mirror of
https://github.com/lihop/godot-xterm.git
synced 2024-11-21 17:20:25 +01:00
feat(pty): further pty development
This commit is contained in:
Leroy Hopson
parent
52a259b019
commit
c36500615d
4 changed files with 332 additions and 110 deletions
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@ -1,8 +1,10 @@
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// SPDX-FileCopyrightText: 2021, 2024 Leroy Hopson <godot-xterm@leroy.nix.nz>
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// SPDX-FileCopyrightText: 2021, 2023-2024 Leroy Hopson <godot-xterm@leroy.nix.nz>
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// SPDX-License-Identifier: MIT
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#include "pty.h"
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#include "terminal.h"
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#include <uv.h>
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#include <xkbcommon/xkbcommon-keysyms.h>
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using namespace godot;
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@ -194,3 +196,131 @@ const Terminal::KeyMap Terminal::KEY_MAP = {
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{{KEY_F34, '\0'}, XKB_KEY_F34},
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{{KEY_F35, '\0'}, XKB_KEY_F35},
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};
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Error PTY::uv_err_to_godot_err(const int uv_err) {
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if (uv_err >= 0)
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return OK;
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// Rough translation of libuv error to godot error.
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// Not necessarily accurate.
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switch (uv_err) {
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case UV_EEXIST: // file already exists
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return ERR_ALREADY_EXISTS;
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case UV_EADDRINUSE: // address already in use
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return ERR_ALREADY_IN_USE;
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case UV_EBUSY: // resource busy or locked
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case UV_ETXTBSY: // text file is busy
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return ERR_BUSY;
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case UV_ECONNREFUSED: // connection refused
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return ERR_CANT_CONNECT;
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case UV_ECONNABORTED: // software caused connection abort
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case UV_ECONNRESET: // connection reset by peer
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case UV_EISCONN: // socket is already connected
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case UV_ENOTCONN: // socket is not connected
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return ERR_CONNECTION_ERROR;
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case UV_ENODEV: // no such device
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case UV_ENXIO: // no such device or address
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case UV_ESRCH: // no such process
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return ERR_DOES_NOT_EXIST;
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case UV_EROFS: // read-only file system
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return ERR_FILE_CANT_WRITE;
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case UV_EOF: // end of file
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return ERR_FILE_EOF;
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case UV_ENOENT: // no such file or directory
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return ERR_FILE_NOT_FOUND;
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case UV_EAI_BADFLAGS: // bad ai_flags value
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case UV_EAI_BADHINTS: // invalid value for hints
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case UV_EFAULT: // bad address in system call argument
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case UV_EFTYPE: // inappropriate file type or format
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case UV_EINVAL: // invalid argument
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case UV_ENOTTY: // inappropriate ioctl for device
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case UV_EPROTOTYPE: // protocol wrong type for socket
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return ERR_INVALID_PARAMETER; // Parameter passed is invalid
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case UV_ENOSYS: // function not implemented
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return ERR_METHOD_NOT_FOUND;
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case UV_EAI_MEMORY: // out of memory
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return ERR_OUT_OF_MEMORY;
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case UV_E2BIG: // argument list too long
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case UV_EFBIG: // file too large
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case UV_EMSGSIZE: // message too long
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case UV_ENAMETOOLONG: // name too long
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case UV_EOVERFLOW: // value too large for defined data type
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case UV_ERANGE: // result too large
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return ERR_PARAMETER_RANGE_ERROR; // Parameter given out of range
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case UV_ETIMEDOUT:
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return ERR_TIMEOUT; // connection timed out
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case UV_EACCES: // permission denied
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case UV_EPERM: // operation not permitted
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case UV_EXDEV: // cross-device link not permitted
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return ERR_UNAUTHORIZED;
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case UV_EADDRNOTAVAIL: // address not available
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case UV_EAFNOSUPPORT: // address family not supported
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case UV_EAGAIN: // resource temporarily unavailable
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case UV_EAI_ADDRFAMILY: // address family not supported
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case UV_EAI_FAMILY: // ai_family not supported
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case UV_EAI_SERVICE: // service not available for socket type
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case UV_EAI_SOCKTYPE: // socket type not supported
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case UV_ENOPROTOOPT: // protocol not available
