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authorCarlos Garcia Campos <cgarcia@igalia.com>2012-07-12 02:32:21 +0800
committerCarlos Garcia Campos <carlosgc@gnome.org>2012-08-14 19:13:30 +0800
commite3bacf063d583c69dbbd7a83e58bca777b8fcfde (patch)
tree5eb5db5dc74ba92158c30c281f0787c732f25796 /lib
parentad4b199dc292bc14935a5bfe9bd4fcae23e84465 (diff)
downloadgsoc2013-epiphany-e3bacf063d583c69dbbd7a83e58bca777b8fcfde.tar.gz
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Show information about web and plugin processes in about:memory
https://bugzilla.gnome.org/show_bug.cgi?id=679764
Diffstat (limited to 'lib')
-rw-r--r--lib/ephy-smaps.c187
1 files changed, 177 insertions, 10 deletions
diff --git a/lib/ephy-smaps.c b/lib/ephy-smaps.c
index eab640094..348413720 100644
--- a/lib/ephy-smaps.c
+++ b/lib/ephy-smaps.c
@@ -21,6 +21,7 @@
#include "config.h"
#include "ephy-smaps.h"
+#include <errno.h>
#include <gio/gio.h>
#include <stdio.h>
#include <string.h>
@@ -57,6 +58,32 @@ typedef struct {
guint private_dirty;
} PermEntry;
+typedef enum {
+ EPHY_PROCESS_EPIPHANY,
+ EPHY_PROCESS_WEB,
+ EPHY_PROCESS_PLUGIN,
+
+ EPHY_PROCESS_OTHER
+} EphyProcess;
+
+#ifdef HAVE_WEBKIT2
+static const char *get_ephy_process_name (EphyProcess process)
+{
+ switch (process) {
+ case EPHY_PROCESS_EPIPHANY:
+ return "Browser";
+ case EPHY_PROCESS_WEB:
+ return "Web Process";
+ case EPHY_PROCESS_PLUGIN:
+ return "Plugin Process";
+ case EPHY_PROCESS_OTHER:
+ g_assert_not_reached ();
+ }
+
+ return NULL;
+}
+#endif
+
static void vma_free (VMA_t* vma)
{
g_free (vma->start);
@@ -162,33 +189,35 @@ static void print_vma_table (GString *str, GHashTable *hash, const char *caption
g_string_append (str, "</table>");
}
-char* ephy_smaps_to_html (EphySMaps *smaps)
+static void ephy_smaps_pid_to_html (EphySMaps *smaps, GString *str, pid_t pid, EphyProcess process)
{
GFileInputStream *stream;
GDataInputStream *data_stream;
- GFile *file = g_file_new_for_path ("/proc/self/smaps");
+ char *path;
+ GFile *file;
char *line;
- GString *str;
GError *error = NULL;
VMA_t *vma = NULL;
GHashTable *anon_hash, *mapped_hash;
GSList *vma_entries = NULL, *p;
EphySMapsPrivate *priv = smaps->priv;
+ path = g_strdup_printf ("/proc/%u/smaps", pid);
+ file = g_file_new_for_path (path);
+ g_free (path);
+
stream = g_file_read (file, NULL, &error);
g_object_unref (file);
if (error && error->code == G_IO_ERROR_NOT_FOUND ) {
/* This is not GNU/Linux, do nothing. */
g_error_free (error);
- return NULL;
+ return;
}
data_stream = g_data_input_stream_new (G_INPUT_STREAM (stream));
g_object_unref (stream);
- str = g_string_new ("");
-
while ((line = g_data_input_stream_read_line (data_stream, NULL, NULL, NULL))) {
GMatchInfo *match_info = NULL;
gboolean matched = FALSE;
@@ -277,20 +306,158 @@ char* ephy_smaps_to_html (EphySMaps *smaps)
g_slist_free (vma_entries);
- /* Create the page. */
- g_string_append (str, "<body>");
+#ifdef HAVE_WEBKIT2
+ g_string_append_printf (str, "<h2>%s</h2>", get_ephy_process_name (process));
