Decoupling Architectural-specific Code (#35)

[lunaix-os.git] / lunaix-os / includes / lunaix / signal.h

diff --git a/lunaix-os/includes/lunaix/signal.h b/lunaix-os/includes/lunaix/signal.h
index d1f7041ebd284257b8ce8730f3c155a6d56d426e..e9838461031c235cd52472fbbe959f43700119ee 100644 (file)
--- a/lunaix-os/includes/lunaix/signal.h
+++ b/lunaix-os/includes/lunaix/signal.h
@@ -1,33 +1,68 @@
 #ifndef __LUNAIX_SIGNAL_H
 #define __LUNAIX_SIGNAL_H
 
-#include <lunaix/syscall.h>
+#include <usr/lunaix/signal_defs.h>
 
-#define _SIG_NUM 8
+#define _SIG_NUM 16
 
 #define _SIG_PENDING(bitmap, sig) ((bitmap) & (1 << (sig)))
 
-#define _SIGSEGV 0
-#define _SIGALRM 1
-#define _SIGCHLD 2
-#define _SIGCLD _SIGCHLD
-#define _SIGINT 3
-#define _SIGKILL 4
-#define _SIGSTOP 5
-#define _SIGCONT 6
+#define _SIGSEGV SIGSEGV
+#define _SIGALRM SIGALRM
+#define _SIGCHLD SIGCHLD
+#define _SIGCLD SIGCLD
+#define _SIGINT SIGINT
+#define _SIGKILL SIGKILL
+#define _SIGSTOP SIGSTOP
+#define _SIGCONT SIGCONT
+#define _SIGTERM SIGTERM
+#define _SIG_BLOCK SIG_BLOCK
+#define _SIG_UNBLOCK SIG_UNBLOCK
+#define _SIG_SETMASK SIG_SETMASK
 
-#define __SIGNAL(num) (1 << (num))
-#define __SET_SIGNAL(bitmap, num) (bitmap = bitmap | __SIGNAL(num))
+#define sigset(num) (1 << (num))
+#define sigset_add(set, num) (set = set | sigset(num))
+#define sigset_test(set, num) (set & sigset(num))
+#define sigset_clear(set, num) ((set) = (set) & ~sigset(num))
+#define sigset_union(set, set2) ((set) = (set) | (set2))
+#define sigset_intersect(set, set2) ((set) = (set) & (set2))
 
-#define _SIGNAL_UNMASKABLE (__SIGNAL(_SIGKILL) | __SIGNAL(_SIGSTOP))
+struct sigact
+{
+    sigset_t sa_mask;
+    void* sa_actor;
+    void* sa_handler;
+    pid_t sender;
+};
 
-#define _SIG_BLOCK 1
-#define _SIG_UNBLOCK 2
-#define _SIG_SETMASK 3
+struct sigregistry {
+    struct sigact* signals[_SIG_NUM];
+};
 
-typedef unsigned int sigset_t;
-typedef void (*sighandler_t)(int);
+struct sigctx
+{
+    sigset_t sig_pending;
+    sigset_t sig_mask;
+    signum_t sig_active;
+    signum_t sig_order[_SIG_NUM];
+};
 
-__LXSYSCALL2(int, signal, int, signum, sighandler_t, handler);
+int
+signal_send(pid_t pid, signum_t signum);
+
+void
+signal_dup_context(struct sigctx* dest_ctx);
+
+void
+signal_dup_registry(struct sigregistry* dest_reg);
+
+void
+signal_reset_context(struct sigctx* sigctx);
+
+void
+signal_reset_registry(struct sigregistry* sigreg);
+
+void
+signal_free_registry(struct sigregistry* sigreg);
 
 #endif /* __LUNAIX_SIGNAL_H */