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| author | Carlos Garcia Campos <cgarcia@igalia.com> | 2012-07-12 02:32:21 +0800 |
|---|---|---|
| committer | Carlos Garcia Campos <carlosgc@gnome.org> | 2012-08-14 19:13:30 +0800 |
| commit | e3bacf063d583c69dbbd7a83e58bca777b8fcfde (patch) | |
| tree | 5eb5db5dc74ba92158c30c281f0787c732f25796 | |
| parent | ad4b199dc292bc14935a5bfe9bd4fcae23e84465 (diff) | |
| download | gsoc2013-epiphany-e3bacf063d583c69dbbd7a83e58bca777b8fcfde.tar.gz gsoc2013-epiphany-e3bacf063d583c69dbbd7a83e58bca777b8fcfde.tar.zst gsoc2013-epiphany-e3bacf063d583c69dbbd7a83e58bca777b8fcfde.zip | |
Show information about web and plugin processes in about:memory
https://bugzilla.gnome.org/show_bug.cgi?id=679764
| -rw-r--r-- | lib/ephy-smaps.c | 187 |
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); } |