Merging upstream version 1.46.3.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

8 files changed, 0 insertions, 12 deletions

diff --git a/diagrams/data_structures/netdata_config.svg b/diagrams/data_structures/netdata_config.svg
deleted file mode 100644
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--- a/diagrams/data_structures/netdata_config.svg
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text-anchor="middle" font-size="12px"><text x="107.5" y="25">struct registry</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-7-39-202-26-0)" font-size="12px"><text x="8.5" y="51">int enabled</text></g><path d="M 3 85.5 L 3 59.5 L 213 59.5 L 213 85.5" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 3 85.5 L 3 267.5 L 213 267.5 L 213 85.5" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 3 85.5 L 213 85.5" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g fill="#000000" font-family="Helvetica" text-anchor="middle" font-size="12px"><text x="107.5" y="77">entries counters</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-7-91-202-26-0)" font-size="12px"><text x="8.5" y="103">unsigned long long persons_count</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-7-117-202-26-0)" font-size="12px"><text x="8.5" 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max_name_length</text></g><path d="M 3 683.5 L 3 657.5 L 213 657.5 L 213 683.5" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 3 683.5 L 3 787.5 L 213 787.5 L 213 683.5" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 3 683.5 L 213 683.5" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g fill="#000000" font-family="Helvetica" text-anchor="middle" font-size="12px"><text x="107.5" y="675">path names</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-7-689-202-26-0)" font-size="12px"><text x="8.5" y="701">char *pathname</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-7-715-202-26-0)" font-size="12px"><text x="8.5" y="727">char *db_filename</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-7-741-202-26-0)" font-size="12px"><text x="8.5" y="753">char *log_filename</text></g><g fill="#000000" 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stroke-miterlimit="10" pointer-events="none"/><path d="M 893 46.5 L 893 150.5 L 1103 150.5 L 1103 46.5" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 893 46.5 L 1103 46.5" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g fill="#000000" font-family="Helvetica" text-anchor="middle" font-size="12px"><text x="997.5" y="38">DICTIONARY</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-897-52-202-26-0)" font-size="12px"><text x="898.5" y="64">avl_tree values_index</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-897-78-202-26-0)" font-size="12px"><text x="898.5" y="90">uint8_t flags</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-897-104-202-26-0)" font-size="12px"><text x="898.5" y="116">struct dictionary_stats *stats</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-897-130-202-26-0)" font-size="12px"><text x="898.5" y="142">netdata_rwlock_t *rwlock</text></g><path d="M 938 507.5 L 938 481.5 L 1108 481.5 L 1108 507.5" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 938 507.5 L 938 559.5 L 1108 559.5 L 1108 507.5" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 938 507.5 L 1108 507.5" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g fill="#000000" font-family="Helvetica" text-anchor="middle" font-size="12px"><text x="1022.5" y="499">struct avl_tree</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-942-513-162-26-0)" font-size="12px"><text x="943.5" y="525">avl *root</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-942-539-162-26-0)" font-size="12px"><text x="943.5" y="551">int (*compar)(void *a, void *b)</text></g><path d="M 1058 620.5 L 1058 594.5 L 1198 594.5 L 1198 620.5" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 1058 620.5 L 1058 672.5 L 1198 672.5 L 1198 620.5" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 1058 620.5 L 1198 620.5" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g fill="#000000" font-family="Helvetica" text-anchor="middle" font-size="12px"><text x="1127.5" y="612">struct avl</text></g><path d="M 1198 634 L 1218 634 L 1218 575 L 1128 575 L 1128 588.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 1128 593.88 L 1124.5 586.88 L 1128 588.63 L 1131.5 586.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1062-626-132-26-0)" font-size="12px"><text x="1063.5" y="638">struct avl *avl_link[2]</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1062-652-132-26-0)" font-size="12px"><text x="1063.5" y="664">signed char 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clip-path="url(#mx-clip-7-438-242-26-0)" font-size="12px"><text x="8.5" y="450.5">RRDCALCTEMPLATE *templates</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-7-464-242-26-0)" font-size="12px"><text x="8.5" y="476.5">RRDSET *rrdset_root</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-7-490-242-26-0)" font-size="12px"><text x="8.5" y="502.5">netdata_rwlock_t rrdhost_rwlock</text></g><path d="M 3 537 L 3 511 L 253 511 L 253 537" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 3 537 L 3 667 L 253 667 L 253 537" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 3 537 L 253 537" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g fill="#000000" font-family="Helvetica" text-anchor="middle" font-size="12px"><text x="127.5" y="528.5">... indexes</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-7-542-242-26-0)" font-size="12px"><text x="8.5" y="554.5">avl_tree_lock rrdset_root_index</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-7-568-242-26-0)" font-size="12px"><text x="8.5" y="580.5">avl_tree_lock rrdset_root_index_name</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-7-594-242-26-0)" font-size="12px"><text x="8.5" y="606.5">avl_tree_lock rrdfamily_root_index</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-7-620-242-26-0)" font-size="12px"><text x="8.5" y="632.5">avl_tree_lock rrdvar_root_index</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-7-646-242-26-0)" font-size="12px"><text x="8.5" y="658.5">struct rrdhost *next</text></g><path d="M 253 654 L 273 654 L 273 631 C 276.9 631 276.9 625 273 625 L 273 625 L 273 605 C 276.9 605 276.9 599 273 599 L 273 599 L 273 553 C 276.9 553 276.9 547 273 547 L 273 547 L 273 127 L 128 127 L 128 140.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 128 145.88 L 124.5 138.88 L 128 140.63 L 131.5 138.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 1613 472 L 1613 447 L 1783 447 L 1783 472" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 1613 472 L 1613 654 L 1783 654 L 1783 472" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 1613 472 L 1783 472" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g fill="#000000" font-family="Helvetica" text-anchor="middle" font-size="12px"><text x="1697.5" y="464">RRDVAR</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1617-477-162-26-0)" font-size="12px"><text x="1618.5" y="489.5">avl avl</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1617-503-162-26-0)" font-size="12px"><text x="1618.5" y="515.5">char *name</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1617-529-162-26-0)" font-size="12px"><text x="1618.5" y="541.5">uint32_t hash</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1617-555-162-26-0)" font-size="12px"><text x="1618.5" y="567.5">RRDVAR_TYPE type</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1617-581-162-26-0)" font-size="12px"><text x="1618.5" y="593.5">RRDVAR_OPTIONS options</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1617-607-162-26-0)" font-size="12px"><text x="1618.5" y="619.5">void *value</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1617-633-162-26-0)" font-size="12px"><text x="1618.5" y="645.5">time_t last_updated</text></g><path d="M 1313 550 L 1313 524 L 1533 524 L 1533 550" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 1313 550 L 1313 914 L 1533 914 L 1533 550" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 1313 550 L 1533 550" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g fill="#000000" font-family="Helvetica" text-anchor="middle" font-size="12px"><text x="1422.5" y="541.5">RRDSETVAR</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1317-555-212-26-0)" font-size="12px"><text x="1318.5" y="567.5">char *variable</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1317-581-212-26-0)" font-size="12px"><text x="1318.5" y="593.5">uint32_t hash</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1317-607-212-26-0)" font-size="12px"><text x="1318.5" y="619.5">char *key_fullid</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1317-633-212-26-0)" font-size="12px"><text x="1318.5" y="645.5">char *key_fullname</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1317-659-212-26-0)" font-size="12px"><text x="1318.5" y="671.5">RRDVAR_TYPE type</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1317-685-212-26-0)" font-size="12px"><text x="1318.5" y="697.5">void *value</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1317-711-212-26-0)" font-size="12px"><text x="1318.5" y="723.5">RRDVAR_OPTIONS options</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1317-737-212-26-0)" font-size="12px"><text x="1318.5" y="749.5">RRDVAR *var_local</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1317-763-212-26-0)" font-size="12px"><text x="1318.5" y="775.5">RRDVAR *var_family</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1317-789-212-26-0)" font-size="12px"><text x="1318.5" y="801.5">RRDVAR *var_host</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1317-815-212-26-0)" font-size="12px"><text x="1318.5" y="827.5">RRDVAR *var_family_name</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1317-841-212-26-0)" font-size="12px"><text x="1318.5" y="853.5">RRDVAR *var_host_name</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1317-867-212-26-0)" font-size="12px"><text x="1318.5" y="879.5">struct rrdset *rrdset</text></g><path d="M 1533 901 L 1553 901 L 1553 504 L 1423 504 L 1423 517.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 1423 522.88 L 1419.5 515.88 L 1423 517.63 L 1426.5 515.