runtime/transport/transport.h

   1 #ifndef _TRANSPORT_TRANSPORT_H_ /* -*- linux-c -*- */
   2 #define _TRANSPORT_TRANSPORT_H_
   3
   4 /** @file transport.h
   5  * @brief Header file for stp transport
   6  */
   7
   8 #include "transport_msgs.h"
   9
  10 /* The size of print buffers. This limits the maximum */
  11 /* amount of data a print can send. */
  12 #define STP_BUFFER_SIZE 8192
  13
  14 /* STP_CTL_BUFFER_SIZE is the maximum size of a message */
  15 /* exchanged on the control channel. */
  16 #ifdef STP_OLD_TRANSPORT
  17 /* Old transport sends print output on control channel */
  18 #define STP_CTL_BUFFER_SIZE STP_BUFFER_SIZE
  19 #else
  20 #define STP_CTL_BUFFER_SIZE 256
  21 #endif
  22
  23 /* how often the work queue wakes up and checks buffers */
  24 #define STP_WORK_TIMER (HZ/100)
  25
  26 static unsigned _stp_nsubbufs = 8;
  27 static unsigned _stp_subbuf_size = 65536*4;
  28
  29 void _stp_warn (const char *fmt, ...);
  30 extern void _stp_transport_close(void);
  31 extern int _stp_print_init(void);
  32 extern void _stp_print_cleanup(void);
  33 static struct dentry *_stp_get_root_dir(const char *name);
  34 static int _stp_lock_debugfs(void);
  35 static void _stp_unlock_debugfs(void);
  36 static int _stp_ctl_send(int type, void *data, int len);
  37 static void _stp_attach(void);
  38 static void _stp_detach(void);
  39 void _stp_handle_start(struct _stp_msg_start *st);
  40
  41 int _stp_pid = 0;
  42 uid_t _stp_uid = 0;
  43 gid_t _stp_gid = 0;
  44 pid_t _stp_init_pid = 0;
  45 int _stp_attached = 0;
  46 #endif /* _TRANSPORT_TRANSPORT_H_ */