mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
6a169a499b
* vm.c (rb_vm_jump_tag_but_local_jump): no longer used since r51292. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60025 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
341 lines
8.8 KiB
C
341 lines
8.8 KiB
C
#ifndef RUBY_EVAL_INTERN_H
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#define RUBY_EVAL_INTERN_H
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#include "ruby/ruby.h"
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#include "vm_core.h"
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static inline void
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vm_passed_block_handler_set(rb_thread_t *th, VALUE block_handler)
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{
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vm_block_handler_verify(block_handler);
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th->passed_block_handler = block_handler;
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}
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static inline void
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pass_passed_block_handler(rb_thread_t *th)
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{
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VALUE block_handler = rb_vm_frame_block_handler(th->ec.cfp);
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vm_block_handler_verify(block_handler);
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vm_passed_block_handler_set(th, block_handler);
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VM_ENV_FLAGS_SET(th->ec.cfp->ep, VM_FRAME_FLAG_PASSED);
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}
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#define PASS_PASSED_BLOCK_HANDLER_TH(th) pass_passed_block_handler(th)
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#define PASS_PASSED_BLOCK_HANDLER() pass_passed_block_handler(GET_THREAD())
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#ifdef HAVE_STDLIB_H
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#include <stdlib.h>
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#endif
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#ifndef EXIT_SUCCESS
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#define EXIT_SUCCESS 0
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#endif
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#ifndef EXIT_FAILURE
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#define EXIT_FAILURE 1
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#endif
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#include <stdio.h>
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#include <setjmp.h>
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#ifdef __APPLE__
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# ifdef HAVE_CRT_EXTERNS_H
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# include <crt_externs.h>
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# else
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# include "missing/crt_externs.h"
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# endif
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#endif
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#ifndef HAVE_STRING_H
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char *strrchr(const char *, const char);
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#endif
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#ifdef HAVE_NET_SOCKET_H
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#include <net/socket.h>
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#endif
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#define ruby_setjmp(env) RUBY_SETJMP(env)
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#define ruby_longjmp(env,val) RUBY_LONGJMP((env),(val))
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#ifdef __CYGWIN__
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# ifndef _setjmp
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int _setjmp(jmp_buf);
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# endif
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# ifndef _longjmp
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NORETURN(void _longjmp(jmp_buf, int));
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# endif
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#endif
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#include <sys/types.h>
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#include <signal.h>
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#include <errno.h>
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#ifdef HAVE_SYS_SELECT_H
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#include <sys/select.h>
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#endif
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/*
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Solaris sys/select.h switches select to select_large_fdset to support larger
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file descriptors if FD_SETSIZE is larger than 1024 on 32bit environment.
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But Ruby doesn't change FD_SETSIZE because fd_set is allocated dynamically.
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So following definition is required to use select_large_fdset.
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*/
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#ifdef HAVE_SELECT_LARGE_FDSET
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#define select(n, r, w, e, t) select_large_fdset((n), (r), (w), (e), (t))
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extern int select_large_fdset(int, fd_set *, fd_set *, fd_set *, struct timeval *);
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#endif
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#ifdef HAVE_SYS_PARAM_H
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#include <sys/param.h>
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#endif
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#include <sys/stat.h>
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#ifdef _MSC_VER
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#define SAVE_ROOT_JMPBUF_BEFORE_STMT \
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__try {
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#define SAVE_ROOT_JMPBUF_AFTER_STMT \
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} \
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__except (GetExceptionCode() == EXCEPTION_STACK_OVERFLOW ? \
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(rb_thread_raised_set(GET_THREAD(), RAISED_STACKOVERFLOW), \
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raise(SIGSEGV), \
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EXCEPTION_EXECUTE_HANDLER) : \
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EXCEPTION_CONTINUE_SEARCH) { \
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/* never reaches here */ \
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}
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#elif defined(__MINGW32__)
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LONG WINAPI rb_w32_stack_overflow_handler(struct _EXCEPTION_POINTERS *);
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#define SAVE_ROOT_JMPBUF_BEFORE_STMT \
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do { \
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PVOID _handler = AddVectoredExceptionHandler(1, rb_w32_stack_overflow_handler);
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#define SAVE_ROOT_JMPBUF_AFTER_STMT \
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RemoveVectoredExceptionHandler(_handler); \
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} while (0);