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1317-893-212-26-0)" font-size="12px"><text x="1318.5" y="905.5">struct rrdsetvar *next</text></g><path d="M 963 725 L 963 699 L 1243 699 L 1243 725" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 963 725 L 963 1375 L 1243 1375 L 1243 725" 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font-size="12px"><text x="968.5" y="1002.5">RRDVAR_TYPE type</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-967-1016-272-26-0)" font-size="12px"><text x="968.5" y="1028.5">void *value</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-967-1042-272-26-0)" font-size="12px"><text x="968.5" y="1054.5">RRDVAR_OPTIONS options</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-967-1068-272-26-0)" font-size="12px"><text x="968.5" y="1080.5">RRDVAR *var_local_id</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-967-1094-272-26-0)" font-size="12px"><text x="968.5" y="1106.5">RRDVAR *var_local_name</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-967-1120-272-26-0)" font-size="12px"><text x="968.5" y="1132.5">RRDVAR *var_family_id</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-967-1146-272-26-0)" font-size="12px"><text x="968.5" y="1158.5">RRDVAR *var_family_name</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-967-1172-272-26-0)" font-size="12px"><text x="968.5" y="1184.5">RRDVAR *var_family_contextid</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-967-1198-272-26-0)" font-size="12px"><text x="968.5" y="1210.5">RRDVAR *var_family_contextname</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-967-1224-272-26-0)" font-size="12px"><text x="968.5" y="1236.5">RRDVAR *var_host_chartidid</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-967-1250-272-26-0)" font-size="12px"><text x="968.5" y="1262.5">RRDVAR *var_host_chartidname</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-967-1276-272-26-0)" font-size="12px"><text x="968.5" y="1288.5">RRDVAR *var_host_chartnameid</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-967-1302-272-26-0)" font-size="12px"><text x="968.5" y="1314.5">RRDVAR *var_host_chartnamename</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-967-1328-272-26-0)" font-size="12px"><text x="968.5" y="1340.5">struct rrddim *rrddim</text></g><path d="M 1243 1362 L 1263 1362 L 1263 679 L 1103 679 L 1103 692.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 1103 697.88 L 1099.5 690.88 L 1103 692.63 L 1106.5 690.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-967-1354-272-26-0)" font-size="12px"><text x="968.5" y="1366.5">struct rrddimvar *next</text></g><path d="M 843 881 L 903 881 L 903 679 L 1103 679 L 1103 692.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 1103 697.88 L 1099.5 690.88 L 1103 692.63 L 1106.5 690.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g 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440.63 L 1701.5 438.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g transform="translate(1174.5,355.5)"><switch><foreignObject style="overflow:visible;" pointer-events="all" width="48" height="11" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: inline-block; font-size: 11px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; vertical-align: top; white-space: nowrap; text-align: center;"><div xmlns="http://www.w3.org/1999/xhtml" style="display:inline-block;text-align:inherit;text-decoration:inherit;background-color:#ffffff;">avl tree of</div></div></foreignObject><text x="24" y="11" fill="#000000" text-anchor="middle" font-size="11px" font-family="Helvetica">avl tree of</text></switch></g><path d="M 613 283 L 613 277 L 630 277 C 630 273.1 636 273.1 636 277 L 636 277 L 703 277 L 703 92 C 706.9 92 706.9 86 703 86 L 703 86 L 703 10 L 128 10 L 128 140.63" 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stroke-miterlimit="10" pointer-events="none"/><g fill="#000000" font-family="Helvetica" text-anchor="middle" font-size="12px"><text x="172.5" y="801.5">ALARM_LOG</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-67-815-212-26-0)" font-size="12px"><text x="68.5" y="827.5">uint32_t next_log_id</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-67-841-212-26-0)" font-size="12px"><text x="68.5" y="853.5">uint32_t next_alarm_id</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-67-867-212-26-0)" font-size="12px"><text x="68.5" y="879.5">unsigned int count</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-67-893-212-26-0)" font-size="12px"><text x="68.5" y="905.5">unsigned int max</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-67-919-212-26-0)" font-size="12px"><text x="68.5" y="931.5">ALARM_ENTRY *alarms</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-67-945-212-26-0)" font-size="12px"><text x="68.5" y="957.5">netdata_rwlock_t alarm_log_rwlock</text></g><path d="M 283 927 L 413 927 L 413 1030.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 413 1035.88 L 409.5 1028.88 L 413 1030.63 L 416.5 1028.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g transform="translate(374.5,921.5)"><switch><foreignObject style="overflow:visible;" pointer-events="all" width="57" height="11" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: inline-block; font-size: 11px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; vertical-align: top; white-space: nowrap; text-align: center;"><div xmlns="http://www.w3.org/1999/xhtml" style="display:inline-block;text-align:inherit;text-decoration:inherit;background-color:#ffffff;">linked list of</div></div></foreignObject><text x="29" y="11" fill="#000000" text-anchor="middle" font-size="11px" font-family="Helvetica">linked list of</text></switch></g><path d="M 343 1063 L 343 1037 L 483 1037 L 483 1063" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 343 1063 L 343 1115 L 483 1115 L 483 1063" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 343 1063 L 483 1063" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g fill="#000000" font-family="Helvetica" text-anchor="middle" font-size="12px"><text x="412.5" y="1054.5">ALARM_ENTRY *</text></g><path d="M 483 1102 L 503 1102 L 503 1017 L 413 1017 L 413 1030.