cosmopolitan/libc/nt/ws2_32/WSAGetOverlappedResult.S
Justine Tunney 1d4eb08fa1
Support non-blocking i/o across platforms
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.
2023-07-23 02:56:47 -07:00

18 lines
377 B
ArmAsm

#include "libc/nt/codegen.h"
.imp ws2_32,__imp_WSAGetOverlappedResult,WSAGetOverlappedResult,68
.text.windows
.ftrace1
__WSAGetOverlappedResult:
.ftrace2
#ifdef __x86_64__
push %rbp
mov %rsp,%rbp
mov __imp_WSAGetOverlappedResult(%rip),%rax
jmp __sysv2nt6
#elif defined(__aarch64__)
mov x0,#0
ret
#endif
.endfn __WSAGetOverlappedResult,globl
.previous