eval_intern.h

   1
   2 #ifndef RUBY_EVAL_INTERN_H
   3 #define RUBY_EVAL_INTERN_H
   4
   5 #define PASS_PASSED_BLOCK_TH(th) do { \
   6     (th)->passed_block = GC_GUARDED_PTR_REF((rb_block_t *)(th)->cfp->lfp[0]); \
   7     (th)->cfp->flag |= VM_FRAME_FLAG_PASSED; \
   8 } while (0)
   9
  10 #define PASS_PASSED_BLOCK() do { \
  11     rb_thread_t * const __th__ = GET_THREAD(); \
  12     PASS_PASSED_BLOCK_TH(__th__); \
  13 } while (0)
  14
  15 #include "ruby/ruby.h"
  16 #include "ruby/node.h"
  17 #include "ruby/util.h"
  18 #include "ruby/signal.h"
  19 #include "vm_core.h"
  20
  21 #ifdef HAVE_STDLIB_H
  22 #include <stdlib.h>
  23 #endif
  24 #ifndef EXIT_SUCCESS
  25 #define EXIT_SUCCESS 0
  26 #endif
  27 #ifndef EXIT_FAILURE
  28 #define EXIT_FAILURE 1
  29 #endif
  30
  31 #include <stdio.h>
  32 #include <setjmp.h>
  33
  34 #include "ruby/st.h"
  35 #include "dln.h"
  36
  37 #ifdef __APPLE__
  38 #include <crt_externs.h>
  39 #endif
  40
  41 /* Make alloca work the best possible way.  */
  42 #ifdef __GNUC__
  43 # ifndef atarist
  44 #  ifndef alloca
  45 #   define alloca __builtin_alloca
  46 #  endif
  47 # endif /* atarist */
  48 #else
  49 # ifdef HAVE_ALLOCA_H
  50 #  include <alloca.h>
  51 # else
  52 #  ifdef _AIX
  53 #pragma alloca
  54 #  else
  55 #   ifndef alloca               /* predefined by HP cc +Olibcalls */
  56 void *alloca();
  57 #   endif
  58 #  endif /* AIX */
  59 # endif /* HAVE_ALLOCA_H */
  60 #endif /* __GNUC__ */
  61
  62 #ifdef HAVE_STDARG_PROTOTYPES
  63 #include <stdarg.h>
  64 #define va_init_list(a,b) va_start(a,b)
  65 #else
  66 #include <varargs.h>
  67 #define va_init_list(a,b) va_start(a)
  68 #endif
  69
  70 #ifndef HAVE_STRING_H
  71 char *strrchr(const char *, const char);
  72 #endif
  73
  74 #ifdef HAVE_UNISTD_H
  75 #include <unistd.h>
  76 #endif
  77
  78 #ifdef HAVE_NET_SOCKET_H
  79 #include <net/socket.h>
  80 #endif
  81
  82 #ifdef __MACOS__
  83 #include "macruby_private.h"
  84 #endif
  85
  86 #ifdef __VMS
  87 #include "vmsruby_private.h"
  88 #endif
  89
  90 #define ruby_setjmp(env) RUBY_SETJMP(env)
  91 #define ruby_longjmp(env,val) RUBY_LONGJMP(env,val)
  92 #ifdef __CYGWIN__
  93 int _setjmp(), _longjmp();
  94 #endif
  95
  96 #include <sys/types.h>
  97 #include <signal.h>
  98 #include <errno.h>
  99
 100 #if defined(__VMS)
 101 #pragma nostandard
 102 #endif
 103
 104 #ifdef HAVE_SYS_SELECT_H
 105 #include <sys/select.h>
 106 #endif
 107
 108 /*
 109   Solaris sys/select.h switches select to select_large_fdset to support larger
 110   file descriptors if FD_SETSIZE is larger than 1024 on 32bit environment.
