lighttpd 1.4.x
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222 lines
4.8 KiB
222 lines
4.8 KiB
#ifndef _FDEVENT_H_ |
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#define _FDEVENT_H_ |
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#ifdef HAVE_CONFIG_H |
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#include "config.h" |
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#endif |
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#include "settings.h" |
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#include "bitset.h" |
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/* select event-system */ |
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#if defined(HAVE_EPOLL_CTL) && defined(HAVE_SYS_EPOLL_H) |
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# if defined HAVE_STDINT_H |
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# include <stdint.h> |
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# endif |
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# define USE_LINUX_EPOLL |
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# include <sys/epoll.h> |
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#endif |
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/* MacOS 10.3.x has poll.h under /usr/include/, all other unixes |
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* under /usr/include/sys/ */ |
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#if defined HAVE_POLL && (defined(HAVE_SYS_POLL_H) || defined(HAVE_POLL_H)) |
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# define USE_POLL |
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# ifdef HAVE_POLL_H |
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# include <poll.h> |
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# else |
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# include <sys/poll.h> |
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# endif |
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# if defined HAVE_SIGTIMEDWAIT && defined(__linux__) |
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# define USE_LINUX_SIGIO |
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# include <signal.h> |
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# endif |
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#endif |
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#if defined HAVE_SELECT |
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# ifdef __WIN32 |
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# include <winsock2.h> |
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# endif |
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# define USE_SELECT |
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# ifdef HAVE_SYS_SELECT_H |
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# include <sys/select.h> |
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# endif |
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#endif |
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#if defined HAVE_SYS_DEVPOLL_H && defined(__sun) |
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# define USE_SOLARIS_DEVPOLL |
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# include <sys/devpoll.h> |
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#endif |
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#if defined HAVE_SYS_EVENT_H && defined HAVE_KQUEUE |
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# define USE_FREEBSD_KQUEUE |
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# include <sys/event.h> |
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#endif |
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#if defined HAVE_SYS_PORT_H && defined HAVE_PORT_CREATE |
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# define USE_SOLARIS_PORT |
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# include <sys/port.h> |
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#endif |
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typedef handler_t (*fdevent_handler)(void *srv, void *ctx, int revents); |
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#define FDEVENT_IN BV(0) |
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#define FDEVENT_PRI BV(1) |
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#define FDEVENT_OUT BV(2) |
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#define FDEVENT_ERR BV(3) |
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#define FDEVENT_HUP BV(4) |
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#define FDEVENT_NVAL BV(5) |
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typedef enum { FD_EVENT_TYPE_UNSET = -1, |
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FD_EVENT_TYPE_CONNECTION, |
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FD_EVENT_TYPE_FCGI_CONNECTION, |
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FD_EVENT_TYPE_DIRWATCH, |
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FD_EVENT_TYPE_CGI_CONNECTION |
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} fd_event_t; |
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typedef enum { FDEVENT_HANDLER_UNSET, |
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FDEVENT_HANDLER_SELECT, |
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FDEVENT_HANDLER_POLL, |
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FDEVENT_HANDLER_LINUX_RTSIG, |
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FDEVENT_HANDLER_LINUX_SYSEPOLL, |
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FDEVENT_HANDLER_SOLARIS_DEVPOLL, |
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FDEVENT_HANDLER_FREEBSD_KQUEUE, |
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FDEVENT_HANDLER_SOLARIS_PORT |
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} fdevent_handler_t; |
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/** |
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* a mapping from fd to connection structure |
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* |
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*/ |
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typedef struct { |
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int fd; /**< the fd */ |
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void *conn; /**< a reference the corresponding data-structure */ |
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fd_event_t fd_type; /**< type of the fd */ |
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int events; /**< registered events */ |
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int revents; |
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} fd_conn; |
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typedef struct { |
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fd_conn *ptr; |
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size_t size; |
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size_t used; |
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} fd_conn_buffer; |
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/** |
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* array of unused fd's |
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* |
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*/ |
