… | |
… | |
94 | # else |
94 | # else |
95 | # define EV_USE_PORT 0 |
95 | # define EV_USE_PORT 0 |
96 | # endif |
96 | # endif |
97 | # endif |
97 | # endif |
98 | |
98 | |
|
|
99 | # ifndef EV_USE_INOTIFY |
|
|
100 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
|
|
101 | # define EV_USE_INOTIFY 1 |
|
|
102 | # else |
|
|
103 | # define EV_USE_INOTIFY 0 |
|
|
104 | # endif |
|
|
105 | # endif |
|
|
106 | |
99 | #endif |
107 | #endif |
100 | |
108 | |
101 | #include <math.h> |
109 | #include <math.h> |
102 | #include <stdlib.h> |
110 | #include <stdlib.h> |
103 | #include <fcntl.h> |
111 | #include <fcntl.h> |
… | |
… | |
109 | #include <errno.h> |
117 | #include <errno.h> |
110 | #include <sys/types.h> |
118 | #include <sys/types.h> |
111 | #include <time.h> |
119 | #include <time.h> |
112 | |
120 | |
113 | #include <signal.h> |
121 | #include <signal.h> |
|
|
122 | |
|
|
123 | #ifdef EV_H |
|
|
124 | # include EV_H |
|
|
125 | #else |
|
|
126 | # include "ev.h" |
|
|
127 | #endif |
114 | |
128 | |
115 | #ifndef _WIN32 |
129 | #ifndef _WIN32 |
116 | # include <sys/time.h> |
130 | # include <sys/time.h> |
117 | # include <sys/wait.h> |
131 | # include <sys/wait.h> |
118 | # include <unistd.h> |
132 | # include <unistd.h> |
… | |
… | |
156 | |
170 | |
157 | #ifndef EV_USE_PORT |
171 | #ifndef EV_USE_PORT |
158 | # define EV_USE_PORT 0 |
172 | # define EV_USE_PORT 0 |
159 | #endif |
173 | #endif |
160 | |
174 | |
|
|
175 | #ifndef EV_USE_INOTIFY |
|
|
176 | # define EV_USE_INOTIFY 0 |
|
|
177 | #endif |
|
|
178 | |
161 | #ifndef EV_PID_HASHSIZE |
179 | #ifndef EV_PID_HASHSIZE |
162 | # if EV_MINIMAL |
180 | # if EV_MINIMAL |
163 | # define EV_PID_HASHSIZE 1 |
181 | # define EV_PID_HASHSIZE 1 |
164 | # else |
182 | # else |
165 | # define EV_PID_HASHSIZE 16 |
183 | # define EV_PID_HASHSIZE 16 |
166 | # endif |
184 | # endif |
167 | #endif |
185 | #endif |
168 | |
186 | |
|
|
187 | #ifndef EV_INOTIFY_HASHSIZE |
|
|
188 | # if EV_MINIMAL |
|
|
189 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
190 | # else |
|
|
191 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
192 | # endif |
|
|
193 | #endif |
|
|
194 | |
169 | /**/ |
195 | /**/ |
170 | |
196 | |
171 | #ifndef CLOCK_MONOTONIC |
197 | #ifndef CLOCK_MONOTONIC |
172 | # undef EV_USE_MONOTONIC |
198 | # undef EV_USE_MONOTONIC |
173 | # define EV_USE_MONOTONIC 0 |
199 | # define EV_USE_MONOTONIC 0 |
… | |
… | |
180 | |
206 | |
181 | #if EV_SELECT_IS_WINSOCKET |
207 | #if EV_SELECT_IS_WINSOCKET |
182 | # include <winsock.h> |
208 | # include <winsock.h> |
183 | #endif |
209 | #endif |
184 | |
210 | |
|
|
211 | #if !EV_STAT_ENABLE |
|
|
212 | # define EV_USE_INOTIFY 0 |
|
|
213 | #endif |
|
|
214 | |
|
|
215 | #if EV_USE_INOTIFY |
|
|
216 | # include <sys/inotify.h> |
|
|
217 | #endif |
|
|
218 | |
185 | /**/ |
219 | /**/ |
186 | |
220 | |
187 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
221 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
188 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
222 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
189 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
223 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
190 | |
|
|
191 | #ifdef EV_H |
