#ifndef RUBY_EVAL_INTERN_H #define RUBY_EVAL_INTERN_H #include "ruby/ruby.h" #include "vm_core.h" static inline void vm_passed_block_handler_set(rb_thread_t *th, VALUE block_handler) { VM_ASSERT(vm_block_handler_verify(block_handler)); th->passed_block_handler = block_handler; } static inline void pass_passed_block_handler(rb_thread_t *th) { VALUE block_handler = rb_vm_frame_block_handler(th->cfp); VM_ASSERT(vm_block_handler_verify(block_handler)); vm_passed_block_handler_set(th, block_handler); VM_ENV_FLAGS_SET(th->cfp->ep, VM_FRAME_FLAG_PASSED); } #define PASS_PASSED_BLOCK_HANDLER_TH(th) pass_passed_block_handler(th) #define PASS_PASSED_BLOCK_HANDLER() pass_passed_block_handler(GET_THREAD()) #ifdef HAVE_STDLIB_H #include #endif #ifndef EXIT_SUCCESS #define EXIT_SUCCESS 0 #endif #ifndef EXIT_FAILURE #define EXIT_FAILURE 1 #endif #include #include #ifdef __APPLE__ # ifdef HAVE_CRT_EXTERNS_H # include # else # include "missing/crt_externs.h" # endif #endif #ifndef HAVE_STRING_H char *strrchr(const char *, const char); #endif #ifdef HAVE_UNISTD_H #include #endif #ifdef HAVE_NET_SOCKET_H #include #endif #define ruby_setjmp(env) RUBY_SETJMP(env) #define ruby_longjmp(env,val) RUBY_LONGJMP((env),(val)) #ifdef __CYGWIN__ # ifndef _setjmp int _setjmp(jmp_buf); # endif # ifndef _longjmp NORETURN(void _longjmp(jmp_buf, int)); # endif #endif #include #include #include #ifdef HAVE_SYS_SELECT_H #include #endif /* Solaris sys/select.h switches select to select_large_fdset to support larger file descriptors if FD_SETSIZE is larger than 1024 on 32bit environment. But Ruby doesn't change FD_SETSIZE because fd_set is allocated dynamically. So following definition is required to use select_large_fdset. */ #ifdef HAVE_SELECT_LARGE_FDSET #define select(n, r, w, e, t) select_large_fdset((n), (r), (w), (e), (t)) extern int select_large_fdset(int, fd_set *, fd_set *, fd_set *, struct timeval *); #endif #ifdef HAVE_SYS_PARAM_H #include #endif #include #ifdef _MSC_VER #define SAVE_ROOT_JMPBUF_BEFORE_STMT \ __try { #define SAVE_ROOT_JMPBUF_AFTER_STMT \ } \ __except (GetExceptionCode() == EXCEPTION_STACK_OVERFLOW ? \ (rb_thread_raised_set(GET_THREAD(), RAISED_STACKOVERFLOW), \ raise(SIGSEGV), \ EXCEPTION_EXECUTE_HANDLER) : \ EXCEPTION_CONTINUE_SEARCH) { \ /* never reaches here */ \ } #elif defined(__MINGW32__) LONG WINAPI rb_w32_stack_overflow_handler(struct _EXCEPTION_POINTERS *); #define SAVE_ROOT_JMPBUF_BEFORE_STMT \ do { \ PVOID _handler = AddVectoredExceptionHandler(1, rb_w32_stack_overflow_handler); #define SAVE_ROOT_JMPBUF_AFTER_STMT \ RemoveVectoredExceptionHandler(_handler); \ } while (0); #else #define SAVE_ROOT_JMPBUF_BEFORE_STMT #define SAVE_ROOT_JMPBUF_AFTER_STMT #endif #define SAVE_ROOT_JMPBUF(th, stmt) do \ if (ruby_setjmp((th)->root_jmpbuf) == 0) { \ SAVE_ROOT_JMPBUF_BEFORE_STMT \ stmt; \ SAVE_ROOT_JMPBUF_AFTER_STMT \ } \ else { \ rb_fiber_start(); \ } while (0) #define TH_PUSH_TAG(th) do { \ rb_thread_t * const _th = (th); \ struct rb_vm_tag _tag; \ _tag.tag = Qundef; \ _tag.prev = _th->tag; #define TH_POP_TAG() \ _th->tag = _tag.prev; \ } while (0) #define TH_TMPPOP_TAG() \ _th->tag = _tag.prev #define TH_REPUSH_TAG() (void)(_th->tag = &_tag) #define PUSH_TAG() TH_PUSH_TAG(GET_THREAD()) #define POP_TAG() TH_POP_TAG() #if defined __GNUC__ && __GNUC__ == 4 && (__GNUC_MINOR__ >= 6 && __GNUC_MINOR__ <= 8) # define VAR_FROM_MEMORY(var) __extension__(*(__typeof__(var) volatile *)&(var)) # define VAR_INITIALIZED(var) ((var) = VAR_FROM_MEMORY(var)) # define VAR_NOCLOBBERED(var) volatile var #else # define VAR_FROM_MEMORY(var) (var) # define VAR_INITIALIZED(var) ((void)&(var)) # define VAR_NOCLOBBERED(var) var #endif /* clear th->state, and return the