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-rw-r--r--src/library_tty.js36
1 files changed, 26 insertions, 10 deletions
diff --git a/src/library_tty.js b/src/library_tty.js
index 6b2368e6..53239989 100644
--- a/src/library_tty.js
+++ b/src/library_tty.js
@@ -1,17 +1,35 @@
mergeInto(LibraryManager.library, {
$TTY__deps: ['$FS'],
+ $TTY__postset: '__ATINIT__.unshift({ func: function() { TTY.init() } });' +
+ '__ATEXIT__.push({ func: function() { TTY.shutdown() } });' +
+ 'TTY.utf8 = new Runtime.UTF8Processor();',
$TTY: {
ttys: [],
+ init: function () {
+ if (ENVIRONMENT_IS_NODE) {
+ // currently, FS.init does not distinguish if process.stdin is a file or TTY
+ // device, it always assumes it's a TTY device. because of this, we're forcing
+ // process.stdin to UTF8 encoding to at least make stdin reading compatible
+ // with text files until FS.init can be refactored.
+ process['stdin']['setEncoding']('utf8');
+ }
+ },
+ shutdown: function() {
+ if (ENVIRONMENT_IS_NODE) {
+ // inolen: any idea as to why node -e 'process.stdin.read()' wouldn't exit immediately (with process.stdin being a tty)?
+ // isaacs: because now it's reading from the stream, you've expressed interest in it, so that read() kicks off a _read() which creates a ReadReq operation
+ // inolen: I thought read() in that case was a synchronous operation that just grabbed some amount of buffered data if it exists?
+ // isaacs: it is. but it also triggers a _read() call, which calls readStart() on the handle
+ // isaacs: do process.stdin.pause() and i'd think it'd probably close the pending call
+ process['stdin']['pause']();
+ }
+ },
register: function(dev, ops) {
TTY.ttys[dev] = { input: [], output: [], ops: ops };
FS.registerDevice(dev, TTY.stream_ops);
},
stream_ops: {
open: function(stream) {
- // this wouldn't be required if the library wasn't eval'd at first...
- if (!TTY.utf8) {
- TTY.utf8 = new Runtime.UTF8Processor();
- }
var tty = TTY.ttys[stream.node.rdev];
if (!tty) {
throw new FS.ErrnoError(ERRNO_CODES.ENODEV);
@@ -66,8 +84,6 @@ mergeInto(LibraryManager.library, {
return i;
}
},
- // NOTE: This is weird to support stdout and stderr
- // overrides in addition to print and printErr overrides.
default_tty_ops: {
// get_char has 3 particular return values:
// a.) the next character represented as an integer
@@ -77,11 +93,11 @@ mergeInto(LibraryManager.library, {
if (!tty.input.length) {
var result = null;
if (ENVIRONMENT_IS_NODE) {
- if (process.stdin._readableState && process.stdin._readableState.ended) {
- return null; // EOF
- }
- result = process.stdin.read();
+ result = process['stdin']['read']();
if (!result) {
+ if (process['stdin']['_readableState'] && process['stdin']['_readableState']['ended']) {
+ return null; // EOF
+ }
return undefined; // no data available
}
} else if (typeof window != 'undefined' &&