diff options
Diffstat (limited to 'src/H5FDsplitter.c')
| -rw-r--r-- | src/H5FDsplitter.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/src/H5FDsplitter.c b/src/H5FDsplitter.c index 73c898a..3113e8b 100644 --- a/src/H5FDsplitter.c +++ b/src/H5FDsplitter.c @@ -129,6 +129,8 @@ static herr_t H5FD__splitter_flush(H5FD_t *_file, hid_t dxpl_id, hbool_t closin static herr_t H5FD__splitter_truncate(H5FD_t *_file, hid_t dxpl_id, hbool_t closing); static herr_t H5FD__splitter_lock(H5FD_t *_file, hbool_t rw); static herr_t H5FD__splitter_unlock(H5FD_t *_file); +static herr_t H5FD__splitter_ctl(H5FD_t *_file, uint64_t op_code, uint64_t flags, const void *input, + void **output); static const H5FD_class_t H5FD_splitter_g = { "splitter", /* name */ @@ -163,6 +165,7 @@ static const H5FD_class_t H5FD_splitter_g = { H5FD__splitter_lock, /* lock */ H5FD__splitter_unlock, /* unlock */ NULL, /* del */ + H5FD__splitter_ctl, /* ctl */ H5FD_FLMAP_DICHOTOMY /* fl_map */ }; @@ -1145,6 +1148,63 @@ done: } /* end H5FD__splitter_unlock */ /*------------------------------------------------------------------------- + * Function: H5FD__splitter_ctl + * + * Purpose: Splitter VFD version of the ctl callback. + * + * The desired operation is specified by the op_code + * parameter. + * + * The flags parameter controls management of op_codes that + * are unknown to the callback + * + * The input and output parameters allow op_code specific + * input and output + * + * At present, this VFD supports no op codes of its own and + * simply passes ctl calls on to the R/W channel VFD. + * + * Return: Non-negative on success/Negative on failure + * + *------------------------------------------------------------------------- + */ +static herr_t +H5FD__splitter_ctl(H5FD_t *_file, uint64_t op_code, uint64_t flags, const void *input, void **output) +{ + H5FD_splitter_t *file = (H5FD_splitter_t *)_file; + herr_t ret_value = SUCCEED; + + FUNC_ENTER_STATIC + + /* Sanity checks */ + HDassert(file); + HDassert(H5FD_SPLITTER == file->pub.driver_id); + + switch (op_code) { + /* Unknown op code */ + default: + if (flags & H5FD_CTL__ROUTE_TO_TERMINAL_VFD_FLAG) { + /* Pass ctl call down to R/W channel VFD */ + if (H5FDctl(file->rw_file, op_code, flags, input, output) < 0) + HGOTO_ERROR(H5E_VFL, H5E_FCNTL, FAIL, "VFD ctl request failed") + } + else { + /* If no valid VFD routing flag is specified, fail for unknown op code + * if H5FD_CTL__FAIL_IF_UNKNOWN_FLAG flag is set. + */ + if (flags & H5FD_CTL__FAIL_IF_UNKNOWN_FLAG) + HGOTO_ERROR(H5E_VFL, H5E_FCNTL, FAIL, + "VFD ctl request failed (unknown op code and fail if unknown flag is set)") + } + + break; + } + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5FD__splitter_ctl() */ + +/*------------------------------------------------------------------------- * Function: H5FD__splitter_query * * Purpose: Set the flags that this VFL driver is capable of supporting. |