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authorAli Saidi <saidi@eecs.umich.edu>2008-10-01 16:27:52 -0400
committerAli Saidi <saidi@eecs.umich.edu>2008-10-01 16:27:52 -0400
commit4ba87133bd0840b1d718de5a605112ca634f66c7 (patch)
treeb663746bb567eafe11c1b7c57c1dbce0f64cd53f /util/term/term.c
parent7bf6a219db91406df91d4e9323b47e6d70ed73fb (diff)
downloadgem5-4ba87133bd0840b1d718de5a605112ca634f66c7.tar.xz
Make m5term use select() so OS X is happy.
Diffstat (limited to 'util/term/term.c')
-rw-r--r--util/term/term.c56
1 files changed, 36 insertions, 20 deletions
diff --git a/util/term/term.c b/util/term/term.c
index aed3bb8fc..8478b74c9 100644
--- a/util/term/term.c
+++ b/util/term/term.c
@@ -139,54 +139,64 @@ remote_connect(char *host, char *port, struct addrinfo hints)
/*
* readwrite()
- * Loop that polls on the network file descriptor and stdin.
+ * Loop that selects on the network file descriptor and stdin.
+ * Changed from poll() by Ali Saidi to make work on Mac OS X >= 10.4
*/
void
readwrite(int nfd)
{
- struct pollfd pfd[2];
+ fd_set read_fds;
char buf[BUFSIZ];
- int wfd = fileno(stdin), n, ret;
+ int wfd = fileno(stdin), n, ret, max_fd;
int lfd = fileno(stdout);
int escape = 0;
+ struct timeval timeout;
- /* Setup Network FD */
- pfd[0].fd = nfd;
- pfd[0].events = POLLIN;
+ if (nfd == -1)
+ return;
- /* Setup STDIN FD */
- pfd[1].fd = wfd;
- pfd[1].events = POLLIN;
+ FD_ZERO(&read_fds);
- while (pfd[0].fd != -1) {
- if ((n = poll(pfd, 2, -1)) < 0) {
+ FD_SET(wfd, &read_fds);
+ FD_SET(nfd, &read_fds);
+ max_fd = nfd + 1;
+
+ timeout.tv_sec = 1;
+ timeout.tv_usec = 0;
+
+ while (1) {
+ n = select(max_fd, &read_fds, NULL, NULL, &timeout);
+ if (n < 0) {
close(nfd);
- err(1, "Polling Error");
+ perror("Select Error:");
}
- if (n == 0)
+ if (n == 0) {
+ if (read(nfd, buf, 0) < 0)
+ return;
+ goto setup_select;
+ }
+
+ if (read(nfd, buf, 0) < 0)
return;
- if (pfd[0].revents & POLLIN) {
+ if (FD_ISSET(nfd, &read_fds)) {
if ((n = read(nfd, buf, sizeof(buf))) < 0)
return;
else if (n == 0) {
shutdown(nfd, SHUT_RD);
- pfd[0].fd = -1;
- pfd[0].events = 0;
+ return;
} else {
if ((ret = atomicio(write, lfd, buf, n)) != n)
return;
}
}
- if (pfd[1].revents & POLLIN) {
+ if (FD_ISSET(wfd, &read_fds)) {
if ((n = read(wfd, buf, sizeof(buf))) < 0)
return;
else if (n == 0) {
shutdown(nfd, SHUT_WR);
- pfd[1].fd = -1;
- pfd[1].events = 0;
} else {
if (escape) {
char buf2[] = "~";
@@ -208,7 +218,13 @@ readwrite(int nfd)
return;
}
}
- }
+setup_select:
+ FD_ZERO(&read_fds);
+ FD_SET(wfd, &read_fds);
+ FD_SET(nfd, &read_fds);
+ timeout.tv_sec = 1;
+ timeout.tv_usec = 0;
+ } // while
}
void