[pypy-svn] r34634 - pypy/dist/pypy/translator/c/src

[pedronis at codespeak.net]

Author: pedronis
Date: Wed Nov 15 16:50:09 2006
New Revision: 34634

Added:
   pypy/dist/pypy/translator/c/src/instrument.h   (contents, props changed)
Log:
oops, forgot to add this one



Added: pypy/dist/pypy/translator/c/src/instrument.h
==============================================================================
--- (empty file)
+++ pypy/dist/pypy/translator/c/src/instrument.h	Wed Nov 15 16:50:09 2006
@@ -0,0 +1,59 @@
+
+void instrument_setup();
+
+#ifdef INSTRUMENT
+
+void instrument_count(long);
+
+#ifndef PYPY_NOT_MAIN_FILE
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+
+typedef unsigned long instrument_count_t;
+
+instrument_count_t *_instrument_counters;
+
+void instrument_setup() {
+	char *fname = getenv("_INSTRUMENT_COUNTERS");
+	if (fname) {
+		int fd;
+		void *buf;
+		size_t sz = sizeof(instrument_count_t)*INSTRUMENT_NCOUNTER;
+		fd = open(fname, O_CREAT|O_TRUNC|O_RDWR, 0744);
+		lseek(fd, sz-1, SEEK_SET);
+		write(fd, "", 1);
+		buf = mmap(NULL, sz, PROT_WRITE|PROT_READ, MAP_SHARED,
+		   fd, 0);
+		if (buf == MAP_FAILED) {
+			fprintf(stderr, "mapping instrument counters file failed\n");
+			abort();
+		}
+		_instrument_counters = (instrument_count_t *)buf;
+	}
+}
+
+void instrument_count(long label) {
+	if(_instrument_counters) {
+		_instrument_counters[label]++;
+	}
+}
+#endif
+
+
+#define INSTRUMENT_COUNT(label) instrument_count(label)
+
+#else
+
+#ifndef PYPY_NOT_MAIN_FILE
+void instrument_setup() {
+}
+#endif
+
+#define INSTRUMENT_COUNT
+
+#endif