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try to programmatically integrate libevent

master
Marc Alexander Lehmann 2007-11-03 19:41:55 +00:00
parent c3e49f1130
commit 79c49c6573
6 changed files with 261 additions and 26 deletions
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27
ev.c
View File

@ -28,7 +28,7 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#if EV_USE_CONFIG_H
#ifndef EV_STANDALONE
# include "config.h"
#endif
@ -177,7 +177,7 @@ get_clock (void)
typedef struct
{
struct ev_io *head;
struct ev_watcher_list *head;
unsigned char events;
unsigned char reify;
} ANFD;
@ -237,7 +237,7 @@ fd_event (int fd, int events)
ANFD *anfd = anfds + fd;
struct ev_io *w;
for (w = anfd->head; w; w = w->next)
for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
{
int ev = w->events & events;
@ -264,7 +264,7 @@ fd_reify (void)
int events = 0;
for (w = anfd->head; w; w = w->next)
for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
events |= w->events;
anfd->reify = 0;
@ -297,8 +297,7 @@ fd_kill (int fd)
{
struct ev_io *w;
printf ("killing fd %d\n", fd);//D
while ((w = anfds [fd].head))
while ((w = (struct ev_io *)anfds [fd].head))
{
ev_io_stop (w);
event ((W)w, EV_ERROR | EV_READ | EV_WRITE);
@ -385,7 +384,7 @@ downheap (WT *timers, int N, int k)
typedef struct
{
struct ev_signal *head;
struct ev_watcher_list *head;
sig_atomic_t volatile gotsig;
} ANSIG;
@ -425,7 +424,7 @@ sighandler (int signum)
static void
sigcb (struct ev_io *iow, int revents)
{
struct ev_signal *w;
struct ev_watcher_list *w;
int signum;
read (sigpipe [0], &revents, 1);
@ -484,13 +483,12 @@ child_reap (struct ev_signal *sw, int chain, int pid, int status)
{
struct ev_child *w;
for (w = childs [chain & (PID_HASHSIZE - 1)]; w; w = w->next)
for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)
if (w->pid == pid || !w->pid)
{
w->priority = sw->priority; /* need to do it *now* */
w->rpid = pid;
w->rstatus = status;
printf ("rpid %p %d %d\n", w, pid, w->pid);//D
event ((W)w, EV_CHILD);
}
}
@ -500,7 +498,6 @@ childcb (struct ev_signal *sw, int revents)
{
int pid, status;
printf ("chld %x\n", revents);//D
if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
{
/* make sure we are called again until all childs have been reaped */
@ -573,10 +570,10 @@ int ev_init (int methods)
return 0;
if (methods == EVMETHOD_AUTO)
if (!enable_secure () && getenv ("LIBEV_METHODS"))
methods = atoi (getenv ("LIBEV_METHODS"));
else
methods = EVMETHOD_ANY;
if (!enable_secure () && getenv ("LIBEV_METHODS"))
methods = atoi (getenv ("LIBEV_METHODS"));
else
methods = EVMETHOD_ANY;
ev_method = 0;
#if EV_USE_KQUEUE

2
ev.h
View File

@ -86,7 +86,7 @@ typedef double ev_tstamp;
#define EV_WATCHER_LIST(type) \
EV_WATCHER (type); \
struct type *next /* private */
struct ev_watcher_list *next /* private */
#define EV_WATCHER_TIME(type) \
EV_WATCHER (type); \

11
evdns.c
View File

@ -1,5 +1,4 @@
#define DNS_USE_GETTIMEOFDAY_FOR_ID 1
#define HAVE_STRUCT_IN6_ADDR 1
/* $Id: evdns.c,v 1.6 2007-11-03 19:41:55 root Exp $ */
/* The original version of this module was written by Adam Langley; for
* a history of modifications, check out the subversion logs.
@ -41,6 +40,7 @@
#endif
#ifdef WIN32
#include "misc.h"
#endif
/* #define NDEBUG */
@ -94,6 +94,7 @@
#include <stdarg.h>
#include "evdns.h"
#include "log.h"
#ifdef WIN32
#include <windows.h>
#include <winsock2.h>
@ -2546,7 +2547,7 @@ evdns_resolv_set_defaults(int flags) {
#ifndef HAVE_STRTOK_R
static char *
fake_strtok_r(char *s, const char *delim, char **state) {
strtok_r(char *s, const char *delim, char **state) {
return strtok(s, delim);
}
#endif
@ -2622,9 +2623,9 @@ static void
resolv_conf_parse_line(char *const start, int flags) {
char *strtok_state;
static const char *const delims = " \t";
#define NEXT_TOKEN fake_strtok_r(NULL, delims, &strtok_state)
#define NEXT_TOKEN strtok_r(NULL, delims, &strtok_state)
char *const first_token = fake_strtok_r(start, delims, &strtok_state);
char *const first_token = strtok_r(start, delims, &strtok_state);
if (!first_token) return;
if (!strcmp(first_token, "nameserver") && (flags & DNS_OPTION_NAMESERVERS)) {

