diff mbox series

[RFC,v3,1/3] bits/types[izes].h: Define new internal type: __snseconds_t

Message ID 20211208144757.37641-1-alx.manpages@gmail.com
State New
Headers show
Series [RFC,v3,1/3] bits/types[izes].h: Define new internal type: __snseconds_t | expand

Commit Message

Alejandro Colomar Dec. 8, 2021, 2:47 p.m. UTC 
Based on the existing suseconds_t type,
with the difference that __snseconds_t should be long when possible.

The timespec(3) structure uses long for tv_nsec,
except if __x86_64__ && __ILP32__,
in which case it uses long long.

Add __snseconds_t to allow simplifying the definition of struct timespec.

Link: linux-man <https://lore.kernel.org/linux-man/ec1dcc655184f6cdaae40ff8b7970b750434e4ef.1638123425.git.nabijaczleweli@nabijaczleweli.xyz/T/>
Link: glibc <https://sourceware.org/pipermail/libc-alpha/2021-December/133702.html>
Cc: наб <nabijaczleweli@nabijaczleweli.xyz>
Cc: Jakub Wilk <jwilk@jwilk.net>
Cc: Zack Weinberg <zackw@panix.com>
Cc: Stefan Puiu <stefan.puiu@gmail.com>
Cc: Michael Kerrisk (man-pages) <mtk.manpages@gmail.com>
Cc: H.J. Lu <hjl.tools@gmail.com>
Cc: Joseph Myers <joseph@codesourcery.com>
Cc: Rich Felker <dalias@libc.org>
Cc: Andreas Schwab <schwab@linux-m68k.org>
Cc: Paul Eggert <eggert@cs.ucla.edu>
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
---
 bits/typesizes.h                                 | 1 +
 posix/bits/types.h                               | 1 +
 sysdeps/mach/hurd/bits/typesizes.h               | 1 +
 sysdeps/unix/sysv/linux/alpha/bits/typesizes.h   | 1 +
 sysdeps/unix/sysv/linux/generic/bits/typesizes.h | 1 +
 sysdeps/unix/sysv/linux/s390/bits/typesizes.h    | 1 +
 sysdeps/unix/sysv/linux/sparc/bits/typesizes.h   | 1 +
 sysdeps/unix/sysv/linux/x86/bits/typesizes.h     | 1 +
 8 files changed, 8 insertions(+)
diff mbox series

Patch

diff --git a/bits/typesizes.h b/bits/typesizes.h
index 63564b2fa1..85c093fabb 100644
--- a/bits/typesizes.h
+++ b/bits/typesizes.h
@@ -51,6 +51,7 @@ 
 #define __USECONDS_T_TYPE	__U32_TYPE
 #define __SUSECONDS_T_TYPE	__SLONGWORD_TYPE
 #define __SUSECONDS64_T_TYPE	__SQUAD_TYPE
+#define __SNSECONDS_T_TYPE	__SLONGWORD_TYPE
 #define __DADDR_T_TYPE		__S32_TYPE
 #define __KEY_T_TYPE		__S32_TYPE
 #define __CLOCKID_T_TYPE	__S32_TYPE
diff --git a/posix/bits/types.h b/posix/bits/types.h
index 2dc63de5c2..c4107f1458 100644
--- a/posix/bits/types.h
+++ b/posix/bits/types.h
@@ -161,6 +161,7 @@  __STD_TYPE __TIME_T_TYPE __time_t;	/* Seconds since the Epoch.  */
 __STD_TYPE __USECONDS_T_TYPE __useconds_t; /* Count of microseconds.  */
 __STD_TYPE __SUSECONDS_T_TYPE __suseconds_t; /* Signed count of microseconds.  */
 __STD_TYPE __SUSECONDS64_T_TYPE __suseconds64_t;
+__STD_TYPE __SNSECONDS_T_TYPE __snseconds_t; /* Signed count of nanoseconds.  */
 
