kernel: replace kern_handle_duplicate with the more powerful kern_handle_transfer

this syscall can move and copy handles within the current task, or from/to other tasks
2026-03-29 11:48:59 +01:00
parent 9001f8e064
commit 62770f4ab2
6 changed files with 128 additions and 20 deletions
@@ -83,7 +83,7 @@ SYSCALL_GATE address_space_release SYS_ADDRESS_SPACE_RELEASE 3

 SYSCALL_GATE kern_log SYS_KERN_LOG 1
 SYSCALL_GATE kern_handle_close SYS_KERN_HANDLE_CLOSE 1
-SYSCALL_GATE kern_handle_duplicate SYS_KERN_HANDLE_DUPLICATE 2
+SYSCALL_GATE kern_handle_transfer SYS_KERN_HANDLE_TRANSFER 6
 SYSCALL_GATE kern_config_get SYS_KERN_CONFIG_GET 3
 SYSCALL_GATE kern_config_set SYS_KERN_CONFIG_SET 3

@@ -5,8 +5,12 @@
 #include <mango/types.h>

 extern kern_status_t kern_handle_close(kern_handle_t handle);
-extern kern_status_t kern_handle_duplicate(
-	kern_handle_t handle,
-	kern_handle_t *out);
+extern kern_status_t kern_handle_transfer(
+	kern_handle_t src_task,
+	kern_handle_t src_handle,
+	kern_handle_t dest_task,
+	kern_handle_t dest_handle,
+	unsigned int mode,
+	kern_handle_t *out_handle);

 #endif
@@ -3,7 +3,7 @@

 #define SYS_KERN_LOG                    1
 #define SYS_KERN_HANDLE_CLOSE           2
-#define SYS_KERN_HANDLE_DUPLICATE       3
+#define SYS_KERN_HANDLE_TRANSFER        3
 #define SYS_KERN_CONFIG_GET             4
 #define SYS_KERN_CONFIG_SET             5
 #define SYS_KERN_OBJECT_WAIT            6