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WT-2540: Separate stream and file handle methods
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,228 @@ | ||
| /*- | ||
| * Copyright (c) 2014-2016 MongoDB, Inc. | ||
| * Copyright (c) 2008-2014 WiredTiger, Inc. | ||
| * All rights reserved. | ||
| * | ||
| * See the file LICENSE for redistribution information. | ||
| */ | ||
|
|
||
| #include "wt_internal.h" | ||
|
|
||
| /* | ||
| * __notsup_handle_advise -- | ||
| * POSIX fadvise. | ||
| */ | ||
| static int | ||
| __notsup_handle_advise(WT_SESSION_IMPL *session, | ||
| WT_FH *fh, wt_off_t offset, wt_off_t len, int advice) | ||
| { | ||
| WT_UNUSED(session); | ||
| WT_UNUSED(fh); | ||
| WT_UNUSED(offset); | ||
| WT_UNUSED(len); | ||
| WT_UNUSED(advice); | ||
|
|
||
| /* Quietly fail, callers expect not-supported failures. */ | ||
| return (ENOTSUP); | ||
| } | ||
|
|
||
| /* | ||
| * __notsup_handle_allocate -- | ||
| * POSIX fallocate. | ||
| */ | ||
| static int | ||
| __notsup_handle_allocate( | ||
| WT_SESSION_IMPL *session, WT_FH *fh, wt_off_t offset, wt_off_t len) | ||
| { | ||
| WT_UNUSED(offset); | ||
| WT_UNUSED(len); | ||
| WT_RET_MSG(session, ENOTSUP, "%s: handle-allocate", fh->name); | ||
| } | ||
|
|
||
| /* | ||
| * __notsup_handle_close -- | ||
| * ANSI C close/fclose. | ||
| */ | ||
| static int | ||
| __notsup_handle_close(WT_SESSION_IMPL *session, WT_FH *fh) | ||
| { | ||
| WT_RET_MSG(session, ENOTSUP, "%s: handle-close", fh->name); | ||
| } | ||
|
|
||
| /* | ||
| * __notsup_handle_getc -- | ||
| * ANSI C fgetc. | ||
| */ | ||
| static int | ||
| __notsup_handle_getc(WT_SESSION_IMPL *session, WT_FH *fh, int *chp) | ||
| { | ||
| WT_UNUSED(chp); | ||
| WT_RET_MSG(session, ENOTSUP, "%s: handle-getc", fh->name); | ||
| } | ||
|
|
||
| /* | ||
| * __notsup_handle_lock -- | ||
| * Lock/unlock a file. | ||
| */ | ||
| static int | ||
| __notsup_handle_lock(WT_SESSION_IMPL *session, WT_FH *fh, bool lock) | ||
| { | ||
| WT_UNUSED(lock); | ||
| WT_RET_MSG(session, ENOTSUP, "%s: handle-lock", fh->name); | ||
| } | ||
|
|
||
| /* | ||
| * __notsup_handle_map -- | ||
| * Map a file. | ||
| */ | ||
| static int | ||
| __notsup_handle_map(WT_SESSION_IMPL *session, | ||
| WT_FH *fh, void *p, size_t *lenp, void **mappingcookie) | ||
| { | ||
| WT_UNUSED(p); | ||
| WT_UNUSED(lenp); | ||
| WT_UNUSED(mappingcookie); | ||
| WT_RET_MSG(session, ENOTSUP, "%s: handle-map", fh->name); | ||
| } | ||
|
|
||
| /* | ||
| * __notsup_handle_map_discard -- | ||
| * Discard a section of a mapped region. | ||
| */ | ||
| static int | ||
| __notsup_handle_map_discard( | ||
| WT_SESSION_IMPL *session, WT_FH *fh, void *p, size_t len) | ||
| { | ||
| WT_UNUSED(p); | ||
| WT_UNUSED(len); | ||
| WT_RET_MSG(session, ENOTSUP, "%s: handle-map-discard", fh->name); | ||
| } | ||
|
|
||
| /* | ||
| * __notsup_handle_map_preload -- | ||
| * Preload a section of a mapped region. | ||
| */ | ||
| static int | ||
| __notsup_handle_map_preload( | ||
| WT_SESSION_IMPL *session, WT_FH *fh, const void *p, size_t len) | ||
| { | ||
| WT_UNUSED(p); | ||
| WT_UNUSED(len); | ||
| WT_RET_MSG(session, ENOTSUP, "%s: handle-map-preload", fh->name); | ||
| } | ||
|
|
||
| /* | ||
| * __notsup_handle_map_unmap -- | ||
| * Unmap a file. | ||
| */ | ||
| static int | ||
| __notsup_handle_map_unmap(WT_SESSION_IMPL *session, | ||
