diff options
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_unsafe.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_unsafe.c')
-rw-r--r-- | src/libstddjb/openwritevnclose_unsafe.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/src/libstddjb/openwritevnclose_unsafe.c b/src/libstddjb/openwritevnclose_unsafe.c new file mode 100644 index 0000000..feb2ae5 --- /dev/null +++ b/src/libstddjb/openwritevnclose_unsafe.c @@ -0,0 +1,33 @@ +/* ISC license. */ + +#include <sys/types.h> +#include <sys/stat.h> +#include <errno.h> +#include <unistd.h> +#include <skalibs/uint64.h> +#include <skalibs/allreadwrite.h> +#include <skalibs/siovec.h> +#include <skalibs/djbunix.h> + +int openwritevnclose_unsafe_internal (char const *fn, siovec_t const *v, unsigned int vlen, uint64 *dev, uint64 *ino, int dosync) +{ + struct stat st ; + int fd = open_trunc(fn) ; + if (fd < 0) return 0 ; + if (allwritev(fd, v, vlen) < siovec_len(v, vlen)) goto fail ; + if ((dev || ino) && (fstat(fd, &st) < 0)) goto fail ; + if (dosync && (fd_sync(fd) < 0) && (errno != EINVAL)) goto fail ; + fd_close(fd) ; + if (dev) *dev = (uint64)st.st_dev ; + if (ino) *ino = (uint64)st.st_ino ; + return 1 ; + + fail: + { + register int e = errno ; + fd_close(fd) ; + unlink(fn) ; + errno = e ; + } + return 0 ; +} |