Initialize

sunos.c

@@ -0,0 +1,91 @@
+#include <stdint.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <errno.h>
+#include <poll.h>
+#include <port.h>
+#include "dat.h"
+
+static int portfd;
+
+int
+sockinit(void)
+{
+    portfd = port_create();
+    if (portfd == -1) {
+        twarn("port_create");
+        return -1;
+    }
+    return 0;
+}
+
+
+int
+sockwant(Socket *s, int rw)
+{
+    int events = 0;
+
+    if (rw) {
+        switch (rw) {
+        case 'r':
+            events |= POLLIN;
+            break;
+        case 'w':
+            events |= POLLOUT;
+            break;
+        }
+    }
+
+    events |= POLLPRI;
+
+    if (!s->added && !rw) {
+        return 0;
+    } else if (!s->added && rw) {
+        s->added = 1;
+        return port_associate(portfd, PORT_SOURCE_FD, s->fd, events, (void *)s);
+    } else if (!rw) {
+        return port_dissociate(portfd, PORT_SOURCE_FD, s->fd);
+    } else {
+        port_dissociate(portfd, PORT_SOURCE_FD, s->fd);
+        return port_associate(portfd, PORT_SOURCE_FD, s->fd, events, (void *)s);
+    }
+}
+
+
+int
+socknext(Socket **s, int64 timeout)
+{
+    int r;
+    uint_t n = 1;
+    struct port_event pe;
+    struct timespec ts;
+
+    ts.tv_sec = timeout / 1000000000;
+    ts.tv_nsec = timeout % 1000000000;
+    r = port_getn(portfd, &pe, 1, &n, &ts);
+    if (r == -1 && errno != ETIME && errno != EINTR) {
+        twarn("port_getn");
+        return -1;
+    }
+
+    if (r == 0) {
+        *s = pe.portev_user;
+        if (pe.portev_events & POLLHUP) {
+            return 'h';
+        } else if (pe.portev_events & POLLIN) {
+            if (sockwant(*s, 'r') == -1) {
+                return -1;
+            }
+            return 'r';
+        } else if (pe.portev_events & POLLOUT) {
+            if (sockwant(*s, 'w') == -1) {
+                return -1;
+            }
+            return 'w';
+        }
+    }
+
+    return 0;
+}