mirror of
https://github.com/torvalds/linux.git
synced 2025-11-04 10:40:15 +02:00
4bd112df3e
To read things like /proc/self/comm. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Milian Wolff <milian.wolff@kdab.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-ztpkbmseidt0hq2psr46o0h9@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
38 lines
967 B
C
38 lines
967 B
C
#ifndef __API_FS__
|
|
#define __API_FS__
|
|
|
|
#include <stdbool.h>
|
|
#include <unistd.h>
|
|
|
|
/*
|
|
* On most systems <limits.h> would have given us this, but not on some systems
|
|
* (e.g. GNU/Hurd).
|
|
*/
|
|
#ifndef PATH_MAX
|
|
#define PATH_MAX 4096
|
|
#endif
|
|
|
|
#define FS(name) \
|
|
const char *name##__mountpoint(void); \
|
|
const char *name##__mount(void); \
|
|
bool name##__configured(void); \
|
|
|
|
FS(sysfs)
|
|
FS(procfs)
|
|
FS(debugfs)
|
|
FS(tracefs)
|
|
|
|
#undef FS
|
|
|
|
|
|
int filename__read_int(const char *filename, int *value);
|
|
int filename__read_ull(const char *filename, unsigned long long *value);
|
|
int filename__read_str(const char *filename, char **buf, size_t *sizep);
|
|
|
|
int procfs__read_str(const char *entry, char **buf, size_t *sizep);
|
|
|
|
int sysctl__read_int(const char *sysctl, int *value);
|
|
int sysfs__read_int(const char *entry, int *value);
|
|
int sysfs__read_ull(const char *entry, unsigned long long *value);
|
|
int sysfs__read_str(const char *entry, char **buf, size_t *sizep);
|
|
#endif /* __API_FS__ */
|