pmem2_source_get_fd3
Reads file descriptor of the data source
Usage
-
#include <libpmem2.h>int pmem2_source_get_fd(const struct pmem2_source *src, int *fd);
Overview
The pmem2_source_get_fd() function reads the file descriptor of *struct pmem2_source** object describing the data source and returns it by fd parameter.
This function is Linux only, on Windows use pmem2_source_get_handle(3).
Return value
The pmem2_source_get_fd() function returns 0 on success or a negative error code on failure.
Errors
The pmem2_source_get_fd() can fail with the following errors:
- •
-
PMEM2_E_FILE_DESCRIPTOR_NOT_SET- in case of an instance of struct pmem2_source that does not come from source type that support file descriptors, eg. anonymous data source.
Releases
3 releases since Debian 11 (Bullseye); the text changed 2 times.