#include <sys/signalfd.h>
#include <sys/stat.h>
#include <sys/sysmacros.h>
+#include <sys/timerfd.h>
#include <sys/types.h>
#include <linux/types.h>
#include <linux/lustre/lustre_user.h>
#include <linux/lustre/lustre_access_log.h>
+#include "ofd_access_batch.h"
#include "lstddef.h"
/* TODO fsname filter */
fprintf(trace_file, "TRACE "fmt, ##args); \
} while (0)
-#define DEBUG_D(x) DEBUG("%s = %d\n", #x, x)
+#define DEBUG_D(x) DEBUG("%s = %"PRIdMAX"\n", #x, (intmax_t)x)
#define DEBUG_P(x) DEBUG("%s = %p\n", #x, x)
#define DEBUG_S(x) DEBUG("%s = '%s'\n", #x, x)
-#define DEBUG_U(x) DEBUG("%s = %u\n", #x, x)
-#define DEBUG_U32(x) DEBUG("%s = %"PRIu32"\n", #x, x)
-#define DEBUG_U64(x) DEBUG("%s = %"PRIu64"\n", #x, x)
+#define DEBUG_U(x) DEBUG("%s = %"PRIuMAX"\n", #x, (uintmax_t)x)
#define ERROR(fmt, args...) \
fprintf(stderr, "%s: "fmt, program_invocation_short_name, ##args)
static int oal_version; /* FIXME ... major version, minor version */
static unsigned int oal_log_major;
static unsigned int oal_log_minor_max;
+static struct alr_batch *alr_batch;
+static FILE *alr_batch_file;
+static const char *alr_batch_file_path;
#define D_ALR_DEV "%s %d"
#define P_ALR_DEV(ad) \
(unsigned int)oae->oae_size,
(unsigned int)oae->oae_segment_count,
alr_flags_to_str(oae->oae_flags));
+
+ alr_batch_add(alr_batch, ad->alr_name, &oae->oae_parent_fid,
+ oae->oae_time, oae->oae_begin, oae->oae_end,
+ oae->oae_size, oae->oae_segment_count, oae->oae_flags);
}
return ALR_OK;
int fd = -1;
int rc;
+ DEBUG_S(path);
+
fd = open(path, O_RDONLY|O_NONBLOCK|O_CLOEXEC);
if (fd < 0) {
ERROR("cannot open device '%s': %s\n", path, strerror(errno));
if (rc <= 0)
return ALR_OK;
- DEBUG_U32(ssi.ssi_signo);
+ DEBUG_U(ssi.ssi_signo);
switch (ssi.ssi_signo) {
case SIGINT:
case SIGTERM:
}
}
+/* batching timerfd epoll callback. Print batched access entries to
+ * alr_batch_file. */
+static int alr_batch_timer_io(int epoll_fd, struct alr_dev *td, unsigned int mask)
+{
+ time_t now = time(NULL);
+ uint64_t expire_count;
+ ssize_t rc;
+
+ TRACE("%s\n", __func__);
+ DEBUG_D(now);
+ DEBUG_U(mask);
+
+ rc = read(td->alr_fd, &expire_count, sizeof(expire_count));
+ if (rc <= 0)
+ return ALR_OK;
+
+ DEBUG_U(expire_count);
+
+ rc = alr_batch_print(alr_batch, alr_batch_file);
+ if (rc < 0) {
+ ERROR("cannot write to '%s': %s\n",
+ alr_batch_file_path, strerror(errno));
+ goto out;
+ }
+
+ /* FIXME: blocking write to batch file. */
+ rc = fflush(alr_batch_file);
+ if (rc < 0) {
+ ERROR("cannot write to '%s': %s\n",
+ alr_batch_file_path, strerror(errno));
+ goto out;
+ }
+out:
+ /* Failed writes will leave alr_batch_file (pipe) in a
+ * weird state so make that fatal. */
+ return (rc < 0) ? ALR_EXIT_FAILURE : ALR_OK;
+}
+
/* Call LUSTRE_ACCESS_LOG_IOCTL_INFO to get access log info and print
* YAML formatted info to stdout. */
static int alr_log_info(struct alr_log *al)
return alr;
}
+void usage(void)
+{
+ printf("Usage: %s: [OPTION]...\n"
+"Discover, read, batch, and write Lustre access logs\n"
+"\n"
+"Mandatory arguments to long options are mandatory for short options too.\n"
+" -f, --batch-file=FILE print batch to file (default stdout)\n"
+" -i, --batch-interval=INTERVAL print batch every INTERVAL seconds\n"
+" -o, --batch-offset=OFFSET print batch at OFFSET seconds\n"
+" -d, --debug[=FILE] print debug messages to FILE (stderr)\n"
+" -h, --help display this help and exit\n"
+" -l, --list print YAML list of available access logs\n"
+" -t, --trace[=FILE] print trace messages to FILE (stderr)\n",
+ program_invocation_short_name);
+}
+
int main(int argc, char *argv[])
{
const char ctl_path[] = "/dev/"LUSTRE_ACCESS_LOG_DIR_NAME"/control";
struct alr_dev *alr_signal = NULL;
+ struct alr_dev *alr_batch_timer = NULL;
struct alr_dev *alr_ctl = NULL;
+ time_t batch_interval = 0;
+ time_t batch_offset = 0;
