time-util: add and use USEC/NSEC_INFINIY

6 files changed, 47 insertions, 44 deletions

diff --git a/src/shared/logs-show.c b/src/shared/logs-show.c
index 8edf4087c6..5538dd3b9e 100644
--- a/src/shared/logs-show.c
+++ b/src/shared/logs-show.c
@@ -1032,7 +1032,7 @@ static int show_journal(FILE *f,
                 if (!(flags & OUTPUT_FOLLOW))
                         break;
 
-                r = sd_journal_wait(j, (usec_t) -1);
+                r = sd_journal_wait(j, USEC_INFINITY);
                 if (r < 0)
                         goto finish;
 
diff --git a/src/shared/spawn-polkit-agent.c b/src/shared/spawn-polkit-agent.c
index fccf1e9173..29b01db19a 100644
--- a/src/shared/spawn-polkit-agent.c
+++ b/src/shared/spawn-polkit-agent.c
@@ -67,7 +67,7 @@ int polkit_agent_open(void) {
                 log_error("Failed to fork TTY ask password agent: %s", strerror(-r));
         else
                 /* Wait until the agent closes the fd */
-                fd_wait_for_event(pipe_fd[0], POLLHUP, (usec_t) -1);
+                fd_wait_for_event(pipe_fd[0], POLLHUP, USEC_INFINITY);
 
         safe_close(pipe_fd[0]);
 
diff --git a/src/shared/time-util.c b/src/shared/time-util.c
index 76ab143f34..2dc01e6ed3 100644
--- a/src/shared/time-util.c
+++ b/src/shared/time-util.c
@@ -49,8 +49,8 @@ dual_timestamp* dual_timestamp_from_realtime(dual_timestamp *ts, usec_t u) {
         int64_t delta;
         assert(ts);
 
-        if (u == (usec_t) -1) {
-                ts->realtime = ts->monotonic = (usec_t) -1;
+        if (u == USEC_INFINITY) {
+                ts->realtime = ts->monotonic = USEC_INFINITY;
                 return ts;
         }
 
@@ -76,8 +76,8 @@ dual_timestamp* dual_timestamp_from_monotonic(dual_timestamp *ts, usec_t u) {
         int64_t delta;
         assert(ts);
 
-        if (u == (usec_t) -1) {
-                ts->realtime = ts->monotonic = (usec_t) -1;
+        if (u == USEC_INFINITY) {
+                ts->realtime = ts->monotonic = USEC_INFINITY;
                 return ts;
         }
 
@@ -98,10 +98,10 @@ usec_t timespec_load(const struct timespec *ts) {
 
         if (ts->tv_sec == (time_t) -1 &&
             ts->tv_nsec == (long) -1)
-                return (usec_t) -1;
+                return USEC_INFINITY;
 
         if ((usec_t) ts->tv_sec > (UINT64_MAX - (ts->tv_nsec / NSEC_PER_USEC)) / USEC_PER_SEC)
-                return (usec_t) -1;
+                return USEC_INFINITY;
 
         return
                 (usec_t) ts->tv_sec * USEC_PER_SEC +
@@ -111,7 +111,7 @@ usec_t timespec_load(const struct timespec *ts) {
 struct timespec *timespec_store(struct timespec *ts, usec_t u)  {
         assert(ts);
 
-        if (u == (usec_t) -1) {
+        if (u == USEC_INFINITY) {
                 ts->tv_sec = (time_t) -1;
                 ts->tv_nsec = (long) -1;
                 return ts;
@@ -128,10 +128,10 @@ usec_t timeval_load(const struct timeval *tv) {
 
         if (tv->tv_sec == (time_t) -1 &&
             tv->tv_usec == (suseconds_t) -1)
-                return (usec_t) -1;
+                return USEC_INFINITY;
 
         if ((usec_t) tv->tv_sec > (UINT64_MAX - tv->tv_usec) / USEC_PER_SEC)
-                return (usec_t) -1;
+                return USEC_INFINITY;
 
         return
                 (usec_t) tv->tv_sec * USEC_PER_SEC +
@@ -141,7 +141,7 @@ usec_t timeval_load(const struct timeval *tv) {
 struct timeval *timeval_store(struct timeval *tv, usec_t u) {
         assert(tv);
 
