#ifndef RUBY_EVAL_INTERN_H

#define RUBY_EVAL_INTERN_H

#include "ruby/ruby.h"

#include "vm_core.h"

#define PASS_PASSED_BLOCK_TH(th) do { \

(th)->passed_block = rb_vm_control_frame_block_ptr(th->cfp); \

(th)->cfp->flag |= VM_FRAME_FLAG_PASSED; \

} while (0)

#define PASS_PASSED_BLOCK() do { \

rb_thread_t * const __th__ = GET_THREAD(); \

PASS_PASSED_BLOCK_TH(__th__); \

} while (0)

#ifdef HAVE_STDLIB_H

#include <stdlib.h>

#endif

#ifndef EXIT_SUCCESS

#define EXIT_SUCCESS 0

#endif

#ifndef EXIT_FAILURE

#define EXIT_FAILURE 1

#endif

#include <stdio.h>

#include <setjmp.h>

#ifdef __APPLE__

# ifdef HAVE_CRT_EXTERNS_H

# include <crt_externs.h>

# else

# include "missing/crt_externs.h"

# endif

#endif

#ifndef HAVE_STRING_H

char *strrchr(const char *, const char);

#endif

#ifdef HAVE_UNISTD_H

#include <unistd.h>

#endif

#ifdef HAVE_NET_SOCKET_H

#include <net/socket.h>

#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 <sys/types.h>

#include <signal.h>

#include <errno.h>

#ifdef HAVE_SYS_SELECT_H

#include <sys/select.h>

#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 <sys/param.h>

#endif

#include <sys/stat.h>

#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 = 0; \

_tag.prev = _th->tag;

#define TH_POP_TAG() \

_th->tag = _tag.prev; \

} while (0)

#define TH_POP_TAG2() \

_th->tag = _tag.prev

#define TH_PUSH_TAG2() (_th->tag = &_tag, 0)

#define TH_TMPPOP_TAG() TH_POP_TAG2()

#define TH_REPUSH_TAG() TH_PUSH_TAG2()

#define PUSH_TAG() TH_PUSH_TAG(GET_THREAD())

#define POP_TAG() TH_POP_TAG()

/* 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(_th) : TH_PUSH_TAG2())

#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)

enum ruby_tag_type {

};

#define TAG_RETURN RUBY_TAG_RETURN

#define TAG_BREAK RUBY_TAG_BREAK

#define TAG_NEXT RUBY_TAG_NEXT

#define TAG_RETRY RUBY_TAG_RETRY

#define TAG_REDO RUBY_TAG_REDO

#define TAG_RAISE RUBY_TAG_RAISE

#define TAG_THROW RUBY_TAG_THROW

#define TAG_FATAL RUBY_TAG_FATAL

#define TAG_MASK RUBY_TAG_MASK

#define NEW_THROW_OBJECT(val, pt, st) \

((VALUE)rb_node_newnode(NODE_LIT, (VALUE)(val), (VALUE)(pt), (VALUE)(st)))

#define SET_THROWOBJ_CATCH_POINT(obj, val) \

(RNODE((obj))->u2.value = (val))

#define SET_THROWOBJ_STATE(obj, val) \

(RNODE((obj))->u3.value = (val))

#define GET_THROWOBJ_VAL(obj) ((VALUE)RNODE((obj))->u1.value)

#define GET_THROWOBJ_CATCH_POINT(obj) ((VALUE*)RNODE((obj))->u2.value)

#define GET_THROWOBJ_STATE(obj) ((int)RNODE((obj))->u3.value)

#define SCOPE_TEST(f) (rb_vm_cref()->nd_visi & (f))

#define SCOPE_CHECK(f) (rb_vm_cref()->nd_visi == (f))

#define SCOPE_SET(f) (rb_vm_cref()->nd_visi = (f))

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, VALUE *argv, VALUE self);

VALUE rb_make_exception(int argc, VALUE *argv);

NORETURN(void rb_method_name_error(VALUE, VALUE));

NORETURN(void rb_fiber_start(void));

NORETURN(void rb_print_undef(VALUE, ID, int));

NORETURN(void rb_print_undef_str(VALUE, VALUE));

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, VALUE *argv,

VALUE obj, int call_status));

VALUE rb_vm_make_jump_tag_but_local_jump(int state, VALUE val);

NODE *rb_vm_cref(void);

VALUE rb_vm_call_cfunc(VALUE recv, VALUE (*func)(VALUE), VALUE arg, const rb_block_t *blockptr, VALUE filename);

void rb_vm_set_progname(VALUE filename);

void rb_thread_terminate_all(void);

VALUE rb_vm_top_self();

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 */