Solaris FEN support in Gamin
https://bugzilla.gnome.org/show_bug.cgi?id=730679
http://osdyson.org/issues/172
http://hg.osdyson.org/solaris-desktop-spec-files/raw-file/8f7c0cd200a9/patches/gamin-01-all.diff
diff --git a/configure.in b/configure.in
index e4b684e..5836bb7 100644
--- a/configure.in
+++ b/configure.in
@@ -42,6 +42,12 @@ if test -z "$ENV_CFLAGS"; then
CFLAGS=""
fi
+dnl If the user set no CFLAGS, then don't assume the autotools defaults of
+dnl "-g -O2". We set default CFLAGS later based on the --disable-debug flag.
+if test -z "$ENV_CFLAGS"; then
+ CFLAGS=""
+fi
+
dnl for the spec file
RELDATE=`date +'%a %b %e %Y'`
AC_SUBST(RELDATE)
@@ -279,6 +285,43 @@ if test x$kqueue = xtrue; then
backends="${backends}, kqueue"
fi
+case "$os" in
+ solaris*)
+ AM_CONDITIONAL(ON_SOLARIS, true)
+ AC_COMPILE_IFELSE([
+ #include <port.h>
+ #ifndef PORT_SOURCE_FILE
+ #error "Please upgrade to Nevada 72 or above to suppoert FEN"
+ #endif
+ int main() { return 0; }
+ ],[have_fen=1],)
+ if test x$have_fen = x1 ; then
+ AC_ARG_ENABLE(fen,
+ AC_HELP_STRING([--disable-fen], [Disable the FEN backend]),
+ [fen="${enableval}"], [fen=true])
+
+ if test x$fen = xyes; then
+ fen=true
+ elif test x$fen = xno; then
+ fen=false
+ elif test x$fen != xtrue; then
+ AC_MSG_ERROR(bad value ${enableval} for --disable-fen)
+ fi
+ fi
+ break;
+ ;;
+ *)
+ fen=false
+ break;
+ ;;
+esac
+
+AM_CONDITIONAL(ENABLE_FEN, test x$fen = xtrue)
+if test x$fen = xtrue; then
+ AC_DEFINE(ENABLE_FEN,1,[Use Solaris FEN as backend])
+ backends="${backends}, FEN"
+fi
+
dnl pthread support for reentrance of the client library.
AC_ARG_WITH(threads,
[ --with-threads add multithread support(on)])
@@ -387,6 +430,14 @@ if test x$dbus_have_struct_cmsgcred = xyes; then
AC_DEFINE(HAVE_CMSGCRED,1,[Have cmsgcred structure])
fi
+dnl Check for getpeerucred support - Solaris
+
+AC_CHECK_HEADER(ucred.h,
+ AC_CHECK_LIB(c, getpeerucred,[
+ AC_DEFINE([HAVE_GETPEERUCRED],[],[Define if has getpeerucred])
+ AC_DEFINE([HAVE_UCRED_H],[],[Define if <ucred.h> exists])]))
+
+
#### Abstract sockets
AC_MSG_CHECKING(abstract socket namespace)
@@ -531,6 +582,16 @@ AC_SUBST(PYTHON_VERSION)
AC_SUBST(PYTHON_INCLUDES)
AC_SUBST(PYTHON_SITE_PACKAGES)
+dnl Check for -lsocket -lnsl
+
+AC_CHECK_FUNC(gethostent, , AC_CHECK_LIB(nsl, gethostent))
+AC_CHECK_FUNC(setsockopt, , AC_CHECK_LIB(socket, setsockopt))
+
+dnl Check for <sys/mnttab.h>
+
+AC_CHECK_HEADER(sys/mnttab.h,
+ AC_DEFINE([HAVE_SYS_MNTTAB_H], [], [Define if <sys/mnttab.h> is there]))
+
dnl After all config-related tweaking of CFLAGS, set it to its "build" value
AC_MSG_CHECKING(for more compiler warnings)
diff --git a/libgamin/Makefile.am b/libgamin/Makefile.am
index 35aa740..4f725a2 100644
--- a/libgamin/Makefile.am
+++ b/libgamin/Makefile.am
@@ -39,13 +39,24 @@ CLEANFILES=gam_error.c gam_event.c
libgamin_1_la_LIBADD =
+if ON_SOLARIS
+libgamin_1_la_LDFLAGS = -Wl,-M$(srcdir)/gamin_sym.version \
+ -version-info @GAMIN_VERSION_INFO@ @THREAD_LIBS@
+else
libgamin_1_la_LDFLAGS = -Wl,--version-script=$(srcdir)/gamin_sym.version \
-version-info @GAMIN_VERSION_INFO@ @THREAD_LIBS@
+endif
libfam_la_SOURCES = $(libgamin_1_la_SOURCES)
libfam_la_LIBADD = $(libgamin_1_la_LIBADD)
-libfam_la_LDFLAGS = -Wl,--version-script=$(srcdir)/gamin_sym.version \
+
+if ON_SOLARIS
+libfam_la_LDFLAGS = -Wl,-M$(srcdir)/gamin_sym.version \
-version-info @FAM_VERSION_INFO@ @THREAD_LIBS@
+else
+libfam_la_LDFLAGS = -Wl,--version-script=$(srcdir)/gamin_sym.version \
+ -version-info @FAM_VERSION_INFO@ @THREAD_LIBS@
+endif
#
# Compile a program locally to check
diff --git a/libgamin/gam_api.c b/libgamin/gam_api.c
index 4e87e63..3630213 100644
--- a/libgamin/gam_api.c
+++ b/libgamin/gam_api.c
@@ -14,6 +14,12 @@
#include <sys/socket.h>
#include <sys/un.h>
#include <sys/uio.h>
+#if defined(sun)
+#include <string.h>
+#endif
+#if defined(HAVE_UCRED_H)
+#include <ucred.h>
+#endif defined(HAVE_UCRED_H)
#include "fam.h"
#include "gam_protocol.h"
#include "gam_data.h"
@@ -660,6 +666,10 @@ gamin_check_cred(GAMDataPtr conn, int fd)
} cmsg;
#endif
+#if defined(HAVE_GETPEERUCRED)
+ ucred_t *creds;
+#endif
+
s_uid = getuid();
#if defined(LOCAL_CREDS) && defined(HAVE_CMSGCRED)
@@ -726,11 +736,25 @@ retry:
fd, cr_len, (int) sizeof(cr));
goto failed;
}
+#elif defined(HAVE_GETPEERUCRED)
+ if ((creds = (ucred_t *)malloc(ucred_size()))==(ucred_t *)NULL){
+ GAM_DEBUG(DEBUG_INFO,"Malloc failed for ucreds");
+ goto failed;
+ }
+
+ if (getpeerucred(fd, &creds)!=0){
+ GAM_DEBUG(DEBUG_INFO,"getpeerucred call failed");
+ goto failed;
+ }
+ c_uid = ucred_getruid(creds);
+ c_gid = ucred_getrgid(creds);
+ c_pid = ucred_getpid(creds);
+ ucred_free(creds);
#elif defined(HAVE_CMSGCRED)
c_pid = cmsg.cred.cmcred_pid;
c_uid = cmsg.cred.cmcred_euid;
c_gid = cmsg.cred.cmcred_groups[0];
-#else /* !SO_PEERCRED && !HAVE_CMSGCRED */
+#else /* !SO_PEERCRED && !HAVE_CMSGCRED && !HAVE_GETPEERUCRED */
GAM_DEBUG(DEBUG_INFO,
"Socket credentials not supported on this OS\n");
goto failed;
diff --git a/libgamin/gamin_sym.version b/libgamin/gamin_sym.version
index dba5f20..5c6d661 100644
--- a/libgamin/gamin_sym.version
+++ b/libgamin/gamin_sym.version
@@ -2,8 +2,6 @@
global:
FAMCancelMonitor;
FAMClose;
- FAMDebugLevel;
- FAMDebug;
FamErrlist;
FAMErrno;
FAMMonitorCollection;
diff --git a/server/Makefile.am b/server/Makefile.am
index 37aed8b..7964d17 100644
--- a/server/Makefile.am
+++ b/server/Makefile.am
@@ -10,7 +10,7 @@ INCLUDES = \
-DG_DISABLE_DEPRECATED
if GAMIN_DEBUG
-INCLUDES += -DGAM_DEBUG_ENABLED
+INCLUDES += -DGAM_DEBUG_ENABLED -g
endif
@@ -68,6 +68,18 @@ if ENABLE_KQUEUE
gam_server_SOURCES += gam_kqueue.c gam_kqueue.h
endif
+if ENABLE_FEN
+gam_server_SOURCES += gam_fen.c gam_fen.h \
+ fen-dump.c \
+ fen-dump.h \
+ fen-kernel.c \
+ fen-kernel.h \
+ fen-helper.c \
+ fen-helper.h \
+ fen-node.c \
+ fen-node.h
+endif
+
if ENABLE_HURD_MACH_NOTIFY
gam_server_SOURCES += gam_hurd_mach_notify.c gam_hurd_mach_notify.h
diff --git a/server/fen-dump.c b/server/fen-dump.c
new file mode 100644
index 0000000..98d20eb
--- /dev/null
+++ b/server/fen-dump.c
