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#ifndef _TRANSPORT_TRANSPORT_H_ /* -*- linux-c -*- */
#define _TRANSPORT_TRANSPORT_H_
/** @file transport.h
* @brief Header file for stp transport
*/
#include "transport_msgs.h"
/* The size of print buffers. This limits the maximum */
/* amount of data a print can send. */
#define STP_BUFFER_SIZE 8192
struct utt_trace;
static int _stp_ctl_write(int type, void *data, unsigned len);
static int _stp_transport_init(void);
static void _stp_transport_close(void);
static inline void *utt_reserve(struct utt_trace *utt, size_t length)
{
return NULL;
}
/* STP_CTL_BUFFER_SIZE is the maximum size of a message */
/* exchanged on the control channel. */
#ifdef STP_OLD_TRANSPORT
/* Old transport sends print output on control channel */
#define STP_CTL_BUFFER_SIZE STP_BUFFER_SIZE
#else
#define STP_CTL_BUFFER_SIZE 256
#endif
/* how often the work queue wakes up and checks buffers */
#define STP_WORK_TIMER (HZ/100)
static unsigned _stp_nsubbufs;
static unsigned _stp_subbuf_size;
static int _stp_transport_init(void);
static void _stp_transport_close(void);
static int _stp_lock_transport_dir(void);
static void _stp_unlock_transport_dir(void);
static struct dentry *_stp_get_root_dir(void);
static struct dentry *_stp_get_module_dir(void);
static int _stp_transport_fs_init(const char *module_name);
static void _stp_transport_fs_close(void);
static void _stp_attach(void);
static void _stp_detach(void);
static void _stp_handle_start(struct _stp_msg_start *st);
static uid_t _stp_uid;
static gid_t _stp_gid;
static int _stp_ctl_attached;
static int _stp_bufsize;
static int _stp_transport_data_fs_init(void);
static void _stp_transport_data_fs_close(void);
struct _stp_entry {
void *event;
size_t len;
char buf[];
};
static struct _stp_entry *_stp_data_write_reserve(size_t size);
static int _stp_data_write_commit(struct _stp_entry *entry);
#endif /* _TRANSPORT_TRANSPORT_H_ */
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