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Documentation/fs/: split txt and source files
Make dnotify_test.c source file and add it to Makefile so that bitrot can be prevented. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@@ -1,3 +1,3 @@ | ||
obj-m := DocBook/ accounting/ auxdisplay/ connector/ \ | ||
filesystems/configfs/ ia64/ laptops/ networking/ \ | ||
filesystems/ filesystems/configfs/ ia64/ laptops/ networking/ \ | ||
pcmcia/ spi/ timers/ video4linux/ vm/ watchdog/src/ |
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@@ -0,0 +1,8 @@ | ||
# kbuild trick to avoid linker error. Can be omitted if a module is built. | ||
obj- := dummy.o | ||
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# List of programs to build | ||
hostprogs-y := dnotify_test | ||
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# Tell kbuild to always build the programs | ||
always := $(hostprogs-y) |
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#define _GNU_SOURCE /* needed to get the defines */ | ||
#include <fcntl.h> /* in glibc 2.2 this has the needed | ||
values defined */ | ||
#include <signal.h> | ||
#include <stdio.h> | ||
#include <unistd.h> | ||
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static volatile int event_fd; | ||
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static void handler(int sig, siginfo_t *si, void *data) | ||
{ | ||
event_fd = si->si_fd; | ||
} | ||
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int main(void) | ||
{ | ||
struct sigaction act; | ||
int fd; | ||
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act.sa_sigaction = handler; | ||
sigemptyset(&act.sa_mask); | ||
act.sa_flags = SA_SIGINFO; | ||
sigaction(SIGRTMIN + 1, &act, NULL); | ||
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fd = open(".", O_RDONLY); | ||
fcntl(fd, F_SETSIG, SIGRTMIN + 1); | ||
fcntl(fd, F_NOTIFY, DN_MODIFY|DN_CREATE|DN_MULTISHOT); | ||
/* we will now be notified if any of the files | ||
in "." is modified or new files are created */ | ||
while (1) { | ||
pause(); | ||
printf("Got event on fd=%d\n", event_fd); | ||
} | ||
} |