Initial revision

src/libthread/debug.c

@@ -0,0 +1,48 @@
+#include "threadimpl.h"
+
+int _threaddebuglevel;
+
+void
+__threaddebug(ulong flag, char *fmt, ...)
+{
+	char buf[128];
+	va_list arg;
+	Fmt f;
+	Proc *p;
+
+	if((_threaddebuglevel&flag) == 0)
+		return;
+
+	fmtfdinit(&f, 2, buf, sizeof buf);
+
+	p = _threadgetproc();
+	if(p==nil)
+		fmtprint(&f, "noproc ");
+	else if(p->thread)
+		fmtprint(&f, "%d.%d ", p->pid, p->thread->id);
+	else
+		fmtprint(&f, "%d._ ", p->pid);
+
+	va_start(arg, fmt);
+	fmtvprint(&f, fmt, arg);
+	va_end(arg);
+	fmtprint(&f, "\n");
+	fmtfdflush(&f);
+}
+
+void
+_threadassert(char *s)
+{
+	char buf[256];
+	int n;
+	Proc *p;
+
+	p = _threadgetproc();
+	if(p && p->thread)
+		n = sprint(buf, "%d.%d ", p->pid, p->thread->id);
+	else
+		n = 0;
+	snprint(buf+n, sizeof(buf)-n, "%s: assertion failed\n", s);
+	write(2, buf, strlen(buf));
+	abort();
+}