[9c7a701] | 1 | #include "owl.h" |
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| 2 | |
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[1895c29] | 3 | static int dispatch_active = 0; |
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[4f2166b] | 4 | static int psa_active = 0; |
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[1895c29] | 5 | |
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[9cf96c8] | 6 | int _owl_select_timer_cmp(const owl_timer *t1, const owl_timer *t2) { |
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[ca1fc33a] | 7 | return t1->time - t2->time; |
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[b7bb454] | 8 | } |
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| 9 | |
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[9cf96c8] | 10 | int _owl_select_timer_eq(const owl_timer *t1, const owl_timer *t2) { |
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[ca1fc33a] | 11 | return t1 == t2; |
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[b7bb454] | 12 | } |
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| 13 | |
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[c675b39] | 14 | owl_timer *owl_select_add_timer(int after, int interval, void (*cb)(owl_timer *, void *), void (*destroy)(owl_timer*), void *data) |
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[b7bb454] | 15 | { |
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[ca1fc33a] | 16 | owl_timer *t = owl_malloc(sizeof(owl_timer)); |
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[58d1f8a] | 17 | GList **timers = owl_global_get_timerlist(&g); |
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[b7bb454] | 18 | |
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[ca1fc33a] | 19 | t->time = time(NULL) + after; |
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| 20 | t->interval = interval; |
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| 21 | t->callback = cb; |
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[c675b39] | 22 | t->destroy = destroy; |
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[ca1fc33a] | 23 | t->data = data; |
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[b7bb454] | 24 | |
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[58d1f8a] | 25 | *timers = g_list_insert_sorted(*timers, t, |
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| 26 | (GCompareFunc)_owl_select_timer_cmp); |
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[ca1fc33a] | 27 | return t; |
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[b7bb454] | 28 | } |
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| 29 | |
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| 30 | void owl_select_remove_timer(owl_timer *t) |
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| 31 | { |
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[58d1f8a] | 32 | GList **timers = owl_global_get_timerlist(&g); |
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| 33 | if (t && g_list_find(*timers, t)) { |
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| 34 | *timers = g_list_remove(*timers, t); |
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[c675b39] | 35 | if(t->destroy) { |
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| 36 | t->destroy(t); |
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| 37 | } |
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[ca1fc33a] | 38 | owl_free(t); |
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| 39 | } |
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[b7bb454] | 40 | } |
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| 41 | |
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[3a84694] | 42 | void owl_select_process_timers(struct timespec *timeout) |
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[b7bb454] | 43 | { |
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[ca1fc33a] | 44 | time_t now = time(NULL); |
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[58d1f8a] | 45 | GList **timers = owl_global_get_timerlist(&g); |
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[b7bb454] | 46 | |
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[58d1f8a] | 47 | while(*timers) { |
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| 48 | owl_timer *t = (*timers)->data; |
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[c675b39] | 49 | int remove = 0; |
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[b7bb454] | 50 | |
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[ca1fc33a] | 51 | if(t->time > now) |
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| 52 | break; |
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[b7bb454] | 53 | |
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[ca1fc33a] | 54 | /* Reschedule if appropriate */ |
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| 55 | if(t->interval > 0) { |
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| 56 | t->time = now + t->interval; |
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[58d1f8a] | 57 | *timers = g_list_remove(*timers, t); |
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| 58 | *timers = g_list_insert_sorted(*timers, t, |
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| 59 | (GCompareFunc)_owl_select_timer_cmp); |
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[ca1fc33a] | 60 | } else { |
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[c675b39] | 61 | remove = 1; |
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[ca1fc33a] | 62 | } |
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[b7bb454] | 63 | |
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[ca1fc33a] | 64 | /* Do the callback */ |
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[c675b39] | 65 | t->callback(t, t->data); |
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| 66 | if(remove) { |
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| 67 | owl_select_remove_timer(t); |
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| 68 | } |
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[ca1fc33a] | 69 | } |
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[b7bb454] | 70 | |
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[58d1f8a] | 71 | if(*timers) { |
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| 72 | owl_timer *t = (*timers)->data; |
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[ca1fc33a] | 73 | timeout->tv_sec = t->time - now; |
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[58d1f8a] | 74 | if (timeout->tv_sec > 60) |
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| 75 | timeout->tv_sec = 60; |
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| 76 | } else { |
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| 77 | timeout->tv_sec = 60; |
