projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| cc3fa755 UD |
1 | /*- |
| 2 | * See the file LICENSE for redistribution information. | |
| 3 | * | |
| 4 | * Copyright (c) 1997 | |
| 5 | * Sleepycat Software. All rights reserved. | |
| 6 | * | |
| 7 | * @(#)os_func.h 10.2 (Sleepycat) 10/28/97 | |
| 8 | */ | |
| 9 | ||
| 10 | /* Calls which can be replaced by the application. */ | |
| 11 | struct __db_jumptab { | |
| 12 | void *(*db_calloc) __P((size_t, size_t)); /* DB_FUNC_CALLOC */ | |
| 13 | int (*db_close) __P((int)); /* DB_FUNC_CLOSE */ | |
| 14 | void (*db_dirfree) __P((char **, int)); /* DB_FUNC_DIRFREE */ | |
| 15 | int (*db_dirlist) /* DB_FUNC_DIRLIST */ | |
| 16 | __P((const char *, char ***, int *)); | |
| 17 | int (*db_exists) /* DB_FUNC_EXISTS */ | |
| 18 | __P((const char *, int *)); | |
| 19 | void (*db_free) __P((void *)); /* DB_FUNC_FREE */ | |
| 20 | int (*db_fsync) __P((int)); /* DB_FUNC_FSYNC */ | |
| 21 | int (*db_ioinfo) /* DB_FUNC_IOINFO */ | |
| 22 | __P((const char *, int, off_t *, off_t *)); | |
| 23 | void *(*db_malloc) __P((size_t)); /* DB_FUNC_MALLOC */ | |
| 24 | int (*db_map) /* DB_FUNC_MAP */ | |
| 25 | __P((int, size_t, int, int, void **)); | |
| 26 | int (*db_open) /* DB_FUNC_OPEN */ | |
| 27 | __P((const char *, int, ...)); | |
| 28 | ssize_t (*db_read) __P((int, void *, size_t)); /* DB_FUNC_READ */ | |
| 29 | void *(*db_realloc) __P((void *, size_t)); /* DB_FUNC_REALLOC */ | |
| 30 | int (*db_seek) /* DB_FUNC_SEEK */ | |
| 31 | __P((int, size_t, db_pgno_t, u_long, int)); | |
| 32 | int (*db_sleep) __P((u_long, u_long)); /* DB_FUNC_SLEEP */ | |
| 33 | char *(*db_strdup) __P((const char *)); /* DB_FUNC_STRDUP */ | |
| 34 | int (*db_unlink) __P((const char *)); /* DB_FUNC_UNLINK */ | |
| 35 | int (*db_unmap) __P((void *, size_t)); /* DB_FUNC_UNMAP */ | |
| 36 | ssize_t (*db_write) /* DB_FUNC_WRITE */ | |
| 37 | __P((int, const void *, size_t)); | |
| 38 | int (*db_yield) __P((void)); /* DB_FUNC_YIELD */ | |
| 39 | }; | |
| 40 | ||
| 41 | extern struct __db_jumptab __db_jump; | |
| 42 | ||
| 43 | /* | |
| 44 | * Names used by DB to call through the jump table. | |
| 45 | * | |
| 46 | * The naming scheme goes like this: if the functionality the application can | |
| 47 | * replace is the same as the DB functionality, e.g., calloc, or dirlist, then | |
| 48 | * we use the name __db_XXX, and the application is expected to replace the | |
| 49 | * complete functionality, which may or may not map directly to an ANSI C or | |
| 50 | * POSIX 1003.1 interface. If the functionality that the aplication replaces | |
| 51 | * only underlies what the DB os directory exports to other parts of DB, e.g., | |
| 52 | * read, then the name __os_XXX is used, and the application can only replace | |
| 53 | * the underlying functionality. Under most circumstances, the os directory | |
| 54 | * part of DB is the only code that should use the __os_XXX names, all other | |
| 55 | * parts of DB should be calling __db_XXX functions. | |
| 56 | */ | |
| 57 | #define __db_calloc __db_jump.db_calloc | |
| 58 | #define __os_close __db_jump.db_close /* __db_close is a wrapper. */ | |
| 59 | #define __db_dirfree __db_jump.db_dirfree | |
| 60 | #define __db_dirlist __db_jump.db_dirlist | |
| 61 | #define __db_exists __db_jump.db_exists | |
| 62 | #define __db_free __db_jump.db_free | |
| 63 | #define __os_fsync __db_jump.db_fsync /* __db_fsync is a wrapper. */ | |
| 64 | #define __db_ioinfo __db_jump.db_ioinfo | |
| 65 | #define __db_malloc __db_jump.db_malloc | |
| 66 | #define __db_map __db_jump.db_map | |
| 67 | #define __os_open __db_jump.db_open /* __db_open is a wrapper. */ | |
| 68 | #define __os_read __db_jump.db_read /* __db_read is a wrapper. */ | |
| 69 | #define __db_realloc __db_jump.db_realloc | |
| 70 | #define __db_seek __db_jump.db_seek | |
| 71 | #define __db_sleep __db_jump.db_sleep | |
| 72 | #define __db_strdup __db_jump.db_strdup | |
| 73 | #define __os_unlink __db_jump.db_unlink /* __db_unlink is a wrapper. */ | |
| 74 | #define __db_unmap __db_jump.db_unmap | |
| 75 | #define __os_write __db_jump.db_write /* __db_write is a wrapper. */ | |
| 76 | #define __db_yield __db_jump.db_yield |