[sysprof] add helper to check if we can see pids
- From: Christian Hergert <chergert src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [sysprof] add helper to check if we can see pids
- Date: Wed, 29 May 2019 22:22:16 +0000 (UTC)
commit 63969f0c0961a4e5db7260dff2415e36551ae341
Author: Christian Hergert <chergert redhat com>
Date: Fri May 10 19:58:25 2019 -0700
add helper to check if we can see pids
src/helpers.c | 28 ++++++++++++++++++++++++++++
src/helpers.h | 1 +
2 files changed, 29 insertions(+)
---
diff --git a/src/helpers.c b/src/helpers.c
index c8e13c0..7aea216 100644
--- a/src/helpers.c
+++ b/src/helpers.c
@@ -280,3 +280,31 @@ helpers_get_proc_file (const gchar *path,
g_str_has_prefix (canon, "/proc/") &&
g_file_get_contents (canon, contents, len, NULL);
}
+
+gboolean
+helpers_can_see_pids (void)
+{
+ g_autofree gchar *contents = NULL;
+ gsize len = 0;
+
+ if (g_file_test ("/.flatpak-info", G_FILE_TEST_EXISTS))
+ return FALSE;
+
+ if (helpers_get_proc_file ("/proc/mounts", &contents, &len))
+ {
+ g_auto(GStrv) lines = g_strsplit (contents, "\n", 0);
+
+ for (guint i = 0; lines[i]; i++)
+ {
+ if (!g_str_has_prefix (lines[i], "proc /proc "))
+ continue;
+
+ if (strstr (lines[i], "hidepid=") && !strstr (lines[i], "hidepid=0"))
+ return FALSE;
+
+ return TRUE;
+ }
+ }
+
+ return TRUE;
+}
diff --git a/src/helpers.h b/src/helpers.h
index 4c5fe9a..430a4e2 100644
--- a/src/helpers.h
+++ b/src/helpers.h
@@ -27,6 +27,7 @@
G_BEGIN_DECLS
+gboolean helpers_can_see_pids (void);
gboolean helpers_list_processes (gint32 **processes,
gsize *n_processes);
gboolean helpers_perf_event_open (GVariant *options,
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