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author | Laurent Bercot <ska-skaware@skarnet.org> | 2015-02-05 23:56:14 +0000 |
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committer | Laurent Bercot <ska-skaware@skarnet.org> | 2015-02-05 23:56:14 +0000 |
commit | 153a646667ff5ae7578a6027938524db91c40821 (patch) | |
tree | 429f092f8254acbb207302d9dd8c790bc596322f /src/libstddjb/openwritevnclose_suffix.c | |
parent | cea441e894405c6d28e302ae4360e9f848b37797 (diff) | |
download | skalibs-153a646667ff5ae7578a6027938524db91c40821.tar.xz |
- Add siovec_trunc
- Add openwritevnclose
- replace buffer_read/write with fd_readsv/writesv
- add localtmn_from_tain_g
- refactor cdb_make
- rewrite buffer_getvall and buffer_putvall, with a bugfix
Diffstat (limited to 'src/libstddjb/openwritevnclose_suffix.c')
-rw-r--r-- | src/libstddjb/openwritevnclose_suffix.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/libstddjb/openwritevnclose_suffix.c b/src/libstddjb/openwritevnclose_suffix.c new file mode 100644 index 0000000..0440960 --- /dev/null +++ b/src/libstddjb/openwritevnclose_suffix.c @@ -0,0 +1,30 @@ +/* ISC license. */ + +#include <errno.h> +#include <unistd.h> +#include <stdio.h> +#include <skalibs/uint64.h> +#include <skalibs/bytestr.h> +#include <skalibs/siovec.h> +#include <skalibs/djbunix.h> + +int openwritevnclose_suffix_internal (char const *fn, siovec_t const *v, unsigned int n, uint64 *dev, uint64 *ino, int dosync, char const *suffix) +{ + uint64 tmpdev, tmpino ; + unsigned int len = str_len(fn) ; + unsigned int suffixlen = str_len(suffix) ; + char tmp[len + suffixlen + 1] ; + byte_copy(tmp, len, fn) ; + byte_copy(tmp + len, suffixlen + 1, suffix) ; + if (!openwritevnclose_unsafe_internal(tmp, v, n, dev ? &tmpdev : 0, ino ? &tmpino : 0, dosync)) return 0 ; + if (rename(tmp, fn) < 0) + { + register int e = errno ; + unlink(tmp) ; + errno = e ; + return 0 ; + } + if (dev) *dev = tmpdev ; + if (ino) *ino = tmpino ; + return 1 ; +} |