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[ca1fc33a] | 78 | } |
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[b7bb454] | 79 | |
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[3a84694] | 80 | timeout->tv_nsec = 0; |
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[b7bb454] | 81 | } |
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| 82 | |
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[df0138f] | 83 | static const owl_io_dispatch *owl_select_find_io_dispatch_by_fd(const int fd) |
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| 84 | { |
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| 85 | int i, len; |
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| 86 | const owl_list *dl; |
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| 87 | owl_io_dispatch *d; |
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| 88 | dl = owl_global_get_io_dispatch_list(&g); |
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| 89 | len = owl_list_get_size(dl); |
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| 90 | for(i = 0; i < len; i++) { |
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| 91 | d = owl_list_get_element(dl, i); |
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| 92 | if (d->fd == fd) return d; |
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| 93 | } |
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| 94 | return NULL; |
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| 95 | } |
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| 96 | |
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| 97 | static int owl_select_find_io_dispatch(const owl_io_dispatch *in) |
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| 98 | { |
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| 99 | int i, len; |
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| 100 | const owl_list *dl; |
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| 101 | |
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| 102 | if (in != NULL) { |
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| 103 | dl = owl_global_get_io_dispatch_list(&g); |
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| 104 | len = owl_list_get_size(dl); |
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| 105 | for(i = 0; i < len; i++) { |
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| 106 | const owl_io_dispatch *d = owl_list_get_element(dl, i); |
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| 107 | if (d == in) return i; |
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| 108 | } |
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| 109 | } |
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| 110 | return -1; |
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| 111 | } |
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| 112 | |
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| 113 | void owl_select_remove_io_dispatch(const owl_io_dispatch *in) |
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| 114 | { |
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| 115 | int elt; |
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| 116 | if (in != NULL) { |
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| 117 | elt = owl_select_find_io_dispatch(in); |
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| 118 | if (elt != -1) { |
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| 119 | owl_list *dl = owl_global_get_io_dispatch_list(&g); |
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| 120 | owl_io_dispatch *d = owl_list_get_element(dl, elt); |
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| 121 | if (dispatch_active) |
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| 122 | d->needs_gc = 1; |
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| 123 | else { |
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| 124 | owl_list_remove_element(dl, elt); |
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| 125 | if (d->destroy) |
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| 126 | d->destroy(d); |
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| 127 | owl_free(d); |
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| 128 | } |
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| 129 | } |
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| 130 | } |
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| 131 | } |
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| 132 | |
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| 133 | void owl_select_io_dispatch_gc(void) |
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| 134 | { |
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| 135 | int i; |
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| 136 | owl_list *dl; |
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| 137 | |
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| 138 | dl = owl_global_get_io_dispatch_list(&g); |
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| 139 | /* |
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| 140 | * Count down so we aren't set off by removing items from the list |
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| 141 | * during the iteration. |
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| 142 | */ |
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| 143 | for(i = owl_list_get_size(dl) - 1; i >= 0; i--) { |
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| 144 | owl_io_dispatch *d = owl_list_get_element(dl, i); |
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| 145 | if(d->needs_gc) { |
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| 146 | owl_select_remove_io_dispatch(d); |
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| 147 | } |
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| 148 | } |
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| 149 | } |
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| 150 | |
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| 151 | /* Each FD may have at most one dispatcher. |
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| 152 | * If a new dispatch is added for an FD, the old one is removed. |
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| 153 | * mode determines what types of events are watched for, and may be any combination of: |
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| 154 | * OWL_IO_READ, OWL_IO_WRITE, OWL_IO_EXCEPT |
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| 155 | */ |
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| 156 | const owl_io_dispatch *owl_select_add_io_dispatch(int fd, int mode, void (*cb)(const owl_io_dispatch *, void *), void (*destroy)(const owl_io_dispatch *), void *data) |
