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https://github.com/jart/cosmopolitan.git
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ad97775370
This change also introduces partial faccessat() support for zipos and makes some slight breaking changes in errno results. close() is fixed to use `EBADF` rather than `EINVAL` and we're now using `ENOTSUP` not `EOPNOTSUPP` to indicate that zipos doesn't support a system call yet
62 lines
2.1 KiB
C
62 lines
2.1 KiB
C
#ifndef COSMOPOLITAN_LIBC_ZIPOS_ZIPOS_H_
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#define COSMOPOLITAN_LIBC_ZIPOS_ZIPOS_H_
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#include "libc/intrin/nopl.internal.h"
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#include "libc/thread/tls.h"
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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struct stat;
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struct iovec;
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struct ZiposUri {
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const char *path;
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size_t len;
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};
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struct ZiposHandle {
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struct ZiposHandle *next;
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size_t size; /* byte length of `mem` */
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size_t mapsize; /* total size of this struct */
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size_t pos; /* read/write byte offset state */
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uint32_t cfile; /* central directory entry rva */
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uint8_t *mem; /* points to inflated data or uncompressed image */
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uint8_t data[]; /* uncompressed file memory */
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};
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struct Zipos {
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uint8_t *map;
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uint8_t *cdir;
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struct ZiposHandle *freelist;
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};
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void __zipos_lock(void) hidden;
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void __zipos_unlock(void) hidden;
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int __zipos_close(int) hidden;
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struct Zipos *__zipos_get(void) pureconst hidden;
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void __zipos_free(struct Zipos *, struct ZiposHandle *) hidden;
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ssize_t __zipos_parseuri(const char *, struct ZiposUri *) hidden;
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ssize_t __zipos_find(struct Zipos *, const struct ZiposUri *);
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int __zipos_open(const struct ZiposUri *, unsigned, int) hidden;
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int __zipos_access(const struct ZiposUri *, int) hidden;
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int __zipos_stat(const struct ZiposUri *, struct stat *) hidden;
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int __zipos_fstat(const struct ZiposHandle *, struct stat *) hidden;
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int __zipos_stat_impl(struct Zipos *, size_t, struct stat *) hidden;
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ssize_t __zipos_read(struct ZiposHandle *, const struct iovec *, size_t,
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ssize_t) hidden;
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ssize_t __zipos_write(struct ZiposHandle *, const struct iovec *, size_t,
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ssize_t) hidden;
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int64_t __zipos_lseek(struct ZiposHandle *, int64_t, unsigned) hidden;
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int __zipos_fcntl(int, int, uintptr_t) hidden;
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int __zipos_notat(int, const char *) hidden;
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#ifdef _NOPL0
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#define __zipos_lock() _NOPL0("__threadcalls", __zipos_lock)
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#define __zipos_unlock() _NOPL0("__threadcalls", __zipos_unlock)
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#else
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#define __zipos_lock() (__threaded ? __zipos_lock() : 0)
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#define __zipos_unlock() (__threaded ? __zipos_unlock() : 0)
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#endif
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_ZIPOS_ZIPOS_H_ */
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