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 413 1035.88 L 409.5 1028.88 L 413 1030.63 L 416.5 1028.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-347-1068-132-26-0)" font-size="12px"><text x="348.5" y="1080.5">...</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-347-1094-132-26-0)" font-size="12px"><text x="348.5" y="1106.5">struct alarm_entry *next</text></g><path d="M 253 342 L 270 342 C 270 338.1 276 338.1 276 342 L 276 342 L 305 342 C 305 338.1 311 338.1 311 342 L 311 342 L 333 342 L 333 599 C 336.9 599 336.9 605 333 605 L 333 605 L 333 625 C 336.9 625 336.9 631 333 631 L 333 631 L 333 710 L 173 710 L 173 777.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 173 782.88 L 169.5 775.88 L 173 777.63 L 176.5 775.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 33 1086 L 33 1060 L 253 1060 L 253 1086" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 33 1086 L 33 1424 L 253 1424 L 253 1086" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 33 1086 L 253 1086" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g fill="#000000" font-family="Helvetica" text-anchor="middle" font-size="12px"><text x="142.5" y="1077.5">RRDCALC</text></g><path d="M 33 1112 L 33 1086 L 253 1086 L 253 1112" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 33 1112 L 253 1112" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g fill="#000000" font-family="Helvetica" text-anchor="middle" font-size="12px"><text x="142.5" y="1102.5">...</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-37-1117-212-26-0)" font-size="12px"><text x="38.5" y="1129.5">EVAL_EXPRESSION *calculation</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-37-1143-212-26-0)" font-size="12px"><text x="38.5" y="1155.5">EVAL_EXPRESSION *warning</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-37-1169-212-26-0)" font-size="12px"><text x="38.5" y="1181.5">EVAL_EXPRESSION *critical</text></g><path d="M 33 1216 L 33 1190 L 253 1190 L 253 1216" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 33 1216 L 253 1216" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g fill="#000000" font-family="Helvetica" text-anchor="middle" font-size="12px"><text x="142.5" y="1206.5">...</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-37-1221-212-26-0)" font-size="12px"><text x="38.5" y="1233.5">RRDVAR *local</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-37-1247-212-26-0)" font-size="12px"><text x="38.5" y="1259.5">RRDVAR *family</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-37-1273-212-26-0)" font-size="12px"><text x="38.5" y="1285.5">RRDVAR *hostid</text></g><g fill="#000000" font-family="Helvetica" 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stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 253 1385 L 273 1385 L 273 1040 L 143 1040 L 143 1053.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 143 1058.88 L 139.5 1051.88 L 143 1053.63 L 146.5 1051.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 253 1411 L 273 1411 L 273 1040 L 143 1040 L 143 1053.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 143 1058.88 L 139.5 1051.88 L 143 1053.63 L 146.5 1051.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 583 1060 L 583 1034 L 833 1034 L 833 1060" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 583 1060 L 583 1190 L 833 1190 L 833 1060" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 583 1060 L 833 1060" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g fill="#000000" font-family="Helvetica" text-anchor="middle" font-size="12px"><text x="707.5" y="1051.5">RRDCALCTEMPLATE *</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-587-1065-242-26-0)" font-size="12px"><text x="588.5" y="1077.5">...</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-587-1091-242-26-0)" font-size="12px"><text x="588.5" y="1103.5">EVAL_EXPRESSION *calculation</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-587-1117-242-26-0)" font-size="12px"><text x="588.5" y="1129.5">EVAL_EXPRESSION *warning</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-587-1143-242-26-0)" font-size="12px"><text x="588.5" y="1155.5">EVAL_EXPRESSION *critical</text></g><path d="M 833 1177 L 853 1177 L 853 1014 L 708 1014 L 708 1027.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 708 1032.88 L 704.5 1025.88 L 708 1027.63 L 711.5 1025.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-587-1169-242-26-0)" font-size="12px"><text x="588.5" y="1181.5">struct rrdcalctemplate *next</text></g><path d="M 253 290 L 270 290 C 270 286.1 276 286.1 276 290 L 276 290 L 293 290 L 293 339 C 296.9 339 296.9 345 293 345 L 293 345 L 293 547 C 296.9 547 296.9 553 293 553 L 293 553 L 293 573 C 296.9 573 296.9 579 293 579 L 293 579 L 293 599 C 296.9 599 296.9 605 293 605 L 293 605 L 293 625 C 296.9 625 296.9 631 293 631 L 293 631 L 293 682 L 143 682 L 143 1053.