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74 lines
1.7 KiB
74 lines
1.7 KiB
#include <unistd.h> |
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#include <fcntl.h> |
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#include <errno.h> |
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#include "io_internal.h" |
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#ifdef HAVE_KQUEUE |
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#include <sys/types.h> |
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#include <sys/event.h> |
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#include <sys/time.h> |
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#endif |
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#ifdef HAVE_EPOLL |
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#include <inttypes.h> |
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#include <sys/epoll.h> |
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#endif |
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#ifdef HAVE_SIGIO |
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#include <sys/poll.h> |
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#endif |
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#ifdef HAVE_DEVPOLL |
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#include <sys/types.h> |
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#include <sys/socket.h> |
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#include <sys/devpoll.h> |
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#endif |
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void io_wantwrite(int64 d) { |
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int newfd; |
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io_entry* e=array_get(&io_fds,sizeof(io_entry),d); |
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if (!e || e->wantwrite) return; |
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newfd=(!e->wantread && !e->wantwrite); |
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io_wanted_fds+=newfd; |
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#ifdef HAVE_EPOLL |
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if (io_waitmode==EPOLL) { |
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struct epoll_event x; |
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x.events=EPOLLOUT; |
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if (e->wantread) x.events|=EPOLLIN; |
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x.data.fd=d; |
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epoll_ctl(io_master,newfd?EPOLL_CTL_ADD:EPOLL_CTL_MOD,d,&x); |
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} |
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#endif |
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#ifdef HAVE_KQUEUE |
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if (io_waitmode==KQUEUE) { |
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struct kevent kev; |
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struct timespec ts; |
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EV_SET(&kev, d, EVFILT_WRITE, EV_ADD|EV_ENABLE, 0, 0, 0); |
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ts.tv_sec=0; ts.tv_nsec=0; |
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kevent(io_master,&kev,1,0,0,&ts); |
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} |
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#endif |
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#ifdef HAVE_DEVPOLL |
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if (io_waitmode==DEVPOLL) { |
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struct pollfd x; |
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x.fd=d; |
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x.events=POLLOUT; |
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if (e->wantread) x.events|=POLLIN; |
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write(io_master,&x,sizeof(x)); |
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} |
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#endif |
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#ifdef HAVE_SIGIO |
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if (io_waitmode==_SIGIO) { |
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struct pollfd p; |
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p.fd=d; |
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p.events=POLLOUT; |
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switch (poll(&p,1,0)) { |
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case 1: e->canwrite=1; break; |
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case 0: e->canwrite=0; break; |
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case -1: return; |
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} |
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if (e->canwrite) { |
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debug_printf(("io_wantwrite: enqueueing %lld in normal write queue before %ld\n",d,first_readable)); |
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e->next_write=first_writeable; |
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first_writeable=d; |
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} |
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} |
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#endif |
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e->wantwrite=1; |
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}
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