#include "threadimpl.h" | |
void | |
makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...) | |
{ | |
int *sp; | |
sp = (int*)ucp->uc_stack.ss_sp+ucp->uc_stack.ss_size/4; | |
sp -= argc; | |
memmove(sp, &argc+1, argc*sizeof(int)); | |
*--sp = 0; /* return address */ | |
ucp->uc_mcontext.mc_eip = (long)func; | |
ucp->uc_mcontext.mc_esp = (int)sp; | |
} | |
int | |
swapcontext(ucontext_t *oucp, ucontext_t *ucp) | |
{ | |
if(getcontext(oucp) == 0) | |
setcontext(ucp); | |
return 0; | |
} | |