qio: Remove the old qnonblock()

[akaros.git] / kern / include / syscall.h

diff --git a/kern/include/syscall.h b/kern/include/syscall.h
index 223133f..23a3062 100644 (file)
--- a/kern/include/syscall.h
+++ b/kern/include/syscall.h
@@ -1,17 +1,17 @@
-#ifndef ROS_KERN_SYSCALL_H
-#define ROS_KERN_SYSCALL_H
+#pragma once
 #ifndef ROS_KERNEL
 # error "This is ROS kernel header; user programs should not #include it"
 #endif
 
 #include <ros/common.h>
 #include <process.h>
+#include <kref.h>
+#include <ns.h>
 
 #define SYSTRACE_ON                                    0x01
 #define SYSTRACE_LOUD                          0x02
 #define SYSTRACE_ALLPROC                       0x04
 
-#define MAX_NUM_TRACED                         10
 #define MAX_SYSTRACES                          1024
 
 #define SYSCALL_STRLEN                         128
@@ -42,6 +42,16 @@ struct systrace_record {
        uint8_t                 data[SYSTR_RECORD_SZ - sizeof(struct systrace_record_anon)];
 };
 
+struct strace {
+       bool tracing;
+       bool inherit;
+       atomic_t nr_drops;
+       unsigned long appx_nr_sysc;
+       struct kref procs; /* when procs goes to zero, q is hung up. */
+       struct kref users; /* when users goes to zero, q and struct are freed. */
+       struct queue *q;
+};
+
 /* Syscall table */
 typedef intreg_t (*syscall_t)(struct proc *, uintreg_t, uintreg_t, uintreg_t,
                               uintreg_t, uintreg_t, uintreg_t);
@@ -59,8 +69,10 @@ intreg_t syscall(struct proc *p, uintreg_t sc_num, uintreg_t a0, uintreg_t a1,
 void set_errno(int errno);
 int get_errno(void);
 void unset_errno(void);
-void set_errstr(char *errstr, ...);
+void vset_errstr(const char *fmt, va_list ap);
+void set_errstr(const char *errstr, ...);
 char *current_errstr(void);
+void set_error(int error, const char *fmt, ...);
 struct errbuf *get_cur_errbuf(void);
 void set_cur_errbuf(struct errbuf *ebuf);
 char *get_cur_genbuf(void);
@@ -78,5 +90,3 @@ void systrace_clear_buffer(void);
 /* Utility */
 bool syscall_uses_fd(struct syscall *sysc, int fd);
 void print_sysc(struct proc *p, struct syscall *sysc);
-
-#endif /* !ROS_KERN_SYSCALL_H */