Added ProcessStream (popen wrapper).

This commit is contained in:
flash 2023-01-25 22:26:36 +00:00
parent 99a4e0c302
commit 1a8344c1c3
2 changed files with 98 additions and 1 deletions

View file

@ -1 +1 @@
0.2301.102150
0.2301.252226

97
src/IO/ProcessStream.php Normal file
View file

@ -0,0 +1,97 @@
<?php
// ProcessStream.php
// Created: 2023-01-25
// Updated: 2023-01-25
namespace Index\IO;
class ProcessStream extends Stream {
private $handle;
private bool $canRead;
private bool $canWrite;
public function __construct(string $command, string $mode) {
$this->handle = popen($command, $mode);
$this->canRead = strpos($mode, 'r') !== false;
$this->canWrite = strpos($mode, 'w') !== false;
if(!is_resource($this->handle))
throw new IOException('Failed to create process.');
}
public function getPosition(): int {
return -1;
}
public function getLength(): int {
return -1;
}
public function setLength(int $length): void {}
public function canRead(): bool {
return $this->canRead;
}
public function canWrite(): bool {
return $this->canWrite;
}
public function canSeek(): bool {
return false;
}
public function hasTimedOut(): bool {
return false;
}
public function isBlocking(): bool {
return true;
}
public function isEnded(): bool {
return feof($this->handle);
}
public function readChar(): ?string {
$char = fgetc($this->handle);
if($char === false)
return null;
return $char;
}
public function readLine(): ?string {
return ($line = fgets($this->handle)) === false
? null : $line;
}
public function read(int $length): ?string {
$buffer = fread($this->handle, $length);
if($buffer === false)
return null;
return $buffer;
}
public function seek(int $offset, int $origin = self::START): int {
throw new IOException('Cannot seek ProcessStream.');
}
public function write(string $buffer, int $length = -1): void {
if($length >= 0)
fwrite($this->handle, $buffer, $length);
else
fwrite($this->handle, $buffer);
}
public function writeChar(string $char): void {
fwrite($this->handle, $char, 1);
}
public function flush(): void {}
public function close(): void {
if(is_resource($this->handle)) {
pclose($this->handle);
$this->handle = null;
}
}
}