@@ -0,0 +1,77 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* vim:set expandtab ts=4 shiftwidth=4: */
+/*
+ * Copyright (c) 2008, 2010 Oracle and/or its affiliates, Inc. All rights
+ * reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General
+ * Public License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ * Authors: Lin Ma <[email protected]>
+ */
+
+#include "config.h"
+#include <glib.h>
+#include <glib/gprintf.h>
+#include "fen-node.h"
+#include "fen-dump.h"
+
+G_LOCK_EXTERN (fen_lock);
+
+/*-------------------- node ------------------*/
+static void
+dump_node (node_t* node, gpointer data)
+{
+ g_printf ("n:0x%p ds:0x%p s:0x%p %s\n", node, node->dir_subs, node->subs, NODE_NAME(node));
+}
+
+static void
+dump_tree (node_t* node)
+{
+ if (G_TRYLOCK (fen_lock)) {
+ node_traverse(NULL, dump_node, NULL);
+ G_UNLOCK (fen_lock);
+ }
+}
+
+/* ------------------ fdata port hash --------------------*/
+void
+dump_hash_cb (gpointer key,
+ gpointer value,
+ gpointer user_data)
+{
+ g_printf ("k:0x%p v:0x%p >\n", key, value);
+}
+
+gboolean
+dump_hash (GHashTable* hash, gpointer user_data)
+{
+ if (G_TRYLOCK (fen_lock)) {
+ if (g_hash_table_size (hash) > 0) {
+ g_hash_table_foreach (hash, dump_hash_cb, user_data);
+ }
+ G_UNLOCK (fen_lock);
+ }
+ return TRUE;
+}
+
+/* ------------------ event --------------------*/
+void
+dump_event (node_event_t* ev, gpointer user_data)
+{
+ node_t* node = ev->user_data;
+ g_printf ("ne:0x%p e:%p n:0x%p ds:0x%p s:0x%p s\n", ev, ev->e, node, node->dir_subs, node->subs, NODE_NAME(node));
+}
+
diff --git a/server/fen-dump.h b/server/fen-dump.h
new file mode 100644
index 0000000..ffac822
--- /dev/null
+++ b/server/fen-dump.h
@@ -0,0 +1,29 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* vim:set expandtab ts=4 shiftwidth=4: */
+/*
+ * Copyright (c) 2008, 2010 Oracle and/or its affiliates, Inc. All rights
+ * reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General
+ * Public License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ * Authors: Lin Ma <[email protected]>
+ */
+
+#ifndef _FEN_DUMP_H_
+#define _FEN_DUMP_H_
+
+
+#endif /* _FEN_DUMP_H_ */
diff --git a/server/fen-helper.c b/server/fen-helper.c
new file mode 100644
index 0000000..e68e7c3
--- /dev/null
+++ b/server/fen-helper.c
@@ -0,0 +1,197 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* vim:set expandtab ts=4 shiftwidth=4: */
+/*
+ * Copyright (c) 2008, 2010 Oracle and/or its affiliates, Inc. All rights
+ * reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General
+ * Public License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ * Authors: Lin Ma <[email protected]>
+ */
+
+#include "config.h"
+#include <glib.h>
+#include "fen-helper.h"
+#include "fen-kernel.h"
+#ifdef GIO_COMPILATION
+#include "gfilemonitor.h"
+#else
+#include "gam_event.h"
+#include "gam_server.h"
+#include "gam_protocol.h"
+#endif
+
+#ifdef GIO_COMPILATION
+#define FH_W if (fh_debug_enabled) g_debug
+static gboolean fh_debug_enabled = FALSE;
+#else
+#include "gam_error.h"
+#define FH_W(...) GAM_DEBUG(DEBUG_INFO, __VA_ARGS__)
+#endif
+
+G_LOCK_EXTERN (fen_lock);
+
+/* misc */
+static void
+scan_children_init(node_t *f, gpointer sub)
+{
+ gboolean emit;
+ gint event;
+
+ FH_W ("%s %s [0x%p]\n", __func__, NODE_NAME(f), f);
+
+#ifdef GIO_COMPILATION
+ emit = FALSE;
+ event = G_FILE_MONITOR_EVENT_CREATED;
+#else
+ emit = TRUE;
+ event = GAMIN_EVENT_EXISTS;
+#endif
+
+ if (!NODE_HAS_FLAG(f, NODE_FLAG_SNAPSHOT_UPDATED)) {
+ /* TODO snapshot should also compare to the sub created timestamp. */
+ /* GIO initially doesn't emit created/existed events. */
+ node_create_children_snapshot(f, event, emit);
+ } else {
+ GHashTableIter iter;
+ gpointer value;
+
+ g_hash_table_iter_init (&iter, f->children);
+ while (g_hash_table_iter_next (&iter, NULL, &value)) {
+ node_t *child = (node_t *)value;
+
+#ifdef GIO_COMPILATION
+ /* GIO initially doesn't emit created/existed events. */
+ /* g_file_monitor_emit_event(G_FILE_MONITOR(sub), child->gfile, NULL, event); */
+#else
+ gam_server_emit_one_event(NODE_NAME(child), gam_subscription_is_dir(sub), event, sub, 1);
+#endif
+ }
+ }
+}
+
+/**
+ * fen_add
+ *
+ * Won't hold a ref, we have a timout callback to clean unused node_t.
+ * If there is no value for a key, add it and return it; else return the old
+ * one.
+ */
+void
+fen_add (const gchar *filename, gpointer sub, gboolean is_mondir)
+{
+ node_t* f;
+
+ g_assert (filename);
+ g_assert (sub);
+
+ G_LOCK (fen_lock);
+ f = node_find(NULL, filename, TRUE);
+ FH_W ("%s 0x%p sub[0x%p] %s\n", __func__, f, sub, filename);
+ g_assert (f);
+
+ /* Update timestamp, the events in global queue will compare itself to this
+ * timestamp to decide if be emitted. TODO, timestamp should be per sub.
+ */
+ if (!NODE_IS_ACTIVE(f)) {
+ g_get_current_time(&f->atv);
+ }
+
+ if (is_mondir) {
+ f->dir_subs = g_list_prepend(f->dir_subs, sub);
+ } else {
+ f->subs = g_list_prepend(f->subs, sub);
+ }
+
+ if (NODE_HAS_STATE(f, NODE_STATE_ASSOCIATED) ||
+ (node_lstat(f) == 0 && port_add(f) == 0)) {
+#ifndef GIO_COMPILATION
+ gam_server_emit_one_event (NODE_NAME(f),
+ gam_subscription_is_dir (sub), GAMIN_EVENT_EXISTS, sub, 1);
+#endif
+ if (is_mondir) {
+ scan_children_init (f, sub);
+ }
+ } else {
+#ifndef GIO_COMPILATION
+ gam_server_emit_one_event (NODE_NAME(f),
+ gam_subscription_is_dir (sub), GAMIN_EVENT_DELETED, sub, 1);
+#endif
+ node_adjust_deleted (f);
+ }
+#ifndef GIO_COMPILATION
+ gam_server_emit_one_event (NODE_NAME(f),
+ gam_subscription_is_dir (sub), GAMIN_EVENT_ENDEXISTS, sub, 1);
+#endif
+ G_UNLOCK (fen_lock);
+}
+
+void
+fen_remove (const gchar *filename, gpointer sub, gboolean is_mondir)
+{
+ node_t* f;
+
+ g_assert (filename);
+ g_assert (sub);
+
+ G_LOCK (fen_lock);
+ f = node_find(NULL, filename, FALSE);
+ FH_W ("%s 0x%p sub[0x%p] %s\n", __func__, f, sub, filename);
+
+ if (f) {
+ if (is_mondir) {
+ f->dir_subs = g_list_remove(f->dir_subs, sub);
+ } else {
+ f->subs = g_list_remove(f->subs, sub);
+ }
+
+ if (!NODE_IS_ACTIVE(f)) {
+ node_try_delete (f);
+ }
+ }
+ G_UNLOCK (fen_lock);
+}
+
+/**
+ * fen_init:
+ *
+ * FEN subsystem initializing.
