xref: /aosp_15_r20/external/cronet/third_party/apache-portable-runtime/src/include/arch/os2/apr_arch_file_io.h (revision 6777b5387eb2ff775bb5750e3f5d96f37fb7352b)
1 /* Licensed to the Apache Software Foundation (ASF) under one or more
2  * contributor license agreements.  See the NOTICE file distributed with
3  * this work for additional information regarding copyright ownership.
4  * The ASF licenses this file to You under the Apache License, Version 2.0
5  * (the "License"); you may not use this file except in compliance with
6  * the License.  You may obtain a copy of the License at
7  *
8  *     http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef FILE_IO_H
18 #define FILE_IO_H
19 
20 #include "apr_private.h"
21 #include "apr_general.h"
22 #include "apr_thread_mutex.h"
23 #include "apr_file_io.h"
24 #include "apr_file_info.h"
25 #include "apr_errno.h"
26 #include "apr_poll.h"
27 
28 /* We have an implementation of mkstemp but it's not very multi-threading
29  * friendly & is part of the POSIX emulation rather than native so don't
30  * use it.
31  */
32 #undef HAVE_MKSTEMP
33 
34 #define APR_FILE_DEFAULT_BUFSIZE 4096
35 #define APR_FILE_BUFSIZE APR_FILE_DEFAULT_BUFSIZE
36 
37 struct apr_file_t {
38     apr_pool_t *pool;
39     HFILE filedes;
40     char * fname;
41     int isopen;
42     int buffered;
43     int eof_hit;
44     apr_int32_t flags;
45     int timeout;
46     int pipe;
47     HEV pipeSem;
48     enum { BLK_UNKNOWN, BLK_OFF, BLK_ON } blocking;
49 
50     /* Stuff for buffered mode */
51     char *buffer;
52     apr_size_t bufsize;        /* Read/Write position in buffer             */
53     apr_size_t bufpos;         /* Read/Write position in buffer             */
54     unsigned long dataRead;    /* amount of valid data read into buffer     */
55     int direction;             /* buffer being used for 0 = read, 1 = write */
56     unsigned long filePtr;     /* position in file of handle                */
57     apr_thread_mutex_t *mutex; /* mutex semaphore, must be owned to access
58                                   the above fields                          */
59 };
60 
61 struct apr_dir_t {
62     apr_pool_t *pool;
63     char *dirname;
64     ULONG handle;
65     FILEFINDBUF3 entry;
66     int validentry;
67 };
68 
69 apr_status_t apr_file_cleanup(void *);
70 apr_status_t apr_os2_time_to_apr_time(apr_time_t *result, FDATE os2date,
71                                       FTIME os2time);
72 apr_status_t apr_apr_time_to_os2_time(FDATE *os2date, FTIME *os2time,
73                                       apr_time_t aprtime);
74 
75 /* see win32/fileio.h for description of these */
76 extern const char c_is_fnchar[256];
77 
78 #define IS_FNCHAR(c) c_is_fnchar[(unsigned char)c]
79 
80 apr_status_t filepath_root_test(char *path, apr_pool_t *p);
81 apr_status_t filepath_drive_get(char **rootpath, char drive,
82                                 apr_int32_t flags, apr_pool_t *p);
83 apr_status_t filepath_root_case(char **rootpath, char *root, apr_pool_t *p);
84 
85 #endif  /* ! FILE_IO_H */
86 
87