diff options
Diffstat (limited to 'hurd')
-rw-r--r-- | hurd/hurd.h | 4 | ||||
-rw-r--r-- | hurd/hurd/fd.h | 20 | ||||
-rw-r--r-- | hurd/hurd/port.h | 31 | ||||
-rw-r--r-- | hurd/hurd/signal.h | 16 | ||||
-rw-r--r-- | hurd/hurd/threadvar.h | 5 | ||||
-rw-r--r-- | hurd/hurd/userlink.h | 14 |
6 files changed, 87 insertions, 3 deletions
diff --git a/hurd/hurd.h b/hurd/hurd.h index f302e045af..36cd4b6a39 100644 --- a/hurd/hurd.h +++ b/hurd/hurd.h @@ -46,6 +46,9 @@ #define _HURD_H_EXTERN_INLINE __extern_inline #endif +int __hurd_fail (error_t err); + +#ifdef __USE_EXTERN_INLINES _HURD_H_EXTERN_INLINE int __hurd_fail (error_t err) { @@ -75,6 +78,7 @@ __hurd_fail (error_t err) errno = err; return -1; } +#endif /* Basic ports and info, initialized by startup. */ diff --git a/hurd/hurd/fd.h b/hurd/hurd/fd.h index 7b13719d9d..eaaa332050 100644 --- a/hurd/hurd/fd.h +++ b/hurd/hurd/fd.h @@ -58,6 +58,9 @@ extern struct mutex _hurd_dtable_lock; /* Locks those two variables. */ NULL. The cell is unlocked; when ready to use it, lock it and check for it being unused. */ +struct hurd_fd *_hurd_fd_get (int fd); + +#if defined __USE_EXTERN_INLINES && defined _LIBC && !defined NOT_IN_libc _HURD_FD_H_EXTERN_INLINE struct hurd_fd * _hurd_fd_get (int fd) { @@ -90,6 +93,7 @@ _hurd_fd_get (int fd) return descriptor; } +#endif /* Evaluate EXPR with the variable `descriptor' bound to a pointer to the @@ -137,6 +141,9 @@ _hurd_fd_get (int fd) /* Check if ERR should generate a signal. Returns the signal to take, or zero if none. */ +int _hurd_fd_error_signal (error_t err); + +#ifdef __USE_EXTERN_INLINES _HURD_FD_H_EXTERN_INLINE int _hurd_fd_error_signal (error_t err) { @@ -153,11 +160,15 @@ _hurd_fd_error_signal (error_t err) return 0; } } +#endif /* Handle an error from an RPC on a file descriptor's port. You should always use this function to handle errors from RPCs made on file descriptor ports. Some errors are translated into signals. */ +error_t _hurd_fd_error (int fd, error_t err); + +#ifdef __USE_EXTERN_INLINES _HURD_FD_H_EXTERN_INLINE error_t _hurd_fd_error (int fd, error_t err) { @@ -170,20 +181,28 @@ _hurd_fd_error (int fd, error_t err) } return err; } +#endif /* Handle error code ERR from an RPC on file descriptor FD's port. Set `errno' to the appropriate error code, and always return -1. */ +int __hurd_dfail (int fd, error_t err); + +#ifdef __USE_EXTERN_INLINES _HURD_FD_H_EXTERN_INLINE int __hurd_dfail (int fd, error_t err) { errno = _hurd_fd_error (fd, err); return -1; } +#endif /* Likewise, but do not raise SIGPIPE on EPIPE if flags contain MSG_NOSIGNAL. */ +int __hurd_sockfail (int fd, int flags, error_t err); + +#ifdef __USE_EXTERN_INLINES _HURD_FD_H_EXTERN_INLINE int __hurd_sockfail (int fd, int flags, error_t err) { @@ -192,6 +211,7 @@ __hurd_sockfail (int fd, int flags, error_t err) errno = err; return -1; } +#endif /* Set up *FD to have PORT its server port, doing appropriate ctty magic. Does no locking or unlocking. */ diff --git a/hurd/hurd/port.h b/hurd/hurd/port.h index 3935752f80..810bb3171a 100644 --- a/hurd/hurd/port.h +++ b/hurd/hurd/port.h @@ -60,6 +60,9 @@ struct hurd_port /* Initialize *PORT to INIT. */ +void _hurd_port_init (struct hurd_port *port, mach_port_t init); + +#if defined __USE_EXTERN_INLINES && defined _LIBC && !defined NOT_IN_libc _HURD_PORT_H_EXTERN_INLINE void _hurd_port_init (struct hurd_port *port, mach_port_t init) { @@ -67,6 +70,7 @@ _hurd_port_init (struct hurd_port *port, mach_port_t init) port->users = NULL; port->port = init; } +#endif /* Cleanup function for non-local exits. */ @@ -75,6 +79,11 @@ extern void _hurd_port_cleanup (void *, jmp_buf, int); /* Get a reference to *PORT, which is locked. Pass return value and LINK to _hurd_port_free when done. */ +mach_port_t +_hurd_port_locked_get (struct hurd_port *port, + struct hurd_userlink *link); + +#if defined __USE_EXTERN_INLINES && defined _LIBC && !defined NOT_IN_libc _HURD_PORT_H_EXTERN_INLINE mach_port_t _hurd_port_locked_get (struct hurd_port *port, struct hurd_userlink *link) @@ -90,9 +99,15 @@ _hurd_port_locked_get (struct hurd_port *port, __spin_unlock (&port->lock); return result; } +#endif /* Same, but locks PORT first. */ +mach_port_t +_hurd_port_get (struct hurd_port *port, + struct hurd_userlink *link); + +#if defined __USE_EXTERN_INLINES && defined _LIBC && !defined NOT_IN_libc _HURD_PORT_H_EXTERN_INLINE mach_port_t _hurd_port_get (struct hurd_port *port, struct hurd_userlink *link) @@ -104,10 +119,17 @@ _hurd_port_get (struct hurd_port *port, HURD_CRITICAL_END; return result; } +#endif /* Free a reference gotten with `USED_PORT = _hurd_port_get (PORT, LINK);' */ +void +_hurd_port_free (struct hurd_port *port, + struct hurd_userlink *link, + mach_port_t used_port); + +#if defined __USE_EXTERN_INLINES && defined _LIBC && !defined NOT_IN_libc _HURD_PORT_H_EXTERN_INLINE void _hurd_port_free (struct hurd_port *port, struct hurd_userlink *link, @@ -127,11 +149,15 @@ _hurd_port_free (struct hurd_port *port, if (dealloc) __mach_port_deallocate (__mach_task_self (), used_port); } +#endif /* Set *PORT's port to NEWPORT. NEWPORT's reference is consumed by PORT->port. PORT->lock is locked. */ +void _hurd_port_locked_set (struct hurd_port *port, mach_port_t newport); + +#if defined __USE_EXTERN_INLINES && defined _LIBC && !defined NOT_IN_libc _HURD_PORT_H_EXTERN_INLINE void _hurd_port_locked_set (struct hurd_port *port, mach_port_t newport) { @@ -142,9 +168,13 @@ _hurd_port_locked_set (struct hurd_port *port, mach_port_t newport) if (old != MACH_PORT_NULL) __mach_port_deallocate (__mach_task_self (), old); } +#endif /* Same, but locks PORT first. */ +void _hurd_port_set (struct hurd_port *port, mach_port_t newport); + +#if defined __USE_EXTERN_INLINES && defined _LIBC && !defined NOT_IN_libc _HURD_PORT_H_EXTERN_INLINE void _hurd_port_set (struct hurd_port *port, mach_port_t newport) { @@ -153,6 +183,7 @@ _hurd_port_set (struct hurd_port *port, mach_port_t newport) _hurd_port_locked_set (port, newport); HURD_CRITICAL_END; } +#endif #endif /* hurd/port.h */ diff --git a/hurd/hurd/signal.h b/hurd/hurd/signal.h index d4079efe00..e3e2790a98 100644 --- a/hurd/hurd/signal.h +++ b/hurd/hurd/signal.h @@ -129,15 +129,17 @@ extern struct hurd_sigstate *_hurd_self_sigstate (void) #define _HURD_SIGNAL_H_EXTERN_INLINE __extern_inline #endif +#if defined __USE_EXTERN_INLINES && defined _LIBC && !defined NOT_IN_libc _HURD_SIGNAL_H_EXTERN_INLINE struct hurd_sigstate * _hurd_self_sigstate (void) { - struct hurd_sigstate **location = + struct hurd_sigstate **location = (struct hurd_sigstate **) (void *) __hurd_threadvar_location (_HURD_THREADVAR_SIGSTATE); if (*location == NULL) *location = _hurd_thread_sigstate (__mach_thread_self ()); return *location; } +#endif /* Thread listening on our message port; also called the "signal thread". */ @@ -164,10 +166,13 @@ extern int _hurd_core_limit; interrupted lest the signal handler try to take the same lock and deadlock result. */ +void *_hurd_critical_section_lock (void); + +#if defined __USE_EXTERN_INLINES && defined _LIBC && !defined NOT_IN_libc _HURD_SIGNAL_H_EXTERN_INLINE void * _hurd_critical_section_lock (void) { - struct hurd_sigstate **location = + struct hurd_sigstate **location = (struct hurd_sigstate **) (void *) __hurd_threadvar_location (_HURD_THREADVAR_SIGSTATE); struct hurd_sigstate *ss = *location; if (ss == NULL) @@ -189,7 +194,11 @@ _hurd_critical_section_lock (void) _hurd_critical_section_unlock to unlock it. */ return ss; } +#endif +void _hurd_critical_section_unlock (void *our_lock); + +#if defined __USE_EXTERN_INLINES && defined _LIBC && !defined NOT_IN_libc _HURD_SIGNAL_H_EXTERN_INLINE void _hurd_critical_section_unlock (void *our_lock) { @@ -199,7 +208,7 @@ _hurd_critical_section_unlock (void *our_lock) else { /* It was us who acquired the critical section lock. Unlock it. */ - struct hurd_sigstate *ss = our_lock; + struct hurd_sigstate *ss = (struct hurd_sigstate *) our_lock; sigset_t pending; __spin_lock (&ss->lock); __spin_unlock (&ss->critical_section_lock); @@ -212,6 +221,7 @@ _hurd_critical_section_unlock (void *our_lock) __msg_sig_post (_hurd_msgport, 0, 0, __mach_task_self ()); } } +#endif /* Convenient macros for simple uses of critical sections. These two must be used as a pair at the same C scoping level. */ diff --git a/hurd/hurd/threadvar.h b/hurd/hurd/threadvar.h index 786db14a01..93e91ecbb5 100644 --- a/hurd/hurd/threadvar.h +++ b/hurd/hurd/threadvar.h @@ -81,6 +81,8 @@ enum __hurd_threadvar_index extern unsigned long int *__hurd_threadvar_location_from_sp (enum __hurd_threadvar_index __index, void *__sp); + +#if defined __USE_EXTERN_INLINES && defined _LIBC && !defined NOT_IN_libc _HURD_THREADVAR_H_EXTERN_INLINE unsigned long int * __hurd_threadvar_location_from_sp (enum __hurd_threadvar_index __index, void *__sp) @@ -92,6 +94,7 @@ __hurd_threadvar_location_from_sp (enum __hurd_threadvar_index __index, : (unsigned long int *) ((__stack & __hurd_threadvar_stack_mask) + __hurd_threadvar_stack_offset))[__index]; } +#endif #include <machine-sp.h> /* Define __thread_stack_pointer. */ @@ -105,12 +108,14 @@ __hurd_threadvar_location (enum __hurd_threadvar_index __index) __THROW the same stack frame by different threads. */ __attribute__ ((__const__)); +#if defined __USE_EXTERN_INLINES && defined _LIBC && !defined NOT_IN_libc _HURD_THREADVAR_H_EXTERN_INLINE unsigned long int * __hurd_threadvar_location (enum __hurd_threadvar_index __index) { return __hurd_threadvar_location_from_sp (__index, __thread_stack_pointer ()); } +#endif #endif /* hurd/threadvar.h */ diff --git a/hurd/hurd/userlink.h b/hurd/hurd/userlink.h index 391898a5a8..bd0a8c2569 100644 --- a/hurd/hurd/userlink.h +++ b/hurd/hurd/userlink.h @@ -76,6 +76,11 @@ struct hurd_userlink /* Attach LINK to the chain of users at *CHAINP. */ +void +_hurd_userlink_link (struct hurd_userlink **chainp, + struct hurd_userlink *link); + +#if defined __USE_EXTERN_INLINES && defined _LIBC && !defined NOT_IN_libc _HURD_USERLINK_H_EXTERN_INLINE void _hurd_userlink_link (struct hurd_userlink **chainp, struct hurd_userlink *link) @@ -96,11 +101,15 @@ _hurd_userlink_link (struct hurd_userlink **chainp, link->thread.prevp = thread_chainp; *thread_chainp = link; } +#endif /* Detach LINK from its chain. Returns nonzero iff this was the last user of the resource and it should be deallocated. */ +int _hurd_userlink_unlink (struct hurd_userlink *link); + +#if defined __USE_EXTERN_INLINES && defined _LIBC && !defined NOT_IN_libc _HURD_USERLINK_H_EXTERN_INLINE int _hurd_userlink_unlink (struct hurd_userlink *link) { @@ -123,6 +132,7 @@ _hurd_userlink_unlink (struct hurd_userlink *link) return dealloc; } +#endif /* Clear all users from *CHAINP. Call this when the resource *CHAINP @@ -131,6 +141,9 @@ _hurd_userlink_unlink (struct hurd_userlink *link) value is zero, someone is still using the resource and they will deallocate it when they are finished. */ +int _hurd_userlink_clear (struct hurd_userlink **chainp); + +#if defined __USE_EXTERN_INLINES && defined _LIBC && !defined NOT_IN_libc _HURD_USERLINK_H_EXTERN_INLINE int _hurd_userlink_clear (struct hurd_userlink **chainp) { @@ -143,5 +156,6 @@ _hurd_userlink_clear (struct hurd_userlink **chainp) *chainp = NULL; return 0; } +#endif #endif /* hurd/userlink.h */ |