Ruby 1.9.3p327(2012-11-10revision37606)
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00001 #ifndef RUBY_EVAL_INTERN_H 00002 #define RUBY_EVAL_INTERN_H 00003 00004 #include "ruby/ruby.h" 00005 #include "vm_core.h" 00006 00007 #define PASS_PASSED_BLOCK_TH(th) do { \ 00008 (th)->passed_block = GC_GUARDED_PTR_REF((rb_block_t *)(th)->cfp->lfp[0]); \ 00009 (th)->cfp->flag |= VM_FRAME_FLAG_PASSED; \ 00010 } while (0) 00011 00012 #define PASS_PASSED_BLOCK() do { \ 00013 rb_thread_t * const __th__ = GET_THREAD(); \ 00014 PASS_PASSED_BLOCK_TH(__th__); \ 00015 } while (0) 00016 00017 #ifdef HAVE_STDLIB_H 00018 #include <stdlib.h> 00019 #endif 00020 #ifndef EXIT_SUCCESS 00021 #define EXIT_SUCCESS 0 00022 #endif 00023 #ifndef EXIT_FAILURE 00024 #define EXIT_FAILURE 1 00025 #endif 00026 00027 #include <stdio.h> 00028 #include <setjmp.h> 00029 00030 #ifdef __APPLE__ 00031 #include <crt_externs.h> 00032 #endif 00033 00034 /* Make alloca work the best possible way. */ 00035 #ifdef __GNUC__ 00036 # ifndef atarist 00037 # ifndef alloca 00038 # define alloca __builtin_alloca 00039 # endif 00040 # endif /* atarist */ 00041 #else 00042 # ifdef HAVE_ALLOCA_H 00043 # include <alloca.h> 00044 # else 00045 # ifdef _AIX 00046 #pragma alloca 00047 # else 00048 # ifndef alloca /* predefined by HP cc +Olibcalls */ 00049 void *alloca(); 00050 # endif 00051 # endif /* AIX */ 00052 # endif /* HAVE_ALLOCA_H */ 00053 #endif /* __GNUC__ */ 00054 00055 #ifndef HAVE_STRING_H 00056 char *strrchr(const char *, const char); 00057 #endif 00058 00059 #ifdef HAVE_UNISTD_H 00060 #include <unistd.h> 00061 #endif 00062 00063 #ifdef HAVE_NET_SOCKET_H 00064 #include <net/socket.h> 00065 #endif 00066 00067 #define ruby_setjmp(env) RUBY_SETJMP(env) 00068 #define ruby_longjmp(env,val) RUBY_LONGJMP((env),(val)) 00069 #ifdef __CYGWIN__ 00070 # ifndef _setjmp 00071 int _setjmp(jmp_buf); 00072 # endif 00073 # ifndef _longjmp 00074 NORETURN(void _longjmp(jmp_buf, int)); 00075 # endif 00076 #endif 00077 00078 #include <sys/types.h> 00079 #include <signal.h> 00080 #include <errno.h> 00081 00082 #ifdef HAVE_SYS_SELECT_H 00083 #include <sys/select.h> 00084 #endif 00085 00086 /* 00087 Solaris sys/select.h switches select to select_large_fdset to support larger 00088 file descriptors if FD_SETSIZE is larger than 1024 on 32bit environment. 00089 But Ruby doesn't change FD_SETSIZE because fd_set is allocated dynamically. 00090 So following definition is required to use select_large_fdset. 00091 */ 00092 #ifdef HAVE_SELECT_LARGE_FDSET 00093 #define select(n, r, w, e, t) select_large_fdset((n), (r), (w), (e), (t)) 00094 extern int select_large_fdset(int, fd_set *, fd_set *, fd_set *, struct timeval *); 00095 #endif 00096 00097 #ifdef HAVE_SYS_PARAM_H 00098 #include <sys/param.h> 00099 #endif 00100 00101 #include <sys/stat.h> 00102 00103 #define SAVE_ROOT_JMPBUF(th, stmt) do \ 00104 if (ruby_setjmp((th)->root_jmpbuf) == 0) { \ 00105 stmt; \ 00106 } \ 00107 else { \ 00108 rb_fiber_start(); \ 00109 } while (0) 00110 00111 #define TH_PUSH_TAG(th) do { \ 00112 rb_thread_t * const _th = (th); \ 00113 struct rb_vm_tag _tag; \ 00114 _tag.tag = 0; \ 00115 _tag.prev = _th->tag; \ 00116 _th->tag = &_tag; 00117 00118 #define TH_POP_TAG() \ 00119 _th->tag = _tag.prev; \ 00120 } while (0) 00121 00122 #define TH_POP_TAG2() \ 00123 _th->tag = _tag.prev 00124 00125 #define PUSH_TAG() TH_PUSH_TAG(GET_THREAD()) 00126 #define POP_TAG() TH_POP_TAG() 00127 00128 #define TH_EXEC_TAG() ruby_setjmp(_th->tag->buf) 00129 00130 #define EXEC_TAG() \ 00131 TH_EXEC_TAG() 00132 00133 #define TH_JUMP_TAG(th, st) do { \ 00134 ruby_longjmp((th)->tag->buf,(st)); \ 00135 } while (0) 00136 00137 #define JUMP_TAG(st) TH_JUMP_TAG(GET_THREAD(), (st)) 00138 00139 #define INTERNAL_EXCEPTION_P(exc) FIXNUM_P(exc) 00140 00141 enum ruby_tag_type { 00142 RUBY_TAG_RETURN = 0x1, 00143 RUBY_TAG_BREAK = 0x2, 00144 RUBY_TAG_NEXT = 0x3, 00145 RUBY_TAG_RETRY = 0x4, 00146 RUBY_TAG_REDO = 0x5, 00147 RUBY_TAG_RAISE = 0x6, 00148 RUBY_TAG_THROW = 0x7, 00149 RUBY_TAG_FATAL = 0x8, 00150 RUBY_TAG_MASK = 0xf 00151 }; 00152 #define TAG_RETURN RUBY_TAG_RETURN 00153 #define TAG_BREAK RUBY_TAG_BREAK 00154 #define TAG_NEXT RUBY_TAG_NEXT 00155 #define TAG_RETRY RUBY_TAG_RETRY 00156 #define TAG_REDO RUBY_TAG_REDO 00157 #define TAG_RAISE RUBY_TAG_RAISE 00158 #define TAG_THROW RUBY_TAG_THROW 00159 #define TAG_FATAL RUBY_TAG_FATAL 00160 #define TAG_MASK RUBY_TAG_MASK 00161 00162 #define NEW_THROW_OBJECT(val, pt, st) \ 00163 ((VALUE)rb_node_newnode(NODE_LIT, (VALUE)(val), (VALUE)(pt), (VALUE)(st))) 00164 #define SET_THROWOBJ_CATCH_POINT(obj, val) \ 00165 (RNODE((obj))->u2.value = (val)) 00166 #define SET_THROWOBJ_STATE(obj, val) \ 00167 (RNODE((obj))->u3.value = (val)) 00168 00169 #define GET_THROWOBJ_VAL(obj) ((VALUE)RNODE((obj))->u1.value) 00170 #define GET_THROWOBJ_CATCH_POINT(obj) ((VALUE*)RNODE((obj))->u2.value) 00171 #define GET_THROWOBJ_STATE(obj) ((int)RNODE((obj))->u3.value) 00172 00173 #define SCOPE_TEST(f) (rb_vm_cref()->nd_visi & (f)) 00174 #define SCOPE_CHECK(f) (rb_vm_cref()->nd_visi == (f)) 00175 #define SCOPE_SET(f) (rb_vm_cref()->nd_visi = (f)) 00176 00177 #define CHECK_STACK_OVERFLOW(cfp, margin) do \ 00178 if ((VALUE *)((char *)(((VALUE *)(cfp)->sp) + (margin)) + sizeof(rb_control_frame_t)) >= ((VALUE *)(cfp))) { \ 00179 rb_exc_raise(sysstack_error); \ 00180 } \ 00181 while (0) 00182 00183 void rb_thread_cleanup(void); 00184 void rb_thread_wait_other_threads(void); 00185 00186 enum { 00187 RAISED_EXCEPTION = 1, 00188 RAISED_STACKOVERFLOW = 2, 00189 RAISED_NOMEMORY = 4 00190 }; 00191 int rb_threadptr_set_raised(rb_thread_t *th); 00192 int rb_threadptr_reset_raised(rb_thread_t *th); 00193 #define rb_thread_raised_set(th, f) ((th)->raised_flag |= (f)) 00194 #define rb_thread_raised_reset(th, f) ((th)->raised_flag &= ~(f)) 00195 #define rb_thread_raised_p(th, f) (((th)->raised_flag & (f)) != 0) 00196 #define rb_thread_raised_clear(th) ((th)->raised_flag = 0) 00197 00198 VALUE rb_f_eval(int argc, VALUE *argv, VALUE self); 00199 VALUE rb_make_exception(int argc, VALUE *argv); 00200 00201 NORETURN(void rb_fiber_start(void)); 00202 00203 NORETURN(void rb_print_undef(VALUE, ID, int)); 00204 NORETURN(void rb_vm_localjump_error(const char *,VALUE, int)); 00205 NORETURN(void rb_vm_jump_tag_but_local_jump(int, VALUE)); 00206 NORETURN(void rb_raise_method_missing(rb_thread_t *th, int argc, VALUE *argv, 00207 VALUE obj, int call_status)); 00208 00209 VALUE rb_vm_make_jump_tag_but_local_jump(int state, VALUE val); 00210 NODE *rb_vm_cref(void); 00211 VALUE rb_vm_call_cfunc(VALUE recv, VALUE (*func)(VALUE), VALUE arg, const rb_block_t *blockptr, VALUE filename); 00212 void rb_vm_set_progname(VALUE filename); 00213 void rb_thread_terminate_all(void); 00214 VALUE rb_vm_top_self(); 00215 VALUE rb_vm_cbase(void); 00216 void rb_trap_restore_mask(void); 00217 00218 #ifndef CharNext /* defined as CharNext[AW] on Windows. */ 00219 #define CharNext(p) ((p) + mblen((p), RUBY_MBCHAR_MAXSIZE)) 00220 #endif 00221 00222 #if defined DOSISH || defined __CYGWIN__ 00223 static inline void 00224 translit_char(char *p, int from, int to) 00225 { 00226 while (*p) { 00227 if ((unsigned char)*p == from) 00228 *p = to; 00229 p = CharNext(p); 00230 } 00231 } 00232 #endif 00233 00234 #endif /* RUBY_EVAL_INTERN_H */ 00235