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apr_poll.h

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00001 /* Copyright 2000-2004 The Apache Software Foundation 00002 * 00003 * Licensed under the Apache License, Version 2.0 (the "License"); 00004 * you may not use this file except in compliance with the License. 00005 * You may obtain a copy of the License at 00006 * 00007 * http://www.apache.org/licenses/LICENSE-2.0 00008 * 00009 * Unless required by applicable law or agreed to in writing, software 00010 * distributed under the License is distributed on an "AS IS" BASIS, 00011 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00012 * See the License for the specific language governing permissions and 00013 * limitations under the License. 00014 */ 00015 00016 #ifndef APR_POLL_H 00017 #define APR_POLL_H 00018 00022 #include "apr.h" 00023 #include "apr_pools.h" 00024 #include "apr_errno.h" 00025 #include "apr_inherit.h" 00026 #include "apr_file_io.h" 00027 #include "apr_network_io.h" 00028 00029 #if APR_HAVE_NETINET_IN_H 00030 #include <netinet/in.h> 00031 #endif 00032 00033 #ifdef __cplusplus 00034 extern "C" { 00035 #endif /* __cplusplus */ 00036 00047 #define APR_POLLIN 0x001 00048 #define APR_POLLPRI 0x002 00049 #define APR_POLLOUT 0x004 00050 #define APR_POLLERR 0x010 00051 #define APR_POLLHUP 0x020 00052 #define APR_POLLNVAL 0x040 00056 typedef enum { 00057 APR_NO_DESC, 00058 APR_POLL_SOCKET, 00059 APR_POLL_FILE, 00060 APR_POLL_LASTDESC 00061 } apr_datatype_e ; 00062 00064 typedef union { 00065 apr_file_t *f; 00066 apr_socket_t *s; 00067 } apr_descriptor; 00068 00070 typedef struct apr_pollfd_t apr_pollfd_t; 00071 00073 struct apr_pollfd_t { 00074 apr_pool_t *p; 00075 apr_datatype_e desc_type; 00076 apr_int16_t reqevents; 00077 apr_int16_t rtnevents; 00078 apr_descriptor desc; 00079 void *client_data; 00080 }; 00081 00089 APR_DECLARE(apr_status_t) apr_poll_setup(apr_pollfd_t **new_poll, 00090 apr_int32_t num, 00091 apr_pool_t *cont); 00092 00110 APR_DECLARE(apr_status_t) apr_poll(apr_pollfd_t *aprset, apr_int32_t numsock, 00111 apr_int32_t *nsds, 00112 apr_interval_time_t timeout); 00113 00126 APR_DECLARE(apr_status_t) apr_poll_socket_add(apr_pollfd_t *aprset, 00127 apr_socket_t *sock, 00128 apr_int16_t event); 00129 00142 APR_DECLARE(apr_status_t) apr_poll_socket_mask(apr_pollfd_t *aprset, 00143 apr_socket_t *sock, 00144 apr_int16_t events); 00151 APR_DECLARE(apr_status_t) apr_poll_socket_remove(apr_pollfd_t *aprset, 00152 apr_socket_t *sock); 00153 00165 APR_DECLARE(apr_status_t) apr_poll_socket_clear(apr_pollfd_t *aprset, 00166 apr_int16_t events); 00167 00184 APR_DECLARE(apr_status_t) apr_poll_revents_get(apr_int16_t *event, 00185 apr_socket_t *sock, 00186 apr_pollfd_t *aprset); 00187 00188 /* General-purpose poll API for arbitrarily large numbers of 00189 * file descriptors 00190 */ 00191 00193 typedef struct apr_pollset_t apr_pollset_t; 00194 00203 APR_DECLARE(apr_status_t) apr_pollset_create(apr_pollset_t **pollset, 00204 apr_uint32_t size, 00205 apr_pool_t *p, 00206 apr_uint32_t flags); 00207 00212 APR_DECLARE(apr_status_t) apr_pollset_destroy(apr_pollset_t *pollset); 00213 00222 APR_DECLARE(apr_status_t) apr_pollset_add(apr_pollset_t *pollset, 00223 const apr_pollfd_t *descriptor); 00224 00230 APR_DECLARE(apr_status_t) apr_pollset_remove(apr_pollset_t *pollset, 00231 const apr_pollfd_t *descriptor); 00232 00240 APR_DECLARE(apr_status_t) apr_pollset_poll(apr_pollset_t *pollset, 00241 apr_interval_time_t timeout, 00242 apr_int32_t *num, 00243 const apr_pollfd_t **descriptors); 00244 00247 #ifdef __cplusplus 00248 } 00249 #endif 00250 00251 #endif /* ! APR_POLL_H */ 00252

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