X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=visor;a=blobdiff_plain;f=libvisor%2Fsrc%2Fvisor.c;h=af79b4a5b6ad7ba470ebb62614bdd84730fd4643;hp=c6388afee53d3c1343c17ad2da41e3cb14ed446b;hb=4f957b16f77eb7761afd9e0b9064c7f08deb45be;hpb=dc83bdff56d4dd7454559f5e918652f32f7e9d6d

diff --git a/libvisor/src/visor.c b/libvisor/src/visor.c
index c6388af..af79b4a 100644
--- a/libvisor/src/visor.c
+++ b/libvisor/src/visor.c
@@ -1,2 +1,72 @@
+#include "vilibc.h"
 #include "visor.h"
+#include "vimpl.h"
 
+#define vi_malloc(s)	vi->mm.malloc(s)
+#define vi_free(p)		vi->mm.free(p)
+
+#ifdef HAVE_LIBC
+static const struct vi_alloc stdalloc = { malloc, free, realloc };
+#endif
+
+struct visor *vi_create(struct vi_alloc *mm)
+{
+	struct visor *vi;
+
+#ifdef HAVE_LIBC
+	if(!mm) mm = &stdalloc;
+#else
+	if(!mm) return 0;
+#endif
+
+	if(!(vi = mm->malloc(sizeof *vi))) {
+		return 0;
+	}
+	memset(vi, 0, sizeof *vi);
+	vi->mm = *mm;
+
+	return vi;
+}
+
+void vi_destroy(struct visor *vi)
+{
+	while(vi->buflist) {
+		vi_delete_buf(vi, vi->buflist);
+	}
+	vi_free(vi);
+}
+
+void vi_set_fileops(struct visor *vi, struct vi_fileops *fop)
+{
+	vi->fop = *fop;
+}
+
+struct vi_buffer *vi_new_buf(struct visor *vi, const char *path)
+{
+	struct vi_buffer *nb;
+
+	if(!(nb = vi_malloc(sizeof *nb))) {
+		vi_error(vi, "failed to allocate new buffer\n");
+		return 0;
+	}
+	memset(nb, 0, sizeof *nb);
+
+	if(path) {
+		if(vi_buf_read(nb, path) == -1) {
+			vi_free(nb);
+			return 0;
+		}
+	}
+
+	if(vi->buflist) {
+		struct vi_buffer *last = vi->buflist->prev;
+		nb->prev = last;
+		nb->next = vi->buflist;
+		last->next = nb;
+		vi->buflist->prev = nb;
+	} else {
+		nb->next = nb->prev = nb;
+		vi->buflist = nb;
+	}
+	return nb;
+}