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                                ClientStreamImpl
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                    ClientStreamImpl
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                                Pending DATA
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                    Pending DATA
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                                2.  back up
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                    2.  ba...
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                3. readDisable(true) being called
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                on source stream
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                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: left;">
                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: nowrap;">
                                4. ceasing to consume http/2 window
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                    4. ceasin...
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                                6. eventually stopping sending data
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                                when the available http/2 window is consumed
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                    6. event...
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        <ellipse cx="325" cy="1077" rx="15" ry="15" fill="#ff3333" stroke="none" pointer-events="all"/>
        <g transform="translate(-0.5 -0.5)">
            <switch>
                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 28px; height: 1px; padding-top: 1077px; margin-left: 311px;">
                        <div data-drawio-colors="color: #FFFFFF; " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                            <div style="display: inline-block; font-size: 21px; font-family: &quot;Courier New&quot;; color: rgb(255, 255, 255); line-height: 1.2; pointer-events: all; font-weight: bold; white-space: normal; overflow-wrap: normal;">
                                2
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                        </div>
                    </div>
                </foreignObject>
                <text x="325" y="1083" fill="#FFFFFF" font-family="Courier New" font-size="21px" text-anchor="middle" font-weight="bold">
                    2
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        </g>
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        <g transform="translate(-0.5 -0.5)">
            <switch>
                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 28px; height: 1px; padding-top: 1392px; margin-left: 806px;">
                        <div data-drawio-colors="color: #FFFFFF; " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                            <div style="display: inline-block; font-size: 21px; font-family: &quot;Courier New&quot;; color: rgb(255, 255, 255); line-height: 1.2; pointer-events: all; font-weight: bold; white-space: normal; overflow-wrap: normal;">
                                1
                            </div>
                        </div>
                    </div>
                </foreignObject>
                <text x="820" y="1398" fill="#FFFFFF" font-family="Courier New" font-size="21px" text-anchor="middle" font-weight="bold">
                    1
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        </g>
        <ellipse cx="290" cy="832" rx="15" ry="15" fill="#000000" stroke="none" pointer-events="all" transform="translate(2,3)" opacity="0.25"/>
        <ellipse cx="290" cy="832" rx="15" ry="15" fill="#ff3333" stroke="none" pointer-events="all"/>
        <g transform="translate(-0.5 -0.5)">
            <switch>
                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 28px; height: 1px; padding-top: 832px; margin-left: 276px;">
                        <div data-drawio-colors="color: #FFFFFF; " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                            <div style="display: inline-block; font-size: 21px; font-family: &quot;Courier New&quot;; color: rgb(255, 255, 255); line-height: 1.2; pointer-events: all; font-weight: bold; white-space: normal; overflow-wrap: normal;">
                                3
                            </div>
                        </div>
                    </div>
                </foreignObject>
                <text x="290" y="838" fill="#FFFFFF" font-family="Courier New" font-size="21px" text-anchor="middle" font-weight="bold">
                    3
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        </g>
        <ellipse cx="1070" cy="727" rx="15" ry="15" fill="#000000" stroke="none" pointer-events="all" transform="translate(2,3)" opacity="0.25"/>
        <ellipse cx="1070" cy="727" rx="15" ry="15" fill="#ff3333" stroke="none" pointer-events="all"/>
        <g transform="translate(-0.5 -0.5)">
            <switch>
                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 28px; height: 1px; padding-top: 727px; margin-left: 1056px;">
                        <div data-drawio-colors="color: #FFFFFF; " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                            <div style="display: inline-block; font-size: 21px; font-family: &quot;Courier New&quot;; color: rgb(255, 255, 255); line-height: 1.2; pointer-events: all; font-weight: bold; white-space: normal; overflow-wrap: normal;">
                                4
                            </div>
                        </div>
                    </div>
                </foreignObject>
                <text x="1070" y="733" fill="#FFFFFF" font-family="Courier New" font-size="21px" text-anchor="middle" font-weight="bold">
                    4
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            </switch>
        </g>
        <ellipse cx="1040" cy="1485" rx="15" ry="15" fill="#000000" stroke="none" pointer-events="all" transform="translate(2,3)" opacity="0.25"/>
        <ellipse cx="1040" cy="1485" rx="15" ry="15" fill="#ff3333" stroke="none" pointer-events="all"/>
        <g transform="translate(-0.5 -0.5)">
            <switch>
                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 28px; height: 1px; padding-top: 1485px; margin-left: 1026px;">
