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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>
39 lines
967 B
C
39 lines
967 B
C
#ifndef __API_FS__
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#define __API_FS__
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#include <stdbool.h>
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#include <unistd.h>
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/*
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* On most systems <limits.h> would have given us this, but not on some systems
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* (e.g. GNU/Hurd).
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*/
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#ifndef PATH_MAX
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#define PATH_MAX 4096
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#endif
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#define FS(name) \
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const char *name##__mountpoint(void); \
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const char *name##__mount(void); \
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bool name##__configured(void); \
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FS(sysfs)
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FS(procfs)
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FS(debugfs)
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FS(tracefs)
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#undef FS
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int filename__read_int(const char *filename, int *value);
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int filename__read_ull(const char *filename, unsigned long long *value);
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int filename__read_str(const char *filename, char **buf, size_t *sizep);
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int procfs__read_str(const char *entry, char **buf, size_t *sizep);
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int sysctl__read_int(const char *sysctl, int *value);
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int sysfs__read_int(const char *entry, int *value);
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int sysfs__read_ull(const char *entry, unsigned long long *value);
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int sysfs__read_str(const char *entry, char **buf, size_t *sizep);
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#endif /* __API_FS__ */
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