lib: Add mlibc

Signed-off-by: Ian Moffett <ian@osmora.org>

1 files changed, 68 insertions, 0 deletions

diff --git a/lib/mlibc/options/posix/include/sys/time.h b/lib/mlibc/options/posix/include/sys/time.h
new file mode 100644
index 0000000..838d7cc
--- /dev/null
+++ b/lib/mlibc/options/posix/include/sys/time.h
@@ -0,0 +1,68 @@
+#ifndef _SYS_TIME_H
+#define _SYS_TIME_H
+
+#include <abi-bits/time.h>
+#include <abi-bits/signal.h>
+#include <abi-bits/clockid_t.h>
+#include <bits/ansi/time_t.h>
+#include <abi-bits/suseconds_t.h>
+#include <bits/posix/timer_t.h>
+#include <bits/posix/timeval.h>
+
+#include <sys/select.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct timezone {
+	int tz_minuteswest;
+	int tz_dsttime;
+};
+
+#ifndef __MLIBC_ABI_ONLY
+
+// TODO: this function is [OB]. disable it by default and add a macro to enable it
+int gettimeofday(struct timeval *__restrict result, void *__restrict unused);
+int settimeofday(const struct timeval *result, const struct timezone *zone);
+
+void timeradd(const struct timeval *a, const struct timeval *b, struct timeval *res);
+void timersub(const struct timeval *a, const struct timeval *b, struct timeval *res);
+void timerclear(struct timeval *tvp);
+int timerisset(struct timeval *tvp);
+
+#endif /* !__MLIBC_ABI_ONLY */
+
+// timercmp taken from musl
+#define timercmp(s,t,op) ((s)->tv_sec == (t)->tv_sec ? \
+	(s)->tv_usec op (t)->tv_usec : (s)->tv_sec op (t)->tv_sec)
+
+#ifndef __MLIBC_ABI_ONLY
+
+int getitimer(int which, struct itimerval *curr_value);
+int setitimer(int which, const struct itimerval *new_value,
+	struct itimerval *old_value);
+
+int timer_create(clockid_t clockid, struct sigevent *__restrict sevp, timer_t *__restrict timerid);
+int timer_settime(timer_t timerid, int flags, const struct itimerspec *__restrict new_value,
+	struct itimerspec *__restrict old_value);
+int timer_gettime(timer_t timerid, struct itimerspec *curr_value);
+int timer_delete(timer_t timerid);
+
+#endif /* !__MLIBC_ABI_ONLY */
+
+// The following 2 macros are taken from musl
+#define TIMEVAL_TO_TIMESPEC(tv, ts) ( \
+	(ts)->tv_sec = (tv)->tv_sec, \
+	(ts)->tv_nsec = (tv)->tv_usec * 1000, \
+	(void)0 )
+#define TIMESPEC_TO_TIMEVAL(tv, ts) ( \
+	(tv)->tv_sec = (ts)->tv_sec, \
+	(tv)->tv_usec = (ts)->tv_nsec / 1000, \
+	(void)0 )
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // _SYS_TIME_H