user: implement mlibc as the libc, finally.

It's finally done.. Signed-off-by: kaguya <vpshinomiya@protonmail.com>
2026-05-02 03:31:49 -04:00
parent 2fa39ad85a
commit 9a9b91c940
2387 changed files with 152741 additions and 315 deletions
@@ -0,0 +1,43 @@
+
+#include <errno.h>
+#include <poll.h>
+
+#include <bits/ensure.h>
+#include <mlibc/debug.hpp>
+#include <mlibc/posix-sysdeps.hpp>
+
+int poll(struct pollfd *fds, nfds_t count, int timeout) {
+	int num_events;
+	MLIBC_CHECK_OR_ENOSYS(mlibc::sys_poll, -1);
+	if(int e = mlibc::sys_poll(fds, count, timeout, &num_events); e) {
+		errno = e;
+		return -1;
+	}
+	return num_events;
+}
+
+#if __MLIBC_LINUX_OPTION
+
+#include <mlibc/linux-sysdeps.hpp>
+
+int ppoll(struct pollfd *fds, nfds_t nfds, const struct timespec *timeout_ts, const sigset_t *sigmask) {
+	if (mlibc::sys_ppoll) {
+		int num_events;
+		if(int e = mlibc::sys_ppoll(fds, nfds, timeout_ts, sigmask, &num_events); e) {
+			errno = e;
+			return -1;
+		}
+		return num_events;
+	}
+
+	sigset_t origmask;
+	int timeout = (timeout_ts == nullptr) ? -1 : (timeout_ts->tv_sec * 1000 + timeout_ts->tv_nsec / 1000000);
+
+	sigprocmask(SIG_SETMASK, sigmask, &origmask);
+	int ready = poll(fds, nfds, timeout);
+	sigprocmask(SIG_SETMASK, &origmask, nullptr);
+
+	return ready;
+}
+#endif // __MLIBC_LINUX_OPTION
+