From: Lionel Sambuc <lionel@minix3.org>
Date: Mon, 28 Apr 2014 12:21:40 +0000 (+0200)
Subject: Introduce message types mess_u{8,16,32,64}
X-Git-Tag: v3.3.0~353
X-Git-Url: http://zhaoyanbai.com/repos/%22http:/www.isc.org/icons/rndc.html?a=commitdiff_plain;h=97bbdc69df48396930b00df30afde3b08364ca6b;p=minix.git

Introduce message types mess_u{8,16,32,64}

Those messages offer a simple array of the given type. This should allow
for fast and simple prototyping.

When a protocol is fixed, then proper message types should be defined.

Change-Id: I4e98eeb0493924f3015862a51d14d894315e2bc2
---

diff --git a/include/minix/ipc.h b/include/minix/ipc.h
index 11282305d..e04593cb5 100644
--- a/include/minix/ipc.h
+++ b/include/minix/ipc.h
@@ -16,6 +16,26 @@
 #define M3_STRING         44	/* legacy m3_ca1 size (must not be changed) */
 #define M3_LONG_STRING    44	/* current m3_ca1 size (may be increased) */
 
+typedef struct {
+	uint8_t data[56];
+} mess_u8;
+_ASSERT_MSG_SIZE(mess_u8);
+
+typedef struct {
+	uint16_t data[28];
+} mess_u16;
+_ASSERT_MSG_SIZE(mess_u16);
+
+typedef struct {
+	uint32_t data[14];
+} mess_u32;
+_ASSERT_MSG_SIZE(mess_u32);
+
+typedef struct {
+	uint64_t data[7];
+} mess_u64;
+_ASSERT_MSG_SIZE(mess_u64);
+
 typedef struct {
 	uint64_t m1ull1;
 	int m1i1, m1i2, m1i3;
@@ -186,6 +206,11 @@ typedef struct {
   endpoint_t m_source;		/* who sent the message */
   int m_type;			/* what kind of message is it */
   union {
+	mess_u8 m_u8;
+	mess_u16 m_u16;
+	mess_u32 m_u32;
+	mess_u64 m_u64;
+
 	mess_1 m_m1;
 	mess_2 m_m2;
 	mess_3 m_m3;