diff options
Diffstat (limited to 'src/library.js')
| -rw-r--r-- | src/library.js | 126 |
1 files changed, 72 insertions, 54 deletions
diff --git a/src/library.js b/src/library.js index 08cb3baf..5608ea1e 100644 --- a/src/library.js +++ b/src/library.js @@ -63,6 +63,24 @@ LibraryManager.library = { // This is set to false when the runtime is initialized, allowing you // to modify the filesystem freely before run() is called. ignorePermissions: true, + createFileHandle: function(stream, fd) { + if (typeof stream === 'undefined') { + stream = null; + } + fd = (typeof fd !== 'undefined') ? fd : FS.streams.length; + for (var i = FS.streams.length; i < fd; i++) { + FS.streams[i] = null; // Keep dense + } + // Close WebSocket first if we are about to replace the fd (i.e. dup2) + if (FS.streams[fd] && FS.streams[fd].socket && FS.streams[fd].socket.close) { + FS.streams[fd].socket.close(); + } + FS.streams[fd] = stream; + return fd; + }, + removeFileHandle: function(fd) { + FS.streams[fd] = null; + }, joinPath: function(parts, forceRelative) { var ret = parts[0]; for (var i = 1; i < parts.length; i++) { @@ -677,10 +695,9 @@ LibraryManager.library = { ___setErrNo(ERRNO_CODES.EACCES); return 0; } - var id = FS.streams.length; // Keep dense var contents = []; for (var key in target.contents) contents.push(key); - FS.streams[id] = { + var id = FS.createFileHandle({ path: path, object: target, // An index into contents. Special values: -2 is ".", -1 is "..". @@ -697,7 +714,7 @@ LibraryManager.library = { contents: contents, // Each stream has its own area for readdir() returns. currentEntry: _malloc(___dirent_struct_layout.__size__) - }; + }); #if ASSERTIONS FS.checkStreams(); #endif @@ -1215,7 +1232,7 @@ LibraryManager.library = { finalPath = path.parentPath + '/' + path.name; } // Actually create an open stream. - var id = FS.streams.length; // Keep dense + var id; if (target.isFolder) { var entryBuffer = 0; if (___dirent_struct_layout) { @@ -1223,7 +1240,7 @@ LibraryManager.library = { } var contents = []; for (var key in target.contents) contents.push(key); - FS.streams[id] = { + id = FS.createFileHandle({ path: finalPath, object: target, // An index into contents. Special values: -2 is ".", -1 is "..". @@ -1240,9 +1257,9 @@ LibraryManager.library = { contents: contents, // Each stream has its own area for readdir() returns. currentEntry: entryBuffer - }; + }); } else { - FS.streams[id] = { + id = FS.createFileHandle({ path: finalPath, object: target, position: 0, @@ -1252,7 +1269,7 @@ LibraryManager.library = { error: false, eof: false, ungotten: [] - }; + }); } #if ASSERTIONS FS.checkStreams(); @@ -1295,10 +1312,7 @@ LibraryManager.library = { newStream[member] = stream[member]; } arg = dup2 ? arg : Math.max(arg, FS.streams.length); // dup2 wants exactly arg; fcntl wants a free descriptor >= arg - for (var i = FS.streams.length; i < arg; i++) { - FS.streams[i] = null; // Keep dense - } - FS.streams[arg] = newStream; + FS.createFileHandle(newStream, arg); #if ASSERTIONS FS.checkStreams(); #endif @@ -1775,12 +1789,14 @@ LibraryManager.library = { return bytesRead; } }, - read__deps: ['$FS', '__setErrNo', '$ERRNO_CODES', 'pread'], + read__deps: ['$FS', '__setErrNo', '$ERRNO_CODES', 'recv', 'pread'], read: function(fildes, buf, nbyte) { // ssize_t read(int fildes, void *buf, size_t nbyte); // http://pubs.opengroup.org/onlinepubs/000095399/functions/read.html var stream = FS.streams[fildes]; - if (!stream) { + if ('socket' in stream) { + return _recv(fildes, buf, nbyte, 0); + } else if (!stream) { ___setErrNo(ERRNO_CODES.EBADF); return -1; } else if (!stream.isRead) { @@ -1971,12 +1987,14 @@ LibraryManager.library = { return i; } }, - write__deps: ['$FS', '__setErrNo', '$ERRNO_CODES', 'pwrite'], + write__deps: ['$FS', '__setErrNo', '$ERRNO_CODES', 'send', 'pwrite'], write: function(fildes, buf, nbyte) { // ssize_t write(int fildes, const void *buf, size_t nbyte); // http://pubs.opengroup.org/onlinepubs/000095399/functions/write.html var stream = FS.streams[fildes]; - if (!stream) { + if ('socket' in stream) { + return _send(fildes, buf, nbyte, 0); + } else if (!stream) { ___setErrNo(ERRNO_CODES.EBADF); return -1; } else if (!stream.isWrite) { @@ -7291,7 +7309,13 @@ LibraryManager.library = { */ socket__deps: ['$Sockets'], socket: function(family, type, protocol) { - var fd = Sockets.nextFd++; + var fd = FS.createFileHandle({ + addr: null, + port: null, + inQueue: new CircularBuffer(INCOMING_QUEUE_LENGTH), + header: new Uint16Array(2), + bound: false + }; assert(fd < 64); // select() assumes socket fd values are in 0..63 var stream = type == {{{ cDefine('SOCK_STREAM') }}}; if (protocol) { @@ -7408,13 +7432,6 @@ LibraryManager.library = { }; }; - Sockets.fds[fd] = { - addr: null, - port: null, - inQueue: new CircularBuffer(INCOMING_QUEUE_LENGTH), - header: new Uint16Array(2), - bound: false - }; return fd; }, @@ -7436,7 +7453,7 @@ LibraryManager.library = { bind__deps: ['$Sockets', '_inet_ntop_raw', 'ntohs', 'mkport'], bind: function(fd, addr, addrlen) { - var info = Sockets.fds[fd]; + var info = FS.streams[fd]; if (!info) return -1; if (addr) { info.port = _ntohs(getValue(addr + Sockets.sockaddr_in_layout.sin_port, 'i16')); @@ -7457,7 +7474,7 @@ LibraryManager.library = { sendmsg__deps: ['$Sockets', 'bind', '_inet_ntop_raw', 'ntohs'], sendmsg: function(fd, msg, flags) { - var info = Sockets.fds[fd]; + var info = FS.streams[fd]; if (!info) return -1; // if we are not connected, use the address info in the message if (!info.bound) { @@ -7513,7 +7530,7 @@ LibraryManager.library = { recvmsg__deps: ['$Sockets', 'bind', '__setErrNo', '$ERRNO_CODES', 'htons'], recvmsg: function(fd, msg, flags) { - var info = Sockets.fds[fd]; + var info = FS.streams[fd]; if (!info) return -1; // if we are not connected, use the address info in the message if (!info.port) { @@ -7564,14 +7581,14 @@ LibraryManager.library = { }, shutdown: function(fd, how) { - var info = Sockets.fds[fd]; + var info = FS.streams[fd]; if (!info) return -1; info.close(); - Sockets.fds[fd] = null; + FS.removeFileHandle(fd); }, ioctl: function(fd, request, varargs) { - var info = Sockets.fds[fd]; + var info = FS.streams[fd]; if (!info) return -1; var bytes = 0; if (info.hasData()) { @@ -7591,7 +7608,7 @@ LibraryManager.library = { // TODO: webrtc queued incoming connections, etc. // For now, the model is that bind does a connect, and we "accept" that one connection, // which has host:port the same as ours. We also return the same socket fd. - var info = Sockets.fds[fd]; + var info = FS.streams[fd]; if (!info) return -1; if (addr) { setValue(addr + Sockets.sockaddr_in_layout.sin_addr, info.addr, 'i32'); @@ -7632,7 +7649,7 @@ LibraryManager.library = { var mask = 1 << (fd % 32), int = fd < 32 ? srcLow : srcHigh; if (int & mask) { // index is in the set, check if it is ready for read - var info = Sockets.fds[fd]; + var info = FS.streams[fd]; if (info && can(info)) { // set bit fd < 32 ? (dstLow = dstLow | mask) : (dstHigh = dstHigh | mask); @@ -7657,22 +7674,21 @@ LibraryManager.library = { #else socket__deps: ['$Sockets'], socket: function(family, type, protocol) { - var fd = Sockets.nextFd++; - assert(fd < 64); // select() assumes socket fd values are in 0..63 var stream = type == {{{ cDefine('SOCK_STREAM') }}}; if (protocol) { - assert(stream == (protocol == {{{ cDefine('IPPROTO_TCP') }}})); // if stream, must be tcp + assert(stream == (protocol == {{{ cDefine('IPPROTO_TCP') }}})); // if SOCK_STREAM, must be tcp } - Sockets.fds[fd] = { + var fd = FS.createFileHandle({ connected: false, stream: stream - }; + }); + assert(fd < 64); // select() assumes socket fd values are in 0..63 return fd; }, - connect__deps: ['$Sockets', '_inet_ntop_raw', 'htons', 'gethostbyname'], + connect__deps: ['$FS', '$Sockets', '_inet_ntop_raw', 'ntohs', 'gethostbyname'], connect: function(fd, addr, addrlen) { - var info = Sockets.fds[fd]; + var info = FS.streams[fd]; if (!info) return -1; info.connected = true; info.addr = getValue(addr + Sockets.sockaddr_in_layout.sin_addr, 'i32'); @@ -7788,9 +7804,9 @@ LibraryManager.library = { return 0; }, - recv__deps: ['$Sockets'], + recv__deps: ['$FS'], recv: function(fd, buf, len, flags) { - var info = Sockets.fds[fd]; + var info = FS.streams[fd]; if (!info) return -1; if (!info.hasData()) { ___setErrNo(ERRNO_CODES.EAGAIN); // no data, and all sockets are nonblocking, so this is the right behavior @@ -7814,17 +7830,17 @@ LibraryManager.library = { return buffer.length; }, - send__deps: ['$Sockets'], + send__deps: ['$FS'], send: function(fd, buf, len, flags) { - var info = Sockets.fds[fd]; + var info = FS.streams[fd]; if (!info) return -1; info.sender(HEAPU8.subarray(buf, buf+len)); return len; }, - sendmsg__deps: ['$Sockets', 'connect'], + sendmsg__deps: ['$FS', '$Sockets', 'connect'], sendmsg: function(fd, msg, flags) { - var info = Sockets.fds[fd]; + var info = FS.streams[fd]; if (!info) return -1; // if we are not connected, use the address info in the message if (!info.connected) { @@ -7857,9 +7873,9 @@ LibraryManager.library = { return ret; }, - recvmsg__deps: ['$Sockets', 'connect', 'recv', '__setErrNo', '$ERRNO_CODES', 'htons'], + recvmsg__deps: ['$FS', '$Sockets', 'connect', 'recv', '__setErrNo', '$ERRNO_CODES', 'htons'], recvmsg: function(fd, msg, flags) { - var info = Sockets.fds[fd]; + var info = FS.streams[fd]; if (!info) return -1; // if we are not connected, use the address info in the message if (!info.connected) { @@ -7915,9 +7931,9 @@ LibraryManager.library = { return ret; }, - recvfrom__deps: ['$Sockets', 'connect', 'recv'], + recvfrom__deps: ['$FS', 'connect', 'recv'], recvfrom: function(fd, buf, len, flags, addr, addrlen) { - var info = Sockets.fds[fd]; + var info = FS.streams[fd]; if (!info) return -1; // if we are not connected, use the address info in the message if (!info.connected) { @@ -7928,14 +7944,14 @@ LibraryManager.library = { }, shutdown: function(fd, how) { - var info = Sockets.fds[fd]; + var info = FS.streams[fd]; if (!info) return -1; info.socket.close(); - Sockets.fds[fd] = null; + FS.removeFileHandle(fd); }, ioctl: function(fd, request, varargs) { - var info = Sockets.fds[fd]; + var info = FS.streams[fd]; if (!info) return -1; var bytes = 0; if (info.hasData()) { @@ -7960,11 +7976,12 @@ LibraryManager.library = { return 0; }, + accept__deps: ['$FS', '$Sockets'], accept: function(fd, addr, addrlen) { // TODO: webrtc queued incoming connections, etc. // For now, the model is that bind does a connect, and we "accept" that one connection, // which has host:port the same as ours. We also return the same socket fd. - var info = Sockets.fds[fd]; + var info = FS.streams[fd]; if (!info) return -1; if (addr) { setValue(addr + Sockets.sockaddr_in_layout.sin_addr, info.addr, 'i32'); @@ -7974,6 +7991,7 @@ LibraryManager.library = { return fd; }, + select__deps: ['$FS'], select: function(nfds, readfds, writefds, exceptfds, timeout) { // readfds are supported, // writefds checks socket open status @@ -8019,7 +8037,7 @@ LibraryManager.library = { var mask = 1 << (fd % 32), int = fd < 32 ? srcLow : srcHigh; if (int & mask) { // index is in the set, check if it is ready for read - var info = Sockets.fds[fd]; + var info = FS.streams[fd]; if (info && can(info)) { // set bit fd < 32 ? (dstLow = dstLow | mask) : (dstHigh = dstHigh | mask); |