86 lines
3.1 KiB
C
86 lines
3.1 KiB
C
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#ifndef __wasi_libc_h
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#define __wasi_libc_h
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#include <__typedef_off_t.h>
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#include <__struct_timespec.h>
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#include <unistd.h>
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#ifdef __wasilibc_use_wasip2
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#include <wasi/wasip2.h>
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct stat;
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struct timespec;
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/// Populate libc's preopen tables. This is normally done automatically
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/// just before it's needed, however if you call `__wasi_fd_renumber` or
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/// `__wasi_fd_close` directly, and you need the preopens to be accurate
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/// afterward, you should call this before doing so.
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void __wasilibc_populate_preopens(void);
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/// Register the given pre-opened file descriptor under the given path.
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#ifdef __wasilibc_use_wasip2
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int __wasilibc_register_preopened_fd(filesystem_preopens_own_descriptor_t fd,
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wasip2_string_t relprefix);
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#else
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int __wasilibc_register_preopened_fd(int fd,
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const char* prefix);
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#endif
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/// Renumber `fd` to `newfd`; similar to `dup2` but does a move rather than a
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/// copy.
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int __wasilibc_fd_renumber(int fd, int newfd)
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__attribute__((__warn_unused_result__));
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/// Like `unlinkat`, but without depending on `__wasi_path_remove_directory`.
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int __wasilibc_unlinkat(int fd, const char *path)
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__attribute__((__warn_unused_result__));
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/// An `*at` version of rmdir.
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int __wasilibc_rmdirat(int fd, const char *path)
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__attribute__((__warn_unused_result__));
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/// Like `open`, but without the varargs in the signature.
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int __wasilibc_open_nomode(const char *path, int oflag);
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/// Like `openat`, but without the varargs in the signature.
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int __wasilibc_openat_nomode(int fd, const char *path, int oflag);
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/// Return the current file offset. Like `lseek(fd, 0, SEEK_CUR)`, but without
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/// depending on `lseek`.
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off_t __wasilibc_tell(int fd)
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__attribute__((__warn_unused_result__));
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/* Non-`at` forms of various `*at` functions. */
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int __wasilibc_access(const char *pathname, int mode, int flags)
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__attribute__((__warn_unused_result__));
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int __wasilibc_stat(const char *__restrict pathname, struct stat *__restrict statbuf, int flags)
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__attribute__((__warn_unused_result__));
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int __wasilibc_utimens(const char *pathname, const struct timespec times[2], int flags)
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__attribute__((__warn_unused_result__));
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int __wasilibc_link(const char *oldpath, const char *newpath, int flags)
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__attribute__((__warn_unused_result__));
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int __wasilibc_link_oldat(int olddirfd, const char *oldpath, const char *newpath, int flags)
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__attribute__((__warn_unused_result__));
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int __wasilibc_link_newat(const char *oldpath, int newdirfd, const char *newpath, int flags)
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__attribute__((__warn_unused_result__));
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int __wasilibc_rename_oldat(int olddirfd, const char *oldpath, const char *newpath)
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__attribute__((__warn_unused_result__));
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int __wasilibc_rename_newat(const char *oldpath, int newdirfd, const char *newpath)
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__attribute__((__warn_unused_result__));
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/// Enable busywait in futex on current thread.
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void __wasilibc_enable_futex_busywait_on_current_thread(void);
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/// Fill a buffer with random bytes
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int __wasilibc_random(void* buffer, size_t len)
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__attribute__((__warn_unused_result__));
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#ifdef __cplusplus
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}
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#endif
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#endif
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