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File Name : swoole_buffer.h

/*
  +----------------------------------------------------------------------+
  | Swoole                                                               |
  +----------------------------------------------------------------------+
  | This source file is subject to version 2.0 of the Apache license,    |
  | that is bundled with this package in the file LICENSE, and is        |
  | available through the world-wide-web at the following url:           |
  | http://www.apache.org/licenses/LICENSE-2.0.html                      |
  | If you did not receive a copy of the Apache2.0 license and are unable|
  | to obtain it through the world-wide-web, please send a note to       |
  | license@php.net so we can mail you a copy immediately.               |
  +----------------------------------------------------------------------+
  | Author: Tianfeng Han  <rango@swoole.com>                             |
  +----------------------------------------------------------------------+
*/

#pragma once

#include <queue>
#include <sys/uio.h>

namespace swoole {

struct BufferChunk {
    enum Type {
        TYPE_DATA,
        TYPE_SENDFILE,
        TYPE_CLOSE,
    };

Type type;
    uint32_t length = 0;
    uint32_t offset = 0;
    union {
        char *ptr;
        void *object;
        struct {
            uint32_t val1;
            uint32_t val2;
        } data;
    } value{};
    uint32_t size = 0;

BufferChunk(Type type, uint32_t size);
    ~BufferChunk();

void (*destroy)(BufferChunk *chunk) = nullptr;
};

class Buffer {
  private:
    // 0: donot use chunk
    uint32_t chunk_size;
    uint32_t total_length = 0;
    std::queue<BufferChunk *> queue_;

public:
    explicit Buffer(uint32_t chunk_size);
    ~Buffer();

BufferChunk *alloc(BufferChunk::Type type, uint32_t size);

BufferChunk *front() {
        return queue_.front();
    }

void pop();
    void append(const void *data, uint32_t size);
    void append(const struct iovec *iov, size_t iovcnt, off_t offset);

uint32_t length() const {
        return total_length;
    }

size_t count() const {
        return queue_.size();
    }

bool empty() const {
        return queue_.empty();
    }

static bool empty(Buffer *buffer) {
        return buffer == nullptr || buffer->queue_.empty();
    }
};