+#endif
/* Anon table. */
print_vma_table (str, anon_hash, "Anonymous memory");
/* Mapped table. */
print_vma_table (str, mapped_hash, "Mapped memory");
-
- g_string_append (str, "</body>");
/* Done. */
g_hash_table_unref (anon_hash);
g_hash_table_unref (mapped_hash);
+}
+
+#ifdef HAVE_WEBKIT2
+static pid_t get_pid_from_proc_name (const char *name)
+{
+ guint i;
+ char *end_ptr = NULL;
+ guint64 pid;
+
+ for (i = 0; name[i]; i++) {
+ if (!g_ascii_isdigit (name[i]))
+ return 0;
+ }
+
+ errno = 0;
+ pid = g_ascii_strtoll (name, &end_ptr, 10);
+ if (errno || end_ptr == name)
+ return 0;
+
+ return pid;
+}
+
+static pid_t get_parent_pid (pid_t pid)
+{
+ char *path;
+ char *data;
+ gsize data_length = 0;
+ char *p;
+ char *end_ptr = NULL;
+ pid_t ppid;
+
+ path = g_strdup_printf ("/proc/%u/stat", pid);
+ if (!g_file_get_contents (path, &data, &data_length, NULL)) {
+ g_free (path);
+
+ return 0;
+ }
+ g_free (path);
+
+ p = strstr (data, ")");
+ if (!p) {
+ g_free (data);
+
+ return 0;
+ }
+
+ /* Skip whitespace + state + whitespace. */
+ p += 3;
+ errno = 0;
+ ppid = g_ascii_strtoll (p, &end_ptr, 10);
+ if (errno || end_ptr == p) {
+ g_free (data);
+
+ return 0;
+ }
+ g_free (data);
+
+ return ppid;
+}
+
+static EphyProcess get_ephy_process (pid_t pid)
+{
+ char *path;
+ char *data;
+ gsize data_length = 0;
+ char *p;
+ char *name;
+ EphyProcess process = EPHY_PROCESS_OTHER;
+
+ path = g_strdup_printf ("/proc/%u/cmdline", pid);
+ if (!g_file_get_contents (path, &data, &data_length, NULL)) {
+ g_free (path);
+
+ return process;
+ }
+ g_free (path);
+
+ p = strstr (data, " ");
+ if (p)
+ *p = '\0';
+
+ name = g_path_get_basename (data);
+ if (g_strcmp0 (name, "WebKitWebProcess") == 0)
+ process = EPHY_PROCESS_WEB;
+ else if (g_strcmp0 (name, "WebKitPluginProcess") == 0)
+ process = EPHY_PROCESS_PLUGIN;
+
+ g_free (data);
+ g_free (name);
+
+ return process;
+}
+
+static void ephy_smaps_pid_children_to_html (EphySMaps *smaps, GString *str, pid_t parent_pid)
+{
+ GDir *proc;
+ const char *name;
+
+ proc = g_dir_open ("/proc/", 0, NULL);
+ if (!proc)
+ return;
+
+ while ((name = g_dir_read_name (proc))) {
+ pid_t pid, ppid;
+ EphyProcess process;
+
+ if (g_str_equal (name, "self"))
+ continue;
+
+ pid = get_pid_from_proc_name (name);
+ if (pid == 0 || pid == parent_pid)
+ continue;
+
+ ppid = get_parent_pid (pid);
+ if (ppid != parent_pid)
+ continue;
+
+ process = get_ephy_process (pid);
+ if (process != EPHY_PROCESS_OTHER)
+ ephy_smaps_pid_to_html (smaps, str, pid, process);
+ }
+ g_dir_close (proc);
+}
+#endif
+
+char* ephy_smaps_to_html (EphySMaps *smaps)
+{
+ GString *str = g_string_new ("");
+ pid_t pid = getpid ();
+
+ g_string_append (str, "<body>");
+
+ ephy_smaps_pid_to_html (smaps, str, pid, EPHY_PROCESS_EPIPHANY);
+
+#ifdef HAVE_WEBKIT2
+ ephy_smaps_pid_children_to_html (smaps, str, pid);
+#endif
+
+ g_string_append (str, "</body>");
return g_string_free (str, FALSE);
}
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