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 143 1058.88 L 139.5 1051.88 L 143 1053.63 L 146.5 1051.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g transform="translate(216.5,676.5)"><switch><foreignObject style="overflow:visible;" pointer-events="all" width="57" height="11" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: inline-block; font-size: 11px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; vertical-align: top; white-space: nowrap; text-align: center;"><div xmlns="http://www.w3.org/1999/xhtml" style="display:inline-block;text-align:inherit;text-decoration:inherit;background-color:#ffffff;">linked list of</div></div></foreignObject><text x="29" y="11" fill="#000000" text-anchor="middle" font-size="11px" font-family="Helvetica">linked list of</text></switch></g><path d="M 253 1333 L 270 1333 C 270 1329.1 276 1329.1 276 1333 L 276 1333 L 323 1333 L 323 930 C 326.9 930 326.9 924 323 924 L 323 924 L 323 713 C 326.9 713 326.9 707 323 707 L 323 707 L 323 631 C 326.9 631 326.9 625 323 625 L 323 625 L 323 605 C 326.9 605 326.9 599 323 599 L 323 599 L 323 345 C 326.9 345 326.9 339 323 339 L 323 339 L 323 97 C 326.9 97 326.9 91 323 91 L 323 91 L 323 60 L 488 60 L 488 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stroke-miterlimit="10" pointer-events="none"/><g transform="translate(392.5,794.5)"><switch><foreignObject style="overflow:visible;" pointer-events="all" width="57" height="11" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: inline-block; font-size: 11px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; vertical-align: top; white-space: nowrap; text-align: center;"><div xmlns="http://www.w3.org/1999/xhtml" style="display:inline-block;text-align:inherit;text-decoration:inherit;background-color:#ffffff;">linked list of</div></div></foreignObject><text x="29" y="11" fill="#000000" text-anchor="middle" font-size="11px" font-family="Helvetica">linked list of</text></switch></g><path d="M 373 1275 L 373 1249 L 543 1249 L 543 1275" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 373 1275 L 373 1561 L 543 1561 L 543 1275" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 373 1275 L 543 1275" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g fill="#000000" font-family="Helvetica" text-anchor="middle" font-size="12px"><text x="457.5" y="1266.5">EVAL_EXPRESSION</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-377-1280-162-26-0)" font-size="12px"><text x="378.5" y="1292.5">const char *source</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-377-1306-162-26-0)" font-size="12px"><text x="378.5" y="1318.5">const char *parsed_as</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-377-1332-162-26-0)" font-size="12px"><text x="378.5" y="1344.5">RRDCALC_STATUS *status</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-377-1358-162-26-0)" font-size="12px"><text x="378.5" y="1370.5">calculated_number *this</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-377-1384-162-26-0)" font-size="12px"><text x="378.5" y="1396.5">time_t *after</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-377-1410-162-26-0)" font-size="12px"><text x="378.5" y="1422.5">time_t *before</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-377-1436-162-26-0)" font-size="12px"><text x="378.5" y="1448.5">calculated_number result</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-377-1462-162-26-0)" font-size="12px"><text x="378.5" y="1474.5">int error</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-377-1488-162-26-0)" font-size="12px"><text x="378.5" y="1500.5">BUFFER *error_msg</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-377-1514-162-26-0)" font-size="12px"><text x="378.5" y="1526.5">void *nodes</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-377-1540-162-26-0)" font-size="12px"><text x="378.5" y="1552.5">struct rrdcalc_rrdcalc</text></g><path d="M 603 1275 L 603 1249 L 743 1249 L 743 1275" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 603 1275 L 603 1405 L 743 1405 L 743 1275" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 603 1275 L 743 1275" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g fill="#000000" font-family="Helvetica" text-anchor="middle" font-size="12px"><text x="672.5" y="1266.5">EVAL_NODE</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-607-1280-132-26-0)" font-size="12px"><text x="608.5" y="1292.5">int id</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-607-1306-132-26-0)" font-size="12px"><text x="608.5" y="1318.5">unsigned char operator</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-607-1332-132-26-0)" font-size="12px"><text x="608.5" y="1344.5">in precedence</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-607-1358-132-26-0)" font-size="12px"><text x="608.5" y="1370.5">int count</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-607-1384-132-26-0)" font-size="12px"><text x="608.5" y="1396.5">EVAL_VALUE ops[]</text></g><path d="M 673 1457 L 673 1431 L 853 1431 L 853 1457" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 673 1457 L 673 1535 L 853 1535 L 853 1457" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 673 1457 L 853 1457" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g fill="#000000" font-family="Helvetica" text-anchor="middle" font-size="12px"><text x="762.5" y="1448.5">EVAL_VALUE</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-677-1462-172-26-0)" font-size="12px"><text x="678.5" y="1474.5">calculated_number number</text></g><g 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diff --git a/diagrams/data_structures/src/netdata_config.xml b/diagrams/data_structures/src/netdata_config.xml