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| 157 | { |
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| 158 | owl_io_dispatch *d = owl_malloc(sizeof(owl_io_dispatch)); |
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| 159 | owl_list *dl = owl_global_get_io_dispatch_list(&g); |
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| 160 | |
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| 161 | d->fd = fd; |
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| 162 | d->needs_gc = 0; |
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| 163 | d->mode = mode; |
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| 164 | d->callback = cb; |
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| 165 | d->destroy = destroy; |
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| 166 | d->data = data; |
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| 167 | |
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| 168 | owl_select_remove_io_dispatch(owl_select_find_io_dispatch_by_fd(fd)); |
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| 169 | owl_list_append_element(dl, d); |
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| 170 | |
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| 171 | return d; |
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| 172 | } |
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| 173 | |
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| 174 | int owl_select_prepare_io_dispatch_fd_sets(fd_set *rfds, fd_set *wfds, fd_set *efds) { |
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| 175 | int i, len, max_fd; |
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| 176 | owl_io_dispatch *d; |
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| 177 | owl_list *dl = owl_global_get_io_dispatch_list(&g); |
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| 178 | |
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| 179 | max_fd = 0; |
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| 180 | len = owl_list_get_size(dl); |
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| 181 | for (i = 0; i < len; i++) { |
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| 182 | d = owl_list_get_element(dl, i); |
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| 183 | if (d->mode & (OWL_IO_READ | OWL_IO_WRITE | OWL_IO_EXCEPT)) { |
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| 184 | if (max_fd < d->fd) max_fd = d->fd; |
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| 185 | if (d->mode & OWL_IO_READ) FD_SET(d->fd, rfds); |
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| 186 | if (d->mode & OWL_IO_WRITE) FD_SET(d->fd, wfds); |
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| 187 | if (d->mode & OWL_IO_EXCEPT) FD_SET(d->fd, efds); |
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| 188 | } |
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| 189 | } |
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| 190 | return max_fd + 1; |
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| 191 | } |
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| 192 | |
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| 193 | void owl_select_io_dispatch(const fd_set *rfds, const fd_set *wfds, const fd_set *efds, const int max_fd) |
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| 194 | { |
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| 195 | int i, len; |
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| 196 | owl_io_dispatch *d; |
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| 197 | owl_list *dl = owl_global_get_io_dispatch_list(&g); |
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| 198 | |
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| 199 | dispatch_active = 1; |
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| 200 | len = owl_list_get_size(dl); |
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| 201 | for (i = 0; i < len; i++) { |
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| 202 | d = owl_list_get_element(dl, i); |
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| 203 | if (d->fd < max_fd && d->callback != NULL && |
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| 204 | ((d->mode & OWL_IO_READ && FD_ISSET(d->fd, rfds)) || |
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| 205 | (d->mode & OWL_IO_WRITE && FD_ISSET(d->fd, wfds)) || |
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| 206 | (d->mode & OWL_IO_EXCEPT && FD_ISSET(d->fd, efds)))) { |
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| 207 | d->callback(d, d->data); |
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| 208 | } |
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| 209 | } |
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| 210 | dispatch_active = 0; |
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| 211 | owl_select_io_dispatch_gc(); |
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| 212 | } |
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| 213 | |
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| 214 | int owl_select_add_perl_io_dispatch(int fd, int mode, SV *cb) |
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| 215 | { |
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| 216 | const owl_io_dispatch *d = owl_select_find_io_dispatch_by_fd(fd); |
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| 217 | if (d != NULL && d->callback != owl_perlconfig_io_dispatch) { |
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| 218 | /* Don't mess with non-perl dispatch functions from here. */ |
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| 219 | return 1; |
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| 220 | } |
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| 221 | owl_select_add_io_dispatch(fd, mode, owl_perlconfig_io_dispatch, owl_perlconfig_io_dispatch_destroy, cb); |
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| 222 | return 0; |
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| 223 | } |
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| 224 | |
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| 225 | int owl_select_remove_perl_io_dispatch(int fd) |
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| 226 | { |
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| 227 | const owl_io_dispatch *d = owl_select_find_io_dispatch_by_fd(fd); |
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| 228 | if (d != NULL && d->callback == owl_perlconfig_io_dispatch) { |
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| 229 | /* Only remove perl io dispatchers from here. */ |
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| 230 | owl_select_remove_io_dispatch(d); |