|
|
192 | # include EV_H |
|
|
193 | #else |
|
|
194 | # include "ev.h" |
|
|
195 | #endif |
|
|
196 | |
224 | |
197 | #if __GNUC__ >= 3 |
225 | #if __GNUC__ >= 3 |
198 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
226 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
199 | # define inline_size static inline /* inline for codesize */ |
227 | # define inline_size static inline /* inline for codesize */ |
200 | # if EV_MINIMAL |
228 | # if EV_MINIMAL |
… | |
… | |
296 | { |
324 | { |
297 | W w; |
325 | W w; |
298 | int events; |
326 | int events; |
299 | } ANPENDING; |
327 | } ANPENDING; |
300 | |
328 | |
|
|
329 | typedef struct |
|
|
330 | { |
|
|
331 | #if EV_USE_INOTIFY |
|
|
332 | WL head; |
|
|
333 | #endif |
|
|
334 | } ANFS; |
|
|
335 | |
301 | #if EV_MULTIPLICITY |
336 | #if EV_MULTIPLICITY |
302 | |
337 | |
303 | struct ev_loop |
338 | struct ev_loop |
304 | { |
339 | { |
305 | ev_tstamp ev_rt_now; |
340 | ev_tstamp ev_rt_now; |
… | |
… | |
879 | |
914 | |
880 | if (!(flags & 0x0000ffffUL)) |
915 | if (!(flags & 0x0000ffffUL)) |
881 | flags |= ev_recommended_backends (); |
916 | flags |= ev_recommended_backends (); |
882 | |
917 | |
883 | backend = 0; |
918 | backend = 0; |
|
|
919 | backend_fd = -1; |
|
|
920 | #if EV_USE_INOTIFY |
|
|
921 | fs_fd = -2; |
|
|
922 | #endif |
|
|
923 | |
884 | #if EV_USE_PORT |
924 | #if EV_USE_PORT |
885 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
925 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
886 | #endif |
926 | #endif |
887 | #if EV_USE_KQUEUE |
927 | #if EV_USE_KQUEUE |
888 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
928 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
904 | |
944 | |
905 | static void noinline |
945 | static void noinline |
906 | loop_destroy (EV_P) |
946 | loop_destroy (EV_P) |
907 | { |
947 | { |
908 | int i; |
948 | int i; |
|
|
949 | |
|
|
950 | #if EV_USE_INOTIFY |
|
|
951 | if (fs_fd >= 0) |
|
|
952 | close (fs_fd); |
|
|
953 | #endif |
|
|
954 | |
|
|
955 | if (backend_fd >= 0) |
|
|
956 | close (backend_fd); |
909 | |
957 | |
910 | #if EV_USE_PORT |
958 | #if EV_USE_PORT |
911 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
959 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
912 | #endif |
960 | #endif |
913 | #if EV_USE_KQUEUE |
961 | #if EV_USE_KQUEUE |
… | |
… | |
1665 | # endif |
1713 | # endif |
1666 | |
1714 | |
1667 | #define DEF_STAT_INTERVAL 5.0074891 |
1715 | #define DEF_STAT_INTERVAL 5.0074891 |
1668 | #define MIN_STAT_INTERVAL 0.1074891 |
1716 | #define MIN_STAT_INTERVAL 0.1074891 |
1669 | |
1717 | |
|
|
1718 | void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
1719 | |
|
|
1720 | #if EV_USE_INOTIFY |
|
|
1721 | # define EV_INOTIFY_BUFSIZE ((PATH_MAX + sizeof (struct inotify_event)) + 2048) |
|
|
1722 | |
|
|
1723 | static void noinline |
|
|
1724 | infy_add (EV_P_ ev_stat *w) |
|
|
1725 | { |
|
|
1726 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
|
|
1727 | |
|
|
1728 | if (w->wd < 0) |
|
|
1729 | { |
|
|
1730 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
1731 | |
|
|
1732 | /* monitor some parent directory for speedup hints */ |
|
|
1733 | if (errno == ENOENT || errno == EACCES) |
|
|
1734 | { |
|
|
