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[Qemu-devel] [PATCH 1/2] vmdk: convert error reporting
From: |
Fam Zheng |
Subject: |
[Qemu-devel] [PATCH 1/2] vmdk: convert error reporting |
Date: |
Thu, 10 Oct 2013 15:20:55 +0800 |
Convert "fprintf(stderr,..." to error API by passing around errp to
functions those want to report error message.
There are 2 more "fprintf(stderr,..." remaining in read/write code path.
Signed-off-by: Fam Zheng <address@hidden>
---
block/vmdk.c | 42 +++++++++++++++++++++---------------------
1 file changed, 21 insertions(+), 21 deletions(-)
diff --git a/block/vmdk.c b/block/vmdk.c
index 5d56e31..a98ad23 100644
--- a/block/vmdk.c
+++ b/block/vmdk.c
@@ -483,7 +483,7 @@ static int vmdk_init_tables(BlockDriverState *bs,
VmdkExtent *extent)
static int vmdk_open_vmfs_sparse(BlockDriverState *bs,
BlockDriverState *file,
- int flags)
+ int flags, Error **errp)
{
int ret;
uint32_t magic;
@@ -514,11 +514,11 @@ static int vmdk_open_vmfs_sparse(BlockDriverState *bs,
}
static int vmdk_open_desc_file(BlockDriverState *bs, int flags,
- uint64_t desc_offset);
+ uint64_t desc_offset, Error **errp);
static int vmdk_open_vmdk4(BlockDriverState *bs,
BlockDriverState *file,
- int flags)
+ int flags, Error **errp)
{
int ret;
uint32_t magic;
@@ -534,7 +534,7 @@ static int vmdk_open_vmdk4(BlockDriverState *bs,
if (header.capacity == 0) {
uint64_t desc_offset = le64_to_cpu(header.desc_offset);
if (desc_offset) {
- return vmdk_open_desc_file(bs, flags, desc_offset << 9);
+ return vmdk_open_desc_file(bs, flags, desc_offset << 9, errp);
}
}
@@ -663,7 +663,7 @@ static int vmdk_parse_description(const char *desc, const
char *opt_name,
/* Open an extent file and append to bs array */
static int vmdk_open_sparse(BlockDriverState *bs,
BlockDriverState *file,
- int flags)
+ int flags, Error **errp)
{
uint32_t magic;
@@ -674,10 +674,10 @@ static int vmdk_open_sparse(BlockDriverState *bs,
magic = be32_to_cpu(magic);
switch (magic) {
case VMDK3_MAGIC:
- return vmdk_open_vmfs_sparse(bs, file, flags);
+ return vmdk_open_vmfs_sparse(bs, file, flags, errp);
break;
case VMDK4_MAGIC:
- return vmdk_open_vmdk4(bs, file, flags);
+ return vmdk_open_vmdk4(bs, file, flags, errp);
break;
default:
return -EMEDIUMTYPE;
@@ -686,7 +686,7 @@ static int vmdk_open_sparse(BlockDriverState *bs,
}
static int vmdk_parse_extents(const char *desc, BlockDriverState *bs,
- const char *desc_file_path)
+ const char *desc_file_path, Error **errp)
{
int ret;
char access[11];
@@ -748,13 +748,13 @@ static int vmdk_parse_extents(const char *desc,
BlockDriverState *bs,
extent->flat_start_offset = flat_offset << 9;
} else if (!strcmp(type, "SPARSE") || !strcmp(type, "VMFSSPARSE")) {
/* SPARSE extent and VMFSSPARSE extent are both "COWD" sparse
file*/
- ret = vmdk_open_sparse(bs, extent_file, bs->open_flags);
+ ret = vmdk_open_sparse(bs, extent_file, bs->open_flags, errp);
if (ret) {
bdrv_unref(extent_file);
return ret;
}
} else {
- fprintf(stderr,
+ error_setg(errp,
"VMDK: Not supported extent type \"%s\""".\n", type);
