1 #ifndef _FDEVENT_H_ 2 #define _FDEVENT_H_ 3 #include "first.h" 4 5 #include "base_decls.h" 6 7 struct fdevents; /* declaration */ 8 typedef struct fdevents fdevents; 9 10 typedef handler_t (*fdevent_handler)(struct server *srv, void *ctx, int revents); 11 12 struct fdnode_st { 13 fdevent_handler handler; 14 void *ctx; 15 int fd; 16 int events; 17 int fde_ndx; 18 #ifdef HAVE_LIBEV 19 void *handler_ctx; 20 #endif 21 }; 22 23 /* These must match POLL* values from operating system headers */ 24 25 #define FDEVENT_IN 0x0001 26 #define FDEVENT_PRI 0x0002 27 #define FDEVENT_OUT 0x0004 28 #define FDEVENT_ERR 0x0008 29 #define FDEVENT_HUP 0x0010 30 #define FDEVENT_NVAL 0x0020 31 #if defined(__sun) && defined(__SVR4) /* Solaris */ 32 #define FDEVENT_RDHUP 0x4000 33 #else 34 #define FDEVENT_RDHUP 0x2000 35 #endif 36 37 #define FDEVENT_STREAM_REQUEST BV(0) 38 #define FDEVENT_STREAM_REQUEST_BUFMIN BV(1) 39 #define FDEVENT_STREAM_REQUEST_POLLRDHUP BV(12) 40 #define FDEVENT_STREAM_REQUEST_TCP_FIN BV(13) 41 #define FDEVENT_STREAM_REQUEST_BACKEND_SHUT_WR BV(14) 42 #define FDEVENT_STREAM_REQUEST_POLLIN BV(15) 43 44 #define FDEVENT_STREAM_RESPONSE BV(0) 45 #define FDEVENT_STREAM_RESPONSE_BUFMIN BV(1) 46 #define FDEVENT_STREAM_RESPONSE_POLLRDHUP BV(15) 47 48 __attribute_cold__ 49 int fdevent_config(server *srv); 50 51 __attribute_cold__ 52 const char * fdevent_show_event_handlers(void); 53 54 __attribute_cold__ 55 fdevents *fdevent_init(struct server *srv); 56 57 __attribute_cold__ 58 int fdevent_reset(fdevents *ev); /* "init" after fork() */ 59 60 __attribute_cold__ 61 void fdevent_free(fdevents *ev); 62 63 #define fdevent_fdnode_interest(fdn) (NULL != (fdn) ? (fdn)->events : 0) 64 void fdevent_fdnode_event_del(fdevents *ev, fdnode *fdn); 65 void fdevent_fdnode_event_set(fdevents *ev, fdnode *fdn, int events); 66 void fdevent_fdnode_event_add(fdevents *ev, fdnode *fdn, int event); 67 void fdevent_fdnode_event_clr(fdevents *ev, fdnode *fdn, int event); 68 69 int fdevent_poll(fdevents *ev, int timeout_ms); 70 71 fdnode * fdevent_register(fdevents *ev, int fd, fdevent_handler handler, void *ctx); 72 void fdevent_unregister(fdevents *ev, int fd); 73 void fdevent_sched_close(fdevents *ev, int fd, int issock); 74 75 void fdevent_setfd_cloexec(int fd); 76 void fdevent_clrfd_cloexec(int fd); 77 int fdevent_fcntl_set_nb(fdevents *ev, int fd); 78 int fdevent_fcntl_set_nb_cloexec(fdevents *ev, int fd); 79 int fdevent_fcntl_set_nb_cloexec_sock(fdevents *ev, int fd); 80 int fdevent_socket_cloexec(int domain, int type, int protocol); 81 int fdevent_socket_nb_cloexec(int domain, int type, int protocol); 82 int fdevent_open_cloexec(const char *pathname, int symlinks, int flags, mode_t mode); 83 int fdevent_mkstemp_append(char *path); 84 85 struct sockaddr; 86 int fdevent_accept_listenfd(int listenfd, struct sockaddr *addr, size_t *addrlen); 87 88 char ** fdevent_environ(void); 89 int fdevent_open_devnull(void); 90 int fdevent_open_dirname(char *path, int symlinks); 91 int fdevent_set_stdin_stdout_stderr(int fdin, int fdout, int fderr); 92 pid_t fdevent_fork_execve(const char *name, char *argv[], char *envp[], int fdin, int fdout, int fderr, int dfd); 93 int fdevent_open_logger(const char *logger); 94 int fdevent_cycle_logger(const char *logger, int *curfd); 95 int fdevent_reaped_logger_pipe(pid_t pid); 96 int fdevent_waitpid_logger_pipe_pid(pid_t pid, time_t ts); 97 void fdevent_restart_logger_pipes(time_t ts); 98 void fdevent_close_logger_pipes(void); 99 void fdevent_breakagelog_logger_pipe(int fd); 100 void fdevent_clr_logger_pipe_pids(void); 101 102 ssize_t fdevent_socket_read_discard (int fd, char *buf, size_t sz, int family, int so_type); 103 104 int fdevent_ioctl_fionread (int fd, int fdfmt, int *toread); 105 106 int fdevent_connect_status(int fd); 107 108 /* fd must be TCP socket (AF_INET, AF_INET6), end-of-stream recv() 0 bytes */ 109 int fdevent_is_tcp_half_closed(int fd); 110 int fdevent_set_tcp_nodelay (const int fd, const int opt); 111 112 int fdevent_set_so_reuseaddr (const int fd, const int opt); 113 114 #endif 115