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case UV_ENOTSUP: // operation not supported on socket
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case UV_EPROTONOSUPPORT: // protocol not supported
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case UV_ESOCKTNOSUPPORT: // socket type not supported
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return ERR_UNAVAILABLE; // What is requested is
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// unsupported/unavailable
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case UV_EAI_NODATA: // no address
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case UV_EDESTADDRREQ: // destination address required
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return ERR_UNCONFIGURED;
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case UV_EAI_AGAIN: // temporary failure
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case UV_EAI_CANCELED: // request canceled
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case UV_EAI_FAIL: // permanent failure
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case UV_EAI_NONAME: // unknown node or service
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case UV_EAI_OVERFLOW: // argument buffer overflow
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case UV_EAI_PROTOCOL: // resolved protocol is unknown
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case UV_EALREADY: // connection already in progress
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case UV_EBADF: // bad file descriptor
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case UV_ECANCELED: // operation canceled
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case UV_ECHARSET: // invalid Unicode character
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case UV_EHOSTUNREACH: // host is unreachable
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case UV_EIO: // i/o error
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case UV_EILSEQ: // illegal byte sequence
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case UV_EISDIR: // illegal operation on a directory
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case UV_ELOOP: // too many symbolic links encountered
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case UV_EMFILE: // too many open files
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case UV_ENETDOWN: // network is down
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case UV_ENETUNREACH: // network is unreachable
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case UV_ENFILE: // file table overflow
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case UV_ENOBUFS: // no buffer space available
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case UV_ENOMEM: // not enough memory
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case UV_ESHUTDOWN: // cannot send after transport endpoint shutdown
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case UV_EINTR: // interrupted system call
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case UV_EMLINK: // too many links
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case UV_ENONET: // machine is not on the network
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case UV_ENOSPC: // no space left on device
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case UV_ENOTDIR: // not a directory
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case UV_ENOTEMPTY: // directory not empty
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case UV_ENOTSOCK: // socket operation on non-socket
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case UV_EPIPE: // broken pipe
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case UV_EPROTO: // protocol error
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case UV_ESPIPE: // invalid seek
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case UV_UNKNOWN: // unknown error
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default:
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return FAILED; // Generic fail error
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}
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}
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@ -8,20 +8,71 @@
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#include <unistd.h>
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#endif
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#define UV_ERR_MSG(uv_err) \
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String(uv_err_name(uv_err)) + String(": ") + String(uv_strerror(uv_err))
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#define ERR_FAIL_UV_ERR(uv_err) \
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ERR_FAIL_COND_V_MSG(uv_err < 0, PTY::uv_err_to_godot_err(uv_err), \
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UV_ERR_MSG(uv_err))
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using namespace godot;
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void _alloc_buffer(uv_handle_t *handle, size_t suggested_size, uv_buf_t *buf);
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void _read_cb(uv_stream_t *pipe, ssize_t nread, const uv_buf_t *buf);
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void _close_cb(uv_handle_t *handle);
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void PTY::_bind_methods() {
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BIND_ENUM_CONSTANT(SIGNAL_SIGHUP);
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BIND_ENUM_CONSTANT(SIGNAL_SIGINT);
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BIND_ENUM_CONSTANT(SIGNAL_SIGQUIT);
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BIND_ENUM_CONSTANT(SIGNAL_SIGILL);
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BIND_ENUM_CONSTANT(SIGNAL_SIGTRAP);
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BIND_ENUM_CONSTANT(SIGNAL_SIGABRT);
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BIND_ENUM_CONSTANT(SIGNAL_SIGBUS);
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BIND_ENUM_CONSTANT(SIGNAL_SIGFPE);
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BIND_ENUM_CONSTANT(SIGNAL_SIGKILL);
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BIND_ENUM_CONSTANT(SIGNAL_SIGUSR1);
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BIND_ENUM_CONSTANT(SIGNAL_SIGSEGV);
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BIND_ENUM_CONSTANT(SIGNAL_SIGUSR2);
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BIND_ENUM_CONSTANT(SIGNAL_SIGPIPE);
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BIND_ENUM_CONSTANT(SIGNAL_SIGALRM);
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BIND_ENUM_CONSTANT(SIGNAL_SIGTERM);
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ADD_SIGNAL(MethodInfo("data_received", PropertyInfo(Variant::PACKED_BYTE_ARRAY, "data")));
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ADD_SIGNAL(MethodInfo("exited", PropertyInfo(Variant::INT, "exit_code"), PropertyInfo(Variant::INT, "signal_code")));
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ClassDB::bind_method(D_METHOD("get_env"), &PTY::get_env);
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ClassDB::bind_method(D_METHOD("set_env", "env"), &PTY::set_env);
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ClassDB::add_property("PTY", PropertyInfo(Variant::DICTIONARY, "env"), "set_env", "get_env");