value */ static inline int rb_threadptr_tag_state(rb_thread_t *th) { int state = th->state; th->state = 0; return state; } NORETURN(static inline void rb_threadptr_tag_jump(rb_thread_t *, int)); static inline void rb_threadptr_tag_jump(rb_thread_t *th, int st) { th->state = st; ruby_longjmp(th->tag->buf, 1); } /* setjmp() in assignment expression rhs is undefined behavior [ISO/IEC 9899:1999] 7.13.1.1 */ #define TH_EXEC_TAG() \ (ruby_setjmp(_tag.buf) ? rb_threadptr_tag_state(VAR_FROM_MEMORY(_th)) : (TH_REPUSH_TAG(), 0)) #define EXEC_TAG() \ TH_EXEC_TAG() #define TH_JUMP_TAG(th, st) rb_threadptr_tag_jump(th, st) #define JUMP_TAG(st) TH_JUMP_TAG(GET_THREAD(), (st)) #define INTERNAL_EXCEPTION_P(exc) FIXNUM_P(exc) /* CREF operators */ #define CREF_FL_PUSHED_BY_EVAL IMEMO_FL_USER1 #define CREF_FL_OMOD_SHARED IMEMO_FL_USER2 static inline VALUE CREF_CLASS(const rb_cref_t *cref) { return cref->klass; } static inline rb_cref_t * CREF_NEXT(const rb_cref_t *cref) { return cref->next; } static inline const rb_scope_visibility_t * CREF_SCOPE_VISI(const rb_cref_t *cref) { return &cref->scope_visi; } static inline VALUE CREF_REFINEMENTS(const rb_cref_t *cref) { return cref->refinements; } static inline void CREF_REFINEMENTS_SET(rb_cref_t *cref, VALUE refs) { RB_OBJ_WRITE(cref, &cref->refinements, refs); } static inline int CREF_PUSHED_BY_EVAL(const rb_cref_t *cref) { return cref->flags & CREF_FL_PUSHED_BY_EVAL; } static inline void CREF_PUSHED_BY_EVAL_SET(rb_cref_t *cref) { cref->flags |= CREF_FL_PUSHED_BY_EVAL; } static inline int CREF_OMOD_SHARED(const rb_cref_t *cref) { return cref->flags & CREF_FL_OMOD_SHARED; } static inline void CREF_OMOD_SHARED_SET(rb_cref_t *cref) { cref->flags |= CREF_FL_OMOD_SHARED; } static inline void CREF_OMOD_SHARED_UNSET(rb_cref_t *cref) { cref->flags &= ~CREF_FL_OMOD_SHARED; } void rb_thread_cleanup(void); void rb_thread_wait_other_threads(void); enum { RAISED_EXCEPTION = 1, RAISED_STACKOVERFLOW = 2, RAISED_NOMEMORY = 4 }; int rb_threadptr_set_raised(rb_thread_t *th); int rb_threadptr_reset_raised(rb_thread_t *th); #define rb_thread_raised_set(th, f) ((th)->raised_flag |= (f)) #define rb_thread_raised_reset(th, f) ((th)->raised_flag &= ~(f)) #define rb_thread_raised_p(th, f) (((th)->raised_flag & (f)) != 0) #define rb_thread_raised_clear(th) ((th)->raised_flag = 0) VALUE rb_f_eval(int argc, const VALUE *argv, VALUE self); VALUE rb_make_exception(int argc, const VALUE *argv); NORETURN(void rb_method_name_error(VALUE, VALUE)); NORETURN(void rb_fiber_start(void)); NORETURN(void rb_print_undef(VALUE, ID, rb_method_visibility_t)); NORETURN(void rb_print_undef_str(VALUE, VALUE)); NORETURN(void rb_print_inaccessible(VALUE, ID, rb_method_visibility_t)); NORETURN(void rb_vm_localjump_error(const char *,VALUE, int)); NORETURN(void rb_vm_jump_tag_but_local_jump(int)); NORETURN(void rb_raise_method_missing(rb_thread_t *th, int argc, const VALUE *argv, VALUE obj, int call_status)); VALUE rb_vm_make_jump_tag_but_local_jump(int state, VALUE val); rb_cref_t *rb_vm_cref(void); rb_cref_t *rb_vm_cref_replace_with_duplicated_cref(void); VALUE rb_vm_call_cfunc(VALUE recv, VALUE (*func)(VALUE), VALUE arg, VALUE block_handler, VALUE filename); void rb_vm_set_progname(VALUE filename); void rb_thread_terminate_all(void); VALUE rb_vm_cbase(void); #ifndef CharNext /* defined as CharNext[AW] on Windows. */ # ifdef HAVE_MBLEN # define CharNext(p) ((p) + mblen((p), RUBY_MBCHAR_MAXSIZE)) # else # define CharNext(p) ((p) + 1) # endif #endif #if defined DOSISH || defined __CYGWIN__ static inline void translit_char(char *p, int from, int to) { while (*p) { if ((unsigned char)*p == from) *p = to; p = CharNext(p); } } #endif #endif /* RUBY_EVAL_INTERN_H */