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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.
45 lines
2.4 KiB
ArmAsm
45 lines
2.4 KiB
ArmAsm
/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
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│vi: set et ft=asm ts=8 tw=8 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/macros.internal.h"
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// static_yoink this symbol for open(/zip/...) support.
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zipos = 0
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.globl zipos
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.yoink __zipos_close
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.yoink __zipos_fcntl
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.yoink __zipos_fstat
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.yoink __zipos_access
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.yoink __zipos_seek
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.yoink __zipos_open
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.yoink __zipos_parseuri
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.yoink __zipos_read
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.yoink __zipos_stat
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.yoink __zipos_notat
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.yoink __zipos_mmap
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.yoink __zipos_postdup
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.yoink __zipos_keep
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.yoink __zipos_free
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// TODO(jart): why does corruption happen when zip has no assets?
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.yoink .cosmo
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// deprecated: use __static_yoink("zipos")
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zip_uri_support = 0
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.globl zip_uri_support
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