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ClassDB::bind_method(D_METHOD("get_use_os_env"), &PTY::get_use_os_env);
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ClassDB::bind_method(D_METHOD("set_use_os_env", "use_os_env"), &PTY::set_use_os_env);
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ClassDB::add_property("PTY", PropertyInfo(Variant::BOOL, "use_os_env"), "set_use_os_env", "get_use_os_env");
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ClassDB::bind_method(D_METHOD("get_pts"), &PTY::get_pts);
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ClassDB::bind_method(D_METHOD("fork", "file", "args", "cwd", "cols", "rows"), &PTY::fork, DEFVAL(""), DEFVAL(PackedStringArray()), DEFVAL("."), DEFVAL(80), DEFVAL(24));
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ClassDB::bind_method(D_METHOD("open", "cols", "rows"), &PTY::open, DEFVAL(80), DEFVAL(24));
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ClassDB::bind_method(D_METHOD("write", "data"), &PTY::write);
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ClassDB::bind_method(D_METHOD("kill", "signal"), &PTY::kill);
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ClassDB::bind_method(D_METHOD("_on_exit", "exit_code", "signal_code"), &PTY::_on_exit);
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}
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PTY::PTY() {
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os = OS::get_singleton();
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status = STATUS_NONE;
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env["TERM"] = "xterm-256color";
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env["COLORTERM"] = "truecolor";
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#if defined(__linux__) || defined(__APPLE__)
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uv_pipe_init(uv_default_loop(), &pipe, false);
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pipe.data = this;
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#endif
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}
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PTY::~PTY() {
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#if (defined(__linux__) || defined(__APPLE__)) && !defined(_PTY_DISABLED)
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if (pid > 0) kill(SIGNAL_SIGHUP);
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if (fd > 0) close(fd);
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#endif
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_close();
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}
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int PTY::get_cols() const {
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@ -48,19 +99,36 @@ void PTY::set_use_os_env(const bool value) {
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use_os_env = value;
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}
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String PTY::get_pts() const {
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return pts;
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}
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Error PTY::fork(const String &file, const PackedStringArray &args, const String &cwd, const int cols, const int rows) {
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String fork_file = _get_fork_file(file);
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Dictionary fork_env = _get_fork_env();
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Dictionary result;
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#if defined(__linux__) || defined(__APPLE__)
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String helper_path = ProjectSettings::get_singleton()->globalize_path("res://addons/godot_xterm/native/bin/spawn-helper");
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result = PTYUnix::fork(fork_file, args, PackedStringArray(), cwd, cols, rows, -1, -1, true, helper_path, Callable(this, "_on_exit"));
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fd = result["fd"];
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pid = result["pid"];
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String helper_path = ProjectSettings::get_singleton()->globalize_path("res://addons/godot_xterm/native/bin/spawn-helper");
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result = PTYUnix::fork(fork_file, args, PackedStringArray(), cwd, cols, rows, -1, -1, true, helper_path, Callable(this, "_on_exit"));
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#endif
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return static_cast<Error>((int)result["error"]);
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Error err = static_cast<Error>((int)result["error"]);
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ERR_FAIL_COND_V_MSG(err != OK, err, "Failed to fork.");
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fd = result["fd"];
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pid = result["pid"];
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pts = result["pty"];
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# if defined(__linux__) || defined(__APPLE__)
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err = _pipe_open(fd);
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if (err != OK) {
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status = STATUS_ERROR;
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ERR_FAIL_V_MSG(err, "Failed to open pipe.");
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}
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#endif
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return OK;
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}
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void PTY::kill(const int signal) {
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@ -71,14 +139,19 @@ void PTY::kill(const int signal) {
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#endif
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}
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Error PTY::open(const int cols, const int rows) const {
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Error PTY::open(const int cols, const int rows) {
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Dictionary result;
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#if defined(__linux__) || defined(__APPLE__)
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result = PTYUnix::open(cols, rows);
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#endif
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return static_cast<Error>((int)result["error"]);
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Error err = static_cast<Error>((int)result["error"]);
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ERR_FAIL_COND_V(err != OK, err);
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pts = result["pty"];
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return OK;
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}
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void PTY::resize(const int cols, const int rows) const {
