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author Vas Crabb <cuavas@users.noreply.github.com>2021-08-22 09:06:15 +1000
committer GitHub <noreply@github.com>2021-08-22 09:06:15 +1000
commite8bbea1fc6e94e14768509d322f6c624403ffb36 (patch)
tree74dd1606a900d83de8aecff17a6737af4113308d /src/lib/formats/pc_dsk.cpp
parente319bde5fc3696d7f48f62b15b6366c4377fe5d1 (diff)
formats, osd, util: Started refactoring file I/O stuff. (#8456)
Added more modern generic I/O interfaces with implementation backed by stdio, osd_file and core_file, replacing io_generic. Also replaced core_file's build-in zlib compression with a filter. unzip.cpp, un7z.cpp: Added option to supply abstract I/O interface rather than filename. Converted osd_file, core_file, archive_file, chd_file and device_image_interface to use std::error_condition rather than their own error enums. Allow mounting TI-99 RPK from inside archives.
Diffstat (limited to 'src/lib/formats/pc_dsk.cpp')
-rw-r--r--src/lib/formats/pc_dsk.cpp13
1 files changed, 9 insertions, 4 deletions
diff --git a/src/lib/formats/pc_dsk.cpp b/src/lib/formats/pc_dsk.cpp
index c814afbe6dc..6fe2a82196a 100644
--- a/src/lib/formats/pc_dsk.cpp
+++ b/src/lib/formats/pc_dsk.cpp
@@ -8,10 +8,12 @@
*********************************************************************/
+#include "formats/pc_dsk.h"
+
+#include "ioprocs.h"
+
#include <cstring>
-#include <cassert>
-#include "formats/pc_dsk.h"
pc_format::pc_format() : upd765_format(formats)
{
@@ -32,9 +34,12 @@ const char *pc_format::extensions() const
return "dsk,ima,img,ufi,360";
}
-int pc_format::identify(io_generic *io, uint32_t form_factor, const std::vector<uint32_t> &variants)
+int pc_format::identify(util::random_read &io, uint32_t form_factor, const std::vector<uint32_t> &variants)
{
- uint64_t size = io_generic_size(io);
+ uint64_t size;
+ if (io.length(size)) {
+ return 0;
+ }
/* some 360K images have a 512-byte header */
if (size == 368640 + 0x200) {