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| author | Maxime Devos <maximedevos@telenet.be> | 2021-11-16 11:06:31 +0000 |
|---|---|---|
| committer | Ludovic Courtès <ludo@gnu.org> | 2022-10-21 17:40:37 +0200 |
| commit | 3a0554c60fb12857c67d2eb0bd04cf8c59014f55 (patch) | |
| tree | 8ddc86f7fb394840c3a04815c571348ceed908e8 /libguile/filesys.c | |
| parent | 24028e75ca6c184051ee9543ceefeefe628c025b (diff) | |
| download | guile-3a0554c60fb12857c67d2eb0bd04cf8c59014f55.tar.gz | |
Define a Scheme binding to ‘renameat’ when it exists.
* configure.ac: Detect if ‘renameat’ is defined.
* libguile/filesys.c (scm_renameat): Define a Scheme binding
to the ‘renameat’ system call.
* doc/ref/posix.texi (File System): Document it.
* libguile/filesys.h (scm_renameat): Make it part of the C API.
* test-suite/tests/filesys.test ("rename-file-at"): New tests.
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
Diffstat (limited to 'libguile/filesys.c')
| -rw-r--r-- | libguile/filesys.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/libguile/filesys.c b/libguile/filesys.c index 29787a83f..fc7867fb8 100644 --- a/libguile/filesys.c +++ b/libguile/filesys.c @@ -1408,6 +1408,40 @@ SCM_DEFINE (scm_rename, "rename-file", 2, 0, 0, } #undef FUNC_NAME +#ifdef HAVE_RENAMEAT +SCM_DEFINE (scm_renameat, "rename-file-at", 4, 0, 0, + (SCM olddir, SCM oldname, SCM newdir, SCM newname), + "Like @code{rename-file}, but when @var{olddir} or @var{newdir}\n" + "is true, resolve @var{oldname} or @var{newname} relative to\n" + "the directory specified by file port @var{olddir} or\n" + "@var{newdir} instead of the current working directory.") +#define FUNC_NAME s_scm_renameat +{ + int rv; + int old_fdes, new_fdes; + + old_fdes = AT_FDCWD; + new_fdes = AT_FDCWD; + + if (scm_is_true (olddir)) { + SCM_VALIDATE_OPFPORT (SCM_ARG1, olddir); + old_fdes = SCM_FPORT_FDES (olddir); + } + if (scm_is_true (newdir)) { + SCM_VALIDATE_OPFPORT (SCM_ARG3, newdir); + new_fdes = SCM_FPORT_FDES (newdir); + } + + STRING2_SYSCALL (oldname, c_oldname, + newname, c_newname, + rv = renameat (old_fdes, c_oldname, new_fdes, c_newname)); + scm_remember_upto_here_2 (olddir, newdir); + if (rv != 0) + SCM_SYSERROR; + return SCM_UNSPECIFIED; +} +#undef FUNC_NAME +#endif SCM_DEFINE (scm_delete_file, "delete-file", 1, 0, 0, (SCM str), |