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@ -87,45 +160,39 @@ void PTY::resize(const int cols, const int rows) const {
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void PTY::write(const Variant &data) const {
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}
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void PTY::_bind_methods() {
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BIND_ENUM_CONSTANT(SIGNAL_SIGHUP);
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BIND_ENUM_CONSTANT(SIGNAL_SIGINT);
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BIND_ENUM_CONSTANT(SIGNAL_SIGQUIT);
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BIND_ENUM_CONSTANT(SIGNAL_SIGILL);
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BIND_ENUM_CONSTANT(SIGNAL_SIGTRAP);
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BIND_ENUM_CONSTANT(SIGNAL_SIGABRT);
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BIND_ENUM_CONSTANT(SIGNAL_SIGBUS);
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BIND_ENUM_CONSTANT(SIGNAL_SIGFPE);
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BIND_ENUM_CONSTANT(SIGNAL_SIGKILL);
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BIND_ENUM_CONSTANT(SIGNAL_SIGUSR1);
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BIND_ENUM_CONSTANT(SIGNAL_SIGSEGV);
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BIND_ENUM_CONSTANT(SIGNAL_SIGUSR2);
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BIND_ENUM_CONSTANT(SIGNAL_SIGPIPE);
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BIND_ENUM_CONSTANT(SIGNAL_SIGALRM);
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BIND_ENUM_CONSTANT(SIGNAL_SIGTERM);
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void PTY::_process(double delta) {
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#if defined(__linux__) || defined(__APPLE__)
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if (status == STATUS_CONNECTED) {
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if (!uv_is_active((uv_handle_t *)&pipe)) {
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uv_read_start((uv_stream_t *)&pipe, _alloc_buffer, _read_cb);
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}
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ADD_SIGNAL(MethodInfo("exited", PropertyInfo(Variant::INT, "exit_code"), PropertyInfo(Variant::INT, "signal_code")));
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ClassDB::bind_method(D_METHOD("get_env"), &PTY::get_env);
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ClassDB::bind_method(D_METHOD("set_env", "env"), &PTY::set_env);
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ClassDB::add_property("PTY", PropertyInfo(Variant::DICTIONARY, "env"), "set_env", "get_env");
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ClassDB::bind_method(D_METHOD("get_use_os_env"), &PTY::get_use_os_env);
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ClassDB::bind_method(D_METHOD("set_use_os_env", "use_os_env"), &PTY::set_use_os_env);
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ClassDB::add_property("PTY", PropertyInfo(Variant::BOOL, "use_os_env"), "set_use_os_env", "get_use_os_env");
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ClassDB::bind_method(D_METHOD("fork", "file", "args", "cwd", "cols", "rows"), &PTY::fork, DEFVAL(""), DEFVAL(PackedStringArray()), DEFVAL("."), DEFVAL(80), DEFVAL(24));
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ClassDB::bind_method(D_METHOD("open", "cols", "rows"), &PTY::open, DEFVAL(80), DEFVAL(24));
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ClassDB::bind_method(D_METHOD("write", "data"), &PTY::write);
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ClassDB::bind_method(D_METHOD("kill", "signal"), &PTY::kill);
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ClassDB::bind_method(D_METHOD("_on_exit", "exit_code", "signal_code"), &PTY::_on_exit);
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uv_run(uv_default_loop(), UV_RUN_NOWAIT);
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}
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#endif
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}
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void PTY::_close() {
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#if defined(__linux__) || defined(__APPLE__)
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if (!uv_is_closing((uv_handle_t *)&pipe)) {
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uv_close((uv_handle_t *)&pipe, _close_cb);
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}
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uv_run(uv_default_loop(), UV_RUN_NOWAIT);
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if (fd > 0) close(fd);
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if (pid > 0) kill(SIGNAL_SIGHUP);
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fd = -1;
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pid = -1;
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status = STATUS_NONE;
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#endif
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}
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String PTY::_get_fork_file(const String &file) const {
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if (!file.is_empty()) return file;
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String shell_env = os->get_environment("SHELL");
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String shell_env = OS::get_singleton()->get_environment("SHELL");
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if (!shell_env.is_empty()) {
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return shell_env;
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}
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@ -186,6 +253,62 @@ Dictionary PTY::_get_fork_env() const {
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}
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void PTY::_on_exit(int exit_code, int exit_signal) {
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pid = -1;
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emit_signal(StringName("exited"), exit_code, exit_signal);
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}
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#if defined(__linux__) || defined(__APPLE__)
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void _alloc_buffer(uv_handle_t *handle, size_t suggested_size, uv_buf_t *buf) {
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buf->base = (char *)malloc(suggested_size);
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buf->len = suggested_size;
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}
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void _read_cb(uv_stream_t *pipe, ssize_t nread, const uv_buf_t *buf) {
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PTY *pty = static_cast<PTY *>(pipe->data);
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if (nread < 0) {
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switch (nread) {
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case UV_EOF:
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// Normal after shell exits.
