OpenVPN: src/openvpn/event.c File Reference

OpenVPN

#include "syshead.h"
#include "buffer.h"
#include "error.h"
#include "integer.h"
#include "event.h"
#include "fdmisc.h"
#include "memdbg.h"

Include dependency graph for event.c:

Go to the source code of this file.

Data Structures
struct	we_set

Macros
#define	SELECT 0

#define	SELECT_MAX_FDS 256

Functions
static int	tv_to_ms_timeout (const struct timeval *tv)
	Convert `timeval` value (which is in seconds and microseconds) to a value of milliseconds which is required by multiple polling APIs.

static void	we_set_event (struct we_set wes, int i, event_t event, unsigned int rwflags, void arg)

static bool	we_append_event (struct we_set wes, event_t event, unsigned int rwflags, void arg)

static void	we_del_event (struct we_set *wes, event_t event)

static void	we_del_index (struct we_set *wes, int index)

static void	we_get_rw_indices (struct we_set wes, event_t event, int ri, int *wi)

static void	we_free (struct event_set *es)

static void	we_reset (struct event_set *es)

static void	we_del (struct event_set *es, event_t event)

static void	we_ctl (struct event_set es, event_t event, unsigned int rwflags, void arg)

static int	we_wait (struct event_set es, const struct timeval tv, struct event_set_return *out, int outlen)

static struct event_set *	we_init (int *maxevents, unsigned int flags)

static struct event_set *	event_set_init_simple (int *maxevents, unsigned int flags)

static struct event_set *	event_set_init_scalable (int *maxevents, unsigned int flags)

struct event_set *	event_set_init (int *maxevents, unsigned int flags)

Macro Definition Documentation

◆ SELECT

#define SELECT 0

Definition at line 53 of file event.c.

◆ SELECT_MAX_FDS

#define SELECT_MAX_FDS 256

Definition at line 65 of file event.c.

Function Documentation

◆ event_set_init()

struct event_set * event_set_init	(	int *	maxevents,
		unsigned int	flags
	)

Definition at line 1177 of file event.c.

References EVENT_METHOD_FAST, event_set_init_scalable(), and event_set_init_simple().

Referenced by do_event_set_init(), man_connection_init(), and multi_io_init().

◆ event_set_init_scalable()

static struct event_set * event_set_init_scalable	(	int *	maxevents,
		unsigned int	flags
	)

static

Definition at line 1159 of file event.c.

References ASSERT, event_set_init_simple(), M_WARN, and msg.

Referenced by event_set_init().

◆ event_set_init_simple()

static struct event_set * event_set_init_simple	(	int *	maxevents,
		unsigned int	flags
	)

static

Definition at line 1116 of file event.c.

References ASSERT, EVENT_METHOD_US_TIMEOUT, and we_init().

Referenced by event_set_init(), and event_set_init_scalable().

◆ tv_to_ms_timeout()

static int tv_to_ms_timeout ( const struct timeval * tv )

inlinestatic

Convert timeval value (which is in seconds and microseconds) to a value of milliseconds which is required by multiple polling APIs.

Parameters

tv	`timeval` to convert

Returns: Milliseconds to wait. Zero if tv is zero. Otherwise the return value is always greater than zero.

Definition at line 78 of file event.c.

References max_int().

Referenced by we_wait().

◆ we_append_event()

static bool we_append_event	(	struct we_set *	wes,
		event_t	event,
		unsigned int	rwflags,
		void *	arg
	)

inlinestatic

Definition at line 128 of file event.c.

References event_set_return::arg, we_set::capacity, EVENT_READ, EVENT_WRITE, we_set::n_events, event_set_return::rwflags, and we_set_event().

Referenced by we_ctl().

◆ we_ctl()

static void we_ctl	(	struct event_set *	es,
		event_t	event,
		unsigned int	rwflags,
		void *	arg
	)

static

Definition at line 242 of file event.c.

References ASSERT, D_EVENT_ERRORS, D_EVENT_WAIT, dmsg, es, EVENT_READ, EVENT_WRITE, we_set::fast, M_FATAL, msg, we_set::n_events, ptr_format, we_append_event(), we_del_event(), we_del_index(), we_get_rw_indices(), and we_set_event().

Referenced by we_init().

◆ we_del()

static void we_del	(	struct event_set *	es,
		event_t	event
	)

static

Definition at line 234 of file event.c.

References ASSERT, es, we_set::fast, and we_del_event().

Referenced by we_init().

◆ we_del_event()

static void we_del_event	(	struct we_set *	wes,
		event_t	event
	)

static

Definition at line 158 of file event.c.

References we_set::esr, we_set::events, i, we_set::n_events, rw_handle::read, and rw_handle::write.

Referenced by we_ctl(), and we_del().

◆ we_del_index()

static void we_del_index	(	struct we_set *	wes,
		int	index
	)

static

Definition at line 183 of file event.c.

References ASSERT, we_set::esr, we_set::events, i, and we_set::n_events.

Referenced by we_ctl().

◆ we_free()

static void we_free ( struct event_set * es )

static

Definition at line 217 of file event.c.

References es, we_set::esr, and we_set::events.

Referenced by we_init().

◆ we_get_rw_indices()

static void we_get_rw_indices	(	struct we_set *	wes,
		event_t	event,
		int *	ri,
		int *	wi
	)

static

Definition at line 196 of file event.c.

References ASSERT, we_set::events, i, we_set::n_events, rw_handle::read, and rw_handle::write.

Referenced by we_ctl().

◆ we_init()

static struct event_set * we_init	(	int *	maxevents,
		unsigned int	flags
	)

static

Definition at line 480 of file event.c.

References ALLOC_ARRAY_CLEAR, ALLOC_OBJ_CLEAR, ASSERT, we_set::capacity, event_set_functions::ctl, D_EVENT_WAIT, event_set_functions::del, dmsg, we_set::esr, EVENT_METHOD_FAST, we_set::events, we_set::fast, event_set_functions::free, we_set::func, min_int(), we_set::n_events, event_set_functions::reset, event_set_functions::wait, we_ctl(), we_del(), we_free(), we_reset(), and we_wait().

Referenced by event_set_init_simple().

◆ we_reset()

static void we_reset ( struct event_set * es )

static

Definition at line 226 of file event.c.

References ASSERT, es, we_set::fast, and we_set::n_events.

Referenced by we_init().

◆ we_set_event()

static void we_set_event	(	struct we_set *	wes,
		int	i,
		event_t	event,
		unsigned int	rwflags,
		void *	arg
	)

inlinestatic

Definition at line 104 of file event.c.

References event_set_return::arg, ASSERT, we_set::esr, EVENT_READ, EVENT_WRITE, we_set::events, i, M_FATAL, msg, rw_handle::read, event_set_return::rwflags, and rw_handle::write.

Referenced by we_append_event(), and we_ctl().

◆ we_wait()

static int we_wait	(	struct event_set *	es,
		const struct timeval *	tv,
		struct event_set_return *	out,
		int	outlen
	)

static

Definition at line 393 of file event.c.

References event_set_return::arg, check_debug_level(), D_EVENT_WAIT, dmsg, es, we_set::esr, we_set::events, i, we_set::n_events, ptr_format, event_set_return::rwflags, status, and tv_to_ms_timeout().

Referenced by we_init().