Replace the throw-type-safety-to-the-wind CAST() macro with an inline
function that is hopefully harder to misuse. It should make the inotify
code slightly more legible if nothing else.
The conditional bind-to-port logic in tcp.c had an error path that
closed the socket file descriptor while it was still owned by the
uv_tcp_t handle.
Fix that by not closing the file descriptor and refactoring the code so
it is hopefully harder to get wrong in the future.
The refactoring also makes the code a little flatter, removes duplicated
code, and, arguably, is in a more idiomatic libuv style.
Fixes: https://github.com/libuv/libuv/issues/3461
Replaces: https://github.com/libuv/libuv/pull/3462
Co-authored-by: Ben Noordhuis <info@bnoordhuis.nl>
Since we are emulating this event, but are not using the pending_queue,
we need to make sure it is accounted for properly. Also DRY some of the
reset_timeout code here.
This was observed to cause a hang in certain rare cases, particularly on
M1 machines.
Do a bit of code cleanup too, since we do not need to initialize the
internal signal handling pipe if it will not be used.
File system operations may return uid and gid values, which we may want
to pretty-print. We already have the code for getting information for
the current user, so just need to add a parameter to make it exposed for
every user. We expose information about groups in a similar manner also.
The old Linux baseline was essentially RHEL 6 but that distro has been
out of support for two years now. Move to RHEL 7.
This commit also moves FreeBSD to tier 2 because it isn't actually
part of libuv's CI matrix, only Node's.
Fixes: https://github.com/libuv/libuv/issues/3822
- unpoison results from linux system call wrappers
- unpoison results from stat/fstat/lstat to pacify clang 14
(fixed in later versions)
- add MSAN build option
- turn on MSAN CI build
I split up linux.c around 2012 for no real reason and now I'm merging
it back together, again for no real reason.
I half-jest. I like the idea of having everything together because I
practically forgot linux-inotify.c existed. It also makes io_uring
experiments a little easier.
Last but not least, it removes about 100 lines of license boilerplate.
epoll.c is only used on Android and Linux after commit 5fe59726 ("sunos:
restore use of event ports") so move it back into linux-core.c
This commit removes a workaround for pre-2.6.27 kernels that don't have
the epoll_create1() system call.
This was a kludge for a bug in old versions (API level <= 16) of the
Android SDK.
The os390 port had a build dependency on the file but does not actually
use it so that too has been removed.
Now that uv__cloexec_fcntl() is simplified
(https://github.com/libuv/libuv/pull/3492), there is no benefit to
maintaining duplicate code paths for the same thing.
The GNU/Hurd platform does not define IP_ADD_SOURCE_MEMBERSHIP,
IP_DROP_SOURCE_MEMBERSHIP, MCAST_JOIN_SOURCE_GROUP and
MCAST_LEAVE_SOURCE_GROUP.
Implement a few functions for the GNU/Hurd. Specifically:
* uv_resident_set_memory (from Linux)
* uv_get_free_memory (from Linux)
* uv_get_total_memory (from Linux)
* uv_cpu_info (from cygwin)
* uv__process_title_cleanup (void)
* uv_get_constrained_memory (stub)
* Leave proctitle unimplemented on Hurd for now
* Implement hurdish uv_exepath
* Enable ifaddrs api
* Unbreak udp basics
* Unbreak futime and lutime on Hurd
This adds a workaround for an xnu kernel bug that sometimes results in
SIGCHLD not being delivered. The workaround is to use kevent to listen
for EVFILT_PROC/NOTE_EXIT events instead of relying on SIGCHLD on *BSD.
Apple rdar: FB9529664
Refs: https://github.com/libuv/libuv/pull/3257
`strnlen` was not available on Solaris 10, so provide a fallback
implementation for it.
PR-URL: https://github.com/libuv/libuv/pull/3152
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Jameson Nash <vtjnash@gmail.com>
These functions are declared with one set of conditionals in the
header, and defined with another set of conditionals in the c file.
This commit makes all decisions regarding `uv__{nonblock,cloexec}_ioctl`
depend on a boolean macro instead.
There's one function that expects `uv__nonblock_ioctl` to be defined,
so that bit of the function is also conditionally compiled.
PR-URL: https://github.com/libuv/libuv/pull/3163
Reviewed-By: Jameson Nash <vtjnash@gmail.com>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Still returns ENOSYS, until the send/recv functions are implemented.
PR-URL: https://github.com/libuv/libuv/pull/3040
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Jameson Nash <vtjnash@gmail.com>
Thread Sanitizer can't intercept syscall(SYS_close, fd) that's used
instead of close(fd); on Linux. That leads to false positives as Thread
Sanitizer thinks the descriptor is still being used by the thread.
clang defines pre- and post- syscall actions, so wrap the close
syscall() into the action macros. For gcc, use close() from glibc
instead of the syscall. This allows the thread sanitizer to intercept
closing of the file descriptor when libuv is compiled with Thread
Sanitizer.