+ */
+gboolean
+fen_init ()
+{
+ static gboolean initialized = FALSE;
+ static gboolean result = FALSE;
+
+ G_LOCK (fen_lock);
+ if (initialized) {
+ G_UNLOCK (fen_lock);
+ return result;
+ }
+
+ result = node_class_init();
+
+ if (!result) {
+ G_UNLOCK (fen_lock);
+ return result;
+ }
+
+ initialized = TRUE;
+
+ G_UNLOCK (fen_lock);
+ return result;
+}
+
diff --git a/server/fen-helper.h b/server/fen-helper.h
new file mode 100644
index 0000000..25df38f
--- /dev/null
+++ b/server/fen-helper.h
@@ -0,0 +1,33 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* vim:set expandtab ts=4 shiftwidth=4: */
+/*
+ * Copyright (c) 2008, 2010 Oracle and/or its affiliates, Inc. All rights
+ * reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General
+ * Public License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ * Authors: Lin Ma <[email protected]>
+ */
+
+#ifndef _FEN_HELPER_H_
+#define _FEN_HELPER_H_
+
+void fen_add (const gchar *filename, gpointer sub, gboolean is_mondir);
+void fen_remove (const gchar *filename, gpointer sub, gboolean is_mondir);
+
+gboolean fen_init ();
+
+#endif /* _FEN_HELPER_H_ */
diff --git a/server/fen-kernel.c b/server/fen-kernel.c
new file mode 100644
index 0000000..8b9c58b
--- /dev/null
+++ b/server/fen-kernel.c
@@ -0,0 +1,557 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* vim:set expandtab ts=4 shiftwidth=4: */
+/*
+ * Copyright (c) 2008, 2010 Oracle and/or its affiliates, Inc. All rights
+ * reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General
+ * Public License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ * Authors: Lin Ma <[email protected]>
+ */
+
+#include "config.h"
+#include <rctl.h>
+#include <strings.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <glib.h>
+#include "fen-kernel.h"
+#include "fen-dump.h"
+
+#ifdef GIO_COMPILATION
+#define FK_W if (fk_debug_enabled) g_debug
+static gboolean fk_debug_enabled = FALSE;
+#else
+#include "gam_error.h"
+#define FK_W(...) GAM_DEBUG(DEBUG_INFO, __VA_ARGS__)
+#endif
+
+G_GNUC_INTERNAL G_LOCK_DEFINE (fen_lock);
+
+static ulong max_port_events = 512;
+static GList *pn_visible_list; /* the queue of ports which don't have the max objs */
+static GQueue *g_eventq = NULL;
+static timespec_t zero_wait;
+static void (*user_process_events_cb) (gpointer, node_event_t*);
+static port_event_t *pevents = NULL;
+static gint PE_ALLOC = 2048;
+static GHashTable *renamed_hash = NULL; /* <parent node, ev> */
+
+typedef struct _PSource {
+ GSource source; /* Inherit from GSource, must be the first. */
+ GPollFD gfd;
+ gboolean pending;
+ uint_t event_growing_factor;
+ uint_t pending_events;
+} PSource;
+
+#define PGPFD(s) (&((PSource *)(s))->gfd)
+#define SLEEP_BASE_TIME 10 /* in milliseconds */
+#define EXPECT_INC_EVENTS(pn) (1 << (pn->event_growing_factor))
+
+#define RENAME_EVENTS_INTERVAL 500 /* in milliseconds */
+#define PROCESS_PORT_EVENTS_TIME 1000 /* in milliseconds */
+guint process_port_event_id = 0;
+
+static gchar* _event_strings(int event);
+static const gchar* _event_string (int event);
+static GSource *psource_new();
+
+static gboolean port_prepare(GSource *source, gint *timeout_);
+static gboolean port_check(GSource *source);
+static gboolean port_dispatch(GSource *source, GSourceFunc callback, gpointer user_data);
+static GSourceFuncs fen_source_func = {
+ port_prepare,
+ port_check,
+ port_dispatch,
+ NULL
+};
+
+static gboolean
+port_prepare(GSource *source, gint *timeout_)
+{
+ return FALSE;
+}
+
+static gboolean
+port_check(GSource *source)
+{
+ PSource *pn = (PSource *)source;
+ uint_t nget;
+
+ if (pn->pending) {
+ pn->pending = FALSE;
+ g_source_add_poll(source, PGPFD(source));
+ g_source_unref(source);
+ return FALSE;
+ }
+
+ if (!(PGPFD(pn)->revents & G_IO_IN))
+ return FALSE;
+
+ if (port_getn(PGPFD(source)->fd, NULL, 0, &nget, 0) == 0) {
+ if (nget - pn->pending_events > EXPECT_INC_EVENTS(pn)) {
+ /* Sleep for a while. */
+ pn->pending_events = nget;
+ pn->event_growing_factor ++;
+
+ pn->pending = TRUE;
+ g_source_ref(source);
+ g_source_remove_poll(source, PGPFD(source));
+ g_timeout_add(SLEEP_BASE_TIME,
+ (GSourceFunc)port_check,
+ (gpointer)pn);
+ return FALSE;
+ }
+ }
+
+ pn->pending_events = 0;
+ pn->event_growing_factor = 0;
+
+ return TRUE;
+}
+
+static gboolean
+port_dispatch(GSource *source, GSourceFunc callback, gpointer user_data)
+{
+ node_t *f;
+ uint_t nget = 0;
+ uint_t total = 0;
+
+ FK_W ("%s 0x%p fd %d\n", __func__, source, PGPFD(source)->fd);
+
+ G_LOCK (fen_lock);
+ do {
+ nget = 1;
+ if (port_getn(PGPFD(source)->fd, pevents, PE_ALLOC, &nget, &zero_wait) == 0) {
+ int i;
+ for (i = 0; i < nget; i++) {
+ f = (node_t *)pevents[i].portev_user;
+
+ if (pevents[i].portev_source == PORT_SOURCE_FILE) {
+
+ NODE_CLE_STATE(f, NODE_STATE_ASSOCIATED);
+ NODE_SET_STATE(f, NODE_STATE_HAS_EVENTS);
+
+ if (HAS_NO_EXCEPTION_EVENTS(pevents[i].portev_events)) {
+ /* If the events do not show it's deleted, update
+ * file timestamp to avoid missing events next time.
+ */
+ if (node_lstat(f) != 0 /* || port_add(f) != 0 */) {
+ /* Included deleted event. */
+ pevents[i].portev_events |= FILE_DELETE;
+ }
+ }
+
+ /* Queue it and waiting for processing. */
+ g_queue_push_tail(g_eventq,
+ node_event_new(pevents[i].portev_events, (gpointer)f));
+
+ } else {
+ FK_W ("[kernel] unknown portev_source %d\n", pevents[i].portev_source);
+ }
+ }
+
+ total += nget;
+
+ } else {
+ FK_W ("[kernel] port_getn %s\n", g_strerror (errno));
+ break;
+ }
+ } while (nget == PE_ALLOC);
+
+ G_UNLOCK (fen_lock);
+
+ if (total > 0 && callback) {
+ FK_W ("[kernel] get total %ld events\n", total);
+ return callback (user_data);
+ }
+ return TRUE;
+}
+
+static gboolean
+process_renamed_hash_cb(gpointer key, gpointer value, gpointer user_data)
+{
+ node_event_t *ev = value;
+
+#if 0
+ node_add_event(ev->user_data, ev);
+#else
+ user_process_events_cb(ev->user_data, ev);
+#endif
+ /* Always delete self from hash. */
+ return TRUE;
+}
+
+static gboolean
+port_events_process_cb(gpointer user_data)
+{
+ node_event_t *ev;
+
+ G_LOCK (fen_lock);
+
+ /* Processing g_eventq */
+ while ((ev = (node_event_t*)g_queue_pop_head (g_eventq)) != NULL) {
+
+ /* FK_W ("[%s] 0x%p %s\n", __func__, ev, _event_string (ev->e)); */
+
+ {
+ gchar *log = _event_strings(ev->e);
+ FK_W ("%s %s %s\n", __func__, NODE_NAME(ev->user_data), log);
+ g_free(log);
+ }
+
+#ifdef GIO_COMPILATION
+ /* Use the parent node as a hash, because only the dir_subs in the
+ * parent node should receive MOVE event.
+ */
+ if (NODE_PARENT(ev->user_data)) {
+ if (ev->e == FILE_RENAME_TO) {
+ g_hash_table_insert(renamed_hash, NODE_PARENT(ev->user_data), ev);
+ g_time_val_add(&ev->rename_tv, RENAME_EVENTS_INTERVAL);
+ continue;
+ }
+ if (ev->e == FILE_RENAME_FROM) {
+ node_event_t *pair_ev;
+
+ pair_ev = g_hash_table_lookup(renamed_hash, NODE_PARENT(ev->user_data));
+ if (pair_ev && node_timeval_lt(&ev->ctv, &pair_ev->rename_tv)) {
+ g_hash_table_remove(renamed_hash, NODE_PARENT(ev->user_data));
+ pair_ev->pair_data = ev->user_data;
+ /* Free ev, exchange pair_ev and ev. */
+ node_event_delete(ev);
+ ev = pair_ev;
+ }
+ }
+ }
+#endif
+
+#if 0
+ node_add_event(ev->user_data, ev);
+#else
+ user_process_events_cb(ev->user_data, ev);
+#endif
+ }
+
+ /* Processing the events in renamed_hash. TODO we should delay it and wait
+ * for more possible pair.
+ */
+ g_hash_table_foreach_remove(renamed_hash, process_renamed_hash_cb, NULL);
+
+ G_UNLOCK (fen_lock);
+
+ process_port_event_id = 0;
+ return FALSE;
+}
+
+static gboolean
+port_events_read_cb(gpointer user_data)
+{
+
+ if (process_port_event_id == 0) {
+ process_port_event_id = g_timeout_add(PROCESS_PORT_EVENTS_TIME,
+ port_events_process_cb,
+ NULL);
+ }
+
+ return TRUE;
+}
+
+/*
+ * malloc PSource and port_create, start thread at pnode_ref.
+ * if psource_new succeeded, the PSource will never
+ * be freed. So PSource can be freed only in psource_new.
+ * Note pnode_monitor_remove_all can also free PSource, but currently no one
+ * invork it.
+ */
+static GSource*
+psource_new()
+{
+ GSource *source = NULL;
+ int fd;
+
+ if ((fd = port_create()) >= 0) {
+ source = g_source_new(&fen_source_func, sizeof(PSource));
+ PGPFD(source)->fd = fd;
+ PGPFD(source)->events = G_IO_IN | G_IO_HUP | G_IO_ERR;
+ g_source_set_callback(source, port_events_read_cb, NULL, NULL);
+ g_source_attach(source, NULL);
+ g_source_unref(source);
+ g_source_add_poll(source, PGPFD(source));
+
+ FK_W ("%s 0x%p fd %d\n", __func__, source, PGPFD(source)->fd);
+ } else {
+ FK_W ("PORT_CREATE %s\n", g_strerror(errno));
+ g_return_val_if_reached(NULL);
+ }
+
+ return source;
+}
+
+/**
+ * port_add:
+ * @f:
+ *
+ * Unsafe, need lock fen_lock.
