From: Peter Lieven <pl@kamp.de>
Date: Sat, 17 May 2014 22:58:18 +0000 (+0200)
Subject: blockdev: add a function to parse enum ids from strings
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=82a402e99f3f8c6177528ad6d561bf07ff6ee606;p=qemu.git

blockdev: add a function to parse enum ids from strings

this adds a generic function to recover the enum id of a parameter
given as a string.

Signed-off-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---

diff --git a/blockdev.c b/blockdev.c
index 7810e9fb68..78b927f045 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -288,6 +288,25 @@ static int parse_block_error_action(const char *buf, bool is_read, Error **errp)
     }
 }
 
+static inline int parse_enum_option(const char *lookup[], const char *buf,
+                                    int max, int def, Error **errp)
+{
+    int i;
+
+    if (!buf) {
+        return def;
+    }
+
+    for (i = 0; i < max; i++) {
+        if (!strcmp(buf, lookup[i])) {
+            return i;
+        }
+    }
+
+    error_setg(errp, "invalid parameter value: %s", buf);
+    return def;
+}
+
 static bool check_throttle_config(ThrottleConfig *cfg, Error **errp)
 {
     if (throttle_conflicting(cfg)) {