GNU/Hurd: retry EINTR returns from pipe I/O

[users/jgh/exim.git] / src / src / osfunctions.h

diff --git a/src/src/osfunctions.h b/src/src/osfunctions.h
index 14111d383b68e3cad8ca336cbd4360a10f3eae2a..8b3e14312b2e6c42f70ce7f5d73a5121c97d6b53 100644 (file)
--- a/src/src/osfunctions.h
+++ b/src/src/osfunctions.h
@@ -1,10 +1,9 @@
-/* $Cambridge: exim/src/src/osfunctions.h,v 1.5 2009/11/16 19:50:37 nm4 Exp $ */
-
 /*************************************************
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
-/* Copyright (c) University of Cambridge 1995 - 2009 */
+/* Copyright (c) University of Cambridge 1995 - 2016 */
+/* Copyright (c) The Exim Maintainers 2019 */
 /* See the file NOTICE for conditions of use and distribution. */
 
 /* Prototypes for os-specific functions. For utilities, we don't need the one
@@ -14,25 +13,41 @@ that uses a type that isn't defined for them. */
 extern ip_address_item *os_common_find_running_interfaces(void);
 #endif
 
-/* If these exist as a macro, then they're overriden away from us and we
+/* If these exist as a macro, then they're overridden away from us and we
 rely upon the system headers to provide prototype declarations for us.
 Notably, strsignal() is not in the Single Unix Specification (v3) and
 predicting constness is awkward. */
 
 #ifndef os_getloadavg
-extern int           os_getloadavg(void);
+ extern int           os_getloadavg(void);
 #endif
 #ifndef os_restarting_signal
-extern void          os_restarting_signal(int, void (*)(int));
+ extern void          os_restarting_signal(int, void (*)(int));
 #endif
 #ifndef os_non_restarting_signal
-extern void          os_non_restarting_signal(int, void (*)(int));
+ extern void          os_non_restarting_signal(int, void (*)(int));
 #endif
 #ifndef os_strexit
-extern const char   *os_strexit(int);     /* char to match os_strsignal */
+ extern const char   *os_strexit(int);     /* char to match os_strsignal */
 #endif
 #ifndef os_strsignal
-extern const char   *os_strsignal(int);   /* char to match strsignal in some OS */
+ extern const char   *os_strsignal(int);   /* char to match strsignal in some OS */
+#endif
+#ifndef os_unsetenv
+ extern int           os_unsetenv(const uschar *);
+#endif
+#ifndef os_getcwd
+ extern uschar       *os_getcwd(uschar *, size_t);
+#endif
+
+#ifdef OS_PIPE_RW_EINTR
+ extern ssize_t os_pipe_read(int fd, void * buf, size_t count);
+ extern ssize_t os_pipe_write(int fd, void * buf, size_t count);
+ extern ssize_t os_pipe_writev(int fd, const struct iovec * iov, int iovcnt);
+#else
+# define os_pipe_read(fd, buf, count) read(fd, buf, count)
+# define os_pipe_write(fd, buf, count) write(fd, buf, count)
+# define os_pipe_writev(fd, buf, count) writev(fd, buf, count)
 #endif
 
 /* End of osfunctions.h */