                        <div data-drawio-colors="color: #FFFFFF; " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                            <div style="display: inline-block; font-size: 21px; font-family: &quot;Courier New&quot;; color: rgb(255, 255, 255); line-height: 1.2; pointer-events: all; font-weight: bold; white-space: normal; overflow-wrap: normal;">
                                6
                            </div>
                        </div>
                    </div>
                </foreignObject>
                <text x="1040" y="1491" fill="#FFFFFF" font-family="Courier New" font-size="21px" text-anchor="middle" font-weight="bold">
                    6
                </text>
            </switch>
        </g>
        <path d="M 212 263 L 433.76 263" fill="none" stroke="rgb(0, 0, 0)" stroke-width="2" stroke-miterlimit="10" pointer-events="stroke"/>
        <path d="M 439.76 263 L 431.76 267 L 433.76 263 L 431.76 259 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-width="2" stroke-miterlimit="10" pointer-events="all"/>
        <g fill="rgb(0, 0, 0)" font-family="Helvetica" text-anchor="middle" font-size="12px">
            <rect fill="rgb(255, 255, 255)" stroke="none" x="294" y="257" width="74" height="15" stroke-width="0"/>
            <text x="329.5" y="267.5">
                backpressure
            </text>
        </g>
        <path d="M 1023.25 767 Q 1165 767 1165 1151 Q 1165 1535 1058.24 1535" fill="none" stroke="rgb(0, 0, 0)" stroke-width="2" stroke-miterlimit="10" stroke-dasharray="6 6" pointer-events="stroke"/>
        <path d="M 1052.24 1535 L 1060.24 1531 L 1058.24 1535 L 1060.24 1539 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-width="2" stroke-miterlimit="10" pointer-events="all"/>
        <g transform="translate(-0.5 -0.5)">
            <switch>
                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
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                        <div data-drawio-colors="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
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                                5.not sending further
                                <br/>
                                flow control window updates
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                    5.not sen...
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        <path d="M 245 761 L 245 896.29" fill="none" stroke="#3399ff" stroke-width="6" stroke-miterlimit="10" pointer-events="stroke"/>
        <path d="M 245 905.29 L 239 893.29 L 245 896.29 L 251 893.29 Z" fill="#3399ff" stroke="#3399ff" stroke-width="6" stroke-miterlimit="10" pointer-events="all"/>
        <rect x="460" y="107" width="555" height="30" fill="none" stroke="none" pointer-events="all"/>
        <g transform="translate(-0.5 -0.5)">
            <switch>
                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe flex-start; width: 553px; height: 1px; padding-top: 122px; margin-left: 462px;">
                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: left;">
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                                <b>
                                    move-partial
                                </b>
                                a non-blocking buffer transfer  that will return the number of buffer bytes moved, caller is reponsible for buffering the rest.
                            </div>
                        </div>
                    </div>
                </foreignObject>
                <text x="462" y="126" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px">
                    move-partial  a non-blocking buffer transfer  that will return the number of buffer bytes mo...
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            </switch>
        </g>
        <rect x="460" y="187" width="575" height="30" fill="none" stroke="none" pointer-events="all"/>
        <g transform="translate(-0.5 -0.5)">
            <switch>
                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe flex-start; width: 573px; height: 1px; padding-top: 202px; margin-left: 462px;">
                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: left;">
                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
                                <b>
                                    move-slice
                                </b>
                                a non-blocking buffer transfer  that will transfer the entire buffer slice provided by the caller.
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                        </div>
                    </div>
                </foreignObject>
                <text x="462" y="206" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px">
                    move-slice   a non-blocking buffer transfer  that will transfer the entire buffer slice provided...
                </text>
            </switch>
        </g>
        <ellipse cx="1070" cy="1137" rx="15" ry="15" fill="#000000" stroke="none" pointer-events="all" transform="translate(2,3)" opacity="0.25"/>
        <ellipse cx="1070" cy="1137" rx="15" ry="15" fill="#ff3333" stroke="none" pointer-events="all"/>
        <g transform="translate(-0.5 -0.5)">
            <switch>
                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 28px; height: 1px; padding-top: 1137px; margin-left: 1056px;">
                        <div data-drawio-colors="color: #FFFFFF; " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                            <div style="display: inline-block; font-size: 21px; font-family: &quot;Courier New&quot;; color: rgb(255, 255, 255); line-height: 1.2; pointer-events: all; font-weight: bold; white-space: normal; overflow-wrap: normal;">
                                5
                            </div>
                        </div>
                    </div>
                </foreignObject>
                <text x="1070" y="1143" fill="#FFFFFF" font-family="Courier New" font-size="21px" text-anchor="middle" font-weight="bold">
                    5
                </text>
            </switch>
        </g>
    </g>
    <switch>
        <g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/>
        <a transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems" target="_blank">
            <text text-anchor="middle" font-size="10px" x="50%" y="100%">
                Text is not SVG - cannot display
            </text>
        </a>
    </switch>
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