test: switch to new-style ASSERT_EQ macros (#4159)

Switch from old-style ASSERT macro to new-style ASSERT_EQ,... macros.

Using new-style macros makes it easier to debug test failure

test: switch to new-style ASSERT_EQ macros (#4159)

Switch from old-style ASSERT macro to new-style ASSERT_EQ,... macros.

Using new-style macros makes it easier to debug test failures

Fixes: https://github.com/libuv/libuv/issues/2974

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test: silence more valgrind warnings (#3917)

Pass the loop to MAKE_VALGRIND_HAPPY() so it's explicit on which loop
needs to be cleaned up. Since it asserts on uv_loop_close(), need to

test: silence more valgrind warnings (#3917)

Pass the loop to MAKE_VALGRIND_HAPPY() so it's explicit on which loop
needs to be cleaned up. Since it asserts on uv_loop_close(), need to
remove a couple of those that were being done before the call.

Cleanup where loop was assigned, so the entire test either uses loop or
uv_default_loop(). Not both.

Also take care of any reqs that may have been left uncleaned.

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test: fix stack-use-after-scope

In both `test-tcp-open` and `test-udp-open`.

PR-URL: https://github.com/libuv/libuv/pull/3137
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

test: fix stack-use-after-scope

In both `test-tcp-open` and `test-udp-open`.

PR-URL: https://github.com/libuv/libuv/pull/3137
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>

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test: move to ASSERT_NULL and ASSERT_NOT_NULL test macros

Moving to new style test macros will make debugging easier in case
of test failure and improve redability. This commit will repl

test: move to ASSERT_NULL and ASSERT_NOT_NULL test macros

Moving to new style test macros will make debugging easier in case
of test failure and improve redability. This commit will replace all
ASSERT macros matching the statement:
`ASSERT(identifier (== or !=) value);`
to:
`ASSERT_(NOT_)NULL(identifier);`

Refs: https://github.com/libuv/libuv/issues/2974
PR-URL: https://github.com/libuv/libuv/pull/3081
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>

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test: fix warning in test-tcp-open

PR-URL: https://github.com/libuv/libuv/pull/1946
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

unix: loop starvation on successful write complete

A file descriptor that can do multiple successful write completion
requests in a row will starve the loop because it will keep feeding

unix: loop starvation on successful write complete

A file descriptor that can do multiple successful write completion
requests in a row will starve the loop because it will keep feeding
the write_completed_queue. This fix will only process items on the
write_completed_queue once per event loop (in uv__run_pending).
Any new items on the queue will be processed in the next loop.

PR-URL: https://github.com/libuv/libuv/pull/1787
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

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unix: catch some cases of watching fd twice

Libuv does not support multiple handles watching the same file
descriptor. That condition is caught by an assert but it's detached
from t

unix: catch some cases of watching fd twice

Libuv does not support multiple handles watching the same file
descriptor. That condition is caught by an assert but it's detached
from the call site and therefore not always trivial to track down.

This commit turns cases where we can easily detect duplicates into
runtime `UV_EEXIST` errors. More work is needed to catch _all_ cases.

Partially addresses https://github.com/libuv/libuv/issues/1172.

PR-URL: https://github.com/libuv/libuv/pull/1851
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>

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win: allow bound/connected socket in uv_tcp_open()

On Unix you can pass bound and even connected socket to uv_tcp_open
and it will work as expected: you can run uv_listen or other io

win: allow bound/connected socket in uv_tcp_open()

On Unix you can pass bound and even connected socket to uv_tcp_open
and it will work as expected: you can run uv_listen or other io
functions (uv_read, uv_write) on it without problems.
On windows on the other hand the function always assumes to have clean
socket and for example uv_listen will try to bind it again, and
uv_read/write will return with errors about unreadable streams
(basically invalid internal flags).

To check if socket is already bound uv_tcp_getsockname is called which
on windows returns error when socket is unbound. To further
differentiate connected one from just bound, uv_tcp_getpeername also
returns error but when target socket is not connected.

PR-URL: https://github.com/libuv/libuv/pull/1447
Reviewed-By: Bartosz Sosnowski <bartosz@janeasystems.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

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Revert "stream: squelch ECONNRESET error if already closed"

This reverts commit 05a003a3f78d07185b7137601fe8e93561855a8d.

This commit triggerd "test-tls-hello-parser-failure" failur

Revert "stream: squelch ECONNRESET error if already closed"

This reverts commit 05a003a3f78d07185b7137601fe8e93561855a8d.