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case UV_EIO:
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// Can happen when the process exits.
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// As long as PTY has caught it, we should be fine.
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uv_read_stop(pipe);
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pty->status = PTY::Status::STATUS_NONE;
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return;
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default:
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pty->status = PTY::Status::STATUS_ERROR;
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}
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return;
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}
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PackedByteArray data;
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data.resize(nread);
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memcpy(data.ptrw(), buf->base, nread);
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std::free((char *)buf->base);
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pty->call_deferred("emit_signal", "data_received", data);
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// Stop reading until the next poll, otherwise _read_cb could be called
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// repeatedly, blocking Godot, and eventually resulting in a memory pool
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// allocation error. This can be triggered with the command `cat /dev/urandom`
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// if reading is not stopped.
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uv_read_stop(pipe);
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}
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void _close_cb(uv_handle_t *pipe) {
|
||||
PTY *pty = static_cast<PTY *>(pipe->data);
|
||||
pty->status = PTY::Status::STATUS_NONE;
|
||||
}
|
||||
|
||||
Error PTY::_pipe_open(const int fd) {
|
||||
ERR_FAIL_COND_V_MSG(fd < 0, FAILED, "File descriptor must be a non-negative integer value.");
|
||||
|
||||
ERR_FAIL_UV_ERR(uv_pipe_open(&pipe, fd));
|
||||
ERR_FAIL_UV_ERR(uv_stream_set_blocking((uv_stream_t *)&pipe, false));
|
||||
ERR_FAIL_UV_ERR(uv_read_start((uv_stream_t *)&pipe, _alloc_buffer, _read_cb));
|
||||
|
||||
status = STATUS_CONNECTED;
|
||||
return OK;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -5,6 +5,7 @@
|
|||
|
||||
#include <godot_cpp/classes/node.hpp>
|
||||
#include <godot_cpp/classes/os.hpp>
|
||||
#include <uv.h>
|
||||
|
||||
namespace godot
|
||||
{
|
||||
|
|
@ -31,9 +32,19 @@ namespace godot
|
|||
SIGNAL_SIGTERM = 15,
|
||||
};
|
||||
|
||||
enum Status {
|
||||
STATUS_NONE,
|
||||
STATUS_CONNECTING,
|
||||
STATUS_CONNECTED,
|
||||
STATUS_PAUSED,
|
||||
STATUS_ERROR,
|
||||
};
|
||||
|
||||
PTY();
|
||||
~PTY();
|
||||
|
||||
Status status = STATUS_NONE;
|
||||
|
||||
int get_cols() const;
|
||||
int get_rows() const;
|
||||
|
||||
|
|
@ -43,19 +54,21 @@ namespace godot
|
|||
bool get_use_os_env() const;
|
||||
void set_use_os_env(const bool value);
|
||||
|
||||
String get_pts() const;
|
||||
|
||||
Error fork(const String &file = "", const PackedStringArray &args = PackedStringArray(), const String &cwd = ".", const int cols = 80, const int rows = 24);
|
||||