}  // namespace swoole

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Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	root/linksafe	0755	2024-05-08 06:45:35
..	dir	-	root/linksafe	0755	2024-05-08 06:45:35
swoole.h	text/x-c++	22.89 KB	root/linksafe	0644	2024-03-21 01:46:22
swoole_api.h	text/x-c	3.39 KB	root/linksafe	0644	2024-03-21 01:46:22
swoole_asm_context.h	text/x-c	1.76 KB	root/linksafe	0644	2024-03-21 01:46:22
swoole_async.h	text/x-c++	2.93 KB	root/linksafe	0644	2024-03-21 01:46:22
swoole_atomic.h	text/x-c	2.04 KB	root/linksafe	0644	2024-03-21 01:46:22
swoole_base64.h	text/x-c++	1.29 KB	root/linksafe	0644	2024-03-21 01:46:22
swoole_buffer.h	text/x-c++	2.28 KB	root/linksafe	0644	2024-03-21 01:46:23
swoole_c_api.h	text/x-c	2.16 KB	root/linksafe	0644	2024-03-21 01:46:23
swoole_channel.h	text/x-c++	2.34 KB	root/linksafe	0644	2024-03-21 01:46:23
swoole_client.h	text/x-c++	8.41 KB	root/linksafe	0644	2024-03-21 01:46:23
swoole_config.h	text/x-c	8.8 KB	root/linksafe	0644	2024-03-21 01:46:23
swoole_coroutine.h	text/x-c++	8.91 KB	root/linksafe	0644	2024-03-21 01:46:23
swoole_coroutine_c_api.h	text/x-c	4.6 KB	root/linksafe	0644	2024-03-21 01:46:23
swoole_coroutine_channel.h	text/x-c++	4.18 KB	root/linksafe	0644	2024-03-21 01:46:23
swoole_coroutine_context.h	text/x-c++	2.59 KB	root/linksafe	0644	2024-03-21 01:46:23
swoole_coroutine_socket.h	text/x-c++	18.79 KB	root/linksafe	0644	2024-03-21 01:46:24
swoole_coroutine_system.h	text/x-c++	3.48 KB	root/linksafe	0644	2024-03-21 01:46:24
swoole_dtls.h	text/x-c++	2.41 KB	root/linksafe	0644	2024-03-21 01:46:24
swoole_error.h	text/x-c++	5.81 KB	root/linksafe	0644	2024-03-21 01:46:24
swoole_file.h	text/x-c++	4.09 KB	root/linksafe	0644	2024-03-21 01:46:24
swoole_file_hook.h	text/x-c	2.58 KB	root/linksafe	0644	2024-03-21 01:46:24
swoole_hash.h	text/x-c	9.69 KB	root/linksafe	0644	2024-03-21 01:46:24
swoole_heap.h	text/x-c++	1.79 KB	root/linksafe	0644	2024-03-21 01:46:24
swoole_http.h	text/x-c++	6.94 KB	root/linksafe	0644	2024-03-21 01:46:24
swoole_http2.h	text/x-c++	8.38 KB	root/linksafe	0644	2024-03-21 01:46:25
swoole_lock.h	text/x-c++	2.64 KB	root/linksafe	0644	2024-03-21 01:46:25
swoole_log.h	text/x-c++	15.72 KB	root/linksafe	0644	2024-03-21 01:46:25
swoole_lru_cache.h	text/x-c++	3.17 KB	root/linksafe	0644	2024-03-21 01:46:25
swoole_memory.h	text/x-c++	2.75 KB	root/linksafe	0644	2024-03-21 01:46:25
swoole_message_bus.h	text/x-c++	5.53 KB	root/linksafe	0644	2024-03-21 01:46:25
swoole_mime_type.h	text/x-c++	1.44 KB	root/linksafe	0644	2024-03-21 01:46:25
swoole_mqtt.h	text/x-c++	2.18 KB	root/linksafe	0644	2024-03-21 01:46:25
swoole_msg_queue.h	text/x-c++	1.92 KB	root/linksafe	0644	2024-03-21 01:46:25
swoole_pipe.h	text/x-c++	2.64 KB	root/linksafe	0644	2024-03-21 01:46:25
swoole_process_pool.h	text/x-c++	7.82 KB	root/linksafe	0644	2024-03-21 01:46:25
swoole_protocol.h	text/x-c++	5.32 KB	root/linksafe	0644	2024-03-21 01:46:25
swoole_proxy.h	text/x-c++	2.14 KB	root/linksafe	0644	2024-03-21 01:46:26
swoole_reactor.h	text/x-c++	11.22 KB	root/linksafe	0644	2024-03-21 01:46:26
swoole_redis.h	text/x-c++	2.09 KB	root/linksafe	0644	2024-03-21 01:46:26
swoole_server.h	text/x-c++	39.1 KB	root/linksafe	0644	2024-03-21 01:46:26
swoole_signal.h	text/x-c++	1.68 KB	root/linksafe	0644	2024-03-21 01:46:26
swoole_socket.h	text/x-c++	17.82 KB	root/linksafe	0644	2024-03-21 01:46:26
swoole_socket_hook.h	text/x-c	2.23 KB	root/linksafe	0644	2024-03-21 01:46:26
swoole_ssl.h	text/x-c++	4.94 KB	root/linksafe	0644	2024-03-21 01:46:26
swoole_static_handler.h	text/x-c++	3.9 KB	root/linksafe	0644	2024-03-21 01:46:26
swoole_string.h	text/x-c++	8.06 KB	root/linksafe	0644	2024-03-21 01:46:27
swoole_table.h	text/x-c++	7.42 KB	root/linksafe	0644	2024-03-21 01:46:27
swoole_timer.h	text/x-c++	4.05 KB	root/linksafe	0644	2024-03-21 01:46:27
swoole_util.h	text/x-c++	5.58 KB	root/linksafe	0644	2024-03-21 01:46:27
swoole_version.h	text/x-c	2.25 KB	root/linksafe	0644	2024-03-21 01:46:27
swoole_websocket.h	text/x-c++	4.43 KB	root/linksafe	0644	2024-03-21 01:46:27
swoole_wheel_timer.h	text/x-c++	2.48 KB	root/linksafe	0644	2024-03-21 01:46:27