diff options
Diffstat (limited to 'Documentation/filesystems/dnotify.txt')
-rw-r--r-- | Documentation/filesystems/dnotify.txt | 39 |
1 files changed, 5 insertions, 34 deletions
diff --git a/Documentation/filesystems/dnotify.txt b/Documentation/filesystems/dnotify.txt index 9f5d338ddbb8..6baf88f46859 100644 --- a/Documentation/filesystems/dnotify.txt +++ b/Documentation/filesystems/dnotify.txt | |||
@@ -62,38 +62,9 @@ disabled, fcntl(fd, F_NOTIFY, ...) will return -EINVAL. | |||
62 | 62 | ||
63 | Example | 63 | Example |
64 | ------- | 64 | ------- |
65 | See Documentation/filesystems/dnotify_test.c for an example. | ||
65 | 66 | ||
66 | #define _GNU_SOURCE /* needed to get the defines */ | 67 | NOTE |
67 | #include <fcntl.h> /* in glibc 2.2 this has the needed | 68 | ---- |
68 | values defined */ | 69 | Beginning with Linux 2.6.13, dnotify has been replaced by inotify. |
69 | #include <signal.h> | 70 | See Documentation/filesystems/inotify.txt for more information on it. |
70 | #include <stdio.h> | ||
71 | #include <unistd.h> | ||
72 | |||
73 | static volatile int event_fd; | ||
74 | |||
75 | static void handler(int sig, siginfo_t *si, void *data) | ||
76 | { | ||
77 | event_fd = si->si_fd; | ||
78 | } | ||
79 | |||
80 | int main(void) | ||
81 | { | ||
82 | struct sigaction act; | ||
83 | int fd; | ||
84 | |||
85 | act.sa_sigaction = handler; | ||
86 | sigemptyset(&act.sa_mask); | ||
87 | act.sa_flags = SA_SIGINFO; | ||
88 | sigaction(SIGRTMIN + 1, &act, NULL); | ||
89 | |||
90 | fd = open(".", O_RDONLY); | ||
91 | fcntl(fd, F_SETSIG, SIGRTMIN + 1); | ||
92 | fcntl(fd, F_NOTIFY, DN_MODIFY|DN_CREATE|DN_MULTISHOT); | ||
93 | /* we will now be notified if any of the files | ||
94 | in "." is modified or new files are created */ | ||
95 | while (1) { | ||
96 | pause(); | ||
97 | printf("Got event on fd=%d\n", event_fd); | ||
98 | } | ||
99 | } | ||