diff options
Diffstat (limited to 'posix/unistd.h')
| -rw-r--r-- | posix/unistd.h | 109 |
1 files changed, 69 insertions, 40 deletions
diff --git a/posix/unistd.h b/posix/unistd.h index 135f0633b5..78f891fb42 100644 --- a/posix/unistd.h +++ b/posix/unistd.h @@ -274,8 +274,14 @@ extern __off64_t __lseek64 __P ((int __fd, __off64_t __offset, int __whence)); #ifndef __USE_FILE_OFFSET64 extern __off_t lseek __P ((int __fd, __off_t __offset, int __whence)); #else -extern __off64_t lseek __P ((int __fd, __off64_t __offset, int __whence)) - __asm__ ("lseek64"); +# ifdef __REDIRECT +extern __off64_t __REDIRECT (lseek, + __P ((int __fd, __off64_t __offset, + int __whence)), + lseek64); +# else +# define lseek lseek64 +# endif #endif #ifdef __USE_LARGEFILE64 extern __off64_t lseek64 __P ((int __fd, __off64_t __offset, int __whence)); @@ -300,40 +306,42 @@ extern ssize_t write __P ((int __fd, __const __ptr_t __buf, size_t __n)); or 0 for EOF. */ extern ssize_t __pread __P ((int __fd, __ptr_t __buf, size_t __nbytes, __off_t __offset)); -# ifndef __USE_FILE_OFFSET64 -extern ssize_t pread __P ((int __fd, __ptr_t __buf, size_t __nbytes, - __off_t __offset)); -# else -extern ssize_t pread __P ((int __fd, __ptr_t __buf, size_t __nbytes, - __off64_t __offset)) __asm__ ("pread64"); -# endif extern ssize_t __pread64 __P ((int __fd, __ptr_t __buf, size_t __nbytes, __off64_t __offset)); -# ifdef __USE_LARGEFILE64 -extern ssize_t pread64 __P ((int __fd, __ptr_t __buf, size_t __nbytes, - __off64_t __offset)); -# endif - /* Write N bytes of BUF to FD at the given position OFFSET without changing the file pointer. Return the number written, or -1. */ extern ssize_t __pwrite __P ((int __fd, __const __ptr_t __buf, size_t __n, __off_t __offset)); +extern ssize_t __pwrite64 __P ((int __fd, __const __ptr_t __buf, size_t __n, + __off64_t __offset)); + # ifndef __USE_FILE_OFFSET64 +extern ssize_t pread __P ((int __fd, __ptr_t __buf, size_t __nbytes, + __off_t __offset)); extern ssize_t pwrite __P ((int __fd, __const __ptr_t __buf, size_t __n, __off_t __offset)); # else -extern ssize_t pwrite __P ((int __fd, __const __ptr_t __buf, size_t __n, - __off64_t __offset)) __asm__ ("pwrite64"); +# ifdef __REDIRECT +extern ssize_t __REDIRECT (pread, __P ((int __fd, __ptr_t __buf, + size_t __nbytes,__off64_t __offset)), + pread64); +extern ssize_t __REDIRECT (pwrite, __P ((int __fd, __const __ptr_t __buf, + size_t __nbytes, __off64_t __offset)), + pwrite64); +# else +# define pread pread64 +# define pwrite pwrite64 +# endif # endif -extern ssize_t __pwrite64 __P ((int __fd, __const __ptr_t __buf, size_t __n, - __off64_t __offset)); + # ifdef __USE_LARGEFILE64 +extern ssize_t pread64 __P ((int __fd, __ptr_t __buf, size_t __nbytes, + __off64_t __offset)); extern ssize_t pwrite64 __P ((int __fd, __const __ptr_t __buf, size_t __n, __off64_t __offset)); # endif #endif - /* Create a one-way communication channel (pipe). If successful, two file descriptors are stored in PIPEDES; bytes written on PIPEDES[1] can be read from PIPEDES[0]. @@ -540,28 +548,31 @@ extern __pid_t getpid __P ((void)); extern __pid_t __getppid __P ((void)); extern __pid_t getppid __P ((void)); -/* Get the process group ID of the calling process. */ +/* Get the process group ID of the calling process. + This function is different on old BSD. */ +#ifndef __FAVOR_BSD extern __pid_t getpgrp __P ((void)); -/* The old BSD definition is a bit different. */ -extern __pid_t __bsd_getpgrp __P ((__pid_t __pid)); -#ifdef __FAVOR_BSD -/* When we explicitely compile BSD