+ * port_add will associate a GSource to @f->source
+ */
+gint
+port_add(node_t *f)
+{
+ GSource *source = f->source;
+
+ FK_W ("%s [0x%p] %s\n", __func__, f, NODE_NAME(f));
+
+ g_assert(f);
+ g_assert(NODE_HAS_FLAG(f, NODE_FLAG_STAT_UPDATED));
+
+ /* if (!NODE_HAS_FLAG(f, NODE_FLAG_STAT_DONE)) { */
+ /* if (NODE_STAT(f) != 0) { */
+ /* return errno; */
+ /* } */
+ /* } */
+
+ /* Try re-use f->pn. f->pn may be used by other request, e.g. f is deleted
+ * for a long time. So if pn is full, we try to open a new one.
+ */
+ if (!source) {
+start_over:
+ /* Try the next visible source. */
+ if (pn_visible_list) {
+ source = (GSource *)pn_visible_list->data;
+ } else {
+ if ((source = psource_new()) != NULL) {
+ g_assert (g_list_find (pn_visible_list, source) == NULL);
+ pn_visible_list = g_list_prepend (pn_visible_list, source);
+ }
+ }
+ }
+
+ if (port_associate(PGPFD(source)->fd, PORT_SOURCE_FILE, (uintptr_t)FILE_OBJECT(f),
+ CONCERNED_EVENTS,
+ (void *)f) == 0) {
+ f->source = source;
+ NODE_SET_STATE(f, NODE_STATE_ASSOCIATED);
+ NODE_CLE_FLAG(f, NODE_FLAG_STAT_UPDATED);
+ FK_W ("PORT_ASSOCIATE 0x%p OK\n", f);
+ return 0;
+ } else if (errno == EAGAIN) {
+ /* Full, remove it. */
+ pn_visible_list = g_list_remove (pn_visible_list, source);
+ /* Re-add to port */
+ goto start_over;
+
+ } else if (errno == ENOENT) {
+ /* File is not exist */
+ } else if (errno == ENOTSUP) {
+ /* FS is not supported. Currently we think it no longer make sense to
+ * monitor it, so clean the stat info and return 0 to ignore this
+ * node. If there are requirement, we can consider to add polling
+ * method.
+ */
+ NODE_CLE_FLAG(f, NODE_FLAG_STAT_UPDATED);
+ return 0;
+ } else {
+ FK_W ("PORT_ASSOCIATE 0x%p %s\n", f, g_strerror (errno));
+ }
+
+ /* No matter if associated successfully, stat info is out-of-date, so clean it. */
+ NODE_CLE_FLAG(f, NODE_FLAG_STAT_UPDATED);
+ return errno;
+}
+
+/**
+ * port_remove
+ *
+ * < private >
+ * Unsafe, need lock fen_lock.
+ */
+void
+port_remove (node_t *f)
+{
+ /* g_assert(f->source); */
+
+ if (NODE_HAS_STATE(f, NODE_STATE_ASSOCIATED)) {
+ /* Mark unregisted. */
+ if (port_dissociate(PGPFD(f->source)->fd, PORT_SOURCE_FILE, (uintptr_t)FILE_OBJECT(f)) == 0) {
+ /*
+ * Note, we can run foode_delete if dissociating is failed,
+ * because there may be some pending events (mostly like
+ * FILE_DELETE) in the port_get. If we delete the foode
+ * the fnode may be deleted, then port_get will run on an invalid
+ * address.
+ */
+ NODE_CLE_STATE(f, NODE_STATE_ASSOCIATED);
+ FK_W ("PORT_DISSOCIATE 0x%p OK\n", f);
+ } else if (errno == ENOENT) {
+ /* The file has been removed from port, after port_get or before
+ * port_get but DELETED event has been generated.
+ * Ignored. */
+ } else {
+ FK_W ("PORT_DISSOCIATE 0x%p %s\n", f, g_strerror (errno));
+ g_return_if_reached();
+ }
+ }
+}
+
+/**
+ * Get Solaris resouce values.
+ *
+ */
+
+extern gboolean
+port_class_init (void (*user_process_events_callback) (gpointer, node_event_t*))
+{
+ rctlblk_t *rblk;
+
+ if ((rblk = malloc (rctlblk_size ())) == NULL) {
+ FK_W ("[kernel] rblk malloc %s\n", g_strerror (errno));
+ return FALSE;
+ }
+ if (getrctl ("process.max-port-events", NULL, rblk, RCTL_FIRST) == -1) {
+ FK_W ("[kernel] getrctl %s\n", g_strerror (errno));
+ free (rblk);
+ return FALSE;
+ } else {
+ max_port_events = rctlblk_get_value(rblk);
+ FK_W ("max_port_events = %u\n", max_port_events);
+ free (rblk);
+ }
+ renamed_hash = g_hash_table_new_full(g_direct_hash, g_direct_equal,
+ NULL, NULL);
+ if (renamed_hash == NULL) {
+ FK_W ("[kernel] FEN global renamed queue initializing faild\n");
+ return FALSE;
+ }
+ if ((g_eventq = g_queue_new ()) == NULL) {
+ FK_W ("[kernel] FEN global event queue initializing faild\n");
+ return FALSE;
+ }
+ if (user_process_events_callback == NULL) {
+ FK_W ("[kernel] FEN global no user_process_events_callback\n");
+ return FALSE;
+ }
+ user_process_events_cb = user_process_events_callback;
+ memset (&zero_wait, 0, sizeof (timespec_t));
+
+ pevents = g_malloc(PE_ALLOC * sizeof(port_event_t));
+ if (pevents == NULL) {
+ FK_W ("[kernel] FEN global alloc pevents failed\n");
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+static gchar*
+printevent (const char *pname, int event, const char *tag)
+{
+ static gchar *event_string = NULL;
+ GString *str;
+
+ if (event_string) {
+ g_free(event_string);
+ }
+
+ str = g_string_new ("");
+ g_string_printf (str, "[%s] [%-20s]", tag, pname);
+ if (event & FILE_ACCESS) {
+ str = g_string_append (str, " ACCESS");
+ }
+ if (event & FILE_MODIFIED) {
+ str = g_string_append (str, " MODIFIED");
+ }
+ if (event & FILE_ATTRIB) {
+ str = g_string_append (str, " ATTRIB");
+ }
+ if (event & FILE_DELETE) {
+ str = g_string_append (str, " DELETE");
+ }
+ if (event & FILE_RENAME_TO) {
+ str = g_string_append (str, " RENAME_TO");
+ }
+ if (event & FILE_RENAME_FROM) {
+ str = g_string_append (str, " RENAME_FROM");
+ }
+ if (event & UNMOUNTED) {
+ str = g_string_append (str, " UNMOUNTED");
+ }
+ if (event & MOUNTEDOVER) {
+ str = g_string_append (str, " MOUNTEDOVER");
+ }
+ event_string = str->str;
+ g_string_free (str, FALSE);
+ return event_string;
+}
+
+static gchar *
+_event_strings(int event)
+{
+ GString *str = g_string_sized_new(80);
+
+ if (event & FILE_DELETE)
+ g_string_append(str, " FILE_DELETE");
+
+ if (event & FILE_RENAME_FROM)
+ g_string_append(str, " FILE_RENAME_FROM");
+
+ if (event & FILE_MODIFIED)
+ g_string_append(str, " FILE_MODIFIED");
+
+ if (event & FILE_RENAME_TO)
+ g_string_append(str, " FILE_RENAME_TO");
+
+ if (event & MOUNTEDOVER)
+ g_string_append(str, " MOUNTEDOVER");
+
+ if (event & FILE_ATTRIB)
+ g_string_append(str, " FILE_ATTRIB");
+
+ if (event & UNMOUNTED)
+ g_string_append(str, " UNMOUNTED");
+
+ if (event & FILE_ACCESS)
+ g_string_append(str, " FILE_ACCESS");
+
+ return g_string_free(str, FALSE);
+}
+
+static const gchar *
+_event_string (int event)
+{
+ switch (event) {
+ case FILE_DELETE:
+ return "FILE_DELETE";
+ case FILE_RENAME_FROM:
+ return "FILE_RENAME_FROM";
+ case FILE_MODIFIED:
+ return "FILE_MODIFIED";
+ case FILE_RENAME_TO:
+ return "FILE_RENAME_TO";
+ case MOUNTEDOVER:
+ return "MOUNTEDOVER";
+ case FILE_ATTRIB:
+ return "FILE_ATTRIB";
+ case UNMOUNTED:
+ return "UNMOUNTED";
+ case FILE_ACCESS:
+ return "FILE_ACCESS";
+ default:
+ return "EVENT_UNKNOWN";
+ }
+}
+
diff --git a/server/fen-kernel.h b/server/fen-kernel.h
new file mode 100644
index 0000000..6d2c49b
--- /dev/null
+++ b/server/fen-kernel.h
@@ -0,0 +1,43 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* vim:set expandtab ts=4 shiftwidth=4: */
+/*
+ * Copyright (c) 2008, 2010 Oracle and/or its affiliates, Inc. All rights
+ * reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General
+ * Public License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ * Authors: Lin Ma <[email protected]>
+ */
+
+#include <sys/types.h>
+#include <errno.h>
+
+#include "fen-node.h"
+
+#ifndef _FEN_KERNEL_H_
+#define _FEN_KERNEL_H_
+
+#define CONCERNED_EVENTS (FILE_MODIFIED | FILE_ATTRIB | FILE_NOFOLLOW)
+#define EXCEPTION_EVENTS (FILE_DELETE | FILE_RENAME_FROM)
+#define HAS_EXCEPTION_EVENTS(e) ((e & EXCEPTION_EVENTS) != 0)
+#define HAS_NO_EXCEPTION_EVENTS(e) ((e & EXCEPTION_EVENTS) == 0)
+
+gint port_add (node_t* f);
+void port_remove (node_t *f);
+
+gboolean port_class_init ();
+
+#endif /* _FEN_KERNEL_H_ */
diff --git a/server/fen-node.c b/server/fen-node.c
new file mode 100644
index 0000000..d4d7ddb
--- /dev/null
+++ b/server/fen-node.c
@@ -0,0 +1,642 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* vim:set expandtab ts=4 shiftwidth=4: */
+/*
+ * Copyright (c) 2008, 2010 Oracle and/or its affiliates, Inc. All rights
+ * reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General
+ * Public License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ * Authors: Lin Ma <[email protected]>
+ */
+
+#include "config.h"
+#include <sys/stat.h>
+#include <errno.h>
+#include <strings.h>
+#include <glib.h>
+#include "fen-kernel.h"
+#include "fen-node.h"
+#include "fen-dump.h"
+
+#ifdef GIO_COMPILATION
+#include "gfilemonitor.h"
+#else
+#include "gam_event.h"
+#include "gam_server.h"
+#include "gam_protocol.h"
+#endif
+
+#ifdef GIO_COMPILATION
+#define FN_W if (fn_debug_enabled) g_debug
+static gboolean fn_debug_enabled = FALSE;
+#else
+#include "gam_error.h"
+#define FN_W(...) GAM_DEBUG(DEBUG_INFO, __VA_ARGS__)
+#endif
+
+G_LOCK_EXTERN (fen_lock);
+
+/* Must continue monitoring if:
+ * 1) I'm subscribed,
+ * 2) The subscribed children (one of the children has subs) are missing,
+ * 3) my parent is subscribed (monitoring directory).
