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| author | Karel Zak <kzak@redhat.com> | 2020-05-07 14:47:24 +0200 |
|---|---|---|
| committer | Karel Zak <kzak@redhat.com> | 2020-11-13 09:19:02 +0100 |
| commit | 551f2b4dc9f33375a4fb95ec04654123d183a86c (patch) | |
| tree | ab96f2c468be867455a5126bbeac813d9f6fd718 /sys-utils/lscpu-api.h | |
| parent | d34b7f1b8224066e380f978dbe3ab97d283fb108 (diff) | |
| download | util-linux-551f2b4dc9f33375a4fb95ec04654123d183a86c.tar.gz | |
lscpu: add lscpu_read_cpulists()
Signed-off-by: Karel Zak <kzak@redhat.com>
Diffstat (limited to 'sys-utils/lscpu-api.h')
| -rw-r--r-- | sys-utils/lscpu-api.h | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/sys-utils/lscpu-api.h b/sys-utils/lscpu-api.h index ca4550c924..30b324cbea 100644 --- a/sys-utils/lscpu-api.h +++ b/sys-utils/lscpu-api.h @@ -86,7 +86,8 @@ struct lscpu_arch { }; struct lscpu_cxt { - const char *prefix; /* path to /sys and /proc snapshot or NULL */ + int maxcpus; /* size in bits of kernel cpu mask */ + const char *prefix; /* path to /sys and /proc snapshot or NULL */ struct path_cxt *syscpu; /* _PATH_SYS_CPU path handler */ struct path_cxt *procfs; /* /proc path handler */ @@ -97,6 +98,23 @@ struct lscpu_cxt { size_t ncpus; struct lscpu_cpu **cpus; + /* + * All maps are sequentially indexed (0..ncpuspos), the array index + * does not have match with cpuX number as presented by kernel. You + * have to use real_cpu_num() to get the real cpuX number. + * + * For example, the possible system CPUs are: 1,3,5, it means that + * ncpuspos=3, so all arrays are in range 0..3. + */ + size_t ncpuspos; /* maximal possible CPUs */ + int *idx2cpunum; /* mapping index to CPU num */ + + size_t npresents; + cpu_set_t *present; /* mask with present CPUs */ + + size_t nonlines; /* aka number of trhreads */ + cpu_set_t *online; /* mask with online CPUs */ + struct lscpu_arch *arch; unsigned int noalive; @@ -110,6 +128,7 @@ struct lscpu_cputype *lscpu_cputype_get_default(struct lscpu_cxt *cxt); int lscpu_read_cpuinfo(struct lscpu_cxt *cxt); int lscpu_read_architecture(struct lscpu_cxt *cxt); +int lscpu_read_cpulists(struct lscpu_cxt *cxt); struct lscpu_cpu *lscpu_new_cpu(void); void lscpu_ref_cpu(struct lscpu_cpu *cpu); |