eccodes/src/codes_memfs.c

61 lines
1.3 KiB
C

/*
* Copyright 2005-2016 ECMWF.
*
* This software is licensed under the terms of the Apache Licence Version 2.0
* which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
*
* In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
* virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
*/
#include "grib_api_internal.h"
#ifdef HAVE_MEMFS
/* These two functions are implemented in the generated C file memfs.c in the build area */
/* See the memfs.py Python generator */
int codes_memfs_exists(const char* path);
FILE* codes_memfs_open(const char* path);
FILE* codes_fopen(const char* name, const char *mode)
{
FILE *f;
if (strcmp(mode, "r") != 0) {
return fopen(name, mode);
}
f = codes_memfs_open(name); /* Load from memory */
if (f) {
return f;
}
return fopen(name, mode);
}
int codes_access(const char* name, int mode)
{
if (mode != F_OK) {
return access(name, mode);
}
if (codes_memfs_exists(name)) { /* Check memory */
return 0;
}
return access(name, mode);
}
#else
FILE* codes_fopen(const char* name, const char* mode)
{
return fopen(name, mode);
}
int codes_access(const char* name, int mode)
{
return access(name, mode);
}
#endif