This commit triggerd "test-tls-hello-parser-failure" failure in io.js.
See the reference below for a more thorough explanation.

Refs: https://github.com/nodejs/io.js/pull/2310
PR-URL: https://github.com/libuv/libuv/pull/475
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

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stream: squelch ECONNRESET error if already closed

Add new UV__POLLRDHUP event to be emitted when EPOLLRDHUP(in Linux) or
EV_EOF(in BSD / OSX) is detected and only if UV_READABLE is set.

stream: squelch ECONNRESET error if already closed

Add new UV__POLLRDHUP event to be emitted when EPOLLRDHUP(in Linux) or
EV_EOF(in BSD / OSX) is detected and only if UV_READABLE is set.

When a read returns ECONNRESET after a UV__POLLRDHUP event, emit EOF instead
of the error.

Add tcp-squelch-connreset test. Not to be run on Windows as it returns
ECONNRESET error.

Fixes in test-poll and test-tcp-open so they pass after these changes.

PR-URL: https://github.com/libuv/libuv/pull/403
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Saúl Ibarra Corretgé <saghul@gmail.com>

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unix, win: prevent replacing fd in uv_{udp,tcp,pipe}_t

PR-URL: https://github.com/libuv/libuv/pull/400
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

include: merge uv_tcp_connect and uv_tcp_connect6

Merge uv_tcp_connect6() into uv_tcp_connect(). uv_tcp_connect() now
takes a const struct sockaddr*.

include: uv_tcp_connect{6} now takes sockaddr_in*

Passing or returning structs as values makes life hard for people that
work with libuv through a foreign function interface. Switch to a

include: uv_tcp_connect{6} now takes sockaddr_in*

Passing or returning structs as values makes life hard for people that
work with libuv through a foreign function interface. Switch to a
pointer-based approach.

Fixes #684.

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include: uv_ip[46]_addr now takes sockaddr_in*

Passing or returning structs as values makes life hard for people that
work with libuv through a foreign function interface. Switch to a

include: uv_ip[46]_addr now takes sockaddr_in*

Passing or returning structs as values makes life hard for people that
work with libuv through a foreign function interface. Switch to a
pointer-based approach.

Fixes #684.

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include: uv_read{2}_cb now takes const uv_buf_t*

Passing or returning structs as values makes life hard for people that
work with libuv through a foreign function interface. Switch to a

include: uv_read{2}_cb now takes const uv_buf_t*

Passing or returning structs as values makes life hard for people that
work with libuv through a foreign function interface. Switch to a
pointer-based approach.

Fixes #684.

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include: uv_alloc_cb now takes uv_buf_t*

Passing or returning structs as values makes life hard for people that
work with libuv through a foreign function interface. Switch to a
poin

include: uv_alloc_cb now takes uv_buf_t*

Passing or returning structs as values makes life hard for people that
work with libuv through a foreign function interface. Switch to a
pointer-based approach.

Fixes #684.

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unix, windows: return error codes directly

This commit changes the libuv API to return error codes directly rather
than storing them in a loop-global field.

A code snippet like

unix, windows: return error codes directly

This commit changes the libuv API to return error codes directly rather
than storing them in a loop-global field.

A code snippet like this one:

if (uv_foo(loop) < 0) {
uv_err_t err = uv_last_error(loop);
fprintf(stderr, "%s\n", uv_strerror(err));
}

Should be rewritten like this:

int err = uv_foo(loop);
if (err < 0)
fprintf(stderr, "%s\n", uv_strerror(err));

The rationale for this change is that it should make creating bindings
for other languages a lot easier: dealing with struct return values is
painful with most FFIs and often downright buggy.

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unix, windows: rename uv_run2 to uv_run

This changes the prototype of uv_run() from:

int uv_run(uv_loop_t* loop);

To:

int uv_run(uv_loop_t* loop, uv_run_mode m

unix, windows: rename uv_run2 to uv_run

This changes the prototype of uv_run() from:

int uv_run(uv_loop_t* loop);

To:

int uv_run(uv_loop_t* loop, uv_run_mode mode);

Where `mode` is UV_RUN_DEFAULT, UV_RUN_ONCE or UV_RUN_NOWAIT.

Fixes #683.

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test: move loop cleanup code to the individual tests

tests: fix some compile warnings on windows

unix, windows: add uv_tcp_open and uv_udp_open