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freetdm: OPENZAP-124 - Add round robin hunting direction (Patched by Ric)

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This commit is contained in:
Moises Silva
2010-12-17 20:04:30 -05:00
parent a1a50c87ec
commit aa69927b8f
4 changed files with 48 additions and 2 deletions
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41
libs/freetdm/src/ftdm_io.c
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@@ -1706,6 +1706,21 @@ static ftdm_status_t __inline__ get_best_rated(ftdm_channel_t **fchan, ftdm_chan
return FTDM_SUCCESS;
}
static uint32_t __inline__ rr_next(uint32_t last, uint32_t min, uint32_t max, ftdm_direction_t direction)
{
uint32_t next = min;
ftdm_log(FTDM_LOG_DEBUG, "last = %d, min = %d, max = %d\n", last, min, max);
if (direction == FTDM_RR_DOWN) {
next = (last >= max) ? min : ++last;
} else {
next = (last <= min) ? max : --last;
}
return next;
}
FT_DECLARE(int) ftdm_channel_get_availability(ftdm_channel_t *ftdmchan)
{
int availability = -1;
@@ -1748,6 +1763,8 @@ FT_DECLARE(ftdm_status_t) ftdm_channel_open_by_group(uint32_t group_id, ftdm_dir
if (direction == FTDM_TOP_DOWN) {
i = 0;
} else if (direction == FTDM_RR_DOWN || direction == FTDM_RR_UP) {
i = rr_next(group->last_used_index, 0, group->chan_count - 1, direction);
} else {
i = group->chan_count-1;
}
@@ -1762,16 +1779,24 @@ FT_DECLARE(ftdm_status_t) ftdm_channel_open_by_group(uint32_t group_id, ftdm_dir
if (request_voice_channel(check, ftdmchan, caller_data, direction)) {
status = FTDM_SUCCESS;
if (direction == FTDM_RR_UP || direction == FTDM_RR_DOWN) {
group->last_used_index = i;
}
break;
}
calculate_best_rate(check, &best_rated, &best_rate);
if (direction == FTDM_TOP_DOWN) {
if (i >= group->chan_count) {
if (i >= (group->chan_count - 1)) {
break;
}
i++;
} else if (direction == FTDM_RR_DOWN || direction == FTDM_RR_UP) {
if (check == best_rated) {
group->last_used_index = i;
}
i = rr_next(i, 0, group->chan_count - 1, direction);
} else {
if (i == 0) {
break;
@@ -1850,6 +1875,8 @@ FT_DECLARE(ftdm_status_t) ftdm_channel_open_by_span(uint32_t span_id, ftdm_direc
if (direction == FTDM_TOP_DOWN) {
i = 1;
} else if (direction == FTDM_RR_DOWN || direction == FTDM_RR_UP) {
i = rr_next(span->last_used_index, 1, span->chan_count, direction);
} else {
i = span->chan_count;
}
@@ -1860,6 +1887,10 @@ FT_DECLARE(ftdm_status_t) ftdm_channel_open_by_span(uint32_t span_id, ftdm_direc
if (i > span->chan_count) {
break;
}
} else if (direction == FTDM_RR_DOWN || direction == FTDM_RR_UP) {
if (i == span->last_used_index) {
break;
}
} else {
if (i == 0) {
break;
@@ -1873,6 +1904,9 @@ FT_DECLARE(ftdm_status_t) ftdm_channel_open_by_span(uint32_t span_id, ftdm_direc
if (request_voice_channel(check, ftdmchan, caller_data, direction)) {
status = FTDM_SUCCESS;
if (direction == FTDM_RR_UP || direction == FTDM_RR_DOWN) {
span->last_used_index = i;
}
break;
}
@@ -1880,6 +1914,11 @@ FT_DECLARE(ftdm_status_t) ftdm_channel_open_by_span(uint32_t span_id, ftdm_direc
if (direction == FTDM_TOP_DOWN) {
i++;
} else if (direction == FTDM_RR_DOWN || direction == FTDM_RR_UP) {
if (check == best_rated) {
span->last_used_index = i;
}
i = rr_next(i, 1, span->chan_count, direction);
} else {
i--;
}