return -ENOTSUP;
}
@@ -769,7 +769,7 @@ next_line:
}
static int vmdk_open_desc_file(BlockDriverState *bs, int flags,
- uint64_t desc_offset)
+ uint64_t desc_offset, Error **errp)
{
int ret;
char *buf = NULL;
@@ -798,13 +798,13 @@ static int vmdk_open_desc_file(BlockDriverState *bs, int
flags,
strcmp(ct, "vmfsSparse") &&
strcmp(ct, "twoGbMaxExtentSparse") &&
strcmp(ct, "twoGbMaxExtentFlat")) {
- fprintf(stderr,
+ error_setg(errp,
"VMDK: Not supported image type \"%s\""".\n", ct);
ret = -ENOTSUP;
goto exit;
}
s->desc_offset = 0;
- ret = vmdk_parse_extents(buf, bs, bs->file->filename);
+ ret = vmdk_parse_extents(buf, bs, bs->file->filename, errp);
exit:
g_free(buf);
return ret;
@@ -816,10 +816,10 @@ static int vmdk_open(BlockDriverState *bs, QDict
*options, int flags,
int ret;
BDRVVmdkState *s = bs->opaque;
- if (vmdk_open_sparse(bs, bs->file, flags) == 0) {
+ if (vmdk_open_sparse(bs, bs->file, flags, errp) == 0) {
s->desc_offset = 0x200;
} else {
- ret = vmdk_open_desc_file(bs, flags, 0);
+ ret = vmdk_open_desc_file(bs, flags, 0, errp);
if (ret) {
goto fail;
}
@@ -1517,12 +1517,12 @@ static int vmdk_create_extent(const char *filename,
int64_t filesize,
}
static int filename_decompose(const char *filename, char *path, char *prefix,
- char *postfix, size_t buf_len)
+ char *postfix, size_t buf_len, Error **errp)
{
const char *p, *q;
if (filename == NULL || !strlen(filename)) {
- fprintf(stderr, "Vmdk: no filename provided.\n");
+ error_setg(errp, "Vmdk: no filename provided");
return VMDK_ERROR;
}
p = strrchr(filename, '/');
@@ -1597,7 +1597,7 @@ static int vmdk_create(const char *filename,
QEMUOptionParameter *options,
"ddb.adapterType = \"%s\"\n";
Error *local_err = NULL;
- if (filename_decompose(filename, path, prefix, postfix, PATH_MAX)) {
+ if (filename_decompose(filename, path, prefix, postfix, PATH_MAX, errp)) {
return -EINVAL;
}
/* Read out options */
@@ -1623,7 +1623,7 @@ static int vmdk_create(const char *filename,
QEMUOptionParameter *options,
strcmp(adapter_type, "buslogic") &&
strcmp(adapter_type, "lsilogic") &&
strcmp(adapter_type, "legacyESX")) {
- fprintf(stderr, "VMDK: Unknown adapter type: '%s'.\n", adapter_type);
+ error_setg(errp, "VMDK: Unknown adapter type: '%s'", adapter_type);
return -EINVAL;
}
if (strcmp(adapter_type, "ide") != 0) {
@@ -1639,7 +1639,7 @@ static int vmdk_create(const char *filename,
QEMUOptionParameter *options,
strcmp(fmt, "twoGbMaxExtentSparse") &&
strcmp(fmt, "twoGbMaxExtentFlat") &&
strcmp(fmt, "streamOptimized")) {
- fprintf(stderr, "VMDK: Unknown subformat: %s\n", fmt);
+ error_setg(errp, "VMDK: Unknown subformat: %s", fmt);
return -EINVAL;
}
split = !(strcmp(fmt, "twoGbMaxExtentFlat") &&
@@ -1653,7 +1653,7 @@ static int vmdk_create(const char *filename,
QEMUOptionParameter *options,
desc_extent_line = "RW %lld SPARSE \"%s\"\n";
}
if (flat && backing_file) {
- /* not supporting backing file for flat image */
+ error_setg(errp, "flat image can't have backing file");
return -ENOTSUP;
}
if (backing_file) {
--
1.8.3.1