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Improve synchronization

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- Fix bugs in kDos2Errno definition
- malloc() should now be thread safe
- Fix bug in rollup.com header generator
- Fix open(O_APPEND) on the New Technology
- Fix select() on the New Technology and test it
- Work towards refactoring i/o for thread safety
- Socket reads and writes on NT now poll for signals
- Work towards i/o completion ports on the New Technology
- Make read() and write() intermittently check for signals
- Blinkenlights keyboard i/o so much better on NT w/ poll()
- You can now poll() files and sockets at the same time on NT
- Fix bug in appendr() that manifests with dlmalloc footers off
This commit is contained in:
Justine Tunney 2022-04-14 23:39:48 -07:00
parent 233144b19d
commit 933411ba99
266 changed files with 8761 additions and 4344 deletions
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54
tool/build/blinkenlights.c
View file

@ -700,14 +700,12 @@ static void LoadSyms(void) {
static int DrainInput(int fd) {
char buf[32];
struct pollfd fds[1];
if (!IsWindows()) {
for (;;) {
fds[0].fd = fd;
fds[0].events = POLLIN;
if (poll(fds, ARRAYLEN(fds), 0) == -1) return -1;
if (!(fds[0].revents & POLLIN)) break;
if (read(fd, buf, sizeof(buf)) == -1) return -1;
}
for (;;) {
fds[0].fd = fd;
fds[0].events = POLLIN;
if (poll(fds, ARRAYLEN(fds), 0) == -1) return -1;
if (!(fds[0].revents & POLLIN)) break;
if (read(fd, buf, sizeof(buf)) == -1) return -1;
}
return 0;
}
@ -1928,25 +1926,21 @@ static int OnPtyFdPoll(struct pollfd *fds, size_t nfds, int ms) {
ReactiveDraw();
once = true;
}
if (!IsWindows()) {
p2.fd = fds[i].fd;
p2.events = fds[i].events;
switch (poll(&p2, 1, ms)) {
case -1:
re = POLLERR;
++t;
break;
case 0:
break;
case 1:
re = p2.revents;
++t;
break;
default:
unreachable;
}
} else {
re = POLLIN | POLLOUT; /* xxx */
p2.fd = fds[i].fd;
p2.events = fds[i].events;
switch (poll(&p2, 1, ms)) {
case -1:
re = POLLERR;
++t;
break;
case 0:
break;
case 1:
re = p2.revents;
++t;
break;
default:
unreachable;
}
}
}
@ -2608,11 +2602,7 @@ static bool HasPendingKeyboard(void) {
}
static void Sleep(int ms) {
if (IsWindows()) {
usleep(ms * 1000L);
} else {
poll((struct pollfd[]){{ttyin, POLLIN}}, 1, ms);
}
poll((struct pollfd[]){{ttyin, POLLIN}}, 1, ms);
}
static void OnMouseWheelUp(struct Panel *p, int y, int x) {