _beginthread, _endthread */
#include <stddef.h>
#include <stdlib.h>
#include <conio.h>
void Bounce( void *ch );
void CheckKey( void *dummy );
/* GetRandom returns a random integer between min and max. */
#define GetRandom( min, max ) ((rand() % (int)(((max) + 1) - (min))) + (min))
BOOL repeat = TRUE; /* Global repeat flag and video variable */
HANDLE hStdOut; /* Handle for console window */
CONSOLE_SCREEN_BUFFER_INFO csbi; /* Console information structure */
void main()
{
CHAR ch = A;
hStdOut = GetStdHandle( STD_OUTPUT_HANDLE );
/* Get display screens text row and column information. */
GetConsoleScreenBufferInfo( hStdOut, &csbi );
/* Launch CheckKey thread to check for terminating keystroke. */
_beginthread(CheckKey, 0, NULL );
/* Loop until CheckKey terminates program. */
while( repeat )
{
/* On first loops, launch character threads. */
_beginthread( Bounce, 0, (void *) (ch++) );
/* Wait one second between loops. */
Sleep( 1000L );
}
}
/* CheckKey - Thread to wait for a keystroke, then clear repeat flag. */
void CheckKey( void *dummy )
{
_getch();
repeat = 0; /* _endthread implied */
}
/* Bounce - Thread to create and and control a colored letter that moves
* around on the screen.
*
* Params: ch - the letter to be moved
*/
void Bounce( void *ch )
{
/* Generate letter and color attribute from thread argument. */
char blankcell = 0x20;
char blockcell = (char) ch;
BOOL first = TRUE;
COORD oldcoord, newcoord;
DWORD result;
/* Seed random number generator and get initial location. */
srand( _threadid );
newcoord.X = GetRandom( 0, csbi.dwSize.X - 1 );
newcoord.Y = GetRandom( 0, csbi.dwSize.Y - 1 );
while( repeat )
{
/* Pause between loops. */
Sleep( 100L );
/* Blank out our old position on the screen, and draw new letter. */
if( first )
first = FALSE;
else
WriteConsoleOutputCharacter( hStdOut, &blankcell, 1, oldcoord, &result );
WriteConsoleOutputCharacter( hStdOut, &blockcell, 1, newcoord, &result );
/* Increment the coordinate for next placement of the block. */
oldcoord.X = newcoord.X;
oldcoord.Y = newcoord.Y;
newcoord.X += GetRandom( -1, 1 );
newcoord.Y += GetRandom( -1, 1 );
/* Correct placement (and beep) if about to go off the screen. */
if( newcoord.X < 0 )
newcoord.X = 1;
else if( newcoord.X == csbi.dwSize.X )
newcoord.X = csbi.dwSize.X - 2;
else if( newcoord.Y < 0 )
newcoord.Y = 1;
else if( newcoord.Y == csbi.dwSize.Y )
newcoord.Y = csbi.dwSize.Y - 2;
/* If not at a screen border, continue, otherwise beep. */
else
continue;
Beep( ((char) ch - A) * 100, 175 );
}
/* _endthread given to terminate */
_endthread();
}