deleted file mode 100644
index dbc3e4846..000000000
--- a/diagrams/data_structures/src/netdata_config.xml
+++ /dev/null
@@ -1 +0,0 @@
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diff --git a/diagrams/data_structures/src/registry.xml b/diagrams/data_structures/src/registry.xml
deleted file mode 100644
index 5274ba83c..000000000
--- a/diagrams/data_structures/src/registry.xml
+++ /dev/null
@@ -1 +0,0 @@
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diff --git a/diagrams/data_structures/src/rrd.xml b/diagrams/data_structures/src/rrd.xml
deleted file mode 100644
index 87abaebc2..000000000
--- a/diagrams/data_structures/src/rrd.xml
+++ /dev/null
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AHtDqG18CW+T3uY+ynKTUBxPE16eYEvJyfL68umnK7JqIYoib9m4B7k7qJaSwRZzYCZdDWTIzsKR3ZU/DrcjVDjjSdvHTd19ztd6ieqs+uzm6u3atvX7Z2fVpFNlbZwUmXmpRdFtpqEpVI+Td013E0Y0nC5i6VJsIBNtotbLi76FQBeOU9uVno/1/GCC4SrtEg86GqBMBwc+2O2CLZGo4kV5fmUl+/u7j+fnV2lx/GUrZai77spLpjqjsbjVQBvBNFY85eEamSsDSvsk9EX07UaHgKEDoqYwjjR9E9QQYRitKs5SWCi4BrMjAFCBAtDtp5Dwxg3aUjtQbCh4am7OwVtuNI/VLDm94jNRCRCnRdkfsBdV1pTKvBSQchAAGpe+FSARcsYZOHayAqFSBcNDUjCdbD1+T5GghJpaZYXcI1esAGPCj8i2Wzmq4uDmSh4EdQEVCNlmKXbcX/lE7R5STd6hRdXqt3ii4vmW/dPVVV2Jub83/ObhQMnZyLhr/1uejo3nLWSAqO3A7HimxZY0i2+mMNrEGNtkfN5bapViJx+LFkeCBFDSvktD2Ilg4fSI5DyyDHvd1kCCUC5cELqw6UYINWvoe6dz++Cy9P+rwmwcTQtPpqD9bucKqhsSXOb9/vLr99ve21x2MR1COgypRHE1CtvhoQ+xAJj7oopi0uEUoEyqFBDciSmXxQelge61R0HJkTUgzSiUFlyOrb0Jp7e3Fn7CT6e3vojj+JOo2TqDUEbHc2wFsph/wy4O2dih+82M/lgsS3wlvJB8pVBuHUI757exUTTAxMyCvWHcz2JjK/2LN7nwUBRSLieEJesO54tluMJE+yHGGJgq6v7pCqxiOyOGgGCrm9ugOqmpDodKqPJZSB1R1Lsh8ZwgpFAXaG1VINSNJTmp9ZREiJR3403KEFKhncHVEwo7pGtAj9IqQopFA54O6QgnakGtIiLIiAYgwLJhUjS7UTQTJKgbd4rlASVXdc2+OONoJKVNFUwUSq7qiqpqN6TGbC8pBM+Yq4IrhCOVTdcR0rtE42KnPH8NajMC3ZVbQehlndaT4Qs/o87bLzUIZ5UUQzVnig9LTuhAcMDzq/vCbfZke+zb4M9pC8gUgTewLwHo21AFcNQJu+0OzepySTGlxLS4EdCKYW4bVVq49kmWT3xBLJEnJsdsZyRyNe4QgjpyaOJeTU7IwlkNZfZ0kHRyxN0KHZHU7VHFDHOeNaCodHEopkCvk0u2O6O46kYEqCioYKOTe7g7o/mMSfk5wikUKOze6Qttfv3yAlOUUfWyDfZndQ2+v214O+SFKRUCHvZndQ2w0Ldagkq3gTg1FFqS2yhKL5tAGFnJvdAVUNDRTNp40l6NLsjqWtsKRovk6wQh7N7uy6+2K/8mg+sglioUKets6gDvcFCxVQST9CY52a1I+GbfpRbzsGjIQVR3VgmVSShvtWYIrs08VV6jBmuO6L7Cu5kk1fD9yRSbVJ+msPhEuyi8Y7NapAga0NmlG5wuaUkpUfH/tgVIkC25G0oCW5RcMdGNWl2vKBVbhk9dcAd2xUoWorLwfDJdlF450aValUp0497nvur3pFzkT+iri+nOvINqlLjSyF1u+UMyGHdytnQrrFtnIm5J2vkDMxUi1DDdmhnAldwjM0qa2O1EUx8MNfoqZfP/Dzyv7RPVq+1ALurylxkLzZpyVvk8GfP+ay7mF9zGVXAn1Dnr/1LI6959oNpcxvnvxdXOhViS1TGb9ZeVemdXx7739vl1+u7Q1DWcm85Q38RfGZN9PluI5Z1qStBr3oyvI2pFrGxZ7gBHMG2/ztsnZY23xp3v/eHu9+gzrBtt+An2BAffy3NsEkta0ZJmPHXmHXAErdv8XNfArI/etRsYFsqDdIpWqsciJp4LZjv/n1y5oCx0zpB3kNJPieVKc+5LYFDLn2c8aLdJJmy6T3U2enijEeIO93SqtC2xus0XDnG9A6TBVU/idPOFklsT7htK+6L5pwVr85I2QVqtYZobzDHu7Wgy1nvPsd+EkE2JXPrs5urt2rb1+U6UVlJ9om7VFlJ7aQDqwDq4xU6V6oXQqwhdZqsAsDqBtECwqSqzPeCMlJ1tWvzAI7mHqBF6+IKpKqyQL79kiNkMvChI9zfvYq9okZ383JY4FiarLIvj1S7ZoK05VH1WJQRI0W2bdHqiWxUKAuvt7d/OC/eJevvZT2g2Nqss6+PVJNkSFL53yE3PhR9ITPN9ZiTxXaUnGRCKMIm6y+b4/UaKnTMWseeoTedQxvPalsHa9HgAvAll51zQds1csz2T4JDZstw4pPVb6rAffIYy4QKdBYpRXYdNjFH3adBuLRCGi4OwCEXGplKCEf/2EGsmoWb8mwjDLtWIYPH3VVx/3w4QNtjipGlDkBFBste6OcUFC4XKHz5PO5RwFzGsgCJoUOyb4BF9UQ8J9X6uhrB84o5vxJnd/e+53Bbp9T5Z+D78d7C8ZgetCns6tPpD51oD418I+gfHqw+a60HWJWCwdI0YU2cgINUxXW2fzpbL51dWvDKASqUzdC+fAbNku9cBGw459epSDKx3tByuLQS9lHsTckyqw6blVxgHzSmv/izTstgJlVn0OlnJ6EK8oBstCarij2wD86uaKQVE26ohwgSEBWFKQ8QixJkw4oR6abUQv2bmAa9T05MvEHkEv2xGaEEoXSpMvJAWI4JMqYzfy1z968ox/L06SDyQGiNyTPPAefWKJYmuzp7EBRG9ubpktM8ecUk12dHSBso+rYVJgTCSYGpsl+zg4QryFhZqGfvvXYG7QBwagi1N6SwA/vI0KJQmmye7MDBF0U7opsPfdSJixB5RMJ6AuBGm3cXLmj6rLpBbMs4DTnbpitfjIhqIuY8cEjrhiuJhs3O2PVKgRxjRkZbXFUTXYUdoA4DrmTzv0VCxPqRoAGeqhHVg9Q1UZU7KeLOMrWRBJDEqxq3h1J1TpUkPzJ7qOYzp44lFAh8+5QqsahAqV3n4pdk0giSEJVy7sjqZqEamY+6t6jAyhUp7yzJI+pakq4+Ofsyr349/vNxe3t5bevQheSmi6n+8bhApFJJ5sdO1VtCwDbRy8O+cgSVwxXowEKfdXEAMls7OcECCwGrNlghbFqpKdwUrPhpFpCGtrjSQ9+fKUGdBRQOlY3/kInn7PAe3aztTvPYtrx96tzhcyeRmjpuM2bUECdR48hYdWC1Whs6UTd8OtYV94TUdVC1agaN1E9Cny8vBrXLEj9deCTiQRH1awOJ8OulPyvW/f27uzu79ucpJdmZCfBUTUaezoBYk8B9x81JcdzNRqDOlG9DBDXKJi7xBbP1mhMKtAhoWasjuO5IO3eB96ClmLcGcdoWOpkpw+CsOrDajRAdaLavlJ/xXKoAf9mbhERNyemOHOEUa1JNTJVTPNE14IpIUUhNRqwOlFNTNtiWpxtRLZHuCCyKLJmI1enqpWpIjv/6VKsBp6n0YjVqWpfqvOkMCoNQI0Gq05Vy9IGqPTapJErLvJVeEXhjji4RgNXp22BqxXZWRbHlOGMhGo2hnXaFsNa88cRVh1YjcazTtviWQusQg0mnCicJoNabWDpvbk5/+fshl97F0QUQ4WNoTJathxYczc0772VH7z1fEosTpNGfBtYazc4l1GSvvkqaUicRo33NtBUeBsnFUtDAzVptrcBB2pVCTuO5wkTL97JV8QVwdWk6d4GnKd1rsLHtgHrUpFzNF2TVnwb8KHuoLuO2QPRxdA1asm3AVcqRJeEFo3VqEFfNlj/U1oTVAO+1ZxgAjUnkHea79Xi9IdvYtShLlevN+q2jBz4w0d9fGKjrrqAy94VdxfX36/O7i561Aasmz4WI7ltVG3AgFPcENhaKusajrzqLKaOVFsCXMkGqsE1RFCPYeWwpGBK5NfDFsr/6o6tKpyUyN8NVygDrDuu9kEyS4n8GsCCSWCdkZVRkn+M+ioHfFt9dQD1Vd75Guqr6sht2j1StloHecgx2T80CBWUg9eVUDl9dRvsoCG1MSlTBbz1GFGXuoEFCJ3+M2P+1qObNzrbh5j35ZRqbd7YuF+aSdvutyY77+9hmzc6/TfQ/VN67OoTSLZWee35M9rmOy0/V+v8adz/3rF2T7ihPdz5Bg0zSPWHzqPsZ14DpoPV6oWz7dAZtWtWHjbbZHSBiV6ze5u9DuTP8hHFpyrftZkGx87bUbMJ7XjnLFRu7++etUrP2r7uSavmaf3OO+thM9MBHA2nsg429jmrv3tfbN7/fl8XZHUd1NwG2emreWJvYEpBXhT9B