Mercurial > hg > octave-lojdl > gnulib-hg
changeset 15782:402bb52d5f11
ftruncate: Support for MSVC 9.
* lib/ftruncate.c: Include errno.h, msvc-inval.h.
(chsize_nothrow): New function.
(chsize): Redefine as a macro.
* m4/ftruncate.m4 (gl_PREREQ_FTRUNCATE): Require AC_C_INLINE.
* modules/ftruncate (Depends-on): Add msvc-inval.
| author | Bruno Haible <bruno@clisp.org> |
|---|---|
| date | Sun, 25 Sep 2011 14:10:58 +0200 |
| parents | 16f47458947e |
| children | 4b59b93e3c12 |
| files | ChangeLog lib/ftruncate.c m4/ftruncate.m4 modules/ftruncate |
| diffstat | 4 files changed, 36 insertions(+), 1 deletions(-) [+] |
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--- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,12 @@ +2011-09-25 Bruno Haible <bruno@clisp.org> + + ftruncate: Support for MSVC 9. + * lib/ftruncate.c: Include errno.h, msvc-inval.h. + (chsize_nothrow): New function. + (chsize): Redefine as a macro. + * m4/ftruncate.m4 (gl_PREREQ_FTRUNCATE): Require AC_C_INLINE. + * modules/ftruncate (Depends-on): Add msvc-inval. + 2011-09-25 Bruno Haible <bruno@clisp.org> New module 'fstat'.
--- a/lib/ftruncate.c +++ b/lib/ftruncate.c @@ -8,8 +8,32 @@ #if HAVE_CHSIZE +# include <errno.h> # include <io.h> +# if HAVE_MSVC_INVALID_PARAMETER_HANDLER +# include "msvc-inval.h" +static inline int +chsize_nothrow (int fd, long length) +{ + int result; + + TRY_MSVC_INVAL + { + result = chsize (fd, length); + } + CATCH_MSVC_INVAL + { + result = -1; + errno = EBADF; + } + DONE_MSVC_INVAL; + + return result; +} +# define chsize chsize_nothrow +# endif + int ftruncate (int fd, off_t length) {
--- a/m4/ftruncate.m4 +++ b/m4/ftruncate.m4 @@ -1,4 +1,4 @@ -# serial 17 +# serial 18 # See if we need to emulate a missing ftruncate function using chsize. @@ -19,5 +19,6 @@ # Prerequisites of lib/ftruncate.c. AC_DEFUN([gl_PREREQ_FTRUNCATE], [ + AC_REQUIRE([AC_C_INLINE]) AC_CHECK_FUNCS([chsize]) ])