Compression algo dependencies, still need hackery...

1 files changed, 46 insertions, 0 deletions

diff --git a/depends/lzma/wrapper/common_internal.c b/depends/lzma/wrapper/common_internal.c
new file mode 100644
index 00000000..c9213ef4
--- /dev/null
+++ b/depends/lzma/wrapper/common_internal.c
@@ -0,0 +1,46 @@
+/*
+ * Written in 2009 by Lloyd Hilaiel
+ *
+ * License
+ *
+ * All the cruft you find here is public domain.  You don't have to credit
+ * anyone to use this code, but my personal request is that you mention
+ * Igor Pavlov for his hard, high quality work.
+ */
+
+#include "common_internal.h"
+
+static void *elzmaAlloc(void *p, size_t size)
+{
+	struct elzma_alloc_struct *as = (struct elzma_alloc_struct *)p;
+	if (as->clientMallocFunc)
+	{
+		return as->clientMallocFunc(as->clientMallocContext, size);
+	}
+	return malloc(size);
+}
+
+static void elzmaFree(void *p, void *address)
+{
+	struct elzma_alloc_struct *as = (struct elzma_alloc_struct *)p;
+	if (as->clientFreeFunc)
+	{
+		as->clientFreeFunc(as->clientMallocContext, address);
+	}
+	else
+	{
+		free(address);
+	}
+}
+
+void init_alloc_struct(struct elzma_alloc_struct *as, elzma_malloc clientMallocFunc,
+					   void *clientMallocContext, elzma_free clientFreeFunc,
+					   void *clientFreeContext)
+{
+	as->Alloc = elzmaAlloc;
+	as->Free = elzmaFree;
+	as->clientMallocFunc = clientMallocFunc;
+	as->clientMallocContext = clientMallocContext;
+	as->clientFreeFunc = clientFreeFunc;
+	as->clientFreeContext = clientFreeContext;
+}