6:37 a.m.
---
configure.ac | 1 +
plugins/file/Makefile.am | 2 ++
plugins/file/file.c | 23 ++++++++++++++++++-----
TODO | 8 +++++---
4 files changed, 26 insertions(+), 8 deletions(-)
diff --git a/configure.ac b/configure.ac
index faae1ca7..7060f445 100644
--- a/configure.ac
+++ b/configure.ac
@@ -322,6 +322,7 @@ AC_CHECK_HEADERS([\
stdatomic.h \
syslog.h \
sys/endian.h \
+ sys/ioctl.h \
sys/mman.h \
sys/prctl.h \
sys/procctl.h \
diff --git a/plugins/file/Makefile.am b/plugins/file/Makefile.am
index a067d0fc..24c443c1 100644
--- a/plugins/file/Makefile.am
+++ b/plugins/file/Makefile.am
@@ -43,6 +43,7 @@ nbdkit_file_plugin_la_SOURCES = \
nbdkit_file_plugin_la_CPPFLAGS = \
-I$(top_srcdir)/include \
-I$(top_srcdir)/common/include \
+ -I$(top_srcdir)/common/replacements \
-I$(top_srcdir)/common/utils \
$(NULL)
nbdkit_file_plugin_la_CFLAGS = $(WARNINGS_CFLAGS)
@@ -52,6 +53,7 @@ nbdkit_file_plugin_la_LDFLAGS = \
$(NULL)
nbdkit_file_plugin_la_LIBADD = \
$(top_builddir)/common/utils/libutils.la \
+ $(top_builddir)/common/replacements/libcompat.la \
$(IMPORT_LIBRARY_ON_WINDOWS) \
$(NULL)
diff --git a/plugins/file/file.c b/plugins/file/file.c
index 08418194..b8c72e77 100644
--- a/plugins/file/file.c
+++ b/plugins/file/file.c
@@ -39,10 +39,13 @@
#include <inttypes.h>
#include <fcntl.h>
#include <unistd.h>
+#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
+
+#ifdef HAVE_SYS_IOCTL_H
#include <sys/ioctl.h>
-#include <errno.h>
+#endif
#include <pthread.h>
@@ -59,10 +62,10 @@
#include "cleanup.h"
#include "isaligned.h"
-
-#ifndef HAVE_FDATASYNC
-#define fdatasync fsync
-#endif
+#include "fdatasync.h"
+#include "pread.h"
+#include "pwrite.h"
+#include "windows-compat.h"
static char *filename = NULL;
static char *directory = NULL;
@@ -116,6 +119,7 @@ file_config (const char *key, const char *value)
if (!filename)
return -1;
}
+#ifndef WIN32
else if (strcmp (key, "directory") == 0 ||
strcmp (key, "dir") == 0) {
free (directory);
@@ -123,6 +127,7 @@ file_config (const char *key, const char *value)
if (!directory)
return -1;
}
+#endif
else if (strcmp (key, "fadvise") == 0) {
/* As this is a hint, if the kernel doesn't support the feature
* ignore the parameter.
@@ -263,6 +268,7 @@ file_open (int readonly)
int dfd = -1;
if (directory) {
+#ifndef WIN32
file = nbdkit_export_name ();
if (strchr (file, '/')) {
nbdkit_error ("exportname cannot contain /");
@@ -274,6 +280,9 @@ file_open (int readonly)
nbdkit_error ("open %s: %m", directory);
return NULL;
}
+#else
+ abort ();
+#endif
}
else
file = filename;
@@ -290,7 +299,11 @@ file_open (int readonly)
else
flags |= O_RDWR;
+#ifndef WIN32
h->fd = openat (dfd, file, flags);
+#else
+ h->fd = open (file, flags);
+#endif
if (h->fd == -1) {
nbdkit_error ("openat: %s: %m", file);
if (dfd != -1)
diff --git a/TODO b/TODO
index c3314d37..b2b89670 100644
--- a/TODO
+++ b/TODO
@@ -325,9 +325,11 @@ Currently many features are missing, including:
* For possible Unix domain socket support in future see:
https://devblogs.microsoft.com/commandline/af_unix-comes-to-windows/
-* The file plugin. The current file plugin is essentially POSIX-only.
- We would like to eventually write an alternate file plugin which
- uses Windows APIs.
+* The current file plugin works but has limited features and doesn't
+ use the best native APIs. It's worth considering writing an
+ alternate implementation which is used for Windows and uses all
+ native APIs and features. Also this should be extended to allow
+ exporting block devices.
* Many other plugins and filters.
--
2.27.0