split syscall info into api subfolder. untyped syscalls

1 files changed, 69 insertions, 0 deletions

diff --git a/sys/syscall_untyped.c b/sys/syscall_untyped.c
new file mode 100644
index 0000000..52a0715
--- /dev/null
+++ b/sys/syscall_untyped.c
@@ -0,0 +1,69 @@
+#include "arch/x86_64/hal/obj.h"
+#include "hal/memory.h"
+#include "jove.h"
+#include "lib/printf.h"
+#include "syscall.h"
+
+static int
+s_syscall_untyped_split(
+        jove_owned_obj_t *objdir,
+        jove_owned_obj_t *target_obj,
+        size_t payload_bytes,
+        void *payload_data)
+{
+    int bytes_needed = sizeof(struct syscall_untyped_split);
+    CHECK_TOOSMALL(bytes_needed, payload_bytes, "Message is too small for payload!");
+
+    struct syscall_untyped_split *payload = payload_data;
+    bytes_needed += payload->dest_pathlen * 2;
+    CHECK_TOOSMALL(bytes_needed, payload_bytes, "Message is too small for destination path!");
+
+    jove_owned_obj_t *dst_obj = objdir_getobj(objdir, payload->dest_path, payload->dest_pathlen);
+    CHECK_OBJTYPE(dst_obj, JOVE_OBJ_NONE, "Destination path is occupied!");
+
+    return untyped_split(target_obj, dst_obj, payload->bytes);
+}
+
+static int
+s_syscall_untyped_merge(
+        jove_owned_obj_t *objdir,
+        jove_owned_obj_t *target_obj,
+        size_t payload_bytes,
+        void *payload_data)
+{
+    int bytes_needed = sizeof(struct syscall_generic_objpath);
+    CHECK_TOOSMALL(bytes_needed, payload_bytes, "Message is too small for payload!");
+
+    struct syscall_generic_objpath *payload = payload_data;
+    bytes_needed += payload->second_pathlen * 2;
+    CHECK_TOOSMALL(bytes_needed, payload_bytes, "Message is too small for second path!");
+
+    jove_owned_obj_t *snd_obj = objdir_getobj(objdir, payload->second_path, payload->second_pathlen);
+    CHECK_OBJTYPE(snd_obj, JOVE_OBJ_UNTYPED, "Second object is not an untyped!");
+
+    return untyped_merge(target_obj, snd_obj);
+}
+
+
+int _syscall_handle_untyped(
+        jove_owned_obj_t* pcb_obj,
+        jove_owned_obj_t* objdir,
+        jove_owned_obj_t* message_obj,
+        jove_owned_obj_t* target_obj,
+        struct syscall_header* header,
+        size_t payload_bytes,
+        void* payload)
+{
+    switch(header->callid) {
+        case SYSCALL_UNTYPED_SIZE: 
+            return untyped_size(target_obj);
+        case SYSCALL_UNTYPED_ALIGN: 
+            return untyped_align(target_obj);
+        case SYSCALL_UNTYPED_SPLIT:
+            return s_syscall_untyped_split(objdir, target_obj, payload_bytes, payload);
+        default:
+            kprintf("syscall_untyped: Untyped object does not support syscall %i\n", header->callid);
+            return EBADARG;
+    }
+    return 0;
+}