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typedef struct _fdnode { |
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fdevent_handler handler; |
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void *ctx; |
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int fd; |
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struct _fdnode *prev, *next; |
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} fdnode; |
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typedef struct { |
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int *ptr; |
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size_t used; |
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size_t size; |
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} buffer_int; |
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/** |
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* fd-event handler for select(), poll() and rt-signals on Linux 2.4 |
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* |
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*/ |
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typedef struct fdevents { |
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fdevent_handler_t type; |
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fdnode **fdarray; |
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size_t maxfds; |
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#ifdef USE_LINUX_SIGIO |
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int in_sigio; |
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int signum; |
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sigset_t sigset; |
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siginfo_t siginfo; |
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bitset *sigbset; |
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#endif |
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#ifdef USE_LINUX_EPOLL |
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int epoll_fd; |
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struct epoll_event *epoll_events; |
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#endif |
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#ifdef USE_POLL |
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struct pollfd *pollfds; |
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size_t size; |
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size_t used; |
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buffer_int unused; |
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#endif |
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#ifdef USE_SELECT |
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fd_set select_read; |
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fd_set select_write; |
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fd_set select_error; |
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fd_set select_set_read; |
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fd_set select_set_write; |
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fd_set select_set_error; |
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int select_max_fd; |
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#endif |
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#ifdef USE_SOLARIS_DEVPOLL |
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int devpoll_fd; |
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struct pollfd *devpollfds; |
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#endif |
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#ifdef USE_FREEBSD_KQUEUE |
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int kq_fd; |
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struct kevent *kq_results; |
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bitset *kq_bevents; |
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#endif |
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#ifdef USE_SOLARIS_PORT |
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int port_fd; |
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#endif |
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int (*reset)(struct fdevents *ev); |
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void (*free)(struct fdevents *ev); |
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int (*event_add)(struct fdevents *ev, int fde_ndx, int fd, int events); |
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int (*event_del)(struct fdevents *ev, int fde_ndx, int fd); |
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int (*event_get_revent)(struct fdevents *ev, size_t ndx); |
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int (*event_get_fd)(struct fdevents *ev, size_t ndx); |
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int (*event_next_fdndx)(struct fdevents *ev, int ndx); |
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int (*poll)(struct fdevents *ev, int timeout_ms); |
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int (*fcntl_set)(struct fdevents *ev, int fd); |
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} fdevents; |
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fdevents *fdevent_init(size_t maxfds, fdevent_handler_t type); |
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int fdevent_reset(fdevents *ev); |
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void fdevent_free(fdevents *ev); |
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int fdevent_event_add(fdevents *ev, int *fde_ndx, int fd, int events); |
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int fdevent_event_del(fdevents *ev, int *fde_ndx, int fd); |
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int fdevent_event_get_revent(fdevents *ev, size_t ndx); |
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int fdevent_event_get_fd(fdevents *ev, size_t ndx); |
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fdevent_handler fdevent_get_handler(fdevents *ev, int fd); |
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void * fdevent_get_context(fdevents *ev, int fd); |
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int fdevent_event_next_fdndx(fdevents *ev, int ndx); |
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int fdevent_poll(fdevents *ev, int timeout_ms); |
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int fdevent_register(fdevents *ev, int fd, fdevent_handler handler, void *ctx); |
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int fdevent_unregister(fdevents *ev, int fd); |
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int fdevent_fcntl_set(fdevents *ev, int fd); |
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int fdevent_select_init(fdevents *ev); |
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int fdevent_poll_init(fdevents *ev); |
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int fdevent_linux_rtsig_init(fdevents *ev); |
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int fdevent_linux_sysepoll_init(fdevents *ev); |
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int fdevent_solaris_devpoll_init(fdevents *ev); |
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int fdevent_freebsd_kqueue_init(fdevents *ev); |
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#endif |
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