| WT_FH *fh, void *p, size_t len, void **mappingcookie) | ||
| { | ||
| WT_UNUSED(p); | ||
| WT_UNUSED(len); | ||
| WT_UNUSED(mappingcookie); | ||
| WT_RET_MSG(session, ENOTSUP, "%s: handle-map-unmap", fh->name); | ||
| } | ||
|
|
||
| /* | ||
| * __notsup_handle_printf -- | ||
| * ANSI C vfprintf. | ||
| */ | ||
| static int | ||
| __notsup_handle_printf( | ||
| WT_SESSION_IMPL *session, WT_FH *fh, const char *fmt, va_list ap) | ||
| { | ||
| WT_UNUSED(fmt); | ||
| WT_UNUSED(ap); | ||
| WT_RET_MSG(session, ENOTSUP, "%s: handle-printf", fh->name); | ||
| } | ||
|
|
||
| /* | ||
| * __notsup_handle_read -- | ||
| * POSIX pread. | ||
| */ | ||
| static int | ||
| __notsup_handle_read( | ||
| WT_SESSION_IMPL *session, WT_FH *fh, wt_off_t offset, size_t len, void *buf) | ||
| { | ||
| WT_UNUSED(offset); | ||
| WT_UNUSED(len); | ||
| WT_UNUSED(buf); | ||
| WT_RET_MSG(session, ENOTSUP, "%s: handle-read", fh->name); | ||
| } | ||
|
|
||
| /* | ||
| * __notsup_handle_size -- | ||
| * Get the size of a file in bytes, by file handle. | ||
| */ | ||
| static int | ||
| __notsup_handle_size(WT_SESSION_IMPL *session, WT_FH *fh, wt_off_t *sizep) | ||
| { | ||
| WT_UNUSED(sizep); | ||
| WT_RET_MSG(session, ENOTSUP, "%s: handle-size", fh->name); | ||
| } | ||
|
|
||
| /* | ||
| * __notsup_handle_sync -- | ||
| * POSIX fflush/fsync. | ||
| */ | ||
| static int | ||
| __notsup_handle_sync(WT_SESSION_IMPL *session, WT_FH *fh, bool block) | ||
| { | ||
| WT_UNUSED(block); | ||
| WT_RET_MSG(session, ENOTSUP, "%s: handle-sync", fh->name); | ||
| } | ||
|
|
||
| /* | ||
| * __notsup_handle_truncate -- | ||
| * POSIX ftruncate. | ||
| */ | ||
| static int | ||
| __notsup_handle_truncate(WT_SESSION_IMPL *session, WT_FH *fh, wt_off_t len) | ||
| { | ||
| WT_UNUSED(len); | ||
| WT_RET_MSG(session, ENOTSUP, "%s: handle-truncate", fh->name); | ||
| } | ||
|
|
||
| /* | ||
| * __notsup_handle_write -- | ||
| * POSIX pwrite. | ||
| */ | ||
| static int | ||
| __notsup_handle_write(WT_SESSION_IMPL *session, | ||
| WT_FH *fh, wt_off_t offset, size_t len, const void *buf) | ||
| { | ||
| WT_UNUSED(offset); | ||
| WT_UNUSED(len); | ||
| WT_UNUSED(buf); | ||
| WT_RET_MSG(session, ENOTSUP, "%s: handle-write", fh->name); | ||
| } | ||
|
|
||
| /* | ||
| * __wt_fh_method_init -- | ||
| * Initialize the WT_FH structure's methods to not-supported. | ||
| */ | ||
| void | ||
| __wt_fh_method_init(WT_FH *fh) | ||
| { | ||
| /* | ||
| * Set up the initial set of handle methods to standard "not-supported" | ||
| * functions, the underlying open functions turn on supported functions. | ||
| */ | ||
| fh->fh_advise = __notsup_handle_advise; | ||
| fh->fh_allocate = __notsup_handle_allocate; | ||
| fh->fh_close = __notsup_handle_close; | ||
| fh->fh_getc = __notsup_handle_getc; | ||
| fh->fh_lock = __notsup_handle_lock; | ||
| fh->fh_map = __notsup_handle_map; | ||
| fh->fh_map_discard = __notsup_handle_map_discard; | ||
| fh->fh_map_preload = __notsup_handle_map_preload; | ||
| fh->fh_map_unmap = __notsup_handle_map_unmap; | ||
| fh->fh_printf = __notsup_handle_printf; | ||
| fh->fh_read = __notsup_handle_read; | ||
| fh->fh_size = __notsup_handle_size; | ||
| fh->fh_sync = __notsup_handle_sync; | ||
| fh->fh_truncate = __notsup_handle_truncate; | ||
| fh->fh_write = __notsup_handle_write; | ||
| } |
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