void kill(const int signum = Signal::SIGNAL_SIGHUP);
|
||||
Error open(const int cols = 80, const int rows = 24) const;
|
||||
Error open(const int cols = 80, const int rows = 24);
|
||||
void resize(const int cols, const int rows) const;
|
||||
void resizev(const Vector2i &size) const { resize(size.x, size.y); };
|
||||
void write(const Variant &data) const;
|
||||
|
||||
void _process(double delta) override;
|
||||
|
||||
protected:
|
||||
static void _bind_methods();
|
||||
|
||||
private:
|
||||
OS *os;
|
||||
|
||||
int pid = -1;
|
||||
int fd = -1;
|
||||
|
||||
|
|
@ -65,9 +78,19 @@ namespace godot
|
|||
Dictionary env = Dictionary();
|
||||
bool use_os_env = true;
|
||||
|
||||
String pts = "";
|
||||
|
||||
String _get_fork_file(const String &file) const;
|
||||
Dictionary _get_fork_env() const;
|
||||
void _on_exit(int exit_code, int exit_signal);
|
||||
void _close();
|
||||
|
||||
#if defined(__linux__) || defined(__APPLE__)
|
||||
uv_pipe_t pipe;
|
||||
Error _pipe_open(const int fd);
|
||||
#endif
|
||||
|
||||
static Error uv_err_to_godot_err(const int uv_err);
|
||||
};
|
||||
} // namespace godot
|
||||
|
||||
|
|
|
|||
|
|
@ -22,60 +22,10 @@ func test_fork_succeeds():
|
|||
assert_eq(err, OK)
|
||||
|
||||
|
||||
func xtest_fork_has_output():
|
||||
pty.call_deferred("fork", "exit")
|
||||
func test_fork_emits_data_received():
|
||||
pty.call_deferred("fork", "sh", ["-c", "echo'"])
|
||||
await wait_for_signal(pty.data_received, 1)
|
||||
var expected := PackedByteArray(
|
||||
[
|
||||
101,
|
||||
120,
|
||||
101,
|
||||
99,
|
||||
118,
|
||||
112,
|
||||
40,
|
||||
51,
|
||||
41,
|
||||
32,
|
||||
102,
|
||||
97,
|
||||
105,
|
||||
108,
|
||||
101,
|
||||
100,
|
||||
46,
|
||||
58,
|
||||
32,
|
||||
78,
|
||||
111,
|
||||
32,
|
||||
115,
|
||||
117,
|
||||
99,
|
||||
104,
|
||||
32,
|
||||
102,
|
||||
105,
|
||||
108,
|
||||
101,
|
||||
32,
|
||||
111,
|
||||
114,
|
||||
32,
|
||||
100,
|
||||
105,
|
||||
114,
|
||||
101,
|
||||
99,
|
||||
116,
|
||||
111,
|
||||
114,
|
||||
121,
|
||||
13,
|
||||
10
|
||||
]
|
||||
)
|
||||
assert_signal_emitted_with_parameters(pty, "data_received", [expected])
|
||||
assert_signal_emitted(pty, "data_received")
|
||||
|
||||
|
||||
func test_open_succeeds():
|
||||
|
|
@ -90,13 +40,13 @@ func test_open_creates_a_new_pty():
|
|||
assert_eq(new_num_pts, num_pts + 1)
|
||||
|
||||
|
||||
func xtest_open_pty_has_correct_name():
|
||||
func test_open_pty_has_correct_name():
|
||||
var original_pts = helper.get_pts()
|
||||
var result = pty.open()
|
||||
pty.open()
|
||||
var new_pts = helper.get_pts()
|
||||
for pt in original_pts:
|
||||
new_pts.erase(pt)
|
||||
#assert_eq(result[1].pty, new_pts[0])
|
||||
assert_eq(pty.get_pts(), new_pts[0])
|
||||
|
||||
|
||||
func xtest_open_pty_has_correct_win_size():
|
||||
|
|
@ -147,8 +97,6 @@ func test_emits_exit_code_on_failure():
|
|||
|
||||
|
||||
func test_emits_exited_on_kill():
|
||||
if OS.get_name() == "macOS":
|
||||
return
|
||||
pty.call("fork", "yes")
|
||||
await wait_frames(1)
|
||||
pty.call_deferred("kill", PTY.SIGNAL_SIGKILL)
|
||||
|
|
@ -157,8 +105,6 @@ func test_emits_exited_on_kill():
|
|||
|
||||
|
||||
func test_emits_exited_with_signal():
|
||||
if OS.get_name() == "macOS":
|
||||
return
|
||||
pty.call("fork", "yes")
|
||||
await wait_frames(1)
|
||||
pty.call_deferred("kill", PTY.SIGNAL_SIGSEGV)
|
||||
|
|
|
|||
Loading…
Reference in a new issue