Initial commit

1 files changed, 89 insertions, 0 deletions

diff --git a/common.h b/common.h
new file mode 100644
index 0000000..ccdf7e8
--- /dev/null
+++ b/common.h
@@ -0,0 +1,89 @@
+#ifndef MSTAT_COMMON_H
+#define MSTAT_COMMON_H
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <limits.h>
+#include <time.h>
+
+#define MSTAT_MAGIC "MSTAT"
+#define MSTAT_FIELD_COUNT 0x08
+#define MSTAT_EOH 0x0C
+#define MSTAT_MAGIC_SIZE 0x10
+
+struct mstat_record_t {
+    pid_t pid;
+    double timestamp;
+    size_t rss,
+            pss,
+            pss_anon,
+            pss_file,
+            pss_shmem,
+            shared_clean,
+            shared_dirty,
+            private_clean,
+            private_dirty,
+            referenced,
+            anonymous,
+            lazy_free,
+            anon_huge_pages,
+            shmem_pmd_mapped,
+            file_pmd_mapped,
+            shared_hugetlb,
+            private_hugetlb,
+            swap,
+            swap_pss,
+            locked;
+};
+
+enum {
+    MSTAT_FIELD_PID = 0,
+    MSTAT_FIELD_TIMESTAMP,
+    MSTAT_FIELD_RSS,
+    MSTAT_FIELD_PSS,
+    MSTAT_FIELD_PSS_ANON,
+    MSTAT_FIELD_PSS_FILE,
+    MSTAT_FIELD_PSS_SHMEM,
+    MSTAT_FIELD_SHARED_CLEAN,
+    MSTAT_FIELD_SHARED_DIRTY,
+    MSTAT_FIELD_PRIVATE_CLEAN,
+    MSTAT_FIELD_PRIVATE_DIRTY,
+    MSTAT_FIELD_REFERENCED,
+    MSTAT_FIELD_ANONYMOUS,
+    MSTAT_FIELD_LAZY_FREE,
+    MSTAT_FIELD_ANON_HUGE_PAGES,
+    MSTAT_FIELD_SHMEM_PMD_MAPPED,
+    MSTAT_FIELD_FILE_PMD_MAPPED,
+    MSTAT_FIELD_SHARED_HUGETLB,
+    MSTAT_FIELD_PRIVATE_HUGETLB,
+    MSTAT_FIELD_SWAP,
+    MSTAT_FIELD_SWAP_PSS,
+    MSTAT_FIELD_LOCKED,
+};
+
+union mstat_field_t {
+    size_t u64;
+    double d64;
+};
+
+int mstat_get_field_count(FILE *fp);
+char **mstat_read_fields(FILE *fp);
+int mstat_is_valid_field(char **fields, const char *name);
+union mstat_field_t mstat_get_field_by_id(const struct mstat_record_t *record, unsigned id);
+union mstat_field_t mstat_get_field_by_name(const struct mstat_record_t *p, const char *name);
+int mstat_check_header(FILE *fp);
+FILE *mstat_open(const char *filename);
+int mstat_rewind(FILE *fp);
+ssize_t mstat_get_value_smaps(char *data);
+char *mstat_get_key_smaps(char *data, const char *key);
+int mstat_read_smaps(struct mstat_record_t *p, FILE *fp);
+int mstat_attach(struct mstat_record_t *p, pid_t pid);
+int mstat_write_header(FILE *fp);
+int mstat_write(FILE *fp, struct mstat_record_t *p);
+int mstat_iter(FILE *fp, struct mstat_record_t *p);
+void mstat_get_mmax(const double a[], size_t size, double *min, double *max);
+double mstat_difftimespec(struct timespec end, struct timespec start);
+
+#endif //MSTAT_COMMON_H