change block layer to support both QemuOpts and QEMUOptionParamter
Change block layer to support both QemuOpts and QEMUOptionParameter.
After this patch, it will change backend drivers one by one. At the end,
QEMUOptionParameter will be removed and only QemuOpts is kept.
Signed-off-by: Dong Xu Wang <wdongxu@linux.vnet.ibm.com>
Signed-off-by: Chunyan Liu <cyliu@suse.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
diff --git a/qemu-img.c b/qemu-img.c
index aa89ba2..8acdcca 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -271,7 +271,7 @@
static int print_block_option_help(const char *filename, const char *fmt)
{
BlockDriver *drv, *proto_drv;
- QEMUOptionParameter *create_options = NULL;
+ QemuOptsList *create_opts = NULL;
/* Find driver and parse its options */
drv = bdrv_find_format(fmt);
@@ -280,22 +280,21 @@
return 1;
}
- create_options = append_option_parameters(create_options,
- drv->create_options);
-
+ create_opts = qemu_opts_append(create_opts, drv->create_opts,
+ drv->create_options);
if (filename) {
proto_drv = bdrv_find_protocol(filename, true);
if (!proto_drv) {
error_report("Unknown protocol '%s'", filename);
- free_option_parameters(create_options);
+ qemu_opts_free(create_opts);
return 1;
}
- create_options = append_option_parameters(create_options,
- proto_drv->create_options);
+ create_opts = qemu_opts_append(create_opts, proto_drv->create_opts,
+ proto_drv->create_options);
}
- print_option_help(create_options);
- free_option_parameters(create_options);
+ qemu_opts_print_help(create_opts);
+ qemu_opts_free(create_opts);
return 0;
}
@@ -349,19 +348,19 @@
return NULL;
}
-static int add_old_style_options(const char *fmt, QEMUOptionParameter *list,
+static int add_old_style_options(const char *fmt, QemuOpts *opts,
const char *base_filename,
const char *base_fmt)
{
if (base_filename) {
- if (set_option_parameter(list, BLOCK_OPT_BACKING_FILE, base_filename)) {
+ if (qemu_opt_set(opts, BLOCK_OPT_BACKING_FILE, base_filename)) {
error_report("Backing file not supported for file format '%s'",
fmt);
return -1;
}
}
if (base_fmt) {
- if (set_option_parameter(list, BLOCK_OPT_BACKING_FMT, base_fmt)) {
+ if (qemu_opt_set(opts, BLOCK_OPT_BACKING_FMT, base_fmt)) {
error_report("Backing file format not supported for file "
"format '%s'", fmt);
return -1;
@@ -1191,8 +1190,9 @@
size_t bufsectors = IO_BUF_SIZE / BDRV_SECTOR_SIZE;
const uint8_t *buf1;
BlockDriverInfo bdi;
- QEMUOptionParameter *param = NULL, *create_options = NULL;
- QEMUOptionParameter *out_baseimg_param;
+ QemuOpts *opts = NULL;
+ QemuOptsList *create_opts = NULL;
+ const char *out_baseimg_param;
char *options = NULL;
const char *snapshot_name = NULL;
int min_sparse = 8; /* Need at least 4k of zeros for sparse detection */
@@ -1381,40 +1381,36 @@
goto out;
}
- create_options = append_option_parameters(create_options,
- drv->create_options);
- create_options = append_option_parameters(create_options,
- proto_drv->create_options);
+ create_opts = qemu_opts_append(create_opts, drv->create_opts,
+ drv->create_options);
+ create_opts = qemu_opts_append(create_opts, proto_drv->create_opts,
+ proto_drv->create_options);
- if (options) {
- param = parse_option_parameters(options, create_options, param);
- if (param == NULL) {
- error_report("Invalid options for file format '%s'.", out_fmt);
- ret = -1;
- goto out;
- }
- } else {
- param = parse_option_parameters("", create_options, param);
+ opts = qemu_opts_create(create_opts, NULL, 0, &error_abort);
