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Support non-blocking i/o across platforms

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This change introduces new tests for `O_NONBLOCK` and `SOCK_NONBLOCK` to
confirm that non-blocking i/o is now working on all supported platforms,
including Windows. For example, you can now say on Windows, MacOS, etc.:

    socket(AF_INET, SOCK_STREAM | SOCK_NONBLOCK, IPPROTO_TCP);

To create a non-blocking IPv4 TCP socket. Or you can enable non-blocking
i/o on an existing socket / pipe / etc. file descriptor by calling fcntl

    fcntl(fd, F_SETFL, fcntl(fd, F_GETFL) | O_NONBLOCK);

This functionality is polyfilled on older Linux kernels too, e.g. RHEL5.
Now that fcntl() support is much better the FIOCLEX / FIONCLEX polyfills
for ioctl() have been removed since they're ugly non-POSIX diameond APIs

This change fixes a weakness in kprintf() that was causing Windows trace
tools to frequently crash.
This commit is contained in:
Justine Tunney 2023-07-23 02:56:47 -07:00
parent 5c9e03e3e0
commit 1d4eb08fa1
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GPG key ID: BE714B4575D6E328
102 changed files with 678 additions and 331 deletions
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6
libc/runtime/inflate.c
View file

@ -58,8 +58,8 @@ int __inflate(void *out, size_t outsize, const void *in, size_t insize) {
} else {
rc = _puff(out, &outsize, in, &insize);
}
STRACE("inflate([%#.*hhs%s], %'zu, %#.*hhs%s, %'zu) → %d", MIN(40, outsize),
out, outsize > 40 ? "..." : "", outsize, MIN(40, insize), in,
insize > 40 ? "..." : "", insize, rc);
STRACE("inflate([%#.*hhs%s], %'zu, %#.*hhs%s, %'zu) → %d",
(int)MIN(40, outsize), out, outsize > 40 ? "..." : "", outsize,
(int)MIN(40, insize), in, insize > 40 ? "..." : "", insize, rc);
return rc;
}