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#else
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#define SAVE_ROOT_JMPBUF_BEFORE_STMT
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#define SAVE_ROOT_JMPBUF_AFTER_STMT
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#endif
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#define SAVE_ROOT_JMPBUF(th, stmt) do \
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if (ruby_setjmp((th)->root_jmpbuf) == 0) { \
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SAVE_ROOT_JMPBUF_BEFORE_STMT \
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stmt; \
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SAVE_ROOT_JMPBUF_AFTER_STMT \
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} \
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else { \
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rb_fiber_start(); \
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} while (0)
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#define TH_PUSH_TAG(th) do { \
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rb_thread_t * const _th = (th); \
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struct rb_vm_tag _tag; \
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_tag.state = TAG_NONE; \
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_tag.tag = Qundef; \
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_tag.prev = _th->ec.tag;
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#define TH_POP_TAG() \
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_th->ec.tag = _tag.prev; \
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} while (0)
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#define TH_TMPPOP_TAG() \
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_th->ec.tag = _tag.prev
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#define TH_REPUSH_TAG() (void)(_th->ec.tag = &_tag)
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#define PUSH_TAG() TH_PUSH_TAG(GET_THREAD())
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#define POP_TAG() TH_POP_TAG()
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#if defined __GNUC__ && __GNUC__ == 4 && (__GNUC_MINOR__ >= 6 && __GNUC_MINOR__ <= 8)
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# define VAR_FROM_MEMORY(var) __extension__(*(__typeof__(var) volatile *)&(var))
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# define VAR_INITIALIZED(var) ((var) = VAR_FROM_MEMORY(var))
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# define VAR_NOCLOBBERED(var) volatile var
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#else
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# define VAR_FROM_MEMORY(var) (var)
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# define VAR_INITIALIZED(var) ((void)&(var))
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# define VAR_NOCLOBBERED(var) var
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#endif
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#if defined(USE_UNALIGNED_MEMBER_ACCESS) && USE_UNALIGNED_MEMBER_ACCESS && \
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defined(__clang__)
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# define UNALIGNED_MEMBER_ACCESS(expr) __extension__({ \
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_Pragma("GCC diagnostic push"); \
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_Pragma("GCC diagnostic ignored \"-Waddress-of-packed-member\""); \
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typeof(expr) unaligned_member_access_result = (expr); \
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_Pragma("GCC diagnostic pop"); \
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unaligned_member_access_result; \
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})
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#else
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# define UNALIGNED_MEMBER_ACCESS(expr) expr
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#endif
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#define UNALIGNED_MEMBER_PTR(ptr, mem) UNALIGNED_MEMBER_ACCESS(&(ptr)->mem)
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#undef RB_OBJ_WRITE
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#define RB_OBJ_WRITE(a, slot, b) UNALIGNED_MEMBER_ACCESS(rb_obj_write((VALUE)(a), (VALUE *)(slot), (VALUE)(b), __FILE__, __LINE__))
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/* clear th->ec.tag->state, and return the value */
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static inline int
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rb_threadptr_tag_state(rb_thread_t *th)
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{
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enum ruby_tag_type state = th->ec.tag->state;
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th->ec.tag->state = TAG_NONE;
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return state;
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}
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NORETURN(static inline void rb_threadptr_tag_jump(rb_thread_t *, enum ruby_tag_type st));
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static inline void
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rb_threadptr_tag_jump(rb_thread_t *th, enum ruby_tag_type st)
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{
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th->ec.tag->state = st;
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ruby_longjmp(th->ec.tag->buf, 1);
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}
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/*
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setjmp() in assignment expression rhs is undefined behavior
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[ISO/IEC 9899:1999] 7.13.1.1
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*/
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#define TH_EXEC_TAG() \
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(ruby_setjmp(_tag.buf) ? rb_threadptr_tag_state(VAR_FROM_MEMORY(_th)) : (TH_REPUSH_TAG(), 0))
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#define EXEC_TAG() \
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TH_EXEC_TAG()
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#define TH_JUMP_TAG(th, st) rb_threadptr_tag_jump(th, st)
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#define JUMP_TAG(st) TH_JUMP_TAG(GET_THREAD(), (st))
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#define INTERNAL_EXCEPTION_P(exc) FIXNUM_P(exc)
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/* CREF operators */
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#define CREF_FL_PUSHED_BY_EVAL IMEMO_FL_USER1
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#define CREF_FL_OMOD_SHARED IMEMO_FL_USER2
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static inline VALUE
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CREF_CLASS(const rb_cref_t *cref)
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{
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return cref->klass;
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}
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static inline rb_cref_t *
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CREF_NEXT(const rb_cref_t *cref)
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{
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return cref->next;
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}
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static inline const rb_scope_visibility_t *
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CREF_SCOPE_VISI(const rb_cref_t *cref)
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{
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return &cref->scope_visi;