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| 231 | return 0; |
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| 232 | } |
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| 233 | return 1; |
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| 234 | } |
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| 235 | |
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[2f69081] | 236 | int owl_select_aim_hack(fd_set *rfds, fd_set *wfds) |
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[9c7a701] | 237 | { |
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| 238 | aim_conn_t *cur; |
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| 239 | aim_session_t *sess; |
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| 240 | int max_fd; |
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| 241 | |
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| 242 | max_fd = 0; |
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| 243 | sess = owl_global_get_aimsess(&g); |
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| 244 | for (cur = sess->connlist, max_fd = 0; cur; cur = cur->next) { |
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| 245 | if (cur->fd != -1) { |
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[2f69081] | 246 | FD_SET(cur->fd, rfds); |
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| 247 | if (cur->status & AIM_CONN_STATUS_INPROGRESS) { |
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| 248 | /* Yes, we're checking writable sockets here. Without it, AIM |
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| 249 | login is really slow. */ |
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| 250 | FD_SET(cur->fd, wfds); |
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| 251 | } |
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| 252 | |
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[9c7a701] | 253 | if (cur->fd > max_fd) |
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| 254 | max_fd = cur->fd; |
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| 255 | } |
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| 256 | } |
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| 257 | return max_fd; |
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| 258 | } |
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| 259 | |
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[5a35c708] | 260 | void owl_process_input_char(owl_input j) |
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| 261 | { |
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| 262 | int ret; |
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| 263 | owl_popwin *pw; |
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| 264 | owl_editwin *tw; |
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| 265 | |
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| 266 | owl_global_set_lastinputtime(&g, time(NULL)); |
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| 267 | pw=owl_global_get_popwin(&g); |
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| 268 | tw=owl_global_get_typwin(&g); |
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| 269 | |
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| 270 | owl_global_set_lastinputtime(&g, time(NULL)); |
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| 271 | /* find and activate the current keymap. |
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| 272 | * TODO: this should really get fixed by activating |
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| 273 | * keymaps as we switch between windows... |
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| 274 | */ |
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| 275 | if (pw && owl_popwin_is_active(pw) && owl_global_get_viewwin(&g)) { |
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| 276 | owl_context_set_popless(owl_global_get_context(&g), |
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| 277 | owl_global_get_viewwin(&g)); |
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| 278 | owl_function_activate_keymap("popless"); |
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| 279 | } else if (owl_global_is_typwin_active(&g) |
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| 280 | && owl_editwin_get_style(tw)==OWL_EDITWIN_STYLE_ONELINE) { |
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| 281 | /* |
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| 282 | owl_context_set_editline(owl_global_get_context(&g), tw); |
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| 283 | owl_function_activate_keymap("editline"); |
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| 284 | */ |
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| 285 | } else if (owl_global_is_typwin_active(&g) |
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| 286 | && owl_editwin_get_style(tw)==OWL_EDITWIN_STYLE_MULTILINE) { |
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| 287 | owl_context_set_editmulti(owl_global_get_context(&g), tw); |
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| 288 | owl_function_activate_keymap("editmulti"); |
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| 289 | } else { |
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| 290 | owl_context_set_recv(owl_global_get_context(&g)); |
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| 291 | owl_function_activate_keymap("recv"); |
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| 292 | } |
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| 293 | /* now actually handle the keypress */ |
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| 294 | ret = owl_keyhandler_process(owl_global_get_keyhandler(&g), j); |
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| 295 | if (ret!=0 && ret!=1) { |
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| 296 | owl_function_makemsg("Unable to handle keypress"); |
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| 297 | } |
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| 298 | } |
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| 299 | |
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[40bda84] | 300 | void owl_select_mask_signals(sigset_t *oldmask) { |
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| 301 | sigset_t set; |
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| 302 | |
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| 303 | sigemptyset(&set); |
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| 304 | sigaddset(&set, SIGINT); |
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| 305 | sigprocmask(SIG_BLOCK, &set, oldmask); |
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| 306 | } |
