Add sleep()

2 files changed, 10 insertions, 0 deletions

diff --git a/builtins/functions.c b/builtins/functions.c
index 5b019106..3c01f678 100644
--- a/builtins/functions.c
+++ b/builtins/functions.c
@@ -7,6 +7,7 @@
 #include <stdlib.h>
 #include <sys/param.h>
 #include <sys/random.h>
+#include <time.h>
 #include <uninorm.h>
 #include <unistd.h>
 
@@ -370,4 +371,12 @@ public bool pop_flag(char **argv, int *i, const char *flag, Text_t *result)
     }
 }
 
+public void sleep_num(double seconds)
+{
+    struct timespec ts;
+    ts.tv_sec = (time_t)seconds;
+    ts.tv_nsec = (long)((seconds - (double)ts.tv_sec) * 1e9);
+    nanosleep(&ts, NULL);
+}
+
 // vim: ts=4 sw=0 et cino=L2,l1,(0,W4,m1,\:0
diff --git a/builtins/functions.h b/builtins/functions.h
index 550676b4..b79c596a 100644
--- a/builtins/functions.h
+++ b/builtins/functions.h
@@ -33,5 +33,6 @@ int generic_print(const void *obj, bool colorize, const TypeInfo *type);
 Closure_t spawn(Closure_t fn);
 bool pop_flag(char **argv, int *i, const char *flag, Text_t *result);
 void print_stack_trace(FILE *out, int start, int stop);
+void sleep_num(double seconds);
 
 // vim: ts=4 sw=0 et cino=L2,l1,(0,W4,m1,\:0