ldump.c
资源名称:wow.rar [点击查看]
上传用户:jxpjxmjjw
上传日期:2009-12-07
资源大小:5877k
文件大小:3k
源码类别:
模拟服务器
开发平台:
Visual C++
- /*
- ** $Id: ldump.c,v 1.1 2004/08/20 02:26:56 JH Exp $
- ** save bytecodes
- ** See Copyright Notice in lua.h
- */
- #include <stddef.h>
- #define ldump_c
- #include "lua.h"
- #include "lobject.h"
- #include "lopcodes.h"
- #include "lstate.h"
- #include "lundump.h"
- #define DumpVector(b,n,size,D) DumpBlock(b,(n)*(size),D)
- #define DumpLiteral(s,D) DumpBlock("" s,(sizeof(s))-1,D)
- typedef struct {
- lua_State* L;
- lua_Chunkwriter write;
- void* data;
- } DumpState;
- static void DumpBlock(const void* b, size_t size, DumpState* D)
- {
- lua_unlock(D->L);
- (*D->write)(D->L,b,size,D->data);
- lua_lock(D->L);
- }
- static void DumpByte(int y, DumpState* D)
- {
- char x=(char)y;
- DumpBlock(&x,sizeof(x),D);
- }
- static void DumpInt(int x, DumpState* D)
- {
- DumpBlock(&x,sizeof(x),D);
- }
- static void DumpSize(size_t x, DumpState* D)
- {
- DumpBlock(&x,sizeof(x),D);
- }
- static void DumpNumber(lua_Number x, DumpState* D)
- {
- DumpBlock(&x,sizeof(x),D);
- }
- static void DumpString(TString* s, DumpState* D)
- {
- if (s==NULL || getstr(s)==NULL)
- DumpSize(0,D);
- else
- {
- size_t size=s->tsv.len+1; /* include trailing ' ' */
- DumpSize(size,D);
- DumpBlock(getstr(s),size,D);
- }
- }
- static void DumpCode(const Proto* f, DumpState* D)
- {
- DumpInt(f->sizecode,D);
- DumpVector(f->code,f->sizecode,sizeof(*f->code),D);
- }
- static void DumpLocals(const Proto* f, DumpState* D)
- {
- int i,n=f->sizelocvars;
- DumpInt(n,D);
- for (i=0; i<n; i++)
- {
- DumpString(f->locvars[i].varname,D);
- DumpInt(f->locvars[i].startpc,D);
- DumpInt(f->locvars[i].endpc,D);
- }
- }
- static void DumpLines(const Proto* f, DumpState* D)
- {
- DumpInt(f->sizelineinfo,D);
- DumpVector(f->lineinfo,f->sizelineinfo,sizeof(*f->lineinfo),D);
- }
- static void DumpUpvalues(const Proto* f, DumpState* D)
- {
- int i,n=f->sizeupvalues;
- DumpInt(n,D);
- for (i=0; i<n; i++) DumpString(f->upvalues[i],D);
- }
- static void DumpFunction(const Proto* f, const TString* p, DumpState* D);
- static void DumpConstants(const Proto* f, DumpState* D)
- {
- int i,n;
- DumpInt(n=f->sizek,D);
- for (i=0; i<n; i++)
- {
- const TObject* o=&f->k[i];
- DumpByte(ttype(o),D);
- switch (ttype(o))
- {
- case LUA_TNUMBER:
- DumpNumber(nvalue(o),D);
- break;
- case LUA_TSTRING:
- DumpString(tsvalue(o),D);
- break;
- case LUA_TNIL:
- break;
- default:
- lua_assert(0); /* cannot happen */
- break;
- }
- }
- DumpInt(n=f->sizep,D);
- for (i=0; i<n; i++) DumpFunction(f->p[i],f->source,D);
- }
- static void DumpFunction(const Proto* f, const TString* p, DumpState* D)
- {
- DumpString((f->source==p) ? NULL : f->source,D);
- DumpInt(f->lineDefined,D);
- DumpByte(f->nups,D);
- DumpByte(f->numparams,D);
- DumpByte(f->is_vararg,D);
- DumpByte(f->maxstacksize,D);
- DumpLines(f,D);
- DumpLocals(f,D);
- DumpUpvalues(f,D);
- DumpConstants(f,D);
- DumpCode(f,D);
- }
- static void DumpHeader(DumpState* D)
- {
- DumpLiteral(LUA_SIGNATURE,D);
- DumpByte(VERSION,D);
- DumpByte(luaU_endianness(),D);
- DumpByte(sizeof(int),D);
- DumpByte(sizeof(size_t),D);
- DumpByte(sizeof(Instruction),D);
- DumpByte(SIZE_OP,D);
- DumpByte(SIZE_A,D);
- DumpByte(SIZE_B,D);
- DumpByte(SIZE_C,D);
- DumpByte(sizeof(lua_Number),D);
- DumpNumber(TEST_NUMBER,D);
- }
- /*
- ** dump function as precompiled chunk
- */
- void luaU_dump (lua_State* L, const Proto* Main, lua_Chunkwriter w, void* data)
- {
- DumpState D;
- D.L=L;
- D.write=w;
- D.data=data;
- DumpHeader(&D);
- DumpFunction(Main,NULL,&D);
- }