-        if (u == (usec_t) -1) {
+        if (u == USEC_INFINITY) {
                 tv->tv_sec = (time_t) -1;
                 tv->tv_usec = (suseconds_t) -1;
         } else {
@@ -159,7 +159,7 @@ char *format_timestamp(char *buf, size_t l, usec_t t) {
         assert(buf);
         assert(l > 0);
 
-        if (t <= 0 || t == (usec_t) -1)
+        if (t <= 0 || t == USEC_INFINITY)
                 return NULL;
 
         sec = (time_t) (t / USEC_PER_SEC);
@@ -177,7 +177,7 @@ char *format_timestamp_us(char *buf, size_t l, usec_t t) {
         assert(buf);
         assert(l > 0);
 
-        if (t <= 0 || t == (usec_t) -1)
+        if (t <= 0 || t == USEC_INFINITY)
                 return NULL;
 
         sec = (time_t) (t / USEC_PER_SEC);
@@ -198,7 +198,7 @@ char *format_timestamp_relative(char *buf, size_t l, usec_t t) {
 
         n = now(CLOCK_REALTIME);
 
-        if (t <= 0 || (t == (usec_t) -1))
+        if (t <= 0 || (t == USEC_INFINITY))
                 return NULL;
 
         if (n > t) {
@@ -279,7 +279,7 @@ char *format_timespan(char *buf, size_t l, usec_t t, usec_t accuracy) {
         assert(buf);
         assert(l > 0);
 
-        if (t == (usec_t) -1)
+        if (t == USEC_INFINITY)
                 return NULL;
 
         if (t <= 0) {
diff --git a/src/shared/time-util.h b/src/shared/time-util.h
index 69a48c686b..8ba1cfee8e 100644
--- a/src/shared/time-util.h
+++ b/src/shared/time-util.h
@@ -37,25 +37,28 @@ typedef struct dual_timestamp {
         usec_t monotonic;
 } dual_timestamp;
 
-#define MSEC_PER_SEC  ((usec_t) 1000ULL)
+#define USEC_INFINITY ((usec_t) -1)
+#define NSEC_INFINITY ((nsec_t) -1)
+
+#define MSEC_PER_SEC  1000ULL
 #define USEC_PER_SEC  ((usec_t) 1000000ULL)
 #define USEC_PER_MSEC ((usec_t) 1000ULL)
-#define NSEC_PER_SEC  ((usec_t) 1000000000ULL)
-#define NSEC_PER_MSEC ((usec_t) 1000000ULL)
-#define NSEC_PER_USEC ((usec_t) 1000ULL)
+#define NSEC_PER_SEC  ((nsec_t) 1000000000ULL)
+#define NSEC_PER_MSEC ((nsec_t) 1000000ULL)
+#define NSEC_PER_USEC ((nsec_t) 1000ULL)
 
 #define USEC_PER_MINUTE ((usec_t) (60ULL*USEC_PER_SEC))
-#define NSEC_PER_MINUTE ((usec_t) (60ULL*NSEC_PER_SEC))
+#define NSEC_PER_MINUTE ((nsec_t) (60ULL*NSEC_PER_SEC))
 #define USEC_PER_HOUR ((usec_t) (60ULL*USEC_PER_MINUTE))
-#define NSEC_PER_HOUR ((usec_t) (60ULL*NSEC_PER_MINUTE))
+#define NSEC_PER_HOUR ((nsec_t) (60ULL*NSEC_PER_MINUTE))
 #define USEC_PER_DAY ((usec_t) (24ULL*USEC_PER_HOUR))
-#define NSEC_PER_DAY ((usec_t) (24ULL*NSEC_PER_HOUR))
+#define NSEC_PER_DAY ((nsec_t) (24ULL*NSEC_PER_HOUR))
 #define USEC_PER_WEEK ((usec_t) (7ULL*USEC_PER_DAY))
-#define NSEC_PER_WEEK ((usec_t) (7ULL*NSEC_PER_DAY))
+#define NSEC_PER_WEEK ((nsec_t) (7ULL*NSEC_PER_DAY))
 #define USEC_PER_MONTH ((usec_t) (2629800ULL*USEC_PER_SEC))
-#define NSEC_PER_MONTH ((usec_t) (2629800ULL*NSEC_PER_SEC))
+#define NSEC_PER_MONTH ((nsec_t) (2629800ULL*NSEC_PER_SEC))
 #define USEC_PER_YEAR ((usec_t) (31557600ULL*USEC_PER_SEC))
-#define NSEC_PER_YEAR ((usec_t) (31557600ULL*NSEC_PER_SEC))
+#define NSEC_PER_YEAR ((nsec_t) (31557600ULL*NSEC_PER_SEC))
 
