QemuOpts: add some functions

qemu_opt_foreach: loop over all QemuOpts entries.
qemu_opts_id: return QemuOpts id.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Message-Id:

diff --git a/qemu-option.c b/qemu-option.c
index 591d178999d380d2008e07b741cdbc5513193d18..7164ee8da27089fa6108d848292909b87e668e61 100644 (file)
--- a/qemu-option.c
+++ b/qemu-option.c
@@ -607,6 +607,20 @@ int qemu_opt_set(QemuOpts *opts, const char *name, const char *value)
     return 0;
 }
 
+int qemu_opt_foreach(QemuOpts *opts, qemu_opt_loopfunc func, void *opaque,
+                     int abort_on_failure)
+{
+    QemuOpt *opt;
+    int rc = 0;
+
+    TAILQ_FOREACH(opt, &opts->head, next) {
+        rc = func(opt->name, opt->str, opaque);
+        if (abort_on_failure  &&  rc != 0)
+            break;
+    }
+    return rc;
+}
+
 QemuOpts *qemu_opts_find(QemuOptsList *list, const char *id)
 {
     QemuOpts *opts;
@@ -663,6 +677,11 @@ int qemu_opts_set(QemuOptsList *list, const char *id,
     return qemu_opt_set(opts, name, value);
 }
 
+const char *qemu_opts_id(QemuOpts *opts)
+{
+    return opts->id;
+}
+
 void qemu_opts_del(QemuOpts *opts)
 {
     QemuOpt *opt;

diff --git a/qemu-option.h b/qemu-option.h
index 428c947946719f5bd0ee60f2c6629a0f05515796..56c7eac07d94e3744d6fd97b43a0d0ff17eac57c 100644 (file)
--- a/qemu-option.h
+++ b/qemu-option.h
@@ -104,11 +104,15 @@ int qemu_opt_get_bool(QemuOpts *opts, const char *name, int defval);
 uint64_t qemu_opt_get_number(QemuOpts *opts, const char *name, uint64_t defval);
 uint64_t qemu_opt_get_size(QemuOpts *opts, const char *name, uint64_t defval);
 int qemu_opt_set(QemuOpts *opts, const char *name, const char *value);
+typedef int (*qemu_opt_loopfunc)(const char *name, const char *value, void *opaque);
+int qemu_opt_foreach(QemuOpts *opts, qemu_opt_loopfunc func, void *opaque,
+                     int abort_on_failure);
 
 QemuOpts *qemu_opts_find(QemuOptsList *list, const char *id);
 QemuOpts *qemu_opts_create(QemuOptsList *list, const char *id, int fail_if_exists);
 int qemu_opts_set(QemuOptsList *list, const char *id,
                   const char *name, const char *value);
+const char *qemu_opts_id(QemuOpts *opts);
 void qemu_opts_del(QemuOpts *opts);
 QemuOpts *qemu_opts_parse(QemuOptsList *list, const char *params, const char *firstname);