 __STD_TYPE __DADDR_T_TYPE __daddr_t;	/* The type of a disk address.  */
 __STD_TYPE __KEY_T_TYPE __key_t;	/* Type of an IPC key.  */
diff --git a/sysdeps/mach/hurd/bits/typesizes.h b/sysdeps/mach/hurd/bits/typesizes.h
index 36adbe09c4..558f9ee597 100644
--- a/sysdeps/mach/hurd/bits/typesizes.h
+++ b/sysdeps/mach/hurd/bits/typesizes.h
@@ -51,6 +51,7 @@ 
 #define __USECONDS_T_TYPE	__U32_TYPE
 #define __SUSECONDS_T_TYPE	__SLONGWORD_TYPE
 #define __SUSECONDS64_T_TYPE	__SQUAD_TYPE
+#define __SNSECONDS_T_TYPE	__SLONGWORD_TYPE
 #define __DADDR_T_TYPE		__S32_TYPE
 #define __KEY_T_TYPE		__S32_TYPE
 #define __CLOCKID_T_TYPE	__S32_TYPE
diff --git a/sysdeps/unix/sysv/linux/alpha/bits/typesizes.h b/sysdeps/unix/sysv/linux/alpha/bits/typesizes.h
index 9bdc925168..d17131cf25 100644
--- a/sysdeps/unix/sysv/linux/alpha/bits/typesizes.h
+++ b/sysdeps/unix/sysv/linux/alpha/bits/typesizes.h
@@ -50,6 +50,7 @@ 
 #define __USECONDS_T_TYPE	__U32_TYPE
 #define __SUSECONDS_T_TYPE	__S64_TYPE
 #define __SUSECONDS64_T_TYPE	__S64_TYPE
+#define __SNSECONDS_T_TYPE	__SLONGWORD_TYPE
 #define __DADDR_T_TYPE		__S32_TYPE
 #define __KEY_T_TYPE		__S32_TYPE
 #define __CLOCKID_T_TYPE	__S32_TYPE
diff --git a/sysdeps/unix/sysv/linux/generic/bits/typesizes.h b/sysdeps/unix/sysv/linux/generic/bits/typesizes.h
index c658dfdf60..bb5276b103 100644
--- a/sysdeps/unix/sysv/linux/generic/bits/typesizes.h
+++ b/sysdeps/unix/sysv/linux/generic/bits/typesizes.h
@@ -64,6 +64,7 @@ 
 #define __CLOCK_T_TYPE		__SLONGWORD_TYPE
 #define __USECONDS_T_TYPE	__U32_TYPE
 #define __SUSECONDS64_T_TYPE	__SQUAD_TYPE
+#define __SNSECONDS_T_TYPE	__SLONGWORD_TYPE
 #define __DADDR_T_TYPE		__S32_TYPE
 #define __KEY_T_TYPE		__S32_TYPE
 #define __CLOCKID_T_TYPE	__S32_TYPE
diff --git a/sysdeps/unix/sysv/linux/s390/bits/typesizes.h b/sysdeps/unix/sysv/linux/s390/bits/typesizes.h
index 82e77e1e03..c2ba225750 100644
--- a/sysdeps/unix/sysv/linux/s390/bits/typesizes.h
+++ b/sysdeps/unix/sysv/linux/s390/bits/typesizes.h
@@ -51,6 +51,7 @@ 
 #define __USECONDS_T_TYPE	__U32_TYPE
 #define __SUSECONDS_T_TYPE	__SLONGWORD_TYPE
 #define __SUSECONDS64_T_TYPE	__SQUAD_TYPE
+#define __SNSECONDS_T_TYPE	__SLONGWORD_TYPE
 #define __DADDR_T_TYPE		__S32_TYPE
 #define __KEY_T_TYPE		__S32_TYPE
 #define __CLOCKID_T_TYPE	__S32_TYPE
diff --git a/sysdeps/unix/sysv/linux/sparc/bits/typesizes.h b/sysdeps/unix/sysv/linux/sparc/bits/typesizes.h
index 7aaca9757d..cebc057109 100644
--- a/sysdeps/unix/sysv/linux/sparc/bits/typesizes.h
+++ b/sysdeps/unix/sysv/linux/sparc/bits/typesizes.h
@@ -51,6 +51,7 @@ 
 #define __USECONDS_T_TYPE	__U32_TYPE
 #define __SUSECONDS_T_TYPE	__S32_TYPE
 #define __SUSECONDS64_T_TYPE	__SQUAD_TYPE
+#define __SNSECONDS_T_TYPE	__SLONGWORD_TYPE
 #define __DADDR_T_TYPE		__S32_TYPE
 #define __KEY_T_TYPE		__S32_TYPE
 #define __CLOCKID_T_TYPE	__S32_TYPE
diff --git a/sysdeps/unix/sysv/linux/x86/bits/typesizes.h b/sysdeps/unix/sysv/linux/x86/bits/typesizes.h
index 060af056f8..e668755fca 100644
--- a/sysdeps/unix/sysv/linux/x86/bits/typesizes.h
+++ b/sysdeps/unix/sysv/linux/x86/bits/typesizes.h
@@ -65,6 +65,7 @@ 
 #define __USECONDS_T_TYPE	__U32_TYPE
 #define __SUSECONDS_T_TYPE	__SYSCALL_SLONG_TYPE
 #define __SUSECONDS64_T_TYPE	__SQUAD_TYPE
+#define __SNSECONDS_T_TYPE	__SYSCALL_SLONG_TYPE
 #define __DADDR_T_TYPE		__S32_TYPE
 #define __KEY_T_TYPE		__S32_TYPE
 #define __CLOCKID_T_TYPE	__S32_TYPE