fixes

include/ipc/common.h

@@ -0,0 +1,36 @@
+#pragma once
+
+#include <zinnia/channel.h>
+#include <zinnia/handle.h>
+#include <common/utils.h>
+#include <stdint.h>
+
+#define ZN_IPC_NUM(group, num) ((uint32_t)(group) << 24u) | ((uint32_t)(num) & 0xffffffu)
+
+#define ZN_IPC(name, group, num, num_handles) \
+    name##_inner; \
+    constexpr uint32_t name##_num = ZN_IPC_NUM(group, num); \
+    typedef struct { \
+        uint32_t id; \
+        zn_handle_t handles[num_handles]; \
+        name##_inner inner; \
+    } name
+
+#define zn_ipc_write(channel, obj) \
+    zn_channel_write(channel, (obj)->handles, &(obj)->inner, ARRAY_SIZE((obj)->handles), sizeof((obj)->inner))
+
+#define zn_ipc_read(channel, obj) \
+    zn_channel_read( \
+        channel, \
+        (obj)->handles, \
+        &(obj)->inner, \
+        ARRAY_SIZE((obj)->handles), \
+        sizeof((obj)->inner), \
+        nullptr, \
+        nullptr \
+    )
+
+#define zn_ipc_new(name) \
+    (zn_ipc_fw_rsdp) { \
+        .id = name##_num \
+    }

include/zinnia/channel.h

@@ -13,6 +13,7 @@ extern "C" {
 
 enum zn_channel_flags {
     ZN_CHANNEL_NONE = 0,
+    ZN_CHANNEL_NONBLOCK = 1 << 0,
 };
 
 // Creates a new channel.