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

include/kernel/signal.h

@@ -0,0 +1,47 @@
+#ifndef _KERNEL_SIGNAL_H
+#define _KERNEL_SIGNAL_H
+
+#include <stdint.h>
+#include <stddef.h>
+
+#define SIGHUP    1
+#define SIGINT    2
+#define SIGQUIT   3
+#define SIGILL    4
+#define SIGTRAP   5
+#define SIGABRT   6
+#define SIGFPE    8
+#define SIGKILL   9
+#define SIGSEGV   11
+#define SIGPIPE   13
+#define SIGALRM   14
+#define SIGTERM   15
+#define SIGCHLD   17
+#define SIGCONT   18
+#define SIGSTOP   19
+#define SIGTSTP   20
+#define SIGUSR1   10
+#define SIGUSR2   12
+
+#define NSIG      32
+
+typedef void (*sighandler_t)(int);
+
+#define SIG_DFL ((sighandler_t)0)
+#define SIG_IGN ((sighandler_t)1)
+#define SIG_ERR ((sighandler_t)-1)
+
+typedef uint32_t sigset_t;
+
+struct sigaction {
+    sighandler_t sa_handler;
+    sigset_t     sa_mask;
+    int          sa_flags;
+};
+
+void signal_init(void);
+sighandler_t signal_set_handler(int signum, sighandler_t handler);
+int signal_send(uint32_t pid, int signum);
+void signal_deliver_pending(void);
+
+#endif // _KERNEL_SIGNAL_H