Added time() and clock()

CMakeLists.txt

@@ -27,7 +27,7 @@ set(CMAKE_EXE_LINKER_FLAGS
 
 set(malloc_impl dlmalloc)
 set(photon_libc_sources "")
-set(generic_dirs string stdio stdlib errno internal ctype wchar)
+set(generic_dirs string stdio stdlib errno internal ctype wchar time)
 
 message(STATUS "Memory allocator: ${malloc_impl}")
 

photon/libc/include/time.h

@@ -1,11 +1,35 @@
 #ifndef TIME_H_
 #define TIME_H_
 
+#include <stddef.h>
 #include <sys/types.h>
+#include <sys/_time.h>
+
+#define CLOCKS_PER_SEC __SYS_CLOCKS_PER_SEC
 
 struct timespec {
     time_t tv_sec;
     long tv_nsec;
 };
 
+struct tm {
+    int tm_sec;
+    int tm_min;
+    int tm_hour;
+    int tm_mday;
+    int tm_mon;
+    int tm_year;
+    int tm_wday;
+    int tm_yday;
+    int tm_isdst;
+};
+
+extern clock_t clock(void);
+extern time_t time(time_t *p);
+
+extern struct tm *gmtime(const time_t *timer);
+extern struct tm *localtime(const time_t *timer);
+extern time_t mktime(struct tm *timeptr);
+extern size_t strftime(char *str, size_t max, const char *format, const struct tm *timeptr);
+
 #endif

photon/libc/sys/horizon/__time.h

@@ -0,0 +1,9 @@
+#ifndef SYS_HORIZON___TIME_H_
+#define SYS_HORIZON___TIME_H_
+
+#include <time.h>
+
+extern clock_t __sys_clock(void);
+extern time_t __sys_time(void);
+
+#endif

photon/libc/sys/horizon/sys/_time.h

@@ -0,0 +1,6 @@
+#ifndef SYS_HORIZON___TIME_H_
+#define SYS_HORIZON___TIME_H_
+
+#define __SYS_CLOCKS_PER_SEC 1000000000
+
+#endif

photon/libc/sys/horizon/time.c

@@ -0,0 +1,19 @@
+#include <magenta/types.h>
+#include <magenta/clock.h>
+#include <time.h>
+
+clock_t __sys_clock(void)
+{
+    mx_time_val_t v;
+    mx_clock_get_time(MX_CLOCK_MONOTONIC, &v);
+
+    return (v.sec * CLOCKS_PER_SEC) + v.nsec;
+}
+
+time_t __sys_time(void)
+{
+    mx_time_val_t v;
+    mx_clock_get_time(MX_CLOCK_REALTIME, &v);
+
+    return v.sec;
+}

photon/libc/time/clock.c

@@ -0,0 +1,7 @@
+#include <time.h>
+#include <__time.h>
+
+clock_t clock(void)
+{
+    return __sys_clock();
+}

photon/libc/time/time.c

@@ -0,0 +1,12 @@
+#include <time.h>
+#include <__time.h>
+
+time_t time(time_t *p)
+{
+    time_t out = __sys_time();
+    if (p) {
+        *p = out;
+    }
+
+    return out;
+}