sources use the BSD definition of this - function. Please note that we cannot use parameters for the macro. */ -# define getpgrp __bsd_getpgrp +#else +# ifdef __REDIRECT +extern __pid_t __REDIRECT (getpgrp, __P ((__pid_t __pid)), __getpgid); +# else +# define getpgrp __getpgid +# endif #endif -/* Set the process group ID of the process matching PID to PGID. - If PID is zero, the current process's process group ID is set. - If PGID is zero, the process ID of the process is used. */ -extern int __setpgid __P ((__pid_t __pid, __pid_t __pgid)); -extern int setpgid __P ((__pid_t __pid, __pid_t __pgid)); - /* Get the process group ID of process PID. */ extern __pid_t __getpgid __P ((__pid_t __pid)); #ifdef __USE_XOPEN_EXTENDED extern __pid_t getpgid __P ((__pid_t __pid)); #endif + +/* Set the process group ID of the process matching PID to PGID. + If PID is zero, the current process's process group ID is set. + If PGID is zero, the process ID of the process is used. */ +extern int __setpgid __P ((__pid_t __pid, __pid_t __pgid)); +extern int setpgid __P ((__pid_t __pid, __pid_t __pgid)); + #if defined __USE_SVID || defined __USE_BSD || defined __USE_XOPEN_EXTENDED /* Both System V and BSD have `setpgrp' functions, but with different calling conventions. The BSD function is the same as POSIX.1 `setpgid' @@ -571,7 +582,7 @@ extern __pid_t getpgid __P ((__pid_t __pid)); New programs should always use `setpgid' instead. The default in GNU is to provide the System V function. The BSD - function is available under -D_BSD_SOURCE with -lbsd-compat. */ + function is available under -D_BSD_SOURCE. */ # ifndef __FAVOR_BSD @@ -582,7 +593,12 @@ extern int setpgrp __P ((void)); # else /* Another name for `setpgid' (above). */ -extern int setpgrp __P ((__pid_t __pid, __pid_t __pgrp)); +# ifdef __REDIRECT +extern int __REDIRECT (setpgrp, __P ((__pid_t __pid, __pid_t __pgrp)), + setpgid); +# else +# define setpgrp setpgid +# endif # endif /* Favor BSD. */ #endif /* Use SVID or BSD. */ @@ -879,8 +895,13 @@ extern int getpagesize __P ((void)); #ifndef __USE_FILE_OFFSET64 extern int truncate __P ((__const char *__file, __off_t __length)); #else -extern int truncate __P ((__const char *__file, __off64_t __length)) - __asm__ ("truncate64"); +# ifdef __REDIRECT +extern int __REDIRECT (truncate, + __P ((__const char *__file, __off64_t __length)), + truncate64); +# else +# define truncate truncate64 +# endif #endif #ifdef __USE_LARGEFILE64 extern int truncate64 __P ((__const char *__file, __off64_t __length)); @@ -891,8 +912,12 @@ extern int __ftruncate __P ((int __fd, __off_t __length)); #ifndef __USE_FILE_OFFSET64 extern int ftruncate __P ((int __fd, __off_t __length)); #else -extern int ftruncate __P ((int __fd, __off64_t __length)) - __asm__ ("ftruncate64"); +# ifdef __REDIRECT +extern int __REDIRECT (ftruncate, __P ((int __fd, __off64_t __length)), + ftruncate64); +# else +# define ftruncate ftruncate64 +# endif #endif #ifdef __USE_LARGEFILE64 extern int ftruncate64 __P ((int __fd, __off64_t __length)); @@ -959,8 +984,12 @@ extern long int syscall __P ((long int __sysno, ...)); # ifndef __USE_FILE_OFFSET64 extern int lockf __P ((int __fd, int __cmd, __off_t __len)); # else -extern int lockf __P ((int __fd, int __cmd, __off64_t __len)) - __asm__ ("lockf64"); +# ifdef __REDIRECT +extern int __REDIRECT (lockf, __P ((int __fd, int __cmd, __off64_t __len)), + lockf64); +# else +# define lockf lockf64 +# endif # endif # ifdef __USE_LARGEFILE64 extern int lockf64 __P ((int __fd, int __cmd, __off64_t __len)); |