the bulk of the compiler

src/script_opt/CPP/Util.cc

@@ -0,0 +1,67 @@
+// See the file "COPYING" in the main distribution directory for copyright.
+
+#include <errno.h>
+#include <unistd.h>
+#include <sys/file.h>
+
+#include "zeek/script_opt/CPP/Util.h"
+
+namespace zeek::detail {
+
+std::string Fmt(double d)
+	{
+	// Special hack to preserve the signed-ness of the magic -0.0.
+	if ( d == 0.0 && signbit(d) )
+		return "-0.0";
+
+	// Unfortunately, to_string(double) is hardwired to use %f with
+	// default of 6 digits precision.
+	char buf[8192];
+	snprintf(buf, sizeof buf, "%.17g", d);
+	return buf;
+	}
+
+std::string scope_prefix(const std::string& scope)
+	{
+	return std::string("zeek::detail::CPP_") + scope + "::";
+	}
+
+std::string scope_prefix(int scope)
+	{
+	return scope_prefix(std::to_string(scope));
+	}
+
+bool is_CPP_compilable(const ProfileFunc* pf)
+	{
+	if ( pf->NumWhenStmts() > 0 )
+		return false;
+
+	if ( pf->TypeSwitches().size() > 0 )
+		return false;
+
+	return true;
+	}
+
+void lock_file(const std::string& fname, FILE* f)
+	{
+	if ( flock(fileno(f), LOCK_EX) < 0 )
+		{
+		char buf[256];
+		util::zeek_strerror_r(errno, buf, sizeof(buf));
+		reporter->Error("flock failed on %s: %s", fname.c_str(), buf);
+		exit(1);
+		}
+	}
+
+void unlock_file(const std::string& fname, FILE* f)
+	{
+	if ( flock(fileno(f), LOCK_UN) < 0 )
+		{
+		char buf[256];
+		util::zeek_strerror_r(errno, buf, sizeof(buf));
+		reporter->Error("un-flock failed on %s: %s", fname.c_str(), buf);
+		exit(1);
+		}
+	}
+
+} // zeek::detail