mirror/libowfat
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

more kqueue/epoll

Browse Source
This commit is contained in:
leitner 2003-09-06 01:15:00 +00:00
parent c55706c7da
commit d213018a01
5 changed files with 94 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
GNUmakefile
View File

@ -60,7 +60,7 @@ $(DNS_OBJS): dns.h stralloc.h taia.h tai.h uint64.h iopause.h
$(CASE_OBJS): case.h
$(ARRAY_OBJS): uint64.h array.h
$(MULT_OBJS): uint64.h uint32.h uint16.h safemult.h
$(IO_OBJS): uint64.h array.h io.h io_internal.h taia.h tai.h
$(IO_OBJS): uint64.h array.h io.h io_internal.h taia.h tai.h haveepoll.h havekqueue.h
iopause.o: select.h
openreadclose.o readclose.o: readclose.h

18
io/io_fd.c
View File

@ -2,6 +2,12 @@
#include <fcntl.h>
#include "io_internal.h"
#ifdef HAVE_KQUEUE
#include <sys/event.h>
#endif
#ifdef HAVE_EPOLL
#include <sys/epoll.h>
#endif
/* put d on internal data structure, return 1 on success, 0 on error */
int io_fd(int64 d) {
@ -13,5 +19,17 @@ int io_fd(int64 d) {
e->inuse=1;
if (r&O_NDELAY) e->nonblock=1;
e->next_read=e->next_write=-1;
if (io_waitmode==UNDECIDED) {
#if defined(HAVE_EPOLL)
io_master=epoll_create(1000);
if (io_master!=-1) io_waitmode=EPOLL;
#endif
#if defined(HAVE_KQUEUE)
if (io_waitmode==POLL) { /* who knows, maybe someone supports both one day */
io_master=kqueue();
if (io_master!=-1) io_waitmode=KQUEUE;
}
#endif
}
return 1;
}

30
io/io_wantread.c
View File

@ -2,10 +2,38 @@
#include <fcntl.h>
#include <errno.h>
#include "io_internal.h"
#ifdef HAVE_KQUEUE
#include <sys/types.h>
#include <sys/event.h>
#include <sys/time.h>
#endif
#ifdef HAVE_EPOLL
#include <sys/epoll.h>
#endif
void io_wantread(int64 d) {
int newfd;
io_entry* e=array_get(&io_fds,sizeof(io_entry),d);
if (!e) return;
if (!e->wantread && !e->wantwrite) ++io_wanted_fds;
newfd=(!e->wantread && !e->wantwrite);
io_wanted_fds+=newfd;
#ifdef HAVE_EPOLL
if (io_waitmode==EPOLL) {
struct epoll_event x;
x.events=EPOLLIN;
if (e->wantwrite) x.events|=EPOLLOUT;
x.data.fd=d;
epoll_ctl(io_master,newfd?EPOLL_CTL_ADD:EPOLL_CTL_MOD,d,&x);
}
#endif
#ifdef HAVE_KQUEUE
if (io_waitmode==KQUEUE) {
struct kevent kev;
struct timespec ts;
EV_SET(&kev, d, EVFILT_READ, EV_ADD|EV_ENABLE, 0, 0, 0);
ts.tv_sec=0; ts.tv_nsec=0;
kevent(io_master,&kev,1,0,0,&ts);
}
#endif
e->wantread=1;
}

30
io/io_wantwrite.c
View File

@ -2,10 +2,38 @@
#include <fcntl.h>
#include <errno.h>
#include "io_internal.h"
#ifdef HAVE_KQUEUE
#include <sys/types.h>
#include <sys/event.h>
#include <sys/time.h>
#endif
#ifdef HAVE_EPOLL
#include <sys/epoll.h>
#endif
void io_wantwrite(int64 d) {
int newfd;
io_entry* e=array_get(&io_fds,sizeof(io_entry),d);
if (!e) return;
if (!e->wantread && !e->wantwrite) ++io_wanted_fds;
newfd=(!e->wantread && !e->wantwrite);
io_wanted_fds+=newfd;
#ifdef HAVE_EPOLL
if (io_waitmode==EPOLL) {
struct epoll_event x;
x.events=EPOLLOUT;
if (e->wantread) x.events|=EPOLLIN;
x.data.fd=d;
epoll_ctl(io_master,newfd?EPOLL_CTL_ADD:EPOLL_CTL_MOD,d,&x);
}
#endif
#ifdef HAVE_KQUEUE
if (io_waitmode==KQUEUE) {
struct kevent kev;
struct timespec ts;
EV_SET(&kev, d, EVFILT_WRITE, EV_ADD|EV_ENABLE, 0, 0, 0);
ts.tv_sec=0; ts.tv_nsec=0;
kevent(io_master,&kev,1,0,0,&ts);
}
#endif
e->wantwrite=1;
}

17
io_internal.h
View File

@ -1,5 +1,7 @@
#include "io.h"
#include "array.h"
#include "haveepoll.h"
#include "havekqueue.h"
typedef struct {
unsigned int wantread:1;
@ -20,4 +22,19 @@ array io_pollfds;
unsigned long first_readable;
unsigned long first_writeable;
enum {
UNDECIDED,
POLL
#ifdef HAVE_KQUEUE
,KQUEUE
#endif
#ifdef HAVE_EPOLL
,EPOLL
#endif
} io_waitmode;
#if defined(HAVE_KQUEUE) || defined(HAVE_EPOLL)
int io_master;
#endif
int64 io_waituntil2(int64 milliseconds);