 111   But Ruby doesn't change FD_SETSIZE because fd_set is allocated dynamically.
 112   So following definition is required to use select_large_fdset.
 113 */
 114 #ifdef HAVE_SELECT_LARGE_FDSET
 115 #define select(n, r, w, e, t) select_large_fdset(n, r, w, e, t)
 116 #endif
 117
 118 #ifdef HAVE_SYS_PARAM_H
 119 #include <sys/param.h>
 120 #endif
 121
 122 #include <sys/stat.h>
 123
 124 #define SAVE_ROOT_JMPBUF(th, stmt) do \
 125   if (ruby_setjmp((th)->root_jmpbuf) == 0) { \
 126       stmt; \
 127   } \
 128   else { \
 129       rb_fiber_start(); \
 130   } while (0)
 131
 132 #define TH_PUSH_TAG(th) do { \
 133   rb_thread_t * const _th = th; \
 134   struct rb_vm_tag _tag; \
 135   _tag.tag = 0; \
 136   _tag.prev = _th->tag; \
 137   _th->tag = &_tag;
 138
 139 #define TH_POP_TAG() \
 140   _th->tag = _tag.prev; \
 141 } while (0)
 142
 143 #define TH_POP_TAG2() \
 144   _th->tag = _tag.prev
 145
 146 #define PUSH_TAG() TH_PUSH_TAG(GET_THREAD())
 147 #define POP_TAG()      TH_POP_TAG()
 148
 149 #define TH_EXEC_TAG() ruby_setjmp(_th->tag->buf)
 150
 151 #define EXEC_TAG() \
 152   TH_EXEC_TAG()
 153
 154 #define TH_JUMP_TAG(th, st) do { \
 155   ruby_longjmp(th->tag->buf,(st)); \
 156 } while (0)
 157
 158 #define JUMP_TAG(st) TH_JUMP_TAG(GET_THREAD(), st)
 159
 160 enum ruby_tag_type {
 161     RUBY_TAG_RETURN     = 0x1,
 162     RUBY_TAG_BREAK      = 0x2,
 163     RUBY_TAG_NEXT       = 0x3,
 164     RUBY_TAG_RETRY      = 0x4,
 165     RUBY_TAG_REDO       = 0x5,
 166     RUBY_TAG_RAISE      = 0x6,
 167     RUBY_TAG_THROW      = 0x7,
 168     RUBY_TAG_FATAL      = 0x8,
 169     RUBY_TAG_MASK       = 0xf
 170 };
 171 #define TAG_RETURN      RUBY_TAG_RETURN
 172 #define TAG_BREAK       RUBY_TAG_BREAK
 173 #define TAG_NEXT        RUBY_TAG_NEXT
 174 #define TAG_RETRY       RUBY_TAG_RETRY
 175 #define TAG_REDO        RUBY_TAG_REDO
 176 #define TAG_RAISE       RUBY_TAG_RAISE
 177 #define TAG_THROW       RUBY_TAG_THROW
 178 #define TAG_FATAL       RUBY_TAG_FATAL
 179 #define TAG_MASK        RUBY_TAG_MASK
 180
 181 #define NEW_THROW_OBJECT(val, pt, st) \
 182   ((VALUE)NEW_NODE(NODE_LIT, (val), (pt), (st)))
 183 #define SET_THROWOBJ_CATCH_POINT(obj, val) \
 184   (RNODE((obj))->u2.value = (val))
 185 #define SET_THROWOBJ_STATE(obj, val) \
 186   (RNODE((obj))->u3.value = (val))
 187
 188 #define GET_THROWOBJ_VAL(obj)         ((VALUE)RNODE((obj))->u1.value)
 189 #define GET_THROWOBJ_CATCH_POINT(obj) ((VALUE*)RNODE((obj))->u2.value)
 190 #define GET_THROWOBJ_STATE(obj)       ((int)RNODE((obj))->u3.value)
 191
 192 #define SCOPE_TEST(f)  (vm_cref()->nd_visi & (f))
 193 #define SCOPE_CHECK(f) (vm_cref()->nd_visi == (f))
 194 #define SCOPE_SET(f)   (vm_cref()->nd_visi = (f))
 195
 196 #define CHECK_STACK_OVERFLOW(cfp, margin) do \
 197   if (((VALUE *)(cfp)->sp) + (margin) + sizeof(rb_control_frame_t) >= ((VALUE *)cfp)) { \
 198       rb_exc_raise(sysstack_error); \
 199   } \
 200 while (0)
 201
 202 void rb_thread_cleanup(void);
 203 void rb_thread_wait_other_threads(void);
 204
 205 enum {
 206     RAISED_EXCEPTION = 1,
 207     RAISED_STACKOVERFLOW = 2,
 208     RAISED_NOMEMORY = 4
 209 };
 210 int rb_thread_set_raised(rb_thread_t *th);
 211 int rb_thread_reset_raised(rb_thread_t *th);
 212 #define rb_thread_raised_set(th, f)   ((th)->raised_flag |= (f))
 213 #define rb_thread_raised_reset(th, f) ((th)->raised_flag &= ~(f))
 214 #define rb_thread_raised_p(th, f)     (((th)->raised_flag & (f)) != 0)
 215 #define rb_thread_raised_clear(th)    ((th)->raised_flag = 0)
 216
 217 VALUE rb_f_eval(int argc, VALUE *argv, VALUE self);
 218 VALUE rb_make_exception(int argc, VALUE *argv);
 219
 220 NORETURN(void rb_fiber_start(void));
 221
 222 NORETURN(void rb_print_undef(VALUE, ID, int));
 223 NORETURN(void vm_localjump_error(const char *,VALUE, int));
 224 NORETURN(void vm_jump_tag_but_local_jump(int, VALUE));
 225
 226 VALUE vm_make_jump_tag_but_local_jump(int state, VALUE val);
 227 NODE *vm_cref(void);
 228 rb_control_frame_t *vm_get_ruby_level_caller_cfp(rb_thread_t *th, rb_control_frame_t *cfp);
 229 VALUE rb_obj_is_proc(VALUE);
 230 VALUE rb_vm_call_cfunc(VALUE recv, VALUE (*func)(VALUE), VALUE arg, const rb_block_t *blockptr, VALUE filename);
 231 void rb_thread_terminate_all(void);
 232 VALUE rb_vm_top_self();
 233 VALUE rb_vm_cbase(void);
 234
 235 #endif /* RUBY_EVAL_INTERN_H */