PR-URL: https://github.com/libuv/libuv/pull/3112
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
This function will be used by `uv__fsevents_loop_init` in a future
commit to determine the initial FSEvents pthread stack size.
PR-URL: https://github.com/libuv/libuv/pull/3132
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Equivalents of `pipe` and `socketpair` for cross-platform use.
PR-URL: https://github.com/libuv/libuv/pull/2953
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Android/i386 doesn't have separate sendmmsg/recvmmsg system calls,
they're multiplexed through the socketcall system call.
(More precisely, the system calls may be present but the standard
seccomp filter rejects them, whereas socketcall is whitelisted.)
This commit removes the flags and timeout arguments from libuv's
internal system call wrappers because they're always zero and it
makes EINVAL/ENOSYS detection after a failed socketcall() easier.
Fixes: https://github.com/libuv/libuv/issues/2923
PR-URL: https://github.com/libuv/libuv/pull/2925
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Libuv was using _POSIX_PATH_MAX wrong. Bug introduced in commit b56d279b
("unix: do not require PATH_MAX to be defined") from September 2018.
_POSIX_PATH_MAX is the minimum max path size guaranteed by POSIX, not
the actual max path size of the system libuv runs on. _POSIX_PATH_MAX
is always 256, the real max is often much bigger.
This commit fixes buffer overruns when processing very long paths in
uv_fs_readlink() and uv_fs_realpath() because libuv was not allocating
enough memory to store the result.
Fixes: https://github.com/libuv/libuv/issues/2965
PR-URL: https://github.com/libuv/libuv/pull/2966
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Jameson Nash <vtjnash@gmail.com>
Store a copy of the original argv[0] to protect `uv_exepath()`
against `uv_set_process_title()` changing the value of argv[0].
Extract common code for finding a program on the current PATH.
Fixes: https://github.com/libuv/libuv/issues/2674
PR-URL: https://github.com/libuv/libuv/pull/2677
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Jameson Nash <vtjnash@gmail.com>
Make it possible to explicitly tell libuv to release any resources
it's still holding onto (memory, threads, file descriptors, etc.)
Before this commit, cleanup was performed in various destructors.
This commit centralizes the cleanup logic, enabling the addition of
`uv_library_shutdown()`, but maintains the current observable behavior
of cleaning up when libuv is unloaded by means of `dlclose(3)`.
Fixes: https://github.com/libuv/libuv/issues/2763
PR-URL: https://github.com/libuv/libuv/pull/2764
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Saúl Ibarra Corretgé <saghul@gmail.com>
This commits adds support for recvmmsg() and sendmmsg() extensions to
recvmsg() and sendmsg() that allows the caller to receive and send
multiple message from a socket using a single system call. This has
performance benefits for some applications.
Co-authored-by: Ondřej Surý <ondrej@sury.org>
Co-authored-by: Witold Kręcicki <wpk@culm.net>
PR-URL: https://github.com/libuv/libuv/pull/2532
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Saúl Ibarra Corretgé <s@saghul.net>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Assume the presence of the pipe2() system call. It was added
in FreeBSD 10 and Linux 2.6.27.
PR-URL: https://github.com/libuv/libuv/pull/2665
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Reviewed-By: Saúl Ibarra Corretgé <saghul@gmail.com>
Assume the presence of the SOCK_CLOEXEC flag. It was added in FreeBSD 10
and before Linux 2.6.32.
PR-URL: https://github.com/libuv/libuv/pull/2665
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Reviewed-By: Saúl Ibarra Corretgé <saghul@gmail.com>
Add an API for obtaining cryptographically strong random data from the
system PRNG.
Co-authored-by: Saúl Ibarra Corretgé <s@saghul.net>
Refs: https://github.com/libuv/libuv/pull/1055
PR-URL: https://github.com/libuv/libuv/pull/2347
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Make uv_cwd() do what the documentation says it did when the destination
buffer is too small: report UV_ENOBUFS and set the `size` in/out param
to the size of the path including the trailing nul byte.
Fixes: https://github.com/libuv/libuv/issues/2333
PR-URL: https://github.com/libuv/libuv/pull/2335
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Saúl Ibarra Corretgé <saghul@gmail.com>
The close() system call tests for thread cancellation first. That has
the unfortunate side effect of aborting the sytem call with EINTR
without actually closing the file descriptor when the thread is in
the "cancel" state. Work around that by calling close$NOCANCEL().
This might well qualify as an academic bug because approximately no one
uses thread cancellation but let's aim for correctness anyway.
