From 3bee3cfeadcb57833a90c7789333750676f39e81 Mon Sep 17 00:00:00 2001
From: Robert Ou <rqou@robertou.com>
Date: Wed, 15 Nov 2017 03:14:14 -0800
Subject: Mount NODEFS if using emscripten and nodejs

Mounts root directory on `/hostfs` and the current working directory on
`/hostcwd`
---
 icebram/icebram.cc   | 16 ++++++++++++++++
 icemulti/icemulti.cc | 16 ++++++++++++++++
 icepack/icepack.cc   | 16 ++++++++++++++++
 icepll/icepll.cc     | 16 ++++++++++++++++
 icetime/icetime.cc   | 16 ++++++++++++++++
 5 files changed, 80 insertions(+)

diff --git a/icebram/icebram.cc b/icebram/icebram.cc
index 245a0ab..a796f92 100644
--- a/icebram/icebram.cc
+++ b/icebram/icebram.cc
@@ -28,6 +28,10 @@
 #include <fstream>
 #include <iostream>
 
+#ifdef __EMSCRIPTEN__
+#include <emscripten.h>
+#endif
+
 using std::map;
 using std::pair;
 using std::vector;
@@ -109,6 +113,18 @@ void help(const char *cmd)
 
 int main(int argc, char **argv)
 {
+#ifdef __EMSCRIPTEN__
+	EM_ASM(
+		if (ENVIRONMENT_IS_NODE)
+		{
+			FS.mkdir('/hostcwd');
+			FS.mount(NODEFS, { root: '.' }, '/hostcwd');
+			FS.mkdir('/hostfs');
+			FS.mount(NODEFS, { root: '/' }, '/hostfs');
+		}
+	);
+#endif
+
 	bool verbose = false;
 	bool generate = false;
 
diff --git a/icemulti/icemulti.cc b/icemulti/icemulti.cc
index 65ae6b6..4bc0919 100644
--- a/icemulti/icemulti.cc
+++ b/icemulti/icemulti.cc
@@ -24,6 +24,10 @@
 #include <stdlib.h>
 #include <string.h>
 
+#ifdef __EMSCRIPTEN__
+#include <emscripten.h>
+#endif
+
 #define log(...) fprintf(stderr, __VA_ARGS__);
 #define error(...) do { fprintf(stderr, "%s: ", program_short_name); fprintf(stderr, __VA_ARGS__); exit(EXIT_FAILURE); } while (0)
 
@@ -178,6 +182,18 @@ void usage()
 
 int main(int argc, char **argv)
 {
+#ifdef __EMSCRIPTEN__
+    EM_ASM(
+        if (ENVIRONMENT_IS_NODE)
+        {
+            FS.mkdir('/hostcwd');
+            FS.mount(NODEFS, { root: '.' }, '/hostcwd');
+            FS.mkdir('/hostfs');
+            FS.mount(NODEFS, { root: '/' }, '/hostfs');
+        }
+    );
+#endif
+
     int c;
     char *endptr = NULL;
     bool coldboot = false;
diff --git a/icepack/icepack.cc b/icepack/icepack.cc
index d845ba7..3029c25 100644
--- a/icepack/icepack.cc
+++ b/icepack/icepack.cc
@@ -34,6 +34,10 @@
 #include <stdio.h>
 #include <stdarg.h>
 
+#ifdef __EMSCRIPTEN__
+#include <emscripten.h>
+#endif
+
 #ifdef _WIN32
 #define __PRETTY_FUNCTION__ __FUNCTION__
 #endif
@@ -1338,6 +1342,18 @@ void usage()
 
 int main(int argc, char **argv)
 {
+#ifdef __EMSCRIPTEN__
+	EM_ASM(
+		if (ENVIRONMENT_IS_NODE)
+		{
+			FS.mkdir('/hostcwd');
+			FS.mount(NODEFS, { root: '.' }, '/hostcwd');
+			FS.mkdir('/hostfs');
+			FS.mount(NODEFS, { root: '/' }, '/hostfs');
+		}
+	);
+#endif
+
 	vector<string> parameters;
 	bool unpack_mode = false;
 	bool nosleep_mode = false;
diff --git a/icepll/icepll.cc b/icepll/icepll.cc
index b123f32..82bf3e3 100644
--- a/icepll/icepll.cc
+++ b/icepll/icepll.cc
@@ -20,6 +20,10 @@
 #include <string.h>
 #include <math.h>
 
+#ifdef __EMSCRIPTEN__
+#include <emscripten.h>
+#endif
+
 const char *binstr(int v, int n)
 {
 	static char buffer[16];
@@ -63,6 +67,18 @@ void help(const char *cmd)
 
 int main(int argc, char **argv)
 {
+#ifdef __EMSCRIPTEN__
+	EM_ASM(
+		if (ENVIRONMENT_IS_NODE)
+		{
+			FS.mkdir('/hostcwd');
+			FS.mount(NODEFS, { root: '.' }, '/hostcwd');
+			FS.mkdir('/hostfs');
+			FS.mount(NODEFS, { root: '/' }, '/hostfs');
+		}
+	);
+#endif
+
 	double f_pllin = 12;
 	double f_pllout = 60;
 	bool simple_feedback = true;
diff --git a/icetime/icetime.cc b/icetime/icetime.cc
index 0b7cea2..f9e0994 100644
--- a/icetime/icetime.cc
+++ b/icetime/icetime.cc
@@ -33,6 +33,10 @@
 #include <map>
 #include <set>
 
+#ifdef __EMSCRIPTEN__
+#include <emscripten.h>
+#endif
+
 // add this number of ns as estimate for clock distribution mismatch
 #define GLOBAL_CLK_DIST_JITTER 0.1
 
@@ -2223,6 +2227,18 @@ void help(const char *cmd)
 
 int main(int argc, char **argv)
 {
+#ifdef __EMSCRIPTEN__
+	EM_ASM(
+		if (ENVIRONMENT_IS_NODE)
+		{
+			FS.mkdir('/hostcwd');
+			FS.mount(NODEFS, { root: '.' }, '/hostcwd');
+			FS.mkdir('/hostfs');
+			FS.mount(NODEFS, { root: '/' }, '/hostfs');
+		}
+	);
+#endif
+
 	bool listnets = false;
 	bool print_timing = false;
 	bool interior_timing = false;
-- 
cgit v1.2.3