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[Qemu-devel] Patch: block-raw.c for OpenBSD
From: |
Todd T. Fries |
Subject: |
[Qemu-devel] Patch: block-raw.c for OpenBSD |
Date: |
Tue, 20 Mar 2007 21:35:54 -0500 |
User-agent: |
Mutt/1.5.12-2006-07-14 |
This is relative to the 20070319 snapshot, mostly from Enache Adrian,
3n4ch3 at gmail dot com ..
--- block-raw.c.orig Mon Mar 12 16:16:47 2007
+++ block-raw.c Tue Mar 20 19:16:43 2007
@@ -25,7 +25,9 @@
#include "block_int.h"
#include <assert.h>
#ifndef _WIN32
+#ifndef CONFIG_NO_AIO
#include <aio.h>
+#endif
#ifndef QEMU_TOOL
#include "exec-all.h"
@@ -53,10 +55,16 @@
#include <linux/cdrom.h>
#include <linux/fd.h>
#endif
-#ifdef __FreeBSD__
+#ifdef __FreeBSD__
#include <sys/disk.h>
#endif
+#ifdef __OpenBSD__
+#include <sys/ioctl.h>
+#include <sys/disklabel.h>
+#include <sys/dkio.h>
+#endif
+
//#define DEBUG_FLOPPY
#define FTYPE_FILE 0
@@ -158,6 +166,7 @@ static int raw_pwrite(BlockDriverState *
}
/***********************************************************/
+#ifndef CONFIG_NO_AIO
/* Unix AIO using POSIX AIO */
typedef struct RawAIOCB {
@@ -380,6 +389,37 @@ static void raw_aio_cancel(BlockDriverAI
}
}
+# else /* !CONFIG_NO_AIO */
+
+void qemu_aio_init(void)
+{
+}
+
+void qemu_aio_poll(void)
+{
+}
+
+void qemu_aio_flush(void)
+{
+}
+
+void qemu_aio_wait_start(void)
+{
+}
+
+void qemu_aio_wait(void)
+{
+#ifndef QEMU_TOOL
+ qemu_bh_poll();
+#endif
+}
+
+void qemu_aio_wait_end(void)
+{
+}
+
+#endif /* !CONFIG_NO_AIO */
+
static void raw_close(BlockDriverState *bs)
{
BDRVRawState *s = bs->opaque;
@@ -399,8 +439,25 @@ static int raw_truncate(BlockDriverState
return 0;
}
+#ifdef __OpenBSD__
static int64_t raw_getlength(BlockDriverState *bs)
{
+ int fd = ((BDRVRawState*)bs->opaque)->fd;
+ struct stat st;
+ if(fstat(fd, &st))
+ return -1;
+ if(S_ISCHR(st.st_mode) || S_ISBLK(st.st_mode)){
+ struct disklabel dl;
+ if(ioctl(fd, DIOCGDINFO, &dl))
+ return -1;
+ return (uint64_t)dl.d_secsize *
+ dl.d_partitions[DISKPART(st.st_rdev)].p_size;
+ }else
+ return st.st_size;
+}
+#else /* !__OpenBSD__ */
+static int64_t raw_getlength(BlockDriverState *bs)
+{
BDRVRawState *s = bs->opaque;
int fd = s->fd;
int64_t size;
@@ -445,6 +502,7 @@ static int64_t raw_getlength(BlockDrive
}
return size;
}
+#endif
static int raw_create(const char *filename, int64_t total_size,
const char *backing_file, int flags)
@@ -479,11 +537,13 @@ BlockDriver bdrv_raw = {
raw_close,
raw_create,
raw_flush,
-
+
+#ifndef CONFIG_NO_AIO
.bdrv_aio_read = raw_aio_read,
.bdrv_aio_write = raw_aio_write,
.bdrv_aio_cancel = raw_aio_cancel,
.aiocb_size = sizeof(RawAIOCB),
+#endif /* !CONFIG_NO_AIO */
.protocol_name = "file",
.bdrv_pread = raw_pread,
.bdrv_pwrite = raw_pwrite,
@@ -815,11 +875,13 @@ BlockDriver bdrv_host_device = {
raw_close,
NULL,
raw_flush,
-
+
+#ifndef CONFIG_NO_AIO
.bdrv_aio_read = raw_aio_read,
.bdrv_aio_write = raw_aio_write,
.bdrv_aio_cancel = raw_aio_cancel,
.aiocb_size = sizeof(RawAIOCB),
+#endif /* !CONFIG_NO_AIO */
.bdrv_pread = raw_pread,
.bdrv_pwrite = raw_pwrite,
.bdrv_getlength = raw_getlength,
--
Todd Fries .. address@hidden
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