src/fdevent_solaris_port.c

   1 #include "first.h"
   2
   3 #include "fdevent_impl.h"
   4 #include "fdevent.h"
   5 #include "buffer.h"
   6 #include "log.h"
   7
   8 #include <unistd.h>
   9 #include <stdlib.h>
  10 #include <string.h>
  11 #include <errno.h>
  12 #include <fcntl.h>
  13
  14 #ifdef FDEVENT_USE_SOLARIS_PORT
  15
  16 #include <sys/poll.h>
  17
  18 static int fdevent_solaris_port_event_del(fdevents *ev, fdnode *fdn) {
  19     return port_dissociate(ev->port_fd, PORT_SOURCE_FD, fdn->fd);
  20 }
  21
  22 static int fdevent_solaris_port_event_set(fdevents *ev, fdnode *fdn, int events) {
  23     int fd = fdn->fde_ndx = fdn->fd;
  24     intptr_t ud = events & (POLLIN|POLLOUT);
  25     return port_associate(ev->port_fd,PORT_SOURCE_FD,fd,(int)ud,(void*)ud);
  26 }
  27
  28 __attribute_cold__
  29 static void fdevent_solaris_port_free(fdevents *ev) {
  30         close(ev->port_fd);
  31         free(ev->port_events);
  32 }
  33
  34 /* if there is any error it will return the return values of port_getn, otherwise it will return number of events **/
  35 static int fdevent_solaris_port_poll(fdevents *ev, int timeout_ms) {
  36         const int pfd = ev->port_fd;
  37         int ret;
  38         unsigned int available_events, wait_for_events = 0;
  39
  40         struct timespec  timeout;
  41
  42         timeout.tv_sec  = timeout_ms/1000L;
  43         timeout.tv_nsec = (timeout_ms % 1000L) * 1000000L;
  44
  45         /* get the number of file descriptors with events */
  46         if ((ret = port_getn(pfd, ev->port_events, 0, &wait_for_events, &timeout)) < 0) return ret;
  47
  48         /* wait for at least one event */
  49         if (0 == wait_for_events) wait_for_events = 1;
  50
  51         available_events = wait_for_events;
  52
  53         /* get the events of the file descriptors */
  54         if ((ret = port_getn(pfd, ev->port_events, ev->maxfds, &available_events, &timeout)) < 0) {
  55                 /* if errno == ETIME and available_event == wait_for_events we didn't get any events */
  56                 /* for other errors we didn't get any events either */
  57                 if (!(errno == ETIME && wait_for_events != available_events)) return ret;
  58         }
  59
  60     for (int i = 0; i < (int)available_events; ++i) {
  61         int fd = (int)ev->port_events[i].portev_object;
  62         fdnode * const fdn = ev->fdarray[fd];
  63         const intptr_t ud = (intptr_t)ev->port_events[i].portev_user;
  64         int revents = ev->port_events[i].portev_events;
  65         if (0 == ((uintptr_t)fdn & 0x3)) {
  66             if (port_associate(pfd,PORT_SOURCE_FD,fd,(int)ud,(void*)ud) < 0) {
  67                 log_error_write(ev->srv, __FILE__, __LINE__, "SS",
  68                                 "port_associate failed: ", strerror(errno));
  69             }
  70             (*fdn->handler)(ev->srv, fdn->ctx, revents);
  71         }
  72         else {
  73             fdn->fde_ndx = -1;
  74         }
  75     }
  76     return available_events;
  77 }
  78
  79 __attribute_cold__
  80 int fdevent_solaris_port_init(fdevents *ev) {
  81         force_assert(POLLIN    == FDEVENT_IN);
  82         force_assert(POLLPRI   == FDEVENT_PRI);
  83         force_assert(POLLOUT   == FDEVENT_OUT);
  84         force_assert(POLLERR   == FDEVENT_ERR);
  85         force_assert(POLLHUP   == FDEVENT_HUP);
  86         force_assert(POLLNVAL  == FDEVENT_NVAL);
  87         force_assert(POLLRDHUP == FDEVENT_RDHUP);
  88
  89         ev->type        = FDEVENT_HANDLER_SOLARIS_PORT;
  90         ev->event_set   = fdevent_solaris_port_event_set;
  91         ev->event_del   = fdevent_solaris_port_event_del;
  92         ev->poll        = fdevent_solaris_port_poll;
  93         ev->free        = fdevent_solaris_port_free;
  94         ev->port_events = malloc(ev->maxfds * sizeof(*ev->port_events));
  95         force_assert(NULL != ev->port_events);
  96
  97         if ((ev->port_fd = port_create()) < 0) return -1;
  98
  99         return 0;
 100 }
 101
 102 #endif