-
-
Notifications
You must be signed in to change notification settings - Fork 21k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Implement
OS.execute_with_pipe method to run process with redirecte…
…d stdio. Implement `pipe://*` path handling for creation of named pipes.
- Loading branch information
Showing
16 changed files
with
790 additions
and
11 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,185 @@ | ||
| /**************************************************************************/ | ||
| /* file_access_unix_pipe.cpp */ | ||
| /**************************************************************************/ | ||
| /* This file is part of: */ | ||
| /* GODOT ENGINE */ | ||
| /* https://godotengine.org */ | ||
| /**************************************************************************/ | ||
| /* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */ | ||
| /* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */ | ||
| /* */ | ||
| /* Permission is hereby granted, free of charge, to any person obtaining */ | ||
| /* a copy of this software and associated documentation files (the */ | ||
| /* "Software"), to deal in the Software without restriction, including */ | ||
| /* without limitation the rights to use, copy, modify, merge, publish, */ | ||
| /* distribute, sublicense, and/or sell copies of the Software, and to */ | ||
| /* permit persons to whom the Software is furnished to do so, subject to */ | ||
| /* the following conditions: */ | ||
| /* */ | ||
| /* The above copyright notice and this permission notice shall be */ | ||
| /* included in all copies or substantial portions of the Software. */ | ||
| /* */ | ||
| /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ | ||
| /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ | ||
| /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */ | ||
| /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ | ||
| /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ | ||
| /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ | ||
| /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ | ||
| /**************************************************************************/ | ||
|
|
||
| #include "file_access_unix_pipe.h" | ||
|
|
||
| #if defined(UNIX_ENABLED) | ||
|
|
||
| #include "core/os/os.h" | ||
| #include "core/string/print_string.h" | ||
|
|
||
| #include <errno.h> | ||
| #include <fcntl.h> | ||
| #include <sys/stat.h> | ||
| #include <sys/types.h> | ||
| #include <unistd.h> | ||
|
|
||
| Error FileAccessUnixPipe::open_existing(int p_rfd, int p_wfd) { | ||
| // Open pipe using handles created by pipe(fd) call in the OS.execute_with_pipe. | ||
| _close(); | ||
|
|
||
| path_src = String(); | ||
| unlink_on_close = false; | ||
| ERR_FAIL_COND_V_MSG(fd[0] >= 0 || fd[1] >= 0, ERR_ALREADY_IN_USE, "Pipe is already in use."); | ||
| fd[0] = p_rfd; | ||
| fd[1] = p_wfd; | ||
|
|
||
| last_error = OK; | ||
| return OK; | ||
| } | ||
|
|
||
| Error FileAccessUnixPipe::open_internal(const String &p_path, int p_mode_flags) { | ||
| _close(); | ||
|
|
||
| path_src = p_path; | ||
| ERR_FAIL_COND_V_MSG(fd[0] >= 0 || fd[1] >= 0, ERR_ALREADY_IN_USE, "Pipe is already in use."); | ||
|
|
||
| path = String("/tmp/") + p_path.replace("pipe://", "").replace("/", "_"); | ||
