Add a check in get online pids Only sends the pids that are currently online.
Signed-off-by: Matthew Khouzam<[email protected]> --- libustctl/libustctl.c | 14 +++++++++++++- 1 files changed, 13 insertions(+), 1 deletions(-) diff --git a/libustctl/libustctl.c b/libustctl/libustctl.c index d57e645..9317440 100644 --- a/libustctl/libustctl.c +++ b/libustctl/libustctl.c @@ -92,6 +92,8 @@ pid_t *ustctl_get_online_pids(void) { struct dirent *dirent; DIR *dir; + DIR *proc_dir; + char proc_dir_path[PATH_MAX]; unsigned int ret_size = 1 * sizeof(pid_t), i = 0; dir = opendir(SOCK_DIR); @@ -117,7 +119,17 @@ pid_t *ustctl_get_online_pids(void) * We need to figure out an intelligent way of solving * this, maybe connect-disconnect. */ - if (1) { + snprintf(proc_dir_path, PATH_MAX, "/proc/%u/", ret[i]); + proc_dir = opendir(proc_dir_path); + /* + * Note: + * maybe we should remove the empty dir in this pass + * too. Since the detection method is not perfect, + * this step is not yet implemented. + * A process can die, and its pid can be still taken + * when reading online pids. + */ + if (proc_dir) { ret_size += sizeof(pid_t); ret = (pid_t *) realloc(ret, ret_size); ++i; -- 1.7.0.4
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