pnx/archived
Archived
1
0
Fork 0
Code Activity

inotify.c: use inotify-map.

Browse source
This commit is contained in:
Henrik Hautakoski 2011-01-18 23:02:59 +01:00
parent cc590370bf
commit 72bdd8bb03
1 changed files with 56 additions and 67 deletions
Download patch file Download diff file Expand all files Collapse all files

123
src/inotify.c
View file

@ -18,9 +18,8 @@
#include <sys/ioctl.h>
#include <sys/inotify.h>
#include "inotify-map.h"
#include "util.h"
/* red black tree for watch descriptors */
#include "rbtree.h"
#include "log.h"
#include "path.h"
#include "queue.h"
@ -38,9 +37,6 @@ static int init = 0;
/* Inotify file descriptor */
static int fd;
/* redblack tree */
static rbtree tree = RBTREE_INIT(free, NULL, strcmp);
static queue_t event_queue;
static int addwatch(const char *path, const char *name, unsigned recursive) {
@ -61,7 +57,7 @@ static int addwatch(const char *path, const char *name, unsigned recursive) {
return -1;
}
rbtree_insert(&tree, wd, npath);
inotify_map(wd, npath);
logmsg(LOG_DEBUG, "added wd = %i on %s", wd, npath);
@ -98,25 +94,25 @@ static int addwatch(const char *path, const char *name, unsigned recursive) {
static int rmwatch(const char *path, const char *name) {
char *fpath;
rbnode *node;
int wd;
fpath = path_normalize(path, name, 1);
if (!fpath)
return -1;
node = rbtree_cmp_search(&tree, fpath);
if (node == NULL) {
wd = inotify_map_get_wd(fpath);
if (wd <= 0) {
logmsg(LOG_DEBUG, "remove watch: can't find %s", fpath);
free(fpath);
return -1;
}
logmsg(LOG_DEBUG, "remove watch: %i %s", wd, fpath);
free(fpath);
logmsg(LOG_DEBUG, "remove watch: %i %s", node->key, (char*) node->data);
if (inotify_rm_watch(fd, node->key) < 0) {
if (inotify_rm_watch(fd, wd) < 0) {
logerrno(LOG_CRIT, "intotify_rm_watch", errno);
return -1;
}
@ -125,68 +121,67 @@ static int rmwatch(const char *path, const char *name) {
static void proc_event(inoev *iev) {
rbnode *node;
notify_event *event;
uint8_t type = NOTIFY_UNKNOWN;
const struct str_list *paths;
char **path;
int isdir;
logmsg(LOG_DEBUG, "RAW EVENT: %i, %x, %s", iev->wd, iev->mask, iev->name);
/* this event is triggered when a watch descriptor is removed.
so we can do a binary search instead of useing the IN_DELETE
event (that may be triggered on a parent wd) to do a traverse search */
if (iev->mask & IN_IGNORED) {
rbtree_delete(&tree, iev->wd);
inotify_unmap_wd(iev->wd);
return;
}
/* lookup the watch descriptor in rbtree */
node = rbtree_search(&tree, iev->wd);
paths = inotify_map_lookup(iev->wd);
if (!node) {
if (!paths) {
logmsg(LOG_WARN, "-- IGNORING EVENT -- invalid watchdescriptor %i", iev->wd);
return;
}
event = notify_event_new();
if (!event)
return;
/* set dir and drop that bit off (so its not in the way) */
event->dir = (iev->mask & IN_ISDIR) != 0;
iev->mask &= ~IN_ISDIR;
notify_event_set_path(event, node->data);
notify_event_set_filename(event, iev->name);
/* set dir and drop that bit off (so its not in the way) */
isdir = (iev->mask & IN_ISDIR) != 0;
iev->mask &= ~IN_ISDIR;
/* queue event before doing any fscrawl on a subdirectory
to prevent messing up the order */
queue_enqueue(event_queue, event);
str_list_foreach(path, paths) {
uint8_t type = NOTIFY_UNKNOWN;
notify_event *event = notify_event_new();
notify_event_set_path(event, *path);
notify_event_set_filename(event, iev->name);
event->dir = isdir;
/* queue event before doing any fscrawl on a subdirectory
to prevent messing up the order */
queue_enqueue(event_queue, event);
switch(iev->mask) {
case IN_CREATE :
if (event->dir) {
logmsg(LOG_DEBUG, "IN_CREATE on directory, adding");
addwatch(event->path, event->filename, 0);
switch(iev->mask) {
case IN_CREATE :
if (event->dir) {
logmsg(LOG_DEBUG, "IN_CREATE on directory, adding");
addwatch(event->path, event->filename, 0);
}
type = NOTIFY_CREATE;
break;
case IN_MOVED_TO :
if (event->dir) {
logmsg(LOG_DEBUG, "IN_MOVED_TO on directory, adding");
addwatch(event->path, event->filename, 1);
}
type = NOTIFY_CREATE;
break;
case IN_MOVED_FROM :
if (event->dir)
rmwatch(event->path, event->filename);
case IN_DELETE :
type = NOTIFY_DELETE;
break;
}
type = NOTIFY_CREATE;
break;
case IN_MOVED_TO :
if (event->dir) {
logmsg(LOG_DEBUG, "IN_MOVED_TO on directory, adding");
addwatch(event->path, event->filename, 1);
}
type = NOTIFY_CREATE;
break;
case IN_MOVED_FROM :
if (event->dir)
rmwatch(event->path, event->filename);
case IN_DELETE :
type = NOTIFY_DELETE;
break;
}
event->type = type;
event->type = type;
}
}
int notify_init() {
@ -214,8 +209,8 @@ void notify_exit() {
return;
close(fd);
rbtree_free(&tree);
inotify_unmap_all();
if (event_queue) {
notify_event *e;
@ -302,14 +297,8 @@ notify_event* notify_read() {
return queue_dequeue(event_queue);
}
static void print_node(rbnode *node) {
printf("%i: %s\n", node->key, (char*) node->data);
}
void notify_stat() {
if (!init)
die("inotify is not instantiated.");
rbtree_walk(&tree, print_node);
}