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Jakub ZelenkaandDavid Carlier
32a0f3b6cf
This introduces new API for fd copying and modifies php_stream_copy_to_stream_ex to use it. The implementation is separated for various platforms and the end result have couple of implications: - sendfile is used for copying file to generic fd (e.g. sockets) on all platforms except Windows that use TransmitFile - splice is used for copying between generic fds (e.g. sockets) on Linux - copy_file_range should get used on alpine linux with directly using syscall (as musl does not seem to implement it) - copy_file_range is used in the loop so it is used multiple times for files bigger than 2GB on Linux. - file mmap for copying is removed as it allowed crashing PHP when another process modified mapped file - this was used as a fallback for file copying. Sendfile should partially replace it. - File to file copying was optimized on Windows with use of ReadFile and WriteFile. This also adds various tests including Linux unit tests. Closes GH-20399 Co-authored-by: David Carlier <devnexen@gmail.com>
54 lines
1.8 KiB
C
54 lines
1.8 KiB
C
/*
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+----------------------------------------------------------------------+
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| Copyright (c) The PHP Group |
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.01 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| https://www.php.net/license/3_01.txt |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Authors: Jakub Zelenka <bukka@php.net> |
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+----------------------------------------------------------------------+
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*/
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#ifndef PHP_IO_H
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#define PHP_IO_H
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#include "php.h"
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#include "php_network.h"
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#define PHP_IO_COPY_ALL SIZE_MAX
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typedef enum php_io_fd_type {
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PHP_IO_FD_FILE = 1,
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PHP_IO_FD_SOCKET,
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PHP_IO_FD_PIPE,
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} php_io_fd_type;
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typedef struct php_io_fd {
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union {
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int fd;
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php_socket_t socket;
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};
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php_io_fd_type fd_type;
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struct timeval timeout;
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unsigned is_blocked:1;
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} php_io_fd;
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typedef zend_result (*php_io_copy_fn)(php_io_fd *src, php_io_fd *dest, size_t maxlen, size_t *copied);
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typedef struct php_io {
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php_io_copy_fn copy;
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const char *platform_name;
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} php_io;
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PHPAPI php_io *php_io_get(void);
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/* Copies up to maxlen bytes from src to dest; *copied is set even on FAILURE */
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PHPAPI zend_result php_io_copy(php_io_fd *src, php_io_fd *dest, size_t maxlen, size_t *copied);
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#endif /* PHP_IO_H */
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