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Root/sqlite/os_os2.h

1/*
2** 2004 May 22
3**
4** The author disclaims copyright to this source code. In place of
5** a legal notice, here is a blessing:
6**
7** May you do good and not evil.
8** May you find forgiveness for yourself and forgive others.
9** May you share freely, never taking more than you give.
10**
11******************************************************************************
12**
13** This header file defined OS-specific features for OS/2.
14*/
15#ifndef _SQLITE_OS_OS2_H_
16#define _SQLITE_OS_OS2_H_
17
18/*
19** standard include files.
20*/
21#include <sys/types.h>
22#include <sys/stat.h>
23#include <fcntl.h>
24#include <unistd.h>
25
26/*
27** Macros used to determine whether or not to use threads. The
28** SQLITE_UNIX_THREADS macro is defined if we are synchronizing for
29** Posix threads and SQLITE_W32_THREADS is defined if we are
30** synchronizing using Win32 threads.
31*/
32/* this mutex implementation only available with EMX */
33#if defined(THREADSAFE) && THREADSAFE
34# include <sys/builtin.h>
35# include <sys/smutex.h>
36# define SQLITE_OS2_THREADS 1
37#endif
38
39/*
40** The OsFile structure is a operating-system independing representation
41** of an open file handle. It is defined differently for each architecture.
42**
43** This is the definition for Unix.
44**
45** OsFile.locktype takes one of the values SHARED_LOCK, RESERVED_LOCK,
46** PENDING_LOCK or EXCLUSIVE_LOCK.
47*/
48typedef struct OsFile OsFile;
49struct OsFile {
50 int h; /* The file descriptor (LHANDLE) */
51 int locked; /* True if this user holds the lock */
52 int delOnClose; /* True if file is to be deleted on close */
53 char *pathToDel; /* Name of file to delete on close */
54 unsigned char locktype; /* The type of lock held on this fd */
55 unsigned char isOpen; /* True if needs to be closed */
56 unsigned char fullSync;
57};
58
59/*
60** Maximum number of characters in a temporary file name
61*/
62#define SQLITE_TEMPNAME_SIZE 200
63
64/*
65** Minimum interval supported by sqlite3OsSleep().
66*/
67#define SQLITE_MIN_SLEEP_MS 1
68
69#ifndef SQLITE_DEFAULT_FILE_PERMISSIONS
70# define SQLITE_DEFAULT_FILE_PERMISSIONS 0600
71#endif
72
73#endif /* _SQLITE_OS_OS2_H_ */

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