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/unit/src/
H A Dnxt_main.cdiff 2023:72edfa4fe03c Wed Dec 01 14:09:00 UTC 2021 Valentin Bartenev <vbart@nginx.com> Logging of the daemon version on startup.
H A Dnxt_lvlhsh.cdiff 72:e0cefa2185a5 Fri Jun 23 10:28:00 UTC 2017 Igor Sysoev <igor@sysoev.ru> Style and comment fixes.
H A Dnxt_sprintf.cdiff 72:e0cefa2185a5 Fri Jun 23 10:28:00 UTC 2017 Igor Sysoev <igor@sysoev.ru> Style and comment fixes.
H A Dnxt_mp.cdiff 72:e0cefa2185a5 Fri Jun 23 10:28:00 UTC 2017 Igor Sysoev <igor@sysoev.ru> Style and comment fixes.
H A Dnxt_conf.hdiff 172:72c5b69c7145 Tue Jul 18 15:00:00 UTC 2017 Valentin Bartenev <vbart@nginx.com> Configuration: reduced memory consumption of long strings.
H A Dnxt_conf.cdiff 172:72c5b69c7145 Tue Jul 18 15:00:00 UTC 2017 Valentin Bartenev <vbart@nginx.com> Configuration: reduced memory consumption of long strings.
H A Dnxt_unit.cdiff 1756:72e75ce3c99f Thu Dec 17 21:25:00 UTC 2020 Max Romanov <max.romanov@nginx.com> Libunit: fixed shared memory waiting.

The nxt_unit_ctx_port_recv() function may return the NXT_UNIT_AGAIN code, in
which case an attempt to reread the message should be made.

The issue was reproduced in load testing with response sizes 16k and up.
In the rare case of a NXT_UNIT_AGAIN result, a buffer of size -1 was processed,
which triggered a 'message too small' alert; after that, the app process was
terminated.
/unit/pkg/deb/
H A DMakefile.jsc-commondiff 1300:72dfdcef3c49 Mon Dec 02 07:25:00 UTC 2019 Andrei Belov <defan@nginx.com> Merged with the default branch.
H A DMakefilediff 1300:72dfdcef3c49 Mon Dec 02 07:25:00 UTC 2019 Andrei Belov <defan@nginx.com> Merged with the default branch.
/unit/src/wasm/
H A Dnxt_wasm.hdiff 2558:9bcb190bc8be Thu Sep 14 19:35:00 UTC 2023 Andrew Clayton <a.clayton@nginx.com> Wasm: Allow uploads larger than 4GiB.

Currently Wasm modules are limited to a 32bit address space (until at
least the memory64 work is completed). All the counters etc in the
request structure were u32's. Which matched with 32bit memory
limitation.

However there is really no need to not allow >4GiB uploads that can be
saved off to disk or some such.

To do this we just need to increase the ->content_len &
->total_content_sent members to u64's.

However because we need the request structure to have the exact same
layout on 32bit (for Wasm modules) as it does on 64bit we need to re-jig
the order of some of these members and add a four-byte padding member.

Thus the request structure now looks like on 64bit (as shown by
pahole(1))

struct nxt_wasm_request_s {
uint32_t method_off; /* 0 4 */
uint32_t method_len; /* 4 4 */
uint32_t version_off; /* 8 4 */
uint32_t version_len; /* 12 4 */
uint32_t path_off; /* 16 4 */
uint32_t path_len; /* 20 4 */
uint32_t query_off; /* 24 4 */
uint32_t query_len; /* 28 4 */
uint32_t remote_off; /* 32 4 */
uint32_t remote_len; /* 36 4 */
uint32_t local_addr_off; /* 40 4 */
uint32_t local_addr_len; /* 44 4 */
uint32_t local_port_off; /* 48 4 */
uint32_t local_port_len; /* 52 4 */
uint32_t server_name_off; /* 56 4 */
uint32_t server_name_len; /* 60 4 */
/* --- cacheline 1 boundary (64 bytes) --- */
uint64_t content_len; /* 64 8 */
uint64_t total_content_sent; /* 72 8 */
uint32_t content_sent; /* 80 4 */
uint32_t content_off; /* 84 4 */
uint32_t request_size; /* 88 4 */
uint32_t nfields; /* 92 4 */
uint32_t tls; /* 96 4 */
char __pad[4]; /* 100 4 */
nxt_wasm_http_field_t fields[]; /* 104 0 */

/* size: 104, cachelines: 2, members: 25 */
/* last cacheline: 40 bytes */
};

and the same structure (taken from unit-wasm) compiled as 32bit

struct luw_req {
u32 method_off; /* 0 4 */
u32 method_len; /* 4 4 */
u32 version_off; /* 8 4 */
u32 version_len; /* 12 4 */
u32 path_off; /* 16 4 */
u32 path_len; /* 20 4 */
u32 query_off; /* 24 4 */
u32 query_len; /* 28 4 */
u32 remote_off; /* 32 4 */
u32 remote_len; /* 36 4 */
u32 local_addr_off; /* 40 4 */
u32 local_addr_len; /* 44 4 */
u32 local_port_off; /* 48 4 */
u32 local_port_len; /* 52 4 */
u32 server_name_off; /* 56 4 */
u32 server_name_len; /* 60 4 */
/* --- cacheline 1 boundary (64 bytes) --- */
u64 content_len; /* 64 8 */
u64 total_content_sent; /* 72 8 */
u32 content_sent; /* 80 4 */
u32 content_off; /* 84 4 */
u32 request_size; /* 88 4 */
u32 nr_fields; /* 92 4 */
u32 tls; /* 96 4 */
char __pad[4]; /* 100 4 */
struct luw_hdr_field fields[]; /* 104 0 */

/* size: 104, cachelines: 2, members: 25 */
/* last cacheline: 40 bytes */
};

We can see the structures have the same layout, same size and no
padding.

