ttcontext.c - plan9port - [fork] Plan 9 from user space
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       ---
       ttcontext.c (384B)
       ---
            1 #include "../threadimpl.h"
            2 #undef exits
            3 
            4 
            5 ucontext_t c0, c1;
            6 char stack[65536];
            7 
            8 void
            9 go(void *v)
           10 {
           11         print("hello, world\n");
           12         setcontext(&c0);
           13 }
           14 
           15 void
           16 main(void)
           17 {
           18 //        print("in main\n");
           19         getcontext(&c1);
           20         c1.uc_stack.ss_sp = stack;
           21         c1.uc_stack.ss_size = sizeof stack;
           22         makecontext(&c1, go, 1, 0);
           23         if(getcontext(&c0) == 0)
           24                 setcontext(&c1);
           25         print("back in main\n");
           26         exits(0);
           27 }