+ */
+#define NODE_NEED_MONITOR(f) \
+ (NODE_IS_ACTIVE(f) || node_children_num(f) > 0 || NODE_IS_REQUIRED_BY_PARENT(f))
+
+static int concern_events[] = {
+ FILE_DELETE,
+ FILE_RENAME_FROM,
+ UNMOUNTED,
+ MOUNTEDOVER,
+#ifdef GIO_COMPILATION
+ FILE_MODIFIED,
+ FILE_ATTRIB,
+#else
+ FILE_MODIFIED | FILE_ATTRIB,
+#endif
+ FILE_RENAME_TO,
+};
+
+node_t *ROOT = NULL;
+
+static void node_emit_one_event(node_t *f, GList *subs, node_t *other, int event);
+static void node_emit_events(node_t *f, const node_event_t *ne);
+static int node_event_translate(int event, gboolean pair);
+static void node_add_event (node_t *f, node_event_t *ev);
+static node_t* node_new (node_t* parent, const gchar* basename);
+static void node_delete (node_t* parent);
+static node_t* node_get_child (node_t *f, const gchar *basename);
+static void children_add (node_t *p, node_t *f);
+static void children_remove (node_t *p, node_t *f);
+static gboolean children_remove_cb (gpointer key, gpointer value, gpointer user_data);
+static guint node_children_num (node_t *f);
+
+gboolean
+node_timeval_lt(const GTimeVal *val1, const GTimeVal *val2)
+{
+ if (val1->tv_sec < val2->tv_sec)
+ return TRUE;
+
+ if (val1->tv_sec > val2->tv_sec)
+ return FALSE;
+
+ /* val1->tv_sec == val2->tv_sec */
+ if (val1->tv_usec < val2->tv_usec)
+ return TRUE;
+
+ return FALSE;
+}
+
+void
+node_traverse (node_t* node, void(*traverse_cb)(node_t*, gpointer), gpointer user_data)
+{
+ GHashTableIter iter;
+ gpointer value;
+
+ g_assert(traverse_cb);
+ if (node == NULL) {
+ node = ROOT;
+ }
+
+ if (node) {
+ traverse_cb(node, user_data);
+ }
+
+ g_hash_table_iter_init (&iter, node->children);
+ while (g_hash_table_iter_next (&iter, NULL, &value)) {
+ node_traverse((node_t *)value, traverse_cb, user_data);
+ }
+}
+
+node_t*
+node_find(node_t* node, const gchar* filename, gboolean create_on_missing)
+{
+ gchar* str;
+ gchar* token;
+ gchar* lasts;
+ node_t* parent;
+ node_t* child;
+
+ g_assert (filename && filename[0] == '/');
+
+ if (node == NULL) {
+ node = ROOT;
+ }
+
+ FN_W ("%s %s\n", __func__, filename);
+
+ parent = child = node;
+ str = g_strdup (filename);
+
+ for (token = strtok_r (str, G_DIR_SEPARATOR_S, &lasts);
+ token != NULL && child != NULL;
+ token = strtok_r (NULL, G_DIR_SEPARATOR_S, &lasts)) {
+ FN_W ("%s %s + %s\n", __func__, NODE_NAME(parent), token);
+ child = node_get_child(parent, token);
+ if (child) {
+ parent = child;
+ } else if (create_on_missing) {
+ child = node_new (parent, token);
+ if (child) {
+ children_add (parent, child);
+ parent = child;
+ continue;
+ } else {
+ FN_W ("%s create %s failed", __func__, token);
+ }
+ } else {
+ break;
+ }
+ }
+
+ g_free (str);
+ return child;
+}
+
+gint
+node_lstat(node_t *f)
+{
+ struct stat buf;
+
+ g_assert(!NODE_HAS_STATE(f, NODE_STATE_ASSOCIATED));
+
+ if (lstat(NODE_NAME(f), &buf) == 0) {
+ FN_W ("%s %s\n", __func__, NODE_NAME(f));
+ FILE_OBJECT(f)->fo_atime = buf.st_atim;
+ FILE_OBJECT(f)->fo_mtime = buf.st_mtim;
+ FILE_OBJECT(f)->fo_ctime = buf.st_ctim;
+ NODE_SET_FLAG(f, NODE_FLAG_STAT_UPDATED |
+ (S_ISDIR (buf.st_mode) ? NODE_FLAG_DIR : NODE_FLAG_NONE));
+ return 0;
+ } else {
+ FN_W ("%s(lstat) %s %s\n", __func__, NODE_NAME(f), g_strerror (errno));
+ }
+ return errno;
+}
+
+void
+node_create_children_snapshot(node_t *f, gint created_event, gboolean emit)
+{
+ GDir *dir;
+ GError *err = NULL;
+
+ FN_W ("%s %s [0x%p]\n", __func__, NODE_NAME(f), f);
+
+ dir = g_dir_open (NODE_NAME(f), 0, &err);
+ if (dir) {
+ const char *basename;
+ node_t *child = NULL;
+
+ while ((basename = g_dir_read_name (dir))) {
+ node_t* data;
+ GList *idx;
+
+ child = node_get_child (f, basename);
+ if (child == NULL) {
+ gchar *filename;
+
+ child = node_new (f, basename);
+ children_add (f, child);
+ }
+
+ if (f->dir_subs) {
+ /* We need monitor the new children, or the existed child which
+ * is in the DELETED mode.
+ */
+ if (!NODE_HAS_STATE(child, NODE_STATE_ASSOCIATED) &&
+ node_lstat(child) == 0 && port_add(child) == 0) {
+ if (emit) {
+ /* Emit the whatever event for the new found file. */
+ node_emit_one_event(child, child->dir_subs, NULL, created_event);
+ node_emit_one_event(child, child->subs, NULL, created_event);
+ node_emit_one_event(child, f->dir_subs, NULL, created_event);
+ node_emit_one_event(child, f->subs, NULL, created_event);
+ }
+ }
+ /* else ignore, because it may be deleted. */
+ }
+ }
+ g_dir_close (dir);
+
+ /* We have finished children snapshot. Any other new added subs should
+ * directory iterate the snapshot instead of scan directory again.
+ */
+ NODE_SET_FLAG(f, NODE_FLAG_SNAPSHOT_UPDATED);
+
+ } else {
+ FN_W (err->message);
+ g_error_free (err);
+ }
+}
+
+/**
+ * If all active children nodes are ported, then cancel monitor the parent
+ * node. If we know how many children are created, then we can stop accordingly.
+ *
+ * Unsafe, need lock.
