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Compiler independent buffer alignment

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This commit is contained in:
Bert Münnich 2017-05-17 20:15:35 +02:00
parent 0e1a85d224
commit de3d7827ce
1 changed files with 7 additions and 3 deletions
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10
autoreload_inotify.c
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@ -56,22 +56,26 @@ static void arl_setup_dir(arl_t *arl, const char *filepath)
free(dntmp); free(dntmp);
} }
union {
char d[4096]; /* aligned buffer */
struct inotify_event e;
} buf;
bool arl_handle(arl_t *arl, const char *filepath) bool arl_handle(arl_t *arl, const char *filepath)
{ {
bool reload = false; bool reload = false;
char buf[4096] __attribute__ ((aligned(__alignof__(struct inotify_event))));
char *ptr; char *ptr;
const struct inotify_event *event; const struct inotify_event *event;
for (;;) { for (;;) {
ssize_t len = read(arl->fd, buf, sizeof(buf)); ssize_t len = read(arl->fd, buf.d, sizeof(buf.d));
if (len == -1) { if (len == -1) {
if (errno == EINTR) if (errno == EINTR)
continue; continue;
break; break;
} }
for (ptr = buf; ptr < buf + len; ptr += sizeof(*event) + event->len) { for (ptr = buf.d; ptr < buf.d + len; ptr += sizeof(*event) + event->len) {
event = (const struct inotify_event*) ptr; event = (const struct inotify_event*) ptr;
/* events from watching the file itself */ /* events from watching the file itself */