dev/ocs_fc/ocs_utils.c

1630 static int32_t ocs_segment_remaining(ocs_textbuf_segment_t *segment);
1632 static void ocs_textbuf_segment_free(ocs_t *ocs, ocs_textbuf_segment_t *segment);
1662 	ocs_textbuf_segment_t *segment = ocs_textbuf_get_segment(textbuf, idx);
1663 	if (segment == NULL) {
1666 	return segment->buffer;
1671 	ocs_textbuf_segment_t *segment = ocs_textbuf_get_segment(textbuf, idx);
1672 	if (segment == NULL) {
1675 	return segment->buffer_length;
1680 	ocs_textbuf_segment_t *segment = ocs_textbuf_get_segment(textbuf, idx);
1681 	if (segment == NULL) {
1684 	return segment->buffer_written;
1713 	/* Add first segment */
1720 	ocs_textbuf_segment_t *segment = NULL;
1723 		segment = ocs_malloc(textbuf->ocs, sizeof(*segment), OCS_M_ZERO | OCS_M_NOWAIT);
1724 		if (segment != NULL) {
1725 			segment->buffer = ocs_malloc(textbuf->ocs, textbuf->allocation_length, OCS_M_ZERO | OCS_M_NOWAIT);
1726 			if (segment->buffer != NULL) {
1727 				segment->buffer_length = textbuf->allocation_length;
1728 				segment->buffer_written = 0;
1729 				ocs_list_add_tail(&textbuf->segment_list, segment);
1738 				ocs_textbuf_segment_free(textbuf->ocs, segment);
1739 				segment = NULL;
1743 	return segment;
1747 ocs_textbuf_segment_free(ocs_t *ocs, ocs_textbuf_segment_t *segment)
1749 	if (segment) {
1750 		if (segment->buffer && !segment->user_allocated) {
1751 			ocs_free(ocs, segment->buffer, segment->buffer_length);
1753 		ocs_free(ocs, segment, sizeof(*segment));
1761 	ocs_textbuf_segment_t *segment;
1765 		ocs_list_foreach(&textbuf->segment_list, segment) {
1767 				return segment;
1779 	ocs_textbuf_segment_t *segment;
1785 	segment = ocs_malloc(ocs, sizeof(*segment), OCS_M_ZERO | OCS_M_NOWAIT);
1786 	if (segment) {
1787 		segment->buffer = buffer;
1788 		segment->buffer_length = length;
1789 		segment->buffer_written = 0;
1790 		segment->user_allocated = 1;
1791 		ocs_list_add_tail(&textbuf->segment_list, segment);
1801 	ocs_textbuf_segment_t *segment;
1805 		ocs_list_foreach_safe(&textbuf->segment_list, segment, n) {
1806 			ocs_list_remove(&textbuf->segment_list, segment);
1807 			ocs_textbuf_segment_free(ocs, segment);
1831 	ocs_textbuf_segment_t *segment;
1840 	/* fetch last segment */
1841 	segment = ocs_list_get_tail(&textbuf->segment_list);
1843 	avail = ocs_segment_remaining(segment);
1845 		if ((segment = ocs_textbuf_segment_alloc(textbuf)) == NULL) {
1848 		avail = ocs_segment_remaining(segment);
1851 	written = ocs_vsnprintf(segment->buffer + segment->buffer_written, avail, fmt, ap);
1861 			*(segment->buffer + segment->buffer_written) = 0;
1863 			/* Allocate a new segment */
1864 			if ((segment = ocs_textbuf_segment_alloc(textbuf)) == NULL) {
1865 				ocs_log_err(textbuf->ocs, "alloc segment failed\n");
1868 			avail = ocs_segment_remaining(segment);
1871 			written = ocs_vsnprintf(segment->buffer + segment->buffer_written, avail, fmt, save_ap);
1874 	segment->buffer_written += written;
1883 	ocs_textbuf_segment_t *segment;
1886 		segment = ocs_list_get_tail(&textbuf->segment_list);
1888 		if (ocs_segment_remaining(segment)) {
1889 			*(segment->buffer + segment->buffer_written++) = c;
1891 		if (ocs_segment_remaining(segment) == 0) {
1969 ocs_segment_remaining(ocs_textbuf_segment_t *segment)
1971 	return segment->buffer_length - segment->buffer_written;
1978 	ocs_textbuf_segment_t *segment;
1982 		/* zero written on the first segment, free the rest */
1983 		ocs_list_foreach_safe(&textbuf->segment_list, segment, n) {
1985 				segment->buffer_written = 0;
1987 				ocs_list_remove(&textbuf->segment_list, segment);
1988 				ocs_textbuf_segment_free(textbuf->ocs, segment);