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/*
* Copyright 2008 Evenflow, Inc.
*
* async-io-coroutine.h
* Macros to simplify writing coroutines for the glib main loop.
*
* This file is part of caja-dropbox.
*
* caja-dropbox is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* caja-dropbox is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with caja-dropbox. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef ASYNC_IO_COROUTINE_H
#define ASYNC_IO_COROUTINE_H
#include <glib.h>
G_BEGIN_DECLS
#define CRBEGIN(pos) switch (pos) { case 0:
#define CREND } return FALSE
#define CRYIELD(pos) do { pos = __LINE__; return TRUE; case __LINE__:;} while (0)
#define CRHALT return FALSE
#define CRREADLINE(pos, chan, where) \
while (1) { \
gchar *__line; \
gsize __line_length, __newline_pos; \
GIOStatus __iostat; \
\
__iostat = g_io_channel_read_line(chan, &__line, \
&__line_length, \
&__newline_pos, NULL); \
if (__iostat == G_IO_STATUS_AGAIN) { \
CRYIELD(pos); \
} \
else if (__iostat == G_IO_STATUS_NORMAL) { \
*(__line + __newline_pos) = '\0'; \
where = __line; \
break; \
} \
else if (__iostat == G_IO_STATUS_EOF || \
__iostat == G_IO_STATUS_ERROR) { \
CRHALT; \
} \
else { \
g_assert_not_reached(); \
CRHALT; \
} \
}
G_END_DECLS
#endif
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