+ if (options && qemu_opts_do_parse(opts, options, NULL)) {
+ error_report("Invalid options for file format '%s'", out_fmt);
+ ret = -1;
+ goto out;
}
- set_option_parameter_int(param, BLOCK_OPT_SIZE, total_sectors * 512);
- ret = add_old_style_options(out_fmt, param, out_baseimg, NULL);
+ qemu_opt_set_number(opts, BLOCK_OPT_SIZE, total_sectors * 512);
+ ret = add_old_style_options(out_fmt, opts, out_baseimg, NULL);
if (ret < 0) {
goto out;
}
/* Get backing file name if -o backing_file was used */
- out_baseimg_param = get_option_parameter(param, BLOCK_OPT_BACKING_FILE);
+ out_baseimg_param = qemu_opt_get(opts, BLOCK_OPT_BACKING_FILE);
if (out_baseimg_param) {
- out_baseimg = out_baseimg_param->value.s;
+ out_baseimg = out_baseimg_param;
}
/* Check if compression is supported */
if (compress) {
- QEMUOptionParameter *encryption =
- get_option_parameter(param, BLOCK_OPT_ENCRYPT);
- QEMUOptionParameter *preallocation =
- get_option_parameter(param, BLOCK_OPT_PREALLOC);
+ bool encryption =
+ qemu_opt_get_bool(opts, BLOCK_OPT_ENCRYPT, false);
+ const char *preallocation =
+ qemu_opt_get(opts, BLOCK_OPT_PREALLOC);
if (!drv->bdrv_write_compressed) {
error_report("Compression not supported for this file format");
@@ -1422,15 +1418,15 @@
goto out;
}
- if (encryption && encryption->value.n) {
+ if (encryption) {
error_report("Compression and encryption not supported at "
"the same time");
ret = -1;
goto out;
}
- if (preallocation && preallocation->value.s
- && strcmp(preallocation->value.s, "off"))
+ if (preallocation
+ && strcmp(preallocation, "off"))
{
error_report("Compression and preallocation not supported at "
"the same time");
@@ -1441,7 +1437,7 @@
if (!skip_create) {
/* Create the new image */
- ret = bdrv_create(drv, out_filename, param, &local_err);
+ ret = bdrv_create(drv, out_filename, NULL, opts, &local_err);
if (ret < 0) {
error_report("%s: error while converting %s: %s",
out_filename, out_fmt, error_get_pretty(local_err));
@@ -1706,8 +1702,8 @@
qemu_progress_print(100, 0);
}
qemu_progress_end();
- free_option_parameters(create_options);
- free_option_parameters(param);
+ qemu_opts_del(opts);
+ qemu_opts_free(create_opts);
qemu_vfree(buf);
if (sn_opts) {
qemu_opts_del(sn_opts);
@@ -2698,7 +2694,8 @@
{
int c, ret = 0;
char *options = NULL;
- QEMUOptionParameter *create_options = NULL, *options_param = NULL;
+ QemuOptsList *create_opts = NULL;
+ QemuOpts *opts = NULL;
const char *fmt = NULL, *filename;
bool quiet = false;
BlockDriverState *bs = NULL;
@@ -2769,17 +2766,16 @@
goto out;
}
- create_options = append_option_parameters(create_options,
- bs->drv->create_options);
- options_param = parse_option_parameters(options, create_options,
- options_param);
- if (options_param == NULL) {
+ create_opts = qemu_opts_append(create_opts, bs->drv->create_opts,
+ bs->drv->create_options);
+ opts = qemu_opts_create(create_opts, NULL, 0, &error_abort);
+ if (options && qemu_opts_do_parse(opts, options, NULL)) {
error_report("Invalid options for file format '%s'", fmt);
ret = -1;
goto out;
}
- ret = bdrv_amend_options(bs, options_param);
+ ret = bdrv_amend_options(bs, NULL, opts);
if (ret < 0) {
error_report("Error while amending options: %s", strerror(-ret));
goto out;
@@ -2789,8 +2785,8 @@
if (bs) {
bdrv_unref(bs);
}
- free_option_parameters(create_options);
- free_option_parameters(options_param);
+ qemu_opts_del(opts);
+ qemu_opts_free(create_opts);
g_free(options);
if (ret) {