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| 307 | |
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| 308 | void owl_select_handle_intr(sigset_t *restore) |
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[3a84694] | 309 | { |
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| 310 | owl_input in; |
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[0cb6c26] | 311 | |
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| 312 | owl_global_unset_interrupted(&g); |
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[40bda84] | 313 | |
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| 314 | sigprocmask(SIG_SETMASK, restore, NULL); |
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[0cb6c26] | 315 | |
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[3a84694] | 316 | in.ch = in.uch = owl_global_get_startup_tio(&g)->c_cc[VINTR]; |
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| 317 | owl_process_input_char(in); |
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| 318 | } |
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| 319 | |
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[4f2166b] | 320 | owl_ps_action *owl_select_add_pre_select_action(int (*cb)(owl_ps_action *, void *), void (*destroy)(owl_ps_action *), void *data) |
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| 321 | { |
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| 322 | owl_ps_action *a = owl_malloc(sizeof(owl_ps_action)); |
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| 323 | owl_list *psa_list = owl_global_get_psa_list(&g); |
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| 324 | a->needs_gc = 0; |
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| 325 | a->callback = cb; |
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| 326 | a->destroy = destroy; |
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| 327 | a->data = data; |
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| 328 | owl_list_append_element(psa_list, a); |
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| 329 | return a; |
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| 330 | } |
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| 331 | |
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| 332 | void owl_select_psa_gc(void) |
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| 333 | { |
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| 334 | int i; |
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| 335 | owl_list *psa_list; |
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| 336 | owl_ps_action *a; |
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| 337 | |
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| 338 | psa_list = owl_global_get_psa_list(&g); |
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| 339 | for (i = owl_list_get_size(psa_list) - 1; i >= 0; i--) { |
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| 340 | a = owl_list_get_element(psa_list, i); |
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| 341 | if (a->needs_gc) { |
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| 342 | owl_list_remove_element(psa_list, i); |
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| 343 | if (a->destroy) { |
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| 344 | a->destroy(a); |
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| 345 | } |
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| 346 | owl_free(a); |
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| 347 | } |
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| 348 | } |
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| 349 | } |
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| 350 | |
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| 351 | void owl_select_remove_pre_select_action(owl_ps_action *a) |
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| 352 | { |
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| 353 | a->needs_gc = 1; |
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| 354 | if (!psa_active) |
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| 355 | owl_select_psa_gc(); |
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| 356 | } |
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| 357 | |
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| 358 | int owl_select_do_pre_select_actions(void) |
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| 359 | { |
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| 360 | int i, len, ret; |
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| 361 | owl_list *psa_list; |
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| 362 | |
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| 363 | psa_active = 1; |
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| 364 | ret = 0; |
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| 365 | psa_list = owl_global_get_psa_list(&g); |
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| 366 | len = owl_list_get_size(psa_list); |
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| 367 | for (i = 0; i < len; i++) { |
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| 368 | owl_ps_action *a = owl_list_get_element(psa_list, i); |
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| 369 | if (a->callback != NULL && a->callback(a, a->data)) { |
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| 370 | ret = 1; |
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| 371 | } |
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| 372 | } |
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| 373 | psa_active = 0; |
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| 374 | owl_select_psa_gc(); |
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| 375 | return ret; |
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| 376 | } |
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| 377 | |
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[c79a047] | 378 | void owl_select(void) |
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[9c7a701] | 379 | { |
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[df0138f] | 380 | int i, max_fd, max_fd2, aim_done, ret; |
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[9c7a701] | 381 | fd_set r; |
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[df0138f] | 382 | fd_set w; |
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[9c7a701] | 383 | fd_set e; |
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[2f69081] | 384 | fd_set aim_rfds, aim_wfds; |
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[3a84694] | 385 | struct timespec timeout; |
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[0cb6c26] | 386 | sigset_t mask; |