 #define FORMAT_TIMESTAMP_MAX ((4*4+1)+11+9+4+1) /* weekdays can be unicode */
 #define FORMAT_TIMESTAMP_WIDTH 28 /* when outputting, assume this width */
@@ -71,8 +74,8 @@ dual_timestamp* dual_timestamp_from_realtime(dual_timestamp *ts, usec_t u);
 dual_timestamp* dual_timestamp_from_monotonic(dual_timestamp *ts, usec_t u);
 
 static inline bool dual_timestamp_is_set(dual_timestamp *ts) {
-        return ((ts->realtime > 0 && ts->realtime != (usec_t) -1) ||
-                (ts->monotonic > 0 && ts->monotonic != (usec_t) -1));
+        return ((ts->realtime > 0 && ts->realtime != USEC_INFINITY) ||
+                (ts->monotonic > 0 && ts->monotonic != USEC_INFINITY));
 }
 
 usec_t timespec_load(const struct timespec *ts) _pure_;
diff --git a/src/shared/util.c b/src/shared/util.c
index 49c17eff85..b1689e651f 100644
--- a/src/shared/util.c
+++ b/src/shared/util.c
@@ -1581,7 +1581,7 @@ int read_one_char(FILE *f, char *ret, usec_t t, bool *need_nl) {
                 if (tcsetattr(fileno(f), TCSADRAIN, &new_termios) >= 0) {
                         size_t k;
 
-                        if (t != (usec_t) -1) {
+                        if (t != USEC_INFINITY) {
                                 if (fd_wait_for_event(fileno(f), POLLIN, t) <= 0) {
                                         tcsetattr(fileno(f), TCSADRAIN, &old_termios);
                                         return -ETIMEDOUT;
@@ -1603,7 +1603,7 @@ int read_one_char(FILE *f, char *ret, usec_t t, bool *need_nl) {
                 }
         }
 
-        if (t != (usec_t) -1) {
+        if (t != USEC_INFINITY) {
                 if (fd_wait_for_event(fileno(f), POLLIN, t) <= 0)
                         return -ETIMEDOUT;
         }
@@ -1648,7 +1648,7 @@ int ask_char(char *ret, const char *replies, const char *text, ...) {
 
                 fflush(stdout);
 
-                r = read_one_char(stdin, &c, (usec_t) -1, &need_nl);
+                r = read_one_char(stdin, &c, USEC_INFINITY, &need_nl);
                 if (r < 0) {
 
                         if (r == -EBADMSG) {
@@ -1898,11 +1898,11 @@ int acquire_terminal(
          * on the same tty as an untrusted user this should not be a
          * problem. (Which he probably should not do anyway.) */
 
-        if (timeout != (usec_t) -1)
+        if (timeout != USEC_INFINITY)
                 ts = now(CLOCK_MONOTONIC);
 
         if (!fail && !force) {
-                notify = inotify_init1(IN_CLOEXEC | (timeout != (usec_t) -1 ? IN_NONBLOCK : 0));
+                notify = inotify_init1(IN_CLOEXEC | (timeout != USEC_INFINITY ? IN_NONBLOCK : 0));
                 if (notify < 0) {
                         r = -errno;
                         goto fail;
@@ -1966,7 +1966,7 @@ int acquire_terminal(
                         ssize_t l;
                         struct inotify_event *e;
 
-                        if (timeout != (usec_t) -1) {
+                        if (timeout != USEC_INFINITY) {
                                 usec_t n;
 
                                 n = now(CLOCK_MONOTONIC);
@@ -2148,7 +2148,7 @@ ssize_t loop_read(int fd, void *buf, size_t nbytes, bool do_poll) {
                          * and expect that any error/EOF is reported
                          * via read() */
 