PR-URL: https://github.com/libuv/libuv/pull/2291
Reviewed-By: Saúl Ibarra Corretgé <saghul@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
In the original PR, the ifdef conditional was reversed,
leading to the old code-path still being used.
This also reduces some of the redundancy in the conditional checks,
by factoring out the common test.
And fixes a divergence in functionality kFSEventsRenamed =>
kFSEventStreamEventFlagItemRenamed
And actually includes the part of the original PR to kqueue that enabled
watching files with fsevents!
Fixes: https://github.com/libuv/libuv/pull/387
PR-URL: https://github.com/libuv/libuv/pull/2082
Refs: https://github.com/libuv/libuv/pull/1572
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
It was introduced in commit abdc3efffe ("unix: add uv__dup()") from
January 2012 to break ground for commit e34dc13496 ("unix: implement
uv_import() and uv_export()").
Those APIs were removed not much later but I forgot to remove the
helper function as well. Better late than never, eh?
PR-URL: https://github.com/libuv/libuv/pull/2043
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Some long overdue refactoring that unifies more of the UNIX and Windows
backends.
PR-URL: https://github.com/libuv/libuv/pull/1904
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Saúl Ibarra Corretgé <saghul@gmail.com>
Merge src/unix/timer.c and src/win/timer.c into src/timer.c. This
changes the Windows implementation from a binary tree to a binary
heap for generally better performance.
PR-URL: https://github.com/libuv/libuv/pull/1882
Reviewed-By: Bartosz Sosnowski <bartosz@janeasystems.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
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>
uv__nonblock_fcntl() and uv__nonblock_ioctl() do not commute when
O_NDELAY is not equal to O_NONBLOCK. Case in point: linux/sparc32
and linux/sparc64, where O_NDELAY is O_NONBLOCK + another bit.
Libuv uses uv__nonblock_fcntl() directly sometimes so ensure that it
commutes with uv__nonblock().
Fixes: https://github.com/libuv/libuv/issues/1830
PR-URL: https://github.com/libuv/libuv/pull/1832
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
This commit preserves errno properly in the following cases:
- new_socket() was previously discarding errno in some cases,
and replacing it with the result of getsockname().
- uv__close() was not preserving errno when __MVS__ is defined.
Fixes: https://github.com/libuv/libuv/issues/1756
PR-URL: https://github.com/libuv/libuv/pull/1763
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Using -errno, -E**, and -pthread_function() can be
error prone, and breaks compatibility with some operating
systems that already negate errno's (e.g. Haiku).
This commit adds a UV__ERR() macro that ensures libuv
errors are negative.
Fixes: https://github.com/libuv/help/issues/39
PR-URL: https://github.com/libuv/libuv/pull/1687
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Reviewed-By: Fedor Indutny <fedor.indutny@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Saúl Ibarra Corretgé <saghul@gmail.com>
This commit causes NetBSD, like other BSDs, to reuse
uv__cloexec_ioctl and uv__nonblock_ioctl. This fixes
poll_nested_kqueue.
PR-URL: https://github.com/libuv/libuv/pull/1575
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Out-of-band TCP messages are used for TCP data
transmission outside (outband) the inbound TCP
data. These packets are sent with an
"urgent pointer", but previously discarded.
Additionally, when using (e)poll a POLLPRI is
triggered when an interrupt signal is received
on GPIO capable systems such as the Raspberry Pi.
PR-URL: https://github.com/libuv/libuv/pull/1040
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Saúl Ibarra Corretgé <saghul@gmail.com>
Fixes a TODO in src/threadpool.c. Updates the Windows code to drop the
unused `loop` parameter in calls to uv_req_init().
PR-URL: https://github.com/libuv/libuv/pull/1091
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Reviewed-By: Saúl Ibarra Corretgé <saghul@gmail.com>
Added the uv_loop_fork() API that must be called in a child process to
continue using an existing loop. Internally this calls a uv__io_fork
function for each supported platform, similar to the way
uv__platform_loop_init works.
After this call, existing and new IO, async and signal watchers will
contiue working as before on all platforms, as will the
threadpool (although any threads it was using are of course gone).
On Linux and BSDs that use kqueue, existing and new fsevent watchers
will also continue to work as expected. On OS X, though, directory
fsevents will not be able to use the optimized CoreFoundation path if
they had already been used in the parent process, instead falling back
to the kqueue path used on other BSDs.
Existing fsevent watchers will not function on AIX or SunOS. This
could be relatively easily fixed by someone with AIX knowledge in the
future, but SunOS will require some additional work to keep track if
the watchers.
A new test file, test/test-fork.c, was added to contain fork-related
tests to verify functionality in the child process.
PR-URL: https://github.com/libuv/libuv/pull/846
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Saúl Ibarra Corretgé <saghul@gmail.com>
