The thread_local scope tells the compiler to create one unique version of a variable per thread. Then you can access it without worrying at all about in what thread you are. (Grammar Nazis, help me out here. I think I got that right…) It is absolutely genius for making multi threaded programming that much easier. W00t.
UPDATE: of course, every razor blade comes with its share of nicks. In this case, the expectation that different objects in the same thread would still have different thread_local members. Nope! Vet your ideas before you change to this scope too fast! Me, I’m all better now, and still love it. Good luck girls and boys.
Example to convert a field from real type to integer type:
update bracketevents set json = jsonb_set(json, '{sq_id}', ((round(cast(json->>'sq_id' as real))::text)::jsonb)); All that just remove the $*(@ decimals… how particular…
While debugging, you can use the Debug Console to print memory, including the content of strings that are clipped by default in the variables and watch windows.
View > Open View > Debug ConsoleFrom there, send gdb a command to print memory – 300 characters of a string in this example:
-exec x/300sb Query.c_str()Make sure you use a char*, not a string object – if it’s a string, just tack on .c_str().
This article is a great explanation of the details. To explain.. no, too much. To sum up:
- Go to Google Fonts and browse around and select ones you like, then click the bar in the footer to get an installation guide. This generated link is the important part:
- https://fonts.googleapis.com/css?family=Lato|Montserrat|Oswald|Quicksand|Roboto
- Because it is a “heavy thing”, I pared that list down to Montserrat for paragraph text and Quicksand for headings.
- Put one-shot loading of the link into functions.php (details on wiki); example:
function custom_add_google_fonts() {
wp_enqueue_style(
'custom-google-fonts',
'https://fonts.googleapis.com/css?family=Montserrat|Quicksand',
false
);
}
add_action( 'wp_enqueue_scripts', 'custom_add_google_fonts' );
- Specify the style in CSS (details on wiki):
body { font-family: Montserrat, sans-serif; font-weight: normal; }
#content h2 { font-family: Quicksand, sans-serif; font-weight: bold; }
