qemu-option: Add qemu_config_parse_qdict()

This function basically parses command-line options given as a QDict
replacing a config file.

For instance, the QDict {"section.opt1": 42, "section.opt2": 23}
corresponds to the config file:

[section]
opt1 = 42
opt2 = 23

It is possible to specify multiple sections and also multiple sections
of the same type. On the command line, this looks like the following:

inject-error.0.event=reftable_load,\
inject-error.1.event=l2_load,\
set-state.event=l1_update

This would correspond to the following config file:

[inject-error "inject-error.0"]
event = reftable_load

[inject-error "inject-error.1"]
event = l2_load

[set-state]
event = l1_update

Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/include/qemu/config-file.h b/include/qemu/config-file.h
index 508428ff32..dbd97c4bdb 100644
--- a/include/qemu/config-file.h
+++ b/include/qemu/config-file.h
@@ -4,6 +4,7 @@
 #include <stdio.h>
 #include "qemu/option.h"
 #include "qapi/error.h"
+#include "qapi/qmp/qdict.h"
 
 QemuOptsList *qemu_find_opts(const char *group);
 QemuOptsList *qemu_find_opts_err(const char *group, Error **errp);
@@ -18,6 +19,11 @@ int qemu_config_parse(FILE *fp, QemuOptsList **lists, const char *fname);
 
 int qemu_read_config_file(const char *filename);
 
+/* Parse QDict options as a replacement for a config file (allowing multiple
+   enumerated (0..(n-1)) configuration "sections") */
+void qemu_config_parse_qdict(QDict *options, QemuOptsList **lists,
+                             Error **errp);
+
 /* Read default QEMU config files
  */
 int qemu_read_default_config_files(bool userconfig);