10
event.c
View File

@ -90,10 +90,12 @@ int event_dispatch (void)
return event_base_dispatch (x_cur);
}
#ifdef EV_STANDALONE
void event_set_log_callback (event_log_cb cb)
{
/* nop */
}
#endif
int event_loop (int flags)
{
@ -102,7 +104,7 @@ int event_loop (int flags)
int event_loopexit (struct timeval *tv)
{
event_base_loopexit (x_cur, tv);
return event_base_loopexit (x_cur, tv);
}
static void
@ -174,7 +176,7 @@ void event_set (struct event *ev, int fd, short events, void (*cb)(int, short, v
int event_once (int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv)
{
event_base_once (x_cur, fd, events, cb, arg, tv);
return event_base_once (x_cur, fd, events, cb, arg, tv);
}
int event_add (struct event *ev, struct timeval *tv)
@ -237,7 +239,7 @@ int event_del (struct event *ev)
int event_pending (struct event *ev, short events, struct timeval *tv)
{
short revents;
short revents = 0;
if (ev->ev_events & EV_SIGNAL)
{
@ -309,6 +311,8 @@ int event_base_loopexit (struct event_base *base, struct timeval *tv)
ev_tstamp after = tv_get (tv);
ev_once (-1, 0, after >= 0. ? after : 0., x_loopexit_cb, (void *)base);
return -1;
}
struct x_once

12
event.h
View File

@ -31,12 +31,12 @@
#ifndef _EVENT_H_
#define _EVENT_H_
#include "ev.h"
#ifdef __cplusplus
extern "C" {
#endif
#include "ev.h"
struct event
{
/* libev watchers we map onto */
@ -119,5 +119,13 @@ int event_base_dispatch (struct event_base *base);
int event_base_once (struct event_base *base, int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv);
int event_base_priority_init (struct event_base *base, int fd);
#ifndef EV_STANDALONE
# include "event_compat.h"
#endif
#ifdef __cplusplus
}
#endif
#endif

