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String buffers, part 2e: add serialization string dictionary.

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Sponsored by fmad.io.
This commit is contained in:
Mike Pall
2021-06-07 12:03:22 +02:00
parent 4216bdfb2a
commit ac02a120ef
10 changed files with 214 additions and 65 deletions
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16
src/lj_buf.h
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@@ -27,6 +27,7 @@ typedef struct SBufExt {
MRef bsb; /* Borrowed string buffer. */
};
char *r; /* Read pointer. */
GCRef dict; /* Serialization string dictionary table. */
int depth; /* Remaining recursion depth. */
} SBufExt;
@@ -114,19 +115,17 @@ static LJ_AINLINE void lj_bufx_init(lua_State *L, SBufExt *sbx)
setsbufXL(sbx, L, SBUF_FLAG_EXT);
}
static LJ_AINLINE void lj_bufx_init_borrow(lua_State *L, SBufExt *sbx, SBuf *sb)
static LJ_AINLINE void lj_bufx_set_borrow(lua_State *L, SBufExt *sbx, SBuf *sb)
{
memset(sbx, 0, sizeof(SBufExt));
setsbufXL(sbx, L, SBUF_FLAG_EXT | SBUF_FLAG_BORROW);
setmref(sbx->bsb, sb);
sbx->r = sbx->w = sbx->b = sb->b;
sbx->e = sb->e;
}
static LJ_AINLINE void lj_bufx_init_cow(lua_State *L, SBufExt *sbx,
const char *p, MSize len)
static LJ_AINLINE void lj_bufx_set_cow(lua_State *L, SBufExt *sbx,
const char *p, MSize len)
{
memset(sbx, 0, sizeof(SBufExt));
setsbufXL(sbx, L, SBUF_FLAG_EXT | SBUF_FLAG_COW);
sbx->r = sbx->b = (char *)p;
sbx->w = sbx->e = (char *)p + len;
@@ -142,9 +141,12 @@ static LJ_AINLINE void lj_bufx_reset(SBufExt *sbx)
sbx->r = sbx->w = sbx->b;
}
static LJ_AINLINE void lj_bufx_free(global_State *g, SBufExt *sbx)
static LJ_AINLINE void lj_bufx_free(lua_State *L, SBufExt *sbx)
{
if (!sbufiscow(sbx)) lj_mem_free(g, sbx->b, sbufsz(sbx));
if (!sbufiscow(sbx)) lj_mem_free(G(L), sbx->b, sbufsz(sbx));
setsbufXL(sbx, L, SBUF_FLAG_EXT);
setgcrefnull(sbx->cowref);
sbx->r = sbx->w = sbx->b = sbx->e = NULL;
}
/* Low-level buffer put operations */