From 19cff41eb4261b20374058f16807a229af46f304 Mon Sep 17 00:00:00 2001
From: Clifford Wolf <clifford@clifford.at>
Date: Sat, 23 Aug 2014 15:03:55 +0200
Subject: Changed frontend-api from FILE to std::istream

---
 kernel/register.cc | 23 ++++++++++++++---------
 kernel/register.h  |  8 ++++----
 kernel/yosys.h     |  1 +
 3 files changed, 19 insertions(+), 13 deletions(-)

(limited to 'kernel')

diff --git a/kernel/register.cc b/kernel/register.cc
index 95ed0cbd1..5f4e71d1f 100644
--- a/kernel/register.cc
+++ b/kernel/register.cc
@@ -286,20 +286,20 @@ void Frontend::execute(std::vector<std::string> args, RTLIL::Design *design)
 {
 	log_assert(next_args.empty());
 	do {
-		FILE *f = NULL;
+		std::istream *f = NULL;
 		next_args.clear();
 		auto state = pre_execute();
 		execute(f, std::string(), args, design);
 		post_execute(state);
 		args = next_args;
-		fclose(f);
+		delete f;
 	} while (!args.empty());
 }
 
 FILE *Frontend::current_script_file = NULL;
 std::string Frontend::last_here_document;
 
-void Frontend::extra_args(FILE *&f, std::string &filename, std::vector<std::string> args, size_t argidx)
+void Frontend::extra_args(std::istream *&f, std::string &filename, std::vector<std::string> args, size_t argidx)
 {
 	bool called_with_fp = f != NULL;
 
@@ -338,11 +338,16 @@ void Frontend::extra_args(FILE *&f, std::string &filename, std::vector<std::stri
 					break;
 				last_here_document += buffer;
 			}
-			f = fmemopen((void*)last_here_document.c_str(), last_here_document.size(), "r");
+			f = new std::istringstream(last_here_document);
 		} else {
 			if (filename.substr(0, 2) == "+/")
 				filename = proc_share_dirname() + filename.substr(1);
-			f = fopen(filename.c_str(), "r");
+			std::ifstream *ff = new std::ifstream;
+			ff->open(filename.c_str());
+			if (ff->fail())
+				delete ff;
+			else
+				f = ff;
 		}
 		if (f == NULL)
 			log_cmd_error("Can't open input file `%s' for reading: %s\n", filename.c_str(), strerror(errno));
@@ -367,7 +372,7 @@ void Frontend::extra_args(FILE *&f, std::string &filename, std::vector<std::stri
 	// cmd_log_args(args);
 }
 
-void Frontend::frontend_call(RTLIL::Design *design, FILE *f, std::string filename, std::string command)
+void Frontend::frontend_call(RTLIL::Design *design, std::istream *f, std::string filename, std::string command)
 {
 	std::vector<std::string> args;
 	char *s = strdup(command.c_str());
@@ -377,7 +382,7 @@ void Frontend::frontend_call(RTLIL::Design *design, FILE *f, std::string filenam
 	frontend_call(design, f, filename, args);
 }
 
-void Frontend::frontend_call(RTLIL::Design *design, FILE *f, std::string filename, std::vector<std::string> args)
+void Frontend::frontend_call(RTLIL::Design *design, std::istream *f, std::string filename, std::vector<std::string> args)
 {
 	if (args.size() == 0)
 		return;
@@ -389,9 +394,9 @@ void Frontend::frontend_call(RTLIL::Design *design, FILE *f, std::string filenam
 		frontend_register[args[0]]->execute(f, filename, args, design);
 		frontend_register[args[0]]->post_execute(state);
 	} else if (filename == "-") {
-		FILE *f_stdin = stdin; // workaround for OpenBSD 'stdin' implementation
+		std::istream *f_cin = &std::cin;
 		auto state = frontend_register[args[0]]->pre_execute();
-		frontend_register[args[0]]->execute(f_stdin, "<stdin>", args, design);
+		frontend_register[args[0]]->execute(f_cin, "<stdin>", args, design);
 		frontend_register[args[0]]->post_execute(state);
 	} else {
 		if (!filename.empty())
diff --git a/kernel/register.h b/kernel/register.h
index f2c6ad29e..a49675ed2 100644
--- a/kernel/register.h
+++ b/kernel/register.h
@@ -74,13 +74,13 @@ struct Frontend : Pass
 	virtual void run_register();
 	virtual ~Frontend();
 	virtual void execute(std::vector<std::string> args, RTLIL::Design *design) OVERRIDE FINAL;
-	virtual void execute(FILE *&f, std::string filename, std::vector<std::string> args, RTLIL::Design *design) = 0;
+	virtual void execute(std::istream *&f, std::string filename, std::vector<std::string> args, RTLIL::Design *design) = 0;
 
 	static std::vector<std::string> next_args;
-	void extra_args(FILE *&f, std::string &filename, std::vector<std::string> args, size_t argidx);
+	void extra_args(std::istream *&f, std::string &filename, std::vector<std::string> args, size_t argidx);
 
-	static void frontend_call(RTLIL::Design *design, FILE *f, std::string filename, std::string command);
-	static void frontend_call(RTLIL::Design *design, FILE *f, std::string filename, std::vector<std::string> args);
+	static void frontend_call(RTLIL::Design *design, std::istream *f, std::string filename, std::string command);
+	static void frontend_call(RTLIL::Design *design, std::istream *f, std::string filename, std::vector<std::string> args);
 };
 
 struct Backend : Pass
diff --git a/kernel/yosys.h b/kernel/yosys.h
index bfadb5ffc..87c99d1f6 100644
--- a/kernel/yosys.h
+++ b/kernel/yosys.h
@@ -47,6 +47,7 @@
 
 #include <sstream>
 #include <fstream>
+#include <istream>
 #include <ostream>
 #include <iostream>
 
-- 
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