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//
// SPAWN        :  Spawn() and Suicide()
//

// Modified:    By:             Reason:
// ---------    ---             -------
// 90/02/15     G. Coschi       initial implementation

#include <setjmp.h>

static  jmp_buf *SpawnStack;


int     Spawn( void (*fn)() ) {
//=============================

    jmp_buf     *save_env;
    jmp_buf     env;
    int         status;

    save_env = SpawnStack;
    SpawnStack = env;
    status = setjmp( env );
    if( status == 0 ) {
        (*fn)();
    }
    SpawnStack = save_env;
    return( status );
}


void    Suicide( void ) {
//=======================

    longjmp( SpawnStack, 1 );
}
