Author: Armin Rigo <[email protected]>
Branch:
Changeset: r43:c27946a8f461
Date: 2013-05-27 16:14 +0200
http://bitbucket.org/pypy/stmgc/changeset/c27946a8f461/
Log: Add a hack to display the stderr messages in colors depending on
which thread emits them.
diff --git a/c3/fprintcolor.h b/c3/fprintcolor.h
new file mode 100644
--- /dev/null
+++ b/c3/fprintcolor.h
@@ -0,0 +1,37 @@
+#include <stdarg.h>
+
+
+#define fprintf threadcolor_fprintf
+
+
+int threadcolor_fprintf(FILE *stream, const char *format, ...)
+ __attribute__((unused, format (printf, 2, 3), weak));
+
+int threadcolor_fprintf(FILE *stream, const char *format, ...)
+{
+ char buffer[2048];
+ va_list ap;
+ int result;
+ static __thread revision_t color = 0;
+ if (color == 0) {
+ static revision_t nextid = 0;
+ while (1) {
+ color = nextid;
+ if (bool_cas(&nextid, color, color + 1))
+ break;
+ }
+ color = 31 + color % 7;
+ }
+ int size = (int)sprintf(buffer, "\033[%dm", (int)color);
+ assert(size >= 0);
+
+ va_start(ap, format);
+ result = vsnprintf(buffer + size, 2000, format, ap);
+ assert(result >= 0);
+ va_end(ap);
+
+ strcpy(buffer + size + result, "\033[0m");
+ fputs(buffer, stream);
+
+ return result;
+}
diff --git a/c3/stmimpl.h b/c3/stmimpl.h
--- a/c3/stmimpl.h
+++ b/c3/stmimpl.h
@@ -27,6 +27,7 @@
#include "stmgc.h"
#include "atomic_ops.h"
+#include "fprintcolor.h"
#include "lists.h"
#include "dbgmem.h"
#include "nursery.h"
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