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}
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static inline VALUE
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CREF_REFINEMENTS(const rb_cref_t *cref)
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{
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return cref->refinements;
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}
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static inline void
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CREF_REFINEMENTS_SET(rb_cref_t *cref, VALUE refs)
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{
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RB_OBJ_WRITE(cref, &cref->refinements, refs);
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}
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static inline int
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CREF_PUSHED_BY_EVAL(const rb_cref_t *cref)
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{
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return cref->flags & CREF_FL_PUSHED_BY_EVAL;
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}
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static inline void
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CREF_PUSHED_BY_EVAL_SET(rb_cref_t *cref)
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{
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cref->flags |= CREF_FL_PUSHED_BY_EVAL;
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}
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static inline int
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CREF_OMOD_SHARED(const rb_cref_t *cref)
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{
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return cref->flags & CREF_FL_OMOD_SHARED;
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}
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static inline void
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CREF_OMOD_SHARED_SET(rb_cref_t *cref)
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{
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cref->flags |= CREF_FL_OMOD_SHARED;
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}
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static inline void
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CREF_OMOD_SHARED_UNSET(rb_cref_t *cref)
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{
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cref->flags &= ~CREF_FL_OMOD_SHARED;
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}
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void rb_thread_cleanup(void);
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void rb_thread_wait_other_threads(void);
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enum {
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RAISED_EXCEPTION = 1,
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RAISED_STACKOVERFLOW = 2,
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RAISED_NOMEMORY = 4
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};
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int rb_threadptr_set_raised(rb_thread_t *th);
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int rb_threadptr_reset_raised(rb_thread_t *th);
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#define rb_thread_raised_set(th, f) ((th)->ec.raised_flag |= (f))
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#define rb_thread_raised_reset(th, f) ((th)->ec.raised_flag &= ~(f))
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#define rb_thread_raised_p(th, f) (((th)->ec.raised_flag & (f)) != 0)
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#define rb_thread_raised_clear(th) ((th)->ec.raised_flag = 0)
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int rb_threadptr_stack_check(rb_thread_t *th);
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VALUE rb_f_eval(int argc, const VALUE *argv, VALUE self);
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VALUE rb_make_exception(int argc, const VALUE *argv);
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NORETURN(void rb_method_name_error(VALUE, VALUE));
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NORETURN(void rb_fiber_start(void));
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NORETURN(void rb_print_undef(VALUE, ID, rb_method_visibility_t));
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NORETURN(void rb_print_undef_str(VALUE, VALUE));
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NORETURN(void rb_print_inaccessible(VALUE, ID, rb_method_visibility_t));
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NORETURN(void rb_vm_localjump_error(const char *,VALUE, int));
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#if 0
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NORETURN(void rb_vm_jump_tag_but_local_jump(int));
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#endif
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NORETURN(void rb_raise_method_missing(rb_thread_t *th, int argc, const VALUE *argv,
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VALUE obj, int call_status));
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VALUE rb_vm_make_jump_tag_but_local_jump(int state, VALUE val);
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rb_cref_t *rb_vm_cref(void);
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rb_cref_t *rb_vm_cref_replace_with_duplicated_cref(void);
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VALUE rb_vm_call_cfunc(VALUE recv, VALUE (*func)(VALUE), VALUE arg, VALUE block_handler, VALUE filename);
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void rb_vm_set_progname(VALUE filename);
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void rb_thread_terminate_all(void);
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VALUE rb_vm_cbase(void);
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/* vm_backtrace.c */
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VALUE rb_threadptr_backtrace_object(rb_thread_t *th);
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VALUE rb_threadptr_backtrace_str_ary(rb_thread_t *th, long lev, long n);
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VALUE rb_threadptr_backtrace_location_ary(rb_thread_t *th, long lev, long n);
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#ifndef CharNext /* defined as CharNext[AW] on Windows. */
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# ifdef HAVE_MBLEN
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# define CharNext(p) ((p) + mblen((p), RUBY_MBCHAR_MAXSIZE))
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# else
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# define CharNext(p) ((p) + 1)
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# endif
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#endif
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#if defined DOSISH || defined __CYGWIN__
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static inline void
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translit_char(char *p, int from, int to)
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{
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while (*p) {
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if ((unsigned char)*p == from)
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*p = to;
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p = CharNext(p);
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}
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}
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#endif
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#endif /* RUBY_EVAL_INTERN_H */
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