diff options
Diffstat (limited to '')
| -rw-r--r-- | debian/patches/upstream/0006-lib-procfs-add-function-to-parse-proc-stat.patch | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/debian/patches/upstream/0006-lib-procfs-add-function-to-parse-proc-stat.patch b/debian/patches/upstream/0006-lib-procfs-add-function-to-parse-proc-stat.patch new file mode 100644 index 0000000..54ca955 --- /dev/null +++ b/debian/patches/upstream/0006-lib-procfs-add-function-to-parse-proc-stat.patch @@ -0,0 +1,112 @@ +From: Karel Zak <kzak@redhat.com> +Date: Thu, 11 Aug 2022 10:56:02 +0200 +Subject: [PATCH 06/24] lib/procfs: add function to parse /proc/#/stat + +Signed-off-by: Karel Zak <kzak@redhat.com> +--- + include/procfs.h | 1 + + lib/procfs.c | 58 +++++++++++++++++++++++++++++++++++++++++++++++++++++++- + 2 files changed, 58 insertions(+), 1 deletion(-) + +diff --git a/include/procfs.h b/include/procfs.h +index 5a730c9..825689b 100644 +--- a/include/procfs.h ++++ b/include/procfs.h +@@ -30,6 +30,7 @@ extern ssize_t procfs_process_get_cmdline(struct path_cxt *pc, char *buf, size_t + extern ssize_t procfs_process_get_cmdname(struct path_cxt *pc, char *buf, size_t bufsz); + extern ssize_t procfs_process_get_stat(struct path_cxt *pc, char *buf, size_t bufsz); + ++extern int procfs_process_get_stat_nth(struct path_cxt *pc, int n, uintmax_t *re); + + static inline ssize_t procfs_process_get_exe(struct path_cxt *pc, char *buf, size_t bufsz) + { +diff --git a/lib/procfs.c b/lib/procfs.c +index 4d6d25b..16a8c04 100644 +--- a/lib/procfs.c ++++ b/lib/procfs.c +@@ -166,6 +166,35 @@ ssize_t procfs_process_get_stat(struct path_cxt *pc, char *buf, size_t bufsz) + return procfs_process_get_line_for(pc, buf, bufsz, "stat"); + } + ++int procfs_process_get_stat_nth(struct path_cxt *pc, int n, uintmax_t *re) ++{ ++ ssize_t rc; ++ char *key = NULL, *tok, *p; ++ char buf[BUFSIZ]; ++ int i; ++ ++ if (n == 2 || n == 3) /* process name and status (strings) */ ++ return -EINVAL; ++ ++ rc = procfs_process_get_line_for(pc, buf, sizeof(buf), "stat"); ++ if (rc < 0) ++ return rc; ++ ++ for (i = 0, tok = strtok_r(buf, " ", &key); tok; ++ tok = strtok_r(NULL, " ", &key)) { ++ ++ i++; ++ if (i == n) ++ return ul_strtou64(tok, re, 10); ++ ++ /* skip rest of the process name */ ++ if (i == 2 && (p = strchr(key, ')'))) ++ key = p + 2; ++ } ++ ++ return -EINVAL; ++} ++ + int procfs_process_get_uid(struct path_cxt *pc, uid_t *uid) + { + struct stat sb; +@@ -536,6 +565,30 @@ static int test_isprocfs(int argc, char *argv[]) + return is ? EXIT_SUCCESS : EXIT_FAILURE; + } + ++static int test_process_stat_nth(int argc, char *argv[]) ++{ ++ pid_t pid; ++ struct path_cxt *pc; ++ uintmax_t num = 0; ++ int n; ++ ++ if (argc != 3) ++ return EXIT_FAILURE; ++ pid = strtol(argv[1], (char **) NULL, 10); ++ n = strtol(argv[2], (char **) NULL, 10); ++ ++ pc = ul_new_procfs_path(pid, NULL); ++ if (!pc) ++ err(EXIT_FAILURE, "cannot alloc procfs handler"); ++ ++ if (procfs_process_get_stat_nth(pc, n, &num) != 0) ++ err(EXIT_FAILURE, "read %dth number failed", n); ++ ++ printf("%d: %dth %ju\n", (int) pid, n, num); ++ ul_unref_path(pc); ++ return EXIT_SUCCESS; ++} ++ + int main(int argc, char *argv[]) + { + if (argc < 2) { +@@ -543,7 +596,8 @@ int main(int argc, char *argv[]) + " %1$s --fds <pid>\n" + " %1$s --is-procfs [<dir>]\n" + " %1$s --processes [---name <name>] [--uid <uid>]\n" +- " %1$s --one <pid>\n", ++ " %1$s --one <pid>\n" ++ " %1$s --stat-nth <pid> <n>\n", + program_invocation_short_name); + return EXIT_FAILURE; + } +@@ -558,6 +612,8 @@ int main(int argc, char *argv[]) + return test_isprocfs(argc - 1, argv + 1); + if (strcmp(argv[1], "--one") == 0) + return test_one_process(argc - 1, argv + 1); ++ if (strcmp(argv[1], "--stat-nth") == 0) ++ return test_process_stat_nth(argc - 1, argv + 1); + + return EXIT_FAILURE; + } |