MINOR: proxy: make pr_mode enum bitfield compatible

Current pr_mode enum is a regular enum because a proxy only supports one
mode at a time. However it can be handy for a function to be given a
list of compatible modes for a proxy, and we can't do that using a
bitfield because pr_mode is not bitfield compatible (values share
the same bits).

In this patch we manually define pr_mode values so that they are all
using separate bits and allows a function to take a bitfield of
compatible modes as parameter.

diff --git a/include/haproxy/proxy-t.h b/include/haproxy/proxy-t.h
index d243d072e874b4202f9418b70b3669d5f7628eb7..407a999472ce6826a9a24d6eac9a78d4426a54af 100644 (file)
--- a/include/haproxy/proxy-t.h
+++ b/include/haproxy/proxy-t.h
@@ -45,15 +45,19 @@
 #include <haproxy/uri_auth-t.h>
 #include <haproxy/http_ext-t.h>
 
-/* values for proxy->mode */
+/* values for proxy->mode, only one value per proxy.
+ *
+ * values are bitfield compatible so that functions may
+ * take a bitfield of compatible modes as parameter
+ */
 enum pr_mode {
-       PR_MODE_TCP = 0,
-       PR_MODE_HTTP,
-       PR_MODE_CLI,
-       PR_MODE_SYSLOG,
-       PR_MODE_PEERS,
-       PR_MODE_SPOP,
-       PR_MODES
+       PR_MODES       = 0x00,
+       PR_MODE_TCP    = 0x01,
+       PR_MODE_HTTP   = 0x02,
+       PR_MODE_CLI    = 0x04,
+       PR_MODE_SYSLOG = 0x08,
+       PR_MODE_PEERS  = 0x10,
+       PR_MODE_SPOP   = 0x20,
 } __attribute__((packed));
 
 enum PR_SRV_STATE_FILE {