THE NETWORKING TS FROM SCRATCH ## I /O Objects Robert Leahy - rleahy@rleahy.ca ISO C++ Networking is blocked on Executors (P0443) Target for Networking is currently C++23 (P0592) Used standalone Asio of composed asynchronous operations depend on those guarantees being honored transitively ## “I/O objects” provide a handle to low level asynchronous functionality within the framework of the Networking (perhaps including one or more I/O objects) is a useful pattern Service objects own completion handlers thereby breaking the potential ownership cycle Service objects are owned by an ExecutionContext

## +23 ## Object Introspection: A Revolutionary Memory Profiler for C++ Objects ## JONATHAN HASLAM & ADITYA SARWADE 20 23 October 01 - 06 ## Scene Setting “... functions then provide the basic p4_1.jpg) ## Object Introspection (Ol) Goals - Byte level memory footprint analysis for objects • Complete object type hierarchies • Dynamic allocations and containers • Optimised, production Unused container memory: Unused Sz = (C.capacity() - C.size()) * sizeof(element) • 2800 nested objects of type ‘FooBar’ were analysed. Top of the list: |Name|TypeName|Number|ElemStatSz|Length|Capac

|Loader/Dumper| 3. PostGIS Frequently Asked Questions 1. Using PostGIS: Data Management and Queries GIS Objects OpenGIS WKB and WKT PostGIS EWKB, EWKT and Canonical Forms SQL-MM Part 3 PostGIS Geography Dimensionally Extended 9 Intersection Model (DE-9IM) Loading GIS (Vector) Data Loading Data Using SQL shp2pgsql: Using the ESRI Shapefile Loader Retrieving GIS Data Using SQL to Retrieve Data Using the Dumper allows GIS (Geographic Information Systems) objects to be stored in the database. PostGIS includes support for GiST-based R-Tree spatial indexes, and functions for analysis and processing of GIS objects

part of the documentation is for you. • API Application Object Blueprint Objects o Incoming Request Data o Response Objects o Sessions o Session Interface o Test Client o Test CLI Runner might find surprising or unorthodox. For example, Flask uses thread-local objects internally so that you don’t have to pass objects around from function to function within a request in order to stay threadsafe str, not No1 ↓ localhost:5000 TypeError: cannot concatenate 'str' and 'NoneType' objects Traceback (most recent call last) File "/Users/mitsuhiko/Development/flask/flask.py", line

Soft Upgrade Pre 9.1+ or without extensions 26 3.4.2 Hard upgrade 27 # 4 Data Management 29 4.1 GIS (⊗⊗) ⊗⊗⊗⊗ 29 4.1.1 OGC Geometry 29 4.1.1.1 Point 30 4.1.1.2 LineString 30 4.1.1.3 LinearRing 12. PostGIS Functions new or enhanced in 3.0 . . . . . ## Abstract PostGIS PostgreSQL GIS( ) PostGIS GiST R-Tree GIS .  created by Refractions Research Inc, as a spatial database technology research project. Refractions is a GIS and database consulting company in Victoria, British Columbia, Canada, specializing in data integration

PostGIS Frequently Asked Questions 40 # 4 Using PostGIS: Data Management and Queries 44 4.1 GIS Objects 44 4.1.1 OpenGIS WKB and WKT 44 4.1.2 PostGIS EWKB, EWKT and Canonical Forms 45 4.1.3 SQL-MM (DE-9IM) 58 4.3.6.1 Theory 60 4.4 Loading GIS (Vector) Data 64 4.4.1 Loading Data Using SQL 64 4.4.2 shp2pgsql: Using the ESRI Shapefile Loader 64 4.5 Retrieving GIS Data 66 4.5.1 Using SQL to Retrieve allows GIS (Geographic Information Systems) objects to be stored in the database. PostGIS includes support for GiST-based R-Tree spatial indexes, and functions for analysis and processing of GIS objects

allows GIS (Geographic Information Systems) objects to be stored in the database. PostGIS includes support for GiST-based R-Tree spatial indexes, and functions for analysis and processing of GIS objects created by Refractions Research Inc, as a spatial database technology research project. Refractions is a GIS and database consulting company in Victoria, British Columbia, Canada, specializing in data integration development group plans on supporting and enhancing PostGIS to better support a range of important GIS functionality in the areas of OGC and SQL/MM spatial standards, advanced topological constructs (coverages

allows GIS (Geographic Information Systems) objects to be stored in the database. PostGIS includes support for GiST-based R-Tree spatial indexes, and functions for analysis and processing of GIS objects created by Refractions Research Inc, as a spatial database technology research project. Refractions is a GIS and database consulting company in Victoria, British Columbia, Canada, specializing in data integration development group plans on supporting and enhancing PostGIS to better support a range of important GIS functionality in the areas of OGC and SQL/MM spatial standards, advanced topological constructs (coverages

|Upgrading spatial databases| |Soft upgrade| |Hard upgrade| 1. PostGIS Usage Data Management GIS Objects PostGIS Geography Type Spatial Metadata Tables Geometry Validation Loading Spatial Data Extracting allows GIS (Geographic Information Systems) objects to be stored in the database. PostGIS includes support for GiST-based R-Tree spatial indexes, and functions for analysis and processing of GIS objects created by Refractions Research Inc, as a spatial database technology research project. Refractions is a GIS and database consulting company in Victoria, British Columbia, Canada, specializing in data integration

allows GIS (Geographic Information Systems) objects to be stored in the database. PostGIS includes support for GiST-based R-Tree spatial indexes, and functions for analysis and processing of GIS objects created by Refractions Research Inc, as a spatial database technology research project. Refractions is a GIS and database consulting company in Victoria, British Columbia, Canada, specializing in data integration development group plans on supporting and enhancing PostGIS to better support a range of important GIS functionality in the areas of OGC and SQL/MM spatial standards, advanced topological constructs (coverages