1 files changed, 40 insertions, 0 deletions
diff --git a/tme/tme.c b/tme/tme.c
new file mode 100755
index 0000000..e86acbe
--- /dev/null
+++ b/tme/tme.c
@@ -0,0 +1,40 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <unistd.h>
+#include <sys/wait.h>
+#include <time.h>
+
+
+int main(int argc, char *argv[]){
+
+	if(argc < 2){
+		printf("Usage: tme [program]\n");
+		return 1;
+	}
+
+	struct timespec t_start, t_end;
+	pid_t cpid = fork();
+	clock_gettime(CLOCK_MONOTONIC, &t_start);
+	if(cpid == 0){
+		int r = execvp(argv[1], argv+1);
+		//r = execv(argv[1], argv+1);
+		if(r == -1){
+			perror("tme");
+		}
+		return 2;
+	}
+
+	int wstatus;
+	waitpid(cpid, &wstatus, 2); // use 2 instead of 1 because WNOHANG is 1
+	clock_gettime(CLOCK_MONOTONIC, &t_end);
+	uint64_t diff = (t_end.tv_sec*1000000000 + t_end.tv_nsec) - (t_start.tv_sec*1000000000 + t_start.tv_nsec);
+	double timing = diff/1000000000.0;
+	
+	printf("time: %lfs\n", timing);
+	if(WIFEXITED(wstatus)){
+		printf("'%s' exited with status %d\n", argv[1], WEXITSTATUS(wstatus));
+	}
+
+	return 0;
+}