We need the __pad member as otherwise I saw gcc and clang on Alpine
Linux automatically add the 'packed' attribute to the structure which
made the two structures not match.

Link: <https://github.com/WebAssembly/memory64>
Link: <https://github.com/nginx/unit-wasm>
Signed-off-by: Andrew Clayton <a.clayton@nginx.com>
diff 2558:9bcb190bc8be Thu Sep 14 19:35:00 UTC 2023 Andrew Clayton <a.clayton@nginx.com> Wasm: Allow uploads larger than 4GiB.

Currently Wasm modules are limited to a 32bit address space (until at
least the memory64 work is completed). All the counters etc in the
request structure were u32's. Which matched with 32bit memory
limitation.

However there is really no need to not allow >4GiB uploads that can be
saved off to disk or some such.

To do this we just need to increase the ->content_len &
->total_content_sent members to u64's.

However because we need the request structure to have the exact same
layout on 32bit (for Wasm modules) as it does on 64bit we need to re-jig
the order of some of these members and add a four-byte padding member.

Thus the request structure now looks like on 64bit (as shown by
pahole(1))

struct nxt_wasm_request_s {
uint32_t method_off; /* 0 4 */
uint32_t method_len; /* 4 4 */
uint32_t version_off; /* 8 4 */
uint32_t version_len; /* 12 4 */
uint32_t path_off; /* 16 4 */
uint32_t path_len; /* 20 4 */
uint32_t query_off; /* 24 4 */
uint32_t query_len; /* 28 4 */
uint32_t remote_off; /* 32 4 */
uint32_t remote_len; /* 36 4 */
uint32_t local_addr_off; /* 40 4 */
uint32_t local_addr_len; /* 44 4 */
uint32_t local_port_off; /* 48 4 */
uint32_t local_port_len; /* 52 4 */
uint32_t server_name_off; /* 56 4 */
uint32_t server_name_len; /* 60 4 */
/* --- cacheline 1 boundary (64 bytes) --- */
uint64_t content_len; /* 64 8 */
uint64_t total_content_sent; /* 72 8 */
uint32_t content_sent; /* 80 4 */
uint32_t content_off; /* 84 4 */
uint32_t request_size; /* 88 4 */
uint32_t nfields; /* 92 4 */
uint32_t tls; /* 96 4 */
char __pad[4]; /* 100 4 */
nxt_wasm_http_field_t fields[]; /* 104 0 */

/* size: 104, cachelines: 2, members: 25 */
/* last cacheline: 40 bytes */
};

and the same structure (taken from unit-wasm) compiled as 32bit

struct luw_req {
u32 method_off; /* 0 4 */
u32 method_len; /* 4 4 */
u32 version_off; /* 8 4 */
u32 version_len; /* 12 4 */
u32 path_off; /* 16 4 */
u32 path_len; /* 20 4 */
u32 query_off; /* 24 4 */
u32 query_len; /* 28 4 */
u32 remote_off; /* 32 4 */
u32 remote_len; /* 36 4 */
u32 local_addr_off; /* 40 4 */
u32 local_addr_len; /* 44 4 */
u32 local_port_off; /* 48 4 */
u32 local_port_len; /* 52 4 */
u32 server_name_off; /* 56 4 */
u32 server_name_len; /* 60 4 */
/* --- cacheline 1 boundary (64 bytes) --- */
u64 content_len; /* 64 8 */
u64 total_content_sent; /* 72 8 */
u32 content_sent; /* 80 4 */
u32 content_off; /* 84 4 */
u32 request_size; /* 88 4 */
u32 nr_fields; /* 92 4 */
u32 tls; /* 96 4 */
char __pad[4]; /* 100 4 */
struct luw_hdr_field fields[]; /* 104 0 */

/* size: 104, cachelines: 2, members: 25 */
/* last cacheline: 40 bytes */
};

We can see the structures have the same layout, same size and no
padding.

We need the __pad member as otherwise I saw gcc and clang on Alpine
Linux automatically add the 'packed' attribute to the structure which
made the two structures not match.

Link: <https://github.com/WebAssembly/memory64>
Link: <https://github.com/nginx/unit-wasm>
Signed-off-by: Andrew Clayton <a.clayton@nginx.com>
/unit/pkg/rpm/
H A Dunit.spec.indiff 2521:72b24a3ab933 Tue Aug 22 21:55:00 UTC 2023 Konstantin Pavlov <thresh@nginx.com> Packages: added pkg-config file packaging for rpm-based distros.
Debian-based distributions package it automatically.
/unit/docs/
H A Dchanges.xmldiff 1756:72e75ce3c99f Thu Dec 17 21:25:00 UTC 2020 Max Romanov <max.romanov@nginx.com> Libunit: fixed shared memory waiting.

The nxt_unit_ctx_port_recv() function may return the NXT_UNIT_AGAIN code, in
which case an attempt to reread the message should be made.

The issue was reproduced in load testing with response sizes 16k and up.
In the rare case of a NXT_UNIT_AGAIN result, a buffer of size -1 was processed,
which triggered a 'message too small' alert; after that, the app process was
terminated.
diff 1300:72dfdcef3c49 Mon Dec 02 07:25:00 UTC 2019 Andrei Belov <defan@nginx.com> Merged with the default branch.