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Create input pipes in separate subdirectory of /tmp

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This commit is contained in:
Yevgen Muntyan 2006-12-18 11:08:01 -06:00
parent 976396da30
commit baf8b73119
1 changed files with 46 additions and 42 deletions
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88
moo/mooapp/mooappinput.c
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@ -45,6 +45,7 @@ struct _MooAppInput
int pipe;
char *pipe_basename;
char *pipe_name;
char *pipe_dir;
GIOChannel *io;
guint io_watch;
GString *buffer; /* messages are zero-terminated */
@ -147,6 +148,13 @@ _moo_app_input_shutdown (MooAppInput *ch)
ch->pipe_name = NULL;
}
if (ch->pipe_dir)
{
remove (ch->pipe_dir);
g_free (ch->pipe_dir);
ch->pipe_dir = NULL;
}
if (ch->io_watch)
{
g_source_remove (ch->io_watch);
@ -464,13 +472,15 @@ listener_main (ListenerInfo *info)
*/
#ifndef __WIN32__
#define INPUT_PREFIX "input-"
static char *
get_prefix (const char *pipe_basename)
get_pipe_dir (const char *pipe_basename)
{
GdkDisplay *display;
char *display_name;
char *user_name;
char *prefix;
char *name;
g_return_val_if_fail (pipe_basename != NULL, NULL);
@ -479,35 +489,34 @@ get_prefix (const char *pipe_basename)
display_name = g_strcanon (g_strdup (gdk_display_get_name (display)),
G_CSET_A_2_Z G_CSET_a_2_z G_CSET_DIGITS,
'_');
'-');
user_name = g_strcanon (g_strdup (g_get_user_name ()),
G_CSET_A_2_Z G_CSET_a_2_z G_CSET_DIGITS,
'_');
'-');
prefix = g_strdup_printf ("%s_%s_%s_in.", pipe_basename, user_name, display_name);
name = g_strdup_printf ("%s/%s-%s-%s", g_get_tmp_dir (), pipe_basename, user_name,
display_name[0] == '-' ? &display_name[1] : display_name);
g_free (display_name);
g_free (user_name);
return prefix;
return name;
}
/* TODO: could you finally learn non-blocking io? */
gboolean
_moo_app_input_start (MooAppInput *ch)
{
char *prefix;
g_return_val_if_fail (!ch->ready, FALSE);
prefix = get_prefix (ch->pipe_basename);
g_return_val_if_fail (prefix != NULL, FALSE);
if (!ch->pipe_dir)
ch->pipe_dir = get_pipe_dir (ch->pipe_basename);
g_return_val_if_fail (ch->pipe_dir != NULL, FALSE);
ch->pipe_name =
g_strdup_printf ("%s/%s%d",
g_get_tmp_dir(),
prefix,
getpid ());
g_free (prefix);
mkdir (ch->pipe_dir, S_IRWXU);
ch->pipe_name = g_strdup_printf ("%s/"INPUT_PREFIX"%d",
ch->pipe_dir,
getpid ());
unlink (ch->pipe_name);
@ -549,8 +558,7 @@ _moo_app_input_start (MooAppInput *ch)
static gboolean
try_send (const char *tmpdir_name,
const char *prefix,
try_send (const char *pipe_dir_name,
const char *pid_string,
const char *data,
gssize data_len)
@ -575,7 +583,7 @@ try_send (const char *tmpdir_name,
goto out;
}
filename = g_strdup_printf ("%s/%s%s", tmpdir_name, prefix, pid_string);
filename = g_strdup_printf ("%s/"INPUT_PREFIX"%s", pipe_dir_name, pid_string);
_moo_message ("try_send: sending data to pid %s, filename %s", pid_string, filename);
if (!g_file_test (filename, G_FILE_TEST_EXISTS))
@ -633,15 +641,14 @@ out:
}
gboolean
_moo_app_input_send_msg (const char *pipe_basename,
const char *pid,
const char *data,
gssize data_len)
_moo_app_input_send_msg (const char *pipe_basename,
const char *pid,
const char *data,
gssize data_len)
{
const char *tmpdir_name, *entry;
GDir *tmpdir = NULL;
char *prefix = NULL;
guint prefix_len;
const char *entry;
GDir *pipe_dir = NULL;
char *pipe_dir_name;
gboolean success = FALSE;
g_return_val_if_fail (pipe_basename != NULL, FALSE);
@ -649,30 +656,27 @@ _moo_app_input_send_msg (const char *pipe_basename,
_moo_message ("_moo_app_input_send_msg: sending data to pid %s", pid ? pid : "NONE");
prefix = get_prefix (pipe_basename);
g_return_val_if_fail (prefix != NULL, FALSE);
prefix_len = strlen (prefix);
tmpdir_name = g_get_tmp_dir ();
pipe_dir_name = get_pipe_dir (pipe_basename);
g_return_val_if_fail (pipe_dir_name != NULL, FALSE);
if (pid)
{
success = try_send (tmpdir_name, prefix, pid, data, data_len);
success = try_send (pipe_dir_name, pid, data, data_len);
goto out;
}
tmpdir = g_dir_open (tmpdir_name, 0, NULL);
pipe_dir = g_dir_open (pipe_dir_name, 0, NULL);
if (!tmpdir)
if (!pipe_dir)
goto out;
while ((entry = g_dir_read_name (tmpdir)))
while ((entry = g_dir_read_name (pipe_dir)))
{
if (!strncmp (entry, prefix, prefix_len))
if (!strncmp (entry, INPUT_PREFIX, strlen (INPUT_PREFIX)))
{
const char *pid_string = entry + prefix_len;
const char *pid_string = entry + strlen (INPUT_PREFIX);
if (try_send (tmpdir_name, prefix, pid_string, data, data_len))
if (try_send (pipe_dir_name, pid_string, data, data_len))
{
success = TRUE;
goto out;
@ -681,9 +685,9 @@ _moo_app_input_send_msg (const char *pipe_basename,
}
out:
if (tmpdir)
g_dir_close (tmpdir);
g_free (prefix);
if (pipe_dir)
g_dir_close (pipe_dir);
g_free (pipe_dir_name);
return success;
}