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Implement bdrv_refresh_filename

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This commit is contained in:
Vitaliy Filippov
2025-07-20 16:30:01 +03:00
parent 68905cbf41
commit afc97b757b
1 changed files with 31 additions and 2 deletions
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src/client/qemu_driver.c
+31 -2
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@@ -155,16 +155,19 @@ static void qemu_vitastor_unescape(char *src)
// vitastor[:key=value]*
// vitastor[:etcd_host=127.0.0.1]:inode=1:pool=1[:rdma_gid_index=3]
// vitastor:config_path=/etc/vitastor/vitastor.conf:image=testimg
// vitastor://?config_path=/etc/vitastor/vitastor.conf&image=testimg
static void vitastor_parse_filename(const char *filename, QDict *options, Error **errp)
{
const char *start;
char *p, *buf;
if (!strstart(filename, "vitastor:", &start))
int url_style = strstart(filename, "vitastor://?", &start);
if (!url_style && !strstart(filename, "vitastor:", &start))
{
error_setg(errp, "File name must start with 'vitastor:'");
return;
}
char delim = url_style ? '&' : ':';
buf = g_strdup(start);
p = buf;
@@ -184,7 +187,7 @@ static void vitastor_parse_filename(const char *filename, QDict *options, Error
if (name[i] == '_')
name[i] = '-';
qemu_vitastor_unescape(name);
value = qemu_vitastor_next_tok(p, ':', &p);
value = qemu_vitastor_next_tok(p, delim, &p);
qemu_vitastor_unescape(value);
if (!strcmp(name, "inode") ||
!strcmp(name, "pool") ||
@@ -604,6 +607,29 @@ static void vitastor_close(BlockDriverState *bs)
client->last_bitmap = NULL;
}
#if QEMU_VERSION_MAJOR >= 3 || QEMU_VERSION_MAJOR == 2 && QEMU_VERSION_MINOR >= 2
static void vitastor_refresh_filename(BlockDriverState *bs)
{
VitastorClient *client = bs->opaque;
size_t len = 0;
int n = 0;
len = snprintf(bs->exact_filename, sizeof(bs->exact_filename), "vitastor://");
if (len < sizeof(bs->exact_filename))
{
if (client->image)
len += snprintf(bs->exact_filename+len, sizeof(bs->exact_filename)-len, "%cimage=%s", (n++ ? '&' : '?'), client->image);
else
len += snprintf(bs->exact_filename+len, sizeof(bs->exact_filename)-len, "%cpool=%ju&inode=%ju&size=%ju", (n++ ? '&' : '?'), client->pool, client->inode, client->size);
}
if (client->config_path && len < sizeof(bs->exact_filename))
len += snprintf(bs->exact_filename+len, sizeof(bs->exact_filename)-len, "%cconfig_path=%s", (n++ ? '&' : '?'), client->config_path);
if (client->etcd_host && len < sizeof(bs->exact_filename))
len += snprintf(bs->exact_filename+len, sizeof(bs->exact_filename)-len, "%cetcd_host=%s", (n++ ? '&' : '?'), client->etcd_host);
if (client->etcd_prefix && len < sizeof(bs->exact_filename))
len += snprintf(bs->exact_filename+len, sizeof(bs->exact_filename)-len, "%cetcd_prefix=%s", (n++ ? '&' : '?'), client->etcd_prefix);
}
#endif
#if QEMU_VERSION_MAJOR >= 3 || QEMU_VERSION_MAJOR == 2 && QEMU_VERSION_MINOR > 2
static int vitastor_probe_blocksizes(BlockDriverState *bs, BlockSizes *bsz)
{
@@ -1038,6 +1064,9 @@ static BlockDriver bdrv_vitastor = {
.bdrv_get_info = vitastor_get_info,
.bdrv_getlength = vitastor_getlength,
#endif
#if QEMU_VERSION_MAJOR >= 3 || QEMU_VERSION_MAJOR == 2 && QEMU_VERSION_MINOR >= 2
.bdrv_refresh_filename = vitastor_refresh_filename,
#endif
#if QEMU_VERSION_MAJOR >= 3 || QEMU_VERSION_MAJOR == 2 && QEMU_VERSION_MINOR > 2
.bdrv_probe_blocksizes = vitastor_probe_blocksizes,
#endif