lihao/skynet
1
0
Fork 0
mirror of https://github.com/cloudwu/skynet.git synced 2026-07-23 19:43:09 +00:00
Code Issues Packages Projects Releases Wiki Activity

rewrite SSM and clonefunction

Browse Source
This commit is contained in:
Cloud Wu
2019-04-16 21:16:13 +08:00
committed by 云风
parent 2d6d2c75a4
commit 2ceb642b5d
32 changed files with 934 additions and 645 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
3rd/lua/lstate.c
View File

@@ -70,27 +70,6 @@ typedef struct LG {
#define fromstate(L) (cast(LX *, cast(lu_byte *, (L)) - offsetof(LX, l)))
/*
** Compute an initial seed as random as possible. Rely on Address Space
** Layout Randomization (if present) to increase randomness..
*/
#define addbuff(b,p,e) \
{ size_t t = cast(size_t, e); \
memcpy(b + p, &t, sizeof(t)); p += sizeof(t); }
static unsigned int makeseed (lua_State *L) {
char buff[4 * sizeof(size_t)];
unsigned int h = luai_makeseed();
int p = 0;
addbuff(buff, p, L); /* heap variable */
addbuff(buff, p, &h); /* local variable */
addbuff(buff, p, luaO_nilobject); /* global variable */
addbuff(buff, p, &lua_newstate); /* public function */
lua_assert(p == sizeof(buff));
return luaS_hash(buff, p, h);
}
/*
** set GCdebt to a new value keeping the value (totalbytes + GCdebt)
** invariant (and avoiding underflows in 'totalbytes')
@@ -245,7 +224,7 @@ static void close_state (lua_State *L) {
luaC_freeallobjects(L); /* collect all objects */
if (g->version) /* closing a fully built state? */
luai_userstateclose(L);
luaM_freearray(L, G(L)->strt.hash, G(L)->strt.size);
luaS_collect(g, 1); /* clear short strings */
freestack(L);
lua_assert(gettotalbytes(g) == sizeof(LG));
(*g->frealloc)(g->ud, fromstate(L), sizeof(LG), 0); /* free main block */
@@ -308,11 +287,8 @@ LUA_API lua_State *lua_newstate (lua_Alloc f, void *ud) {
g->frealloc = f;
g->ud = ud;
g->mainthread = L;
g->seed = makeseed(L);
g->gcrunning = 0; /* no GC while building state */
g->GCestimate = 0;
g->strt.size = g->strt.nuse = 0;
g->strt.hash = NULL;
setnilvalue(&g->l_registry);
g->panic = NULL;
g->version = NULL;
@@ -328,6 +304,9 @@ LUA_API lua_State *lua_newstate (lua_Alloc f, void *ud) {
g->gcfinnum = 0;
g->gcpause = LUAI_GCPAUSE;
g->gcstepmul = LUAI_GCMUL;
g->strsave = NULL;
g->strmark = NULL;
g->strfix = NULL;
for (i=0; i < LUA_NUMTAGS; i++) g->mt[i] = NULL;
if (luaD_rawrunprotected(L, f_luaopen, NULL) != LUA_OK) {
/* memory allocation error: free partial state */