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

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

diff --git a/src/src/osfunctions.h b/src/src/osfunctions.h
index 4e6e9a91c9e86db3ece888d0ca13b897ffc91de3..8b3e14312b2e6c42f70ce7f5d73a5121c97d6b53 100644 (file)
--- a/src/src/osfunctions.h
+++ b/src/src/osfunctions.h
@@ -3,6 +3,7 @@
 *************************************************/
 
 /* 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
@@ -18,25 +19,35 @@ 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 *);
+ extern int           os_unsetenv(const uschar *);
 #endif
 #ifndef os_getcwd
-extern uschar       *os_getcwd(uschar *, size_t);
+ 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 */