+ */
+static void
+foreach_known_children_scan(gpointer key, gpointer value, gpointer user_data)
+{
+ node_t* f = (node_t*)value;
+
+ FN_W ("%s 0x%p %s\n", __func__, f, NODE_NAME(f));
+
+ if (!NODE_HAS_STATE(f, NODE_STATE_ASSOCIATED)) {
+ if (node_lstat(f) == 0 && port_add(f) == 0) {
+ node_emit_one_event(f, f->dir_subs, NULL, FN_EVENT_CREATED);
+ node_emit_one_event(f, f->subs, NULL, FN_EVENT_CREATED);
+ if (NODE_PARENT(f)) {
+ node_emit_one_event(f, NODE_PARENT(f)->dir_subs, NULL, FN_EVENT_CREATED);
+ node_emit_one_event(f, NODE_PARENT(f)->subs, NULL, FN_EVENT_CREATED);
+ }
+ }
+ }
+}
+
+gboolean
+node_try_delete(node_t* node)
+{
+ g_assert (node);
+
+ FN_W ("%s 0x%p %s\n", __func__, node, NODE_NAME(node));
+
+ /* Try clean children */
+ if (node_children_num (node) > 0) {
+ g_hash_table_foreach_remove(node->children, children_remove_cb, NULL);
+ }
+ if (!NODE_NEED_MONITOR(node)) {
+ /* Clean some flags. */
+ /* NODE_CLE_FLAG(node, NODE_FLAG_HAS_SNAPSHOT | NODE_FLAG_STAT_DONE); */
+ node->flag = 0;
+
+ /* Now we handle the state. */
+ if (NODE_HAS_STATE(node, NODE_STATE_ASSOCIATED)) {
+ port_remove(node);
+ }
+ /* Actually ignore the ROOT node. */
+ if (node->state == 0 && NODE_PARENT(node)) {
+ children_remove(NODE_PARENT(node), node);
+ /* Do clean instead of returning TRUE. */
+ node_delete (node);
+ }
+ /* else, we have events, clean event queue? */
+ }
+ return FALSE;
+}
+
+static node_t*
+node_new (node_t* parent, const gchar* basename)
+{
+ node_t *f = NULL;
+
+ g_assert (basename && basename[0]);
+
+ if ((f = g_new0(node_t, 1)) != NULL) {
+ if (parent) {
+ NODE_NAME(f) = g_build_filename(NODE_NAME(parent), basename, NULL);
+ } else {
+ NODE_NAME(f) = g_strdup(G_DIR_SEPARATOR_S);
+ }
+ f->basename = g_strdup (basename);
+ /* f->children = g_hash_table_new_full (g_str_hash, g_str_equal, */
+ /* NULL, (GDestroyNotify)node_delete); */
+ f->children = g_hash_table_new_full (g_str_hash, g_str_equal,
+ NULL, NULL);
+#ifdef GIO_COMPILATION
+ f->gfile = g_file_new_for_path (NODE_NAME(f));
+#endif
+ FN_W ("%s 0x%p %s\n", __func__, f, NODE_NAME(f));
+ }
+ return f;
+}
+
+static void
+node_delete (node_t *f)
+{
+ FN_W ("%s 0x%p %s\n", __func__, f, NODE_NAME(f));
+ g_assert(f->state == 0);
+ g_assert(!NODE_IS_ACTIVE(f));
+ g_assert(g_hash_table_size (f->children) == 0);
+ g_assert(NODE_PARENT(f) == NULL);
+ g_hash_table_unref(f->children);
+#ifdef GIO_COMPILATION
+ g_object_unref (f->gfile);
+#endif
+ g_free(f->basename);
+ g_free(NODE_NAME(f));
+ g_free (f);
+}
+
+static void
+children_add (node_t *p, node_t *f)
+{
+ FN_W ("%s %s %s\n", __func__, NODE_NAME(p), f->basename);
+ g_hash_table_insert (p->children, f->basename, f);
+ NODE_PARENT(f) = p;
+}
+
+static void
+children_remove (node_t *p, node_t *f)
+{
+ FN_W ("%s %s %s\n", __func__, NODE_NAME(p), f->basename);
+ g_hash_table_steal (p->children, f->basename);
+ NODE_PARENT(f) = NULL;
+}
+
+static node_t *
+node_get_child (node_t *f, const gchar *basename)
+{
+ if (f->children) {
+ return (node_t *) g_hash_table_lookup (f->children, (gpointer)basename);
+ }
+ return NULL;
+}
+
+static guint
+node_children_num (node_t *f)
+{
+ return g_hash_table_size (f->children);
+}
+
+/**
+ * depth first delete recursively
+ */
+static gboolean
+children_remove_cb (gpointer key, gpointer value, gpointer user_data)
+{
+ return node_try_delete ((node_t*)value);
+}
+
+gboolean
+node_class_init()
+{
+ ROOT = node_new (NULL, G_DIR_SEPARATOR_S);
+ if (ROOT == NULL) {
+ FN_W ("[node] Create ROOT node failed.\n");
+ return FALSE;
+ }
+
+ return port_class_init (node_add_event);
+}
+
+/**
+ * Adjust self on failing to Port
+ */
+void
+node_adjust_deleted(node_t* f)
+{
+ node_t *ancestor;
+
+ FN_W ("%s %s\n", __func__, NODE_NAME(f));
+
+ for (ancestor = NODE_PARENT(f);
+ ancestor != NULL;
+ ancestor = NODE_PARENT(ancestor)) {
+ /* Stop if we find a node which been already associated or is existed
+ * and can be associated.
+ */
+ if (NODE_HAS_STATE(ancestor, NODE_STATE_ASSOCIATED) ||
+ (node_lstat(ancestor) == 0 && port_add(ancestor) == 0)) {
+ break;
+ }
+ }
+
+ /* We assume we shouldn't reach here, because Root is always existed and
+ * associated. But given bugster#6955199, if PORT FS has problems on root,
+ * we may reach here. So just return ROOT and the whole GIO fen backend will
+ * fail.
+ */
+ /* g_assert(ancestor != NULL); */
+}
+
+
+static void
+node_emit_events(node_t *f, const node_event_t *ne)
+{
+ gsize num = sizeof(concern_events)/sizeof(int);
+ gint i;
+ int translated_e;
+ node_t *p;
+
+ if (node_timeval_lt(&f->atv, &ne->ctv)) {
+ int event = ne->e;
+
+ /* Emit DELETED on the pair_data */
+ if (ne->pair_data) {
+ node_t *from = ne->pair_data;
+ node_emit_one_event(from, from->dir_subs, NULL, node_event_translate(FILE_DELETE, FALSE));
+ node_emit_one_event(from, from->subs, NULL, node_event_translate(FILE_DELETE, FALSE));
+ }
+
+ for (i = 0; i < num; i++) {
+ if (event & concern_events[i]) {
+ translated_e = node_event_translate(concern_events[i], FALSE);
+ /* Neither GIO or gamin cares about modified events on a
+ * directory.
+ */
+#ifdef GIO_COMPILATION
+ if ((concern_events[i] & FILE_MODIFIED) == 0) {
+ node_emit_one_event(f, f->dir_subs, NULL, translated_e);
+ }
+#else
+ /* Gamin doesn't care about attrib changed events on a directory
+ * either.
+ */
+ if ((concern_events[i] & (FILE_MODIFIED | FILE_ATTRIB)) == 0) {
+ node_emit_one_event(f, f->dir_subs, NULL, translated_e);
+ }
+#endif
+ node_emit_one_event(f, f->subs, NULL, translated_e);
+ }
+ event &= ~concern_events[i];
+ }
+ }
+
+ p = NODE_PARENT(f);
+ if (p != NULL && node_timeval_lt(&p->atv, &ne->ctv)) {
+ int event = ne->e;
+ for (i = 0; i < num; i++) {
+ if (event & concern_events[i]) {
+ translated_e = node_event_translate(concern_events[i], ne->pair_data != NULL);
+ node_emit_one_event(f, p->dir_subs, ne->pair_data, translated_e);
+ node_emit_one_event(f, p->subs, ne->pair_data, translated_e);
+ }
+ event &= ~concern_events[i];
+ }
+ }
+}
+
+/**
+ * node_add_event:
+ *
+ */
+static void
+node_add_event (node_t *f, node_event_t *ev)
+{
+ FN_W ("%s %d\n", __func__, ev->e);
+
+ /* Clean the events flag early, because all received events need be
+ * processed in this function.
+ */
+ NODE_CLE_STATE(f, NODE_STATE_HAS_EVENTS);
+
+ /*
+ * Node the node has been created, so we can delete create event in
+ * optimizing. To reduce the statings, we add it to Port on discoving
+ * it then emit CREATED event. So we don't need to do anything here.
