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Avoid running in an assertion with small writes. (#343566, Chris Wilson)

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2006-06-01  Matthias Clasen  <mclasen@redhat.com>

	* glib/giochannel.c (g_io_channel_write_chars): Avoid
	running in an assertion with small writes.  (#343566, Chris
	Wilson)

	* tests/iochannel-test.c: Add a testcase for small writes.
This commit is contained in:
Matthias Clasen 2006-06-01 15:57:38 +00:00 committed by Matthias Clasen
parent a5b4b8bfb1
commit 14538bb8d6
4 changed files with 56 additions and 1 deletions
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6
ChangeLog
View File

@ -1,5 +1,11 @@
2006-06-01 Matthias Clasen <mclasen@redhat.com>
* glib/giochannel.c (g_io_channel_write_chars): Avoid
running in an assertion with small writes. (#343566, Chris
Wilson)
* tests/iochannel-test.c: Add a testcase for small writes.
* glib/glib.symbols:
* glib/ghash.h:
* glib/ghash.c: Add g_hash_table_{remove,steal}_all to

6
ChangeLog.pre-2-12
View File

@ -1,5 +1,11 @@
2006-06-01 Matthias Clasen <mclasen@redhat.com>
* glib/giochannel.c (g_io_channel_write_chars): Avoid
running in an assertion with small writes. (#343566, Chris
Wilson)
* tests/iochannel-test.c: Add a testcase for small writes.
* glib/glib.symbols:
* glib/ghash.h:
* glib/ghash.c: Add g_hash_table_{remove,steal}_all to

2
glib/giochannel.c
View File

@ -2009,7 +2009,7 @@ g_io_channel_write_chars (GIOChannel *channel,
* and never receiving an EAGAIN.
*/
if (channel->write_buf->len >= channel->buf_size)
if (channel->write_buf->len >= channel->buf_size - MAX_CHAR_SIZE)
{
gsize did_write = 0, this_time;

43
tests/iochannel-test.c
View File

@ -11,6 +11,47 @@
#define BUFFER_SIZE 1024
static void
test_small_writes (void)
{
GIOChannel *io;
GIOStatus status;
guint cnt;
gchar tmp;
GError *error = NULL;
io = g_io_channel_new_file ("iochannel-test-outfile", "w", &error);
if (error)
{
g_warning ("Unable to open file %s: %s",
"iochannel-test-outfile",
error->message);
g_error_free (error);
exit (1);
}
g_io_channel_set_encoding (io, NULL, NULL);
g_io_channel_set_buffer_size (io, 1022);
cnt = 2 * g_io_channel_get_buffer_size (io);
tmp = 0;
while (cnt)
{
status = g_io_channel_write_chars (io, &tmp, 1, NULL, NULL);
if (status == G_IO_STATUS_ERROR)
break;
if (status == G_IO_STATUS_NORMAL)
cnt--;
}
g_assert (status == G_IO_STATUS_NORMAL);
g_io_channel_unref (io);
}
gint main (gint argc, gchar * argv[])
{
GIOChannel *gio_r, *gio_w ;
@ -125,6 +166,8 @@ gint main (gint argc, gchar * argv[])
g_io_channel_unref(gio_r);
g_io_channel_unref(gio_w);
test_small_writes ();
return 0;
}