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[9c7a701] | 387 | |
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[b7bb454] | 388 | owl_select_process_timers(&timeout); |
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[9c7a701] | 389 | |
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[40bda84] | 390 | owl_select_mask_signals(&mask); |
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| 391 | |
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[3a84694] | 392 | if(owl_global_is_interrupted(&g)) { |
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[40bda84] | 393 | owl_select_handle_intr(&mask); |
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[3a84694] | 394 | return; |
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| 395 | } |
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[df0138f] | 396 | FD_ZERO(&r); |
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| 397 | FD_ZERO(&w); |
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| 398 | FD_ZERO(&e); |
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[3a84694] | 399 | |
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[6fc40a7] | 400 | max_fd = owl_select_prepare_io_dispatch_fd_sets(&r, &w, &e); |
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[9c7a701] | 401 | |
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| 402 | /* AIM HACK: |
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| 403 | * |
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| 404 | * The problem - I'm not sure where to hook into the owl/faim |
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| 405 | * interface to keep track of when the AIM socket(s) open and |
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| 406 | * close. In particular, the bosconn thing throws me off. So, |
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| 407 | * rather than register particular dispatchers for AIM, I look up |
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| 408 | * the relevant FDs and add them to select's watch lists, then |
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| 409 | * check for them individually before moving on to the other |
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| 410 | * dispatchers. --asedeno |
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| 411 | */ |
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| 412 | aim_done = 1; |
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[2f69081] | 413 | FD_ZERO(&aim_rfds); |
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| 414 | FD_ZERO(&aim_wfds); |
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[9c7a701] | 415 | if (owl_global_is_doaimevents(&g)) { |
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| 416 | aim_done = 0; |
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[df0138f] | 417 | max_fd2 = owl_select_aim_hack(&aim_rfds, &aim_wfds); |
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| 418 | if (max_fd < max_fd2) max_fd = max_fd2; |
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| 419 | for(i = 0; i <= max_fd2; i++) { |
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[2f69081] | 420 | if (FD_ISSET(i, &aim_rfds)) { |
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[9c7a701] | 421 | FD_SET(i, &r); |
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| 422 | FD_SET(i, &e); |
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| 423 | } |
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[df0138f] | 424 | if (FD_ISSET(i, &aim_wfds)) { |
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| 425 | FD_SET(i, &w); |
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| 426 | FD_SET(i, &e); |
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| 427 | } |
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[9c7a701] | 428 | } |
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| 429 | } |
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| 430 | /* END AIM HACK */ |
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[2f69081] | 431 | |
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[4f2166b] | 432 | if (owl_select_do_pre_select_actions()) { |
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| 433 | timeout.tv_sec = 0; |
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| 434 | timeout.tv_nsec = 0; |
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| 435 | } |
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| 436 | |
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[df0138f] | 437 | ret = pselect(max_fd+1, &r, &w, &e, &timeout, &mask); |
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[3a84694] | 438 | |
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| 439 | if(ret < 0 && errno == EINTR) { |
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| 440 | if(owl_global_is_interrupted(&g)) { |
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[40bda84] | 441 | owl_select_handle_intr(NULL); |
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[3a84694] | 442 | } |
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[40bda84] | 443 | sigprocmask(SIG_SETMASK, &mask, NULL); |
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[3a84694] | 444 | return; |
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| 445 | } |
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| 446 | |
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[40bda84] | 447 | sigprocmask(SIG_SETMASK, &mask, NULL); |
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[3a84694] | 448 | |
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| 449 | if(ret > 0) { |
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[7ca5d3e] | 450 | /* AIM HACK: process all AIM events at once. */ |
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| 451 | for(i = 0; !aim_done && i <= max_fd; i++) { |
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[df0138f] | 452 | if (FD_ISSET(i, &r) || FD_ISSET(i, &w) || FD_ISSET(i, &e)) { |
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[7ca5d3e] | 453 | if (FD_ISSET(i, &aim_rfds) || FD_ISSET(i, &aim_wfds)) { |
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[9c7a701] | 454 | owl_process_aim(); |
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| 455 | aim_done = 1; |
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| 456 | } |
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| 457 | } |
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| 458 | } |
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[df0138f] | 459 | owl_select_io_dispatch(&r, &w, &e, max_fd); |
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[9c7a701] | 460 | } |
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| 461 | } |
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