+ */
+ if (NODE_NEED_MONITOR(f)) {
+ if (HAS_NO_EXCEPTION_EVENTS(ev->e)) {
+ if (NODE_HAS_STATE(f, NODE_STATE_ASSOCIATED) || port_add(f) == 0) {
+ if ((ev->e & FILE_MODIFIED) && NODE_HAS_FLAG(f, NODE_FLAG_DIR)) {
+ if (f->dir_subs) {
+ node_create_children_snapshot(f, FN_EVENT_CREATED, TRUE);
+ } else {
+ g_hash_table_foreach(f->children, foreach_known_children_scan, NULL);
+ }
+ }
+ } else {
+ /* Emit delete event */
+ ev->e |= FILE_DELETE;
+
+ node_adjust_deleted(f);
+ }
+
+ } else {
+ node_adjust_deleted(f);
+ }
+
+ /* Send events to clients. */
+ node_emit_events (f, ev);
+
+ } else {
+ /* Send events to clients. */
+ node_emit_events (f, ev);
+
+ node_try_delete(f);
+ }
+
+ if (ev->pair_data) {
+ node_t *from = ev->pair_data;
+ g_assert(ev->e == FILE_RENAME_TO);
+
+ if (NODE_NEED_MONITOR(from)) {
+ /* Clean the events flag, since it may block free this node. */
+ NODE_CLE_STATE(from, NODE_STATE_HAS_EVENTS);
+ node_adjust_deleted(from);
+ } else {
+ node_try_delete(from);
+ }
+ }
+
+ node_event_delete (ev);
+}
+
+static void
+node_emit_one_event(node_t *f, GList *subs, node_t *other, int event)
+{
+ GList* idx;
+
+ FN_W ("%s %s %d\n", __func__, NODE_NAME(f), event);
+
+#ifdef GIO_COMPILATION
+ for (idx = subs; idx; idx = idx->next) {
+ g_file_monitor_emit_event(G_FILE_MONITOR(idx->data), f->gfile,
+ (other == NULL ? NULL : other->gfile), event);
+ }
+#else
+ for (idx = subs; idx; idx = idx->next) {
+ gam_server_emit_one_event(NODE_NAME(f), gam_subscription_is_dir(idx->data), event, idx->data, 1);
+ }
+#endif
+}
+
+static int
+node_event_translate(int event, gboolean pair)
+{
+#ifdef GIO_COMPILATION
+ switch (event) {
+ case FILE_DELETE:
+ case FILE_RENAME_FROM:
+ return G_FILE_MONITOR_EVENT_DELETED;
+ case UNMOUNTED:
+ return G_FILE_MONITOR_EVENT_UNMOUNTED;
+ case FILE_ATTRIB:
+ return G_FILE_MONITOR_EVENT_ATTRIBUTE_CHANGED;
+ case MOUNTEDOVER:
+ case FILE_MODIFIED:
+ return G_FILE_MONITOR_EVENT_CHANGED;
+ case FILE_RENAME_TO:
+ if (pair) {
+ return G_FILE_MONITOR_EVENT_MOVED;
+ } else {
+ return G_FILE_MONITOR_EVENT_CREATED;
+ }
+ default:
+ /* case FILE_ACCESS: */
+ g_assert_not_reached ();
+ return -1;
+ }
+#else
+ switch (event) {
+ case FILE_DELETE:
+ case FILE_RENAME_FROM:
+ return GAMIN_EVENT_DELETED;
+ case MOUNTEDOVER:
+ case UNMOUNTED:
+ return GAMIN_EVENT_CHANGED;
+ case FILE_RENAME_TO:
+ if (pair) {
+ return GAMIN_EVENT_MOVED;
+ } else {
+ return GAMIN_EVENT_CREATED;
+ }
+ default:
+ if (event & (FILE_ATTRIB | FILE_MODIFIED)) {
+ return GAMIN_EVENT_CHANGED;
+ }
+ /* case FILE_ACCESS: */
+ g_assert_not_reached ();
+ return -1;
+ }
+#endif
+}
+
+node_event_t*
+node_event_new (int event, gpointer user_data)
+{
+ node_event_t *ev;
+
+ if ((ev = g_new (node_event_t, 1)) != NULL) {
+ g_assert (ev);
+ ev->e = event;
+ ev->user_data = user_data;
+ ev->pair_data = NULL; /* For renamed file. */
+ /* Created timestamp */
+ g_get_current_time(&ev->ctv);
+ ev->rename_tv = ev->ctv;
+ }
+ return ev;
+}
+
+void
+node_event_delete (node_event_t* ev)
+{
+ g_free (ev);
+}
+
diff --git a/server/fen-node.h b/server/fen-node.h
new file mode 100644
index 0000000..7e99032
--- /dev/null
+++ b/server/fen-node.h
@@ -0,0 +1,104 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* vim:set expandtab ts=4 shiftwidth=4: */
+/*
+ * Copyright (c) 2008, 2010 Oracle and/or its affiliates, Inc. All rights
+ * reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General
+ * Public License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ * Authors: Lin Ma <[email protected]>
+ */
+
+#include <port.h>
+#include <gio/gio.h>
+
+#ifndef _FEN_NODE_H_
+#define _FEN_NODE_H_
+
+#ifdef GIO_COMPILATION
+#define FN_EVENT_CREATED G_FILE_MONITOR_EVENT_CREATED
+#else
+#define FN_EVENT_CREATED GAMIN_EVENT_CREATED
+#endif
+
+#define NODE_STATE_NONE 0x00000000
+#define NODE_STATE_ASSOCIATED 0x00000001 /* This is a confilct to NODE_FLAG_STAT_DONE */
+#define NODE_STATE_HAS_EVENTS 0x00000002
+
+#define NODE_FLAG_NONE 0x00000000
+#define NODE_FLAG_SNAPSHOT_UPDATED 0x00000001
+#define NODE_FLAG_DIR 0x00000002
+#define NODE_FLAG_STAT_UPDATED 0x00000004
+
+#define NODE_CLE_STATE(f, st) (f->state &= ~(st))
+#define NODE_SET_STATE(f, st) (f->state = ((f->state & ~(st)) | (st)))
+#define NODE_HAS_STATE(f, st) (f->state & (st))
+
+#define NODE_CLE_FLAG(f, fl) (f->flag &= ~(fl))
+#define NODE_SET_FLAG(f, fl) (f->flag = ((f->flag & ~(fl)) | (fl)))
+#define NODE_HAS_FLAG(f, fl) (f->flag & (fl))
+
+typedef struct node node_t;
+struct node
+{
+ file_obj_t fobj; /* Inherit from file_obj_t, must be the first. */
+ GSource *source;
+ gchar *basename;
+ guint32 state;
+ guint32 flag;
+ GTimeVal atv; /* Timestamp for the first added sub. */
+
+ /* the parent and children of node */
+ node_t *parent;
+ GHashTable *children; /* children in basename */
+
+ /* List of subscriptions monitoring this fdata/path */
+ GList *subs;
+ GList *dir_subs;
+
+#ifdef GIO_COMPILATION
+ GFile* gfile;
+#endif
+};
+
+#define FILE_OBJECT(f) ((file_obj_t *)(f))
+#define NODE_NAME(f) (FILE_OBJECT(f)->fo_name)
+#define NODE_PARENT(f) (((node_t *)f)->parent)
+#define NODE_IS_ACTIVE(f) (f->dir_subs || f->subs)
+#define NODE_IS_REQUIRED_BY_PARENT(f) (NODE_PARENT(f) && NODE_PARENT(f)->dir_subs)
+
+gboolean node_timeval_lt(const GTimeVal *val1, const GTimeVal *val2);
+gboolean node_try_delete(node_t* node);
+void node_traverse(node_t* node, void(*traverse_cb)(node_t*, gpointer), gpointer user_data);
+node_t* node_find(node_t* node, const gchar* filename, gboolean create_on_missing);
+gint node_lstat(node_t *f);
+void node_create_children_snapshot(node_t *f, gint created_event, gboolean emit);
+void node_adjust_deleted(node_t *f);
+gboolean node_class_init();
+
+typedef struct node_event
+{
+ int e;
+ gpointer user_data;
+ gpointer pair_data;
+ GTimeVal ctv; /* Created timestamp */
+ GTimeVal rename_tv; /* Possible rename timestamp */
+} node_event_t;
+
+node_event_t* node_event_new (int event, gpointer user_data);
+void node_event_delete (node_event_t* ev);
+
+#endif /* _FEN_NODE_H_ */
diff --git a/server/gam_channel.c b/server/gam_channel.c
index 56c3ea7..6db1692 100644
--- a/server/gam_channel.c
+++ b/server/gam_channel.c
@@ -7,6 +7,12 @@
#include <sys/stat.h>
#include <sys/un.h>
#include <sys/uio.h>
+#if defined(sun)
+#include <string.h>
+#endif
+#if defined(HAVE_UCRED_H)
+#include <ucred.h>
+#endif defined(HAVE_UCRED_H)
#include "gam_error.h"
#include "gam_connection.h"
#include "gam_channel.h"
@@ -101,6 +107,10 @@ gam_client_conn_check_cred(GIOChannel * source, int fd,
} cmsg;
#endif
+#if defined(HAVE_GETPEERUCRED)
+ ucred_t *creds;
+#endif
+
s_uid = getuid();
#if defined(LOCAL_CREDS) && defined(HAVE_CMSGCRED)
@@ -167,11 +177,25 @@ gam_client_conn_check_cred(GIOChannel * source, int fd,
fd, cr_len, (int) sizeof(cr));
goto failed;
}
+#elif defined(HAVE_GETPEERUCRED)
+ if ((creds = (ucred_t *)malloc(ucred_size()))==(ucred_t *)NULL){
+ GAM_DEBUG(DEBUG_INFO,"Malloc failed for ucreds");
+ goto failed;
+ }
+
+ if (getpeerucred(fd, &creds)!=0){
+ GAM_DEBUG(DEBUG_INFO,"getpeerucred call failed");
+ goto failed;
+ }
+ c_uid = ucred_getruid(creds);
+ c_gid = ucred_getrgid(creds);
+ c_pid = ucred_getpid(creds);
+ ucred_free(creds);
#elif defined(HAVE_CMSGCRED)
c_pid = cmsg.cred.cmcred_pid;
c_uid = cmsg.cred.cmcred_euid;
c_gid = cmsg.cred.cmcred_groups[0];
-#else /* !SO_PEERCRED && !HAVE_CMSGCRED */
+#else /* !SO_PEERCRED && !HAVE_CMSGCRED && !HAVE_GETPEERUCRED */
GAM_DEBUG(DEBUG_INFO,
"Socket credentials not supported on this OS\n");
goto failed;
diff --git a/server/gam_fen.c b/server/gam_fen.c
new file mode 100644
index 0000000..21476e1
--- /dev/null
+++ b/server/gam_fen.c
@@ -0,0 +1,140 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* vim:set expandtab ts=4 shiftwidth=4: */
+/*
+ * Copyright (C) 2008 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General
+ * Public License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ * Authors: Lin Ma <[email protected]>
+ */
+/*
+ * Design:
+ * A Solaris port has a resource limit of events (port_max_events) which
+ * limits the number of objects (fds) that can be actively associated objects
+ * whith the port. The default is (65536), but can be changed.
+ *
+ * project.max-port-ids identify the max number of ports
+ * process.max-port-events identify the max objs of a port
+ * process.max-file-descriptor identify the max fds of a process
+ *
+ * For a user server process, process.max-file-descriptor seems a bottleneck.
+ * I will use a port list for monitor fds to avoid process.max-file-descriptor
+ * is greater than process.max-port-events.
+ */
+#include "config.h"
+#include "gam_error.h"
+#include "gam_fen.h"
+#include "gam_event.h"
+#include "gam_server.h"
+#include "gam_protocol.h"
+#include <glib.h>
+#include "fen-helper.h"
+
+/**
+ * Initializes the FEN system. This must be called before
+ * any other functions in this module.
