Libraries: Move to Userland/Libraries/

1 files changed, 135 insertions, 0 deletions

diff --git a/Userland/Libraries/LibC/sys/time.h b/Userland/Libraries/LibC/sys/time.h
new file mode 100644
index 0000000000..11faa3bdd4
--- /dev/null
+++ b/Userland/Libraries/LibC/sys/time.h
@@ -0,0 +1,135 @@
+/*
+ * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#pragma once
+
+#include <sys/cdefs.h>
+#include <sys/types.h>
+#include <time.h>
+
+__BEGIN_DECLS
+
+struct timeval {
+    time_t tv_sec;
+    suseconds_t tv_usec;
+};
+
+struct timezone {
+    int tz_minuteswest;
+    int tz_dsttime;
+};
+
+int adjtime(const struct timeval* delta, struct timeval* old_delta);
+int gettimeofday(struct timeval* __restrict__, void* __restrict__) __attribute__((nonnull(1)));
+int settimeofday(struct timeval* __restrict__, void* __restrict__) __attribute__((nonnull(1)));
+
+static inline void timeradd(const struct timeval* a, const struct timeval* b, struct timeval* out)
+{
+    out->tv_sec = a->tv_sec + b->tv_sec;
+    out->tv_usec = a->tv_usec + b->tv_usec;
+    if (out->tv_usec >= 1000 * 1000) {
+        out->tv_sec++;
+        out->tv_usec -= 1000 * 1000;
+    }
+}
+
+static inline void timersub(const struct timeval* a, const struct timeval* b, struct timeval* out)
+{
+    out->tv_sec = a->tv_sec - b->tv_sec;
+    out->tv_usec = a->tv_usec - b->tv_usec;
+    if (out->tv_usec < 0) {
+        out->tv_sec--;
+        out->tv_usec += 1000 * 1000;
+    }
+}
+
+static inline void timerclear(struct timeval* out)
+{
+    out->tv_sec = out->tv_usec = 0;
+}
+
+static inline int timerisset(const struct timeval* tv)
+{
+    return tv->tv_sec || tv->tv_usec;
+}
+
+#define timeradd timeradd
+#define timersub timersub
+#define timerclear timerclear
+#define timerisset timerisset
+#define timercmp(tvp, uvp, cmp) \
+    (((tvp)->tv_sec == (uvp)->tv_sec) ? ((tvp)->tv_usec cmp(uvp)->tv_usec) : ((tvp)->tv_sec cmp(uvp)->tv_sec))
+
+static inline void timespecadd(const struct timespec* a, const struct timespec* b, struct timespec* out)
+{
+    out->tv_sec = a->tv_sec + b->tv_sec;
+    out->tv_nsec = a->tv_nsec + b->tv_nsec;
+    if (out->tv_nsec >= 1000 * 1000 * 1000) {
+        out->tv_sec++;
+        out->tv_nsec -= 1000 * 1000 * 1000;
+    }
+}
+
+static inline void timespecsub(const struct timespec* a, const struct timespec* b, struct timespec* out)
+{
+    out->tv_sec = a->tv_sec - b->tv_sec;
+    out->tv_nsec = a->tv_nsec - b->tv_nsec;
+    if (out->tv_nsec < 0) {
+        out->tv_sec--;
+        out->tv_nsec += 1000 * 1000 * 1000;
+    }
+}
+
+static inline void timespecclear(struct timespec* out)
+{
+    out->tv_sec = out->tv_nsec = 0;
+}
+
+static inline int timespecisset(const struct timespec* ts)
+{
+    return ts->tv_sec || ts->tv_nsec;
+}
+
+static inline void TIMEVAL_TO_TIMESPEC(const struct timeval* tv, struct timespec* ts)
+{
+    ts->tv_sec = tv->tv_sec;
+    ts->tv_nsec = tv->tv_usec * 1000;
+}
+
+static inline void TIMESPEC_TO_TIMEVAL(struct timeval* tv, const struct timespec* ts)
+{
+    tv->tv_sec = ts->tv_sec;
+    tv->tv_usec = ts->tv_nsec / 1000;
+}
+
+#define timespecadd timespecadd
+#define timespecsub timespecsub
+#define timespecclear timespecclear
+#define timespecisset timespecisset
+#define timespeccmp(ts, us, cmp) \
+    (((ts)->tv_sec == (us)->tv_sec) ? ((ts)->vf_nsec cmp(us)->tv_nsec) : ((ts)->tv_sec cmp(us)->tv_sec))
+
+__END_DECLS