I/O

I/O functions. More...

Defines
#define	STP_LOG_BUF_LEN   2047
	private buffer for _stp_log()
Functions
void	_stp_log (const char *fmt,...)
	Logs Data.
int	_stp_netlink_open (void)
	Opens netlink and relayfs connections to stpd.
void	_stp_netlink_close (void)
	Closes netlink and relayfs connections to stpd.

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Detailed Description

I/O functions.

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Function Documentation

void _stp_log (  const char *  fmt,   ... )

Logs Data. This function prints to the system log if stpd has not connected yet. Otherwise it sends the message immediately to stpd. Parameters: fmt  A variable number of args. Note: Lines are limited in length by printk buffer. If there is no newline in the format string, then other syslog output could get appended to the SystemTap line. Todo: Evaluate if this function is necessary. Definition at line 29 of file io.c. References STP_LOG_BUF_LEN. Referenced by _stp_list_clear(), _stp_register_jprobes(), _stp_register_kprobes(), _stp_stack_sprint(), _stp_string_init(), _stp_unregister_jprobes(), and _stp_unregister_kprobes().

void _stp_netlink_close (  void   )

Closes netlink and relayfs connections to stpd. This must be called after all I/O is done, probably at the end of module cleanup. Returns: 0 on success. -1 if there is a problem establishing a connection. Definition at line 103 of file io.c.

int _stp_netlink_open (  void   )

Opens netlink and relayfs connections to stpd. This must be called before any I/O is done, probably at the start of module initialization. Definition at line 87 of file io.c.