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https://github.com/samba-team/samba.git
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6d98076c15
tests, but still needs some more work to ensure we correctly cope with events that may generate both a system inotify event and a internal notify event. The system inotify events won't handle recursion, and don't understand things like streams. This also adds the ntvfs/sysdep/ directory, which is meant for system dependent code that is not tied to a particular ntvfs backend. The inotify code is a good example of that. (This used to be commit eadadbb44adb3c4081d6ff1d85a9b850a0227059)
97 lines
2.2 KiB
C
97 lines
2.2 KiB
C
/*
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Unix SMB/CIFS implementation.
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Copyright (C) Andrew Tridgell 2006
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/*
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abstract the various kernel interfaces to change notify into a
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single Samba friendly interface
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*/
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#include "includes.h"
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#include "system/filesys.h"
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#include "ntvfs/sysdep/sys_notify.h"
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#include "lib/events/events.h"
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#include "dlinklist.h"
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/* list of registered backends */
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static struct sys_notify_backend *backends;
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/*
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initialise a system change notify backend
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*/
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struct sys_notify_context *sys_notify_init(int snum,
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TALLOC_CTX *mem_ctx,
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struct event_context *ev)
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{
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struct sys_notify_context *ctx;
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const char *bname;
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struct sys_notify_backend *b;
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if (backends == NULL) {
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return NULL;
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}
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if (ev == NULL) {
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ev = event_context_find(mem_ctx);
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}
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ctx = talloc_zero(mem_ctx, struct sys_notify_context);
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if (ctx == NULL) {
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return NULL;
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}
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ctx->ev = ev;
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bname = lp_parm_string(snum, "notify", "backend");
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if (bname == NULL) {
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bname = backends->name;
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}
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for (b=backends;b;b=b->next) {
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if (strcasecmp(b->name, bname) == 0) break;
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}
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if (b != NULL) {
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ctx->name = b->name;
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ctx->notify_watch = b->notify_watch;
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}
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return ctx;
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}
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/*
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add a watch
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*/
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NTSTATUS sys_notify_watch(struct sys_notify_context *ctx, const char *dirpath,
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uint32_t filter, sys_notify_callback_t callback,
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void *private, void **handle)
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{
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return ctx->notify_watch(ctx, dirpath, filter, callback, private, handle);
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}
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/*
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register a notify backend
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*/
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NTSTATUS sys_notify_register(struct sys_notify_backend *backend)
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{
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DLIST_ADD(backends, backend);
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return NT_STATUS_OK;
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}
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