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apr_arch_file_io.h
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00001 /* Licensed to the Apache Software Foundation (ASF) under one or more
00002  * contributor license agreements.  See the NOTICE file distributed with
00003  * this work for additional information regarding copyright ownership.
00004  * The ASF licenses this file to You under the Apache License, Version 2.0
00005  * (the "License"); you may not use this file except in compliance with
00006  * the License.  You may obtain a copy of the License at
00007  *
00008  *     http://www.apache.org/licenses/LICENSE-2.0
00009  *
00010  * Unless required by applicable law or agreed to in writing, software
00011  * distributed under the License is distributed on an "AS IS" BASIS,
00012  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  * See the License for the specific language governing permissions and
00014  * limitations under the License.
00015  */
00016 
00017 #ifndef FILE_IO_H
00018 #define FILE_IO_H
00019 
00020 #include "apr_private.h"
00021 #include "apr_general.h"
00022 #include "apr_thread_mutex.h"
00023 #include "apr_file_io.h"
00024 #include "apr_file_info.h"
00025 #include "apr_errno.h"
00026 #include "apr_poll.h"
00027 
00028 /* We have an implementation of mkstemp but it's not very multi-threading 
00029  * friendly & is part of the POSIX emulation rather than native so don't
00030  * use it.
00031  */
00032 #undef HAVE_MKSTEMP
00033 
00034 #define APR_FILE_DEFAULT_BUFSIZE 4096
00035 #define APR_FILE_BUFSIZE APR_FILE_DEFAULT_BUFSIZE
00036 
00037 struct apr_file_t {
00038     apr_pool_t *pool;
00039     HFILE filedes;
00040     char * fname;
00041     int isopen;
00042     int buffered;
00043     int eof_hit;
00044     apr_int32_t flags;
00045     int timeout;
00046     int pipe;
00047     HEV pipeSem;
00048     enum { BLK_UNKNOWN, BLK_OFF, BLK_ON } blocking;
00049 
00050     /* Stuff for buffered mode */
00051     char *buffer;
00052     apr_size_t bufsize;        /* Read/Write position in buffer             */
00053     apr_size_t bufpos;         /* Read/Write position in buffer             */
00054     unsigned long dataRead;    /* amount of valid data read into buffer     */
00055     int direction;             /* buffer being used for 0 = read, 1 = write */
00056     unsigned long filePtr;     /* position in file of handle                */
00057     apr_thread_mutex_t *mutex; /* mutex semaphore, must be owned to access
00058                                   the above fields                          */
00059 };
00060 
00061 struct apr_dir_t {
00062     apr_pool_t *pool;
00063     char *dirname;
00064     ULONG handle;
00065     FILEFINDBUF3 entry;
00066     int validentry;
00067 };
00068 
00069 apr_status_t apr_file_cleanup(void *);
00070 apr_status_t apr_os2_time_to_apr_time(apr_time_t *result, FDATE os2date, 
00071                                       FTIME os2time);
00072 apr_status_t apr_apr_time_to_os2_time(FDATE *os2date, FTIME *os2time,
00073                                       apr_time_t aprtime);
00074 
00075 /* see win32/fileio.h for description of these */
00076 extern const char c_is_fnchar[256];
00077 
00078 #define IS_FNCHAR(c) c_is_fnchar[(unsigned char)c]
00079 
00080 apr_status_t filepath_root_test(char *path, apr_pool_t *p);
00081 apr_status_t filepath_drive_get(char **rootpath, char drive, 
00082                                 apr_int32_t flags, apr_pool_t *p);
00083 apr_status_t filepath_root_case(char **rootpath, char *root, apr_pool_t *p);
00084 
00085 #endif  /* ! FILE_IO_H */
00086