To pass Go object references to C and back we use hack with casting to
unsafe and then to uintptr. However, we should not store such references
because Go not guaratnee it will be available by the same address.
Introducing map with integer key helps to avoid dereference stored address.
This closes#253 and #309 issues on GitHub.
By design, Unit context is created for the thread which reads messages from
the router. However, Go request handlers are called in a separate goroutine
that may be executed in a different thread. To avoid a racing condition,
access to lists of free structures in the context should be serialized. This
patch should fix random crashes in Go applications under high load.
This is related to #253 and #309 issues on GitHub.
In theory, all space characters in request target must be encoded; however,
some clients may violate the specification. For the sake of interoperability,
Unit supports unencoded space characters.
Previously, if there was a space character before the extension or arguments
parts, those parts weren't recognized. Also, quoted symbols and complex
target weren't detected after a space character.
The "nxt_http_websocket" request state, defined in "nxt_http_websocket.c",
is used in "nxt_router.c" and must be linked with external symbol declared
in "nxt_router.c".
Due to the missing "extern" keyword, building Unit with some linkers
(notably gold and LLD) caused WebSocket connections to get stuck or even
crash the router process.
Some Perl compile options affects ABI and not using them while compiling
our module resulted in non-working build.
Notably on 32-bit Debian 10, Perl is built with -D_FILE_OFFSET_BITS=64
and our module after being compiled without this option caused segmentation
faults in unexpected places.
There's no reason to parse "http_status_line"; the PHP interpreter already
does this. If the line contains a valid status code, it's assigned to
"http_response_code".
This also fixes invalid status line handling, where the nxt_int_parse()
function returned -1; it was cast to unsigned, yielding response code 65535.
All allocated blocks for lvlhash required to be aligned because lower
address bits used for various extra information. Using unaligned blocks
may cause invalid memory aceess.
This was issue found on buildbot running large configuration tests.
Now index is always initialized for create operations.
The changes in nxt_conf_op_compile() simplify adding upcoming support of
operations with arrays.
No functional changes.
