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Make m5term use select() so OS X is happy.

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This commit is contained in:
Ali Saidi 2008-10-01 16:27:52 -04:00
parent 7bf6a219db
commit 4ba87133bd
1 changed files with 36 additions and 20 deletions
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56
util/term/term.c
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@ -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