From fdeead0b09188213e51e037edcf9c9daf88d25c4 Mon Sep 17 00:00:00 2001 From: "W. Felix Handte" Date: Wed, 21 Mar 2018 14:49:47 -0400 Subject: Set dictCtx Rather than memcpy'ing Ctx --- lib/lz4frame.c | 9 +++------ lib/lz4hc.c | 1 + 2 files changed, 4 insertions(+), 6 deletions(-) diff --git a/lib/lz4frame.c b/lib/lz4frame.c index 0000023..821cb49 100644 --- a/lib/lz4frame.c +++ b/lib/lz4frame.c @@ -549,12 +549,9 @@ static void LZ4F_applyCDict(void* ctx, LZ4_resetStream_fast((LZ4_stream_t *)ctx); LZ4_attach_dictionary((LZ4_stream_t *)ctx, cdict ? cdict->fastCtx : NULL); } else { - if (cdict) { - memcpy(ctx, cdict->HCCtx, sizeof(*cdict->HCCtx)); - LZ4_setCompressionLevel((LZ4_streamHC_t*)ctx, level); - } else { - LZ4_resetStreamHC((LZ4_streamHC_t*)(ctx), level); - } + LZ4HC_CCtx_internal *internal_ctx = &((LZ4_streamHC_t *)ctx)->internal_donotuse; + LZ4_resetStreamHC((LZ4_streamHC_t*)ctx, level); + internal_ctx->dictCtx = cdict ? &(cdict->HCCtx->internal_donotuse) : NULL; } } diff --git a/lib/lz4hc.c b/lib/lz4hc.c index 6890613..16830c2 100644 --- a/lib/lz4hc.c +++ b/lib/lz4hc.c @@ -729,6 +729,7 @@ void LZ4_resetStreamHC (LZ4_streamHC_t* LZ4_streamHCPtr, int compressionLevel) LZ4_STATIC_ASSERT(sizeof(LZ4HC_CCtx_internal) <= sizeof(size_t) * LZ4_STREAMHCSIZE_SIZET); /* if compilation fails here, LZ4_STREAMHCSIZE must be increased */ DEBUGLOG(4, "LZ4_resetStreamHC(%p, %d)", LZ4_streamHCPtr, compressionLevel); LZ4_streamHCPtr->internal_donotuse.base = NULL; + LZ4_streamHCPtr->internal_donotuse.dictCtx = NULL; LZ4_setCompressionLevel(LZ4_streamHCPtr, compressionLevel); } -- cgit v0.12