+ *
+ * @returns TRUE if initialization succeeded, FALSE otherwise
+ */
+
+gboolean
+gam_fen_init (void)
+{
+ if (!fen_init ())
+ return FALSE;
+
+ gam_server_install_kernel_hooks (GAMIN_K_FEN,
+ gam_fen_add_subscription,
+ gam_fen_remove_subscription,
+ gam_fen_remove_all_for,
+ NULL, NULL);
+ return TRUE;
+}
+
+/**
+ * Adds a subscription to be monitored.
+ *
+ * @param sub a #GamSubscription to be polled
+ * @returns TRUE if adding the subscription succeeded, FALSE otherwise
+ */
+
+gboolean
+gam_fen_add_subscription (GamSubscription *sub)
+{
+ g_debug ("[ %s ] sub[0x%p]\n", __func__, sub);
+
+ gam_listener_add_subscription (gam_subscription_get_listener (sub), sub);
+ fen_add (gam_subscription_get_path(sub),
+ sub,
+ gam_subscription_is_dir (sub));
+ return TRUE;
+}
+
+/**
+ * Removes a subscription which was being monitored.
+ *
+ * @param sub a #GamSubscription to remove
+ * @returns TRUE if removing the subscription succeeded, FALSE otherwise
+ */
+
+gboolean
+gam_fen_remove_subscription (GamSubscription *sub)
+{
+ g_debug ("[ %s ] sub[0x%p]\n", __func__, sub);
+
+ fen_remove (gam_subscription_get_path(sub),
+ sub,
+ gam_subscription_is_dir (sub));
+ /* free subscription */
+ gam_subscription_cancel(sub);
+ gam_subscription_free(sub);
+ return TRUE;
+}
+
+/**
+ * Stop monitoring all subscriptions for a given listener.
+ *
+ * @param listener a #GamListener
+ * @returns TRUE if removing the subscriptions succeeded, FALSE otherwise
+ */
+
+gboolean
+gam_fen_remove_all_for (GamListener *listener)
+{
+ GList *subs;
+ GList *idx;
+ gboolean success = TRUE;
+
+ subs = gam_listener_get_subscriptions (listener);
+
+ if (subs == NULL)
+ return FALSE;
+
+ for (idx = subs; idx != NULL; idx = idx->next) {
+ GamSubscription *sub = (GamSubscription *)idx->data;
+ g_assert (sub);
+ if (!gam_fen_remove_subscription (sub))
+ success = FALSE;
+ }
+
+ if (subs) {
+ g_list_free (subs);
+ return TRUE;
+ } else {
+ return FALSE;
+ }
+}
diff --git a/server/gam_fen.h b/server/gam_fen.h
new file mode 100644
index 0000000..47e952d
--- /dev/null
+++ b/server/gam_fen.h
@@ -0,0 +1,40 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* vim:set expandtab ts=4 shiftwidth=4: */
+/*
+ * Copyright (C) 2008 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General
+ * Public License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ * Authors: Lin Ma <[email protected]>
+ */
+
+#ifndef __GAM_FEN_H__
+#define __GAM_FEN_H__
+
+#include <glib.h>
+#include "gam_subscription.h"
+
+G_BEGIN_DECLS
+
+gboolean gam_fen_init (void);
+gboolean gam_fen_add_subscription (GamSubscription *sub);
+gboolean gam_fen_remove_subscription (GamSubscription *sub);
+gboolean gam_fen_remove_all_for (GamListener *listener);
+
+G_END_DECLS
+
+#endif /* __GAM_FEN_H__ */
diff --git a/server/gam_fs.c b/server/gam_fs.c
index c8ca704..1d2f2c8 100644
--- a/server/gam_fs.c
+++ b/server/gam_fs.c
@@ -7,9 +7,20 @@
#include <string.h>
#include <errno.h>
#include <glib.h>
+#ifdef HAVE_SYS_MNTTAB_H
+#include <sys/mnttab.h>
+#endif
#include "gam_error.h"
#include "gam_fs.h"
+#ifdef HAVE_SYS_MNTTAB_H
+#define MTAB MNTTAB
+#define MTABDEL "\t"
+#else
+#define MTAB "/etc/mtab"
+#define MTABDEL "\t"
+#endif
+
#define DEFAULT_POLL_TIMEOUT 0
typedef struct _gam_fs_properties {
@@ -119,7 +130,7 @@ gam_fs_scan_mtab (void)
gam_fs *fs = NULL;
int i;
- g_file_get_contents ("/etc/mtab", &contents, &len, NULL);
+ g_file_get_contents (MTAB, &contents, &len, NULL);
if (contents == NULL)
return;
@@ -133,7 +144,7 @@ gam_fs_scan_mtab (void)
if (line[0] == '\0')
continue;
- words = g_strsplit (line, " ", 0);
+ words = g_strsplit (line, MTABDEL, 0);
if (words == NULL)
continue;
@@ -176,19 +187,25 @@ gam_fs_init (void)
gam_fs_set ("ext2", GFS_MT_DEFAULT, 0);
gam_fs_set ("reiser4", GFS_MT_DEFAULT, 0);
gam_fs_set ("reiserfs", GFS_MT_DEFAULT, 0);
+ gam_fs_set ("zfs", GFS_MT_DEFAULT, 0);
+ gam_fs_set ("ufs", GFS_MT_DEFAULT, 0);
gam_fs_set ("novfs", GFS_MT_POLL, 30);
+#ifdef ENABLE_FEN
+ gam_fs_set ("nfs", GFS_MT_DEFAULT, 0);
+#else
gam_fs_set ("nfs", GFS_MT_POLL, 5);
- if (stat("/etc/mtab", &mtab_sbuf) != 0)
+#endif
+ if (stat(MTAB, &mtab_sbuf) != 0)
{
- GAM_DEBUG(DEBUG_INFO, "Could not stat /etc/mtab\n");
+ GAM_DEBUG(DEBUG_INFO, "Could not stat %s\n",MTAB);
}
gam_fs_scan_mtab ();
} else {
struct stat sbuf;
- if (stat("/etc/mtab", &sbuf) != 0)
+ if (stat(MTAB, &sbuf) != 0)
{
- GAM_DEBUG(DEBUG_INFO, "Could not stat /etc/mtab\n");
+ GAM_DEBUG(DEBUG_INFO, "Could not stat %s\n",MTAB);
}
/* /etc/mtab has changed */
diff --git a/server/gam_fs.h b/server/gam_fs.h
index bc2d538..94e70fd 100644
--- a/server/gam_fs.h
+++ b/server/gam_fs.h
@@ -8,6 +8,7 @@ typedef enum {
#if !defined(ENABLE_DNOTIFY) && \
!defined(ENABLE_INOTIFY) && \
!defined(ENABLE_KQUEUE) && \
+ !defined(ENABLE_FEN) && \
!defined(ENABLE_HURD_MACH_NOTIFY)
GFS_MT_DEFAULT = GFS_MT_POLL,
#else
diff --git a/server/gam_server.c b/server/gam_server.c
index f92a691..e5da29f 100644
--- a/server/gam_server.c
+++ b/server/gam_server.c
@@ -45,6 +45,9 @@
#ifdef ENABLE_HURD_MACH_NOTIFY
#include "gam_hurd_mach_notify.h"
#endif
+#ifdef ENABLE_FEN
+#include "gam_fen.h"
+#endif
#include "gam_excludes.h"
#include "gam_fs.h"
#include "gam_conf.h"
@@ -162,6 +165,12 @@ gam_init_subscriptions(void)
return(TRUE);
}
#endif
+#ifdef ENABLE_FEN
+ if (gam_fen_init()) {
+ GAM_DEBUG(DEBUG_INFO, "Using fen as backend\n");
+ return(TRUE);
+ }
+#endif
}
if (gam_poll_basic_init()) {
@@ -627,6 +636,10 @@ main(int argc, const char *argv[])
signal(SIGQUIT, gam_exit);
signal(SIGTERM, gam_exit);
signal(SIGPIPE, SIG_IGN);
+#ifdef ENABLE_FEN
+ signal(SIGUSR1, SIG_IGN);
+ signal(SIGUSR2, SIG_IGN);
+#endif
if (!gam_init_subscriptions()) {
GAM_DEBUG(DEBUG_INFO, "Could not initialize the subscription system.\n");
diff --git a/server/gam_server.h b/server/gam_server.h
index bc99e09..313dd84 100644
--- a/server/gam_server.h
+++ b/server/gam_server.h
@@ -16,7 +16,8 @@ typedef enum {
GAMIN_K_INOTIFY = 2,
GAMIN_K_KQUEUE = 3,
GAMIN_K_MACH = 4,
- GAMIN_K_INOTIFY2 = 5
+ GAMIN_K_INOTIFY2 = 5,
+ GAMIN_K_FEN = 6
} GamKernelHandler;
typedef enum {
diff --git a/tests/testing.c b/tests/testing.c
index 9926c0a..4c08740 100644
--- a/tests/testing.c
+++ b/tests/testing.c
@@ -1,3 +1,4 @@
+#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
@@ -31,6 +32,11 @@ static struct testState {
#define IS_BLANK(p) ((*(p) == ' ') || (*(p) == '\t') || \
(*(p) == '\n') || (*(p) == '\r'))
+#ifdef ENABLE_FEN
+#define KILLCMD "pkill"
+#else
+#define KILLCMD "killall"
+#endif
static int
scanCommand(char *line, char **command, char **arg, char **arg2)
@@ -268,7 +274,7 @@ processCommand(char *line, int no)
* okay, it's heavy but that's the simplest way since we do not have
* the pid(s) of the servers running.
*/
- ret = system("killall gam_server");
+ ret = system(KILLCMD" gam_server");
if (ret < 0) {
fprintf(stderr, "kill line %d: failed to killall gam_server\n",
no);