feat: Massive OS expansion with IPC, Sound & TTS, Block layer, FAT32/ext2/sysfs, Signals, Syscalls, Modules, Drivers & 50+ LazyBox applets

include/ipc/msg.h

@@ -0,0 +1,38 @@
+#ifndef _IPC_MSG_H
+#define _IPC_MSG_H
+
+#include <ipc/ipc.h>
+#include <kernel/types.h>
+
+#define MAX_MSG_QUEUES 16
+#define MAX_MSG_PAYLOAD 256
+#define MAX_MSGS_PER_QUEUE 16
+
+typedef struct msgbuf {
+    long mtype;
+    char mtext[MAX_MSG_PAYLOAD];
+} msgbuf_t;
+
+typedef struct msg_entry {
+    long mtype;
+    size_t size;
+    uint8_t data[MAX_MSG_PAYLOAD];
+    struct msg_entry* next;
+} msg_entry_t;
+
+typedef struct msqid_ds {
+    int msqid;
+    key_t key;
+    uint32_t msg_qnum;
+    uint32_t msg_qbytes;
+    msg_entry_t* head;
+    msg_entry_t* tail;
+    bool in_use;
+} msqid_ds_t;
+
+int msgget(key_t key, int msgflg);
+int msgsnd(int msqid, const void* msgp, size_t msgsz, int msgflg);
+ssize_t msgrcv(int msqid, void* msgp, size_t msgsz, long msgtyp, int msgflg);
+int msgctl(int msqid, int cmd, struct msqid_ds* buf);
+
+#endif // _IPC_MSG_H