20060303

1 files changed, 80 insertions, 0 deletions

diff --git a/utils/kl/Posix.c b/utils/kl/Posix.c
new file mode 100644
index 00000000..7c3a661f
--- /dev/null
+++ b/utils/kl/Posix.c
@@ -0,0 +1,80 @@
+#include	"l.h"
+#include <sys/types.h>
+#include <sys/times.h>
+#undef getwd
+#include <unistd.h>	/* For sysconf() and _SC_CLK_TCK */
+
+/*
+ * fake malloc
+ */
+void*
+malloc(size_t n)
+{
+	void *p;
+
+	while(n & 7)
+		n++;
+	while(nhunk < n)
+		gethunk();
+	p = hunk;
+	nhunk -= n;
+	hunk += n;
+	return p;
+}
+
+void
+free(void *p)
+{
+	USED(p);
+}
+
+void*
+calloc(size_t m, size_t n)
+{
+	void *p;
+
+	n *= m;
+	p = malloc(n);
+	memset(p, 0, n);
+	return p;
+}
+
+void*
+realloc(void *p, size_t n)
+{
+	fprint(2, "realloc called\n", p, n);
+	abort();
+	return 0;
+}
+
+void*
+mysbrk(ulong size)
+{
+	return (void*)sbrk(size);
+}
+
+double
+cputime(void)
+{
+
+	struct tms tmbuf;
+	double	ret_val;
+
+	/*
+	 * times() only fials if &tmbuf is invalid.
+	 */
+	(void)times(&tmbuf);
+	/*
+	 * Return the total time (in system clock ticks)
+	 * spent in user code and system
+	 * calls by both the calling process and its children.
+	 */
+	ret_val = (double)(tmbuf.tms_utime + tmbuf.tms_stime +
+			tmbuf.tms_cutime + tmbuf.tms_cstime);
+	/*
+	 * Convert to seconds.
+	 */
+	ret_val *= sysconf(_SC_CLK_TCK);
+	return ret_val;
+	
+}