1735 | char path [PATH_MAX]; |
|
|
1736 | strcpy (path, w->path); |
|
|
1737 | |
|
|
1738 | do |
|
|
1739 | { |
|
|
1740 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
1741 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
1742 | |
|
|
1743 | char *pend = strrchr (path, '/'); |
|
|
1744 | |
|
|
1745 | if (!pend) |
|
|
1746 | break; /* whoops, no '/', complain to your admin */ |
|
|
1747 | |
|
|
1748 | *pend = 0; |
|
|
1749 | w->wd = inotify_add_watch (fs_fd, path, IN_DELETE_SELF | IN_CREATE | IN_MOVED_TO | IN_MASK_ADD); |
|
|
1750 | } |
|
|
1751 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
1752 | } |
|
|
1753 | } |
|
|
1754 | else |
|
|
1755 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
1756 | |
|
|
1757 | if (w->wd >= 0) |
|
|
1758 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
1759 | } |
|
|
1760 | |
|
|
1761 | static void noinline |
|
|
1762 | infy_del (EV_P_ ev_stat *w) |
|
|
1763 | { |
|
|
1764 | WL w_; |
|
|
1765 | int slot; |
|
|
1766 | int wd = w->wd; |
|
|
1767 | |
|
|
1768 | if (wd < 0) |
|
|
1769 | return; |
|
|
1770 | |
|
|
1771 | w->wd = -2; |
|
|
1772 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
1773 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
1774 | |
|
|
1775 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
1776 | inotify_rm_watch (fs_fd, wd); |
|
|
1777 | } |
|
|
1778 | |
|
|
1779 | static void noinline |
|
|
1780 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
1781 | { |
|
|
1782 | if (slot < 0) |
|
|
1783 | /* overflow, need to check for all hahs slots */ |
|
|
1784 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
1785 | infy_wd (EV_A_ slot, wd, ev); |
|
|
1786 | else |
|
|
1787 | { |
|
|
1788 | WL w_; |
|
|
1789 | |
|
|
1790 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
1791 | { |
|
|
1792 | ev_stat *w = (ev_stat *)w_; |
|
|
1793 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
1794 | |
|
|
1795 | if (w->wd == wd || wd == -1) |
|
|
1796 | { |
|
|
1797 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
1798 | { |
|
|
1799 | w->wd = -1; |
|
|
1800 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
1801 | } |
|
|
1802 | |
|
|
1803 | stat_timer_cb (EV_P_ &w->timer, 0); |
|
|
1804 | } |
|
|
1805 | } |
|
|
1806 | } |
|
|
1807 | } |
|
|
1808 | |
|
|
1809 | static void |
|
|
1810 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
1811 | { |
|
|
1812 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
1813 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
1814 | int ofs; |
|
|
1815 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
1816 | |
|
|
1817 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
1818 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
1819 | } |
|
|
1820 | |
|
|
1821 | void inline_size |
|
|
1822 | infy_init (EV_P) |
|
|
1823 | { |
|
|
1824 | if (fs_fd != -2) |
|
|
1825 | return; |
|
|
1826 | |
|
|
1827 | fs_fd = inotify_init (); |
|
|
1828 | |
|
|
1829 | if (fs_fd >= 0) |
|
|
1830 | { |
|
|
1831 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
1832 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
1833 | ev_io_start (EV_A_ &fs_w); |
|
|
1834 | } |
|
|
1835 | } |
|
|
1836 | |
|
|
1837 | #endif |
|
|
1838 | |
1670 | void |
1839 | void |