6KXzanp9hwpVcbWKdW4feDsmVEj3P2jPWvgeDDcdT9+wso1dpcxpjFbye8BnxcBQWn1ewwae9tE1jCrHSmtMXCkrEIqUGdKC2jrIE7M/BL1ujoioL+geIwrBISqxU4gJ8YOpvyzJ2zuelQhAoUV8IJ0iBVM0xDO6U1hrXdUWQtPFfCBdEj1sAJM79KlT1hRWCEPSIdc1fjhKln5HdUSwNMETO8d0lTjhTc0qZKABpxAjlyHOIFmoGAzsyQL3rqLDAsWyJbrEGxbVW8WxxGtuLgzDJAo1yFJ1X728e/Pny9uxIqb03RXyVsP9sESBTLluiNqqwamh0hkr/bfhdGckXaLtDCY1Ids1WzUjDRxq0wbworACqTFdYfVUQ8tuQ3467fzC4UjWX/x1t/R4ADr7wDArSXq3XHUY02hLr35ogL7xLaQlKPsvRBGPVKrnmayMOHjnDsbS5NvtGaxl5IOjOMKGXy74wodZsQHjtmM8fEipwwOJmTn7Q5mW2uiWZRR9TMcSNCy2xnJgXqOyZUk/r+/L/KVNsnH5ZygoqBCBt7uoLakGJVQSfXVrvqOG4EPVn9kqcAnkO4rxR1H3FaIQzZg+YJEeYcoD45OBAXB6pFk1U1eSvLN5dnHqzyD+8GL/Xy8CCsCK6QMd4d1R50txi+6woaY24afuH6cJJThi6QLacfd0W0xPG2ElnZg7TvwtLkDW6OhyhysuaBnB1atTzI+jaog7hff4y1QnWUmDgAL1KYl1dJLlgQTAxPaaTuDOcTnABpOS2hkFoBju52p4AyAtKxWCvqLag1U0962NrPRUClPGy8/kC7T3WKIr31wSvID5PlUJrBt6TFWkk6i+5NHGEhSbrWYdTDC1h8/wjY0hw2OsP3Hj/AAKI9icI8FSq17D+KONGZiX/390i+PJQBUVyy6Q+gffv5jHEVpPf0w9tbL62jOxB3/Dw==</diagram></mxfile>
\ No newline at end of file
diff --git a/diagrams/data_structures/src/web.xml b/diagrams/data_structures/src/web.xml
deleted file mode 100644
index dfcaa2f4a..000000000
--- a/diagrams/data_structures/src/web.xml
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timeval tv_in, tv_ready</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-7-425-322-26-0)" font-size="12px"><text x="8.5" y="437.5">char cookie1[NETDATA_WEB_REQUEST_COOKIE_SIZE+1]</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-7-451-322-26-0)" font-size="12px"><text x="8.5" y="463.5">char cookie2[NETDATA_WEB_REQUEST_COOKIE_SIZE+1]</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-7-477-322-26-0)" font-size="12px"><text x="8.5" y="489.5">char origin[NETDATA_WEB_REQUEST_ORIGIN_HEADER_SIZE+1]</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-7-503-322-26-0)" font-size="12px"><text x="8.5" y="515.5">char *user_agent</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-7-529-322-26-0)" font-size="12px"><text x="8.5" y="541.5">struct response response</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-7-555-322-26-0)" 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stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 603 132.88 L 599.5 125.88 L 603 127.63 L 606.5 125.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 473 572 L 473 546 L 733 546 L 733 572" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 473 572 L 473 754 L 733 754 L 733 572" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 473 572 L 733 572" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g fill="#000000" font-family="Helvetica" text-anchor="middle" font-size="12px"><text x="602.5" y="563.5">clients_cache</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-477-577-252-26-0)" font-size="12px"><text x="478.5" y="589.5">pid_t pid</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-477-603-252-26-0)" font-size="12px"><text x="478.5" y="615.5">struct web_client *used</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-477-629-252-26-0)" font-size="12px"><text x="478.5" y="641.5">size_t used_count</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-477-655-252-26-0)" font-size="12px"><text x="478.5" y="667.5">struct web_client *avail</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-477-681-252-26-0)" font-size="12px"><text x="478.5" y="693.5">size_t avail_count</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-477-707-252-26-0)" font-size="12px"><text x="478.5" y="719.5">size_t reused</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-477-733-252-26-0)" font-size="12px"><text x="478.5" y="745.5">size_t allocated</text></g><path d="M 733 611 L 753 611 L 753 10 L 168 10 L 168 23.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 168 28.88 L 164.5 21.88 L 168 23.63 L 171.5 21.88 Z" 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Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g transform="translate(724.5,38.5)"><switch><foreignObject style="overflow:visible;" pointer-events="all" width="57" height="11" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: inline-block; font-size: 11px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; vertical-align: top; white-space: nowrap; text-align: center;"><div xmlns="http://www.w3.org/1999/xhtml" style="display:inline-block;text-align:inherit;text-decoration:inherit;background-color:#ffffff;">linked list of</div></div></foreignObject><text x="29" y="11" fill="#000000" text-anchor="middle" font-size="11px" font-family="Helvetica">linked list of</text></switch></g><path d="M 833 108 L 833 82 L 1073 82 L 1073 108" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 833 108 L 833 394 L 1073 394 L 1073 108" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 833 108 L 1073 108" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g fill="#000000" font-family="Helvetica" text-anchor="middle" font-size="12px"><text x="952.5" y="99.5">listen_sockets</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-837-113-232-26-0)" font-size="12px"><text x="838.5" y="125.5">struct config *config</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-837-139-232-26-0)" font-size="12px"><text x="838.5" y="151.5">const char *config_section</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-837-165-232-26-0)" font-size="12px"><text