Added support for callbacks to libltrace

1 files changed, 28 insertions, 0 deletions

diff --git a/ltrace.h b/ltrace.h
index d7d8a69..9ba16a6 100644
--- a/ltrace.h
+++ b/ltrace.h
@@ -1,2 +1,30 @@
+typedef struct Process Process;
+typedef struct Event Event;
+struct Event {
+	Process *proc;
+	enum {
+		EVENT_NONE,
+		EVENT_SIGNAL,
+		EVENT_EXIT,
+		EVENT_EXIT_SIGNAL,
+		EVENT_SYSCALL,
+		EVENT_SYSRET,
+		EVENT_ARCH_SYSCALL,
+		EVENT_ARCH_SYSRET,
+		EVENT_CLONE,
+		EVENT_EXEC,
+		EVENT_BREAKPOINT,
+		EVENT_NEW       /* in this case, proc is NULL */
+	} type;
+	union {
+		int ret_val;    /* EVENT_EXIT */
+		int signum;     /* EVENT_SIGNAL, EVENT_EXIT_SIGNAL */
+		int sysnum;     /* EVENT_SYSCALL, EVENT_SYSRET */
+		void *brk_addr; /* EVENT_BREAKPOINT */
+		int newpid;     /* EVENT_CLONE, EVENT_NEW */
+	} e_un;
+};
+
 extern void ltrace_init(int argc, char **argv);
+extern void ltrace_add_callback(void (*func)(Event *));
 extern void ltrace_main(void);