225
event_compat.h Normal file
View File

@ -0,0 +1,225 @@
/*
* Copyright (c) 2000-2004 Niels Provos <provos@citi.umich.edu>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef __cplusplus
extern "C" {
#endif
#include <sys/time.h>
#include <stdint.h>
#include <stdarg.h>
#ifdef WIN32
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#undef WIN32_LEAN_AND_MEAN
typedef unsigned char u_char;
typedef unsigned short u_short;
#endif
/* Fix so that ppl dont have to run with <sys/queue.h> */
#ifndef TAILQ_ENTRY
#define _EVENT_DEFINED_TQENTRY
#define TAILQ_ENTRY(type) \
struct { \
struct type *tqe_next; /* next element */ \
struct type **tqe_prev; /* address of previous next element */ \
}
#endif /* !TAILQ_ENTRY */
#ifndef RB_ENTRY
#define _EVENT_DEFINED_RBENTRY
#define RB_ENTRY(type) \
struct { \
struct type *rbe_left; /* left element */ \
struct type *rbe_right; /* right element */ \
struct type *rbe_parent; /* parent element */ \
int rbe_color; /* node color */ \
}
#endif /* !RB_ENTRY */
/*
* Key-Value pairs. Can be used for HTTP headers but also for
* query argument parsing.
*/
struct evkeyval {
TAILQ_ENTRY(evkeyval) next;
char *key;
char *value;
};
#ifdef _EVENT_DEFINED_TQENTRY
#undef TAILQ_ENTRY
struct event_list;
struct evkeyvalq;
#undef _EVENT_DEFINED_TQENTRY
#else
TAILQ_HEAD (event_list, event);
TAILQ_HEAD (evkeyvalq, evkeyval);
#endif /* _EVENT_DEFINED_TQENTRY */
#ifdef _EVENT_DEFINED_RBENTRY
#undef RB_ENTRY
#undef _EVENT_DEFINED_RBENTRY
#endif /* _EVENT_DEFINED_RBENTRY */
struct eventop {
char *name;
void *(*init)(struct event_base *);
int (*add)(void *, struct event *);
int (*del)(void *, struct event *);
int (*recalc)(struct event_base *, void *, int);
int (*dispatch)(struct event_base *, void *, struct timeval *);
void (*dealloc)(struct event_base *, void *);
};
/* These functions deal with buffering input and output */
struct evbuffer {
u_char *buffer;
u_char *orig_buffer;
size_t misalign;
size_t totallen;
size_t off;
void (*cb)(struct evbuffer *, size_t, size_t, void *);
void *cbarg;
};
/* Just for error reporting - use other constants otherwise */
#define EVBUFFER_READ 0x01
#define EVBUFFER_WRITE 0x02
#define EVBUFFER_EOF 0x10
#define EVBUFFER_ERROR 0x20
#define EVBUFFER_TIMEOUT 0x40
struct bufferevent;
typedef void (*evbuffercb)(struct bufferevent *, void *);
typedef void (*everrorcb)(struct bufferevent *, short what, void *);
struct event_watermark {
size_t low;
size_t high;
};
struct bufferevent {
struct event ev_read;
struct event ev_write;
struct evbuffer *input;
struct evbuffer *output;
struct event_watermark wm_read;
struct event_watermark wm_write;
evbuffercb readcb;
evbuffercb writecb;
everrorcb errorcb;
void *cbarg;
int timeout_read; /* in seconds */
int timeout_write; /* in seconds */
short enabled; /* events that are currently enabled */
};
struct bufferevent *bufferevent_new(int fd,
evbuffercb readcb, evbuffercb writecb, everrorcb errorcb, void *cbarg);
int bufferevent_base_set(struct event_base *base, struct bufferevent *bufev);
int bufferevent_priority_set(struct bufferevent *bufev, int pri);
void bufferevent_free(struct bufferevent *bufev);
int bufferevent_write(struct bufferevent *bufev, void *data, size_t size);
int bufferevent_write_buffer(struct bufferevent *bufev, struct evbuffer *buf);
size_t bufferevent_read(struct bufferevent *bufev, void *data, size_t size);
int bufferevent_enable(struct bufferevent *bufev, short event);
int bufferevent_disable(struct bufferevent *bufev, short event);
void bufferevent_settimeout(struct bufferevent *bufev,
int timeout_read, int timeout_write);
#define EVBUFFER_LENGTH(x) (x)->off
#define EVBUFFER_DATA(x) (x)->buffer
#define EVBUFFER_INPUT(x) (x)->input
#define EVBUFFER_OUTPUT(x) (x)->output
struct evbuffer *evbuffer_new(void);
void evbuffer_free(struct evbuffer *);
int evbuffer_expand(struct evbuffer *, size_t);
int evbuffer_add(struct evbuffer *, const void *, size_t);
int evbuffer_remove(struct evbuffer *, void *, size_t);
char *evbuffer_readline(struct evbuffer *);
int evbuffer_add_buffer(struct evbuffer *, struct evbuffer *);
int evbuffer_add_printf(struct evbuffer *, const char *fmt, ...);
int evbuffer_add_vprintf(struct evbuffer *, const char *fmt, va_list ap);
void evbuffer_drain(struct evbuffer *, size_t);
int evbuffer_write(struct evbuffer *, int);
int evbuffer_read(struct evbuffer *, int, int);
u_char *evbuffer_find(struct evbuffer *, const u_char *, size_t);
void evbuffer_setcb(struct evbuffer *, void (*)(struct evbuffer *, size_t, size_t, void *), void *);
/*
* Marshaling tagged data - We assume that all tags are inserted in their
* numeric order - so that unknown tags will always be higher than the
* known ones - and we can just ignore the end of an event buffer.
*/
void evtag_init(void);
void evtag_marshal(struct evbuffer *evbuf, uint8_t tag, const void *data,
uint32_t len);
void encode_int(struct evbuffer *evbuf, uint32_t number);
void evtag_marshal_int(struct evbuffer *evbuf, uint8_t tag, uint32_t integer);
void evtag_marshal_string(struct evbuffer *buf, uint8_t tag,
const char *string);
void evtag_marshal_timeval(struct evbuffer *evbuf, uint8_t tag,
struct timeval *tv);
void evtag_test(void);
int evtag_unmarshal(struct evbuffer *src, uint8_t *ptag, struct evbuffer *dst);
int evtag_peek(struct evbuffer *evbuf, uint8_t *ptag);
int evtag_peek_length(struct evbuffer *evbuf, uint32_t *plength);
int evtag_payload_length(struct evbuffer *evbuf, uint32_t *plength);
int evtag_consume(struct evbuffer *evbuf);
int evtag_unmarshal_int(struct evbuffer *evbuf, uint8_t need_tag,
uint32_t *pinteger);
int evtag_unmarshal_fixed(struct evbuffer *src, uint8_t need_tag, void *data,
size_t len);
int evtag_unmarshal_string(struct evbuffer *evbuf, uint8_t need_tag,
char **pstring);
int evtag_unmarshal_timeval(struct evbuffer *evbuf, uint8_t need_tag,
struct timeval *ptv);
#ifdef __cplusplus
}
#endif