mirror of
https://github.com/Unidata/netcdf-c.git
synced 2024-11-27 07:30:33 +08:00
83 lines
2.0 KiB
C
83 lines
2.0 KiB
C
/*
|
|
* Copyright 2010 University Corporation for Atmospheric
|
|
* Research/Unidata. See COPYRIGHT file for more info.
|
|
*
|
|
* See \ref copyright file for more info.
|
|
*
|
|
*/
|
|
|
|
#ifndef NETCDF_MEM_H
|
|
#define NETCDF_MEM_H 1
|
|
|
|
#if defined(__cplusplus)
|
|
extern "C" {
|
|
#endif
|
|
|
|
/* Declaration modifiers for DLL support (MSC et al) */
|
|
#if defined(DLL_NETCDF) /* define when library is a DLL */
|
|
# if defined(DLL_EXPORT) /* define when building the library */
|
|
# define MSC_EXTRA __declspec(dllexport)
|
|
# else
|
|
# define MSC_EXTRA __declspec(dllimport)
|
|
# endif
|
|
#include <io.h>
|
|
#else
|
|
#define MSC_EXTRA
|
|
#endif /* defined(DLL_NETCDF) */
|
|
|
|
# define EXTERNL MSC_EXTRA extern
|
|
|
|
/**
|
|
Open a netCDF file with the contents taken from a block of memory.
|
|
|
|
\param path Must be non-null, but otherwise only used to set the dataset name.
|
|
|
|
\param mode the mode flags; Note that this procedure uses a limited set of flags because it forcibly sets NC_NOWRITE|NC_DISKLESS|NC_INMEMORY.
|
|
|
|
\param size The length of the block of memory being passed.
|
|
|
|
\param memory Pointer to the block of memory containing the contents
|
|
of a netcdf file.
|
|
|
|
\param ncidp Pointer to location where returned netCDF ID is to be
|
|
stored.
|
|
|
|
\returns ::NC_NOERR No error.
|
|
|
|
\returns ::NC_ENOMEM Out of memory.
|
|
|
|
\returns ::NC_EDISKLESS diskless io is not enabled for fails.
|
|
|
|
\returns ::NC_EINVAL, etc. other errors also returned by nc_open.
|
|
|
|
<h1>Examples</h1>
|
|
|
|
Here is an example using nc_open_mem() to open an existing netCDF dataset
|
|
named foo.nc for read-only, non-shared access. It differs from the nc_open()
|
|
example in that it assumes the contents of foo.nc have been read into memory.
|
|
|
|
@code
|
|
#include <netcdf.h>
|
|
#include <netcdf_mem.h>
|
|
...
|
|
int status = NC_NOERR;
|
|
int ncid;
|
|
size_t size;
|
|
void* memory;
|
|
...
|
|
size = <compute file size of foo.nc in bytes>;
|
|
memory = malloc(size);
|
|
...
|
|
status = nc_open_mem("foo.nc", 0, size, memory, &ncid);
|
|
if (status != NC_NOERR) handle_error(status);
|
|
@endcode
|
|
*/
|
|
EXTERNL int
|
|
nc_open_mem(const char* path, int mode, size_t size, void* memory, int* ncidp);
|
|
|
|
#if defined(__cplusplus)
|
|
}
|
|
#endif
|
|
|
|
#endif /* NETCDF_MEM_H */
|