-                        fd_wait_for_event(fd, POLLIN, (usec_t) -1);
+                        fd_wait_for_event(fd, POLLIN, USEC_INFINITY);
                         continue;
                 }
 
@@ -2183,7 +2183,7 @@ ssize_t loop_write(int fd, const void *buf, size_t nbytes, bool do_poll) {
                          * and expect that any error/EOF is reported
                          * via write() */
 
-                        fd_wait_for_event(fd, POLLOUT, (usec_t) -1);
+                        fd_wait_for_event(fd, POLLOUT, USEC_INFINITY);
                         continue;
                 }
 
@@ -3428,7 +3428,7 @@ int touch_file(const char *path, bool parents, usec_t stamp, uid_t uid, gid_t gi
                         return -errno;
         }
 
-        if (stamp != (usec_t) -1) {
+        if (stamp != USEC_INFINITY) {
                 struct timespec ts[2];
 
                 timespec_store(&ts[0], stamp);
@@ -3443,7 +3443,7 @@ int touch_file(const char *path, bool parents, usec_t stamp, uid_t uid, gid_t gi
 }
 
 int touch(const char *path) {
-        return touch_file(path, false, (usec_t) -1, (uid_t) -1, (gid_t) -1, 0);
+        return touch_file(path, false, USEC_INFINITY, (uid_t) -1, (gid_t) -1, 0);
 }
 
 char *unquote(const char *s, const char* quotes) {
@@ -3904,7 +3904,7 @@ void execute_directory(const char *directory, DIR *d, usec_t timeout, char *argv
                  * timout. We simply rely on SIGALRM as default action
                  * terminating the process, and turn on alarm(). */
 
-                if (timeout != (usec_t) -1)
+                if (timeout != USEC_INFINITY)
                         alarm((timeout + USEC_PER_SEC - 1) / USEC_PER_SEC);
 
                 while (!hashmap_isempty(pids)) {
@@ -4074,7 +4074,7 @@ int fd_wait_for_event(int fd, int event, usec_t t) {
         struct timespec ts;
         int r;
 
-        r = ppoll(&pollfd, 1, t == (usec_t) -1 ? NULL : timespec_store(&ts, t), NULL);
+        r = ppoll(&pollfd, 1, t == USEC_INFINITY ? NULL : timespec_store(&ts, t), NULL);
         if (r < 0)
                 return -errno;
 
@@ -5273,7 +5273,7 @@ int make_console_stdio(void) {
 
         /* Make /dev/console the controlling terminal and stdin/stdout/stderr */
 
-        fd = acquire_terminal("/dev/console", false, true, true, (usec_t) -1);
+        fd = acquire_terminal("/dev/console", false, true, true, USEC_INFINITY);
         if (fd < 0) {
                 log_error("Failed to acquire terminal: %s", strerror(-fd));
                 return fd;
diff --git a/src/shared/watchdog.c b/src/shared/watchdog.c
index ba9ad9be97..7d188d98e8 100644
--- a/src/shared/watchdog.c
+++ b/src/shared/watchdog.c
@@ -29,7 +29,7 @@
 #include "log.h"
 
 static int watchdog_fd = -1;
-static usec_t watchdog_timeout = (usec_t) -1;
+static usec_t watchdog_timeout = USEC_INFINITY;
 
 static int update_timeout(void) {
         int r;
@@ -37,7 +37,7 @@ static int update_timeout(void) {
         if (watchdog_fd < 0)
                 return 0;
 
-        if (watchdog_timeout == (usec_t) -1)
+        if (watchdog_timeout == USEC_INFINITY)
                 return 0;
         else if (watchdog_timeout == 0) {
                 int flags;
@@ -104,7 +104,7 @@ int watchdog_set_timeout(usec_t *usec) {
 
         /* If we didn't open the watchdog yet and didn't get any
          * explicit timeout value set, don't do anything */
-        if (watchdog_fd < 0 && watchdog_timeout == (usec_t) -1)
+        if (watchdog_fd < 0 && watchdog_timeout == USEC_INFINITY)
                 return 0;
 
         if (watchdog_fd < 0)