| struct stat st = {}; | ||
| int err = stat(path.utf8().get_data(), &st); | ||
| if (err) { | ||
| if (mkfifo(path.utf8().get_data(), 0666) != 0) { | ||
| last_error = ERR_FILE_CANT_OPEN; | ||
| return last_error; | ||
| } | ||
| unlink_on_close = true; | ||
| } else { | ||
| ERR_FAIL_COND_V_MSG(!S_ISFIFO(st.st_mode), ERR_ALREADY_IN_USE, "Pipe name is already used by file."); | ||
| } | ||
|
|
||
| int f = ::open(path.utf8().get_data(), O_RDWR | O_CLOEXEC); | ||
| if (f < 0) { | ||
| switch (errno) { | ||
| case ENOENT: { | ||
| last_error = ERR_FILE_NOT_FOUND; | ||
| } break; | ||
| default: { | ||
| last_error = ERR_FILE_CANT_OPEN; | ||
| } break; | ||
| } | ||
| return last_error; | ||
| } | ||
|
|
||
| // Set close on exec to avoid leaking it to subprocesses. | ||
| fd[0] = f; | ||
| fd[1] = f; | ||
|
|
||
| last_error = OK; | ||
| return OK; | ||
| } | ||
|
|
||
| void FileAccessUnixPipe::_close() { | ||
| if (fd[0] < 0) { | ||
| return; | ||
| } | ||
|
|
||
| if (fd[1] != fd[0]) { | ||
| ::close(fd[1]); | ||
| } | ||
| ::close(fd[0]); | ||
| fd[0] = -1; | ||
| fd[1] = -1; | ||
|
|
||
| if (unlink_on_close) { | ||
| ::unlink(path.utf8().ptr()); | ||
| } | ||
| unlink_on_close = false; | ||
| } | ||
|
|
||
| bool FileAccessUnixPipe::is_open() const { | ||
| return (fd[0] >= 0 || fd[1] >= 0); | ||
| } | ||
|
|
||
| String FileAccessUnixPipe::get_path() const { | ||
| return path_src; | ||
| } | ||
|
|
||
| String FileAccessUnixPipe::get_path_absolute() const { | ||
| return path_src; | ||
| } | ||
|
|
||
| uint8_t FileAccessUnixPipe::get_8() const { | ||
| ERR_FAIL_COND_V_MSG(fd[0] < 0, 0, "Pipe must be opened before use."); | ||
|
|
||
| uint8_t b; | ||
| if (::read(fd[0], &b, 1) == 0) { | ||
| last_error = ERR_FILE_CANT_READ; | ||
| b = '\0'; | ||
| } else { | ||
| last_error = OK; | ||
| } | ||
| return b; | ||
| } | ||
|
|
||
| uint64_t FileAccessUnixPipe::get_buffer(uint8_t *p_dst, uint64_t p_length) const { | ||
| ERR_FAIL_COND_V(!p_dst && p_length > 0, -1); | ||
| ERR_FAIL_COND_V_MSG(fd[0] < 0, -1, "Pipe must be opened before use."); | ||
|
|
||
| uint64_t read = ::read(fd[0], p_dst, p_length); | ||
| if (read == p_length) { | ||
| last_error = ERR_FILE_CANT_READ; | ||
| } else { | ||
| last_error = OK; | ||
| } | ||
| return read; | ||
| } | ||
|
|
||
| Error FileAccessUnixPipe::get_error() const { | ||
| return last_error; | ||
| } | ||
|
|
||
| void FileAccessUnixPipe::store_8(uint8_t p_src) { | ||
| ERR_FAIL_COND_MSG(fd[1] < 0, "Pipe must be opened before use."); | ||
| if (::write(fd[1], &p_src, 1) != 1) { | ||
| last_error = ERR_FILE_CANT_WRITE; | ||
| } else { | ||
| last_error = OK; | ||
| } | ||
| } | ||
|
|
||
| void FileAccessUnixPipe::store_buffer(const uint8_t *p_src, uint64_t p_length) { | ||
| ERR_FAIL_COND_MSG(fd[1] < 0, "Pipe must be opened before use."); | ||
| ERR_FAIL_COND(!p_src && p_length > 0); | ||
| if (::write(fd[1], p_src, p_length) != (ssize_t)p_length) { | ||
| last_error = ERR_FILE_CANT_WRITE; | ||
| } else { | ||
| last_error = OK; | ||
| } | ||
| } | ||
|
|
||
| void FileAccessUnixPipe::close() { | ||
| _close(); | ||
| } | ||
|
|
||
| FileAccessUnixPipe::~FileAccessUnixPipe() { | ||
| _close(); | ||
| } | ||
|
|
||
| #endif // UNIX_ENABLED |
Oops, something went wrong.