August 2011
Intermediate to advanced
552 pages
23h 48m
English
Content preview from Advanced Mac OS X Programming: The Big Nerd Ranch GuideBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Arrays
D provides associative arrays that are similar to hashtables and dictionaries in other languages. The index into the array can be a n-tuple of values, separated by commas. arrayname[pid, probefunc, "bork"] = 23; is a valid assignment. The types of the array index must match for every assignment, and the assigned values must be uniform. You cannot nest arrays.
Example 9.9 calculates the wall-clock time it takes to execute the read() system call:
Example 9.9. readtime.d
syscall::read:entry { self->ts[pid, probefunc] = timestamp; } syscall::read:return /self->ts[pid, probefunc] != 0/ { delta = timestamp ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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