x="838.5" y="177.5">const char *default_bind_to</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-837-191-232-26-0)" font-size="12px"><text x="838.5" y="203.5">uint16_t default_port</text></g><g fill="#000000" font-family="Helvetica" 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font-size="12px"><text x="838.5" y="385.5">int fds_families[MAX_LISTEN_FDS]</text></g><path d="M 1173 56 L 1173 30 L 1403 30 L 1403 56" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 1173 56 L 1173 498 L 1403 498 L 1403 56" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 1173 56 L 1403 56" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g fill="#000000" font-family="Helvetica" text-anchor="middle" font-size="12px"><text x="1287.5" y="47.5">POLLINFO</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1177-61-222-26-0)" font-size="12px"><text x="1178.5" y="73.5">POLLJOB *p</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1177-87-222-26-0)" font-size="12px"><text x="1178.5" y="99.5">size_t slot</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1177-113-222-26-0)" font-size="12px"><text x="1178.5" y="125.5">int 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clip-path="url(#mx-clip-1177-451-222-26-0)" font-size="12px"><text x="1178.5" y="463.5">void *data</text></g><path d="M 1403 485 L 1423 485 L 1423 10 L 1279 10 L 1279 22.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 1279 27.88 L 1275.5 20.88 L 1279 22.63 L 1282.5 20.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1177-477-222-26-0)" font-size="12px"><text x="1178.5" y="489.5">struct pollinfo *next</text></g><path d="M 1523 121 L 1523 95 L 1773 95 L 1773 121" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 1523 121 L 1523 615 L 1773 615 L 1773 121" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 1523 121 L 1773 121" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g fill="#000000" font-family="Helvetica" text-anchor="middle" font-size="12px"><text x="1647.5" y="112.5">POLLJOB</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1527-126-242-26-0)" font-size="12px"><text x="1528.5" y="138.5">size_t slots</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1527-152-242-26-0)" font-size="12px"><text x="1528.5" y="164.5">size_t used</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1527-178-242-26-0)" font-size="12px"><text x="1528.5" y="190.5">size_t min</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1527-204-242-26-0)" font-size="12px"><text x="1528.5" y="216.5">size_t max</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1527-230-242-26-0)" font-size="12px"><text x="1528.5" y="242.5">size_t limit</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1527-256-242-26-0)" font-size="12px"><text x="1528.5" y="268.5">time_t complete_request_timeout</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1527-282-242-26-0)" font-size="12px"><text x="1528.5" y="294.5">time_t idle_timeout</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1527-308-242-26-0)" font-size="12px"><text x="1528.5" y="320.5">time_t check_every</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1527-334-242-26-0)" font-size="12px"><text x="1528.5" y="346.5">time_t timer_milliseconds</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1527-360-242-26-0)" font-size="12px"><text x="1528.5" y="372.5">void *timer_data</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1527-386-242-26-0)" font-size="12px"><text x="1528.5" y="398.5">struct pollfd *fds</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1527-412-242-26-0)" font-size="12px"><text x="1528.5" y="424.5">struct pollinfo *inf</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1527-438-242-26-0)" font-size="12px"><text x="1528.5" y="450.5">struct pollinfo *first_free</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1527-464-242-26-0)" font-size="12px"><text x="1528.5" y="476.5">SIMPLE_PATTERN *access_list</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1527-490-242-26-0)" font-size="12px"><text x="1528.5" y="502.5">void *(*add_callback)</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1527-516-242-26-0)" font-size="12px"><text x="1528.5" y="528.5">void (*dell_callback)</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1527-542-242-26-0)" font-size="12px"><text x="1528.5" y="554.5">int (*rcv_callback)</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1527-568-242-26-0)" font-size="12px"><text x="1528.5" y="580.5">int (*snd_callback)</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1527-594-242-26-0)" font-size="12px"><text x="1528.5" y="606.5">void (*tmr_callback)</text></g><path d="M 1403 69 L 1648 69 L 1648 88.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 1648 93.88 L 1644.5 86.88 L 1648 88.63 L 1651.5 86.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 1773 420 L 1793 420 L 1793 10 L 1279 10 L 1279 22.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 1279 27.88 L 1275.5 20.88 L 1279 22.63 L 1282.5 20.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 1773 446 L 1793 446 L 1793 10 L 1278 10 L 1278 22.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 1278 27.88 L 1274.5 20.88 L 1278 22.63 L 1281.5 20.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/></svg>
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