X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=lzma%2Flz%2Flz_encoder.c;fp=lzma%2Flz%2Flz_encoder.c;h=9a74b7c47ce8d335465a895a0a384602b59cdd8c;hb=a949e03f1030e8bacbd4aa6ca7143439c1c1d33b;hp=5a2be798fd8e9918e3d7c296b98f75871782746f;hpb=a9e7811b3d308a6987227a6f30d739971b8d17c8;p=zpackage

diff --git a/lzma/lz/lz_encoder.c b/lzma/lz/lz_encoder.c
index 5a2be79..9a74b7c 100644
--- a/lzma/lz/lz_encoder.c
+++ b/lzma/lz/lz_encoder.c
@@ -23,7 +23,7 @@
 #include "memcmplen.h"
 
 
-struct lzma_coder_s {
+typedef struct {
 	/// LZ-based encoder e.g. LZMA
 	lzma_lz_encoder lz;
 
@@ -32,7 +32,7 @@ struct lzma_coder_s {
 
 	/// Next coder in the chain
 	lzma_next_coder next;
-};
+} lzma_coder;
 
 
 /// \brief      Moves the data in the input window to free space for new data
@@ -157,12 +157,14 @@ fill_window(lzma_coder *coder, const lzma_allocator *allocator,
 
 
 static lzma_ret
-lz_encode(lzma_coder *coder, const lzma_allocator *allocator,
+lz_encode(void *coder_ptr, const lzma_allocator *allocator,
 		const uint8_t *restrict in, size_t *restrict in_pos,
 		size_t in_size,
 		uint8_t *restrict out, size_t *restrict out_pos,
 		size_t out_size, lzma_action action)
 {
+	lzma_coder *coder = coder_ptr;
+
 	while (*out_pos < out_size
 			&& (*in_pos < in_size || action != LZMA_RUN)) {
 		// Read more data to coder->mf.buffer if needed.
@@ -481,8 +483,10 @@ lzma_lz_encoder_memusage(const lzma_lz_options *lz_options)
 
 
 static void
-lz_encoder_end(lzma_coder *coder, const lzma_allocator *allocator)
+lz_encoder_end(void *coder_ptr, const lzma_allocator *allocator)
 {
+	lzma_coder *coder = coder_ptr;
+
 	lzma_next_end(&coder->next, allocator);
 
 	lzma_free(coder->mf.son, allocator);
@@ -500,10 +504,12 @@ lz_encoder_end(lzma_coder *coder, const lzma_allocator *allocator)
 
 
 static lzma_ret
-lz_encoder_update(lzma_coder *coder, const lzma_allocator *allocator,
+lz_encoder_update(void *coder_ptr, const lzma_allocator *allocator,
 		const lzma_filter *filters_null lzma_attribute((__unused__)),
 		const lzma_filter *reversed_filters)
 {
+	lzma_coder *coder = coder_ptr;
+
 	if (coder->lz.options_update == NULL)
 		return LZMA_PROG_ERROR;
 
@@ -528,50 +534,51 @@ lzma_lz_encoder_init(lzma_next_coder *next, const lzma_allocator *allocator,
 #endif
 
 	// Allocate and initialize the base data structure.
-	if (next->coder == NULL) {
-		next->coder = lzma_alloc(sizeof(lzma_coder), allocator);
-		if (next->coder == NULL)
+	lzma_coder *coder = next->coder;
+	if (coder == NULL) {
+		coder = lzma_alloc(sizeof(lzma_coder), allocator);
+		if (coder == NULL)
 			return LZMA_MEM_ERROR;
 
+		next->coder = coder;
 		next->code = &lz_encode;
 		next->end = &lz_encoder_end;
 		next->update = &lz_encoder_update;
 
-		next->coder->lz.coder = NULL;
-		next->coder->lz.code = NULL;
-		next->coder->lz.end = NULL;
+		coder->lz.coder = NULL;
+		coder->lz.code = NULL;
+		coder->lz.end = NULL;
 
 		// mf.size is initialized to silence Valgrind
 		// when used on optimized binaries (GCC may reorder
 		// code in a way that Valgrind gets unhappy).
-		next->coder->mf.buffer = NULL;
-		next->coder->mf.size = 0;
-		next->coder->mf.hash = NULL;
-		next->coder->mf.son = NULL;
-		next->coder->mf.hash_count = 0;
-		next->coder->mf.sons_count = 0;
-
-		next->coder->next = LZMA_NEXT_CODER_INIT;
+		coder->mf.buffer = NULL;
+		coder->mf.size = 0;
+		coder->mf.hash = NULL;
+		coder->mf.son = NULL;
+		coder->mf.hash_count = 0;
+		coder->mf.sons_count = 0;
+
+		coder->next = LZMA_NEXT_CODER_INIT;
 	}
 
 	// Initialize the LZ-based encoder.
 	lzma_lz_options lz_options;
-	return_if_error(lz_init(&next->coder->lz, allocator,
+	return_if_error(lz_init(&coder->lz, allocator,
 			filters[0].options, &lz_options));
 
-	// Setup the size information into next->coder->mf and deallocate
+	// Setup the size information into coder->mf and deallocate
 	// old buffers if they have wrong size.
-	if (lz_encoder_prepare(&next->coder->mf, allocator, &lz_options))
+	if (lz_encoder_prepare(&coder->mf, allocator, &lz_options))
 		return LZMA_OPTIONS_ERROR;
 
 	// Allocate new buffers if needed, and do the rest of
 	// the initialization.
-	if (lz_encoder_init(&next->coder->mf, allocator, &lz_options))
+	if (lz_encoder_init(&coder->mf, allocator, &lz_options))
 		return LZMA_MEM_ERROR;
 
 	// Initialize the next filter in the chain, if any.
-	return lzma_next_filter_init(&next->coder->next, allocator,
-			filters + 1);
+	return lzma_next_filter_init(&coder->next, allocator, filters + 1);
 }