linux c thread

点击 1991    创建时间 2011-09-02 12:47:15

 #include <pthread.h> 
 #include <stdio.h> 

 struct ThreadParam{ int name; }; 

 void print_thread(struct ThreadParam *param ) 
 { 
   int i; 
   for(i=0;i<5;i++ ) 
   { 
      printf("thread name=%d", param->name ); 
      usleep(10); 
   } 
 } 


 int main( int argc , char *argv[] ) 
 { 
   struct ThreadParam param; 
   param.name=1; 
   pthread_t thread_id; 
   pthread_create( &thread_id , NULL , (void*)print_thread, &param ); 
   printf("thread id:%d", (int)thread_id ); 



   struct ThreadParam param2; 
   param2.name=2; 
   pthread_t thread_id2; 
   pthread_create( &thread_id2 , NULL , (void*)print_thread, &param2 ); 
   printf("thread id:%d", (int)thread_id2 ); 

   int i;
   for( i=0; i< 5; i++ ) 
   { 
      printf("main thread"); 
      usleep(10); 

   } 
   pthread_join( thread_id, NULL ); 
   pthread_join( thread_id2, NULL ); 
   return 1; 
 }

output:

 $ gcc thread.c -pthread -o thread && ./thread 
 thread id:-1215411344 
 thread id:-1223804048 
 main thread 
 thread name=2 
 thread name=1 
 main thread 
 thread name=2 
 thread name=1 
 main thread 
 thread name=2 
 thread name=1 
 main thread 
 thread name=2 
 thread name=1 
 main thread 
 thread name=2 
 thread name=1 
 $

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