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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-13 11:30:08 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-13 11:30:08 +0000
commit4ce65d59ca91871cfd126497158200a818720bce (patch)
treee277def01fc7eba7dbc21c4a4ae5576e8aa2cf1f /vendor/guzzlehttp/psr7/src/BufferStream.php
parentInitial commit. (diff)
downloadicinga-php-library-4ce65d59ca91871cfd126497158200a818720bce.tar.xz
icinga-php-library-4ce65d59ca91871cfd126497158200a818720bce.zip
Adding upstream version 0.13.1.upstream/0.13.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'vendor/guzzlehttp/psr7/src/BufferStream.php')
-rw-r--r--vendor/guzzlehttp/psr7/src/BufferStream.php147
1 files changed, 147 insertions, 0 deletions
diff --git a/vendor/guzzlehttp/psr7/src/BufferStream.php b/vendor/guzzlehttp/psr7/src/BufferStream.php
new file mode 100644
index 0000000..2b0eb77
--- /dev/null
+++ b/vendor/guzzlehttp/psr7/src/BufferStream.php
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+<?php
+
+declare(strict_types=1);
+
+namespace GuzzleHttp\Psr7;
+
+use Psr\Http\Message\StreamInterface;
+
+/**
+ * Provides a buffer stream that can be written to to fill a buffer, and read
+ * from to remove bytes from the buffer.
+ *
+ * This stream returns a "hwm" metadata value that tells upstream consumers
+ * what the configured high water mark of the stream is, or the maximum
+ * preferred size of the buffer.
+ */
+final class BufferStream implements StreamInterface
+{
+ /** @var int */
+ private $hwm;
+
+ /** @var string */
+ private $buffer = '';
+
+ /**
+ * @param int $hwm High water mark, representing the preferred maximum
+ * buffer size. If the size of the buffer exceeds the high
+ * water mark, then calls to write will continue to succeed
+ * but will return 0 to inform writers to slow down
+ * until the buffer has been drained by reading from it.
+ */
+ public function __construct(int $hwm = 16384)
+ {
+ $this->hwm = $hwm;
+ }
+
+ public function __toString(): string
+ {
+ return $this->getContents();
+ }
+
+ public function getContents(): string
+ {
+ $buffer = $this->buffer;
+ $this->buffer = '';
+
+ return $buffer;
+ }
+
+ public function close(): void
+ {
+ $this->buffer = '';
+ }
+
+ public function detach()
+ {
+ $this->close();
+
+ return null;
+ }
+
+ public function getSize(): ?int
+ {
+ return strlen($this->buffer);
+ }
+
+ public function isReadable(): bool
+ {
+ return true;
+ }
+
+ public function isWritable(): bool
+ {
+ return true;
+ }
+
+ public function isSeekable(): bool
+ {
+ return false;
+ }
+
+ public function rewind(): void
+ {
+ $this->seek(0);
+ }
+
+ public function seek($offset, $whence = SEEK_SET): void
+ {
+ throw new \RuntimeException('Cannot seek a BufferStream');
+ }
+
+ public function eof(): bool
+ {
+ return strlen($this->buffer) === 0;
+ }
+
+ public function tell(): int
+ {
+ throw new \RuntimeException('Cannot determine the position of a BufferStream');
+ }
+
+ /**
+ * Reads data from the buffer.
+ */
+ public function read($length): string
+ {
+ $currentLength = strlen($this->buffer);
+
+ if ($length >= $currentLength) {
+ // No need to slice the buffer because we don't have enough data.
+ $result = $this->buffer;
+ $this->buffer = '';
+ } else {
+ // Slice up the result to provide a subset of the buffer.
+ $result = substr($this->buffer, 0, $length);
+ $this->buffer = substr($this->buffer, $length);
+ }
+
+ return $result;
+ }
+
+ /**
+ * Writes data to the buffer.
+ */
+ public function write($string): int
+ {
+ $this->buffer .= $string;
+
+ if (strlen($this->buffer) >= $this->hwm) {
+ return 0;
+ }
+
+ return strlen($string);
+ }
+
+ /**
+ * @return mixed
+ */
+ public function getMetadata($key = null)
+ {
+ if ($key === 'hwm') {
+ return $this->hwm;
+ }
+
+ return $key ? null : [];
+ }
+}