1671 | ev_stat_stat (EV_P_ ev_stat *w) |
1840 | ev_stat_stat (EV_P_ ev_stat *w) |
1672 | { |
1841 | { |
1673 | if (lstat (w->path, &w->attr) < 0) |
1842 | if (lstat (w->path, &w->attr) < 0) |
1674 | w->attr.st_nlink = 0; |
1843 | w->attr.st_nlink = 0; |
1675 | else if (!w->attr.st_nlink) |
1844 | else if (!w->attr.st_nlink) |
1676 | w->attr.st_nlink = 1; |
1845 | w->attr.st_nlink = 1; |
1677 | } |
1846 | } |
1678 | |
1847 | |
1679 | static void |
1848 | void noinline |
1680 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
1849 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
1681 | { |
1850 | { |
1682 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
1851 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
1683 | |
1852 | |
1684 | /* we copy this here each the time so that */ |
1853 | /* we copy this here each the time so that */ |
1685 | /* prev has the old value when the callback gets invoked */ |
1854 | /* prev has the old value when the callback gets invoked */ |
1686 | w->prev = w->attr; |
1855 | w->prev = w->attr; |
1687 | ev_stat_stat (EV_A_ w); |
1856 | ev_stat_stat (EV_A_ w); |
1688 | |
1857 | |
1689 | if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata))) |
1858 | if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata))) |
|
|
1859 | { |
|
|
1860 | #if EV_USE_INOTIFY |
|
|
1861 | infy_del (EV_A_ w); |
|
|
1862 | infy_add (EV_A_ w); |
|
|
1863 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
1864 | #endif |
|
|
1865 | |
1690 | ev_feed_event (EV_A_ w, EV_STAT); |
1866 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
1867 | } |
1691 | } |
1868 | } |
1692 | |
1869 | |
1693 | void |
1870 | void |
1694 | ev_stat_start (EV_P_ ev_stat *w) |
1871 | ev_stat_start (EV_P_ ev_stat *w) |
1695 | { |
1872 | { |
… | |
… | |
1705 | if (w->interval < MIN_STAT_INTERVAL) |
1882 | if (w->interval < MIN_STAT_INTERVAL) |
1706 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
1883 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
1707 | |
1884 | |
1708 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
1885 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
1709 | ev_set_priority (&w->timer, ev_priority (w)); |
1886 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
1887 | |
|
|
1888 | #if EV_USE_INOTIFY |
|
|
1889 | infy_init (EV_A); |
|
|
1890 | |
|
|
1891 | if (fs_fd >= 0) |
|
|
1892 | infy_add (EV_A_ w); |
|
|
1893 | else |
|
|
1894 | #endif |
1710 | ev_timer_start (EV_A_ &w->timer); |
1895 | ev_timer_start (EV_A_ &w->timer); |
1711 | |
1896 | |
1712 | ev_start (EV_A_ (W)w, 1); |
1897 | ev_start (EV_A_ (W)w, 1); |
1713 | } |
1898 | } |
1714 | |
1899 | |
1715 | void |
1900 | void |
… | |
… | |
1717 | { |
1902 | { |
1718 | ev_clear_pending (EV_A_ (W)w); |
1903 | ev_clear_pending (EV_A_ (W)w); |
1719 | if (expect_false (!ev_is_active (w))) |
1904 | if (expect_false (!ev_is_active (w))) |
1720 | return; |
1905 | return; |
1721 | |
1906 | |
|
|
1907 | #if EV_USE_INOTIFY |
|
|
1908 | infy_del (EV_A_ w); |
|
|
1909 | #endif |
1722 | ev_timer_stop (EV_A_ &w->timer); |
1910 | ev_timer_stop (EV_A_ &w->timer); |
1723 | |
1911 | |
1724 | ev_stop (EV_A_ (W)w); |
1912 | ev_stop (EV_A_ (W)w); |
1725 | } |
1913 | } |
1726 | #endif |
1914 | #endif |