mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2025-04-03 09:38:07 +07:00
1b85337d06
The extensible file description array that grew in the perf_evlist class
can be useful for other tools, as it is not something that only evlists
need, so move it to tools/lib/api/fd to ease sharing it.
v2: Don't use {} like in:
libapi_dirs:
$(QUIET_MKDIR)mkdir -p $(OUTPUT){fs,fd}/
in Makefiles, as it will not work in some systems, as in ubuntu13.10.
v3: Add fd/*.[ch] to LIBAPIKFS_SOURCES (Fix from Jiri Olsa)
v4: Leave the fcntl(fd, O_NONBLOCK) in the evlist layer, remains to
be checked if it is really needed there, but has no place in the
fdarray class (Fix from Jiri Olsa)
v5: Remove evlist details from fdarray grow/filter tests. Improve it a
bit doing more tests about expected internal state.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jean Pihet <jean.pihet@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-kleuni3hckbc3s0lu6yb9x40@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
33 lines
812 B
C
33 lines
812 B
C
#ifndef __API_FD_ARRAY__
|
|
#define __API_FD_ARRAY__
|
|
|
|
#include <stdio.h>
|
|
|
|
struct pollfd;
|
|
|
|
struct fdarray {
|
|
int nr;
|
|
int nr_alloc;
|
|
int nr_autogrow;
|
|
struct pollfd *entries;
|
|
};
|
|
|
|
void fdarray__init(struct fdarray *fda, int nr_autogrow);
|
|
void fdarray__exit(struct fdarray *fda);
|
|
|
|
struct fdarray *fdarray__new(int nr_alloc, int nr_autogrow);
|
|
void fdarray__delete(struct fdarray *fda);
|
|
|
|
int fdarray__add(struct fdarray *fda, int fd, short revents);
|
|
int fdarray__poll(struct fdarray *fda, int timeout);
|
|
int fdarray__filter(struct fdarray *fda, short revents);
|
|
int fdarray__grow(struct fdarray *fda, int extra);
|
|
int fdarray__fprintf(struct fdarray *fda, FILE *fp);
|
|
|
|
static inline int fdarray__available_entries(struct fdarray *fda)
|
|
{
|
|
return fda->nr_alloc - fda->nr;
|
|
}
|
|
|
|
#endif /* __API_FD_ARRAY__ */
|