unsigned int m;
int list_info = 0;
int epoll_fd = -1;
- int signal_fd = -1;
- int ctl_fd = -1;
int exit_status;
int rc;
int c;
static struct option options[] = {
+ { .name = "batch-file", .has_arg = required_argument, .val = 'f', },
+ { .name = "batch-interval", .has_arg = required_argument, .val = 'i', },
+ { .name = "batch-offset", .has_arg = required_argument, .val = 'o', },
{ .name = "debug", .has_arg = optional_argument, .val = 'd', },
{ .name = "help", .has_arg = no_argument, .val = 'h', },
{ .name = "list", .has_arg = no_argument, .val = 'l', },
{ .name = NULL, },
};
- while ((c = getopt_long(argc, argv, "d::hlt::", options, NULL)) != -1) {
+ while ((c = getopt_long(argc, argv, "d::f:hi:lt::", options, NULL)) != -1) {
switch (c) {
+ case 'f':
+ alr_batch_file_path = optarg;
+ break;
+ case 'i':
+ errno = 0;
+ batch_interval = strtoll(optarg, NULL, 0);
+ if (batch_interval < 0 || batch_interval >= 1048576 ||
+ errno != 0)
+ FATAL("invalid batch interval '%s'\n", optarg);
+ break;
+ case 'o':
+ errno = 0;
+ batch_offset = strtoll(optarg, NULL, 0);
+ if (batch_offset < 0 || batch_offset >= 1048576 ||
+ errno != 0)
+ FATAL("invalid batch offset '%s'\n", optarg);
+ break;
case 'd':
if (optarg == NULL) {
debug_file = stderr;
break;
case 'h':
- /* ... */
+ usage();
exit(EXIT_SUCCESS);
case 'l':
list_info = 1;
break;
case '?':
- /* Try ... for more ... */
+ fprintf(stderr, "Try '%s --help' for more information.\n",
+ program_invocation_short_name);
exit(EXIT_FAILURE);
}
}
+ if (batch_interval > 0) {
+ alr_batch = alr_batch_create(-1);
+ if (alr_batch == NULL)
+ FATAL("cannot create batch struct: %s\n",
+ strerror(errno));
+ }
+
+ if (alr_batch_file_path != NULL) {
+ alr_batch_file = fopen(alr_batch_file_path, "w");
+ if (alr_batch_file == NULL)
+ FATAL("cannot open batch file '%s': %s\n",
+ alr_batch_file_path, strerror(errno));
+ } else {
+ alr_batch_file_path = "stdout";
+ alr_batch_file = stdout;
+ }
+
epoll_fd = epoll_create1(EPOLL_CLOEXEC);
if (epoll_fd < 0)
FATAL("cannot create epoll set: %s\n", strerror(errno));
if (rc < 0)
FATAL("cannot set process signal mask: %s\n", strerror(errno));
- signal_fd = signalfd(-1, &signal_mask, SFD_NONBLOCK|SFD_CLOEXEC);
+ int signal_fd = signalfd(-1, &signal_mask, SFD_NONBLOCK|SFD_CLOEXEC);
if (signal_fd < 0)
FATAL("cannot create signalfd: %s\n", strerror(errno));
signal_fd = -1;
+ /* Setup batch timer FD and add to epoll set. */
+ struct timespec now;
+ rc = clock_gettime(CLOCK_REALTIME, &now);
+ if (rc < 0)
+ FATAL("cannot read realtime clock: %s\n", strerror(errno));
+
+ int timer_fd = timerfd_create(CLOCK_REALTIME, TFD_NONBLOCK|TFD_CLOEXEC);
+ if (timer_fd < 0)
+ FATAL("cannot create batch timerfd: %s\n", strerror(errno));
+
+ struct itimerspec it = {
+ .it_value.tv_sec = (batch_interval > 0) ?
+ roundup(now.tv_sec, batch_interval) +
+ (batch_offset % batch_interval) :
+ 0,
+ .it_interval.tv_sec = batch_interval,
+ };
+
+ DEBUG_D(it.it_value.tv_sec);
+
+ rc = timerfd_settime(timer_fd, TFD_TIMER_ABSTIME, &it, NULL);
+ if (rc < 0)
+ FATAL("cannot arm timerfd: %s\n", strerror(errno));
+
+ alr_batch_timer = alr_dev_create(epoll_fd, timer_fd, "batch_timer",
+ &alr_batch_timer_io, NULL);
+ if (alr_batch_timer == NULL)
+ FATAL("cannot register batch timerfd: %s\n", strerror(errno));
+
+ timer_fd = -1;
+
/* Open control device. */
- ctl_fd = open(ctl_path, O_RDONLY|O_NONBLOCK|O_CLOEXEC);
+ int ctl_fd = open(ctl_path, O_RDONLY|O_NONBLOCK|O_CLOEXEC);
if (ctl_fd < 0)
FATAL("cannot open '%s': %s\n", ctl_path, strerror(errno));
alr_dev_free(epoll_fd, alr_ctl);
alr_dev_free(epoll_fd, alr_signal);
+ alr_dev_free(epoll_fd, alr_batch_timer);
close(epoll_fd);
+ alr_batch_destroy(alr_batch);
+
DEBUG_D(exit_status);
return exit_status;
git://git.whamcloud.com / fs / lustre-release.git / blobdiff