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d1a745c17c
* Implement __zipos_dup Makes ZiposHandle reference-counted by an `rc` field in a union with its freelist `next` pointer. The functions `__zipos_free` and `__zipos_keep` function as incref/decref for it. Adds `__zipos_postdup` to fix metadata on file descriptors after dup-like operations, and adds zipos support to `sys_dup_nt` + `sys_close_nt`. * Remove noop __zipos_postdup rc is never a zipos file because it is always a previously unused file descriptor. fd is never a zipos file because that case has been handled above by __zipos_fcntl. |
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| dsp | ||
| libc | ||
| net | ||
| posix | ||
| tool | ||
| BUILD.mk | ||