Initial import

1 files changed, 81 insertions, 0 deletions

diff --git a/base/memory.c b/base/memory.c
new file mode 100644
index 00000000..88102d00
--- /dev/null
+++ b/base/memory.c
@@ -0,0 +1,81 @@
+#include <fitz.h>
+
+/* Make this thread local storage if you wish.  */
+
+static void *stdmalloc(fz_memorycontext *mem, int n)
+{
+#if 0
+	void *p = malloc(n);
+	if (!p)
+		fprintf(stderr, "failed to malloc %d bytes\n", n);
+	return p;
+#else
+	return malloc(n);
+#endif
+}
+
+static void *stdrealloc(fz_memorycontext *mem, void *p, int n)
+{
+#if 0
+	void *np = realloc(p, n);
+	if (np == nil)
+		fprintf(stderr, "realloc failed %d nytes", n);
+	else if (np == p)
+		fprintf(stderr, "realloc kept %d\n", n);
+	else
+		fprintf(stderr, "realloc moved %d\n", n);
+	return np;
+#else
+	return realloc(p, n);
+#endif
+}
+
+static void stdfree(fz_memorycontext *mem, void *p)
+{
+	free(p);
+}
+
+static fz_memorycontext defmem = { stdmalloc, stdrealloc, stdfree };
+static fz_memorycontext *curmem = &defmem;
+
+fz_error fz_koutofmem = {
+	.msg	= {"out of memory"}, 
+	.func	= {"<malloc>"},
+	.file	= {"memory.c"},
+	.line	= 0,
+	.frozen = 1
+};
+
+fz_memorycontext *
+fz_currentmemorycontext()
+{
+	return curmem;
+}
+
+void
+fz_setmemorycontext(fz_memorycontext *mem)
+{
+	curmem = mem;
+}
+
+void *
+fz_malloc(int n)
+{
+	fz_memorycontext *mem = fz_currentmemorycontext();
+	return mem->malloc(mem, n);
+}
+
+void *
+fz_realloc(void *p, int n)
+{
+	fz_memorycontext *mem = fz_currentmemorycontext();
+	return mem->realloc(mem, p, n);
+}
+
+void
+fz_free(void *p)
+{
+	fz_memorycontext *mem = fz_currentmemorycontext();
+	mem->free(mem, p);
+}
+